If引導(dǎo)的條件狀語從句_百度文庫(精)

1、If引導(dǎo)的條件狀語從句潘店鎮(zhèn)中學(xué)語芒 川引導(dǎo)的條件狀語從句例句：If people obey the traffic rules,-從句there will be fewer accidents主句if：從屬連詞，意思是：“如果，假如，倘若”原句可改為:There will be fewer ifpeople obey the-結(jié)構(gòu)：也可以放在句子后從句位于主句之前時(shí)，例句：If people obey the traffic rules,there will be fewer accidents.時(shí)態(tài)嚴(yán)主將從現(xiàn)”if引導(dǎo)的條件狀語從句，主句用一般將來時(shí)（will），從句用一般現(xiàn)在時(shí)。T 主句

2、謂語中也可以含有情態(tài)動詞，如：must,can,could,should等占例句：如果交通指示燈是紅的，你必須 eg:lf the trafficlights are red,you musst主句謂語中也可以用had better（0Ot例句：如果你想減肥，你最好鍛就蘭 eg:If you want to loseweightyou haTtieexercise.if的反義詞:if.not.=unless,意思是： “如果不， 除非”I won t go there unless I hear from you.（同義if句）don9tI won t go there_ I_ hear fr

3、om you.I won t go to the party if I am not invited（同義句）unlessI won t go to the partyan（變換:1有if引導(dǎo)的條件狀語從句的復(fù)合句中，當(dāng)主句和從句的主語均為you時(shí)，可轉(zhuǎn)換為“祈使句，and+簡單句”或“祈使句，o”簡單句”You can pass the exam if you workhard.If you dont hurry up,you will2.借助介詞with或without來轉(zhuǎn)換。 例如：If you help me, P II finish my job soon.Wurher| finis

4、h my job soon.如果你幫我，我將很快完成我的工作。If there is no water, fish may die.without waterFish may die -如果沒有水，魚可能會死。WorkHurry up,- you注意事項(xiàng)例如：IMI help you with your English if I am freetomorrow.果唄夫我有空，莪會稱你孕英 語Q 2注if引導(dǎo)的條件狀語從句中不能夠使用some,而要用any。例如If you have any questions to ask, please come tomy office 如果你有問題要問的

5、岳，請到我辦公室乗。就引導(dǎo)的條件狀語從句和嚀引導(dǎo)的 賓語以句的區(qū)分:：If在賓語從句中翻譯為“是否”Pll go to see you if I am free next week.If在條件狀語從句中翻譯為“如果”聚騁，幣加谿聶willoI want to knowhe is a teacher.whethI donJt know if the train has arrived.I will go out tomorrow if it doesnt rain. If itdoesnt rain, I will go out tomorrow.If引導(dǎo)的賓語從句放在主句之后；而if弓I導(dǎo)的狀

6、語從句可放在主句之前也可放在主 句之后If引導(dǎo)的條件狀語從句放于句首時(shí)多用逗號隔開;而if引導(dǎo)的賓語從句則不能。找出下列句子中哪些是if條件狀語從句. 哪些是if賓語從句1. Can you tell me if she can come to themeeting ?tomorrow.3.1 cant guess if she will be angry .2 Shgoth4. If we help each other3we both will getgood results .1want to know if there_asports meeting next month.If引導(dǎo)的賓

7、語從句的時(shí)態(tài)由主句及本身時(shí)態(tài)決定;2f it_, well hold itIf引導(dǎo)條件狀語從句的時(shí)態(tài)為一般現(xiàn)在時(shí)記住“主將從現(xiàn)”If引導(dǎo)的條件狀語從句的練習(xí)1 If Idoift understand(not understand ), I willask my teacher for help 2 If I_ (copy ) your homework ,I will cheat myself 3 If she_ (not get) upearly5shell miss the early bus .4 If your motherbuys(buy) the bookfor you , it

8、 will be good for your study.5. If you_ (not work ) hard ,you_(not pass) the exam.6. If shemends(mend) the computer , herfather won WbS (not blame ).7. If your brother_(break) thewindow , he will feel very sorry for that 8. If the computer z i_ (not work),mend it please 9. If shefSn i(not be) intere

9、sted in math, shewill find it very boring 10.If you_ (get) high scores,your parents will be proud of you 11.If you_ (be) happy , we willbe happy 12.If she_(translate ) thesentence word by word , she_ (get)its true meaning hlfyou_to the party, youll have a greattime.A. will go B. went C go D. going2.I_ her the answer if she_me A.can tell, will ask B. will tell, will askC. would tell, ask D. will tell, asks3.一What are you going to do tomorrow?-Well go to the library tomorrow i