九年級(jí)知識(shí)點(diǎn)歸納Unit3

1、九年級(jí)英語Unit31.語態(tài)： 英語有兩種語態(tài)：主動(dòng)語態(tài)和補(bǔ)動(dòng)語態(tài) Cats eat fish. （主動(dòng)語態(tài)）貓吃魚。 Fish is eaten by cats. (被動(dòng)語態(tài))魚被貓吃。 被動(dòng)語態(tài)的構(gòu)成 由“助動(dòng)詞be 及物動(dòng)詞的過去分詞”構(gòu)成 助動(dòng)詞be 有人稱、數(shù)和時(shí)態(tài)的變化，其變化規(guī)則與be 作為連系動(dòng)詞時(shí)完全一樣。時(shí)態(tài)被動(dòng)語態(tài)結(jié)構(gòu)例句一般現(xiàn)在 時(shí)am are +過去分詞is English is spoken in many countries.一般過去 時(shí)was +過去分詞were + 過去分詞This bridge was built in 1989.情 態(tài)動(dòng) 詞can/shou

2、ldmay +be+過去分詞must/The work must be done right now. 被動(dòng)語態(tài)的用法當(dāng)我們不知道誰是動(dòng)作的執(zhí)行者，或者沒有必要指出誰是動(dòng)作的執(zhí)行者，或者只需強(qiáng)調(diào)動(dòng)作的承受者時(shí)，要用被動(dòng)語態(tài)。2. allow sb. to do sth. 允許某人做某事（主動(dòng)語態(tài)）如： Mother allows me to watch TV every night. 媽媽允許我每晚看電視。 be allowed to do sth. 被允許做某事（被動(dòng)語態(tài)）如： LiLy is allowed to go to Qinzhou. 莉莉被允許去欽州。3. get their e

3、ars pierced 穿耳洞 讓/使（別人）做某事 get sth. done(過去分詞) have sth. done 如： I get my car made. = I have my car made. 我讓別人修好我的車4. enough 充足 形容詞enough 如：beautiful enough 充足漂亮 enough名詞 如：enough food 充足食物 enough to 充足去做 如： I have enough money to go to Beijing. 我有充足的錢去北京。 She is old enough to go to school.她夠大去讀書了。5

4、. stop doing sth. 停止做某事 Please stop speaking.請停止說話。stop to do sth. 停止下來去做某事 Please stop to speak. 請停下來說話。6. 看起來好像sb. seem to do sth. He seems to feel very sad.it seems that +從句It seems that he feels very sad. 他看起來好像很傷心。 7. 系動(dòng)詞不能獨(dú)立作謂語，要和表語一起構(gòu)成謂語。常用的連系動(dòng)詞有：look, feel, be, become, get, turn, smell, tast

5、e, stay(保持), kept等。連系動(dòng)詞除be 和become 等少數(shù)詞可接名詞作表語外，一般都是接形容詞。 如： They are very happy. He became a doctor two years ago. She felt very tired.8. 倒裝句： 由so助動(dòng)詞(be/do/will/have)/情態(tài)動(dòng)詞主語 意為：也是一樣 She is a student. So am I. 她是一個(gè)學(xué)生，我也是。 She went to school just now. So did I . 她剛才去學(xué)校了，我也是 She has finished the work.

6、 So have I . 她已經(jīng)完成了工作,我也完成了。 She will go to school. So will he. 她將去學(xué)校，他也是。9. yet 仍然，還 常用在否定句或疑問句當(dāng)中10. stay up 熬夜如：I often stay up until 12：00pm.我經(jīng)常熬夜到12點(diǎn)。11. clean up 打掃 整理 如： I have cleaned up the bedroom. 我已經(jīng)打掃完了臥室。12. 水準(zhǔn)副詞：always總是 usually經(jīng)常 sometimes有時(shí) never從不 如：I am always/usually/sometimes/nev

7、er late for school. 我總是/經(jīng)常/有時(shí)/從不上學(xué)遲到。13. 以前做某事： Do you ever get to school late? Yes, I do. No, I dont. Have you ever got to school late? Yes, I have. No, I havent.14. go shopping(去購物), go fishing(去釣魚), go swimming(去游泳), go boating(去劃船), go hiking(去登山), go trekking(去徒步)15. be strict with sb. 對(duì)某人嚴(yán)厲 如：

8、 Mother is strict with her son. 媽媽對(duì)她的兒子很嚴(yán)厲。16. take the test 參加考試pass the test 通過考試fail a test 考試失敗17. the other day 前幾天18. agree 同意 反義詞 disagree不同意 動(dòng)詞 agreement 同意 反義詞 disagreement 不同意 名詞18. keep sb/ sth. 形容詞 使某人/某物保持. 如： We should keep our city clean.我們應(yīng)該保持我們的城市干凈。19. bothand +動(dòng)詞復(fù)數(shù)形式如： Both Jim an

9、d Li Ming play bastketball.20. learn (sth.) from sb. 向誰學(xué)習(xí)(什么) 如： Jim learnt English from his English teacher. 吉姆向他的英語老師學(xué)習(xí)英語21. have an opportunity to do sth. 有機(jī)會(huì)做某事 have a chance of doing sth. 有機(jī)會(huì)做某事 如：I have an opportunity to go to Beijing. I have a chance of going to Beijing.22. at present 當(dāng)前23. a

10、t least 最少 at most 最多24. 花費(fèi) take ,cost, spend , pay sth. take (sb.) time to do sth. It took (me) 10days to read the book. sth. cost (sb.) The book cost (me) 100yuan. sb. spend on sth. She spent 10days on this book. sb. spend doing sth. She spent 10days reading this book. sb. pay for sth. She paid 10

11、yuan for this book.25. have +時(shí)間段+off 放假，休息 如：have 2 days off26. reply to 答復(fù)某人 如：She replayed to MrGreen.27. agree with sth. 同意某事 如：I agree with that idea. agree to sb. 同意某人的意見 如：I agree to LiLei.28. get in the way of 礙事，妨礙 如： Her social life got in the way of her studies. 她的社會(huì)生活妨礙了她的學(xué)習(xí)。29. success n

12、. succeed v. successful adj. successfully adv. 30. think about 與think of 的區(qū)別 當(dāng)兩者譯為： 認(rèn)為、想起、記著時(shí)，兩者可互用 I often think about/ of that day. 我經(jīng)常想起那天。 think about 還有“考慮”之意 ，think of 想到、想出時(shí)兩者不能互用 At last, he thought of a good idea. 最后他想出了一個(gè)好主意。 We are thinking about going Qinzhou. 我們正在考慮去欽州。31. 對(duì) 熱衷， 對(duì)興趣be serious about doing 如：She is serious about dancing. 她對(duì)跳舞熱衷。be serious about sth. 如：She is serious about him. 她對(duì)他感興趣。32. practice doing 練習(xí)做某事 She often practice speaking English.33. c