英语翻译

题目

英语翻译
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 colours together with the change of the colours of crops(庄稼).When crops are green,locusts look green.But as the harvest (收获)time comes,locusts change to the same brown colour as crops have.Some other pests with different colours from plants are easily found and eaten by others.So they have 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.This is because they have the colours much like the trees.
Have you ever found 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.Whi

答案

你知道为什么不同的动物或者昆虫有自己独特的颜色吗?他们的颜色似乎主要是为了保护自己.
一些鸟爱吃蝗虫,但是鸟不能轻易地抓到他们.为什么?那是因为蝗虫群伴随着庄稼颜色的改变而改变颜色.当庄稼是绿的,蝗虫群也是绿的.但是当丰收时节来临,蝗虫群又变成了和庄稼一样的棕色.一些其他的具有不同颜色的昆虫能够很容易的从植物上发现和被其他东西吃掉.所以他们必须为了生命隐藏自己,而只在晚上活动.
如果你学习过动物的生活,你会发现颜色的主要作用就是保护他们自己.熊,狮子和其他的动物安静的穿过森林.他们不能被猎人轻易发现.这是因为他们的颜色像树一样.
你曾经发现过一些更特殊的行为吗?一种海里的鱼在面对危险时,能够释放出黑色的液体.当液体散开,他们的敌人就找不到它了.他立即就游走了.所以他们存活到现在,即使他们一点也不强壮.