1、高考英语语法专讲:动词不定式一.相关知识点精讲: 1. 不定式作补语 1) 有些有动词+宾语+不定式的结构。例如: advise allow cause challenge command compel drive 驱使 enable encourage forbid force impel induce instruct invite like/love order permit make let have want get warn persuade request send tell train urge例如; Father will not allow us to play on th
2、e street. 父亲不让我们在街上玩耍。 The officer ordered his men to fire. 长官命令士兵开火。 注意:有些动词如make,have,get,want等可用不定式作做宾补,也可用分词作宾补。现在分词表达主动,也表达正在进行,过去分词表达被动。 2) 有些有动词+宾语+不定式的结构,不定式的动词往往是be,不定式一般可以省去。例如: consider find believe think declare(声称) appoint guess fancy(设想) guess judge imagine know 例如: We believe him to b
3、e guilty. 我们相信他是有罪的。 We know him to be a fool. 我们知道他是个笨蛋。(to be 不能省去) 典型例题 Charles Babbage is generally considered_ the first computer. A. to inventB. inventing C. to have invented D. having invented 答案:C. 一般没有consider+宾语+be以外不定式的结构,也没有consider+宾语+doing的结构,排除A、B、D。consider用动词be以外的不定式作宾补时,一般要求用不定式的完成式,故选C。 3) 有些动词可以跟there +to be的结构。例如: believe expect intend like love mean prefer want wish understand 例如: We didnt expect there to be so many people there. 我们没料到会有那么多人在那里。 You wouldnt want there to be another war. 你不至于想让另外一场战争发生吧。