A new pollen (花粉) study showed that drought was responsible for the extinction of civilizations more than 3,000 years ago during the Bronze Age.
The reason behind why the civilizations in and around modern-day Israel suddenly broke down more than 3,000 years ago has remained a mystery up until now. A new pollen study by Tel Aviv University researchers finally solved this Bronze Age mystery.
Prof. Israel Finkelstein showed that owing to serious climate changes, the entire world of the Bronze Age crumbled in a short period of time. The discovery was made on the basis of a high-resolution analysis of pollen grains taken from sediments (沉淀物) beneath the Sea of Galilee and the western shore of the Dead Sea.
Prof. Finkelstein received support from the European Research Council to conduct research aimed at reconstructing ancient Israel. Researchers of the part of the project that dealt with climate change extracted (提取) about 60 feet of samples of gray muddy sediment from the center of the Sea of Galilee in northern Israel. They had to drill through 1,000 feet of water and into 65 feet of the lake bed and were able to recover evidence dating over the past 9,000 years.
“Pollen is the most enduring organic material in nature,” explained Dr. Dafna Langgut, a pollen researcher who carried out the actual work of sampling. “These grains tell us about the plants that grew near the lake in the past and therefore prove the climatic conditions in the region.”
Researchers noted a sharp decrease in Mediterranean trees like oaks and pines in the Late Bronze Age. According to study experts, this could be because of repeated periods of drought. The droughts may have resulted in long famines, forcing people to migrate from north to south.The underlined word “crumbled” in Paragraph 3 means _____.
| A．settled | B．changed |
| C．established | D．disappeared |
Prof. Finkelstein conducted the new pollen study to _____.
| A．earn some money |
| B．recreate ancient Israel |
| C．learn more about local plants |
| D．discover the ancient civilizations |
By conducting the study, scientists found _____.
| A．Mediterranean trees were rare in the Early Bronze Age |
| B．climate change was to blame for the lost civilization |
| C．people in the Late Bronze Age starved to death |
| D．droughts were rare during the Bronze Age |
The text is most probably taken from _____.
| A．a travel magazine | B．a history textbook |
| C．a newspaper report | D．an agricultural book |
BEIJING，Feb．5，2013（Xinhua）－Chinese health authorities on Tuesday launched a campaign to fight against assisted reproductive technology （ART：辅助生育技术） abuse．Unauthorized ART use，surrogate motherhood and the illegal collection and supply of sperm and eggs，as well as the illegal sale and abuse of ovulation induction（诱导排卵） medicine，will be targeted．
The Ministry of Health and health department of the People's Liberation Army General Logistics Department jointly announced the campaign at a conference．Both departments also ordered all of their local branches to suspend permits for new organizations that wish to offer ART treatments．That is，new organizations will not appear recently．Official figures showed that at the end of 2012，China had 358 organizations authorized to conduct ART treatment．
The health ministry also delivered a brief statement of the country's current infertility rate（不孕率） and ART use．The infertility rate in China is now between 7 and 10 percent，the ministry said．Some 70 to 80 percent of women who are suffering from infertility can be pregnant after changing their lifestyles and receiving medical treatment．Around 20 percent of infertile couples have to resort to ART to have babies．In 2011，about 350，000 people received ART treatment and more than 60，000 infertile couples successfully had children with the help of ART，the ministry said．ART abuse DOSEN'T include________．
| A．surrogate motherhood |
| B．unauthorized ART use |
| C．the regular usage of medicine |
| D．the illegal supply of sperm and eggs |
What does the underlined word “suspend” （paragraph 2） probably mean?
| A．Support． | B．Pause． | C．Allow． | D．Ban． |
From the last paragraph we can know________．
| A．Nearly10 percent of couples could not have their own babies |
| B．70 to 80 percent of women could not be pregnant now |
| C．Over 350，000 infertile couples had their babies with the help of ART |
| D．About one fifth of infertile couples have to turn to ART for help |
What's the best title of the passage?
| A．China targets ART abuse |
| B．ART is used in China |
| C．ART is illegal in China |
| D．China increases ART using |
BEIJING, (Xinhua) —China’s capital city launched its first underground library, “M Subway Library” on Jan. 12，2015. The theme of its first activity is “Our Characters”. Citizens riding the special train on subway Line 4 now can read e-books provided by the National Library by scanning the QR code in the carriage.
“M Subway Library” is a public welfare program initiated by the Beijing MTR and the National Library to provide qualified book resources to the public through the platform of public transportation. The library will organize different themed activities regularly and recommend a dozen free books to the public each year in the long term.
XINING, (Xinhua) —A bullet train made its maiden trip from Xining city to Lanzhou city in Northwest China on Dec. 26, 2014, marking the start of the full operations of the Lanxin high-speed railway. The Lanxin high-speed railway links Urumqi in the Xinjiang Uygur Autonomous Region with Xining, capital of Qinghai Province, and Lanzhou, capital of Gansu Province, slashing the total travel time from more than 23 hours to 11 hours and 50 minutes. The 1,776-kilometer high-speed rail line, with a designed speed of 250 kilometers per hour, is China’s first high-speed railway built in a high-altitude region.
NINGBO, (Xinhua) —Ningbo Subway Line 1 started running special trains with 3D paintings featuring the city’s culture starting on Dec. 20, 2014．Through the paintings, the city in East China’s Zhejiang province seeks to share its culture and attract more outside visitors. The paintings focus on four themes: rice cake, fishing festival, books and Buddhism.The purpose of launching “M Subway Library” is to .
| A．earn more money by making advertisements in the carriage |
| B．attract more tourists to come to Beijing to take the subway |
| C．make the idea of “Green Travel” go deep into people’s mind |
| D．offer the passengers an additional reading platform |
Which of the following statements is correct according to the news?
| A．The Lanxin high-speed railway covers Gansu, Xinjiang and Tibet. |
| B．It is China’s first high-speed railway. |
| C．It has a length of 1,776 kilometers. |
| D．It will take you 11 hours and 50 minutes to travel from Xining to Urumqi. |
What can you enjoy when you ride the special train on subway Line 1 in Ningbo?
| A．Chinese classical music. |
| B．3D paintings about Ningbo’s culture. |
| C．Traditional Chinese paintings. |
| D．3D films which were shot in Ningbo. |
Here are four pieces of news from China Daily:
SHANGHAI---The Huachen Group, which has put 83 million yuan in the development of the commerce market since its official registration late last year, recently held a meeting in Shanghai to show the use of its newly opened tourism business payment network. The network aims to serve tourists from all over the world, but especially from Europe and the United States where credit cards are popularly used. After opening the www.ehinaeonet.com website, netizens can get information about hotels and tourism services on tourism page. Hotels and services can be reserved and payment made through credit cards. The network opened in February in Beijing.
SYDNEY---The Sydney Olympic flame will travel underwater on Australia’s Great Barrier Reef during the torch relay following a successful test.
Scuba diver Wendy Craig, a marine biologist, will carry the torch on three-to-four-minute underwater journey at Agincourt Reef on June 27, creating Olympic history, organizers said yesterday.
Burning at 2,000 degrees, the torch is expected to remain alight three meters underwater because of a special kind of technology which creates a “fierce flame”--- too powerful to be drowned out by water. Charles Tegner, managing director of torch creator, said the flame would burn like a flame from oxygen-producing chemicals.
BEIJING---The election of a new leader in Taiwan cannot change the fact that Taiwan is part of China. “Taiwan Independence” in whatever form will never be allowed, according to a statesman of China’s central government.
“We should listen to what the new leader in Taiwan says and watch what he does. We will observe where he will lead Cross-Straits relations. We are willing to exchange views on Cross-Straits relations and peaceful reunification(统一) with all parties, organizations and people in Taiwan who favor the one-China principle,” says the statesman, from Taiwan Affairs Office of the CPC Central Committee.
HAIKOU---Customs officers in Haikou, capital of South China’s Hainan Province, recently stopped a boat loaded with 781 cases of foreign-brand cigarettes being smuggling into China. The cigarettes are estimated to be worth more than 1.8 million yuan, said a customs officer. They discovered the smuggling boat as they were going around the northern sea area of Yangpu Port.
The smuggled cigarettes cases, packed into two containers, were disguised to avoid being examined. The boat was registered in the coastal city Xiamen in East China’s Fujian Province. All eight suspects aboard the boat were kept by the police in Haikou.
Why does the network aim to serve tourists especially from Europe and the USA?
| A．Because they are from developed countries. |
| B．Because the payments of hotels and services are usually made through credit cards in these places. |
| C．Because people in these countries travel much more than those in other countries. |
| D．Because they have more computers than others. |
Which is the best title for the third piece of news?
| A．Ready to Fight | B．No Good End |
| C．Wait and See | D．Peace Comes First |
Which of the following best explains the underlined word “disguised” in the last piece of news?
| A．Made different from the normal so as to hide the truth. |
| B．Designed for a good purpose. |
| C．Hidden out of people’s sight. |
| D．Covered with unattractive things. |
Twelve-year-old twins Lily and Audrey Andrews are teaching kids how to cook in unusual ways with their creative recipes(食谱)．Growing up in Northern California, the sisters have created their very first cookbook. Jack and Jill caught up with the girls to talk about food.
Jack and Jill: How did you two become interested in cooking?
Audrey: When we were younger, we watched cooking shows on the Food Network instead of cartoons. We were hooked and began doing anything we were allowed to do in the kitchen.
JJ: Who taught you both how to cook?
Lily: Our mom and dad taught us the basics, but when we were about 6 years old, we took cooking classes with one of our mom’s friends who is a cook. We have also taken adult classes at our local cooking school.
JJ: Do you have a favorite dish you like to cook?
A: In the winter, Lily and I love making hot soup. In the summer, we’re always coming up with new salads. We love cooking with friends and family, and one recipe that everyone can help us with is our Beef Stir Fry.
JJ: For the eater who wants to start cooking and trying new foods, where do you suggest they begin?
L: Start by adding new things to foods you already enjoy! Try to add a little curry(咖喱) to your favorite chicken dish. Start small, and slowly you’ll be open to trying tons of new things!
The underlined word “hooked” in Paragraph 3 is closest in meaning to “________”.
| A．worried | B．frightened | C．surprised | D．interested |
The twins began to learn to cook ________.
| A．from their parents |
| B．from their mom’s friend |
| C．when they went to school |
| D．when they were 6 years old |
What dish do the twins like to cook the most?
| A．Hot soup. |
| B．New salads. |
| C．It is up to the season. |
| D．It depends on their family. |
The twins advise the eater who wants to cook to ________.
| A．create lots of new things |
| B．cook the chicken dish first |
| C．prepare well before cooking |
| D．try something new little by little |
In April 2014，the world's oldest known message in a bottle was discovered floating in the Baltic Sea. It had spent 101 years lost in the ocean！The message was finally sent to the author's granddaughter.
A German fisherman named Konrad Fischer found the brown bottle near Kiel，Germany. He said he nearly threw the bottle back into the water after pulling it out of a fishing net. Then he noticed something inside.
The bottle in good condition contained a Danish postcard with two German stamps，dated May 17，1913. Although dampness had made most of the writing illegible（字迹模糊的），the readable part of the message asked whoever found it to return it to an address in Berlin. It even contained two stamps to pay for postage.
From the address，researchers found that the postcard was written by a man named Richard Platz，who was 20 years old when he wrote the message. While he was hiking on the Baltic coast with a nature appreciation group，he threw the bottle into the sea. Then the researchers began a search for any living relatives of his. Sure enough，they were able to find his 62-year-old granddaughter，Angela Erdmann，who still lives in Berlin.
“It was almost unbelievable，”Erdmann said upon being presented with her grandfather's bottle and message.“That was a pretty moving moment. Tears rolled down my face."
Erdmann never knew her grandfather，who died in 1946，but says that the discovery of the bottle has made her want to learn more about him.
The bottle remained on display at the International Maritime Museum in Hamburg until May 1．After that，the researchers examined the postcard and tried to figure out the meaning of the rest of the message.
Previously，the oldest message found in a bottle spent nearly 98 years at sea and was discovered in April 2012，according to Guinness World Records.
When Konrad Fischer picked up the bottle from the sea， ．
| A．he thought it would bring him good luck |
| B．he noticed the postcard inside immediately |
| C．he decided to uncover the secret of the bottle |
| D．he wanted to throw it back into the sea at first |
Why did Richard Platz throw the bottle with the message into the sea?
| A．He expected his granddaughter could find the postcard. |
| B．He wished the finder would send the postcard to his home. |
| C．He believed his postcard would be kept secret at sea forever. |
| D．He thought he could make friends with the finder of the bottle. |
What can be the best title for this passage？
| A．The finding of a floating bottle at the sea |
| B．A one-century-old letter to a granddaughter |
| C．The world's oldest message in a floating bottle |
| D．The oldest Danish postcard in a floating bottle |
Last Friday a storm swept through two villages in the New Territories, destroying fourteen homes. Seven others were so badly damaged that their owners had to leave them，and fifteen others had broken windows or broken roofs. One person was killed，several were badly hurt and taken to hospital，and a number of other people received smaller hurt. Altogether over two hundred people were homeless after the storm.
A farmer，Mr.Tan, said that the storm began early in the morning and lasted for over an hour.
“I was eating with my wife and children，”he said，“When we heard a loud noise. A few minutes later our house fell down on top of us. We tried our best to climb out but then I saw that one of my children was missing. I went back inside and found him，safe but very frightened.”
Mrs. Woo Mei Fong said that her husband had just left for work when she felt that her house was moving. She ran outside at once with her children.
“There was no time to take anything.” she said，“A few minutes later，the roof came down.”
Soldiers helped to take people out of the flooded area and the welfare department(福利机构)brought them food，clothes and shelter.
How many homes altogether were damaged in the storm?
| A．Fourteen. | B．Twentyone. |
| C．Twentynine. | D．Thirtysix. |
Where was Mr.Tan when the storm first began?
| A．He was in bed. | B．He was inside the house. |
| C．He was outside the house. | D．He was on the roof. |
Which of the following may be the best title for this passage?
| A．A Terrible Storm | B．A Lucky Woman |
| C．Good Soldiers | D．Clever People |
New research shows that the healthy brain may hold memories which we don’t even remember. In The Journal of Neuroscience, experts report that the brain might hold more memories than people realize, but that restoring those memories can be tricky.
Memory Check
First, participants saw a list of 120 real words mixed with 80 nonsense words. Next, they saw another word list and tried to remember which words had been on the first list. Meanwhile, their brains were scanned with functional magnetic resonance(核磁共振) imaging.
While participants reviewed the second word list, their brain scans showed more activity in a certain brain area -- the posterior（后部的） median temporal lobe(脑叶) -- when they saw words that had been on the first word list.
But participants didn’t always remember that they’d seen those words before. Sometimes, they goofed and said they hadn’t seen those words before. In other words, the posterior median temporal lobe was more sensitive to memory than participants’ consciousness, the researchers note.
“Album”of Memories
Another part of the median temporal lobe also attracted the scientists’ attention. The anterior（前面的）median temporal lobe showed more activity when participants thought they were seeing a new word, the study shows.
So, why did participants sometimes mess up their memory recall? It might be that two parts of their brain -- the posterior and anterior median temporal lobes -- might be dueling(决斗) for the upper hand in deciding what actually happened in the past, the study notes.
In other words, memories might have a photo album in the brain, but sometimes we forget what’s on all of the photo album’s pages.A person sometimes has difficulty recalling because .
| A．he is unconscious when he gets his memories |
| B．he forgets what is on the pages of the photo album |
| C．there are two parts in his brain dueling for the upper advantage |
| D．the anterior median temporal lobe is more active than the posterior |
According to the passage the researchers are .
| A．studying how a person remembers things |
| B．studying a magazine The Journal of Neuroscience |
| C．examining posterior and anterior median temporal lobes |
| D．doing experiments to find out what disturbs a person’s memory |
What did the experts discover when the participants saw the words on the first word list appear on the second word list?
| A．The instrument worked faster. |
| B．The participants were more conscious. |
| C．The posterior median temporal lobe was more active. |
| D．The anterior median temporal lobe was more active. |
The underlined wordgoofedin the fourth paragraph means .
| A．made a mess of | B．made an answer for |
| C．made out of | D．made the best of |
It was reported last week that developers could take photos from Apple mobile and Google Android devices without the phone owners knowing that the images were being taken. In Apple’s case, developers can also obtain the location information for each photo.
Senator(参议员) Charles Schumer said in a telephone interview that his office had spoken with officials at both Apple and Google on Monday.
“We asked them if they could find a way on their own to prevent Apple from having access to private information,” Mr. Schumer said. “They were friendly and open to the idea that this ought to be changed.”
On Sunday, Mr. Schumer said that he planned to send a letter to the Federal Trade Commission asking the agency to investigate Apple and Google after the privacy concerns came to light. Claudia Bourne Farrell, an F.T.C. spokeswoman, said the agency had received the letter but she could not comment further.
“It worries people to think that one’s personal photos, address book, and who knows what else can be obtained and even posted online without permission,” Mr. Schumer wrote in his letter to the F. T.C. “If the technology exists to open the door to this kind of privacy invasion, then surely technology exists to close it, and that’s exactly what must happen.”
Mr. Schumer said if Apple and Google could not come to an agreement to fix the problem, then he would be forced to take the issue further.
He said other companies had been willing to work with his office to fix issues. “I’m optimistic that we can get this changed without any regulation,” he said. “If it’s not changed, then we’ll turn to the F.T.C., and if that doesn’t work then we’ll consider legislative approach.”
The F.T.C. has warned companies to try to be more vigilant(警醒的) in their efforts to protect consumers when it comes to privacy.The senators spoke with officials at both Apple and Google_______.
| A．to urge them not to invade consumers’ privacy. |
| B．to discuss whether it is illegal to have access to private information. |
| C．to stop them from developing the technology of taking photos. |
| D．to keep them from obtaining the location information for each photo. |
Which of the following statements is True?
| A．Privacy invasion from Apple has existed for a long time. |
| B．Mr. Schumer takes the privacy concerns caused by Apple and Google seriously. |
| C．Privacy invasion from Google has existed for a long time. |
| D．Apple and Google have decided to make a change. |
Mr. Schumer’s letter to the F.T.C. mainly shows that the technology to open the door to privacy invasion_______.
A. causes privacy invasion to happen frequently.
B. can be used if permitted.
C. causes people to worry about the safety of their personal information.
D. causes personal information to be posted online without permission.Where can we read about the passage?
| A．In a newspaper. | B．In a magazine. |
| C．In a science report. | D．In a textbook. |
Decreasing grain prices along with growing costs of production means Chinese farmers are unlikely to see a significant rise in income next year.
China’s economic planning chief Ma Kai expressed the concern as the government undertakes an ambitious program to improve rural people’s lives.
Grain prices have been dropping since April; and prices of wheat, corn and rice fell 5 per cent from August to October compared with the same period last year, Ma, minister of the National Development and Reform Commission, told an annual meeting on development and reform held over the weekend.
Meanwhile, prices of production materials rose 9.1 per cent year on year during the first 10 months.
The situation makes it difficult to achieve a “new socialist countryside,” which was last week highlighted（引起注意）as a new concept and “common action” of the whole Party and nation.
Vice-Minister of Agriculture Yin Chengjie also said China’s entry to the World Trade Organization also creates hurdles for income rises for the country’s 780 million farmers.
Farmers’ income is expected to increase by 5 per cent this year, hitting the target set by the central government at the beginning of this year.
Last year, per capita net income（个人平均纯收入）of Chinese farmers reached 2,936 yuan (US$362), up 6.8 per cent year on year, and the highest increase since 1997.
Ma also said China would continue to seek fast, steady economic growth in 2006 but more efforts will be made to deal with the challenges brought about by overheating in some industrial sectors (区域).
(from China Daily, December 5, 2005)The writer thinks it difficult to achieve a “new socialist countryside” because _____.
| A．grain prices decrease and production costs grow |
| B．“new socialist countryside” is a new concept |
| C．prices of production materials rose 9.1 percent |
| D．many farmers are working in industrial sectors |
The underlined word “hurdles” in Paragraph 6 means _____ .
| A．promotion | B．fear | C．difficulties | D．possibility |
From1997 to 2005, the highest increase in farmers’ income was achieved in _____.
| A．2004 | B．2002 | C．2003 | D．2005 |
A group of swimmers has described how a group of dolphins protected them from a group of white sharks （食人鲨）off the coast of New Zealand. The lifeguards were on a training swim when they came across a group of great white sharks before the dolphins raced in to help.
The swimmers were surrounded by the dolphins for forty minutes before they were able to make them safety back to the beach. It was an uncomfortable experience as they were circled by a group of white sharks, which came within a couple of meters of them. Lifeguard Rob Howes was in the water with a colleague and his teenage daughter. He said around half a dozen dolphins suddenly appeared and forced them to gather together. The mammals swam in tight circles to create a protective wall between the white sharks and the lifeguards as the great white sharks were under the surface.
The swimmers said the dolphins were extremely upset and repeatedly slapped (拍打) the water with their tails as if to try to prevent the white sharks from attacking them. It’s a day they’ll never forget, especially for one who was on her first day as a volunteer. They have no doubt that the dolphins acted on purpose to protect them. Researchers have said that they’re not surprised. A marine biologist insisted that dolphins, which are considered to be one of the most intelligent mammals, “like to help the helpless.”How many swimmers are attacked by the white sharks?
| A．Two. | B．Three. | C．Four. | D．Five. |
It seemed that the dolphins slapped the water with their tails to ____.
| A．attack the white sharks and the lifeguards |
| B．play with water together for pleasure |
| C．stop the lifeguards being harmed by the sharks |
| D．attract the white sharks to kill the lifeguards |
The underlined words “a volunteer” refers to____.
| A．a lifeguard | B．Rob Howes’s workmate |
| C．Rob Howes | D．Rob Howes’s daughter |
Which of the following can be the best title?
| A．Dolphins Protect Swimmers from Sharks |
| B．Sharks Protect Swimmers from Dolphins |
| C．Lifeguards Protect Dolphins from Sharks |
| D．Lifeguards Protect Sharks from Dolphins |
If man’s best friend is a dog, then who is a dog’s best friend? That would be Rover, Glow, Ivan or Raina. They recently donated (捐赠) blood to other dogs. And they did it without having to travel far from home: they visited an animal bloodmobile.
Like the Red Cross vehicles for humans, the University of Pennsylvania’s traveling vet lab goes to where the donors are to make it easier to give. The bloodmobile makes weekly rounds through Philadelphia and New Jersey.
Like humans, not every dog is qualified(合格的) to donate blood. The dogs are examined for health first. Dogs must have the correct blood type, weigh at least 55 pounds and be under 8 year old. About 150 dogs take part in the program. Each donates three or four pints(品脱) a year, which can help animals suffering from illness like cancer or an accident like being hit by a car.
Sandy Lucas brought her 7-year-old dog, Raina, to the bloodmobile last week. She said she wouldn’t have taken the dog to Penn Vet’s animal hospital in downtown Philadelphia, which is twice as far from her home. “I was very, very excited that she had the right blood that was needed to help another dog out,” said Lucas. “We’ll surely do it again.”
Just like people, the donors get a snack and a heart-shaped sticker immediately after giving. What’s more, they receive dog food to take home.
If dogs are doing what they can to save other dogs, why can’t we do it to save other people? Next time you hesitate(犹豫) over whether to donate blood or not, think of the dogs.The writer mentions Rover, Glow, Ivan and Raina in Para. 1 mainly because _________.
| A．they are man’s best friends. |
| B．they are common names for dogs. |
| C．they get along well with other dogs. |
| D．they have donated blood to other dogs. |
What do we know about the traveling vet lab?
| A．It is a Red Cross vehicle. |
| B．It collects dogs’ blood for other dogs. |
| C．It travels through Philadelphia every day. |
| D．It was donated by the University of Pennsylvania. |
What can we learn from Para.4?
| A．Sandy Lucas is unwilling to let her dog donate blood. |
| B．The bloodmobile welcomes dogs from anywhere in the city. |
| C．Penn Vet’s animal hospital in downtown Philadelphia is popular. |
| D．The animal bloodmobile has made it easier for dogs to donate blood. |
By writing the last paragraph, the author wants to ________.
| A．ask us to help dogs. |
| B．show the importance of dogs. |
| C．encourage us to donate blood. |
| D．compare humans with dogs. |
BEIJING - A research team led by Chinese scientists have discovered dietary modulation of gut microbiota（膳食干预肠道菌群）can alleviate both genetic and simple obesity in children.
The findings of the team, led by Zhao Liping with Shanghai Jiaotong University, Yin Aihua with the Guangdong province children's hospital, and Tang Huiru with Chinese Academy of Sciences, have been published on EBioMedicine, a renowned medical journal co-sponsored by Cell and The Lancet in July.
The team identified bacterial genomes specifically for producing obesity-related metabolites（代谢物）, and said an improved gut microbiota can significantly help to treat genetic obesity such as Prader-Willi Syndrome (PWS).
Beginning in childhood, PWS affected kids develop an insatiable appetite, leading to chronic overeating and obesity.
The scientists used a diet therapy with beneficial gut bacteria on trial patients and found considerable diminished appetite, weight loss and improved health conditions on the patients.
The paper concluded dysbiosis（失调）of gut microbiota is highly related with both genetic and simple obesity in children, implicating dietary modulation of gut microbiota a potentially effective treatment method.
Which of the following factors contributes to child obesity ?
| A．dietary modulation of gut microbiota |
| B．beneficial gut bacteria |
| C．an improved gut microbiota |
| D．dysbiosis of gut microbiota |
Which can replace the underlined word “diminished”？
| A．unsatisfied | B．increased |
| C．decreased | D．good |
Where is the passage extracted?
| A．Medicine book | B．Science book |
| C．Doctor’s instructions | D．News report |
Which might be the best title for the passage?
| A．Chinese scientists discover treatment to child obesity. |
| B．The reasons for genetic obesity in children has been found. |
| C．Obesity-related research has been done by Chinese scientists. |
| D．An effective treatment to obesity has been found. |
【原创】Recently a series of reports appeared online in the United States and the United Kingdom lamenting(叹息) the “Lazy French”. A new labor law in France had apparently banned organizations from e-mailing their employees after 6 p.m. In fact, it turned out to be more a case of “lazy journalists” than “lazy French”: as The Economist explained, the “law” was not a law at all, but a labor agreement aimed at improving health among a group of professionals.
Brits and Americans have long suspected that the French are goofing off(吊儿郎当) while they – the good corporate soldiers—continue to toil away. They are proud about it, too. In the age of the smartphone, there’s no such things as “downtime”(停工期), and we claim that we are happier—and more productive – for it.
Are we, though? After reviewing thousands of books, articles and papers on the topic and interviewing dozens of experts in different fields, I don’t think so. When we are checking business news in bed or responding to co-workers. But, actually, we’re mostly just getting the small, easy things done. Being busy is not equal to being effective.
And let’s not forget about the surrounding play, which often distracts us from accomplishing our most important tasks. Facebook and Twitter report that their sites are most active during office hours. After all ,the employee who’s required to respond to her boss on Sunday morning will think nothing of responding to friends on Wednesday afternoon. Constant connection means that we’re “always at work”, yes, but also that we’re “never at work”—fully.
Some parts of the workforce do rely on constant connection. But others should be given proper breaks. The great technology historian, Melvin Kranzberg, said, “Technology is neither good nor bad, and nor is it neutral(中立的).” That statement should become a real principle of the information age. We must actively decide on our levels of technology engagement at different times to maximize productivity, success and happiness.The author mentions “lazy French” at the beginning of the passage in order to __________.
| A．criticize them for how they work |
| B．introduce the subject of working styles |
| C．show the way they work |
| D．explain how they differ from Americans and Brits |
Why did the author review many materials and interview many experts?
| A．It was his work to do that. |
| B．He needed to prepare plenty of materials for his work. |
| C．He wanted to prove that his working style was correct. |
| D．He wanted to find out which way of working was better. |
What can we conclude from the passage?
| A．We should make better use of technology. |
| B．Being busy makes us happier and more productive. |
| C．Small tasks can be done at home, but important ones must be done in the office. |
| D．In terms of working style, we should learn from the French. |
Thousands of taxi drivers in Shenyang, Liaoning province, reportedly blocked streets with their vehicles on Sunday in protest against unlicensed vehicles using taxi-hiring apps(打车软件) and apps-based car rental companies providing passenger services, including high-end cars. Although the drivers also complained about the withdrawal of the fuel subsidy by the government, their main complaint was the loss of business because of the rising number of Internet-based car services companies.
On Wednesday, news reports came that Beijing transport authorities will take measures to stop the illegal “taxi business” of private cars through the newly rising Internet apps, following the footsteps of Shenyang and Nanjing.
It is not yet clear how the Shenyang city government will handle the issue and whether it will declare the services offered by market leaders such as Didi Dache, a taxi-hiring app provider backed by Tencent Holdings, and Kuaidi Dache illegal. But Shanghai transport regulators have set a rule, by banning Didi Zhuanche, or car services offered by Didi Dache in December.
Such regulations will cause a setback to the car-hiring companies and investors that are waiting to cash in on the potentially booming business. Just last month, Didi Dache got $700 million in funding from global investors, including Singapore state investment company Temasek Holdings, Russian investment company DST Global and Tencent. Besides, the market is uncertain that Kuaidi Dache is about to finalize its latest round of funding after getting $800 million from global investors.
Regulatory uncertainties, however, could cast a shadow on the future of the Internet-based car-hiring services, which have become popular in most of China’s big cities. To be fair, these companies’ business model is anything but bad. For example, Didi Zhuanche works side by side with established car rental companies to provide high-end car service mainly for businesspeople through the Internet and mobile phone apps.
Every link in this business model chain has legal companies and services. Hence, it is hard to define it as illegal and ban it.Why did taxi drivers in Shenyang block the streets with their vehicles?
| A．Because they wanted the government to increase their driving allowances. |
| B．Because they wanted to be educated how to use the taxi-hiring apps. |
| C．Because they wanted to make their main complaints known to the government. |
| D．Because they wanted to call on passengers not to hire the private cars. |
The author’s attitude to banning internet car-hiring service is______.
| A．positive | B．negative | C．neutral | D．unclear |
Which of the following statements is false according to the passage?
| A．The problem referred to in the passage exists in all cities |
| B．App-based car rental is helpful to some degree |
| C．The government should regulate the app-based car rental market |
| D．Didi Dache is a China-foreign joint company |
From the passage we learn ___________.
| A．Shenyang banned apps-based car rental companies |
| B．Shanghai is the second city banning Didi Zhuanche |
| C．some international investment companies have faith in the future of apps-based car rental companies |
| D．it is easy to describe the apps-based car rental companies illegal |
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