Since May 8， Boston Dynamics， doglike robot， Spot， has been in use at BishanAng Mo Kio Park in Singapore to help encourage social distancing during the COVID19 pandemic （新冠肺炎疫情） according to a report in the South China Morning Post．
Singpore’s government is funding the experiment of the robotic dog， which will last for two weeks at the park during offpeak（非高峰的） hours．
"The robot isn’t enforcing （强制 ）． It’s just giving people information and encouraging them， "Boston Dynamics founder Marc Raibert told CNBC． "When Spot is patrolling（巡逻）the area， there’s a parks officer nearby who can do whatever enforcement he decides is suitable． "
Cameras fixed on Spot will scan the surroundings and help officers work out the number of visitors in the park， but they cannot read faces and won’t collect any personal information． It also carries a loudspeaker to broadcast a prerecorded message to remind visitors of the importance of social distancing．
Without enough manpower， Singapore is turning to robotics to reduce the manpower required for park patrols and remind people about the risks they may be putting themselves and others in．
The question， however， is whether their use of Spot will be a good tool or will or only attract more people to it instead．
If the twoweek experiment proves successful， the government will consider using Spot at the park during peak hours． Singapore will also do studies to see if it’s worth using other Spots in other parks． Already， Singapore engineers are trying to improve Spot， making it tell if people are together in a group or strangers passing on the grass．
No one knows if Spot will stay after the pandemic is gone， but one thing is for sure： the robot is the hardest working dog in the world．
（1）Why is Spot used at BishanAng Mo Kio Park？
A． To draw visitors， attention to it．
B． To help encourage social distancing．
C． To read and record visitors， faces．
D． To help collect private information．
（2）The underlined word "they" in Paragraph 4 refers to（指的是） ．
A． visitors
B． strangers
C． cameras
D． officers
（3）What can we learn from the last 3 paragraphs？
A． The experiment is still in progress．
B． The use of Spot proves to be a good tool．
C． Spot will stay after the pandemic is over．
D． Singapore will no longer need other Spot robots．
（4）According to the passage， which of the following is TRUE？
A． Spot scares people into keeping a distance in public．
B． Spot patrols the park for two weeks during peak hours．
C． Spot can tell people together in a group from strangers passing by．
D． The parks officer nearby decides on the enforcement instead of Spot．
Texting while driving is against the law in 47 states． But what about texting while walking？ A 2018 study reported that more than 2， 500 people in the US ended up in hospitals resulting from using a mobile device（设备） while walking．
Hawaii passed a law making it illegal（违法的） to text or look down at a mobile device while crossing the street． It is the first state with a law like this． Do people think more places should accept such a law？ The LA Times did a survey． Here are some replies they received．
Rena Jose， 2， New York Which is more important， texting or safety？ If you are looking at your phone while walking， you might not see a car come or traffic lights turn red． It can be very dangerous． For example， in Japan， one person fell into a lake and another got her leg stuck in a hole， because both had their mind on their phone． We should make texting while crossing the street illegal in more cities． |
Andy Selvam， 55， California People do many things that cause injury to themselves but are not illegal， such as climbing mountains， driving cars， swimming and so on． People might get hurt from texting and walking if they're not paying attention． But I still think they should have a choice． |
Bob Madigan， 45， Oregon As humans， we can make our own decisions． I'm not saying it's safe， but we don't need the government to babysit us． If we want to learn to make smart decisions， the government needs to stop telling us what to do． After all， this is a free country． |
Andrew Black， 34， Alaska This law is a good idea﹣compare this protection with seat belts． If this law is passed all over US， people will be worried． But is there really a way to please everyone？ This would not be for fun． It would be safe and good for all Americans． |
（1）According to the passage， in ， it is against the law if people text while crossing the street．
A． Alaska
B． California
C． Hawaii
D． New York
（2）The LA Times did the survey most probably to ．
A． win the hearts of more readers
B． encourage more states to pass the law
C． ask readers if they agree with texting while driving
D． learn about people's opinions on texting while walking
（3）In Rena's reply， she showed the danger of texting while walking by ．
A． using numbers
B． giving examples
C． asking questions
D． telling stories
（4）Which of the following is Andrew Black's opinion？
A． Texting is more important than safety．
B． The law would help to keep Americans safe．
C． It's easy to please everyone when passing a law．
D． Whether to text or not while walking is people's own choice．
Over the last six months， the coronavirus pandemic（冠状病毒疫情） has affected different countries and regions in different ways．Here， we'll take a look at a few of the most important events that have happened．
Italy shuts down
On March 10， the Italian government decided to put the whole country on lockdownafter the number of cases（病例） in the country started increasing quickly， people were suggested not leaving their home．The first case was detected（检测到） as early as January 31．In the following weeks， the number of cases reached over 10， 000 by the time of the lockdown．The lockdown affected 16 million people across the country．Italy was one of the first of many countries that cami ed out lockdown s to prevent the spread of the virus．
WHO declares pandemic
On March 11， World Health Organization（WHO） offically characterized（描述） COVID﹣19 as a pandemic．This was because of a growing number of cases around the world．By this time， there were more than 20， 000 cases in Europe， including 1， 000 deaths， as well as 1， 000 cases in the US．
Summer Olympics delayed
On March 24， President of the International Olympic Committee（IOC） Thomas Bach announced the 2020 Summer Olympic Games， which were planned to be held in Tokyo， would be delayed until the following year in the interest of protecting public safety．
US hits over l million cases
On April 28， the US recorded officially over one million COVID﹣19 cases nationwide．This came just four days after it was announced that the virus had resulted in over 50， 000 deaths across the country．The virus spread rapidly across the country， as the first case had been recorded three months earlier．
根据短文内容，选择最佳答案．
（1）The events in the passage are all connected with ．
| A． |
Italy's lockdown |
| B． |
US cases |
| C． |
Olympic games |
| D． |
the coronavirus pandemic |
（2）In paragraph 2， the underlined word "lockdown" probably means ．
| A． |
封城 |
| B． |
控制 |
| C． |
关押 |
| D． |
锁定 |
（3）COVID﹣19 was officially announced as a pandemic because it ．
| A． |
caused the lockdowns |
| B． |
had a growing number of cases in the world |
| C． |
could result in death |
| D． |
spread quickly in Europe |
（4）2020 Summer Olympic Games in Tokyo will be delayed because ．
| A． |
people may not go during the pandemic |
| B． |
the cases in Asia increased quickly |
| C． |
it hasn't been well﹣prepared |
| D． |
it's necessary to protect public safety |
（5）It took for the number of COVID﹣19 cases in the US to reach over one milion．
| A． |
four days |
| B． |
twenty﹣eight days |
| C． |
three months |
| D． |
four months |
On March 10，2019，eight﹣year﹣old Tani won the New York Chess Championship （纽约象棋冠军赛）of his age group． But the boy， who was homeless at the time， began learning the game less than a year ago．
Tani and his family arrived in New York City from Africa in 2017． A church helped him enter the primary school， P．S.116． Here the gifted boy was first introduced to chess by a part﹣time teacher Makofsky， owner of a chess club． Interested in the game， the seven﹣year﹣old asked his mother to allow him to join the club． Not able to afford the chess classes， she emailed Makofsky． To her surprise and joy， Makofsky agreed that Tani could learn it for free．
Though the chess club helps， it's largely believed that Tani's success lies in his hard work． The boy practices the game for many hours a day on the floor with his board． Every Saturday， Tani goes to a free 3﹣hour class to improve his game skills．
Not surprisingly，Tani's story， first reported by The New York Times， has brought him great support from the American public． Soon after the young boy won the New York Championship， Makofsky began a GoFundMe activity for Tani and his family so that he could continue his chess journey． It raised ＄200，000 in just ten days， far more than they expected． And the money keeps coming． But the family donates （捐赠）most of the money to the church and to those poor families!
Tani has also received offers from three famous private schools in New York． However， the family have politely refused all of them and chosen to continue Tani's education at P．S.116．
The young boy's story also caught the eye of Bill Clinton，the 42nd US President． "Tani，you're an example of a winning spirit ﹣ in chess and in life． I'd love to meet you，" he said on his Facebook．
While excited about his new life，Tani is ready to meet great challenges （挑战）．He is busy preparing for the 2019 National Primary Championships． Winning the competition will bring the chess player closer to his dream of becoming the world's youngest chess grandmaster （大师）． The record has been kept for 17 years by the Russian chess player Karjakin， who won the title at the age of 12．
（1）Tani began to learn chess at the age of ．
A．seven
B．eight
C．nine
D．twelve
（2）Paragraph 3 is mainly about ．
A．where Tani practises chess
B．how hard Tani works at chess
C．what Tani's mother does for him
D．how much the chess club helps
（3）After winning the New York Championship， Tani ．
A．hoped to see Bill Clinton
B．went to a famous private school
C．became the richest boy in New York
D．got much support from the society
（4）The writer mentions the Russian chess player Karjakin to ．
A．call on young people to learn chess
B．introduce his great achievements in chess
C．show it's a big challenge for Tani to realize his dream
D．tell people Tani has been the world's best chess player
Antarctica （南极洲） is at the southern end of the Earth． It is the coldest， driest and windiest place on our planet． What would it be like to live and work there？
On Oct 15， 50 Chinese researchers took a ship named Xuelong 2 from Shenzhen to Antarctica． Xuelong 2 is the first icebreaker （破冰船） made in China． It took two years to build Xuelong 2． It is reported that Xuelong 2 is one of the world's best research icebreakers．
Chinese researchers have been to Antarctica 35 times． Because of its unusual environment， researchers from around the world have been going there to do study （研究） for many years． Some studies can only be done in Antarctica． For example， there is little air pollution there． This makes it easier for scientists to study the weather， atmosphere （大气） and stars．
The study of Antarctica's geology （地质） is also important． Rocks in Antarctica can tell us what the weather was like long time ago， and help us understand how the Earth has changed over time． There are also many wild animals， such as penguins （企鹅），seals （海豹） and birds． Scientists can learn how animals live in cold places by studying them．
Xie Zhouqing is a professor at the University of Science and Technology of China． He was part of China's 15th research trip to Antarctica． He said， "Life in Antarctica is not easy．It is tiring and sometimes dangerous， but it is still quite fun．" He also said，"I studied how penguins walk， what they eat， and why they move from one place to another． I was excited to see the cute animals playing around． I hope my studies can help protect them．"
（1）What can we know from the first three paragraphs？
A． Antarctica is at the northern end of the Earth．
B． There is plenty of air pollution in Antarctica．
C． Xuelong 2 is the first icebreaker made in China．
D． Chinese scientists have been to Antarctica 45 times．
（2）What does the underlined word "it" mean in the fifth paragraph？
A． Life in Antarctica．
B． Rocks in Antarctica．
C． Fun in Antarctica．
D． Danger in Antarctica．
（3）What can we infer （推断） from the passage？
A． The weather in Antarctica hasn't changed over time．
B． Xie Zhouqing mainly studied geology in Antarctica．
C． Chinese researchers have done many studies in Antarctica．
D． The study in Antarctica can't help protect penguins and seals．
（4）Where does the passage probably come from？
A． A storybook．
B． A cooking guide．
C． A film review．
D． A science magazine．
By﹣Anna Matteo
28 January，2019
A 3﹣year﹣old boy who was lost in the woods for two days is now safe at home with his family．But Casey Hathaway told his rescuers（救援者） that he was not alone in the rainy，freezing cold woods． He said he was with a friend﹣﹣a bear．
The child went missing on January 22 while playing with friends near his grandmother's house in North Carolina． When the other children returned but Casey did not， the family searched the area for almost an hour before calling the police．
Police formed a search team to look for the young boy in the nearby woods．But two days went by and ﹣﹣ no Casey．
Then on January 24，someone called the police saying he heard a child crying in the woods．Police followed up on the information and found Casey at about 9：30 that night． He was in good health．
Casey told the rescuers he had hung out with a black bear for two days， a bear he called his "friend"．
The police officer Chip Hughes spoke with reporters from several news agencies． He said Casey did not say how he could survive in the woods for two days in the cold， rainy weather．"However，the police officer said， "he did say he had a friend in the woods that was a bear with him．"
Hundreds of people helped in the search and rescue efforts， including some 600 volunteers，police and members of the army． Doctors at the medical center gave Casey some examination． He was then sent to his family on January 25．
His mother talked with reporters and thanked everyone who joined the search for her son．"We just want to tell everybody that we're very thankful that you took the time out to search for Casey， "said his mother．"He is up and talking． He's already asked to watch cartoon．
（1）Who stayed with Casey in the woods during the two days？
A．A bear．
B．The police．
C．His mother．
D．The volunteers．
（2）The underlined word "survive" in Paragraph 6 probably means " "．
A．give up
B．get lost
C．fall asleep
D．remain alive
（3）What is the correct order in which these happen？
a． Someone heard a child crying．
b． The family started to look for Casey．
c． Casey played with his friends．
d． The police found Casey was in good health．
A．b﹣c﹣a﹣d
B．b﹣c﹣d﹣a
C．c﹣b﹣a﹣d
D．c﹣b﹣d﹣a
（4）After Casey was sent back home， he was ．
A．scared
B．nervous
C．relaxed
D．surprised
In 1987 a small company named Huawei was started in Shenzhen.After more than 30 years of development，the company has now beaten Apple and become the world's second largest maker of smartphones.It has also become the world's supplier （供应者） of 5 G.In China and even in the world，Huawei is a wonder.Although it started producing mobile phones not many years ago，it has become one of the most famous phone companies.
But recently，Huawei faces some difficulties.The US government made a law to stop its sales in America.American officials said Huawei gave information that it collected to the Chinese government.At the same time，the US government planned to stop selling parts and services to Huawei.They believed that Huawei's business would be hurt this way.
"We have never received such a request from the Chinese government and we have never tried to get into other systems to collect information，" Ren Zhengfei，Huawei's president said. "The law would have little effect on our company.Huawei has enough ability to deal with the problems，" Ren added.
In an interview several years ago，Ren Zhengfei said， "I started Huawei with only £4000 at the beginning，but now it has become a 100 billion company.The experience was not as romantic as you imagine."
Facing the law of the US，Huawei is growing.Huawei's smartphone sales around the world rose 50 percent compared with a year earlier in the first three months of 2019.At the same time，sales from both Samsung and Apple fell.So far Huawei has grown into the world's largest telecommunication equipment supplier （供应商），selling in 170 countries.It may beat Samsung as the largest smartphone maker in the near future.
（1）How many kinds of smartphones are mentioned in total in this passage？
A.One.
B.Two.
C.Three.
D.Four.
（2）Which of the following sentences is TRUE according to the passage？
A.Huawei collected the information for the Chinese government.
B.Ren Zhengfei started Huawei with only £4000 in 1987.
C.Huawei has beaten Samsung，a South﹣Korea phone maker so far.
D.Huawei has developed its business smoothly.
（3）What does the underlined word "romantic" in Paragraph 4 mean in Chinese？
A.浪漫的.
B.现实的.
C.成功的.
D.麻烦的.
（4）The last paragraph mainly tells us .
A.Huawei has become one of the most famous phone companies.
B.Huawei has become the largest maker of smartphones in the world.
C.Huawei has got into some systems of the US.
D.Huawei is full of hope and must succeed in the future.
Amazing China is a 90﹣minute documentary about the development of China． Many people have watched it．We asked some students how they liked this movie． Here are their opinions．
▲The director Wei Tie made this successful movie． It shows that China has progressed rapidly in the past nearly 70 years．
﹣﹣Li Lin
▲This movie drew a picture of common people's great work． I'm proud of our country because all the Chinese try to achieve Chinese dream．
﹣﹣Xu Wei
▲In this documentary， we saw the longest sea﹣crossing bridge in the world， Hong Kong﹣Zhuhai﹣Macao Bridge． Now， China also has longer high﹣speed rail network （高铁网） than any other country．
﹣﹣Liu Yang
▲The film helped people to know China better． The stories in the movie touched my heart deeply． From then on， I decided to work harder than before．
﹣﹣Huang Lei
（1）What kind of movie is Amazing China？
（2）Who is the director of this movie？
（3）Why is Xu Wei proud of China？
（4）Which is the longest sea﹣crossing bridge in the world？
（5）Did Amazing China touch Huang Lei's heart？
I think there are several reasons that suggest developing robots is a waste of money．
In San Diego recently ＄ 325，000 was spent on inventing a robotic squirrel to do some scientific experiments． The research proved that squirrels are able to scare away snakes by wagging （摇动） their tails． Do you need a robotic squirrel to work this out？
What about AIBO，a robotic pet，developed in Japan？ In Japanese aibou means "buddy"． These pets have been developed at huge cost mainly to provide entertainment．They've been used in movies and music videos． Universities have used them for educational purposes．However， in 2006 the company stopped producing these robotic pets in order to save money． Was it worth a lot of money？
Then there's NAO， a robot which has been developed by a French company．Its main purpose is to make life easier for humans． It speaks 19 languages and has its own personality．It can tell children a story， help in the classroom or the home， or act as a companion to those people who need someone to be with．A fully developed one costs ﹩16，000． Is that value for money？ Who can afford it anyway？
There may be good reasons why it is worth developing robots， but so far I haven't thought of any．
（1）What does the underlined word "companion" in Paragraph 4 mean in Chinese？
A．公司
B．机构
C．对手
D．伙伴
（2）What is the true fact about the robots mentioned？
A． The robotic squirrel is needed by every scientist to do some research．
B． AIBO wasn't made any more because it only provided entertainment．
C． A fully developed NAO may tell kids stories in different languages．
D． All the three types of robots used to be produced at a very low cost．
（3）What does the writer think of developing robots？
A． It can help bring people a lot of fun．
B． It has advantages in many ways．
C． It may be useful but costs too much．
D．It is worth a great deal of money．
China has named the nation's first Mars rover（火星车）Zhu Rong.For all of us，Zhu Rong is a well﹣suited name.
In an ancient Chinese story，Zhu Rong had the face of a man and the body of an animal.He rode on two dragons.When he had a big fight with Gong Gong，the god of water，Zhu Rong won.But after the fight，the human world came into complete darkness.Then he brought fire from heaven（天国）to the world.
"Zhu Rong is regarded as the earliest god of fire in traditional Chinese culture，" a space official said. "The first Mars rover was named Zhu Rong.The name symbolizes（象征）light and hope for space exploration（探索）in our country，and means to guide humans to continue exploration."
After leaving the earth last summer，Zhu Rong circled Mars for several months and landed on it in May.In recent years，our country has sent up the world's first quantum satellite（量子卫星），and Chang'e﹣4 has made a soft landing on the moon.We have made great progress in space technology and will soon start building our own space station.
（1）What Zhu Rong brought from heaven to the world was .
| A． |
fire |
| B． |
wars |
| C． |
water |
| D． |
animals |
（2）For China's space exploration，the name Zhu Rong symbolizes .
| A． |
a big fight |
| B． |
complete darkness |
| C． |
light and hope |
| D． |
Chinese culture |
（3）The underlined word "it" in the last paragraph refers to" "
| A． |
the earth |
| B． |
Mars |
| C． |
the moon |
| D． |
the sun |
（4）According to the passage，we can infer that .
| A． |
Zhu Rong is a bad person in an ancient Chinese story |
| B． |
China has made great progress in space technology |
| C． |
the writer is proud of China's space technology |
| D． |
the official doesn't like the name Zhu Rong |
The first emperor of China，Qin Shihuang，completed a huge number of projects during his rule.Between 221 and 210 B.C.，he started the building of the Great Wall.The emperor also ordered the building of a huge army of life﹣sized terracotta soldiers（士兵）.These，he hoped，would protect his tomb after his death.
Lost in Time
The soldiers in Xi'an's terracotta museum are today light brown，but they weren't always.They began as an army of red，blue，yellow，green，white，and purple.Sadly，most of the colors did not last to the present day.After being exposed（暴露）to air during digging，the coating under the paint began to fall off.The paint disappeared in less time than it takes to boil an egg，taking away with it important pieces of history.
New Technology
Now new technology is starting to show the army's true colors.Archeologists（考古学家）have recently discovered an area with more than a hundred soldiers.Many of these still have their painted features，including black hair，pink faces，and black or brown eyes.Chinese and German researchers have developed a chemical liquid（液体）to help save the soldiers' colors.After finding a soldier or another art piece，archeologists put the liquid on it. They then cover it in plastic.
Back to Life
Archeologists are also finding colors in the dirt around the soldiers.It's important not to do anything with the dirt，so the colors won't be lost. "We are treating the dirt as an art piece， "says Rong Bo，the museum's leading archeologist.The next challenge，says Rong Bo，is to find a way to use the colors onto the army﹣again.Once that happens，artists can bring Emperor Qin's army back to its full，bright colors.
（1）What is the passage mainly about？
A.The death of Emperor Qin Shihuang.
B.How the terracotta army was colored.
C.The true colors of the terracotta soldiers.
D.How the soldiers lived during Qin Dynasty.
（2）What does the underlined word "They" in the passage refer to？
A.Archeologists.
B.Artists.
C.Researchers.
D.Soldier.
（3）Which statement would Rong Bo probably agree？
A.The soldiers should stay in their present，brown color.
B.People should try to bring back the army's bright colors.
C.Archeologists can only guess at the soldiers' true colors.
D.Artists should be able to paint the soldiers in colors they want.
Have you ever imagined the life in space？The following will show you the astronauts' daily life.
• Eating in space
If you go camping for more than a week with some friends，you will make sure you have plenty of foods and keep them properly.At the end of your camping trip，you would deal with your rubbish properly before the ride home.
Astronauts almost do the same thing when they go to space.Preparation changes with the food type.Some foods can be eaten in their natural forms，such as chocolate cakes and fruits.Other foods require adding water，such as cheese.Of course，an oven is provided at the space station to heat the food.But there are no fridges，so space food must be kept properly.
• Sleeping in space
After a long day at work，nothing is better than a good night's sleep!Just like on the earth，in space astronauts go to bed at a certain time，then get up and prepare for work again.When going to sleep，they have to attachthemselves，so they don't float （漂浮） around or hit their bodies against something.They usually use sleeping bags located in small crew cabins （乘员舱）.Each crew cabin is just big enough for one person.Generally，astronauts have an eight﹣hour sleep each day when they finish their task.
• Doing sports in space
Exercise is an important part of every astronaut's daily life to prevent muscle loss （肌肉萎缩）.Usually，astronauts exercise two hours every day.Lifting 200 pounds on the earth may be a lot of work.But lifting that same object in space would be much easier.That means the things for exercise need to be specially designed，so astronauts can receive the exercise needed.
Living in space is not just all work and no play.Astronauts have fun，too.They like to look out the window and play with their food.Fun plays an important role in the quality of their life.
（1）The writer starts to explain eating in space by .
| A． |
telling a story |
| B． |
asking a question |
| C． |
giving an example |
| D． |
comparing two facts |
（2）What does the underlined word " attach" in Paragraph 4 mean？
| A． |
Tie. |
| B． |
Hide. |
| C． |
Catch. |
| D． |
Carry. |
（3）It is much easier for people in space than on the earth.
| A． |
to fall asleep |
| B． |
to lift heavy things |
| C． |
to prevent muscle loss |
| D． |
to eat cold food |
（4）In which part of a newspaper can we read the passage？
A.CULTURE.
B.SOCIETY.
C.SCIENCE.
D.HISTORY.
The Brightest Star in the Sky
Yuan Longping is one of the most famous scientists.He regards himself as a farmer because he does his research in the fields.In fact，his sunburnt face and arms and his slim，strong body are just like those of millions of farmers.Dr.Yuan Longping grows what is called super hybrid （杂交性的） rice.In 1974，he became the first agricultural （农业的） pioneer in the word to grow rice hat has a high output（产量）.This special rice makes it possible to produce one﹣third more of the crop in the same fields.Now more than 60% of the rice produced in China each year is from the hybrid rice strain （品种，种类）.He was born in Beijing in 1930.Since he graduated from Southwest Agricultural College in 1953，finding ways to grow more rice has been his life goal.He searched for a way to increase rice harvests without expanding （扩大，增加） the area of the fields.
In a recent research，these increased harvests mean that 22% of the world's people are fed from just 7% of the farmland in China.India，Vietnam and many other less developed countries have planted super hybrid rice to increase their rice harvests.
Unluckily，he died on May 22，2021.Though he was ill in bed，he still cared about his rice in the fields.He always said，"A man is just like a seed.Please be a good seed." Yuan works for the people not only in China but also around the world.He has become a hero and is remembered in everyone's heart forever.He is called "the brightest star in the sky" by his students.
（1）What does Yuan Longping do？
| A． |
A farmer. |
| B． |
A pioneer. |
| C． |
A scientist. |
| D． |
A hero. |
（2）Why does Yuan Longping call himself a farmer？
| A． |
Because of his sunburnt face and arms. |
| B． |
Because of his working place in the fields. |
| C． |
Because of his slim and strong body. |
| D． |
Because of his research of super hybrid wheat. |
（3）Yuan Longping was years old when he became the first agricultural pioneer in the world.
| A． |
68 |
| B． |
91 |
| C． |
44 |
| D． |
89 |
（4）According to the passage，which of the following is TRUE？
| A． |
This special rice can produce about one third more than usual ones in the same fields. |
| B． |
60% of the rice output is from common strains. |
| C． |
7% of the world's people are fed by China. |
| D． |
The production from 22% of the farmland can't satisfy the need of China. |
（5）What can we learn from him？
| A． |
Practice makes perfect. |
| B． |
When in Rome，do as the Romans do. |
| C． |
The early bird catches the worm. |
| D． |
Where there is a will，there is a way. |
The Internet is shaping our lives． We already have online shopping services and mobile payment． However， this is just a start． The worlds leading tech companies are planning to build smarter online communities． （1） It was held in Wuzhen， Zhejiang last year． The development of artificial intelligence（AI，人工智能） was a hot topic at the conference（会议）． If a machine can learn and solve problems as humans do， it can be called AI．
The company Alibaba uses AI technology in its unmanned supermarket in Wuzhen． There is no salesperson in the supermarket， just a tablet on a desk that says"please smile"． （2） The bigger your smile is， the more discounts（折扣） you will get． Payment is done automatically（自动地） through your Alipay（支付宝）account． When you first enter the supermarket， the supermarket's AI recognizes your face and your account．
There is also AI that can read lips． （3） It recognizes your mouth，s movements and turns them into voices or text messages． This could be very useful when you are trying to talk to someone on your phone in a noisy place． Police could also use the technology to help them find criminal suspects by lip﹣reading recordings from video cameras．
（4） Microsoft's chatbot Xiaolce can not only provide useful information， but also chat with people like a real friend． Xiaolce has a WeChat account． After following the account， users can start talking with her． （5） She keeps improving herself by talking with users．
These technologies are being put into wider use． We may see a smarter world and better lives in the near future．
A． She knows when to comfort you or tell jokes．
B． They discussed this at the World Internet Conference．
C． Sougou brought its lip﹣reading system to the conference．
D． If you smile， it will give you a special discount for your goods．
E． Another type of AI focuses on understanding human emotions．
Are you short﹣sighted？ If you are， your parents might have tried to do something to fix it， such as having you get an eye massage（按摩）， take medicine or even get surgery（手术）． People who offer these services or products often say that they can reduce or even cure short sight．
However， you will no longer see advertisements like this before long． The government has issued a notice to ban（禁止） businesses from using words like "recovery" or "short sight cure" in
their advertisements．
The notice says that short sight cannot be completely cured with current medical technology． Therefore， these advertisements could mislead children and their parents．
Young people can prevent and control short sight by spending more time outside and less time in front of books or computers． People who have sight problems should first go to a hospital and let a doctor decide what to do．
More than 450 million Chinese have suffered from short sight since June 2018． Short sight rates are around 30 percent for primary school students， 60 percent for junior high school students and 80 percent for senior high school students． This is likely because students spend a lot of time reading books and using electronic devices．
To reduce short sight among young people， the government made a new plan last August． The plan is designed to limit the amount of time children spend playing video games， as well as limit the production of new video games．
（1）Some people say that they can cure short sight to ．
A． show off their high﹣leveled skills
B． sell more products and services
C． share their medical technology
D． prove that eye massages are useful
（2）Advertisements with the word " " will be banned by the government．
A． recovery
B．eyesight
C． short sight
D． surgery
（3）If you have a sight problem， you should first．
A． get surgery
B． get an eye massage
C． take some medicine
D． ask a doctor for advice
（4）According to this passage， which group has the highest short sight rate？
A． Primary school students．
B． Junior high school students．
C．Senior high school students．
D． College students．
（5）From the last two paragraphs， we can know that ．
A． students should be stopped from using mobile phones
B． students in lower grades are more likely to get short sight
C． production of new video games will be limited
D．a law was made to protect the eyesight of people
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