If 狀語從句專項(xiàng)練習(xí)

PAGEPAGE1IFCLAUSES一：分類介紹從句從功能上可以分為兩類:（一）：表示必然發(fā)生的真理性事件，主句與從句都采用一般現(xiàn)在時(shí)，例如：1．Ifyoustickapinintoaballoon,itbursts.2．Ifwe___(lose)short-termmemory,we___(forget)thingshappeningrecently.3．Ifwe___(take)fishoutofwater,it___(die)（二）：表示可能發(fā)生的未來動(dòng)作，主句采用一般將來時(shí)時(shí)，從句一樣采用一般現(xiàn)在時(shí)，例如：1.Ifyouaskhim,hewillhelpyou.2.Ifit___(be)finetomorrow,weshallhaveapicnic.3.I___(tell)himaboutitifhecomesback.4.Ifshegetsthenews,she___(ring)meup.（三）unless=if…not…,主句采用一般將來時(shí)時(shí)，從句采用一般現(xiàn)在時(shí)1.Youwillfailtheexamunlessyouworkhard.=Youwillfailtheexamifyoudon’tworkhard.2.Wewillgoforapicnictomorrowunlessitrains.=Wewillgoforapicnictomorrowifitdoesn’train.二：相關(guān)練習(xí)（一）：用動(dòng)詞的適當(dāng)形式填空：1.Ifyouboilwater.It____(become)steam.2.Ifyouputwoodintowater,it___(float)3.Ifyouplantseedsinsoil,they___(grow).4.Ifyoudropaglass,it___(break).5.Ifyoudonotgivetheplatnswater,they___(die).6.Ifyoucoolwater,it____(turn)inotice.7.We____(have)abarbecueiftheweatherisfinethisevening.8.I____(park)thecaratthePacificPlaceunlessthecarparkthereisfull.9.Unlessthenoise___(stop)soon,Iwilltelephonethepoliceandcomplainaboutit.10.Unlessyouplaythepianoregularly,you____(improve)yourskillsinashorttime.(二)選擇填空：1.Theboy____tobed_____hismothercamehome.A.weren’t;untilB.didn’tgo;afterC.went;untilD.didn’tgo;until2.Theydidn’tstartthework____theirteachercameback.A.untilB.whileC.assoonasD.if3.Shegotuplate,_____shemissedthebus.A.soB.becauseC.thoughD.but4._____Tomisshort,____herunsfast.A.Because;soB.Although;/C.Although;butD.Though;but5._____theteachercamein,thestudentsstoppedreadingatonce.A.WhenB.WhileC.BeforeD./6._____heisill,____hecan’tgotoschool.A.Because;soB.Because;/C.So;/D./;because7.You’llbelateforschool____youdon’thurry.A.soB.ifC.afterD.although8.IfI_____free,I’llseeyoutomorrow.A.amB.willbeC.wasD./9.Doyouknowifhe____tomorrow?A.cameB.comesC.willcomeD./10.Heworksharderthan____inhisclass.A.allthestudentsB.alltheboysC.anyotherstudentD.otherstudents11.Youwillfallbehindothers____youdon’tworkhard.A.whenB.ifC.thoughD.because12.AlthoughPeterisclever,____workhard.A.hedoesn’tB.heisn’tC.buthedoesn’tD.butheisn’t13.Tomhadaheadache,___hedidn’tgototheparty.A.whyB.soC.butD.or14.____hewasdoinghishomework,thetelephonerang.A.BecauseB.IfC.WhileD.But15.Youwillstayhealthy___youdomoreexercise,suchasrunningandwalking.

A.if

B.how

C.before

D.where16.Shallwegoonworking?

Yes,____Iprefertohavearest.

A.when

B.if

C.because

D.though17.Noneofusknewwhathadhappened____theytoldusaboutit.A.when

B.until

C.after

D.though18.Iwaslateforclassyesterday____therewassomethingwrongwithmybike.

A.when

B.that

C.until

D.because19.I’llgoswimmingwithyouifI___freetomorrow.A.willbe

B.shallbeC.am

D.was20.Youshouldfinishyourlessons____yougoouttoplay.A.beforeB.after

C.when

D.while（三）:改寫句子1.Dosomesports,andyou’llbehealthy.2.Ifyoustudyhard,youwillcatchupwithyourclassmates3.Fishwilldiewithoutwater.4.Don’tstayuplate,oryou’llbesleepytomorrow.完成句子1.Ifyou_________ice___________water.(turns,/heat/it/into)2.Aballoon_________it.(pin/a/if/stick/you/bursts/into/it)3．Ifyou_________steam_________water.(into/cool/turns/it)4．Metal_________it.(you/heat/melts/if)5．Wood_________water.(you/into/put/if/floats/it)6．Aglass_________it.(drop/you/breaks/if)(1.Ifyouheatice,itturnsintowater.2.Aballoonburstsifyoustickapinintoit.3.Ifyoucoolsteam,itturnsintowater.4.Metalmeltsifyouheatit.5.Woodfloatsifyouputitintowater.6.Aglassbreaksifyoudropit.)用給下列問題提建議1.Isometimesforgettotaketherightbookstoschool.2.Iwasawayfromschooltoday.Idon’tknowwhattodoforhomework.3.Isometimesforgetwhichthingstobuyatthesupermarket.4.Ihategettingup!Ialwaysfeeltiredinthemornings.5.Idon’tknowwhatthiswordmeans.6.Thelinkmethoddoesn’thelpmemuch.Iforgetthepicturesinmymind.(1.ifyouwriteashoppinglist,youwillremembertogetallthethings.2.Ifyoutelephoneyourclassmates,theywilltellyouwhathomeworktodo.3.Ifyoucheckyourtimeableeverynight,Youwillknowwhichbooktotake.4.Ifyouthinkabouteachpicturefor10to20seconds,itwillstayinyourmindbetter.5.Ifyoulookitupinthedictionary,youwillfindoutitsmeaning.6.Ifyougotobedearlier,youwillnotfeeltiredinthemorning.)用if…not…連接下列句子1．youdoimproveyourhandwriting/youwilllosemarksintheexam2．youwillgetatoothache/youdo