英语翻译Friends and Enemies P21 分清敌友We often think that insects do no good to us.This is partly true.Many insects are not helpful to people.Flies can make people ill.Some other insects make people ill,too.Farmers are at war with insects m

英语翻译Friends and Enemies P21 分清敌友We often think that insects do no good to us.This is partly true.Many insects are not helpful to people.Flies can make people ill.Some other insects make people ill,too.Farmers are at war with insects m
英语翻译
Friends and Enemies P21 分清敌友
We often think that insects do no good to us.This is partly true.Many insects are not helpful to people.Flies can make people ill.Some other insects make people ill,too.
Farmers are at war with insects most of the time.Hungry insects kill plants in the fields.Farmers spray the fields to kill these insects.
Does this mean that all insects do no good to people?No.Many of them are helpful to man.Bees make honey.Without bees and other insects,many trees would have no fruit.Silkworms make silk.Some insects eat other insects that kill fruit trees.
Have you ever seen a praying mantis?People who do not know about the praying mantis sometimes kill it because they think it does no good.But this insect is of great help to farmers and other people.It eats insects that kill plants.
Long ago,many people thought of most insects as bad ones.Today,we know the differences between bad insects and those that help us.
Notes:spray v.喷雾（此文中指喷洒农药）n.浪花,飞沫 silkworm n.蚕 parying mantis n.螳螂 （pl.加es或去i）

英语翻译Friends and Enemies P21 分清敌友We often think that insects do no good to us.This is partly true.Many insects are not helpful to people.Flies can make people ill.Some other insects make people ill,too.Farmers are at war with insects m
分清敌友
我们常常认为昆虫是有害的,从一定程度上来讲,这确实是事实.许多昆虫对人们是无益的.苍蝇能使人生病,其他一些昆虫同样能使人生病.农民们大多数时候是在和昆虫斗争的,饥饿的昆虫吃掉田里的农作物,农民们喷洒农药来杀死这些昆虫.
是不是这就意味着所有的昆虫都是对人类有害的?并不是的,许多昆虫对人类是有益的.蜜蜂酿造蜂蜜.如果没有由于蜜蜂和其他一些昆虫,许多树就无法结果.蚕能够吐丝.有些昆虫专吃那些毁害果树的昆虫.
你见过螳螂吗?那些不认识螳螂的人们有时会杀死螳螂,因为他们认为螳螂是有害的,但是这种昆虫对农民和其他人们是非常有帮助的,螳螂专吃那些毁害庄稼的昆虫.
很久以前,许多人们认为大多数的昆虫是害虫.今天,我们认识到了害虫和对人们有帮助的昆虫之间的区别.

水平有限，试翻译 （为了流畅，采取意译，而非直译）
通常我们认为昆虫对我们是有害的，这种观点有一定的道理。很多昆虫对人体有害：苍蝇会让我们生病，其他的虫子也会让我们生病。
农民与昆虫作长期的斗争，饥饿的昆虫会毁坏地里的庄稼，农民通过喷洒药剂消灭地里的害虫。
这是否意味着所有的昆虫都对人们有害？不是的，他们中的很多种对我们有利：蜜蜂产蜜，如果没有蜜蜂和其他昆虫传粉，很多树木就...

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水平有限，试翻译 （为了流畅，采取意译，而非直译）
通常我们认为昆虫对我们是有害的，这种观点有一定的道理。很多昆虫对人体有害：苍蝇会让我们生病，其他的虫子也会让我们生病。
农民与昆虫作长期的斗争，饥饿的昆虫会毁坏地里的庄稼，农民通过喷洒药剂消灭地里的害虫。
这是否意味着所有的昆虫都对人们有害？不是的，他们中的很多种对我们有利：蜜蜂产蜜，如果没有蜜蜂和其他昆虫传粉，很多树木就会不结果实；蚕可以吐丝来做绸子，还有一些昆虫吃掉其他以果树为食的害虫。
你见过螳螂吗？那些不了解螳螂的人往往会把他们当成害虫杀死它们，但这种昆虫对农民和人类来说都有很大用处——它们吃掉以果树为食的害虫。
很久以前，人们把大多数的昆虫当作害虫，现在，我们知道了益虫和害虫的区别。

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