8. ________ the employees' working efficiency, the supervisor will allow them to have a coffee break. (2006上海春)
A. Improving B. To improve C. Having improved D. Improved
9. I've worked with children before, so I know what ________ in my new job. (2000全国)
A. expected B. to expect C. to be expecting D. expects
10. Robert is said ________ abroad, but I don't know what country he studied in. (1999全国)
A. to have studied B. to study C. to be studying D. having been studied
答案及解析
1-5 ABABC 6-10 ACBBA
1. 句意:在我外出期间如果有人来访,请让他或她给我留个信儿。
【分析】“让某人做某事,题中宾补是不带to的不定式,根据不定式作宾补时,省略to的情况,四个选项中只有have后接不定式作宾补时,可省略不定式符号to。
2. 句意:应用新技术的目的是使生活变得更容易,而非更困难。
【分析】整个句子是个系表结构,主语是表示目的的purpose,表语要用不定式。尽管通常两个以上不定式并列时,后者的to常可省略掉,但由于作表语的两个不定式之间存在对比关系,所以后者的to不可省略;同时根据不定式否定的规则,在不定式符号to前加not就可以,所以选B。
【高考语法必备:不定式用法小结】相关文章:
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