求高考英语单选几道题的解析
题目一: A. He didn't pass the exam because he ____ too hard. B. He didn't pass the exam because he worked ____ hard. C. He didn't pass the exam because he worked too hard.
答案:B
解析:本题考查形容词比较级的用法。因为句意是“他没有通过考试,因为他工作太努力了”,所以需要使用“too + 形容词/副词原级 + to + 动词原形”的结构。A选项中使用了过去式,C选项中使用了“too + 形容词比较级”,均不符合题意。
题目二: A. The teacher said that he would give us a break if we ____ the test. B. The teacher said that he would give us a break unless we ____ the test. C. The teacher said that he would give us a break until we ____ the test.
答案:A
解析:本题考查if条件句的用法。因为句意是“老师说如果我们通过考试,他就会给我们休息”,所以需要使用“if + 主语 + 动词过去式”的结构。B选项中使用了unless(除非),C选项中使用了until(直到),均不符合题意。
题目三: A. He was so tired that he ____ fall asleep. B. He was so tired that he couldn't ____ fall asleep. C. He was so tired that he couldn't help ____ fall asleep.
答案:C
解析:本题考查动词短语的用法。因为句意是“他太累了,以至于忍不住睡着了”,所以需要使用“can't help + 动词-ing”的结构。A选项中使用了“fall asleep”,B选项中使用了“can't + 动词原形”,均不符合题意。
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