Unit3 Could you please clean your room?一．情态动词could 的用法1.提出礼貌的要求Could you please (not) do sth ?请你（做）......好吗？用于提出请求，希望得到对方的肯定回答，说话的语气比较客气委婉。

Could 不是can的过去式，是委婉、礼貌的说法。

回答用can.肯定回答：Yes,sure./ Yes, I can./Of course,I can./ Certainly./No problem./ With pleasure .否定回答：Sorry , I can’t / I’m afraid I can’t. I have to …,I’m going to…(说明理由)2.表示请求许可Could I do a sth? 我可以做......吗？肯定回答：Yes, you can ./ Yes ,please / Of course / Certainly./ No problem.否定回答：Sorry , you can’t / I’m afraid you can’t.3.could 为can的过去式，表示过去的能力。

= was / were able toSection A1. take out the rubbish把垃圾带出去2. do the dishes = wash the dishes洗碗碟3. fold your clothes折衣服4. sweep the floor扫地5. make your bed整理床铺6. clean the living room打扫起居室7. do some washing/ shopping/ cleaning洗衣服/ 购物/ 做清洁8. go out for dinner出去吃晚饭9. go to the movies去看电影10. stay out late/ until nine呆到很晚/ 呆到9点钟11. get a ride撘车12. give sb a ride to town开车送sb到镇上13. need to do something需要做……14. have to do something不得不做……15. help out with a few things帮助做些事情16. at least至少,多指数量或程度上的最低限度。

(反) at most 至多，不超过17. finish doing something完成做……18. two hours of TV 两个小时的电视表示时间、距离、金额、度量等词语作主语时，被视作整体，谓动用单数。

19. be/ come back from shopping购物回来20. any minute/ second/ moment now随时21. be angry with…对……生气22. solve the problem解决问题23. throw down扔下，随手丢下。

throw at向…扔去（恶意）throw to …扔给throw away扔掉24.the minute……/ as soon as… / the moment …一…….就……(引导时间状语从句，主将从现)e over过来，顺便来访26. take the dog for a walk= take a walk with…遛狗27. reply angrily生气地回答28. all the time一直all day一整天all evening整晚29. shout back吼回去talk back 顶嘴30 neither / nor +助动词/be动词/情态动词+主语“某人也不”neither两者都不neither …nor…既不…也不…(就近原则) neither of us我们两个都不31 in surprise惊讶地32 find +宾语+ adj / n. / prep短语find sb. doing sth发现某人做某事find it + adj. + to do sth发现做某事很……◆find it difficult/ hard to do sth 发现做某事很困难33. share the housework分担家务share sth with sb .和某人分享某物34. hang out with sb和某人一起闲逛hang up把......悬挂/挂起35. pass sb sth= pass sth to sb把某物递给某人Pass on 传递36. borrow s from sb从某人那里借某物37. lend sth to sb = lend sb sth 把某物借给某人keep……for +一段时间：借…一段时间38. hate to do / doing sth讨厌做……39.try (not) to do sth努力（不）做某事。

try one’s best to do sth= do one’s best to do sth 尽某人最大努力做某事try on 试穿try to do sth 努力做某事【侧重尽力做】try doing sth 试图做某事【侧重尝试做】40. while conj. “在……期间；当……的时候”While 引导的时间状语从句的谓语动词只能是延续动词.(进行时) Section B1.invite v → invitation n邀请(1) invite sb. to do sth邀请某人做某事(2) invite sb. to +地点邀请某人去某地2. enough stress from school来自于学校的足够的压力under the stress of …在…的压力之下3. a waste of time浪费时间waste v “浪费” waste time/money on sth / (in) doing sth 在。

浪费时间/金钱4. 人：spend…… on s th 人：pay ……for sth 物：sth cost sb +金钱(in) doing sth It takes sb +时间to do sth.5. in order (not) to do sth为了做……6. get into a good university进入好大学7. there is no need for sb to do sth对于某人来说没必要做……8.provide sth. for sb.= provide sb. with sth.为某人提供某物（为应急等做好准备而“提供；供给”）offer sb. sth. = offer sth to sb. 侧重表示“愿意给予”offer to do sth 主动提出干某事Supply sb. with sth=supply sth. to sb. 定期“ 供应” , 强调替代或补充所需物品9. depend on …依靠……依赖，由…而决定10. develop children’s independence 养成孩子的独立（习惯）→development→ developed / developing11. the idea of fairness公平意识12. have no idea = don’t know 不知道13. fall ill生病14. grades drop成绩下降15. as a result因此，结果as a result of …由于……作为……的结果16. It’s fair/ unfair for sb to do sth 对于某人来说，做……是（不）公平的。

17. get something to drink买饮料18.be careful with… 小心对待……19. a few other things另处几件事20.Do one’s part (in) doing sth .尽自己的职责做某事21.the earlier...the better…越早……越好…….【模拟试题】一、英汉互译。

1. play with ___________2. have a test ___________3. do chores ___________4. take out ___________5. make the bed ___________6. sweep the floor ___________7. 从……借___________ 8. 遛狗___________9. 生气___________ 10. 照顾___________11. 邀请某人到……___________ 12. 忙于/从事___________13. 洗餐具___________ 14. 做饭___________二、根据要求答题。

1. Could you help me clean the living room? （作肯定回答） _____________, ____________________.2. Thanks for taking care of my dog. （变同义句） _________________ for ________________ my dog.3. Remember to clean the bed. （改为同义句） ________ ________ to clean the door.4. Can you lend your pen to me? （改为同义句） Can ________ ________ your pen?5. I like to wash the plates because it’s relaxing. （就划线部分提问） ________ ________ you ________ to wash the plates?三、用could, can, may, must, needn’t填空。

1. A: ________ you answer the question in English?B: Sorry, I ________. ________ I answer it in English?A: No, you ________. You ________ answer it in Chinese.2. A: ________ I ask a question? B: Yes, you ________. But you ________ wait, a minute.3.A: ________ I use your eraser, Bill?B: Sorry. I don’t have one. Ask Mary. She _________ have one.4. A: ________ you help me do the shopping. B: OK, Sure.5. A: ________ you sweep the floor? B: But I ________ finish my homework first.四、单项填空。