初中英语沪教牛津版(六三制)七年级下册Unit 8 From hobby to career授课课件ppt

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When I was eight, I gt a bk abut stars.
I was nt very interested in animals when I was a child.
When I was a 16-year-ld schlgirl, I dreamt f a career studying wild animals in Africa.
When I was 26, I travelled frm Britain t the muntains f East Africa.
When did Patrick get a bk abut the stars?
When he was eight, he gt a bk abut the stars.
adverbial clauses f time 时间状语从句
main clause 主句
When 引导的时间状语从句。
When I was tw mnths, I culd walk.
When I was six years ld, I began t play the pian.
When I was nine years ld, I began t sing.
引导词When(引导时间状语从句)
We can use the cnjunctin when t frm an adverbial clause f time. It links tw clauses int ne sentence.
When I was eight, I gt a bk abut stars.When the girl gt lder, she sailed the bat herself.
A Adverbial clauses f time (when)
在...时间点之中（当时） when/while/as
一...就 as sn as
直到... until
When we use the cnjunctin when t link tw clauses, we tell peple that the tw actins happen at (the same time/ different times).
Wrk ut the rule
We can put an adverbial clause f time at the beginning r the end f a sentence.
时间状语从句可以在句首，也可以在句末。时间状语从句位于主句之前时，要用逗号将从句和主句隔开；位于主句之后时，则不需用逗号。
He gt a bk abut the stars when he was eight.
由when引导的时间状语从句的意义和时态
时间状语从句用于说明主句动作发生或进行的时间。时间状语从句位于主句之前时，要用逗号将从句和主句隔开；位于主句之后时，则不需用逗号。
如：When the bell rings, he gets int the classrm. 当铃声响起时，他进入教室。When yu were ut, Jack called in.你出去的时候，杰克来了。I will tell her the news when I meet her.当我见到她时，就会把这个消息告诉她。（从句用一般现在时表示将来发生的动作）
拓展时间状语从句的引导词除了when 之外，常用的还有：befre 在……之前after 在……之后while 当……时as sn as 一……就……until 直到since 自从as 随着
如：I have breakfast at hme befre I g t schl. 在我上学之前，我在家里吃早餐。While my dad is reading, my mum is cking. 我爸爸在看书时，我妈妈在做饭。I fell asleep as sn as I lay in bed last night. 昨晚我一躺在床上就睡着了。After he finished his hmewrk, he read his stry bk. 他做完作业之后，就读他的故事书了。I will wait until they arrive at the schl gate. 我会一直等到他们来。
when的用法when引导的从句的谓语动词可以是延续性的动词，又可以是瞬时动词，但大多是瞬时动词。表示带有规律性的“每当”或当主、从句谓语动词的动作发生有先后时用引导词when。When引导的时间状语从句用的最多的是一般过去时，而主句的时态没有限制，根据具体情况而定。 如：我们到达了时天正下着雨。It was raining when we arrived.
while的用法while搭配持续状态持续状态=进行时/延续性状态如：当他正在做作业时，他睡着了。He fell asleep while he was ding his hmewrk. 当我在墨西哥期间，我学了西班牙语。 I learned Spanish while I was in Mexic.
as的用法as引导从句时侧重主从句动作同时或几乎同时进行，从句的动作可以是持续性的，也可以是短暂的。 如：我们总是边走边唱。We always sing as we walk. 当我们出门时，开始下雪了。As we was ging ut, it began t snw.
since的用法since：自从如：自从他毕业以来，他已经有过两份工作。He has had tw jbs since he graduated.
主句：现在完成时，since+一般过去时
until/till的用法“until/till直到” 在肯定句中通常只用延续性动词；在否定句中通常用非延续性动词，意为“直到……才”。如：直到他开始说话，我才意识到他是位外国人。I didn’t realize he was a freigner until he started speaking.这封信从一个人转手到另一个人，知道每个人都看过。The letter passed frm ne t anther until everyne had read it.
Match the clauses in clumn A with thse in clumn B t make cmplete sentences with when.
1.She always brings a present when she visits her friends.
When she visits her friends, she always brings a present.
2.He sits n the flr when he watches TV.
When he watches TV, he sits n the flr.
3.He stayed in bed when he was ill.
When he was ill, he stayed in bed.
4.She takes a basket when she ges shpping.
When she ges shpping, she takes a basket.
In grups f fur, make sentences with “used t” and “did nt use t”, and then present thse sentences t the class.
used t/did nt use t Meaning? Examples? Pay attentin t? …
used t/did nt use t
We use “used t” t talk abut smething we ften did in the past. Its negative frm is did nt use t/ didn’t use t.
I used t g utside with my mum n clear nights and lk at the sky.When did her dad use t take them fr trips n his bat?I didn’t use t have much mney.
used t表示过去经常做某事，否定形式为did nt use t/ didn’t use t
used t d sth 过去常常做某事表示过去经常发生的动作或存在的状态，而现在此动作已不再发生或此状态已不存在。这个结构含有今昔对比之意。其否定式为：did nt / didn’t use t d sth其疑问式为：did ... use t d sth
如：I used t swim in this river when I was yung. 我小时候常常在这条河里游泳。They didn’t use t be gd friends.他们以前不是好朋友。What did yu use t d?你过去常常做什么？
Mike used t g t Dngfeng Rad Primary Schl.
Nw he ges t N.5 Junir High Schl.
Lk at the pictures f Mike at primary schl and Mike nw. What did he use t d and what des he d nw? Use the example belw t help yu.
Mike used t g t bed at 9 p.m.
Nw he ges t bed at 10 p.m.
Mike didn't use t enjy swimming.
Nw he ges swimming every week.
Mike used t be shy.
Nw he enjys talking t peple.
1.We have learned hw t use Adverbial clauses f time with the cnjunctin when.2. We have learned hw t use used t /did nt use t.
一、选择最佳答案填空。( )1. I was ding my hmewrk alne in the classrm ____ I heard the sng. A. because B. when C. thugh D. after( )2. He was at the table ____ smene kncked at the dr. A. why B. where C. when D. what( )3. ____ I was a child, I wanted t be a dctr. A. When B. After C. Until D. Befre
( )4. Tm ____ int the huse when n ne was lking. A. slipped B. was slipping C. slip D. slips( )5. I ____ him the bk when he ____ back. A. will give, will cme B. give, cmes C. will give, cmes D. give, will cme
二、连词成句。1. get up, when, yu, wake me up, please When yu get up, please wake me up.2. she, was ill, she, when, stayed, at hme She stayed at hme when she was ill.3. when, grws up, he, wants, he, t be a dctr He wants t be a dctr when he grws up.4. I, used t, when, I, be, thin, was yung When I was yung, I used t be thin.5. he, swim, used t, in the river, when, was a child, he He used t swim in the river when he was a child.
三、将下列句子翻译成英文。我上学时总是看到这只狗。When I g t schl, I always see the dg. / I always see the dg when I g t schl.2. 昨天下雨时，汤姆待在家里。When it rained yesterday, Tm stayed at hme. / Tm stayed at hme when it rained yesterday.3. 当你取得进步时，我会给你买一份礼物。When yu make prgress, I will buy yu a present. / I will buy yu a present when yu make prgress.