英语短文分析一篇,Do you know why different animals or pests (昆虫)have their special colours?Colours in them seem to be used mainly to protect themselves.Some birds like eating locusts (蝗虫),but birds cannot easily catch them.Why?It is b

英语短文分析一篇,Do you know why different animals or pests (昆虫)have their special colours?Colours in them seem to be used mainly to protect themselves.Some birds like eating locusts (蝗虫),but birds cannot easily catch them.Why?It is b
英语短文分析一篇,
Do you know why different animals or pests (昆虫)have their special colours?Colours in them seem to be used mainly to protect themselves.
Some birds like eating locusts (蝗虫),but birds cannot easily catch them.Why?It is because locusts change their eolours together with the change of the colours of crops.When crops are green,locusts look green.But as the harvest time comes,locusts change to the same brown colonr as crops have.Some other pests with different colours from plants are easily found and eaten by others.So they are to hide themselves for lives and appear only at night.
If you study the animal life,you'll find the main use of colouring is to protect themselves.Bears,lions and other animals move quietly through forests.They cannot be easily seen by hunters (猎人).This is because they have tile colours much like the trees.
Have you evel noticed an even more strange act?A kind of fish in the sea can send out a kind of very black liquid (液体)when it faces danger.While the liquid spreads over (散开),its enemies (敌人) cannot find it.And it immediately swims away.So it has lived up to now though it is not strong at all.
1.From the passage we learn that locusts ____.
A.are small animals B.are easily found by birds
C.are dangerous to their enemies D.change their co]ours to protect themselves
2.How can pests with different colours from plants keep ont of danger?
A.They nm away quickly.B.They have the colours much like their enemies.
C.They hide themselves by day and appear at night.D.They have to move quietly.
3.Bears and lions can keep sate because __________.
A.they have the colom's much like the trees B.they move quietly
C.they like brown and grey eolours D.they live in forests
4.Why can the kind of fish tire up to now?
A.Because it is very big and strong.
B.Because the liquid it sends out can help it escape from its enemies.
C.Because the liquid it sends out can kill its enemies.
D.Because it swims hster than any other fish.
5.Which is tile best title for this passage?.
A.The Change of Coloars for Animals and Pests B.Colours of Different Animals and Pests
C.The Main Use of Colours for Animals and Pests D.Some Animals and Pests

英语短文分析一篇,Do you know why different animals or pests (昆虫)have their special colours?Colours in them seem to be used mainly to protect themselves.Some birds like eating locusts (蝗虫),but birds cannot easily catch them.Why?It is b
你知道为什么不同的动物和昆虫有着特殊的颜色吗?肤色对于它们来
说似乎常常意味着保护它们自己.
一些鸟类喜欢吃蝗虫,但是鸟儿却不能轻易地抓住它们.这是为什么
因为蝗虫随着谷物颜色变化而改变自己的颜色.当当谷物是绿色时
,蝗虫看起来是绿色的.但是当收获的季节来到,蝗虫又变成像谷物一
样的棕色.而一些其他和植物颜色不一样的蝗虫则很容易被发现,并被
吃掉.所以它们它们为了生活隐藏自己,只在晚上出现.
如果你研究动物的生活,你会发现它们颜色的用途主要是保护它们自
己.熊,狮子和其他一些动物很快地穿梭于树林间.它们不能很快地被
猎人发现.这是因为他们的颜色非常像树木.
你曾今注意过一些其他动物更奇怪的行为吗?有一种生活在海里的鱼
当面对危险时可以散发出一种特别黑的液体.当液体散开,它的敌人不
会发现它.它迅速的游开.这就是为什么它一点也不强壮却可以活到现
在的原因.
第一题：选D,从文章出可以看出蝗虫靠改变颜色开保护自己.
第二题：选C,它们白天隐藏夜晚出现.
第三题：选A,虽然B说跑的很快也是一本分原因 但是因为文章通篇
在说颜色,所以是因为他们的颜色像树木才是它们逃脱.
第四题：选A,那种鱼可以生存到现在的原因是因为它们可以发出一
种液体,帮助它们逃脱.
第五题：选C,这篇文章的标题,动植物颜色的主要用途.

1、选D.
2、C.
3、A.
4、B.
5、C.

1d
2c
3b
4b
5c