牛津译林版九年级英语上Unit4 Grammar课件（共18张PPT）

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1、Do you know him?,How much do you know about him?,_ he was born, he was believed to become a future basketball star.,2.08m & 1.88m,Before,Make a guess about Yao Mings legend!,When he was 9, After he took some basketball training, While (he was) attending junior high,he showed his talent in the game.

2、he joined the Shanghai Youth Team. he took some basketball training.,How to use “before” & “after”?,Before he was born, he was believed to become a future basketball star. After he took some basketball training, he showed his talent in the game.,after,before,at an earlier time than,at a later time t

3、han,You should turn off the lights _ you leave the room. = You should turn off the lights _ the room. 2. Tom went to school _ he finished his breakfast. = _ his breakfast. 3. Time passed quickly and three months went by _ I knew it. 4. The sun came out _ the storm stopped.,Fill the blanks with “befo

4、re” & “after”,before,before leaving,after,after finishing,before,after,before/after + 句子或doing形式,How to use “when” & “while”?,When he was 9, he took some basketball training. While (he was) attending the junior high, he joined the Shanghai Youth Team.,when 既指时间点，也可指一段时间；因此when引导的时间状语从句中的动词可以是终止性动词或延

5、续性动词while 只指一段时间，while从句中的动词必须是延续性动词。,The days get longer _ spring comes. _ the boys were playing football, it rained. 3. I was about to leave _ the phone rang. 4. Jack is strong _ his brother is weak. 4. _ (she is) in trouble, she always asks me for help.,Fill the blanks with “when” & “while”,when,

6、When/while,when,当主句和从句主语一致且从句中有be动词时，可省略从句的主语和be动词,while,When/while,正在此时，突然,表对比,5. While _, he received a call from his mum. the TV was on B. he was watching TV C. he watched TV D. he is watching TV,B,David is writing in his diary about one of his days. Help him combine his sentences using before, a

7、fter, when or while. (P54),A,1. I go to jogging every morning. Then I have breakfast._ 2. I practised playing basketball for hours. I felt tired out._,I go jogging every morning before I have breakfast.,After I practised playing basketball for hours, I felt tired out.,3. I met Peter. I was waiting a

8、t the bus stop._ 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._,I met Peter while (I was) waiting at the bus stop.,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

9、work.,How about his basketball career later?,_ he was 18 years old, he joined the national basketball team.,When,_ he joined the national basketball team, he has won many competitions.,Since,since在一般情况下，从句谓语动词用一般过去时，而主句的谓语动词用现在完成时的延续形。,Why is he so famous all over the world?,He _ get the chance to b

10、e a world-famous superstar _ he joined the NBA.,He _ practiced playing basketball very hard _ the year 2011, when he ended his basketball career.,didnt,until,/,until/till,until/till,until在肯定句中，主句的谓语动词必须是_动词。 他一直在工厂里工作，直到成功地写出了一部戏剧。 He _ in a factory _ _ a play. notuntil 直到才主句的谓语动词可为瞬间性动词 ( )When did

11、 you go to sleep last night? - _ I finished my homework. A. Until B. Not until C. Before D. Till,worked,until he successfully,wrote,B,延续性,B1.Practise: Fill in the blanks with since, till or until.,1.I have been crazy about playing basketball _ I was a little boy. 2.The weather has been awful this we

12、ek. The rain did not stop_ for seven days. 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. 5.I waited for 20 minutes at the bus stop_ the bus arrived. 6.It is Friday evening. I will

13、 not go to bed_ Ifinish watching my favourite TV programme.,since,until,until/till,since,until/till,until,主将从现,What did he do after he ended his career?,_(一就) he ended his career, he became a college student.,He will take part in the charity_ (任何时候) he is needed.,As soon as,whenever,注意：whenever可以用ev

14、ery time替换。,C1. Practise: Fill in the blanks with as soon as or whenever.,1. David will go to play basketball_ school is over. 2.He watches the NBA_ there is a game on TV. 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

15、 a ticket.,as soon as,whenever,As soon as,Whenever,主将从现,C2: Complete the following article with the correct conjunctions you have learnt in this unit.,Yao Ming was born in Shanghai in 1980. He got his first basketball_ he was only four years old, but he did not become serious about basketball_ he wa

16、s 12.Yao joined the Houston Rockets in 2002 and became the best Chinese player to ever play in the NBA._ he went to the USA, he knew little English, but he quickly learnt the language. The best moment in his career was in 2004-he scored 41 points in a game against the Atlanta Hawks.When Yao Ming was living in the USA, he returned to China_ he was needed. He took part in the Olympics in 2004 and in 2008 as one of the Chinese athletes._ he ended his basketball career, Yao Ming has done more charity work, especially for poor Chinese teenagers.,when,until,When/Before,whenever,After,Homework,