阅读短文，从每题所给的ABC三个选项中选出最佳答案回答问题或完成句子。When the traffic lights turn red, we will sto
题型：不详难度：来源：
阅读短文，从每题所给的ABC三个选项中选出最佳答案回答问题或完成句子。
When the traffic lights turn red, we will stop driving a car or crossing a street. Why is red used for traffic lights instead of other colors?
As we know, scattering (散射) happens when light goes through the air. For the same media(媒质), if the wavelength islong, the scattering will be short. If the wavelength is short, then the scattering will be long.
Of all lights we can see red has the longest wavelength, so the scattering is the weakest. That means the red light travels far. In fact, it travels farther on rainy days.
Using the red light can help drivers in farther areas sec the lights. It helps drivers stow down or stop in lime. If drivers don"t see the red light until they are close, they may not be able to stop the car in time. An accident may happen Red can also excite people. We can act more quickly when we see the color red. In a word, red lights help drivers stop in time and help prevent accidents.
小题1:When the traffic lights turn ______, we will stop driving a car.
A. red B green C. yellow
小题2:According to the passage, the scattering of the red light is the _______.
A. longest b. weakest C. farthest
小题3:The underlined word "wavelength" means________ in Chinese.
A.波浪 B.光波 C.波长
小题4:What can the red light help drivers do?
A. It can help drivers in farther areas see the lights.
b. It can help drivers slow down or stop in time.
C. A and b
小题5:Which of the following is the best title?
A. Why do accidents happen
b. How does the red light travel
C. Why do we use red traffic lights |
答案
小题1:A
小题2:B
小题3:C
小题4:C
小题5:C |
解析
试题分析：这篇短文主要介绍了在交通灯变成红灯时我们就会停止停止开车和过马路，为什么交通灯会设计成红色而不是其他的颜色呢？文章给我们进行了解释。
小题1:细节理解题。根据第一段的第一句：When the traffic lights turn red. we will stop driving a car or crossing a street.可知。故选A
小题2:细节理解题。根据第三段的第一句 ：Of all lights we can see red has the longest wavelength, so the scattering is the weakest.可知。故选B。
小题3:词意猜测题。根据句意为：如果波长长，那么散射短。故选C
小题4:细节理解题。根据最后一段的第一句 ：Using the red light can help drivers in farther areas see the lights, it helps drivers stow down or stop in time. 可知，故选C
小题5:归纳理解题。根据由本文的第一段提出问题：Why is red used for traffic lights instead of other colors? 可知，故选C |
举一反三
In America, the school day usually starts at 9a.m. and finishes at about 4 p.m. The school subjects different from ours. In China, we always _____ Chinese, math, English, P.E. and so on. But in America , students have more _____ , such as cooking and driving lessons. Their life isn’t just _____ study . They have _____ things to do than the Chinese students do . There are many clubs in American schools, too. If the students are _____ in sports , they can join different sports clubs . American students also have art clubs ,language clubs and some _____ clubs. From 2:30 p.m. to 4 p.m. , they do _____ things in different clubs.
Maybe you think English is very popular in the world, so American students don’t need to learn any other language _____ that’s not true. American kids from the age of seven ____ learn a foreign language. For example ,they learn French or Chinese.
| 小题3: | | A．clubs | B．sports | C．lessons | D．things |
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| 小题5: | | A．much | B．more | C．many | D．lots |
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| 小题6: | | A．interest | B．interested | C．interests | D．interesting |
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| 小题7: | | A．other | B．another | C．any | D．others |
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| 小题8: | | A．impossible | B．Dangerous | C．different | D．important |
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| 小题10: | | A．have to | B．don’t have to | C．has to | D．must to |
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阅读下面短文,将所给的五个句子填入空白处,是短文意思完整正确.(计5分)
Now satellites are helping to forecast(预报) the weather . 小题1:______The satellites take pictures of the atmosphere(大气),because this is where the weather forms(形成). 小题2:______So the scientists there can see the weather of any part of the world and tell how the weather will change.
Today, nearly five hundred weather stations in sixty countries can receive satellite pictures. When they receive the new pictures ,they compare(比较) them with the earlier ones . 小题3:_______This may mean that the weather forecast, 小题4:_______
So the weather satellites are of a great help to the scientists at the station. 小题5:________Now they can make good forecasts for 3 or 5 days .Soon perhaps, be able to forecast the weather for a week or more ahead(提前).| A．In the past they could forecast the weather for about 24 or 48 hours earlier. | | B．They send these pictures to the weather station . | | C．they can tell people about it . | | D．They are in space , and they can reach any part of the world . |
E. Perhaps they may find that the clouds have changed during the last few hours. |
How do you go to school? Some students may answer, “By car”. Maybe some others will look at them through green glasses (羡慕地).
You feel bad if you have no cars. It’s true that cars are . Many people find it hard to think about life will be like if they have no cars. But now more people know that too many cars bring great . They make streets too .
People are trying to stop pollution (污染) from cars. way is to make green cars. But it much to make these cars. And more people think about better ways. We can our lifestyle. A lot of Americans go to work bike now. Riding bikes is clean and healthy. It helps people get strong. Let’s try together! I hope we can live in a green world with no pollution .
| 小题1: | | A．can’t | B．needn’t | C．won’t | D．aren’t |
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| 小题2: | | A．interesting | B．important | C．different | D．dangerous |
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| 小题4: | | A．lessons | B．fun | C．skills | D．problems |
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| 小题5: | | A．small | B．clean | C．busy | D．modern |
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| 小题6: | | A．Other | B．Another | C．One | D．The other |
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| 小题7: | | A．uses | B．spends | C．pays | D．costs |
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| 小题8: | | A．have | B．change | C．enjoy | D．make |
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| 小题10: | | A．any days | B．some days | C．some day | D．any day |
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China is a nation with a rich culture in handwriting. “Even though the computer is widely used today, Chinese people should not forget the skill of writing with hands,” said a Chinese government official(官员).
Nowadays, the computer has become a very useful tool to help people to write. As people use computers more often than before, many people have forgotten how to write Chinese characters (字). People often make a lot of mistakes in writing.
At present, China is trying to help pupils and teachers to improve their writing with the help of information technology. With the technology, it is hoped that teachers can write their teaching contents (内容) on the blackboard and students can respond by writing, too.
The Chinese character test shows that nowadays, many college students’ handwriting has become worse. Many college students do not know how to compose (组成) words or sentences in Chinese character in the right way. Not only kids, many adults also have met the same problem. They might be able to tell the general form of a certain character. However, if you ask them to spell out the character in detail (详细地), they can’t. On the other hand, they can easily type out the character on a computer.
In the national language teaching course, we can solve this problem with the use of certain technologies. Actually, apart from（除了）technology, there is a lot that we can do. For example, we may ask students to finish their homework by writing with hands instead of typing.
小题1:People often make a lot of mistakes in writing Chinese characters because ________.| A．they use computers too often and many people have forgotten how to write them | | B．Chinese characters are too difficult to write | | C．they are using too much English | | D．the country forgets to stress the importance of the Chinese writing |
小题2:The problem of college students’ handwriting is that _________.| A．they don’t know how to write a Chinese character in the right way | | B．they only know how to type out the character on a computer | | C．they can write correctly with the help of information technology | | D．they don’t know how to make up words or sentences in Chinese characters correctly |
小题3:How is China trying to help students and teachers to improve their writing?| A．By punishing people who can’t write correctly. | | B．By controlling people’s use of computers. | | C．By using information technology. | | D．By asking them to write everything with hands. |
小题4:What does the underlined word “respond” in the third paragraph mean?小题5:What’s the main idea of this passage?| A．Computers are harmful(对……有害的) to our handwriting. | | B．How we can write good Chinese characters. | | C．Chinese people should not forget the skill of writing with hands. | | D．Don’t forget our mother language. |
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In fact, is always around you if you put your heart into it. When you are in at school, your teachers will help you; when you do something wrong, people you feel unhappy; when you in something, your friends will say congratulations to you. All these are your happiness. If you notice a bit of them, you can see happiness is always around you.
Happiness is not the same as money. It is a feeling of your heart. you are poor, you can also say you are very happy. Money is not . You have something else that money can’t buy. When you meet with difficulties, you can loudly say you are very happy because you have more chances to challenge . So you can not always say you are poor and you have bad luck. If you take every chance you get, you can be a happy and lucky person.
小题1:小题2:| A．alone | B．happy | C．sad | D．lonely |
小题3:| A．sadness | B．happiness | C．loneliness | D．unhappiness |
小题4:| A．trouble | B．difficult | C．happy | D．sad |
小题5:| A．beside | B．around | C．besides | D．by |
小题6:| A．fail | B．get | C．make | D．succeed |
小题7:小题8:| A．But | B．However | C．Although | D．And |
小题9:| A．anything | B．everything | C．something | D．nothing |
小题10:| A．yourself | B．you | C．myself | D．me |
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