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 to
Section A
1. 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 B
1.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 sth 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
