In 1990 a report was published about what the earth might be like 20 years from then on. The report was a result of a three-year 36 .
According to the report, the picture of the earth in the year 2010 is not a 37 one. The world will be more 38 because the population will continue to grow . The population could be 39 6 300 million, almost 2 115 million more than in 1985 .More people would move into cities, especially cities in 40 countries . Cities like Cairo and Jakarta probably would 41 have 15 million by then .
Food production will 42 , but not enough to feed all the people . Farmers will grow 90% more food than they did in 1985, 43 most of the increase would be in countries that
44 produce enough food for their people . Little increase is 45 in South Asia, Africa and the Middle East . Poor farming ways are 46 large areas of crop land, changing farms into deserts . More farmland is 47 as cities become larger and more houses are built . 48 will get worse as industrial countries burn more coal and oil .Many of the world’s 49 could disappear as more and more trees are cut down . Energy will continue to be a serious problem . The experts say their picture of the earth for the year 2010 50 . They only carried out the situation that 51 today . By changing the situation, by 52 the problems, the picture can be changed . There is 53 time for the nations of the world to work 54 a plan of action . But they warned that 55 too long to make decisions would greatly reduce the chances of success .
A．learning B．project C．notice D．study
A．pleased B．pleasant C．safe D．blue
A．dangerous B．beautiful C．crowded D．terrible
A．no more than B．as many as C．as much as D．as large as
A．developing B．developed C．big D．mountainous
A．none B．each C．all D．neither
A．insist B．reduce C．increase D．continue
A．so B．but C．or D．however
A．already B．hardly C．partly D．never
A．wanted B．lacked C．founded D．expected
A．destroying B．protecting C．disturbing D．interrupting
A．saved B．lost C．discovered D．used
A．Air pollution B．Water pollution C．Some diseases D．All farmland
A．Animals B．plants C．forests D．people
A．must be true B．will come true C．can’t be true D．may be wrong
A．settling B．working at C．answering D．dealing
A．no B．still C．less D．plenty of
A．about B．in C．out D．for
A．working B．suggesting C．spending D．waiting
What would you think if someone suggested knocking down St Paul’s Cathedral to widen the road? Or pulling down Big Ben to make way for a car park? It would be ridiculous, right? But when it comes to devastation (毁灭) of the natural world, we aren’t so easily shocked. But we should be…or we’ll be in a lot of trouble.
Nature is shrinking by the day. Ancient forests are destroyed. Wetlands are becoming dry. Woodland is disappearing, and all in the name of progress. This is bad in itself, but it’s devastating for biodiversity.
Biodiversity refers to the variety of plants, animals and other living things that are all interconnected. The ecological services provided by biodiversity are vital to everyday life. The air we breathe is a product of photosynthesis (光合作用) by green plants. Insects, worms and bacteria break down waste and make soils rich. And tiny organisms clean the water in rivers and sea. In fact, all life on the earth exists thanks to the benefits of biodiversity. More than 90 percent of the calories consumed by people worldwide are produced from 80 plant species. And 30 percent of medicines are developed from plants and animals. Maintaining a wide diversity of species in each ecosystem is necessary to preserve all living things.
The loss of biodiversity could be devastating. “It is wrong to think that biodiversity can be reduced indefinitely without threatening humans,” said Harvard University biologist Edward O. Wilson, known as the “father of biodiversity”. He warned, “We are about to reach a critical point beyond which biodiversity loss will become irreversible (不可挽回的).”
But what can we do? The present problem is that the concept of biodiversity is so vague (含糊的). People might care about giant pandas, but it is much harder to excite them about the fate of tiny sea creatures which are being boiled to death in the cooling systems of power stations along coastlines. The Guardian newspaper is trying to help. It has launched the Biodiversity 100 campaign to try to convince governments around the world to take action to deal with the widespread concerns about biodiversity. This includes persuading the UK government to create a series of marine reserves to reserve the decrease in the sea-life caused by industrial fishing, stopping fishing sharks by the Japanese fishermen and banning the killing of dingoes (wild dogs) in Australia, among many other things.
There is a lot to do. And we’d better act quickly if we don’t want to end up with a planet that can’t sustain life!The writer thinks it ________ to pull down Big Ben to make way for a car park.
| A．unreasonable | B．necessary | C．difficult | D．reasonable |
The underlined sentence “Nature is shrinking by the day.” means that ________.
| A．nature is badly polluted by humans |
| B．species are becoming fewer and fewer day by day |
| C．rainforests are being cut down every day |
| D．nature is full of mysteries |
Edward O. Wilson thinks that ________.
| A．it doesn’t matter to reduce biodiversity |
| B．people have done enough to preserve biodiversity |
| C．the situation of biodiversity is very serious |
| D．biodiversity loss has become irreversible |
When it comes to biodiversity, the present problem is that ________.
| A．people might not clearly know what is biodiversity and what should be protected |
| B．people are not aware that giant pandas are endangered |
| C．people don’t realize that biodiversity is vital to everyday life |
| D．people hunt sea creatures for food |
What does the underlined word “It” in paragraph 5 refer to?
| A．The UK government. | B．The concept of biodiversity. |
| C．The action to deal with the problem. | D．The Guardian newspaper. |
The Internet has _______(16) effects on our lives.
The first is its value for people who are looking for information. When people are _____________(17)information ,from weather forecasts to __________(18)research, the Internet is now the first place that many people ___________(19).With the ___________(20) of a button or the click of a mouse , a student can _______________(21)knowledge from the information held in the largest libraries and museums in the world .
Another truly wonderful __________(22)of the Internet is the way people use it to build social ties. One of the greatest ________(23)of Internet friendships is that they are ________________(24)common interests, rather than appearance, age or popularity. Young people from different _________(25)and different countries can form lifelong friendships.
The Internet also has its negative effects on our lives.
The ___________(26) is that it is difficult to _________(27) whether the information is true and accurate. The __________(28) of false information on the Internet becomes more of a problem every day . This is very __________(29)because people can write anything they want,and we cannot always tell if the information is true or not .
Another disadvantage of the Internet is that it is affecting people’s ________(30)lives. As the Internet has gained ________(31),there has been a change in the way people spend their time. Now ,________(32)spending time together in the evenings, some families spend their time ______(33)because one or more members are using the computer. ________(34) some young people spend so much time ______(35)computer games and using the Internet that they have become addicted to computer games.
A．negative B．positive C．creative D．aggressive
A．in need of B．in face of C．in charge of D．in honour of
A．scientific B．biological C．academic D．techonological
A．turn to B．point to C．refer to D．leader to
A．catch B．order C．give D．touch
A．acquire B．have C．require D．win
A．field B．area C．aspect D．way
A．interest B．benefits C．profits D．kinds
A．concentrated on B．devoted to C．abandoned to D．based on
A．backgrounds B．families C．societies D．groups
A．advantages B． disadvantages C．shortages D．shortcomings
A．guess B．judge C． suppose D．think
A．amount B．quantities C． numbers D．total
A．handsome B．troublesome C．quarrelsome D．fearsome
A．private B．public C．state D．personal
A．permission B．defence C．popularity D．occupation
A．rather than B．instead of C．in exchange for D．in spite of
A．aside B．apart C．alone D．abroad
A．In fact B．In case C．In turn D．In all
A．play B．playing C．to play D．played
A farmer found a wounded eagle (鹰) in his field. He was so 26 that he took it home and cleaned its wounds. After that he placed it 27 in the yard, in the hope that it 28 recover soon.
Strangely enough, the eagle soon got used to the 29 of all the chickens in the yard. It learned to 30 from side to side like chickens, and eat happily from a trough (食槽). For many years, the eagle 31 his new life on the farm.
Then one day, one of the farmer’s friends pointed to the playing 32 and asked, “ 33 is that eagle acting like a chicken?” The farmer told him what had 34 , and the friend felt quite 35 .
“I can’t believe that!” said the friend. “It should fly in the 36 , not live here!” He picked up the eagle, and 37 it into the air. The eagle was 38 , and cried loudly. Then it just fell down on the ground.
That night, the friend could 39 sleep as he remembered the chicken-like eagle. The next morning, he headed back to the farm for another 40 . This time he carried the eagle to the 41 of a nearby mountain.
When he stood at the highest place of the mountain, he looked into its eyes and shouted, “Don’t you 42 ? You weren’t made to live like a chicken!” As he 43 the eagle up, he made sure it was facing into the bright 44 of the rising sun. Then he 45 tossed (抛) the bird into the sky. This time the eagle opened his wings, and disappeared into the clouds.
A．polite B．brave C．kind D．proud
A．forward B．outside C．inside D．backward
A．would B．should C．must D．need
A．food B．sounds C．water D．habits
A．walk B．sleep C．talk D．drink
A．wasted B．forgot C．lost D．enjoyed
A．chicken B．eagle C．farmer D．plane
A．When B．How C．Why D．What
A．suffered B．experienced C．happened D．found
A．pleased B．surprised C．worried D．satisfied
A．sky B．sea C．land D．lake
A．pulled B．moved C．took D．threw
A．afraid B．interested C．excited D．angry
A．hardly B．exactly C．actually D．finally
A．drink B．meeting C．rest D．try
A．top B．foot C．center D．side
A．believe B．cry C．understand D．work
A．held B．put C．filled D．tied
A．sight B．light C．space D．shape
A．easily B．softly C．quickly D．powerfully
It is interesting how NASA(美国航空航天管理局)chose their astronauts for landing them on the moon. They chose men 26 the age of twenty and thirty-five. There were about fifty of them, Many were 27 air pilots. 28 were scientists with two or three degrees. NASA telephoned each man they were going to choose; told him the plans and the 29 they might get in. They then asked him if he was willing to be trained as an astronaut. “How could any man 30 such an exciting job?” One of them said, “Dangerous? Of course. It’s dangerous 31 most exciting”
The health and physical condition of 32 was, of course, very necessary. 33 those in very good health and physical condition were chosen.
While being trained to be astronauts. They went through many 34 . They studied the star and the moon, and they also studied geology, the science of rocks. This was necessary 35 astronauts would have to look for rocks on the moon. They would try to find rocks which might help to tell the 36 of the moon. They were all 37 to fly in helicopters （直升飞机）。These helicopters landed 38 down to give them some experience of the way the spaceship would 39 land on the moon , They were also taught the 40 facts about the conditions in space. They learnt all the technical details of the spaceships and rockets. They visited the scientists and engineers who 41 them. They visited the factories where they were 42. They learnt how every 43 of a space-ship and its instruments work. They also learnt every detail of ground-control 44 .
In a word, to be chosen as an astronaut. One must be in good health, 45 in science and good at piloting.
A．at B．between C．of D．on
A．experienced B．old C．trained D．young
A．None B．Few C．Others D．They
A．dangers B．sadness C．hardship D．troubles
A．accept B．receive C．offer D．refuse
A．but B．if C．though D．however
A．the scientists B．men C．pilots D．Young people
A．As B．Only C．If D．Or
A．jobs B．places C．courses D．ways
A．for B．because C．since D．So that
A．story B．Background C．Age D．name
A．shown B．trained C．told D．let
A．straight B．straightly C．indirectly D．directly
A．possibly B．likely C．actually D．really
A．not known B．well-known C．unknown D．known
A．drew B．produced C．designed D．made
A．repaired B．built C．developed D．fixed
A．part B．movement C．machine D．body
A．house B．stop C．system D．station
A．well-done B．well-fed C．well- kept D．well-informed
The heaviest snow in a hundred years hit the south of China. It snowed __36___for half a month. Many people were __37___in railway stations, bus stations and airports. People did everything they could to fight the __38___; nobody was killed from cold and _39____. Gradually ,the trapped people all went back home_40___. While fighting the snow, people ___41__their animal friends until a moving story of a swallow(燕子) couple appeared on the Internet.
The couple hadn’t eaten anything for several days __42___the snow. They tried to fly into people’s home to warm themselves, but every house was ___43___tightly(紧紧地). They got to a side of a balcony ( 阳台 ) where wind couldn’t reach. They jumped and flapped (拍打) their wings(翅膀) to _44___the attention of the people inside the house, who were __45____their own things. The wife’s body was __46___. She couldn’t move any longer. The husband came near and __47__her with his wings. The husband lost his heat soon because of his opened wings.
The next morning, the housemaster went to the balcony to __48__ his flowers and saw a dead swallow outside. __49__ it, he found they were two embracing（拥抱） together. Thinking of the __50___the snow had brought to people, he was moved to tears . He took them in for giving them some _51___they couldn’t feel any longer. He found a small box, __52__it with some hay （干草）and lay the couple in . He _53__them in the garden of the community(社区).
In my hometown in the countryside, a swallow family live in the roof of my house . They __54__every spring to have babies. Then in autumn, when babies have __55___, they fly to the south, I wonder if they will come back this spring as they did.
A．beautifully B．directly C．gently D．continuously
A．forbidden B．rescued C．trapped D．covered
A．disaster B．war C．campaign D．disease
A．anger B．heat C．hunger D．poverty
A．sadly B．safely C．nervously D．curiously
A．treasured B．invited C．accepted D．forgot
A．because of B．in case of C．in spite of D．instead of
A．controlled B．fixed C．, stretched D．closed
A．admit B．attract C．turn D．escape
A．busy with B．born with C．good for D．famous for
A．burnt B．watched C．frozen D．found
A．supplied B．wrapped C．folded D．sorted
A．buy B．send C．sell D．check
A．Feeding B．Leaving C．Touching D．Greeting
A．hardship B．childhood C．cooperation D．lesson
A．clothes B．warmness C．flowers D．tension
A．made B．played C．associated D．filled
A．buried B．showed C．fastened D．enjoyed
A．put away B．come back C．fly away D．hold back
A．dropped out B．died out C．grown up D．stood up
Water costs money．In some places water is hard 31 ．What 32 when a town has these problems？A small town in California found a happy 33 ．
Very 34 rain ever fell there．The town had no water35 ．The water it used was 36 from a river 300 miles away．As more people 37 live in the town 38 water was needed．Now water 39 to be brought in from 600 miles away．All these cost 40 money．
The town 41 a plan．It found 42 to clean its “dirty” water．Once the cleaned water was reused 43 many ways．Five 44 lakes were built．Here people could swim and fish and go 45 ．They 46 have picnics in their new parks．Farmers had more water 47 their crops．New factories can be built，now that they have the promise of 48 ．
In most places，water is used and thrown 49．The town that saved 50 water has saved the town！
A．supplying B．getting C．to get D．to supply
A．little B．a little C．few D．a few
A．fetch B．take C．brought in D．guided
A．come to B．came to C．coming to D．came for
A．many B．plenty of C．more D．many more
A．has B．had C．must D．needed
A．many B．a few C．a great many D．a lot of
A．put B．made C．supply D．noticed
A．a way B．ways C．an answer D．a key
A．for B．by C．at D．in
A．man-making B．man-make C．man-made D．man made
A．boating B．to boat C．to boating D．on boating
A．must B．could C．needed D．had to
A．as B．with C．for D．to
A．water enough B．enough water C．crops enough D．enough crops
A．off B．of C．away D．out of
A．it’s B．its C．one’s D．his
Don’t shoot butterflies with guns.
Can you 36 someone running after a butterfly with a gun in his hands? Won’t such stupidity make you burst out laughing? But wait. Stop and consider how often you might have done something 37 .
A hen, Henny-Penny, lived in a forest with many other animals and birds. One fine, sunny morning, she was busy looking for 38 in the ground. Suddenly she let out a frightened cackle (咯咯叫) with wings flapping 39 . A dry leaf had fallen down on her, and she went 40 at whoever she met, “Run, run for your lives; the sky is falling.” The other creatures stopped whatever they were doing. Some ran behind Henny-Penny, screaming warnings with her, while others 41 the unfounded story that the sky was falling.
We all have 42 people like this hen. The rest of us are like the other foolish creatures who didn’t stop to verify (证实) the 43 for themselves. They shoot butterflies with guns. They just will not think for themselves. Why don’t people think for themselves? Often because of laziness, or because they don’t want to be 44 for their way of thinking.
Walking through life 45 is more dangerous than crossing a busy road with eyes closed. Our thoughts should lead us towards the light of wisdom and sense. Our thinking should be high, 46 us to the ranks of the sensible. We have been blessed with reasoning, sensitive minds. Let us make use of them and be 47 of our own minds. Don’t let your mind be enslaved by someone else. Stop, think and then go ahead.
.
A．suggest B．imagine C．recall D．prevent
A．different B．extraordinary C．unusual D．similar
A．trees B．worms C．nests D．leaves
A．in delight B．in cheer C．in fear D．in amazement
A．screaming B．staring C．praising D．criticizing
A．recite B．edit C．spread D．print
A．come across B．searched for C．looked after D．cared about
A．impact B．process C．advantage D．truth
A．desperate B．good C．regretful D．responsible
A．speechlessly B．hopelessly C．mindlessly D．homelessly
A．declining B．raising C．wiping D．smoothing
A．masters B．slaves C．authors D．employees
In the past, man did not have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be____36____ .
Today things are___37_____, the world has become too___38____ . We are using up our natural resources too quickly, and at the same time we are___39____ our environment with dangerous chemicals. If we continue to do this, human life on the earth ___40____survive.
Everyone___41_____ today that if too many fish are taken from the sea, there will soon be none left. Yet, with modern fishing__42_____ , more and more fish are caught. We know that if too many trees are cut down, ___43____will disappear and nothing will grow on the land. Yet, we ___44_____to use bigger and more powerful machines to __45____more and more trees.
We realize that if rivers are polluted with waste products from factories, we will die.___46_____, in most countries wastes are ___47______put into rivers or into the sea, and there are _48_____laws to stop this.
We know, too, that if the___49____ of the world continues to rise at the present rate, in a few years, there will not be enough___50_____. What can we do to solve these problems ?
It we eat more vegetables and less___51____, there will be more food available for everyone. Land that is used to grow crops __52_____five times more people than land where animals are kept.
Our natural resources will _53_____longer if we learn to recycle them. The world population will not rise so quickly if people use modern methods of birth__54_______ .
Finally, if we educate people to think about the problems, we shall have a better and clearer ___55____in the future.
A．beautiful B．unlimited C．rare D．valuable
A．common B．the same C．changeable D．different
A．crowded B．small C．dirty D．busy
A．protecting B．saving C．polluting D．fighting
A．may not B．will not C．shall not D．could not
A．wonders B．realizes C．consider D．discovers
A．poles B．boats C．methods D．ideas
A．mountains B．the sea C．trees D．forests
A．continue B．have C．ought D．will go on
A．grow B．plant C．save D．cut down
A．Thus B．However C．Generally speaking D．Therefore
A．still B．even C．also D．certainly
A．too many B．a few C．some D．few
A．production B．pollution C．population D．revolution
A．houses B．vegetables C．food D．lives
A．fruit B．meat C．fish D．grain
A．feeds B．increases C．supplies D．helps
A．use B．stay C．keep D．last
A．control B．born C．plan D．reward
A．nature B．sea C．planet D．Forest
When we talk about a bad man, we like to call him a “wolf”. But is it really true that the wolf stands for devil and ugliness？
Have you read the book “The Wolf Totem” by a famous writer Jiang Rong, which tells the story of the relationship between wolves and human beings? Have you ever 41 the wolves' world? If you had, you would 42 the wolves. In the book, wolves are heroes on the large grassland. They know more about 43 than humans. They can attack lambs without disturbing their mothers. They also know how to 44 full use of the shape of land to 45 sheep. I believe that if wolves were humans, they would be 46 experts good at fighting.
The wolf is a kind of special creature that can deeply understand 47 .Each wolf serves its group with its heart and soul. A 48 wolf has little power, but a pack of wolves 49 nothing. All the wolves obey the rules. 50 they are defeated, they run away together. It is their teamwork 51 makes wolves powerful.
The wolves also have great self respect and won't 52 to anyone. The writer, who wrote the book “The Wolf Totem”, 53 stole a one-month-old baby wolf and raised it very carefully. To his 54 , he found the little wolf still wanted to go back with 55 wolves. He bit through the iron chain that limited him. The wolf was 56 and he never gave in, fighting 57 his death. The little wolf died as a glorious fighter.
I was shocked by this kind of 58 wolves are one of the most respected creatures on the earth. I want everyone to look at wolves in a 59 way. They are our teachers. They show us how to survive and 60 in this not simple but dangerous world. Please honor the wolves, please honor all these heroes of nature!
A．thought about B．walked into C．talked about D．cared for
A．hunt B．admire C．draw D．watch
A．space B．spot C．food D．survival
A．get B．take C．have D．make
A．fight B．avoid C．trap D．discover
A．special B．imaginative C．outstanding D．creative
A．operation B．teamwork C．lifestyle D．control
A．single B．brave C．lonely D．fair
A．fight B．struggle C．fear D．fail
A．As for B．As though C．Even so D．Even if
A．what B．he C．that D．one
A．turn in B．give in C．take in D．break in
A．once B．just C．soon D．only
A．satisfaction B．disappointment C．pleasure D．sorrow
A．rest B．others C．another D．the other
A．proud B．satisfied C．willing D．eager
A．until B．although C．before D．unless
A．selflessness B．self-confidence C．self-respect D．self-protection
A．curious B．different C．strange D．humorous
A．walk B．hand C．get D．succeed
Sea turtles are found in all warm waters throughout the world. Sea turtles are the___36____ of the turtles. The largest kind of sea turtle can grow as long as eight feet and ___37___ 1,500 pounds. Even the smallest kind, Kemp’s-Ridley, can ___38___ to 28 inches long and weigh almost 100 pounds. Many other turtles are small enough to___39___ in your hand. It is difficult to find population numbers for sea turtles because they do not___40____ shore once they hatch and reach the ocean, which makes it hard to ___41___ them. Sea turtles___42___ in the water because they are safer there. They cannot___43___ their heads and feet into their shells like other turtles can. Sea turtles cannot hide inside their shells __44___ other animals that want to eat them. They need to move quickly to stay safe.
When the weather ___45___ warm, sea turtles leave the ocean to___46___ their eggs on the beach. This is the only time they will ever leave the water. Most___47____ turtles spend part of the time in water___48___ part of the time on land. It is easy to understand___49____ sea turtles stay in the water. Their___50___ to swim is greater than their ability to walk. Their heavy bodies and unusual feet make it hard for them to ___51___ on land. They are better___52___ for life in the water. They are well suited for life in the sea because of__53___ their bodies are made.
The way their feet are made helps sea turtles swim very quickly. Their feet look like long __54___. When they swim, they flap their feet like a bird flaps its wings. This ___55___ way of swimming benefits sea turtles. It allows them to escape from their enemies.
A． dwarfs B． giants C． mammals D． ancestors
A． measure B． weigh C． sell D． sound
A． grow up B． bring up C． take up D． go up
A． suit B． fit C． match D． seize
A． go to B． turn to C． back to D． return to
A．keep up with B． keep track of C． keep in touchwith D． keep to
A． swim B． hide C． sleep D． stay
A． push B． draw C． drag D． pull
A． away B． from C． for D． to
A． becomes B． turns C． changes D． leads
A． lay B． lie C． laid D． lain
A． the other B． another C． other D． others’
A． but B． and C． or D． so
A． when B． where C． why D． as
A． technique B． talent C． ability D． opportunity
A． walk B． travel C． wander D． play
A． adopted B． adapted C． adequate D． admitted
A． the way B． the manner C． the method D． the shape
A． paddles B． sticks C． wings D． tails
A． abnormal B． unusual C． ordinary D． unbelievable
Tom grows the nicest vegetables and fruits and the most beautiful flowers in the village. Plants grow in Tom’s garden all through the __1__ and they are much __2__.
Tom cuts some flowers for his sitting room table, eats some fruits and vegetables, but he __3__ most of them in the market. His vegetables, fruit and flowers are so __4__ and beautiful that they sold much more __5__ in the market than those of other villagers.
How does Tom grow these beautiful things? He is so __6__ that he just sits under his orange tree with his radio.
He __7__ the music all day.
That is quite true. Tom __8__ things in spring, summer, autumn and winter. After that he sits with his radio. And everything __9__. It is the music that does the work. Tom knows more clearly that music makes the biggest vegetables and the most beautiful flowers. Plants love __10__ as much as people.
A．week B．month C．season D．year
A．better B．worse C．less D．later
A．buys B．sells C．borrows D．lends
A．dear B．bad C．big D．small
A．politely B．quickly C．slowly D．carefully
A．angry B．busy C．tired D．lazy
A．listens to B．hears C．watches D．speaks
A．fills B．plants C．throws D．makes
A．does B．moves C．grows D．plays
A．work B．rain C．stories D．music
The Internet has opened up a whole new online world for us to meet, chat and go where we’ve never been before.
But just as in face to face communication, there are some rules of behavior that should be followed when on line. 71 Imagine how you’d feel if you were in the other person’s shoes.
For anything you’re about to send: ask yourself, “Would I say this to the person’s face?” if the answer is no, rewrite and reread. 72
If someone in the chat room is rude to you, your instinct (本能) is to fire back in the same manner. But try not to do so. 73 If it was caused by a disagreement with another member, try to fix the situation by politely discussing it. Remember to respect the beliefs and opinions of others in the chat room.
74 Offer advice when asked by newcomers, as they may not be sure what to do or how to communicate. When someone makes a mistake, whether it’s a stupid question or an unnecessarily long answer, be kind about it. If it’s a small mistake, you may not need to say anything. Even if you feel strongly about it, think twice before saying anything. Having good manners yourself doesn’t give you license to correct everyone else. 75 At the same time, if you find you are wrong, be sure to correct yourself and apologize to those that you have offended.
It is not polite to ask others personal questions such as their age, sex and marital status. Unless you know the person very well, and you are both comfortable with sharing personal information, don’t ask such questions.
A．Repeat the process till you feel sure that you’d feel comfortable saying the words to the person’s face. B．Everyone was new to the network once. C．The basic rule is simple: treat others in the same way you would want to be treated. D．When you send short messages to a person online, you must say something beautiful to hear.
请认真阅读下列短文,并根据所读内容在文章后表格中的空格填入最恰当的单词。
注意：每空格一个单词。
Eat more, Play more—Weight Less
In the United States, 20 to 40 percent of the adult population have a “weight problem”. To many people, the cause seems obvious: we eat too much. But scientific evidence does little to support this idea.
Several modern studies have shown that fatter people do not eat more on average than thinner people and that slim people are more active than fat people.
I believe that this shows overweight people can become relatively slim gradually via a progressive program of regular exercise. The key is regular, enjoyable activity.
Use of energy(calories) by the body falls into two categories. The first is energy used for essential bodily functions—digestion, heart beat, breathing—and BMR(新陈代谢). In an average-sized adult, BMR requires about 1400 calories per day.
The second category is energy used for physical activity—standing, walking and all other movements. Together with the BMR, it makes up total calorie use, which should be balanced by food intake for weight to remain stable.
For years now, we have known that dieting—especially severe dieting(400 calories per day, for instance)—decreases BMR. This is the body's defense system to keep energy when food supply is reduced. Unfortunately, it tends to weaken the diet's effects by enabling the body to “get by” on fewer calories. For this reason, I believe that severe dieting is not a good way to lose weight, and all dieting should be seen as a temporary measure.
In addition to helping weight loss and continued weight control, regular exercise has many other features to recommend it. While weight loss by dieting alone results in some loss of muscle as well as fat, weight loss by exercise and moderate dieting leads to an increased proportion（均衡）of muscle mass. The regular exerciser has good heart function too.
Regular exercise helps to raise blood levels of high－density lipoprotein(HDL) and increased exercise leads to increased food intake and thus to increased intake of critical nutrients (营养).
The benefits of eating more because of an increase in physical activity are not widely appreciated. Many people in this country, by actual measurement, have remarkably low calorie intake. Often the amount is so low (1 200 to 1 800 calories a day) that nutritionists worry about the adequacy(足够的)of their vitamin and mineral intake. And too little food, with inadequate fiber content, leads in the old population to chronic constipation(长期便秘)．
To sum up, most Americans still get too little regular exercise, and it is within this group that almost all obesity is found. Severe dieting should not be used as it is unpleasant and tends to be self-defeating. Moderate dieting combined with regular exercise is much more effective and enjoyable. The choice is yours: life on the sofa, nibbling celery or the active, healthy-eating, healthful way.
| Title |
Eat more, Play more—Weight Less |
| Causes of weight problems |
●It's commonly believed that adults' weight problems are due to (1)______ too much, but little scientific evidence (2)______ this idea. ●Studies show that fat people eat less and are (3)______ active than slim people. |
| (4)______of eating enough |
●Energy used for essential bodily functions, BMR, and (5)______ activity should be balanced by food intake for weight to remain stable ●Food intake offers (6)______ vitamin and mineral intake and prevents the old from chronic constipation. |
| Ways of weight loss |
●Dieting alone—a temporary measure ●Tending to weaken the diet's effects ●(7)______in some loss of muscle as well as fat ●Exercising (8)______ — a recommended way ●Having good heart function ●Helping to raise blood levels of HDL ●Attaining critical nutrients |
| (9)______ |
●Doing little exercise has much to do with obesity. ●Severe dieting should be (10)______. ●Moderate dieting as well as regular exercise is much more effective and enjoyable. |
In the past, man did not have to think about the protection of his environment. There were few people on the earth, and natural 36 seemed to be unlimited.
Today things are 37 . The world has become too 38 . We are 39 our natural resources too quickly, and at the same time we are 40 our environment with dangerous chemicals. If we 41 to do this, human life on earth will not 42 .
People realize today that if too many 43 are taken from the sea, there will soon be none left. Yet, with modern fishing 44 , more and more fish are caught.
We know that if too many trees are cut down, 45 will disappear and nothing will 46 on the land. Yet, we continue to use bigger and more powerful machines to 47 more and more trees.
We realize that if rivers are polluted with waste products from factories, we will die. 48 , in most countries waste products are still put into rivers or into the sea, and there are few laws to 49 this.
We also know that if the 50 of the world continues to rise at the present rate, in a few years, there won't be enough food. What can we do to solve the 51 ? If we eat more vegetables and less 52 , there will be more food available for everyone. Land that is used to grow crops feeds five times more people than land where animals are kept.
Our natural resources will 53 longer if we learn to recycle them. The world population will not 54 so quickly if people use modern methods of birth control.
Finally, if we 55 people to think about the problems we shall have a better and cleaner planet in the future.
A．resources B．sources C．materials D．matter
A．common B．the same C．changeable D．different
A．crowded B．polluted C．dirty D．busy
A．producing B．using up C．reducing D．making
A．protecting B．saving C．polluting D．fighting
A．try B．continue C．stop D．have
A．live B．last C．continue D．survive
A．fish B．seagulls C．crocodiles D．frogs
A．poles B．boats C．methods D．ideas
A．mountains B．the sea C．crops D．forests
A．grow B．plant C．save D．cut down
A．plant B．cut down C．save D．burn down
A．Thus B．However C．Generally speaking D．Therefore
A．encourage B．neglect C．stop D．wake up
A．production B．pollution C．population D．revolution
A．pollution B．environment C．questions D．problems
A．fruit B．meat C．fish D．grain
A．use B．stay C．keep D．last
A．raise B．rise C．run D．grow
A．force B．help C．educate D．show
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