题目内容
Now satellites(卫星)are helping to forecast(预报)the weather. They are in space and they can reach any part of the world.The satellites take pictures of the atmosphere(大气), because this is where the weather forms(形成)。They send these pictures to the weather station. So meteorologists(气象专家)can see the weather of any part of the world. From the pictures, the scientists can often say how the weather will change.
Today, nearly five hundred weather stations in sixty countries receive satellite pictures. When they receive new pictures,the meteor- ologists compare(比较)them with earlier ones. Peerhaps they may find that the clouds have changed during the last few hours .This may mean the weather on the ground may soon change,too. In their next weather forecast, the meteorologists can say this.
So the weather satellites are a great help to the meteorologists. Before satellites were invented, the scientists could forecast the weather for about 24 or 48 hours. Now they can make good forecasts for 3 or 5 days. Soon,perhaps , they may be ablet to forecast the weather for a week or more ahead(提前)
【小题1】Satellites travel__________.
A in space B in the atmosphere
C above the ground D above space
【小题2】Why do we use the weather satellites to take pictures of the atmosphere? Because___________.
A the weather satellites can do it easily
B clouds form there
C the weather forms there
D the pictures can forecast the weather
【小题3】 Meteorologists forecast the weather________.
A when they have received satellite pictures
B after they have compared new satellite pictures with earlier ones
C before they receive satellite pictures
D while they study satellite pictures
【小题4】Maybe we’ll soon be able to forecast the weather for _______.
A one day B two days C five days D seven days or even longer
【小题5】The main idea of this passage is that satellite are now used in______.
A taking pictures of the atmosphere
B receiving pictures of the atmosphere
C doing other work in many ways
D weather forecasting
【小题1】A
【小题2】C
【小题3】B
【小题4】D
【小题5】D
解析【小题1】本文第一,二两句为Now satellites(卫星)are helping to forecast(预报)the weather. They are in space and they can reach any part of the world.所表示的含义为卫星有助于预报天气,在太空中,故本题选A。
【小题2】本文第三句为The satellites take pictures of the atmosphere(大气), because this is where the weather forms所表示的含义为天气卫星拍摄大气照片,因为在这个地方是大气构成的地方,故本题选C。
【小题3】本文第二段第二行为When they receive new pictures,the meteor- ologists compare(比较)them with earlier ones. Peerhaps they may find that the clouds have changed during the last few hours .This may mean the weather on the ground may soon change,too所表示的含义为气象专家通过把卫星拍摄的照片和之前的照片作比较,最终得出预报的天气,故本题选B。
【小题4】本文最后一句为perhaps , they may be able to forecast the weather for a week or more ahead(提前),所表示的含义为我们很快将能够对7天甚至更长时间的天气作出预报,故本题选D。
【小题5】本文主要谈论了天气卫星的有关情况,以及天气卫星如何被使用在天气预报中,故本题选D。
Electric bicycles which run on battery-operated (电瓶) motors are winning over riders of ordinary bikes 41 their speed, quality and environmental advantage.
They were first 42 on 1980s in China, but the selling was not very good. Today, thanks 43 improvements on battery quality, the electric bikes sell well. There are now more than 100 electric bicycle producers in China and 26 million such bicycles were produced in 2011. Japan is another large 44 of such bicycles in the world with a total production reaching 381,721in 2010.
45 China is one of the largest producers of electric bicycles in the world, the 46 of its producers with mass production (大批量生产) is actually small.
Electric bicycles are still 47 in China. Time is needed for people to become familiar with them and accept them. Each bike’s price of between 2,000 yuan (US $318) and 3,000 yuan (US $477) is still 48 for ordinary citizens (民众). Although such bikes are quick, safe and 49 to operate, their batteries still have shortcomings (不足). They weigh more than 10 kilograms; their service life is 50 two years and they 51 400 yuan each.
There were more than 450 million bikes in China in 2006. If just one percent of all these bikes are replaced by electric 52 , the market will be very large. And 53 the battery is further improved and the price is 54 , many of us will not be able to keep back from 55 the latest electric bikes
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Do you know why different animals or pests(害虫) have their special colors? Colors in them seem to be mainly used to 1 themselves.
Some birds like eating locusts(蝗虫), but birds cannot 2 catch them. Why? It is because locusts change their 3 with the change of the colors of crops. When crops are green, locusts look 4 . But as the harvest time comes, locusts change into the same brown color 5 crops have. Some other pests whose colors are 6 plants are easily found and eaten by 7 . So they have to hide themselves for lives and appear only 8 .
If you 9 animals’ life, you’ll find the main use of colors is to protect 10 . Bears, lions and other animals 11 quietly through forests. They cannot be easily seen by hunters 12 their colors are much like the trees.
Colors are useful not only on the land, but also in the 13 . A kind of fish can 14 a kind of black liquid(液体) when they face danger. The liquid spreads over quickly, so they cannot be found by their enemies and can quickly swim away. That is 15 they can live safely though they are not strong at all. So colors are really useful to animals.
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Dictionaries say that “spring fever” is a lazy or restless feeling . People usually have the feeling on the first warm day of spring. Everyone has probably felt it at one time or another . people have talked about it for years.
Recently, scientists have taken a good look at spring fever. What they found is quite surprising.
In many places we live in , the winter months often seem dark and dreary. When spring comes late March , the world becomes colorful . The number of daylight hours grows with each passing day. According to many scientists, all the sunlight sets off chemicals in the brain (大脑). The chemicals make our feeling change and bring on spring fever.
【小题1】How do people who have spring fever feel ?
A.active | B.awake | C.energetic | D.restless . |
A.colors | B.sunlight | C.dark | D.illness |
A.沉闷的 | B.暖和的 | C.晴朗的 | D.明亮的 |
A.How to Get Over Spring Fever | B.Spring Fever |
C.Darkness in winter | D.Spring and winter |
There is not enough oil in the world now. As time goes by ,it becomes less and less ,so what are we going to do when it runs out? Perhaps we will go back to use horses ,carriages and bicycles .
In the Second World War ,some people didn't use gas made from petroleum (石油)in their cars .They made gas from wood and plants instead . The cars didn't go fast ,but they ran ,so this was better than nothing. However, in the future, we can't cut down all our trees to make gas; we need our trees for other things, too.
Besides different types of gas, we can also use electricity(电)to run our cars but first we must make the electricity !Some countries have coal and they make electricity with that, but we might not always have coal, either. Other countries have big ,strong rivers and they can use the power of water to turn turbines(涡轮机) and make electricity more easily and cheaply.
We are also able to get power from the ocean tides. We put turbines into the mouth of the river .Then the tide comes in ,the water turns the turbines and then it goes out ,it turns them again.
Which of these ways will be used to run our cars in the future?
【小题1】When might people have to go back to using horses and carriages?
A.When they are poor |
B.When they run out of oil |
C.When they need more exercise |
D.When there aren't any big trees in the world |
A.2 | B.5 | C.4 | D.3 |
A.how to run our cars |
B.what to do when oil runs out |
C.different types of gas |
D.the way to make electricity |
?
The building is shaking. A woman with a baby in her arms is trying to open the door, but fails. Finding no way, she rushes into her bedroom and there they survive the earthquake. ?
In a factory building, as the workshop floor swings under the terrible shaking, workers run for safety. Some hide(隐藏) under the machines and survive , but others who try to run outside are killed by the falling ceilings.?
These scenes, played by actors and actresses, are from a film of science education 《Making a Split Second Decision》 shown in 1998 on China Central TV in memory of Tangshan Earthquake.
By studying actual cases in the earthquake areas and scientific experiments, experts(专家)find that buildings remain untouched for the first 12 seconds of an earthquake.?
In this short time, one has the best chance of surviving an earthquake by staying near the inside walls, in bedrooms and under beds, experts concluded in the film. “Earthquakes seem to catch the lives of those who run,” said many survivors in the earthquake areas, describing how their friends were killed on the doorways or along the stair steps as they tried to get out of the building.?
Their advice was proved in the film, “Take a hiding-place where you are rather than run, unless you are sure you can reach a safe open place in ten seconds.”?
【小题1】The word “survive” appears in the passage several times. It probably means in Chinese.
A.遇难 | B.幸存 | C.恐惧 | D.摇晃 ? |
A.the factory building was shaking terribly? |
B.they were making a film? |
C.they didn’t have enough time to run outside? |
D.they were too nervous |
A.cry for help? |
B.not move and lie on the floor at once? |
C.run down the steps as fast as you can? |
D.find a safe place and hide in at once or run out in ten seconds |
A.In a magazine. | B.In an advertisement. | C.In a history book. | D.In a poster. ? |
The world’s population was about 6.5 billion in 2008. ___46___ three billion people ___47___ Asia now. That’s about half of the world’s population.
China has the ___48___ population in the world, and about one fifth of the people in the world live in China. ___49___ the large population, there is ___50___ living space for each family. And it’s difficult for lots of people to find jobs. A large population also causes many ___51___ for ___52___ nation. For example, we are short ___53___ energy and water. Most cities are more ___54___ than before, and the traffic is much ___55___. The large population ___56___ a serious problem.
So far, our government has taken many measures to control the population. One is know ___57___ the one-child policy. It has worked ___58___ in controlling China’s population. Thanks to the policy, China is developing ___59___ and people’s living conditions are improving rapidly. However, the population problem is ___60___ serious in China. We still have a long way to go.
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