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Have you wondered why different animals ...

Have you wondered why different animals or pests have their particular colours? Colours in them seem to  be used mainly to protect themselves.

Birds, especially seagulls(海鸥) are very fond of locusts(蝗虫), but birds can’t easily catch locusts because locusts change their colours together with the change of the colour of crops(庄稼). When crops are green, locusts look green. But when crops are ripe(成熟的), locusts take on exactly the same brown colour as crops have. Some other pests with different colours from plants are usually easily found and eaten by their enemies. So they have to hide themselves in terror for lives and appear only at night.

If you study the animal life in any part of the world, you will find the main use of colouring is to protect themselves, bears, wolves and other beasts move quietly through forests. They are usually invisible to the eyes of hunters, because they have the colour much like the barks(树皮) of trees.

An even more strange act remains to be noticed. A kind of fish living in seas can send out a kind of very black liquid when it faces danger. While the liquid is over, its enemies cannot find it, and it quickly swims away. Thus,it has existed(存活)up to now though it is not powerful at all.

1.This passage mainly talks about ______.

A. the change of colour in locusts

B. the protective colouration of animals and pests

C. how a certain sea fish protects itself

D. animals or pests can dye themselves different colours

2.The pests that have different colours from plants usually appear at night because ______.

A. their enemies can easily find them and eat them

B. they have the habit of coming out in darkness

C. it’s easy for them to destroy plants in darkness

D. birds take their rests when night comes

3.What does the word “invisible” in Paragraph 3 mean?

A. Can’t be seen      B. Can be seen

C. Can’t move        D. Can’t change

 

1.B 2.D 3.A 【解析】 试题分析:文章主要谈论的是动物使用颜色来保护自己的问题 1.B考查主旨大意题。文章主要谈论的是动物使用颜色来保护自己的问题,故选B项。 2.D考查细节理解题。根据短文第二段最后一句“So they have to hide themselves for lives and appear only at night.”的描述可知,这些动物白天躲藏起来,晚上出来活动。故选D 3.A 考查推理判断题。根据because they have the color much like the barks(树皮) of trees. 可知他们的颜色和周围的颜色几乎一样,他们就难以被发现,故A正确 考点 :科普类阅读 。
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书面表达

高三学生面临着沉重的学习压力,很多学生利用课间十分钟的休息时间学习,实际上没有什么效果。假如你是新华中学高三年级的学生李越,就此现象给中学生英语报写封信,发表自己的看法。信的内容须包括以下要点:

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注意:1.词数100左右; 2.信的开头已经给出(不计入总数)。

Dear editor,

I’m a Senior 3 student from Xinhua Middle School.

______________________________________________________________________________________

______________________________________________________________________________________

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短文改错

增加:在缺词处加一个漏字符号(),并在其下面写出该加的词。

删除:把多余的词用斜钱(\)划掉。

修改:在错的词下划一横线,并在该词下面写出修改后的词。

注意:

1. 每处错误及其修改均仅限一词;

2.只充许修改10处,多者(从第11处起)不计分。

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