题目内容
6．-What do you think has made Jane so worried？-_______ all the tickets for the stamp show．（ ）
| A． | Lose | B． | Lost | C． | Losing | D． | To lose |
分析 --你认为什么让简如此着急吗？--丢失了去邮票展的所有的票．
解答 答案C
根据what do you think has made…可知这里what对主语进行提问，答语用了一个省略句，补充完整为"__all the tickets for the stamp show has made Jane so worried．"动词词组作主语，要用动名词或动词不定式形式，排除答案A和B．一般情况下，不定式与动名词作主语可以互换，也常常可以用it充当形式主语，而把不定式和动名词放在句子的后半部分．但二者也有区别，不定式常常指某次具体的、将要发生的行为；而动名词则表示一般的、抽象的行为．这里"丢失了票"是已经发生的行为，不是将要发生的行为，排除答案D，故选；C．
点评 考查动名词和动词不定式的用法，理解句子的意思，判断动词在句子中的成份，作主语时，要用动名词或动词不定式，并且根据两者用法的区别，选择出正确答案．
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