蘇教版三年級(jí)3b英語(yǔ)知識(shí)點(diǎn)

1、一、 重點(diǎn)短語(yǔ)good morning/afternoon/evening 早上/中午/晚上好good night 晚安talk about 談?wù)搇ook at 看stand up起立sit down坐下open the door 開(kāi)門come in 進(jìn)來(lái)up and down 上上下下under the desk 在課桌下面on the floor 在地上wake up 喊醒hurry up 趕緊，快be ready 準(zhǔn)備好welcome to +地點(diǎn) 歡迎來(lái)到time for class 上課時(shí)間behind the door 在門后make a wish 許一個(gè)愿want sth. 想要

2、want to do sth. 想做in the library 在圖書館over there 在那里happy birthday 生日快樂(lè)happy new year 新年快樂(lè)a toy car 一輛玩具汽車a nice cake 一個(gè)好看的蛋糕on the farm 在農(nóng)場(chǎng)in the tree 在樹(shù)上 on the tree 在樹(shù)上in class 在課堂上drink milk 喝牛奶beside the door 在門旁邊f(xié)ly away 飛走fall to the ground 倒在地上be late 遲到from the farmin the tree和on the tree的區(qū)別

3、：in the tree: 指本來(lái)不在樹(shù)上，而是自己落到樹(shù)上，如飛到樹(shù)上、爬到樹(shù)上等on the tree：指本來(lái)就長(zhǎng)在樹(shù)上，如蘋果樹(shù)上的蘋果，樹(shù)上的樹(shù)葉二、 常用語(yǔ)1、 見(jiàn)面打招呼Hello. / Hi.Good morning/afternoon/evening.Nice to meet you.2、 告別Goodbye!3、 祝福語(yǔ)Happy new year.Happy birthday.4、 介紹自己Im Liu Tao.Im ten (years old).5、 向別人介紹某人某物This/That is Tim. 比較近的用this/these，比較遠(yuǎn)的用that/thoseTh

4、is is my father/mother/sister/brother.They are my friends.These are books.6、 其他Would you like ? Yes, please. No, thank you./No, thanks.How nice! how引導(dǎo)的感嘆句：how + 形容詞adj. 或副詞(+主語(yǔ)+謂語(yǔ))What a nice cake! what+形容詞+名詞 表示感嘆，如果名詞是可數(shù)名詞單數(shù)，則前面要加a/anThis is for you. 這是給你的。Here you are. 給你。（把東西遞給對(duì)方時(shí)的常用語(yǔ)）Im sorry.

5、對(duì)不起。 向?qū)Ψ奖磉_(dá)歉意。Thank you (very much). （非常）感謝。 表達(dá)謝意。在口語(yǔ)中也常省略為Thanks.No thanks. 不用謝。It is time for sth. = It is time to do sth.It is time for class. = It is time to have our class.三、 重點(diǎn)句型1、 一般疑問(wèn)句以be動(dòng)詞、助動(dòng)詞或者情態(tài)動(dòng)詞開(kāi)頭，必須用yes或no回答的疑問(wèn)句叫一般疑問(wèn)句。一般疑問(wèn)句在朗讀的時(shí)候，最后一個(gè)單詞的最后一個(gè)音節(jié)用升調(diào)。一般疑問(wèn)句的結(jié)構(gòu)： 有be動(dòng)詞：Am/Is/Are +主語(yǔ)+其他？ 如：Are

6、you a teacher?Yes, 主語(yǔ)+am/is/are. No, Im not. / No, 主語(yǔ)+isnt/arent.一般現(xiàn)在時(shí) 無(wú)be動(dòng)詞：Do/Does +主語(yǔ)+其他？ 如：Does he read English every day? Yes, 主語(yǔ)+do/does. No, 主語(yǔ)+dont/doesnt.現(xiàn)在進(jìn)行時(shí)：Am/Is/Are +主語(yǔ)+v-ing+其他？ 如：Is your brother doing his homework?情態(tài)動(dòng)詞：Must/Need/Can/May/Should +主語(yǔ)+動(dòng)詞原形+其他？ Yes, 主語(yǔ)+ must/need/can/may/

7、should. No, 主語(yǔ)+ mustnt/neednt/cant/may not/shouldnt 有be動(dòng)詞：Was/Were +主語(yǔ)+其他？ 如：Were you ill yesterday? Yes, 主語(yǔ)+was/were. No, 主語(yǔ)+wasnt/werent.一般過(guò)去時(shí)無(wú)be動(dòng)詞：Did +主語(yǔ)+動(dòng)詞原形+其他？如：Did he go to school yesterday? Yes, 主語(yǔ)+did. No, 主語(yǔ)+didnt. Am/Is/Are +主語(yǔ)+going to +動(dòng)詞原形+其他？ 如：Are you going to go swimming this after

8、noon?一般將來(lái)時(shí) Will/Shall +主語(yǔ)+動(dòng)詞原形+其他？ shall用于第一人稱I和we 如：Will you go home now? Yes, 主語(yǔ)+will/shall. No, 主語(yǔ)+wont/shall not.在將陳述句改為一般疑問(wèn)句的時(shí)候，要注意以下幾個(gè)問(wèn)題：1） 如果原句中沒(méi)有be動(dòng)詞、情態(tài)動(dòng)詞和助動(dòng)詞，那么在改為一般疑問(wèn)句的時(shí)候需要增加助動(dòng)詞；2） 如果原句中主語(yǔ)是第一人稱單數(shù)或者是第二人稱單數(shù)，那么在改疑問(wèn)句的時(shí)候，人稱需要變化；3） 在改成疑問(wèn)句的時(shí)候，某些詞需要將其改變?yōu)樵谝蓡?wèn)句中使用的同義詞；如： There is some water in the cu

9、p.è Is there any water in the cup?2、 特殊疑問(wèn)句特殊疑問(wèn)句是對(duì)句子某一部分提問(wèn)疑問(wèn)句，常由疑問(wèn)詞who, what, when, where, why, how, whose等引導(dǎo)。u 特殊疑問(wèn)句的語(yǔ)序：在多數(shù)情況下和一般疑問(wèn)句一致，就是在一般疑問(wèn)句前面加上疑問(wèn)詞和它所修飾的名詞、形容詞。如：I like red. 對(duì)red提問(wèn)：What color do you like?如果是對(duì)主語(yǔ)提問(wèn)，語(yǔ)序不變。如：Mr. Smith is our English teacher. 對(duì)Mr. Smith提問(wèn)：Who is your English teach

10、er?u 特殊疑問(wèn)句的回答：?jiǎn)柺裁淳痛鹗裁?，可以?jiǎn)略，也可以用完整句子。u 常用的特殊疑問(wèn)句：who is 對(duì)主語(yǔ)人提問(wèn)，意為“是誰(shuí)”，如：Who is our teacher?where 問(wèn)地點(diǎn)，一般用介詞短語(yǔ)回答， 如：Where is the bird? It is on the desk.What time is it? /Whats the time? 問(wèn)時(shí)刻(幾點(diǎn)幾分) What time is it? It is six oclock.Whats this/that? 復(fù)數(shù)形式：What are these/those問(wèn)這/那是什么，在回答的時(shí)候需要注意，如果問(wèn)的是人，必須用th

11、is/that回答（與問(wèn)句保持一致），如果問(wèn)的不是人，則一律用it來(lái)回答，不能用this/that; 如：Whats this/that? It is a book. It is a dog. This/That is Tim.What color 問(wèn)顏色 What color is your dress? It is red.What about /How about 怎么樣，英語(yǔ)中常用的省略問(wèn)句；How old 問(wèn)年齡 How old are you? Im ten.3、 祈使句表示請(qǐng)求、命令、勸告或者建議的句子叫祈使句。祈使句省略主語(yǔ)“You”。u 肯定祈使句：動(dòng)詞原形做句子開(kāi)頭這里的動(dòng)

12、詞包括be動(dòng)詞、實(shí)義動(dòng)詞，如：Be careful.Come with us.Stop speaking. Listen to me, please.u 否定祈使句：在謂語(yǔ)動(dòng)詞前面加上Dont。Dont shout!Dont eat here.Dont be late.u let開(kāi)頭的祈使句： Let+賓語(yǔ)+其它, let sb. do sth.Let me try.Let him sit here.Lets go home together.對(duì)祈使句的回應(yīng)：OK. All right. Yes. Im sorry.四、 重點(diǎn)語(yǔ)法1、 代詞 用來(lái)代替名詞的詞叫代詞。代詞的使用必須和它所代替的名

13、詞在人稱、數(shù)、格等方面一致。凡是名詞能擔(dān)任的句子成分，代詞都能擔(dān)任。u 人稱代詞主格 賓格單數(shù)復(fù)數(shù)單數(shù)復(fù)數(shù)第一人稱Iwemeus第二人稱youyouyouyou第三人稱he, she, ittheyhim, her, itthem例句Im ten.She is Yang Lin.Are you Lliu Tao?The doctor advised him to give up smoking.The teacher gave two students, Jack and her some kind advice.I saw at once that it was him.u 形容詞性物主代詞

14、表示歸屬關(guān)系的代詞叫物主代詞。形容詞性單數(shù)復(fù)數(shù)第一人稱myour第二人稱youryour第三人稱his, her, itstheir用法作定語(yǔ)u 指示代詞指示代詞是用來(lái)表示這個(gè)、那個(gè)、這些、那些等概念的代詞。指示代詞有：this(這個(gè)), that(那個(gè)), these(這些), those(那些), it。ü 指示代詞可作主語(yǔ)、賓語(yǔ)、表語(yǔ)、定語(yǔ)This is a difficult question.Do you like these?I dont want that.I want to read that book.ü 指示代詞都可用the來(lái)代替;ü it可以

15、用來(lái)指代身份不明的人、嬰兒、前面提到的事物、時(shí)間、天氣、距離等等2、 be動(dòng)詞的系表結(jié)構(gòu)系表結(jié)構(gòu)：系動(dòng)詞+表語(yǔ)，表語(yǔ)用來(lái)表示主語(yǔ)的身份、特征和狀態(tài)；把主語(yǔ)和表語(yǔ)連接起來(lái)的詞就是系動(dòng)詞，也叫連系動(dòng)詞。系表結(jié)構(gòu)中的表語(yǔ)往往是名詞、代詞、形容詞、副詞、介詞短語(yǔ)等be是重要的連系動(dòng)詞，它的形式隨著主語(yǔ)的單復(fù)數(shù)以及時(shí)態(tài)的改變而變化。This is Tom.My name is Tim.This is my father. He is a teacher.He is tall.My ball is under the desk.My mother is out.They are happy.She is my friend.be動(dòng)詞系表結(jié)構(gòu)的否定形式就在be動(dòng)詞后面加否定詞not.be動(dòng)詞：am, is, are, was , were3、 表示位置關(guān)系的介詞in, on, under, behind, besidein：在里面There are many books in my schoolbag.There is a hole in the wall.on：在.上，表示在.表面，二者要接觸 The book is on the