高中语法过关训练十二非谓语动词课件.pptVIP

1. 在feel, hear, listen to, look at, see, notice, observe, watch, have, let, make 等词后的补足语中，不定式不带to。但是这些句子如果变成被动结构时，就必须带to。 例如： I often hear him sing the song. He is often heard to sing the song. 2. 动词不定式在介词but, except, besides 后面时，如果这些介词之前有行为动词do的各种形式，那么，这些介词后的不定式不带to，否则要带to。 例如： I have no choice but to wait. She could do nothing but cry. What do you like to do besides swim? 3. 作定语的不定式如果是不及物动词，或者不定式所修饰的名词或代词是不定式动作的地点、工具等，不定式后面须有相应的介词。例如： He is looking for a room to live in. There is nothing to worry about. Please give me a knife to cut with. 但是，不定式所修饰的名词如果是time, place或way，不定式后面的介词习惯上要省去。例如： He had no money and no place to live. I s that the best way to solve the problem? 4. 不定式作表语形容词的状语，和句中主语构成逻辑上的动宾关系时，不定式多用主动形式。例如： He is hard to talk to. (to talk to him) The book is difficult to understand. (to understand the book.) 但如果强调句中被动者时，变可用不定式被动式。例如： His handwriting is very difficult to be read. The box is too heavy to be lifted 5.在“there+be”的结构中，当说话人考虑的是必须有人去完成某件事时，不定式用主动形式；如果说话人强调的是事情本身必须完成，和被动形式。例如： There is a lot of work to do. (Somebody has to do the work.) There is a lot of work to be done. (The work has to be done.) 请注意下面两个句子的含义是不同的。 There is nothing to do.意为无事可做，感到十分乏味。 There is nothing to be done.意为某东西坏了，无法命名这恢复正常。 6. 下列及物动词之后通常跟动名词形式，如：enjoy, finish, mind, practise, suggest, miss, avoid, imagine, consider, delay, keep, appreciate, risk, dislike, escape, excuse, admit, feel, like, can’t help, be worth, can’t stand 等。 例如： Practise speaking more and listening more and you’ll improve your English. We can’t imagine living without water. 7. 一些词后跟动名词与不定式，含义不同，这类词有remember, forget, stop, try, regret, mean, go on等。试比较下列句子： I remember doing the exercise. I must remember to do it. The students stopped to talk. Stop talking. I tried not to go there. I tried doing it again. I mean to come early today. Missing the train means waiting for another hour. He went on walking along the street The teacher taught us some new words and went on to explain the text. 8.在allow, permit, for