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英语第三单元知识点 1. (1) allow doing sth.“允许干某事，准许” They don’t allow smoking here. They don’t allow drawing on the wall. (2) allow sb. to do sth.“允许某人干某事” They allowed her to go to the meeting. My mother will allow me to go to the cinema. 变成被动语态： She was allowed to go to the meeting. I will be allowed to go to the cinema. (3) allow sb. sth. = allow sth. to sb.“使某人得到?” He allows his son 100 dollars every month. = He allows 100 dollars to his son every month. 2. (1) make / have / let ? do ? get ? to do ? 都表示“使(要，让)宾语做?”，与宾语有主动关系 He made me stay with him. What can make you learn English well? We can’t have the car stop. I would have you buy a new bike. He couldn’t get the car to start and went by bus. You should get your friends to help you. After writing the letter, I got my brother to post it. (2) get / have + 宾语 + 动词过去分词 表示“主语使得别人做了某事”与宾语有被动关系 I’ll go and get my hair cut (过去分词). My watch is broken; I’ll get it mended. I’ll have my hair cut tomorrow. They have just had their car repaired. (3) 当make用于被动语态中时，不定式必须带to They made her stay for dinner. (动词原形) She was made to stay for dinner. She was made to wait for hours. 3. (1) own形容词“自己的”用在所有格后加强语气 I saw it with my own eyes. Please describe this picture in your own words. one’s own + 名词 = 名词 + of one’s own“某人自己的?” This is my own house. = This house is my own. That’s my (own) bike. = That’s a bike of my own. (2) own动词“拥有，所有” Many people own cars now. (3) owner名词“所有者，拥有人，主人” Who is the owner of this house? He used to own this car. = He used to be the owner of this car. (4) oneself表示“某人自己本身” You must look after yourself. (5) on one’s own“独立地，自愿地” I did that thing on my own. 4. (1) stop to do sth.“停下手头所做的事去做另一件事” He stopped to have a look at the boy. (2) stop doing sth.“停止做正在做的事” Why did he stop talking? (3) stop sb. from doing ? “阻止某人做某事” The workers had to work for hours to stop the ship from going down. (4) can’t stop doing sth. “忍不住?，无法不?” I couldn’t stop laughing when I heard it. 5. (1) need to do sth.“需要做某事” Your parents aren’t at home; you need to cook by yourself today. We need to wear cool clothes in summer. 注意：This pair of shoes needs mending. (表被动关系) (2) There is no need to thank me. need为不可数名词“需要，必要，缺乏” There is no need to worry about her. There is no need to set off so early. (3) There is no need (for sb.) to do sth. = It is not necessary (for sb.) to do sth.“没有必要?” There is no need to come so early. = It’s not necessary to come so early. There is no need for you to finish the work today. = You don’t have to finish the work today. (4) There is no need of / for ? There is no need of / for money. There is no need of / for hurrying. 6. (1) so + be / 助动词 / 情态动词 + 主语 表示“另一个主语也?” Lucy finished her homework, so did Lily. Li Mei was late. So were you. If you can finish it in time, so can we. If you go to the cinema tonight, so shall Tom speaks French. So do I. So does his brother. A: I went to the cinema yesterday. B: So did I. (2) Neither / Nor + be / 助动词 / 情态动词 + 主语 表示“另一个主语也不?” Bob didn’t come to school yesterday. Neither / Nor did Tom. If you don’t go, neither / nor will I. (3) so + 主语 + be / 助动词 / 情态动词 表示“主语确实?”赞成前一种说法 He is a clever boy. --- So he is. Tom hopes to be a teacher. --- So he does. 7. by + 时间 表示“不迟于，到?为止，到?之时” (1) By the end of last year we had planted 3000 trees. (2) We have learned about 1500 English words by now. (3) By this time tomorrow I will have finished the work. 8. concentrate “集中(注意力，精神等)，专心，全神贯注于?”常与介词on / upon连用 I must concentrate on my new job. I can’t concentrate upon my work when I’m hungry. The terrorists concentrated their activities on the big cities. Mike concentrates more on the computer than his studies. 9. (1) keep doing sth. “继续做某一相同的动作”之间无停顿，表示状态和动作的持续 He kept telling me to be careful on the trip. He kept standing there for an hour without moving. (2) keep on doing sth. “经过一段时间的间隙后继续做同一件事”强调动作的反复 He kept on teaching as though nothing had happened. They kept on working in the field, though it was raining. (3) keep ? doing sth.“使?处于做某事的状态” I’m sorry to keep you waiting for a long time. |
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来自： 昵称14301535 > 《待分类1》
