牛津译林版九年级上册Unit 4 Growing up课前预习ppt课件

这是一份牛津译林版九年级上册Unit 4 Growing up课前预习ppt课件，共27页。PPT课件主要包含了时间状语从句，Summary，before，After ，When ，While ，when ，Exercises，when，while等内容，欢迎下载使用。
时间状语从句是指在复合句中充当时间 状语的句子。常见引导词：befre, after, when, while, since, till/until, as sn as, whenever等。
① befre “在...之前”表示主句动作发生 在从句动作之前。 Mr. Brwn had wrked in a bank fr a year befre he came here. 布朗先生来这里之前已经在一家银行里 工作一年了。 Clses the windws befre yu leave the rm, please. 在你离开房间前，请关上窗户。
befre、after、when和while 引导的时间状语从句
② after “在...之后”表示主句动作发生在 从句动作之后。 He left the classrm after he had finished his hmewrk . 他做完作业之后就离开教室。 I went t schl after I finished my breakfast. 我吃完早饭后去上学。
③ when “在...的时候”表示主句动作发 生的特定时间。 Mzart started writing music when he was fur years ld. (在)莫扎特4岁的时候，开始写音乐作 品。 The days get lnger when spring cmes. 春天到来时，白天变长了。
④ while “在...期间; 在…的时候”强调主 句动作和从句动作是同时发生的。 He visited a lt f places while he was traveling. 他在旅行期间参观了许多地方。While my sister was sweeping the flr, I was washing the dishes. 我姐姐扫地时，我在洗碗。
注意：在when 和while引导的从句中，当 主句和从句的主语一致，并且从句 中有be 动词时，可以省略主语和be 动词，构成when/while + -ing 结构 When (she is) in truble, she always asks me fr my help. 当她遇到困难时总是向我求助。 While (I am) travelling, I like t buy sme suvenirs. 旅游时我喜欢买纪念品。
1. He remained there fr abut a year _______ the NBA tk ntice f him.2. _______ he graduated, he was frced t play in anther basketball league.3. ______ he finally gt the chance, he scred 20 pints in his first game.4. _______ (he was) attending junir high, Spud tried ut fr the schl team.5. Smetimes we frget _______ we shuld stp.
6. It can cheer yu up _______ yu are feeling sad. 7. Outside, peple were running in all directins _______ pieces f glass and bricks were falling dwn.8. Timmy was trapped in a dark place _______ the earthquake stpped.9. He stayed with the by and played with him fr tw hurs ________ the by’s parents came.
① since “自…以来” 表示自过去的一个起始时间点到目前(说话时间)为止的一段持续时间。主句的谓语动词一般用现在完成时，从句的谓语动词用一般过去时。Mr Green has taught in that schl since he came t China three years ag.自格林先生来中国以来，他就在这所学校教书。
since、till和until引导的时间状语从句
② till/until “到……为止”，一般情况下两者可以互换。until可以放在句首或句中，而till不可以用在句首。注意：如果主句中的谓语动词是瞬间动词，必须用否定形式，即“nt…until”结构，意思是“直到……才” Walk till/until yu see a white huse. 一直走到你看到一座白房子为主。 I did nt g t bed until I finished my hmewrk. 直到做完作业我才上床睡觉。
1. Yu’ve been happy ______I first met yu.2. Spud remained in anther basketball league fr abut a year __________ the NBA tk ntice f him.3. _______ his dream came true, Spud never gave up. 4. D nt wake me up ________ yu finish yur wrk.
till/ until
5. It mved up ver my stmach and neck _______ it was standing near my face. 6. I’ve lived here ________ I was brn. 7. They’ll say “excuse me” and be plite enugh t wait _______yu mve.
① as sn as “一……就”We began t wrk as sn as we gt there. 我们一到那就开始工作。I will write t yu as sn as I get hme. 我一到家就给你写信。
as sn as 和 whenever引导的时间状语从句
② Whenever “每当；任何时候” He likes listening t music whenever he has time. 每当他有时间的时候，他喜欢听音乐。 Every time I listen t yur advice, I get int truble. 每当我听取你的建议的时候，我就会惹上麻烦注意：whenever可以用every time 替换。
David ften ges t play basketball ___________ schl is ver.
2. He watches the NBA __________ there is a game n TV.
3. _________ he talks abut basketball, he gets excited.4. ___________ he learnt that the NBA players wuld cme t China, he tried his best t get a ticket.
1. — Hw lng did yu stay with yur friend Jhn in the cafe last night? — _____10:30 p.m. A. At B. Since C. Until D. Whenever2. — Did yu talk with yur favurite singer after the cncert? — N. He gt n the cach ____I culd get in a wrd. A. while B. after C. until D. befre
3. While I _______ alng the street, a running by ____ int me frm behind. A. was walking; kncked B. walked; was kncking C. was walking; was kncking D. walked; kncked
4. Disney was drawing a picture at hme 　　　 _____a little muse jumped nt the desk.while B. when C. befre D. after5. Uncle Wang _____n the farm when I met him a few weeks ag.A. is wrking B. has wrkedC. was wrking D. wrks
6. My brther ____ interested in English since the end f last term. A. had becme B. became C. was D. has been7. — Hw lng shall we stay indrs? — _____ the rain stps. A. Befre B. While C. When D. Till
8. — Can yu cme and see me in Nanjing? — OK. I will leave fr Nanjing _____　　　 the summer hliday ______.A. whenever; startsB. as sn as; startsC. whenever; will startD. as sn as; will start
9. The yung man saw his girl friend ff at the railway statin and he _____her thrugh the windw until the train disappeared in the distance.A. sawB. watched C. nticedD. fund10. We must fight _____ pllutin s that it wn’t destry (破坏) ur gd life.A. againstB. frC. tD. abut
1. Revise Grammar and finish the exercises.2. Preview Integrated skills. Preview the wrds and read thrugh the ntes.