af 引导的条件状语从句讲解与练习If 引导条件状语从句的条件状语从句最常用的连词是 if,常见的 if 条件状语从句表示在某条件下，某事很可能发生，条件是可能存在的。如：Ifyouaskhim,hewillhelpyou■如果你请他帮忙，他会帮你的。Ifyoufailintheexam,youwilllethimdown.如果你考试不及格，你会让他失望的。Ifyouhavefinishedthehomework,youcangohome.如果你作业做完了就可以回家了。1 ■if 从句用一般现在时，主句用一般将来时Ifherunshe'llgetthereintime.如果他用跑的，他就会及时赶到那儿。Thecatwillscratchyouifyoupullhertail.如果你拉猫的尾巴，它就会抓你。2 .if 从句用一般现在时，主句用 may/might/can/must/shouldIfitstopssnowingwecangoout.如果雪停了，我们就可以出去。Ifyouwanttoloseweightyoumust/shouldeatlessbread.如果你想减肥，你必须少吃面包。（另外，if 从句还表示不可实现的条件或根本不可能存在的条件，也就是一种虚拟的条件或假设。从句多用一般过去时或过去完成时，表示对现在或过去的一种假设。如：IfIwereyou,Iwouldinvitehimtotheparty.如果我是你，我会邀请他参加聚会。IwouldhavearrivedmuchearlierifIhadnotbeencaughtinthetraffic.要不是交通堵塞，我本会来得早一些。）If 条件状语从句练习()1.IfIfindhisphonenumber,Iyou.A. tellB.toldC.willtellD.havetolda()2.I__theCDstoyouifIhavetimetomorrow.A.willreturnB.returnedC.havereturnedD.return()3.ThestudentswillgototheSummerPalaceifittomorrow.A. won'trainB.isn'trainingC.doesn'trainD.isn'train()4.Iwon'twatchtheTVplayifmyfather___medomyhomework.A. letB.willletC.won'tletD.lets()5.Ifyou___quiet,I'lltellyouwhathappened.A. willB.areCaretobeDbe()6.Ifyougototheparty,you___agoodtime.A. wouldhaveB.haveC.willhaveD.had()7.Don'tworry.PeterwillcallyouassoonasheLondon.A. willgettoB.getstoC.gettoD.gotto()8.Hedoesn'ttellmewhenhe__.I'lltelephoneyouassoonasheA. willcome,comesB.willcome,willcomeC.comes,willcomeD.comes,comes()9.--Idon'tknowifDr.Whitetothepartynextweek.——Ithinkhewillcomeifhefree.A. comes;willcomeB.willcome;willbeC.comes;isD.willcome;is()10.Idon'tknowifthereasportsmeetingnextmonth.Iftheyit,Imustgetreadyforit.A.is;willholdB.willbe;holdC.willbe;willholdD.willhave;...
