八年级英语下册Unit3-课文讲解+知识点+练习.docx

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1、1Unit3 Could you please clean your room?Section A1重点短语go out for dinner出去吃饭stay out late在外面待到很晚go to the movies 去看电影get a ride搭车work on从事finish doing sth.完成做某事clean and tidy干净整洁do the dishes 洗餐具take out the rubbish倒垃圾foldyour/the clothes叠衣服sweep the floor扫地make your/the bed整理床铺clean the living room打

2、扫客厅no problem没问题welcome sb. 欢迎某人come home from school/ work放学/ 下班回家throw down扔下sit down坐下come over 过来take sb. for a walk带某人去散步all the time一直;总是all day/evening整曰/夜do housework做家务shout back大声回应walk away走开.share the housework分担家务a comfortable home一个舒适的家in surprise惊讶地get something to drink拿点喝的东西watch on

3、e show观看一个节目hang out闲逛pass sb. sth. 把某物传给某人lend sb. sth. 把某物借给某人get sth. wet使某物弄湿hate to do sth.讨厌做某事do chores 做杂务help sb. (to ) d o /with sth帮助某人干某事bring a tent带顶帐篷来buy some snacks 买些小吃go to the store 去商店invite sb. to a party邀请某人参加聚会make sb. do sth.使某人做某事enough stress 足够的压力waste of time 浪费时间in orde

4、r to为了get good grades 取得好成绩mind doing sth.介意做某事depend on 依赖;依靠developchildreninsdependence 发展孩子的独立性look after/take care of照顾；照看do one s part in (doing ) sth做.某人分内的事2二、重点句型5. For one week, she didnot do any1. Could you please.do sth. ?housework and neither did I.Could you please clean your room?你整整一周

5、， 她什么家务活都不干了， 能整理一下你的房间吗？我也一样。2. I have to do some work. 我必须干些6. My mom came over as soon as I sat活。down in front of the T V .3. Could I+ do sth. ?我一在电视机前坐下，我妈妈就过Could I use your computer?我可以用来了。一下你的电脑吗？7. hate + ( to do/ doing) sth.4. She won t be happy if she sees thisI hate to do chores. mess.如果她

6、看到这样乱七八糟的话，她会不高兴的。1. Peter ,could you please take out the trash?彼得，你能把垃圾倒了吗？【解析 1】Could you please 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.【常用答语】肯定回答：Sure./ Of course./ Certainly./No problem. 否定回答： Sorry , I cant【解析 2】take out 取出（ v+ adv）【注】: 跟代词做宾语，代词放中间；

7、跟名词做宾语，可放在中间，也可放在后边【短语】 take out the trash倒垃圾take a walk散步 take away拿走，取走take back 收回take place 发生take off脱下； 起飞The gift is in the box. You can take it out.2. Can you do the dishes？.那你可以洗盘子吗？ do the dishes 洗碗【结构 1】do the +名词：do the dishes/ laundry洗餐具/衣服【结构 2】do the +动词-ingdo the cleaning 打扫卫生【结构 3】d

8、o one s 名+ 词do one s housework/ homework做家务 /家庭作业【结构 4】do some +动词-ingdo some reading/ shopping读写书/ 购物3. Could I at least finish watching this show?至少让我看完这个节目可以吗？【解析 1】Could I do a sth?我可以做 . 吗？用于表达请求，语气比较委婉。Could Igo out with my classmate this weekend?【解析 2】at least 至少，多指数量或程度上的最低限度。(反) at most 至少，

9、不超过23【解析 3】finish v结束；完成 finish doing sth做完某事4. I think two hours of TV isenough for you!我觉得你看两个小时的电视已经足够了。【解析 1】two hours of TV表示时间、距离、金额、度量等词语作主语时，通常被视作整体，谓语动词用单数形式。How time is flies! Three years(be) really a short time.3作 形 容足够的，充分的（在句中作定语或表语）【解析 2】enoughI don t have enough money with me.作 副 词足够；

10、充分（放在形容词；副词后）The river is deep enough for swimming.【记】 Mr. Smith has enough money ,but he isnkind et nough to help others.【注意】 enough 修饰名词时，置于名词前；修饰形容词时，置于形容词之后。5. Could you take out the rubbish,fold the clothes and do the dishes?你能把垃圾倒了。把衣服叠好，再把碗洗了吗？take的用法：【解析】 take out拿出；取出拿；取Please take some boo

11、ks to the classroom.take吃；喝；服用乘（车；船等）Take this medicine three times a day.They usually take the bus to work.花费（时间； 金钱）It takes me two hours to do my homework every day.【拓展】 take构成的短语：take a walk去散步take a rest 休息take care of照顾take off脱下；起飞take up占据take down拿下take one s tim不e 急；慢慢来take one s temperatu

12、r量e 体温6. The minute I sat downin front ofthe TV, my mom came over.我刚坐在电视机前面，我妈妈就过来了。【解析 1】the minute = as soon as一.“. 就.there.【解析 2】 in front of”Please write to me the minute you get44【辨析】in front of指在物体外部的前面There is a bike in front of the classroom.in the front of指在物体内部的前面Our teacher is standing in

13、 the front of the classroom【记】 The driver satThe policeman stood【注意】有 the 无 the 区别大：at table吃饭；进餐the car. the car.at the tabel在桌边in hospital住院in the hospital在医院（不一定看病）【解析 3】come over 过来【拓展】 come 短语：come across（偶然）发现come back 回来come up with 想出come true 实现come down 下来come from=be from来自 ,出生于come in/in

14、to进入 ,进来come on 赶快,加油come and go 来来去去come up 上来come along 走吧 ,过来 ,快点come out 出来， (花)开， (照片 )冲洗出来7. You watch TVall the timeand never help out aroundthe house!你总是看电视，从不帮忙做家务！【解析】 all the time【拓展】与 time 相关的短语：= always一直；总是on time按时in time及时at the same time 同时form time to time偶尔the first time第一次at time

15、s有时time and time again一再；经常last time 上 次 next time下次8. Im juassttired as you are!我和你一样累！【解析】 as.as .和.一样 .【注】比较级倍数表达句型为：倍数 +as+形容词、副词原级 +as+比较对象【解析】考查主谓一致和动词时态。 题干主语中心词为介词短语 as well as之前的 musician， 故谓语使用单数9. For one week , she did not do any housework andneither did I .5一周的时间，她不做任何家务，我也不做。【解析】 neith

16、er + 助动词 /系动词/情态动词 +主语“某人（主语） 也不” neither 两者都不 neithernor既不也不 ,5连接两个词做主语，谓语动词由后一个主语确定Neither Tom nor Jim is a student 表达“ 也不” 则用 “Neither /Nor + be / V助 / V 情 +主”10. The next day , my mom came home from work tofind the house clean andtidy.第二天，妈妈下班回到家后发现房间很干净、整洁。【解析】 find + 宾语+宾语补足语【注】 find foundfoun

17、dv 寻找 (1) find sb. doing sth发现某人做某事(2) 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11. She askedin surprise .她吃惊地问道。【解析】 in surprise惊奇地；吃惊地surprise v使吃惊surprising adj.令人吃惊的 surprised adj.吃惊的to one s surpris使e 某人吃惊的是in surprise吃惊地 be surprised at对感到吃惊12. “ I m do sorry, M

18、oI mfin.ish understand that weneedto share the housework to have aclean and comfortable home.” I repli对ed不.起，妈“妈。我终于理解为了拥有一个干净、舒适的家我们需要共同来分担家务。 ” 我回答说。【解析 1】needv需要用于肯定句，是实义动词。(1) 人做主语， sb. need to do sth 某人需要做某事(2) 物做主语， sth need doing sth= sth need to be done用于否定句或疑问句，是情态动词)1()2(needn t = don t ha

19、v没e有to必要need ,must 引导的一般疑问句，肯定会的用must,否定回答用 neednt Must I go there now? Yes，you must/No, you needntshare sth 分享或共用某物 share sth with sb.与某人分享某物13. CouldIhang out withmy friendsafterthe movie?看完电影后我能和朋友们一起闲逛吗？【解析】 hang out闲逛hang up把 悬挂/挂起14. Could you please pass me the sal?t 你能把盐递给我吗？【解析】 passv给；递；走过

20、；通过pass sb.sth 把某物递给某人 Pass on 传递Please pass the paper on to the other students. v 通过；路过 I pass your home. v 通过（考试） ；及格 Tom can pass his math exam.615. Could Iborrow that book? 我能借下你那本书看吗Could you lend me some money? 你能借我一些钱吗？【解析】 borrow /lend/keep(1)borrow借入 ,与 from连用，尤指主语 “【借进来 ”】borrow sth from s

21、b.从某人那里借某物 You can borrow the book from the library. (2)lend借出 ,与 to搭配 【指借出去】 lend sb sth=lend sth to sb把某物借给某人He doesn t want lteondhis book to others.(3) keep 保留，保存（延续动词，可以与表示一段时间的状语连用）【指借一段时间】6【记】 I want to Because Tom hada bike from my friend but he didn it for two days.tit to me,16. I cut my fi

22、nger and Itryinmg not to get it wet. 我的手指割伤了，伤口不能弄湿。【解析】 try (not) to do sth努力（不）做某事。tryv试图，设法，努力【拓展】 (1)try on试穿(2) try to do sth努力做某事 【侧重尽力做】(3) try doing sth试图做某事 【侧重尝试做】(4) try one s best to do sth= do ones thbe尽st某to人d最o 大努力做某事17. I hate to do chores. 我讨厌做家务。【解析】 hate to do sth讨厌做某事 , 表示某次具体行为或

23、动作。I hate to trouble him. hate doing sth 不愿意做某事 表示经常或习惯性行为或动作。She hates smoking in her room.18. Could Iask you to help mewith some chores then?那我能请求你帮我做些杂活吗？【解析】 ask sb. to do sth 要求某人做某事。ask for请求，要某物ask sb. about sth向某人询问关于某事(1) ask sb. for help向某人请求帮助ask 构成的短语： 短语ask sb. to do sth ask sb. not to

24、do sth ask sb for sthask for help(2) ask sb. (not) to do sth 请求某人做某事含义请某人做某事 不让某人做某事向某人要某物 寻求帮助I. filnl ishmy homeworkwhile you help me with the dishes.当你帮我洗盘子的时候，我将完成我的家庭作业。【解析 1】finish doing sth完成某事7【解析 2】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。【解析 3】help sb. with sth.在某事上帮助某人。【注】 help v

25、 帮助 helpful adj. 有帮助的 h1() elp sb. do sth. =help sb. with sth.帮助某人做某事(2)with the help ofsb.=with one s h在elp某人的帮助之下 (3)without the help of没有在的帮助之下单选练习【 湖北黄冈 3】40.Could I borrow your camera?， but please give it back by Saturday.7A. I am sorryB. Of courseC. Certainly notD. No, thanks【潍坊】 3. I have two

26、 sisters, butA. allB. neitherof them is a teacher.C. bothD. none临沂 1】21. When an earthquake happens, and you are outdoors, you should go to an openarea asA. quicklyas possible.B. quietlyC. loudlyD. slowly【玉林 1】56. Liu Ying is good at singing. She singsA. as well asB. as good asC. as better asthe fam

27、ous singer, CoCo.D. as the best as【浙江绍兴】 6. Which magazine d o you like better, Crazy Reading or Teens space?I likeA. noneof them. They are useful for English lessons.B. neitherC. allD. both【十堰】 D27. Which do you prefer, a CD player or a walkman?A. Both. I prefer a portable computer.B. EitherC. None

28、D. Neither【山东菏泽 1】15.Sir , could you please put out your cigarette? This is a smoke-free（无烟的） school.mindA. Imsorryabout this.B. No problemC. Sure, Idlove toD. Never【鞍山】 5. The teachers in that school speak either English or French, or even.Thats so cool!A. allB. bothC. neitherD. none30【福建 2】23. The

29、 famous musician, as well as his students,to8perform at the opening ceremony of theA. were invitedB. was invitedTaipei Flower Expo.C. have been invitedD. has been invited【内蒙古呼和浩特】 Tom , would you pleasethe box? Its for your sister.A. not openB. don t openC. not to openD. to not open【黑龙江大庆】 6. You ha

30、d better hurr y or well be late forthe plane. The plane will in a few minutes.A. take upB. take downC. take offD. take away【江苏南通 4】Now all of us exercise atleasthour a day and outside school.A. the; aB.a; anC.不填； aD. 不填； an【宁夏中考 1】 You maythe book for two weeks.A. keepB. borrowC. lendD. buy【常州中考】 He

31、 speaksEnglishFrench. Instead, he speaks German.A either; orB not only; but alsoC both; and【西宁中考 2】 Although you like the book, you may onlyA. borrowB. keepC. lendD. stay.D neither; norit for two weeks.【湖北恩施 2】 May Iyour dictionary? Sorry. Li Leiit for five days.lentA. lend; borrowedB. borrow;has ke

32、ptC. borrow; has borrowedD. lend; has【江西 1】26.There are a small number of people involved, possiblyA. as few asB. as little asC. as many astwenty.D. as much as【昭通】I was very surprised when the alien went into a souvenir shop.A. excitedB. amazingC. relaxingD. amazed【安徽 1】33. Its said that the power p

33、lant is nowA. twice asB. as twiceC. twice muchlarge as what it was.D. much twice【浙江丽水】25. The great writer has written many stories for children. It is said that a newone willA. go outat the end of this month.B. come outC. look outD. run out【浙江宁波】24. Scientists are trying their best tocalled H7N9.wa

34、ys to treat the terrible diseaseA. come up withB. look forward toC. talk aboutD. give up【山东东营】 Tom didnt go to schoolthis morning because he overslept.A. at onceB. on timeC. by accidentD. at present31【四川雅安 4】8. Can you finishthese books before 10 oclock? Yes, Ican.9A. to readB. read【达州】 8. Do you kn

35、ow the girlC. readsis standingD. Readingthe tree? Yes, she is my friend, Zhang Ying.A. that, in the front ofB. whom , underC. who, in front ofD. which, behind【黄石中考 1】I can t play the piano ,and.A. neither can my sister eitherB. my sister can t , too C. so can t my sister D. can my sister,【北京中考】 Our

36、teacher often asks usquestions in groups.A. discussB. to discussC. discussingD. discussed【广东中考】 If Nancythe exam , she will go to Australia for English study.A. passB. passedC. passesD. will pass【山东德州】 When you have difficulty, do remember to one. Two heads are better thanA. make a decisionB. give u

37、pC. ask for helpD. give advice【重庆中考】 Mr. Li asks the studentsin the river, because its too dangerous.A. swimB. to swimC. not to swimD. to not swim【无锡中考 4】 Dont throw away the waste paper, It needsso that it can be reused.A. to destroyB. destroyingC. to collectD. collecting【广东中考 2】 I didnt hear you c

38、ome in just now. That s good. We triedany noise, for you were sleeping.A. not makeB. not to makeC. to makeD. Making【菏泽中考】A. Whenthe children have fun, parents can take dance lessons on the beach.B. IfC. WhileD. Once【浙江温州 2】Ann often helps meA. forB. withC. onmath after school.D. by【雅安中考】 Can you fin

39、ishA. to readB. readthese books before 10 o clock?Yes, I can.C. readsD. reading【杭州中考】 Sally took a photo of her friends while theycomputer games.A. play()B. are playingC. have playedD. were playing your help, we couldnt catch the thief.A. WithB. UnderC. ForD. Without()I don t like rainy days. . Rain

40、y days always make me sad.5410A. Neither do I()We should tryA. eatB. to eatB. So do IC. Neither I doD. So I do much fruit.C. eatingD. eats() If you have difficulty in learning English, you should ask your teacher or your classmates help.A. forB. ofC. inD. on()The young shouldthe oldadvice at work.A.

41、 ask; forB. ask; toC. ask for; /D. asks; /() The first one wasn t bad.A. So wasn t the second B. So the second was C. Neither wasnsecondt the second D. Neither was th() She foundhard to finish the work by herself.A. thatB. it sC. itD. this()his surprise, she succeeded in climbing up the high mountain.A. AtB. ToC. InD. On()Youto the meeting this afternoon if you have something important to do.A. needn t to comeB. don t need come C. don t need comDin.ngeedn t come（） His teeth hurt badly. The dentistA .take out itB. take out them.C. take it outD .take them out() Lisa,