初三英語總復習復合句-狀語從句

1、第42講 復合句狀語從句【復習目標】掌握狀語從句的作用。掌握狀語從句的意義。掌握各種不同類型的狀語從句?！菊n前準備】要求學生回顧引導狀語從句的各種連詞，并用不同的連詞各造一個狀語從句。【知識要點】狀語從句在句中作狀語，修飾句中的動詞、形容詞或副詞等。狀語從句由從屬連詞作關(guān)聯(lián)詞，從屬連詞在從句中不充當句子成分。狀語從句在主句之前，一般要用逗號分開，朗讀時用升調(diào)。狀語從句在主句之后，一般不用逗號，朗讀時用降調(diào)。狀語從句按其意義和作用可分為時間、條件、原因、讓步、目的、結(jié)果、方式、比較、地點等類型。1.時間狀語從句(1)常用的連詞有when, while, before, after, until(

2、till),since, as soon as等。(2)時間狀語從句中一般不用將來時，若談論將來的事情，往往用一般現(xiàn)在時代替，如：I'll go on with the work when I come back tomorrow./As soon as he finishesthe work, he will come to see me.(3)when和while都表示“當?shù)臅r候”，但有區(qū)別。when強調(diào)“特定時間”，如：There was a loud knock at the door when he was just falling asleep.while表示的時間是一段，

3、而不是一點，如：While he was having supper, he heard someone knock at the door.while有時還有對比的含義，如：While I was reading, he was writing.2.原因狀語從句(1)常由because, since, as引導。(2)because表示直接的原因，著重點在從句，用于回答why,語氣最強。I can't go to school because I am ill.since一般表示對方已知的，無須加以說明的既成事實的理由，全句中心在主句，語氣比because弱，常譯為“既然”，如：Si

4、nce you are ill, I'll go alone.as表示十分明顯的原因，一般說明因果關(guān)系，著重點在主句，語氣較弱。常譯為“由于”，如：As it is raining hard, we won't go hiking.for是個并列連詞，只能放在另一個并列分句后面，表示一種推理或解釋，或用作附加說明，而不是指理由或原因，語氣最弱，一般不放在句首，常譯成“因為”，如：You haven't met him, for he didn't come here. 3.條件狀語從句常由if(假如、如果)No matter(不管)來引導，如：No matter

5、 what he says，I won't believe him，如果主句是一般將來時，從句往往用一般現(xiàn)在時來表示將來，如：I'll go for a picnic if it is fine. 4.結(jié)果狀語從句一般由so.that, such.that引導，如：It's such a heavy box that nobody can move it.The box is so heavy that nobody can move it.5.目的狀語從句往往由so that, in order that引導，如：I'll speak slowly so th

6、at you can understand me.He set off early in order that he might be in time.6.比較狀語從句常由as.as, than, not as/so.as等引導。比較從句部分常是省略句，如：I'm taller than he (is).Science is not as popular as English.7.方式狀語從句常用as引導。如：You should do it as I told you.8.讓步狀語從句由though或although等引導，但不能與but同時連用，如：Though it snowed

7、 heavily, they kept on working.9.地點狀語從句常用where, wherever引導。如：I'll go where work is hard.【典型例題解析】例1 The question was _ difficult that nobody could answer CD#3.A. very.them B. very.it C. so.them D. so.it 解析 因為句中有that,所以前面用so,構(gòu)成sothat從句，而question是單數(shù)，用代詞it,故選D。例2 It was _that he had to ask for help.

8、A. such big work B. so big a work C. so a big work D. such big job解析 work是不可數(shù)名詞，指工作或工程，故選A。例3 He won't believe it _ he sees it with his own eyes.A. when B. after C. until D. as soon as 解析 此句是notuntil,“直到才”。故答案選C。例4 I'll go _ with you _ next Sunday.A. hunting.when I will have timeB. to hunt.u

9、ntil I'm freeC. boating.if I have nothing to doD. to boat.as I will not be so busy解析 去打獵、劃船常用go hunting, go boating，所以應在A和C中選擇，又因為when和if在句中引導狀語從句時，要用一般現(xiàn)在時表示將來，故選C。例5 It's almost three years _ I last saw her.A. since B. when C. that D. after 解析 本句表示自從上次見到她幾乎有三年了，句型It's+時間段+since從句(過去時)，故

10、選A?！具x講例題】用所給動詞適當形式填空例6 I'll go to Shanghai if I have (have) time tomorrow.And I want to know if you will have (have) time to go with me.解析 第一句中if是“假如”的意思引導狀語從句，要用一般現(xiàn)在時表示將來時，第二句中if是“是否”的意思，引導賓語從句，仍用將來時。例7 Could you tell me when he will return (return) home next week?Sorry, I can't. But I will

11、 ring you up when he returns (return) home. 解析 第一句中的when意思是“什么時候”，引導賓語從句用將來時態(tài)，第二句中的when是“當時”的意思，引導時間狀語從句，用一般現(xiàn)在時表示將來?！菊n內(nèi)追蹤練習】單項選擇(C) 1.Jack was tired _ played tennis all afternoon.A. if B. as soon as C. because D. before(B) 2.e was walking along the river _ he saw a big cat.A. while B. when C. as D.

12、which (A) 3._ he finished his work, he left hurriedly.A. As soon as B. In order that C. Until D. Since(A) 4.I'll leave him a note CD#3 he'll know where we are.A. so that B. so as C. in order D. for(C) 5._the rain has stopped, let's start again.A. For B. Because C. Since D. hat【復習小結(jié)】 1 牢記

13、引導各類狀語從句的連詞及它們的不同意義和作用。 2注意區(qū)別when（什么時侯）引導賓語從句、（當時）引導賓語從句；if（是否）引導賓語狀語從句、（假如）引導條件狀語從句； sothat、so that、suchthat 3 注意用一般現(xiàn)在時表示將來的幾種句式?！菊n外鞏固練習】一、單項選擇(A) 6.He started early _ he could get there before nine.A. in order that B. because C. so as to D. in order to(B) 7.They waited _ it was dark outside.A. sin

14、ce B. until C. so D. while(B) 8.Mike is _ boy that we all like him.A. a good so B. so good a C. a such good D. such good a(D) 9.It was _that they wanted to go for a picnic in the country.A. such a fine weather B. so fine a weatherC. a fine weather so D. such fine weather(B) 10.Mother was doing some

15、cooking _ father was reading a newspaper.A. when B. while C. whether D. since (C) 11.Ships are_ than planes that few people take them on business.A. too much slower B. very much slowerC. so much slower D. much more slower(B) 12.They had started harvesting rice _ the rain began.A. after B. before C.

16、since D. as二、在下列各句中填入適當?shù)臓钫Z從句連詞，使句子意思完整、通順13. When it rains, I go to school by bus.14. I will tell you the secret if you don't tell anyone else about it.15. Mary always takes a seat in the first row so that she can hear better.16. We didn't notice anything wrong with the computer until we sta

17、rted usingit.17.The young doctor was a bit worried because it was his first time to operate on a patient.18.We should study foreign languages as hard as Marx did.19.The elephant has so strong a body that it can do heavy work for people.20.It is such a difficult problem that nobody can work it out. 三

18、、句型轉(zhuǎn)換21.Use your head, then you'll find a way.If you use your head, you'll find a way.22.I went to bed after my father came back home yesterday.I didn't go to bed until my father came back home yesterday.23.The island is so beautiful that it can attract large numbers of people.The island

19、 is beautiful enough to attract large numbers of people.24.My dress is more expensive than Lily's.Lily's dress is not so/as expensive as mine.25.The school has been open for three years.It's three years since the school opened. 四、改錯At the entrance of a big office in London, there was a p

20、iece of papers. All men had to write their names on it when they reached each morning. At nine o'clock, a young man, which lived in a small room on the office, had to draw a red line under the last name, and whoever was coming before that had to explain to the manager. Whenever there was a thick fog in the city, the first person to arrive lately usually wrote the reason “Delayed by fog” and by then everyone else after that j