條件狀語從句

關(guān)于條件狀語從句第1頁，課件共42頁，創(chuàng)作于2023年2月IfyouarehappyIfyouarehappyandyouknowitclapyourhands

IfyouarehappyandyouknowitclapyourhandsIfyouarehappyandyouknowitneverbeafraidtoshowitIfyouarehappyandyouknowitclapyourhandsIfyouarehappyandyouknowitstompyourfeet.Ifyouarehappyandyouknowitstompyourfeet.IfyouarehappyandyouknowitneverbeafraidtoshowitIfyouarehappyandyouknowitstompyourfeetIfyouarehappyandyouknowitwinkyoureyeIfyouarehappyandyouknowitwinkyoureyeIfyouarehappyandyouknowitneverbeafraidtoshowitIfyouarehappyandyouknowitwinkyoureye第2頁，課件共42頁，創(chuàng)作于2023年2月Ifyouarehappy,whatwillyoudo?

IfIamhappy,Iwillsmile.第3頁，課件共42頁，創(chuàng)作于2023年2月Ifyoubecomesad,whatwillyoudo?IfIbecomesad,Iwillcry.第4頁，課件共42頁，創(chuàng)作于2023年2月Sheisdoingherhomework.Ifyouarehard-working,youwillgetgoodgrades.Shegetsgoodgrades.第5頁，課件共42頁，創(chuàng)作于2023年2月Ifyouplaycomputergamesonweekdays

,you’llbeverytiredinclassyourparentswillbesad.youwon’tgetgoodgrades.youreyeswillbepoor第6頁，課件共42頁，創(chuàng)作于2023年2月Shewillbelate.Ifshe_____toschool,she________late.Sheisgoingtowalktoschool.walkswillbeLead-in第7頁，課件共42頁，創(chuàng)作于2023年2月位置：從句可放在主句之前或之后，但是放在主句之前須有逗號隔開eg:如果我有足夠的錢，我就去環(huán)游世界If引導(dǎo)條件狀語從句定義：if

“如果,假如”它引導(dǎo)的句子表示某事發(fā)生所需的條件，即“在…條件下，某事才能發(fā)生”，在句子中充當(dāng)狀語，因此稱之為條件狀語從句。（If引導(dǎo)的條件狀語從句表示假如有從句的動作發(fā)生，就會有主句動作的發(fā)生）IfIhaveenoughmoney,Iwilltravelaroundtheworld=IwilltravelaroundtheworldifIhaveenoughmoney第8頁，課件共42頁，創(chuàng)作于2023年2月If條件句：條件句用于陳述語氣，表示假設(shè)的情況可能發(fā)生，其中if是“如果”的意思。

主句一般將來時

，從句用一般現(xiàn)在時。

第9頁，課件共42頁，創(chuàng)作于2023年2月用法：1.

如果主句是一般將來時，從句則用一般現(xiàn)在時。

Ifitrains（從句），Iwillstayathome.I’llgowithyouifyoudon’twanttogoalone（從句）.2.如果主句含有must,may,can等情態(tài)動詞，從句也要用一般現(xiàn)在時。

Ifyoudrivetoofast,youmayhaveanaccident.Youmuststopifthetrafficisred.Ifyoufinishthehomework，youcangohome．如果你作業(yè)做完了就可以回家了。

Ifyouwanttoloseweightyoumust/shouldeatlessbread.

如果你想減肥，你必須少吃面包。第10頁，課件共42頁，創(chuàng)作于2023年2月3.如果主句是祈使句，從句同樣要用一般現(xiàn)在時。Don’tgoandplayfootballifyoudon’tfinishyourhomework.PleasecallmeifhecomesnextSunday.第11頁，課件共42頁，創(chuàng)作于2023年2月1.

如果主句是一般將來時，從句則用一般現(xiàn)在時。

Ifitrains（從句），Iwillstayathome.I’llgowithyouifyoudon’twanttogoalone（從句）.2.如果主句含有must,may,can等情態(tài)動詞，從句也要用一般現(xiàn)在時。

Ifyoudrivetoofast,youmayhaveanaccident.Youmuststopifthetrafficisred.3.如果主句是祈使句，從句同樣要用一般現(xiàn)在時。

Don’tgoandplayfootballifyoudon’tfinishyourhomework.

PleasecallmeifhecomesnextSunday.if條件狀語從句結(jié)構(gòu)及時態(tài)Revision第12頁，課件共42頁，創(chuàng)作于2023年2月練一練：1。如果她早點兒起床，就有時間在家里吃早餐Ifshe________alittleearlier,she’llhavetimetoeatbreakfastathome.2。如果你參加聚會，你將會過得很開心。Ifyou____theparty,you_________agreattime.3。如果明天下雨，我們將不去野餐Ifit____tomorrow,we_______forapicnic.4。如果你經(jīng)常聽英文歌，你將會喜歡英語Ifyouoften_______Englishsongs,you______English.getsupjoin

willhaverains

won’tgolistento

willlike第13頁，課件共42頁，創(chuàng)作于2023年2月1.Ifhe____________(not,doit),I___________(do)it.2.Ifyou____(be)lateforschool,myteacher________(be)angry.arewillbe3Ifshe________(win)theprize,we_______(be)happy.winswillbe4.IfI_________(not,eat)somuch,I_________(get)thinner.5.Ifyou______(tell)them,they_____________(not,believe)you.don’teatwillgettellwon’tbelieve6I_________(stay)athome,Ifit__________(rain).7.Ifit____________(not,rain),I_________(go)out.8.we__________(play)football,Ifitis_________(sun).9.Ifshe__________(become)astar,herparents____________(not,send)heraway

10.He_________(watch)TV,ifhe______(be)free.willstayrainsdoesn’trainwillgowillplaysunnybecomeswon’tsendwillwatchisdoesn’tdowilldo第14頁，課件共42頁，創(chuàng)作于2023年2月

2.You

may______(pass)

the

exam

if

you

___(study)

hard.

rainswillstaypassstudy

3.Ifyouwanttorecord,________(press)theredlight.press1.IfIt______(rain)tomorrow,I______(stay)athome.Fillintheblanketswiththeproperform

第15頁，課件共42頁，創(chuàng)作于2023年2月1.I’msureifhe_____(go)totheparty,he________(have)agreattime.2.Iftherain_______(stop)tonight,wewillgotothecinema.3.I’llbuyacomputerifI______(have)enoughmoney.4.You_________(notget)nervousifyou_____(do)enoughexercise.6.Iwanttoknowifhe_________(come)tomorrow,ifhe_______(come),I__________(give)themassagetohim.goeswillhavestopshavewon’tgetdocomeswillcomewillgive第16頁，課件共42頁，創(chuàng)作于2023年2月IfI’mill,__________________.

IwillseeadoctorLookandsayIfI’mlate,_________________.Iwillsaysorry第17頁，課件共42頁，創(chuàng)作于2023年2月IfI’mhungry,Iwill______________.IfI’m

tired,Iwill_____________.Lookandsayeatsomefoodhavearest第18頁，課件共42頁，創(chuàng)作于2023年2月

Ifitrainstomorrow,I_____________________.willwatchTVathomeIfit_____________tomorrow,________________.I’llplaybasketballdoesn’trainIwon’t________________.playbasketball第19頁，課件共42頁，創(chuàng)作于2023年2月Ifyouarefreethisweekend,whatwillyoudo?IfIamfree,…sleepwatchTVplaycomputergamespractice第20頁，課件共42頁，創(chuàng)作于2023年2月Ifyouwanttogetgoodmarks,

dowhat?Don’tdowhat?Ifyouwanttogetgoodmarks,__________.Ifyouwanttogetgoodmarks,don’t__________.studyhardlistentoteacherscarefully.dohomeworkbyyourself.

copyyourhomework.talkintheclasscheatintheexams第21頁，課件共42頁，創(chuàng)作于2023年2月Ifyouhaveenoughpocketmoney,whatwillyoubuy?IfIhaveenoughpocketmoney,I____________________.第22頁，課件共42頁，創(chuàng)作于2023年2月IfyouinviteforeignerstoChina,wherewillyougo?Iwillgoto_________,ifIinviteforeignerstoChina.MountTaiWestlakeHainan第23頁，課件共42頁，創(chuàng)作于2023年2月GameRulesTopic1:IfIamhappy,……A:IfIamhappy,Iwillgoshopping.B:IfIgoshopping,Icanbuysomeclothes.C:IfIcanbuysomeclothes,Iwillspendmuchmoney.D:IfIspendmuchmoney,……E:…..【比一比】：一分鐘內(nèi)，根據(jù)所給話題，看同學(xué)們能接出多少條件狀語從句?！咀⒁狻吭诰渥咏育垥r，主句與從句變換時，要注意從句時態(tài)的變換，從句用一般現(xiàn)在時。第24頁，課件共42頁，創(chuàng)作于2023年2月If條件句的替代形式：

（1）祈使句+and/or+陳述句（謂語動詞通常用將來時態(tài)）。其中，and表示句意順承；or表示轉(zhuǎn)折，意為“否則”。e.g.Ifyouworkhard,you’llpasstheexameasily.=Workhard,andyou’llpasstheexameasily.Ifyoudon’tworkhard,you’llfallbehindothers.=Workhard,oryou’llfallbehindothers.verygood第25頁，課件共42頁，創(chuàng)作于2023年2月（2）用介詞with,without的替代形式：

e.g.Ifthereisnowater,thefishmaydie.

=Fishmaydiewithoutwater.Ifyouhelpme,I’llfinishmytaskontime.

=Withyourhelp,I’llfinishmytaskontime.第26頁，課件共42頁，創(chuàng)作于2023年2月Activity1Rewritethesentenceswithif:Listeninclass,oryouwon’tunderstandwhattodo.Ifyoudon’t

listeninclass,youwon’tunderstandwhattodo.1)Eatbreakfast,oryou’llgethungryatschool.2)Hurryup!We’llbelate!Ifyoudon’teatbreakfast,you’llgethungryatschool.Ifyoudon’thurryup,we’llbelate.第27頁，課件共42頁，創(chuàng)作于2023年2月Activity2.Completethesentences—Iwanttogethighscores.—If__________________________(workhard/dowell)youworkhard,youwilldowell.1.-howcanIremembermyfriends’birthdays?-If_______________________________________(keepanoteinyourdiary/notforget).2.-It’slate,butIdon’twanttogotosleep.-If_______________________________________(notgetenoughsleep/feeltiredatschool).youkeepanoteinyourdiary,youwon’tforget.youdon’tgetenoughsleep,you’llfeeltiredatschool.第28頁，課件共42頁，創(chuàng)作于2023年2月If在賓語從句中翻譯為“是否”If在條件狀語從句中翻譯為“如果”I’llgotoseeyouifIamfreenextweek.Iwanttoknowifheisateacher.whether1.if在句中的含義不同第29頁，課件共42頁，創(chuàng)作于2023年2月2.if在從句中的位置不同If引導(dǎo)的賓語從句放在主句之后；而if引導(dǎo)的狀語從句可放在主句之前也可放在主句之后=Ifitdoesn’train,Iwillgoouttomorrow.Iwillgoouttomorrowifitdoesn’train.Idon’tknowifthetrainhasarrived.

If引導(dǎo)的條件狀語從句放于句首時多用逗號隔開；而if引導(dǎo)的賓語從句則不能。第30頁，課件共42頁，創(chuàng)作于2023年2月3.時態(tài)要求上有區(qū)別If引導(dǎo)條件狀語從句的時態(tài)為一般現(xiàn)在時記住“主將從現(xiàn)”

1.Iwanttoknowifthere

asportsmeetingnextmonth.doesn’trainwillbe2.Ifit

doesn’train,we’llgooutIf引導(dǎo)的賓語從句的時態(tài)由主句及本身時態(tài)決定；第31頁，課件共42頁，創(chuàng)作于2023年2月1.Canyoutellmeifshecancometothemeeting?2.Shewillnotgothereifitisrainytomorrow.3.Ican’tguessifshewillbeangry.4.Ifwehelpeachother,wewillgetgoodresults.第32頁，課件共42頁，創(chuàng)作于2023年2月1

IfI_______________(notunderstand）,Iwillaskmyteacherforhelp.IfI__________(copy)yourhomework,Iwillcheatmyself.3Ifshe_______________(notget)upearly,she’llmisstheearlybus.4Ifyourmother_______(buy)thebookforyou,itwillbegoodforyourstudy.

don’tunderstand

copy

doesn’tget

buys第33頁，課件共42頁，創(chuàng)作于2023年2月5.Ifyou____________(notwork)hard,you_________(notpass)theexam.6.Ifyourbrother____________(break)thewindow,hewillfeelverysorryforthat.7.Ifthecomputer

(notwork),menditplease.don’tworkwon’tpassbreaksdoesn’twork第34頁，課件共42頁，創(chuàng)作于2023年2月8.Ifshe_______(notbe)interestedinmath,shewillfinditveryboring.9.Ifyou_________(get)highscores,yourparentswillbeproudofyou.10.Ifyou_________(be)happy,wewillbehappy.isn’tgetare

第35頁，課件共42頁，創(chuàng)作于2023年2月.Iwanttoknowifhe_______(come)tomorrow,ifhe_______(come),I__________(give)themessagetohim.

comeswillcomewillgive第36頁，課件共42頁，創(chuàng)作于2023年2月summaryif的用法2.引導(dǎo)條件狀語從句：譯為“如果，假如”(1)if從句+祈使句(2)if從句+主句（一般將來時）(3)if從句+主句（含有情態(tài)動詞）

1.引導(dǎo)賓語從句：譯為“是否”，表示不確定的概念。Idon’tknowifyourfathercancometogether.Canyoutellmeifmissyourparents?第37頁，課件共42頁，創(chuàng)作于2023年2月HomeworkWriting：任選一個話題，寫一篇小文章。要求：不少于字數(shù)60詞；盡可能多地用條件狀語從句來表達。第38頁，課件共42頁，創(chuàng)作于2023年2月IfyouarehappyIfyouarehappyandyouknowitclapyourhands

IfyouarehappyandyouknowitclapyourhandsIfyouarehappyandyouknowitneverbeafraidtoshowitIfyouarehappyandyouknowitclapyourhandsIfyouarehappyandyouknowitstompyourfeet.Ifyouarehappyandyouknowitstompyourfeet.IfyouarehappyandyouknowitneverbeafraidtoshowitIfyouarehappyandyouknowitstompyourfeetIfyouarehappyandyouknowitwinkyoureyeIfyouarehappyandyouknowi