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LanguageIfsentencesIf引導(dǎo)的條件狀語(yǔ)從句if條件狀語(yǔ)從句好用Ifyoucool
water,itturnsintoice.①②ifclause從句mainclause主句Ifsentencesif引導(dǎo)的條件狀語(yǔ)從句if條件狀語(yǔ)從句好用1.Ifyouheatmetal,itmelts.如果把金屬加熱,它就會(huì)融化。2.Waterturnsintoiceifyoucoolit.如果你冷卻水,它就會(huì)變成冰。ifclause從句mainclause主句從句主句從句主句從句在主句前時(shí),____(用/不用)逗號(hào)隔開當(dāng)主句在前時(shí),則____(用/不用)逗號(hào)不用用if條件狀語(yǔ)從句好用Ifyoudropaglass,itbreaks.Ifyouheatice,itmelts.Ifyoustandintherain,yougetwet.主句和從句都用_____________(時(shí)態(tài))因?yàn)閕f引導(dǎo)的條件句說(shuō)的是_____________一般現(xiàn)在時(shí)客觀事實(shí)/普遍現(xiàn)象if條件狀語(yǔ)從句好用Actionswithdefiniteresults讀下列例句,試著自己總結(jié)if的用法:1.Ifyouheatmetal,itmelts.如果把金屬加熱,它就會(huì)融化。2.Waterturnsintoiceifyoucoolit.如果你冷卻水,它就會(huì)變成冰。3.Ifyoustandintherain,yougetwet.如果你站在雨里,就會(huì)淋濕。4.Ifyoudropaglass,itbreaks.如果你把玻璃杯掉在地上,它就會(huì)碎。if條件狀語(yǔ)從句好用由例句我們可以知道:如果if引導(dǎo)的條件句談?wù)摰氖且环N____________時(shí),主句謂語(yǔ)動(dòng)詞便不用shall/will+動(dòng)詞原形,而直接用_______時(shí)的動(dòng)詞形式。真理/客觀事實(shí)一般現(xiàn)在if條件狀語(yǔ)從句好用ActionswithDefiniteResultsWater________(turn)intoiceifyou__________(cool)it.Ifyou________(stand)intherain,you_________(get)wet.turnscoolstandgetif條件狀語(yǔ)從句好用--b--d--g--a--h--c--f--eExerciseA1if條件狀語(yǔ)從句好用1.Ifyou___________________water.2.Aballoon_____________________it.3.Ifyou___________________water.4.Metal_____________________it.5.Wood_________________water.6.Aglass_________________it.heatice,itturnsintoburstsifyoustickapinintocoolsteam,itturnsintomeltsifyouheatfloatsifyouputitintobreaksifyoudropExerciseA2if條件狀語(yǔ)從句好用Actionswithpossibleresults讀下列例句,總結(jié)if的用法:1.Ifheruns,he’llgetthereintime.如果他跑步去,就會(huì)及時(shí)趕到那。2.Hewillhelpyouifyouaskhim.如果你請(qǐng)他幫忙,他會(huì)幫你的。3.Ifyoufailintheexam,youwilllethimdown.如果你考試失敗了,你會(huì)讓他失望的4.Ifyougetuplate,youwillbelateforschool.如果你起床晚了,上課就會(huì)遲到。if條件狀語(yǔ)從句好用由例句我們可以知道:在if引導(dǎo)的條件狀語(yǔ)從句中,如果從句談?wù)摰氖且粋€(gè)有可能發(fā)生的事實(shí)以其產(chǎn)生的相關(guān)結(jié)果,從句用_____________,主句用_______________.一般現(xiàn)在時(shí)態(tài)一般將來(lái)時(shí)態(tài)(主將從現(xiàn))if條件狀語(yǔ)從句好用I________(stay)athomeifit_______(rain)tomorrow.Ifhe____________(notcome),I_____________
(go)swimmingalone.willstayrainsdoesn’tcomewillgoActionswithPossibleResultsif條件狀語(yǔ)從句好用Ifyougetuplate,youwillbelateforschool.Lookandsaygetuplatelateforschoolif條件狀語(yǔ)從句好用Ifthetelephonerings,Iwillanswerit.Lookandsayringanswerif條件狀語(yǔ)從句好用IfI
have
alotofmoney,Iwillbuyabighouse.Lookandsayalotofmoneyabighouseif條件狀語(yǔ)從句好用hard-workingIfshe
is
hard-working,she
will
getgoodgrades.getgoodgradesLookandsayif條件狀語(yǔ)從句好用gofishing.IfitissunnythisSunday,I’llgofishing.LookandsaysunnythisSundayif條件狀語(yǔ)從句好用P105BWilliamhasfiveproblemsGivehimsomeadvicefromcolumnAandB1Isometimesforgettotaketherightbooktoschool.Ifyoucheckyourtimetableeverynight,you’llknowwhichbookstotake.if條件狀語(yǔ)從句好用一、判斷正誤,如果有誤,請(qǐng)更正1.Ifyouwilldomoreexercisethissummer,youwillbeveryfit.
2.Thecandleburns,ifyoulightit.willdo→do把逗號(hào)去掉if條件狀語(yǔ)從句好用3.IwillbuildmanyschoolsforthepoorchildrenifIwinabilliondollars.4.Ifyoufreezewater,itwillturnintoice.
5.Myunclevisitsthemuseumifhewillhavetime.正確willturn→turns visits→willvisit,willhave→hasif條件狀語(yǔ)從句好用If
的兩個(gè)意思:
If:
“如果”“是否”引導(dǎo)條件狀語(yǔ)從句引導(dǎo)賓語(yǔ)從句Idon’tknowifhewillcometomorrow.Iwillgotothecinemaifitdoesn’train.主現(xiàn)從現(xiàn)/主將從現(xiàn)if可用將來(lái)時(shí)if條件狀語(yǔ)從句好用BettywillvisittheHistoryMuseumifit____________(rain)tomorrow.Benwantstoknowifit___________(be)finetomorrow.If引導(dǎo)的條件狀語(yǔ)從句不用將來(lái)時(shí),意思為“如果”。If引導(dǎo)的賓語(yǔ)從句可以用將來(lái)時(shí),意思為“是否”。doesn’trainwillbe是否如果if條件狀語(yǔ)從句好用Exercises:
Hewillhelpmewithmymathsifhe____free.AwasBwillbeCwouldbeDisIdon’tknow_____hewillcometomorrow.____hecomes,I’lltellyou.Aif;WhetherBwhether;WhetherCif;ThatDif;If3.Pleasetellhermytelephonenumberifshe_____(want)toknow.wantsDDif條件狀語(yǔ)從句好用4.Willyoucomeandstaywithusforawhileifyou______(finish)doingyourhomework?Wangdoesn’tknowifthere_________(be)anEnglisheveningnextweek.Mikeaskedmeifwe___________(ask)anyquestionsthenextclass.Wearegoingforpicnictomorrow.I’llcallWendytomakesure________.AwhytostartBwhentostartCwhattostartDwhichtostartwouldaskfinishwillbeBif條件狀語(yǔ)從句好用8.---Wouldyoupleasetellme____next?---Thinkitover.You’llfindagoodway.AwhentodoBhowtodoCwhattodoDwheretodo9.Idon’tknowifmyuncle_____.Ifhe___,Iwillbeveryhappy.Acomes;willcomeBwillcome;willcomeCcomes;comesDwillcome;comes10.EitheryouorI_____goingtoShanghai.Onlyonepersonmaygothere.AareBwereCamDwasCDCif條件狀語(yǔ)從句好用()11.Ifit______sunnytomorrow,I____boating.
A.isgoB.willbe,go C.is,willgoD.willbe,willgo
()12.--whatwillyoudoifit______tomorrow,
--I’llstayathomeandwatchTV.
A.rainB.rainsC.willrainD.israining
CBif條件狀語(yǔ)從句好用()13.Ifhe______,I______himthetime. A.comes,tellB.willcome,willtell C.comes,willtellD.willcome,tell()14.Ifit______,it______cold. A.snows,willbeB.snows,is C.willsnow,willbeD.willsnow,is()15.Ifyou______astoneintowater,it______. A.put,sinksB.put,willsink C.willput,sinksD.willput,willsinkCBAif條件狀語(yǔ)從句好用11.He_______(help)mewithmymathsifhe____(be)free.12.Idon’tknowifJim________tomorrow.Ifhe_______,Iwillbeveryglad.(come)13._____(tell)hermytelephonenumberifshe______(want)toknow.14.Ifit____(be)sunnytomorrow,I______(go)boating.
15.Ifyou______(boil)water,it_______(turn)intosteam.16.Youcan________(travel)aroundtheworldifyou________(have)money.willhelpiswillcomecomesTellwantsiswillgoboilturnstravelhaveif條件狀語(yǔ)從句好用Translatethefollowingsentences:1.如果你請(qǐng)他幫忙,他會(huì)幫你的。Ifyouaskhim,hewillh
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