四年级下英语知识点归纳(共11页).doc

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1、精选优质文档-倾情为你奉上英语知识点归纳一）能按顺序规范默写26个字母二）背诵课本上的单词和每模块第一单元活动2重点句子三）、在英语中表示“两者之间的比较”时，形容词要用比较级形式。A. 形容词的比较级构成规则1. 一般在形容词词尾加er原级 比较级 原级 比较级young younger long longerold older tall tallerstrong stronger short shorter2. 以e结尾的词直接加r nice-nicer3. 有些形容词双写最后一个字母再加er big-bigger thin-thinner hot-hotterfat -fatter we

2、t-wetter4. 以辅音字母加y结尾的词，变y 为i再加erbusy-busier easy-easier heavy-heavier5. 有些形容词在词前加more构成比较级 difficult-more difficult interesting-more interesting dangerous -more dangerous beautiful -more beautifulB. 不规则变化 good- better bad- worse many/ much- moreC. 比较级句型中常用than 进行比较如：Circle A is bigger than Circle B.

3、 圆A 比圆B大 Lingling is better than Daming. Amy is taller than Lingling.四）、人称代词包括主格和宾格。主格在句中作主语，宾格用于动词或介词后作宾语。主格Iwe youhesheit they 宾格meusyouhimheritthem我我们你,你们他她它他们We are going to have a picnic. Let us go.I miss everyone in China. Who can help me?What is he doing? He is trying to get on the bus. Look

4、at him.She cant hear. This dog helps her.Tell me more about the Great Wall.五）物主代词物主代词包括形容词性物主代词和名词性物主代词。形容词性物主代词后需跟名词，名词性物主代词后不用跟。名词性物主代词含义=形容词性物主代词+名词 的含义形容词性物主代词myouryourhisheritstheir名词性物主代词mineoursyourshishersitstheirs我的我们的你的，你们的他的她的它的他们的This is my book. = This book is mine.This is his bag. = Th

5、is bag is his.Your watch is old, but hers is new.Thanksgiving is my favourite festival.We say “Thank you” for our food, family and friends.六）时态1. 一般过去时 表示过去某个时间发生的动作或存在的状态。经常与表示过去的时间连用。如yesterday（昨天）, last week（上周）, last month（上个月）, last year（去年）, two months ago（两个月前）等。构成：(1)肯定句：主语+动词过去式+ He made a

6、video. 否定句：主语+didnt +动词原形+ He didnt make a video. 一般疑问句：Did +主语+动词原形+ .? Did he make a video? (2) be动词用was, were . 否定句在was, were后加not. 一般疑问句把was, were提前到句首。 She was born in America. She was not born in America. Was she born in America?2. 现在进行时 表示现在正在进行的动作构成：主语+am /is / are+ 现在分词+ The birds are singi

7、ng in the trees. 否定句在am /is / are后加not. The birds are not singing in the trees.一般疑问句把am /is / are提前到句首。Are the birds singing in the trees?3.一般将来时 表示将来某个时间要发生的动作或存在的状态。经常与表示将来的时间连用。如tomorrow (明天), next week（下周）, next year（明年）等。构成：(1) 主语+ will + 动词原形+ He will pick up the apples.否定句在will后加not. He will

8、not pick up the apples.一般疑问句把will提前到句首。Will he pick up the apples?(2) 主语+ be going to + 动词原形+ We are going to study French.否定句在am /is / are后加not. We are not going to study French.一般疑问句把am /is / are提前到句首。Are you going to study French?4. 一般现在时 表示经常性，习惯性的动作或存在的状态。构成：（1）主语+am /is / are+ 否定句在am /is / are

9、后加not. 一般疑问句把am /is / are提前到句首。 Helen Keller is a model for blind people and for you and me. (2) 肯定句：主语+动词原形+ The ducks like it. 否定句：主语+dont +动词原形+ The ducks dont like it. 一般疑问句：Do +主语+动词原形+ .? Do the ducks like it?(3) 肯定句：主语(三单)+动词第三人称单数形式+ He likes noodles. 否定句：主语+doesnt +动词原形+ He doesnt like nood

10、les. 一般疑问句：Does +主语+动词原形+ .? Does he like noodles七）动词过去式形式规则动词的过去式构成1.一般在动词词尾加ed 如： work - worked play-played watch- watched2. 以e 结尾动词在词尾加d如： live - lived 3. 以辅音字母 + y结尾的动词，把y变为i 再加ed如： study -studied copy-copied cry-cried carry-carried4. 有些动词双写最后一个字母再加ed，如：stop -stopped drop- dropped5、不规则动词的过去式变化规律

11、性不强，须多加记忆。 动词原形 动词过去式 动词原形 动词过去式go went come came become became bring broughtsay said put putteach taught can could read read give gaveam/is was are were do did fly flew have had make maderun ran see saw ride rode win wonget got tell told eat ate send sent take took buy bought sit sat meet met write

12、 wrote draw drew swim swam fly flew drink drank give gave ring rang fall fell八）动词第三人称单数形式 动词第三人称单数的构成规则1大多数动词在词尾加“S”.stopstops makemakes readreads playplays say seisays sez2以辅音字母加“y”结尾的，要先将“y”变为“i”，然后在加“es” flyflies carrycarries studystudies worryworries 3以“s, x, sh，ch, o”结尾，在词尾加“es”. teachteaches w

13、atchwatches go goes do- does九）. There be 句型表示某地或某时间有某物。 There is 后加单数名词或者不可数名词。 There are 后加可数名词的复数形式。十）. 情态动词 can 过去式could 后加动词原形 I can write English. I can carry this bag. I can help you.We can always be friends. Later she could read and write.否定句在can, could 后加notcan not = cant could not = couldnt

14、We cant go now. I cant write Chinese. I cant carry everything. His friends cant hear him. She couldnt see and she couldnt hear. 一般疑问句把can, could提前到句首。 Can you swim? Yes, I can. / No, I cant. Can you speak English? Can I write to your friends?Can you be my Chinese pen friend? Yes, of course.十一 have g

15、ot 意思是“有” 第三人称单数形式has got否定形式在have, has后加not一般疑问句形式把have, has提前到句首Ive got lots of stamps.I have got some chopsticks. I havent got a basketball.Daming has got a Chinese kite. Its got eight million people.Beijings got about fourteen million people.Have you got any stamps from China? Yes, I have./ No,

16、I haventHave you got a book about America？十二. 1. 介词后加动词ing 形式 Its for playing baseball.2. 说某种语言用speak We are going to speak Chinese. I can speak English. He can speak French.3. 辅音音素前用a, 元音音素前用ana hot dog a car an hour an ice cream an apple an orangean egg an email an animal an elephant4. 想做某事 want t

17、o do somethingWhat do you want to eat? What do you want to drink?Do you want to go to Chinatown? I want to go swimming.想让某人做某事 want somebody to do sthI wanted you to bring the baseball caps.I want you to be my friends.5. be 动词包括 am , is, are. 用法我接am你接are， is跟着他她它。单数不可数用is, 复数用are.I am in Class One.

18、You are in Class Two. He is in Class Three.Our picnic is wet. My newspaper is flying away.These ducks are very noisy. The oranges are falling. These postcards are great. 6. 询问天气用Whats the weather like? 或者How is the weather?描述天气用动词或者be+表示天气的形容词Its going to snow in Harbin. Its going to rain soon.Its g

19、oing to be sunny tomorrow.7. 在星期几，具体的某一天用onI had a very funny day on Saturday.on Teachers Day on Flag Day on Thanksgiving Day8. look 表示看，看起来 look at 表示看某物某人 see表示看见 look out of 往外看Look! He is running. It looks good. I can see you.We are looking at some ducks. I am looking out of the window.Look at t

20、his one.9. 名词所有格表示某人的， 一般在名词词尾加 s . Im making Damings birthday card.10. 球类前不加the, 乐器前加theDaming is playing the trumpet. I can play the violin. Im going to play football with my friends.11.在某年，某月，某季节，在上午，下午，晚上用inin October 2003 in 1809 in spring in the morning in the afternoon in the evening在某一时刻用atW

21、e are going to have a party at half past six.12.lets 等于let us 后加动词原形 Lets go. Lets send an email to Dad.13.Here you are. 给你！14. some 用于肯定句中， any 用于否定句和疑问句中I am sending some photos. I can speak some English.These are some stamps from Canada.There werent any televisions many years ago.Have you got any

22、 American stamps?15. too 当“也”用时，放在句尾。 The cola is falling, too. too 还可以当“太”讲 Its too big for you. too many 太多 There are too many books on the desk.十三反义词big- small long- short new- old tall- shortyoung- old up- down fat- thin white- black十四同音词for- four son- sun hour- our too- two right- write eye - I

23、 arent- aunt sent-centwhere- wear their- there by- buy 十五. 近义词good- well study - learn 十六缩写形式与完全形式I am = Im he is = hes she is = shes it is = its that is = thats what is = whats let us = lets we are = were they are = theyre you are= yourecan not= cant will not = wont Ill = I will well = we willdo no

24、t = dont does not = doesnt did not = didntit has got = its got I have got = Ive gothave not = havent has not = hasntare not = arent is not = isnt十七分类单词和词组天气：rain下雨 snow下雪 rainy有雨的 snowy有雪的 hot炎热的 cold 寒冷的 warm温暖的 cool凉爽的 windy有风的 sunny晴朗的 交通工具：by bus乘公共汽车 by car乘小汽车 by bike骑自行车 by plane乘飞机 by ship乘轮

25、船 by train坐火车 on foot步行星期：Monday星期一 Tuesday星期二 Wednesday星期三 Thursday星期四 Friday星期五 Saturday星期六 Sunday星期日月份：January一月 February二月 March三月 April四月 May五月 June六月 July七月 August八月 September九月 October十月 November十一月 December十二月 季节：spring春天 summer夏天 autumn秋天 winter冬天数字：one一 two 二 three三 four四 five五 six六 seven七

26、 eight八 nine九 ten十 eleven十一 twelve十二 thirteen十三 fourteen十四 fifteen十五 sixteen十六 seventeen十七 eighteen十八 nineteen十九 twenty二十 thirty三十 forty四十 fifty五十 sixty六十 seventy七十 eighty八十 ninety九十 one hundred一百 疑问词who 谁 what 什么 when 什么时候 what time 几点where 哪里 why 为什么 how 怎样 how much 多少how many 多少 how old 多大 how lo

27、ng 多长whose 谁的 what colour 什么颜色词组：fly kites或者fly a kite放风筝 go to see films去看电影 watch TV看电视 play computer games玩电脑游戏have a picnic吃野餐 go to school去上学 go home回家 go to the park去公园 go to bed去睡觉 go there 去那里 go shopping去购物 go to the doctor去看病say goodnight道晚安 fly away飘走 take pictures=take photos照相 listen to

28、 music听音乐 read a book读书 read stories读故事 do homework做作业 make a cake做蛋糕 make dumplings做饺子 wash clothes洗衣服 sing songs唱歌 turn left向左转clean the classroom打扫教室 turn right向右转 go straight on直走 have a cold感冒 have a headache头疼 have breakfast 吃早餐 have lunch吃午餐 have supper吃晚餐 = have dinner come on加油 come in进来 co

29、me from 来自= be from come back回来 go up the hill上山 go down the hill下山 play with dolls玩洋娃娃 of course当然可以 in English用英语 all over the world=all around the world全世界 stand up起立 sit down坐下 at the weekend在周末 notat all一点也不 get up起床 get on上车 get off下车 in a hurry匆忙 next to挨着 turn on the light打开灯 point to指向talk

30、about谈论 如何做句型转换一变否定句，1. 先看句中是否有be动词。如果有，在be动词am, is, are或者was, were后加not.There are some books on the desk.There arent any books on the desk.2. 再看是否有can, could, will, should. 如果有，在他们后加not. I can speak English. I cant speak English.3. 然后看是否有have got, has got, 如果有，在have, has后加not. Ive got some stamps f

31、rom China.I havent got any stamps from China.4. 如果以上都没有，看谓语动词如果是动词原形，借助于dont. I believe it. I dont believe it.5. 谓语动词如果是第三人称单数，借助于doesnt, 谓语动词三单形式变成动词原形。He likes noodles. He doesnt like noodles.6. 谓语动词如果是动词过去式，借助于didnt, 谓语动词过去式形式变成动词原形。He made a video. He didnt make a video.二变一般疑问句1. 先看句中是否有be动词。如果有

32、，把be动词（am, is, are）或者was, were提前到句首，句尾变问号。There are some books on the desk.Are there any books on the desk?2. 再看是否有can, could, will, should. 如果有，把他们提前到句首，句尾变问号。 I can speak English. Can you speak English?3. 然后看是否有have got, has got, 如果有，把have, has提前到句首，句尾变问号。Ive got some stamps from China.Have you go

33、t any stamps from China?4. 如果以上都没有，看谓语动词如果是动词原形，借助于Do, 放在句首. 句尾变问号。Snakes like music. Do snakes like music?5. 谓语动词如果是第三人称单数，借助于Does, 放在句首. 谓语动词三单形式变成动词原形, 句尾变问号。 She likes fish. Does she like fish?6. 谓语动词如果是动词过去式，借助于Did, 放在句首. 谓语动词过去式形式变成动词原形, 句尾变问号。She wrote a book about herself.Did she write a book about herself?三对划线部分提问，对划线部分提问时，如果划线部分作主语，直接用疑问词代替划线部分。 Daming has got a Chinese kite. Who has got a Chinese kite?如果划线部分不作主语，用 疑问词+一般疑问句语序的结构Daming has got a Chinese kite.(中间步骤 Has Daming got a Chinese kite?)What has Daming got?变否定句, 疑问句时, 注意把some 变成any注意第一人称和第二人称转换 专心-专注-专业