4初中语法状语从句.ppt

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1、状语从句的分类状语从句的分类1.时间状语从句时间状语从句 按照引导词分类：按照引导词分类： When, while, as：当：当时，在时，在的同时的同时 When/As/While he was eating his breakfast, he heard the door bell. Since：自：自以来以来 It has been two years since I came to Beijing. 从句动词为非延续性动词从句动词为非延续性动词 when The boy cried when he saw his mother. 从句动词为延续性动词从句动词为延续性动词 while,

2、as , when均可均可 while强调强调“在在的同时的同时” as强调强调“伴随伴随”的状态的状态 Tom fell asleep while Jerry was giving a lecture辨析：辨析：when / while / as时间状语从句的破题方法时间状语从句的破题方法真题演练真题演练 （2007上海）上海）He transplanted the little tree to the garden _ it was the best time for it. A. where B. when C. that D. until扩展练习扩展练习 （2008上海）上海） Are

3、 you ready for Spain? Yes. I want the girls to experience that _ they are young. A. while B. until C. if D. before 其他引导词：其他引导词： （1）until/till 延续性动词延续性动词+肯定语气：到肯定语气：到为止为止 例：例：Walk till you come to a white house. 非延续性动词非延续性动词+否定语气：到否定语气：到才开始才开始 例：例：We didnt begin our discussion until he came back.真题演练

4、真题演练 （2003上海）上海）A good storyteller must be able to hold his listeners curiosity _ he reaches the end of the story. A. when B. unless C. after D. until扩展练习扩展练习 （2000上海）上海） My uncle _ until he was forty-five. A. married B. didnt get married C. was not marrying D. would marry真题演练真题演练 （2006上海）上海）A dozen

5、 ideas were considered _the architect decided on the design of the building. A. because B. before C. whether D. unless 辨析：两种辨析：两种since的句型的句型 （1）It be time since+非延续性动词非延续性动词 例：例：They have been friends since they met for the first time in London. 解释：主句的动作从解释：主句的动作从sincesince的那一刻持续的那一刻持续到现在（有到现在（有已经很长

6、时间了）已经很长时间了） （2）It be time since+延续性动词延续性动词 例：例：I have lived in Beijing since I worked in Shanghai. 解释：主句的动作从解释：主句的动作从sincesince引导的从句中的引导的从句中的持续性动作结束时持续到现在（没有持续性动作结束时持续到现在（没有已已经很长时间了）经很长时间了）扩展练习扩展练习 That was really a splendid evening. Its been years _ I enjoyed myself so much. A. when B. that C. bef

7、ore D. since 1.1.逻辑推理：没有逻辑推理：没有已经很长时间了已经很长时间了 2. It be since+2. It be since+延续性动词延续性动词选选D D They _ friends since they met in Shanghai. A. have made B. have become C. have been D. have turned 1.since+1.since+非延续性动词非延续性动词主句的动作延续至主句的动作延续至今今 2.2.选择四个选项中的延续性动词选择四个选项中的延续性动词选选C C2.条件状语从句条件状语从句 逻辑关系：假设逻辑关系：

8、假设 引导词：引导词： （1）假如：）假如：if, unless (if not) 例：例：You will not pass the exam unless you work hard（你不会通过考试，除非你努力学习）（你不会通过考试，除非你努力学习） = You will not pass the exam if you dont work hard（如果你努力学习，你就会通过考试）（如果你努力学习，你就会通过考试） （2）在）在条件下：条件下：in case, on condition that, provided (that), supposing, suppose (that), a

9、s long as 例例: Providing I get my fathers permission, Ill go! （只要得到父亲的同意，我就去）（只要得到父亲的同意，我就去）条件状语从句题的破题方法条件状语从句题的破题方法 1. 读题，确认从句和主句读题，确认从句和主句 2. 分析从句和主句之间的逻辑关系（正分析从句和主句之间的逻辑关系（正面条件面条件/反面条件）反面条件） 3. 根据逻辑关系选择合适的引导词根据逻辑关系选择合适的引导词 正面条件：正面条件：if, in case, on condition that, providing (that), supposing, supp

10、ose (that), as long as 反面条件：反面条件：if not, unless正面正面条件条件真题演练真题演练 （2007上海）上海）Small sailboats can easily turn over in the water _ they are not managed carefully. A. though B. before C. until D. if反面条件反面条件扩展练习扩展练习 （2007上海春季）上海春季）_ there is a snowstorm or some other bad weather, the mail always comes on

11、time. A. Because B. If C. When D. UnlessWrap Up3.让步状语从句让步状语从句让步状语从句题的破题方法让步状语从句题的破题方法真题演练真题演练 （2006上海春季）上海春季）_ most of the earths surface is covered by water, fresh water is very rare and precious. A. As B. Once C. If D. Although扩展练习扩展练习 （2008上海春季）上海春季）_ this is only a small town, its crowded with t

12、ourists who come here all year round. A. Since B. Unless C. Once D. Although 表示表示“无论无论”的让步状语从句的让步状语从句真题演练真题演练 （2008上海）上海）_well prepared you are, you still need a lot of luck in mountain climbing. A. However B. Whatever C. No matter D. AlthoughWhatever way in which you prepareNo matter how well prepa

13、red you areAlthough you prepare yourself very well _, I have to put it away and focus my attention on study this week. A. However the story is amusing B. No matter amusing the story is C. However amusing the story is D. No matter how the story is amusing真题演练真题演练 （2003上海）上海） Dad, Ive finished my assi

14、gnment. Good, and _ you play or watch TV, you mustnt disturb me. A. whenever B. whether C. whatever D. no matterWrap Up4.原因状语从句原因状语从句真题演练真题演练 （1999上海）上海） _ everybody knows about it, I dont want to talk any more. A. For B. Even C. Since D. However 5. 目的状语从句目的状语从句解释主句动作发生的目的解释主句动作发生的目的真题演练真题演练 （2000上海

15、）上海）I shall stay in the hotel all day _ there is news of the missing child. A. in case B. no matter C. in any case D. ever since扩展练习扩展练习 （2008上海春季）上海春季）Please remind me of the meeting again tomorrow _ I forget. A. though B. so that C. in case D. until6. 结果状语从句结果状语从句说明主句动作发生产生的结果说明主句动作发生产生的结果so.that

16、句型归纳：句型归纳： so + adj./adv. + that The problem was so complicated that it took them an entire week to figure it out. so + adj. (+ a/an) + n. + that There is so rapid an increase in market supply that the price starts to fall.such.that 句型归纳：句型归纳： such (+ a/an) (+adj.) + n. +that Most people go after pl

17、easure in such a hurry that they hurry past it.真题演练真题演练 （2007上海）上海）Pop music is such an important part of society it has even influenced our language. A.as B.that C.which D.where综合练习综合练习 These houses are sold at such a low price_ people expected.(2000春上海春上海) A. like B. as C. that D. which辨析 Key：看空格后

18、的句子成分是否完整：看空格后的句子成分是否完整 As a teacher, I seldom give my students so difficult a problem as they can not work out. As a teacher, I seldom give my students so difficult a problem that they can not work it out.扩展练习扩展练习 （2003上海）上海）We were in _ when we left that we forgot the airline tickets. A. a rush so anxious B. a such anxious rush C. so an anxious rush D. such an anxious rush原因原因结果结果such (+ a/an) (+adj.) + n. +thatSo anxious a rushWrap Up本课件由上海复旦托业教育提供网址：http:/ 补习班 http:/www.fudan- 中学辅导 http:/ MBA培训 http:/ 电脑培训