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普陀区高三英语第一学期期末质量抽查卷&语法题2,

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普陀区高三英语第一学期期末质量抽查卷&语法题2,
36.Don't waste lots of time looking for the answer to one qusetion.Leave it and come back to it later____.
a if it neccessary b if is necessary d if necessary
38.The young man waited in the park and after___seemed half an hour the girl finally came.
a that b it which d what
39.Within industries,companies are always trying to develop produces that are one step better than ___ of other companies
a one b that c those d all
40.Many representatives were in favor of his proposa; that a special committee____ to investigate the invident.
a were set up b was set up c be set up d set up
答案是DDCC,,,求详解,
普陀区高三英语第一学期期末质量抽查卷&语法题2,
36如果有必要的话,其实是if it is necessary 的一个省略形式
38这个是名词性从句中总出现的一个问题,after后面缺少一个宾语后面又缺少一个引导词,所以你就只能选择what,以后你再看到缺少两个成分的就用这个词.
39这个应该是products吧,产品,这个是一个对比,后面也应该是产品这个词,由于他已经出现过一次了,英语中为了避免重复就用一个代词来代替,又由于他是一个复数概念所以用those
40其实这句子中省略了should 后面应该是should be set up 这是因为从句是一个同位语从句,而其先行词就是proposal建议的意思,在英语中要求是从句中要用虚拟的情况,should 可以省掉,而且还是被动的关系,就选3了,查看语法书中虚拟语气关于宾语从句的虚拟.有一些类似的词语.