人教版八年级下册英语Unit3知识点

人教版八年级英语下册Unit-1--Unit-3-单元知识点归纳free【动词】使……解脱，得到自由He could not free his arm.free from21. run out用完，用尽 When his water run out, he knew that he would have to do something to save his own life.物sth. tun out. 某物用尽了。

人sb. run out of物sth..人用尽了某物。

He run out of all his money last night.22.risk sth to do sth. 冒着...的风险去做某事 take a risk=take risks 冒险risk doing ...=take the risk of doing ...23. the importance of (doing) sth.（做）某事的重要性 We students should know the importance of (learning) English.importance n. 重要（性）， important adj.重要的，unimportant adj.24.decision 【名词】决定；抉择； make a decision to do sth.decide25. be in the control of …掌管，管理 The headmaster is in the control of this new school. be out of control无法控制，无法管理 be under control被控制住，在控制之中26. 【复习】mind意为介意，Would you mind my opening the window?27. give up (doing) sth. 放弃（做）某事，give up (playing) computer games；give up后可接名词、代词和动词ing形式，也可不接，如 Never give up easily.II. 重点短语1. have a fever 发烧2. have a cough 咳嗽3. have a toothache 牙疼4. talk too much 说得太多5. drink enough water 喝足够的水6. have a cold 受凉;感冒7. have a stomachache 胃疼8. have a sore back 背疼9. have a sore throat 喉咙痛10. lie down and rest 躺下来休息11. hot tea w ith honey 加蜂蜜的热茶12. see a dentist 看牙医13. get an X-ray 拍X 光片14. take one’ s temperature量体温15. put some medicine on sth. 在……上面敷药16. feel very hot 感到很热17. sound like 听起来像18. all weekend 整个周末19. in the same way 以同样的方式20. go to a doctor 看医生21. go along 沿着……走22. on the side of the road 在马路边23. shout for help 大声呼救24. without thinking twice 没有多想25. get off 下车26. have a heart problem 有心脏病27. to one’ s surprise使....... 惊讶的28. thanks to 多亏了；由于29. in time 及时30. save a/one’s life挽救生命lose one's life 31. get into trouble 造成麻烦32. right away 立刻；马上33. because of 由于34. get out of 离开;从……出萍35. hurt oneself 受伤36. put a bandage on sth. 用绷带包扎37. fa ll down 摔倒38. feel sick 感到恶心39. have a nosebleed 流鼻血40. cut his knee 割伤他的膝盖41. put her head back 把她的头向后仰42. have problems breathing 呼吸困难43. mountain climbing 登山运动44. be used to doing sth. 习惯做某事45. run out (of) 用完;用尽46. so that 以便47. so. . . that 如此… …以至于…48. be in control of 掌管;管理49. in a difficult situation 在闲境屮50. keep on doing sth. 继续或坚持做某事51. make a decision 做出决定52. take risks 冒险53. give up 放弃III. 重点语法【反身代词】英语中共有八个反身代词，在使用时应注意和它所指的相应的对象在人称、性别、数上保持一致。

Unit 3Section A1.Peter，could you please take out the rubbish?(1) Could you please+动词原形?其否定形式是＂Could you please+not+动词原形…?”。

肯定回答常用“Yes，sure./Sure. Certainly./Of course./ No problem/ With pleasure.”否定回答常用"I'm sorry, I can’t./Sorry, I can’t. /I’m afraid I can’t /I’m sorry, but...例Could you please hand out these books?Yes，sure./Sorry，I can’t. I have to sweep the floor.例题Could you please help me carry the heavy bag?A. It's a pleasureB. With pleasureC. You＇re welcomeD. It doesn’t matter(2)take out 带出去，取出，拔出，除掉动副短语Please take out a piece of paper. =Please take a piece of paper out.Please take it out.[拓展]take... out of...意为“把…从…取出/带出”。

Please take the books out of your schoolbag.(3) rubbish用作不可数名词，意为“垃圾;废弃物。

2 sweep the floor扫地(1) sweep( swept swept)此处用作及物动词，意为“扫;打扫”。

(2)floor用作可数名词，意为“地板”，通常指室内地面on the fl oor“在地板上”。

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)Could you please do the dishes?I’m afraid not. I have to attend a meeting now.拓展:表示请求的几种方式:Would you like to do sth? 你愿意做某事吗?Would you please do sth? 你能做某事吗?Would you mind doing sth? 你介意做某事吗?2.表示请求许可Could I do 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.Could I go out for a while? 我能出去一会吗?3.could 为can的过去式，表示过去的能力。

= was / were able toCould you speak English then？那时候你会说英语吗？4.表示推测：（1）后接动词原形,表示对现在或将来的推测(对将来的推测) We could go there this summer.今年夏天我们可能要去那. (对现在的推测) You could be right, but I don’t think you are.你可能是对的,但我并不认为你是对的.(2)后接动词的完成式,表示对过去的推测Where could he have gone? 他能到哪里去了呢?She couldn’t have left so soon.她不可能走这么早.5.表示建议you could…表示建议”你可以…”You could go to the station by subway. 你可以乘地铁去车站.Section A1. take out the rubbish把垃圾带出去. take out 意为”带出去;取出”,为”动副短语”.The dog is noisy. Can you take it out?拓展:take…out of…把…从..中取出I took the money out of my wallet to pay for the breakfast.rubbish: n. 垃圾;废弃物(为不可数名词)a rubbish bin 垃圾桶household rubbish 生活垃圾Don’t throw rubbish everywhere.4. sweep the floor扫地，sweep为及物动词，过去式和过去分词均为swept. He pick up the broom to help me sweep the floor.含sweep的常用短语:Sweep away 消灭;彻底消除Sweep up 打扫;清扫Sweep out 打扫干净;清扫干净Sweep aside 对….置之不理;全然无视5.floor 名词,地板.Why is my coat on the floor?Floor作名词还可意为”楼层”Our office is on the top floor.注意:在英式英语中the ground floor 指第一层,the first floor 指第二层.美式英语中,the first floor指第一层,the second floor 指第二层.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开车送某人到镇上13. need to do sth需要做……14. have to do sth不得不做……15. help out with a few things帮助做些事情16. could I at least finish watching this show?可以至少让我看完这个节目吗?at least至少,多指数量或程度上的最低限度。

考点一：短语总结：（一）take out 带出去；取出去代词作宾语，放中间take+宾语+out名词作宾语，方中间或者后面都可以例1：The dog is noisy.Can you take it out?例2：take out my pen/ take my pen out拓展：take.... out of : 把....从...中取出（二）sweep短语sweep away消灭；彻底消除sweep up 打扫；清扫Sweep out 打扫干净（三）throw v. 扔；throw--threw--thrown短语：throw away/out 扔掉throw to 扔....给throw down 扔下throw at 向....扔去（四）do one’s part in doing sth 尽自己的职责做某事play a part in 参与；在...中起作用；在...中扮演角色take part in 参与；参加（五）take care of = look after = care for 照顾take care = be careful = look out 小心；当心（六）do the dishes洗餐具fold the clothes 叠衣服clean the living room打扫客厅at least至少;起码do chores做家务make a mess 搞得--团糟be in a mess杂乱不堪;陷人困境come over 过来;来访as soon as ......就. hate doing/to do sth. 讨厌做某事a waste of浪费.... depend on依靠;信赖in fairness说句公道话as a result结果get a ride搭车as a result of =because of 因为；由于考点二：could的用法（1）--Could you please+动词原形？请你....好吗？用于提出要求或请求肯定回答：Yes,sure. / of course. No problem ....否定回答：Sorry,I can’t. I have to ....I’m afraid not.例题：—Could you please help me wash the car,Tony?--__________ I'm studying for my coming English test,now.A.That’s rightB. I’m sorryC.It doesn’t matterD. Not at all（2）Could I ....? 我能...吗？用于请求对方允许自己做某事例：Could I have a look at your new watch? 我能看一下你的新手表吗？肯定：-- Of course you can. Here you are.否定：-- I am afraid you can’t.（3）表示能力Could表示过去的能力，can表示现在的能力can--couldCould you speak English then？那时候你会说英文吗？例题：1.-- ______you give me a hand? I can’t move the box by myself.-- No problem.A.CouldB. ShouldC.MustD. Need2.Li Ming_______speak two languages when he was eight years old.A.mayB. canC. can'tD. could考点三：1.复数名词（短语）作主语用法表示时间、重量、距离、价格等的复数名词（短语）作主语，谓语动词一般用单数形式ten minutes/ four thousand dollars ..做主语例题：For kids of this age, two hours of sitting in a classroom______too long.A.isB.areC. wasD.were考点四：For one week,she didn’t do any housework and neither didi I.（1）neither/nor +be动词/助动词/情态动词+主语结构“也不....’’ 注意：Me neither. 不能说Me nor.（2）作代词，"两者都不"neither of 结构作主语时，谓语动词用单数Neither of them has a car. 他们两个都没有汽车。

人教版八年级下册英语第三单元知识点Unit 3 Could you please clean your room?一、重点短语1.go out for dinner出去吃饭2.stay out late在外面待到很晚3.go to the movies去看电影4.geta ride搭车5.work on从事6.cleanand tidy干净洁7.do the dishes洗餐具8.takeout the rubbish倒垃圾9.fold your/the clothes叠衣服10.sweepthe floor扫地11.make your/the bed整理床铺12.cleanthe living room打扫客厅13.no problem没问题14.welcomesb.欢迎某人e home fro m school/work放学/下班回家16.throw down扔下17.sit down坐下eover过来19.take sb.for a walk带某人去散步20.all the time总是21.all day/evening整日/夜22.dohousework做家务23.shout back大声回应24.walkaway走开25.a comfortable home一个舒适的家26.share the housework分担家务27.get some thing to drink拿点喝的东西28.insurprise惊讶地29.watch one show观看节目30.hangout闲逛31.pass sb.sth.把某物传给某人32.lend sb.sth.把某物借给某人33.get sth.wet使某物弄湿34.hate to do sth.讨厌做某事35.help sb.to do/with sth帮助某人干某事36.do chores做杂务37.bring a tent带顶帐篷来38.buy some snacks买些小吃39.invite sb to a party邀请某人参加聚会40.go to the store去商店41.make sb.do sth使某人做某事42.enough stress足够的压力43.a waste of time浪费时间44.inorder to为了45.get goodgrades取得好成绩46.minddoing sth.介意做某事47.developchildren’s independence发展孩子的独立性48.dependon依赖49.do ones part in(doing)sth.做某人分内的事50.look after/take care of 照顾；51.finish doing sth.完成做某事二、知识点解析1.“Could you please do sth.?”的答语以下两种情况：接受请求时可以用Yes,sure./Sure./Of course./Certainly./No problem./My pleasure./It’s my pleasure./With pleasure.等来回答拒绝请求时可以用Sorry./Sorry,I can’t.等来回答，还可以用Ihave to do sth.来解释其否定句是:“Could youplease not do sth.?”2.有关“家务劳动”有关的短语：takeout the rubbish/trash倒垃圾foldone’s clothes叠衣服sweepthe floor扫地cleanthe room打扫房间makeone’s/the bed铺床dothe dishes/wash the dishes洗餐具3.throw down扔下throwat扔向，掷向throw away扔掉例题：Recycling is good,so don’t__________bottles or newspapers.A.find outB.hand ine upD.throw away4.the minute表示“一…….就……”,相当于as soon as.(引导时间状语从句)e.g.:I’ll tell himthe minute he gets there.5.常见time的短语：all the time一直，总是at times不时，有时in time及时on time按时forthe first time第一次in no time立刻at any time随时bythe time到...的时候atthe same同时have a good/great/wonderful time玩的愉快例题：---Hurry up.It’s almost time for school.---Don’t worry.We are sure to be atschool__________.A.at timesB.on timeC.all the timeD.by the time6.as….as表示“和……一样”，之间要用形容词或副词的原级。

Unit 3 Could you please clean your room?【重点短语】1.wash/do the dishes 洗餐具2.take out the trash 倒垃圾3.fold clothes折衣服4.sweep the floor 扫地5.make the bed 整理床铺6.clean the living room 打扫客厅7.throw down 丢下8.in front of 在......的前面9.all day 整天10.share housework分摊家务11.do chores 做家务12.help sb. with sth.帮助某人做某事13.have to 不得不14.go to the movies 去看电影15.lend me some money 借给我一些钱16.no problem没问题17.invite...to...邀请...去... 18.enough stress足够的压力19.a waste of 浪费...... 20.spend...on /spend ...doing sth.花费....... 19.in order to 为了20.get good grades 取得好成绩21.provide sth. for sb.=provide sb. with sth. 为某人提供某物22.mind doing介意做....... 23.depend on取决于,依赖24.develop children’s independence发展孩子们的独立性25.take care of =look after照顾26.do one’s part尽自己的一份力27.as a result结果28.agree with sb.同意某人的观点29.keep it clean and tidy 保持它干净整洁30.the idea of fairness 公平的想法31.do housework=do chores 做家务32.go out (for) (为......)外出33.stay out待在外面；不在家34.work on从事；创作35.help out with...帮助做......36.throw down扔下37.sit down坐下e over顺便来访；过来39.take...for a walk带......去散步40.hang out 闲逛41.pass sb. Sth.=pass sth. to sb.递给某人某物42.get into进来43.fall ill 生病44.be angry with sb.生某人的气45.be angry about sth.因某事生气46.at least至少47.in front of 在......前面48.in surprise吃惊地，惊讶地49.as soon as立刻；一......就...... 50.as a result 结果51.a waste of time浪费时间52.all the time频繁；反复【重点句型】1.—我可以跟朋友出去吃晚饭吗？—当然，那是可以的。

人教版八年级下册英语Unit 3 单元知识点总结Section Augh v. & n. 笑We all laughed loudly when she made a joke. 她说了个笑话，我们都大声笑起来。

We all laughed at his joke. 听了他的笑话我们都笑起来。

He laughs best who laughs last. 谁笑在最后，谁笑得最好。

/不要高兴得太早。

（与at连用）嘲笑Don’t laugh at him. 别嘲笑他。

People have often laughed at stories told by seamen. 人们常常嘲笑海员所讲的故事。

Everyone laughed at his foolish antics. 大家都笑他那种愚蠢的滑稽动作。

N. 笑；笑声We had a good laugh at his joke. 我们被他的笑话逗得哈哈大笑。

2. though conj. 虽然；纵然；即使；尽管= althoughThough it was raining，he went there. 虽然当时正下着雨，他还是到那里去了。

Though he was poor he was happy. 虽然他很穷却很快乐。

注意：不能受汉语的影响，在though引导的从句后使用but。

如：Though he was poor，but he was happy.（误）though adv.. 不过，可是，然而，常用于句末，用逗号隔开。

Jim said that he would come, he didn’t , though.English is difficult to learn. I like it,though.英语难学，不过我喜欢它。

3. quietly轻声地，安静地，平静地quiet轻声的，安静的，平静的The students walked to a quiet place.同学们向一个安静的地方走去。

人教版丨初中英语八年级下册Unit 3知识点精析（下）+课文注释1.invite my friends to a party邀请我的朋友们来参加聚会要点精析invite为及物动词，意为“邀请”。

invite sb.to do sth.意为“邀请某人做某事”。

例：We invited all our friends.我们邀请了我们所有的朋友。

Kate invited me to go to the movies with her.凯特邀请我和她一起去看电影。

知识拓展invite 的名词形式为invitation,意为“邀请；请帖”。

例：Thank you for your kind invitation.谢谢你的盛情邀请。

2. I do not understand why some parents make their kids help with housework and chores at home.我不理解为什么一些父母让他们的孩子在家帮忙做家务。

要点精析make their kids help with housework and chores 是 make sb. do sth.结构，此结构意为“让/使某人做某事”。

例：This good news made her laugh happily.这个好消息使她开心地笑了。

3.Housework is a waste of their time.(做）家务是浪费他们的时间。

要点精析a waste of...意为“浪费……”，其中waste是名词，意为“浪费；滥用”。

例：Playing computer games is a waste of time.玩电脑游戏是浪费时间的。

知识拓展waste还可作动词，意为“浪费”。

例：Don't waste your money on clothes.别把你的钱浪费在衣服上。

4. They should spend their time on schoolwork in order to get good grades and get into a good university.为了取得好成绩，进入一所好大学，他们应该把他们的时间花在学业上。