4.We should prevent pollution____happily.A.from livingB.livingC.to livingD.to live5.Jane came very close_a gold medal for Britain in the Olympics.A.to winB.winningC.to winningD.to be won6.There is _____what the weather will be likeA.not k

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4.Weshouldpreventpollution________happily.A.fromlivingB.livingC.tolivingD.tolive5.Janecameveryclose_

4.We should prevent pollution________happily.A.from livingB.livingC.to livingD.to live5.Jane came very close_______a gold medal for Britain in the Olympics.A.to winB.winningC.to winningD.to be won6.There is _______what the weather will be likeA.not k
4.D
这题目怪异,走眼了,sorry!
如果使用prevent sb/sth (from) doing sth结构,一则AB两个答案都可以（from在主动句中可以省略）,二则句意不通“阻止污染快乐地生活”?
所以答案用D,后面使用不定式做目的状语.
句意为：为了惬意栖居,我们应该阻止污染.
5.C
close to意思是“接近/靠近”,其中to是介词.
所以其后加名词或动名词.
6.B
knowing为不可数名词,意思也是“知道/了解”.
know不可能和is一起做谓语,排除C；
如果是It is而不是there is,才可以用被动语态,排除D；
A错在少了any,即：not any knowing = no knowing.

A A B

We should prevent fire( )(burn)the house. What should we do to prevent AIDS? we should prevent people ____shooting ___birds.填空 What should we do to prevent AIDS英语Topic what measures should we take to prevent sandstorm coming? we should take steps to prevent the spread of flu We should take some actions to _ people from _ wild animals.A.prevent,kill B.prevent,killing C.preventing,kill D.prevent,to kill we should prevent the old trees from being cut down 还是being cutting down we should prevent pollution____a happy life.A from living B to live为什么a不可以? We should prevent them from cutting down the trees.同义句改写 we should prevent pollution _____happily.A.to live B.to living 原因, what should we do to prevent global wraming?水平在两级左右, We should often （change clothes） to prevent the disease.《对括号部分提问》 we should do our best to prevent these rivers from _____(pollute)我不会, We should prevent them ___________ (pour) waste water into the riverAll these skills ___________ (teach) in our school. What measures should we take to prevent drunk driving?教教我该怎么回答这个问题要英文的急求 we should prevent pollution______ happily.A to live B for living C from living D living选什么,为什 we should do our best to prevent our earth___.A being polluted B from polluting 答案是a 为什么?