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求英语选择题详解……答案已经给出!详解哦!8道题1题10分悬赏~

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求英语选择题详解……答案已经给出!详解哦!8道题1题10分悬赏~
1.The visitor here are greatly impressed by the fact that ___ people from all walks of life are working hard for ___new Jiangsu
A 不填;a
B 不填;the
C the;a
D the;the
选B

2.Two fifths of the forest____destreyed by the fire.Eighty percent of the forest___pine trees.
A.was,were
B.were,was
C.was,was
D.were,were
选B

3.It saves time in the kitchen to have things you use a lot ____ easy reach.
A.near
B.upon
C.around
D.within
选D

4._____ they decided which college to go to ,students should research the admission procedures.
A.Once
B.As
C.While
D.Until
选A

5.Sam_____some knowledge of the computer just by watching others working on it.
A.brought up
B.picked up
c.looked up
d.set up
选B

6.Hi,Tom.Any idea where Jane is? She____in the classroom. I saw her there just now.
A.shall be
B.should have been
C.must be
D.mighe have been
选C

7.---Why does the lake smell terrible?
---Because large quan tities of water _____
A.have polluted
B.is being polluted
C.has being polluted
D.have been polluted
选D

8.The play__next month aims mainly to reflect the local culture.
A.produced
B.to be produced
C.being produced
D.having been produced
选B
求英语选择题详解……答案已经给出!详解哦!8道题1题10分悬赏~
第一题,专有名词前不用冠词,但有形容词修饰时用定冠词the,如:
the developed USA
the developing China
第二题,分数、百分比作主语,后跟of短语时,谓语动词和of后面的名词一致,但是如果把这分数看成一个整体时,也可以用单数形式.
第三题,介系词within表示“在……之内”,所以within easy reach表示“在够得到的范围以内”.
第四题,状语从句的连接词本身是有一定的字义的,要根据上下文和连接词本身的字义,来选择正确的连接词,这里once作为连接词,表示“一旦”的意思.
第五题,这里根据意义,要填的短语动词是pick up,pick up表示“学会”,但是不是你听课去学,比如你每天看土豆网上谢孟媛老师的《谢孟媛初级文法》来学美国英语,就不叫pick up American English,而是你无意间学会了某些东西,比如你到法国出差的时候学会了一些法文,这就叫pick up some French,又如:
I picked up some Italian when I went to Rome on vacation.
第六题,根据意义,选must be,意思是“一定是”,表示肯定的猜测.should have been表示“本该是……(而没有做)”,shall be意思是“必须是”,这里的shall作情态动词表示命令,相当于must,但是它常常用于正式的法律文字,如:
Every member of the company shall not be late,
而might have been表示“可能是”,是对过去的一种不很肯定的猜测.
第七题,河流是被污染的,是被动关系,河流不会自己污染,所以排除A,由于这里我们强调河流过去受到污染,但是它对现在有影响(其影响为河流的水的味道很难闻),是跨在了两个时间之上(过去与现在),用现在完成时,选择D,具体可以看看土豆网上谢孟媛老师的初级文法中的现在完成时.
第八题,表示下个月要发生的事情,用动词不定式作定语,动词不定式作定语时可以表示将来的事情,而现在分词作定语则表示现在正在进行的事情,所以选择B.
希望我能帮助你解疑释惑.