1、Onceenvironmentaldanage,ittakesmanyyearsforthesystemtorecover.AhasdoneBistodoCdoseDisdone2、Theexplosiononthesuncannotbeheard,therenoairbetweentheearth'satmosphereandthesun.AbeingBisChavingDha

Question

1、Once environmental danage _____,it takes many years for the system to recover.
A has done B is to do C dose D is done
2、The explosion on the sun cannot be heard,there___no air between the earth's atmosphere and the sun .
A being B is C having D has
there be 和there being 什么区别,各用在什么句型当中,还有there to be .

Answer 1

1.D,一旦环境损坏被完成,系统修复需要花费很多年得时间.
显然environmental damage 是被do 就是is done.
2.A,
太阳爆炸不会被听见,因为地球和太阳之间没有气体.、
there to be和there being 都可以做宾语.
1）如果是介词的宾语,要用there being,而不是there to be.
2）如果是动词宾语,要看这个动词,我们学过有些动词后面只能接动名词,比如mind,enjoy,appreciate等词后面是必须加doing的形式的；而这些动词同样适用于there being,不能用there to be.
同样,有些动词只能接不定式的,如want,hope,would like等,后面理所当然就接there to be了.
there being 是there be 句型的特殊结构
there being 的用法
1) 用作介词后的复合宾语
I never dreamed of there being a picture on the wall.我从未想到墙壁上有幅画.
I was wrong about there being some misunderstanding between us.
认为我们之间有误解是我的错误.
2) 作状语用的独立结构
There being nothing to do,we went home.因为没有什么事要办,我们就回家了.
There being nobody else at hand,I had to do it by myself.
由于身边没有别人,我只得自己干了.