题目内容
10.The cleanershave swept(sweep)the street and it is quite clean now.分析 清洁工已经打扫了大街,现在街上很干净了.
解答 本题考查的是现在完成时态的一种用法,表示过去发生的事对现在造成的影响和结果,本句话中 it is quite clean now就是已经打扫的结果,故用
have swept.
点评 每一种特定的时态都有其相应的时态标志,寻找其时态标志并加以认真分析可以巧解时态试题.所谓时态标志,指的就是某些特定的词、短语或句式,在通常情况下要与某种特定的时态连用,同学们在做题时若能充分利用这些时态标志,同时注意结合句子语境,就可很快得出正确答案.
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