人教版八年級上冊英語期末復習必刷題-學生版-專題05 if引導條件狀語從句

人教版八年級上冊英語期末復習必刷題-學生版——專題05if引導條件狀語從句語法精講一、定義條件狀語從句★是由if等引導詞所引導的狀語從句★“條件”是指某一件事情實現之后（從句中的動作），其它事情（主句中的動作）才能發(fā)生★條件狀語從句中，引導詞所在的句子是從句，另一部分為主句?！飅f從句既可放在主句前，也可放在主句后。若if從句放在主句前，須用逗號隔開。Ifmymotherisfree,shewilltakemetothepark.=Mymotherwilltakemetotheparkifsheisfree.如果我媽媽有空，她將會帶我去公園。

二、用法在if引導的條件狀語從句中，符合以下原則：★原則1：主將從現主句是一般將來時，從句用一般現在時。Ifmybrothercomesback,hewilltakemetothepark.★原則2：主情從現

主句含有情態(tài)動詞can/may/might/must/should等，從句用一般現在時。Ifyouwanttobehealthy,youshouldkeepagooddiet.★原則3：主祈從現主句是祈使句，從句用一般現在時。Don’tplaywiththeknifeifyoudon’twanttogethurt.三、與其他句式之間的轉換(1)借助“祈使句+and/or+一般將來時的句子”這一句型來轉換。and在句意上表示順承關系,or表示轉折關系。Ifyougetupearly,you'llgetthereontime.=Getupearly,andyou'llgetthereontime.=Getupearly,oryouwon'tgetthereontime.早點起床,你就會準時到那里。借助介詞without或with來轉換條件狀語從句。Ifthereisnowater,fishwilldie.=Fishwilldiewithoutwater.如果沒有水,魚就會死。Ifyouhelpme,I'llfinishtheworksoon.=Withyourhelp,I'llfinishtheworksoon.如果你幫助我,我就會快點完成工作。if…not導的條件狀語從句,可以借助連詞unless來改寫。Youwillbelateifyoudon'tgotherebybus.=Youwillbelateunlessyougotherebybus.如果你不乘公共汽車你就會遲到。拓展：if/when引導狀語從句和賓語從句這兩種從句。從句的時態(tài)的確定。ifWhenif/when從句的時態(tài)條件/時間狀語從句如果、假如當…的時候一般現在時賓語從句是否什么時候一般將來時鞏固練習1.Canyouguessifthey___toplayfootballwithus?Ithinktheywillcomeifthey____free.A.come,areB.willcome,willbeC.willcome,areD.come,willbe2.Canyoutellmewhenhe____heretomorrow?Whenhe_____here,pleasecallme.A.comes,comesB.willcome,willcomeC.willcome,comesD.comes,willcome基礎訓練1．—DoyouknowwhenMr.Liwillmeetustomorrow?—Sorry,Idon’tknownow,butI’lltellyouifhe________.A．arrive B．reaches C．get D．arrives2．—Ifailedagain!Ifeelveryupset.—Don’tloseheart.Ifyou________going,youwillmakeitfinally!A．keep B．kept C．willkeep D．arekeeping3．Oureyesightwillbecomepoorerandpoorer________wespendtoomuchtimeplayingthephone.A．so B．before C．if D．but4．Ifit________tomorrow,Iwon’tgoshoppingwithmymom.A．rain B．rains C．doesn’train D．don’train5．—Thereisgoingtobeabasketballgamethisevening.—That’sexciting!Iwillwatchit________I’mfreethen.A．so B．but C．if D．before6．Youwillfeelhappyatschool________yougetonwellwithyourclassmates.A．though B．because C．unless D．if7．There________asportsmeetnextweekifit________.A．isgoingtohave;doesn’train B．isgoingtobe;doesn’trainC．isgoingtobe;won’train D．isgoingtohave;won’train8．________youuseyourdictionaryoften,yourspellingwillimprove.A．Whether B．If C．Though D．Unless9．Talktoyourteacherandyouwillgethelp________youhaveaproblem.A．unless B．if C．until D．before10．Iwillgoonatripwithmyclassmatesifit________tomorrow.A．won’train B．isn’training C．didn’train D．doesn’train11．—Wouldyouliketohelpmecleanthehousethisweekend?—I’dliketo________Ifinishmyhomework.A．before B．though C．if D．so12．Idon’tknowifhe________here.Ifhe________,Iwilltellyou.A．comes;comes B．willcome;willcomeC．willcome;comes D．comes;willcome13．—Manypeoplearekillingsharks(鯊魚)formoney.—Ifpeoplekeepkillingsharks,there________anyofthemintheseasomeday.A．maynotbe B．willnothave C．don’thave D．aren’t14．IwonderifSally________tomypartynextSunday.Ifshe________tomyparty,I’llbeveryhappy.A．goes,goes B．willgo,willgo C．goes,willgo D．willgo,goes15．Ifyoushareyourhappinesswithothersaroundyou,you________happier.A．feel B．willfeel C．arefeeling D．felt16．—Iwon’tgotoBill’sbirthdaypartythisFriday.—Ifyoudon’t,I_____,either.A．do B．won’t C．don’t17．What________ifhe________alotofmoney?A．willhappen,willwin B．happens;willwinC．willhappen,wins D．happens;wins18．Gotoseeadoctor________youareill.A．but B．if C．and D．or19．—Emmafailedherexams.Ithinksheshouldworkharder.—Iagree.________shedoes,she’llgetgoodgrades.A．If B．Because C．Before D．Though20．Somepeoplethinktheymaytalktoothers_________theyhaveproblems.A．though B．so C．if D．until提升訓練1．（23-24八年級上·甘肅武威·期末）—Tim,ourforeignteacherMs.GreenwillgobacktoEnglandnextweek.—Really?Let’shaveapartytosaygoodbyetoher________sheisfreethisweekend.A．unless B．if C．though D．until2．（23-24八年級上·江西吉安·期末）Don’tbringanysnackstotheparty.Ifyou________I’lltakethemaway.A．are B．willdo C．did D．do3．（23-24八年級上·湖北十堰·期末）—DidTinafinishherjob?—Idon’tknow.ButIthinkshe_______meacallifshefinishes.A．gave B．gives C．isgiving D．willgive4．（23-24八年級上·湖北·期末）—Doyouknowifyourcousinwillcometomorrow?—No.Butifhe________,Iwillcallyoutohaveamealtogether.A．come B．comes C．willcome D．iscoming5．（23-24八年級上·云南臨滄·期末）IfI________availablenextweekend,I________atriptoBeijing.A．am;take B．am;willtakeC．willbe;take D．willbe;willtake6．（23-24八年級上·陜西西安·期末）Doyouknowifit________tomorrow?Ifit________tomorrow,I’llwearmoreclothes.A．snows,willsnow B．willsnow,willsnowC．snows,snows D．willsnow,snows7．（23-24八年級上·河北石家莊·期末）________peoplehaveproblems,theyshouldtalktootherstosolvethem.A．If B．Unless C．Until D．Which8．（23-24八年級上·湖北武漢·期末）—Whatdoyouplanforthecomingwintervacation?—IfI________theexam,I________toSanyatohaveagreattime.A．pass,fly B．willpass,flyC．pass,willfly D．willpass,willfly9．（23-24八年級上·湖北孝感·期末）—Willyougotothezoowiththemtomorrow?—Yes.Butifit________,wewillwatchTVathome.A．rain B．rains C．willrain D．raining10．（22-23八年級上·四川廣元·期末）YoucantastethedeliciousYunnanRiceNoodles________yougotoYunnan.A．if B．though C．because D．unless11．（23-24八年級上·湖北武漢·期末）—DoyouknowwhenTomwillcomebacktomorrow?—Sorry,Idon’tknow.Ifhe__________back,I’lltellyou.A．comes B．come C．willcome D．maycome12．（23-24八年級上·四川廣元·期末）—HowcanIdobetterinMath?—________youthinktwicewheneveryoudoMath,youcandomuchbetter.A．Unless B．If C．However D．Can13．（23-24八年級上·甘肅武威·期末）Ican’tstanditifyou________thesamemistakeagaintomorrow.A．willmake B．makes C．aregoingtomake D．make14．（23-24八年級上·吉林松原·期末）—IfTonytothisparty,wewillhaveagreattime.—Yes.He’ssofunnythathealwaysmakesuslaugh.A．willcome B．came C．coming D．comes15．（22-23八年級上·河北廊坊·期末）—WillyougotoTom’sbirthdayparty?—Ifyou_______,I_______.A．go;go B．willgo;willgo C．willgo;go D．go;willgo16．（22-23八年級上·廣東深圳·期末）—Don’tpromiseanythingunlessyou’re100percentsure.