题目内容
4.It's said that the coal on the earth ______ in 100years.( )| A. | is run out | B. | will be run out | ||
| C. | is come out | D. | will be come out |
分析 据说地球上的煤将在100年后耗尽.
解答 答案B
根据句中时间状语In 100 years"100年以后"可知是一个将来的时间,所以句子所使用的时态是将来时;可排除A,C,结合选项run out"用完,耗尽";come out"出现"根据常识煤炭是现在存在的物质不可能在100年后出现所以不符合逻辑,故排除D,再根据从句中的主语the coal 是谓语动词run out的承受者,二者是被动关系可知句子所使用的语态应该是被动语态;所以句子所使用的是一般将来时的被动语态.其构成为:will+be+及物动词的过去分词.故选B
点评 我们在做这类题型时,应根据时间短语判断所使用的时态是什么时态,然后再根据主语与谓语动词的关系判断使用主动语态还是被动语态.解答本题的关键是掌握一般将来时的被动语态的构成为:will+be+及物动词的过去分词,在本题中还要结合句子及动词短语的意思选择正确的谓语动词
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