新译林版九年级上册英语 Unit 4 课时4 Grammar教学课件

1、Unit 4 Growing upGrammar学习目标1. 了解并掌握时间状语从句的结构。2. 掌握并能使用引导时间状语从句的连词。自 学 自 检新课导入1.感到筋疲力尽2.他职业生涯中的最佳时刻3.在一场对抗亚特兰大鹰队的比赛中4.当我在站台等待的时候，我遇见了彼得。feel tired outthe best moment in his careerin a game against the Atlanta HawksI met Peter while I was waiting at the bus stop.自 学 自 检新课导入5.直到昨天晚上，这场雨才停。 6.无论何时我想要就能

2、看书。 7.我一离开屋子，天就开始下雨。The rain did not stop till yesterday evening.I can read books whenever I want to.It began to rain as soon as I left the house.新课导入RevisionChange the following into English.上初中阶段，Spud 参加了学校篮球队的选拔。 While _ junior high, Spud _ the school basketball team.2. 他接下来成了足球队的领队。 He _ leader

3、of the football team.3. Lily更加刻苦地练习并使教练改变了主意。 Lily _ and got the coach _.attendingtried out for went on to becomepractised even harderto change his mind新课导入4. 没有大学愿意邀请他去打篮球，仅仅 因为他的身高。 No university _ basketball only _ his height.5. 在他毕业以后，他被迫在另一个篮球联盟效力。 _ he _, he _ in another basketball league.6. 通

4、过努力，他证明个头和体型真的不重要如果你决不放弃， 几乎没有什么不能做到的。 _ hard work, he _ that _ really do not _, you can do almost anything if you never _.would invite him to playbecause ofAfter graduated was forced toplay Through provedsize and body typematter give up新课讲解A Using before, after, when and while Before means earlier

5、than a certain time.e.g. He remained there for about a year before the NBA took notice of him.After means later than a certain time.e.g. After he graduated, he was forced to play in another basketball league. Grammar新课讲解When means at or during a certain time.e.g. When he finally got the chance, he s

6、cored 20 points in his first game.While means during a certain time.e.g. While (he was) attending junior high, Spud tried out for the school team. 新课讲解One of Davids daysDavid is writing in his diary about one of his days. Help him combine his sentences using before, after, when or while. I go joggin

7、g every morning. Then I have breakfast. _ I go jogging every morning before I have breakfast.新课讲解2. I practised playing basketball for hours. I felt tired out. _ _3. I met Peter. I was waiting at the bus stop. _After I practised playing basketball for hours, I felt tired out.I met Peter while I was

8、waiting at the bus stop.新课讲解4. I was watching TV. I received a call from my uncle. _ _ _ _5. I was ready to go to bed. My father came back from work. _ _While I was watching TV, I received a call from my uncle.I was ready to go to bed when my father came back from work.I was watching TV when I recei

9、ved a call from my uncle.新课讲解e.g. Youve been happy since I first met you.B Using since, till and untilSince means from a certain time. The verb in the main clause is often used in the present perfect tense.Till and until mean up to a certain time. Until can be placed at the beginning or in the middl

10、e of the sentence, but till is usually used in the middle of the sentence.新课讲解e.g. Spud remained in another basketball league for about a year till/ until the NBA took notice of him. Until his dream came true, Spud never gave up.When we use the structure notuntil, we cannot use till instead of until

11、. e.g. Dont wake me up until you finish your work.新课讲解David loves basketballHere are more sentences from Davids diary entry. Complete his sentences with since, till or until. I have been crazy about playing basketball _ I was a little boy.2. The weather has been awful this week. The rain did not sto

12、p _ yesterday evening, so we could not practise basketball for several days.sinceuntil新课讲解3. We played basketball in the playground this afternoon _ it was getting dark.4. It is the first time we have played basketball _ Monday. We enjoyed ourselves very much. until/ tillsince新课讲解5. I waited for 20

13、minutes at the bus stop _ the bus arrived.6. It is Friday evening. I will not go to bed _ I finish watching my favourite TV programme.until/ tilluntil新课讲解e.g. It began to rain as soon as I left the house.C Using as soon as and wheneverAs soon as means when something happens, or a short time after so

14、mething has happened. Whenever means at any time.e.g. I can read books whenever I want to.新课讲解More about basketballSimon is writing about Davids love for basketball. Help Simon complete his sentences with as soon as or whenever. David often goes to play basketball _ school is over.2. He watches the

15、NBA _ there is a game on TV.as soon aswhenever新课讲解3. _ he talks about basketball, he gets excited. 4. _ he learnt that the NBA players would come to China, he tried his best to get a ticket.WheneverAs soon as 课堂小结一、before, after, when, while, till, until, as soon as, whenever引导的时间状语从句中，如果主从句都是将来发生的动

16、作，主句用一般将来时，从句用一般现在时。e.g. She wont go home until she finishes her work. 语法小结语法小结二、since（自从）常与现在完成时 连用。e.g. John has worked in this factory since 1998. 三、while（当时）引导的时间状语 从句通常要用进行时。 e.g. Someone knocked on the door while I was watching TV.语法小结四、before, after, since, till, until还可作 介词，后接时间名词。e.g. befor

17、e 9 a.m. till/until today since 2009 after lunch 五、当主句和从句的主语是同一个人时 还可用：before/ after/ when/ while doing sth.e.g. Youd better not listen to music while doing your homework.语法小结六、as soon as 引导时间状语，表示 “一就”e.g. It began to rain as soon as I left there.注意：hardly (scarcely, rarely)when / before, no sooner

18、than相当于as soon as之意。主句用过去完成时，从句用一般过去时。当hardly, scarcely, rarely和no sooner位于句首时，主句应用倒装语序。语法小结e.g. He had no sooner arrived home than he was asked to start on another journey. 他刚到家，就被邀请开始另一旅程。七、till和until通常可以互换，但当“直 到”这词用于句首或与not连用时只 能用until。e.g. They didnt come back until it was dark. 当堂小练 Yao Ming w

19、as born in Shanghai in 1980. He got his first basketball (1)_ he was only four years old, but he did not become serious about basketball (2) _ he was 12. whenuntilExercisesDavid is writing about Yao Ming, his favourite basketball star. Help him complete his article with the correct conjunctions you

20、have learnt in this unit.当堂小练Yao joined the Houston Rockets in 2002 and became the best Chinese player to have ever played in the NBA. (3) _ he went to the USA, he knew little English, but he quickly learnt the language. The best moment in his career was in 2004he scored 41 points in a game against

21、the Atlanta Hawks.Before/When当堂小练 When Yao Ming was living in the USA, he returned to China (4)_ he was needed. He took part in the Olympics in 2004 and in 2008 as one of the Chinese athletes. (5) _ he ended his basketball career, Yao has done a lot of charity work, especially for poor Chinese teenagers.wheneverSince/After当堂小练 It was quiet _ those big trucks started coming through the town. A. before B. after C. until D. unless 2. It seemed only seconds _ the boy finished washing his face. A. when B. before C. after D. even if Choose the best answer.当堂小练3. I