1、-_八年级英语下册各单元知识点汇总Unit 1 Whats the matter?一、基础知识1. What s the matter? 怎么啦？出什么事情了？【解析】matter/ mt(r) /n.问题；事情 What s the matter with you?= Whats the trouble with you? = What s wrong with you? 你怎么了？【注】： matter 和 trouble 为名词， 其前可加 the 或形容词性物主代词，wrong 是adj. 不能加 the【用法】用于询问某人有什么病或某人遇到什么麻烦、问题其后跟询问对象时， 与介词 w
2、ith 连用。即：Whats the matter with sb.? = Whats your trouble? = Whats up? = What happens to sb.? Whats the matter with you ? I have a bad cold.2. I had a cold.我感冒了。 have a cold=catch a cold=have the flu 感冒 have a fever 发烧 have a cough 咳嗽 have a stomachache 胃疼，肚子疼 have a toothache 牙疼 have a headache 头疼3.
3、 身体部位+ache（疼痛）构成新的复合词stomach+ache=stomachache head+ache=headache tooth+ache=toothache back+ache=backache 后背痛4. much too+ 形容词，意为 太. ，too much+ 名词，意为 很多，大量 。5. enough【形容、副词 】足够的/地，enough 放在名前后，形副后。good enough 足够-_好，enough money=much money6. lie down 躺下， lie 躺，躺着，过去式 lay；lie 说谎，过去式 lied7. maybe “或许” ，常
4、用于句首，表示可能性，后加句子。Maybe you are right.may be，是情态动词+be 的结构，意为“ 可能，也许” ，后加名词、代词或形容词。He may be angry.sound like+名词代词和从句：It sounds like you dont know the truth. It sounds like a good idea. sound+形容词， “听起来，好像”，The music sounds nice.9. need 需要，实义动词 need+名词，需要某物；need to do sth.需要做某事，主语通常是人，表示人主动的动作：You need
5、to listen carefully during class.need doing sth.主语通常是物，表示被动的动作：Your dirty clothes need washing.10. get off (the bus) 下（公交车） get on 上车11. agree 同意，赞同； agree with sth. 同意某事 如：I agree with that idea.agree to sb. 同意某人的意见 如：I agree to LiLei.12. trouble 问题，麻烦 ；be in trouble 遇到麻烦，make trouble 制造麻烦 ，have tr
6、ouble (in) doing sth. =have difficulties (in) doing sth 做.有麻烦。 13. right away=right now=at once，意为 马上 。14. advice 不可数名词劝告，建议，向征求意见， give sb. advice on sth.就某事给某人建议； advise 动词 advise sb. to do sth. 建议某人做某事advise sb. doing sth.【复习】exercise 练习、锻炼-_当 exercise 意为“练习”时，为可数名词 即可加 s当 exercise 意为“锻炼”时，为不可数名词
7、 即不加 s16. hurt 及物动词，使疼痛，受伤，He hurt his leg while exercising.不及物动词，（部位）疼。 His leg hurt badly.clean 【动词】打扫，clean the classroom 打扫教室， 【形容词】 干净的 ，cleaner 意为 清洁工 。18. hit （用手或器具）打；击打 The boy hit the dog with a stone.hit sb. on the head/ nose/ back 打某人的头、鼻子、后背，on 用在所打较硬的部位；hit sb. in the face/ eye/ stomac
8、h 打某人的脸、眼睛、肚子，in 用在所打较软的部位。be used to sth./ doing sth.习惯于、适应了、做某事，强调状态；His grandpa was used to country life.Mary is not used to getting up early in the morning.get/ become used to sth./ doing sth. “变得习惯，逐渐适应”强调过程、动作：Its difficult for one to get used to another countrys habit.20. 【复习】free 形容词 空闲的 fre
9、e time；免费的 the drink is for free；自由的 I want to become a free bird.free【动词】使解脱，得到自由：He could not free his arm.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. run out. 某物用尽了。 -_人 sb. run out of sth. 人用尽了某物。He run out of all his money last ni
10、ght.22. risk (sb.) to do sth. 冒险去做某事 take a risk=take risks 冒险 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.不重要的decision 【名词】决定；抉择； make a decision 做决定 ;make a decision to do sth.= dec
11、ide to do sth. 。25. 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 ，mind doing sth. 介意做某事 , Would you mind my opening the window?27. give up (doing) sth. 放弃（做）某事，give up (playing) computer games
12、；give up 后可接名词、代词和动词 ing 形式，也可不接，如 : Never give up easily.二、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。数 人称第一人称第二人称 第三人称单数 myself yourselfhimself herself itself-_复数ourselvesyourselves themselves【用法】1. 可用作宾语，指的是宾语和主语表示同一个或同一些的人或事物。 如：Maria bought herself a scarf. We must look after ourselve
13、s very well. 2. 可用作表语，指的是表语和主语表示同一个或同一些人或事物。 如： She isnt quite herself today. 3. 可用作主语或宾语的同位语，常用来加强语气。如：She herself will fly to London tomorrow. I met the writer himself last week. 4. 用在某些固定短语当中。look after oneself / take care of oneself 照顾自己 teach oneself sth./ learn sth. by oneself 自学enjoy oneself
14、玩得高兴，过得愉快 help oneself to sth 请自用（随便吃/喝些）. hurt oneself 摔伤自己 say to oneself 自言自语 leave sb. by oneself 把某人单独留下 buy oneself sth.给自己买 东西 introduce oneself 介绍自己 【提醒】1. 反身代词不能单独做主语，但可以做主语的同位语，起强调作用。 如：我自己能完成作业。（误）Myself can finish my homework. (正) I myself can finish my homework. / I can finish my homewo
15、rk myself.2. 反身代词表示“某人自己 ”不能表示“某人的东西”，因为它没有所有格的形式。表-_达“某人自己的（东西） ”时，须要用 ones own. 如：我用我自己的蜡笔画画。 （误）Im drawing with myself crayons. (正) Im drawing with my own crayons.Unit 2 Ill help to clean up the city parks一、基本知识点1. sick 生病的，有病的；可在句中作表语 Mary could not come because she is sick.也可作定语 a sick child【区别
16、 ill】ill 与 sick 同义；但是只在句中做表语，不做定语。Mary could not come because she is ill.2. cheer (sb.) up（让某人）变得高兴；振奋起来 The good news cheered up everyone in our class.3. give out 分发；散发，相当于 hand out，The teacher is giving out/ handing out the test papers.give sth. out to sb. 意为 把某物分发给某人 。4. volunteer 【名词】志愿者 【动词】义务做
17、，自愿做（某事）volunteer to do sth. 自愿做某事 ，The girls could volunteer in an after-school study program.5. used to do sth.过去/曾经(常)做某事，表示过去的习惯、动作或状态，并强调现在已经不再存在或发生。There used to be a cinema here. 这里曾有一个照相机。 They told me stories about the past and how things used to be. 他们告诉我关于这里过去的故事。 -_6. alone 【形容词】独自一人的，无感
18、情色彩：The musician enjoyed living alone and writing songs himself.lonely （感到）孤独寂寞的，带有很强的感情色彩，可做表语或定语。The lonely boy is not lonely now.7. care for sb./sth.照顾；照料care 【名词】小心，关心 take care of=look after 【动词】care about sb./sth.关心，在意某人/事【形容词】careful 仔细的 / careless 粗心的 【副词】carefully 仔细地 8. such “这样的，这种，如此” ，用
19、于修饰名词such+ a/ an+形容词+单数名词：such a good day 多么美好的一天 /such an exciting match 多么 精彩的比赛such+形容词+ 复数名词 /不可数名词：such important decisions 多么重要的建议 such delicious food 多么美味的食物 如果名词前被 many, much, few, little 修饰时，只能用 so，而不用 such：so many sick children/ so little time9. try out for参加选拔，争取成为Thirty football players
20、tried out for the Best Player of the year.try out 试用，试验10. journey 【名词】 （尤指长途）旅行，行程；trip【名词】多指短途旅行；travel【名词、动词】travel around the world 【名词】traveler 旅行者11.【复习】be busy with sth. 忙于（做）什么事情 be busy doing sth. 忙于（做）-_什么事情 12.【复习】try doing sth. 试着去做某事 try to do sth. 尽力去做某事 try ones best (to do sth.) 尽某人最
21、大的努力去做某事 13.【复习】be worried about sb./ sth. = worry about sb./ sth. 担心某人、某事 14. raise money 集资，筹钱；raise money for为筹钱raise【动词】举起；提高；募集15. keep【动词】keep+名词，保留（某物） ；keep+形容词，保持16.【形容词】broken 破损的，出毛病的；blind 瞎的，失明的；deaf 聋的；disabled 有残疾的，丧失能力的；在句中做定语和表语。make it possible (for sb.) to do sth.使（某人）做某事成为可能，You
22、helped to make it possible for me to have Lucky.make it +形容词(+for sb.) to do sth. 使（某人）做某事成为； think/find it +形容词to do sth. 18. make a difference to对有影响；对有作用，difference 前可以用 no, any, some, much 等修饰，如The rain made no difference to the game. Hard-working makes much difference to study.19. difficulty【可数
23、/不可数 】表示抽象意义的 “困难”时为不可数；表示具体的“难题、难事”时为可数；have difficulty (in) doing sth.= have trouble (in) doing sth. 做某事有困难 20. train【动词】训练，trained 为过去分词，可做定语，意为“受过训练的”a trained dog-_21. be excited about sth. 对某事感到兴奋 ，Everyone is excited about the good news.【复习】excited 意为 兴奋的，修饰人；exciting 意为 令人兴奋/激动的，修饰物。22. orde
24、r【 名词】命令，指示；顺序，次序【动词】订购；点（菜）follow the order。23. change【动词】变化，改变 Its hard for a person to change his life(style). 【名词】变化；零钱change A for B 用 A 换成 B：When you travel in China, remember to change US dollars for RMB.repair 【动词】修理，修补； fix【动词】安装；使固定 【fix up 修理=repair】 Unit3 Could you please clean your room
25、?Peter ,could you please take out the trash? 彼得，你能把垃圾倒了吗？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 cant2、take out 取出（v+ adv） 【注】: 跟代词做宾语，代词放中间；跟名词做宾语，可放在中间，也可放在后边His teeth
26、 hurt badly. The dentist take them out .【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3. 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-ing do the cleaning 打扫卫生【结构 3】do ones + 名词
27、 do ones housework/ homework 做家务/家庭作业【结构 4】do some +动词-ing do some reading/ shopping 读写书/ 购物Could I at least finish watching this show? 至少让我看完这个节目可以吗？1】Could I do a sth? 我可以做.吗？用于表达请求，语气比较委婉。 Could I go out with my classmate this weekend?2】at least 至少，多指数量或程度上的最低限度。(反) at most 至少，不超过Now all of us ex
28、ercise at least an hour a day and outside school.3】finish v 结束；完成 finish doing sth 做完某事5、I think two hours of TV is enough for you! 我觉得你看两个小时的电视已经足够了。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。足够的，充分的（在句中作定语或表语）【解析 2】enough I dont have enough money with me.足够；充分（放在形容词；副词后）The river is deep enough for swimming. 作 副词作形容词
