閱讀短文，從每題所給的ABC三個選項中選出最佳答案回答問題或完成句子。
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(媒質(zhì)), 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.
小題1:When the traffic lights turn ______, we will stop driving a car.
A. red    B green     C. yellow
小題2:According to the passage, the scattering of the red light is the _______.
A. longest    b. weakest       C. farthest
小題3:The underlined word "wavelength" means________ in Chinese.
A.波浪        B.光波      C.波長
小題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
小題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

小題1:A
小題2:B
小題3:C
小題4:C
小題5:C

試題分析：這篇短文主要介紹了在交通燈變成紅燈時我們就會停止停止開車和過馬路，為什么交通燈會設(shè)計成紅色而不是其他的顏色呢？文章給我們進(jìn)行了解釋。
小題1:細(xì)節(jié)理解題。根據(jù)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。故選A
小題2:細(xì)節(jié)理解題。根據(jù)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。故選B。
小題3:詞意猜測題。根據(jù)句意為：如果波長長，那么散射短。故選C
小題4:細(xì)節(jié)理解題。根據(jù)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，故選C
小題5:歸納理解題。根據(jù)由本文的第一段提出問題：Why is red used for traffic lights instead of other colors? 可知，故選C
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科目：初中英語 來源：不詳 題型：閱讀理解

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閱讀下列短文，根據(jù)短文中的信息完成文后表格。在答題卡標(biāo)有題號的橫線上，寫出空缺處所填單詞的正確形式。（每空一詞）
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Title
How to _小題1:Your Memory
Main
小題2:
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閱讀短文，按要求完成短文后的各項任務(wù)
In the past, man did not have to think about the protection of the environment. There were few people on the earth, and natural resources(資源) seemed to be unlimited(無限的) .
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Everyone realizes today that if too many fish are taken from rivers and the sea, there will soon be none left. Yet, with modern fishing methods(方法) , more and more fish are caught. We know that if too many trees are cut down, forests will disappear and nothing will grow on the earth. Yet we continue to use bigger and more powerful machines to cut down more and more trees.
We realize that if rivers are polluted with waste products from factories, fish will die. However, in most countries wastes are still put into rivers or the sea, and there are few laws to prevent this. Also, weknow that if the population of the world is becoming larger and larger, in a few years there will not be enough food. What can we do to solve these problems?
If we eat more vegetables and less meat, there will be more food available for everyone.
③Our natural resources will last longer if we learn to recycle(循環(huán)再用)them. The world population will not rise so quickly if people use modern methods of birth control.
Finally, if we educate people to think about the problems, we shall have a better and cleaner planet in the future. In a word, it is very important to protect our environment.
小題1:在①、②空白處分別填入一個適當(dāng)?shù)脑~使句意完整、上下文通順。
_____________  ______________
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__________________________________________________            _____
小題3:回答問題: How can we protect fish?
____________________________________________________________________
小題4:在文中找出與There are more and more people in the world.意思相近的句子。
_____________________________________________________________      
小題5:在文中找出最能表達(dá)該短文主題的句子，并將它寫在答題卡上。
__________________________________________________________________ 

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