牛津九上英语课件U4-Grammar.ppt
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- 牛津 英语 课件 U4 Grammar
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1、 Words review career againstn. 生涯,职业生涯,职业prep. 对抗;与对抗;与相反;违反相反;违反 To learn to use the following conjunctions to introduce time clauses: using before, after, when and while using since, till and until using as soon as and wheneverObjectivesLook at the following sentences.1. He remained there for abou
2、t a year before the NBA took notice of him.(P51)2. After he graduated, he was forced to play in another basketball league.(P51)3. When he finally got the chance, he scored 20 points in his first game.(P50)4. While (he was) attending junior high, Spud tried out for the school team.(P50)5. Sometimes w
3、e forget when we should stop. (P37)6. It can cheer you up when you are feeling sad. (P23)7. Outside, people were running in all directions while pieces of glass and bricks were falling down.(牛津八年级上牛津八年级上U8)8. Timmy was trapped in a dark place after the earthquake stopped.(牛津八年级上牛津八年级上U8)9. He stayed
4、 with the boy and played with him for two hours before the boys parents came.(牛津七年级下牛津七年级下U7)1. He remained there for about a year _ the NBA took notice of him.(P51)2. _ he graduated, he was forced to play in another basketball league.(P51)3. _ he finally got the chance, he scored 20 points in his f
5、irst game.(P50)4. _ (he was) attending junior high, Spud tried out for the school team.(P50)5. Sometimes we forget _ we should stop. (P37)beforeAfter When Fill in the blanks.While when go Ready?6. It can cheer you up _ you are feeling sad. (P23)7. Outside, people were running in all directions _ pie
6、ces of glass and bricks were falling down.(牛津八年级上牛津八年级上U8)8. Timmy was trapped in a dark place _ the earthquake stopped.(牛津八牛津八年级上年级上U8)9. He stayed with the boy and played with him for two hours _ the boys parents came.(牛津七年级下牛津七年级下U7)whenwhileafterbefore1. _ the children have fun, parents can take
7、 dance lessons on the beach. (2013山东菏泽山东菏泽) A. When B. If C. While D. Once2. _ I got back, I found my mother cooking for me. (2013湖北黄石湖北黄石) A. When B. Before C. Since D. Although以上我们已经通过归纳总结和练习以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解,对本课的语法内容有了一定的了解,下面就让我们根据下面就让我们根据之前练习的考察情之前练习的考察情况进一步选择讲解况进一步选择讲解该语法项的重难点。该语法
8、项的重难点。时间状语从句时间状语从句是指在复合句中是指在复合句中充当时间状充当时间状语语的句子。如:的句子。如:When the weather is good, my grandpa likes going fishing.当天气好的时候,我爷爷喜欢去钓鱼。当天气好的时候,我爷爷喜欢去钓鱼。The sun came out after the storm stopped.暴风雨停止后,太阳出来了。暴风雨停止后,太阳出来了。注意:注意: 我们可以用我们可以用before, after, when和和while引导时间状语从句,这些词既可放引导时间状语从句,这些词既可放在在句首句首,也可放在,也
9、可放在句中句中。before的意思是的意思是“在在之前之前”,表示主,表示主句动作发生在从句动作之前。如:句动作发生在从句动作之前。如:Close the windows before you leave the room, please.在你离开房间前,请关上窗。在你离开房间前,请关上窗。after意思是意思是“在在之后之后”,表示主句的,表示主句的动作发生在从句的动作之后。如:动作发生在从句的动作之后。如:I went to school after I finished my breakfast.我吃完早饭去上学。我吃完早饭去上学。when意思是意思是“当当时时”,表示,表示主句动主句动
10、作发生的特定时间作发生的特定时间。如:。如:While my sister was sweeping the floor, I was washing the dishes.我姐姐扫地时,我在洗碗。我姐姐扫地时,我在洗碗。while意思是意思是“当当时时”,强调主句动作,强调主句动作和从句动作是和从句动作是同时发生的同时发生的。如:。如:The days get longer when spring comes.春天到来时,白天变长了。春天到来时,白天变长了。注意:注意:while引导的从句的引导的从句的谓语动词必须是谓语动词必须是延续性的延续性的。while还可以表示还可以表示“在在期间期间
11、”,表,表示示主句动作发生在从句动作进行的过程主句动作发生在从句动作进行的过程中中。如。如:While the boys were playing football, it rained.当男孩子们踢足球时,下雨了。当男孩子们踢足球时,下雨了。注意:注意: 在在when和和while引导的从句中,当引导的从句中,当主句和从句的主句和从句的主语一致主语一致,并且,并且从句中有从句中有be动词时动词时,可以省略主语和可以省略主语和be动词动词,构成,构成when/while+ -ing结构结构。如:。如:When (she is) in trouble, she always asks for m
12、y help.她遇到困难时总是向我求助。她遇到困难时总是向我求助。While (I am) travelling, I like to buy some souvenirs.旅游时我喜欢买纪念品。旅游时我喜欢买纪念品。David is writing in his diary about one of his days. Help him combine his sentences using before, after, when or while. (P54)A A1. I go to jogging every morning. Then I have breakfast. _ _2.
13、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 at the bus stop. _ _4. I was watching TV. I received a call from my uncle. _ _5. I was read
14、y 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 work.Look at the following sentences.1. Youve been happy since I first met you.(P48)2.
15、 Spud remained in another basketball league for about a year till/until the NBA took notice of him.(P51)3. Until his dream came true, Spud never gave up. (P55)4. Do not wake me up until you finish your work.(P48)5. It moved up over my stomach and neck until it was standing near my face. (牛津八年级下牛津八年级
16、下U4)6. Ive lived here since I was born. (牛津牛津八年级下八年级下U1)7. Theyll say “excuse me” and be polite enough to wait till you move. (牛津八年牛津八年级下级下U5) 1. Youve been happy _ I first met you.(P48)2. Spud remained in another basketball league for about a year _ the NBA took notice of him.(P51)3. _ his dream ca
17、me true, Spud never gave up. (P55)4. Do not wake me up _ you finish your work.(P48)since till/ until Until Fill in the blanks.until go Ready?5. It moved up over my stomach and neck _ it was standing near my face. (牛津八年级下牛津八年级下U4)6. Ive lived here _ I was born. (牛津八年级下牛津八年级下U1)7. Theyll say “excuse m
18、e” and be polite enough to wait _ you move. (牛津牛津八年级下八年级下U5) untilsincetill1. Tigers wait _ it is dark, then go out to find their food. (2012山东潍坊山东潍坊) A. since B. until C. as D. because2. You have been in Nanjing very long? Yeah. _ my parents came here. (2013四川内江四川内江) A. For B. As C. When D. Since以上
19、我们已经通过归纳总结和练习以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解,对本课的语法内容有了一定的了解,下面就让我们根据下面就让我们根据之前练习的考察情之前练习的考察情况进一步选择讲解况进一步选择讲解该语法项的重难点。该语法项的重难点。since, till和和until常用来引导时间状语从句。常用来引导时间状语从句。如:如:Mr Brown has been in Beijing since you left.自从你离开,布朗先生就一直待在北京。自从你离开,布朗先生就一直待在北京。I worked till/until he came back.我一直工作到他回来为止。我一直
20、工作到他回来为止。since意思是意思是“自从自从以来以来”。一般情况。一般情况下,下,从句从句谓语动词用谓语动词用一般过去时一般过去时,而,而主句主句的谓语动词用的谓语动词用现在完成时现在完成时。如:。如:注意:注意:since引导的引导的从句的谓语动词从句的谓语动词可以可以是是延续性动词延续性动词,也可以是,也可以是瞬时动词瞬时动词。They have been friends since they were at primary school.他们从小学起就一直是好朋友。他们从小学起就一直是好朋友。till和和until意思是意思是 “到到为止为止” ,一般,一般情况下两者可以互换。情况
21、下两者可以互换。until可以放在可以放在句首句首或或句中句中,而,而till不可以用在句首不可以用在句首。注意:如果主句中的谓语动词是注意:如果主句中的谓语动词是瞬时动词瞬时动词时,时,必须用否定形式必须用否定形式,即,即“notuntil”结结构,意思是构,意思是“直到直到才(开始)才(开始)”。如:。如:Walk till/until you see a white house.一直走到你看到一座白房子为止。一直走到你看到一座白房子为止。I did not go to bed until I finished my homework.直到做完作业我才上床睡觉。直到做完作业我才上床睡觉。H
22、ere are more sentences from Davids diary entry. Complete his sentences with since, till or until. (P55)B B1. I have been crazy about playing basketball _ I was a little boy.2. The weather has been awful this week. The rain did not stop _ yesterday evening, so we could not practise basketball for sev
23、eral years.sinceuntil3. 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 not go to bed _
24、I finish watching my favourite TV programme. till/untilsince till/untiluntilLook at the following sentences.1. As soon as you click the mouse, theres a great deal of information.(P49)2. and I can read them whenever I want to. (P49)3. It began to rain as soon as I left the house. (P56)1. _ you click
25、the mouse, theres a great deal of information.(P49)2. and I can read them _ I want to. (P49)3. It began to rain _ I left the house. (P56)As soon aswhenever as soon as Fill in the blanks.go Ready?I will send you an e-mail as soon as I _ in Canada. (2011 北京北京) A. arrive B. arrived C. am arriving D. wi
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