初中條件狀語從句

1、精選優(yōu)質(zhì)文檔-傾情為你奉上條件狀語從句講解及練習一、考點歸納l 由連接詞if或unless引導的狀語從句叫做條件狀語從句。（注意：在含有條件狀語從句的復合句中，如果主句是一般將來時態(tài)，從句要用一般現(xiàn)在是“主將從現(xiàn)原則”。通常譯作“假如，如果，除非”。引導詞：l 常用引導詞：if,unless1. if引導詞用法學習 if 引導的條件狀語從句的用法,現(xiàn)在總結(jié)一下: if 條件句不一般, 幾個要點記心間; 條件句,放在前, 逗號要放句中間。 條件句表可能，主句多用將來時； 條件句表事實，主句常用現(xiàn)在時。if引導的條件句有：真實條件句和非真實條件句兩種:（1） 真實條件句：表示在某種條件下某事很可能

2、發(fā)生。 Eg:a) Ifyouaskhim,hewillhelpyou.如果你請他幫忙,他會幫你的。b) Ifyoufailintheexam,youwilllethimdown.如果你考試不及格,你會讓他失望的。c) Ifitrainstomorrow,wewontgoonapicnic.如果明天下雨，我們就不去野餐。注意：切記緊跟著if的那句話是從句。（2） 非真實條件句是虛擬語氣的一種，表示與事實相反，不可實現(xiàn)的條件或根本不可能存在的條件,也就是一種虛擬的條件或假設,從句多用一般過去時或過去完成時。Eg:a) IfIwereyou,Iwouldinvitehimtotheparty.如果

3、我是你,我會邀請他參加聚會。b) IwouldhavearrivedmuchearlierifIhadnotbeencaughtinthetraffic.如果沒有堵車,我會到的早一點兒。c) IfIwereyou,Iwouldgowithhim.如果我是你,我會和他一起去的。2. unless引導詞用法（1） 固定搭配：unless=if.not除非,若不,除非在的時候。Eg:a) Youwillfailtoarrivethereintimeunlessyoustartearlier.=Ifyoudontstartearlier, youwillfailtoarrivethereintime.

4、如果你不早點動身,你就不能及時趕到那兒。b) Unlessitrains,thegamewillbeplayed.=Ifitdosentrain，thegamewillbeplayed.除非下雨,比賽將照常進行。c) Letsgooutforawalkunlessyouaretootired.d) =Ifyouarenottootired,letsgooutforawalk經(jīng)典語句：Ifitdosentraintomorrow,wewillgotothezoo.條件狀語從句就是用以表示“在某種條件下,會”二、課堂練習I 用所給詞的適當形式填空1.If you _(feel) tired, yo

5、u _ (have) to have a rest.2. Where _ he _(see) the film if he _(have) time?3. If there _(be) fewer trees, there _( be) more pollution.4. He _(dress) more casually if he _( not work) on weekends.5. If Marcia _(live) alone, she _( keep) a pet parrot.6. Lana _( buy) a new dress if the old one _(be) out

6、 of style.7.The twins _(fight) if they_(argue).8. I _(have) a bake sale if I _(need) money for education.9. Peter _( send) me a beautiful souvenir if he _(tour) Spain.10. If Mr Green _(say) I am hard- working, my parents _( feel) glad.11.I _(go) to the beach if it_ ( not rain) this week.12. _they _(

7、 have) a match if the P.E. teacher _(be) busy?13.He _(write) a letter to his grandparents if he _(get) his report card this week.14. If she _(get) up late, she _ ( not catch) the early bus.15. Peter _(major) in English if he _(pass) the exams in Peking University.15.如果他到的晚了會發(fā)生什么事情？What _ if he _ lat

8、e?16. 如果努力學習，你就會取得好成績。If you_ _, you _ good _.17. 他如果看電視太久了，他的父母會不高興。If he _ TV too much, his parents _ _ unhappy.18. 如果我們?yōu)樗M織生日聚會，大家都會來的。Everyone _ if we _ a birthday party _ him.19. 如果明天不下雨，我會和你一起去公園的。 If it _ _ tomorrow, I _ go to the park _ you.20. 如果她睡過頭了，就會旅游遲到的。She;_ the trip if she _.21. 如果他

9、有空，他會幫助你的。If he _, he _ you.22. 如果Tom考試不及格，他就沒有機會上高中了。Tom _have the _to go to the _high school if he _ the exams.23. 你如果抄同學的作業(yè)就不能學好各門功課。You _ _ good at all the subjects if you _ the other students homework. II.單項選擇1.If you _ to the party, youll have a great time. A. will go B. went C. go D. going2.

10、It will be a long time _ Peter _ his work. A. since, has finished B. after, finishes C. when, will finish D. before, finishes.3. What will father _ us from Japan? A. take B. bring C. carry D. make 4. Weifang is famous _ kites. A. for B. to C. on D. with5I _ her the answer if she _me. A. can tell, wi

11、ll ask B. will tell, will ask C. would tell, ask D. will tell, asks6. What are you going to do tomorrow?-Well go to the library tomorrow if it _. A. isnt rain B. rain C. wont rain D. doesnt rain7.Do you know when he will come back tomorrow?-Sorry, I dont know. When he _ back, Ill tell you. A. comes

12、B. will come C. come D. may come 8. What will you do if you _ to the old folks home visit?A. go B. went C.going D. will go9. If I eat _ food, Ill be very fat.A. too many B. many too C. too much D. much too10. Ill give the book to him if he _ here next Sunday.A. will come B. comes C. is coming D. cam

13、e11. There _an English film in our school tomorrow.A. is going to have B. will have C. is going to be D. has12. Could you tell us where _？A. will the next Olympic Games held B. the next Olympic Games will be heldC. would the next Olympic Games be held D. the next Olympic Games would be held13. When my mother returned last night, I _ a book. A. read B. am reading C. was reading D. am going to