人教版八年級(jí)英語(yǔ)上冊(cè)IF引導(dǎo)的條件狀語(yǔ)從句課件

狀語(yǔ)從句If

引導(dǎo)的條件狀語(yǔ)從句狀語(yǔ)從句If引導(dǎo)的條件狀語(yǔ)從句1什么是狀語(yǔ)？HespeaksEnglishverywell.

Youareverybeautiful.（動(dòng)詞）（形容詞）（程度副詞）主語(yǔ)謂語(yǔ)賓語(yǔ)狀語(yǔ)什么是狀語(yǔ)？HespeaksEnglishveryw2

用來修飾動(dòng)詞，形容詞，副詞以及全句的句子成分，叫做狀語(yǔ)。用作狀語(yǔ)的通常是副詞，介詞短語(yǔ)，不定式和從句等。用來修飾動(dòng)詞，形容詞，副詞以及全句的句子成分，叫做狀3狀語(yǔ)從句在復(fù)合句中表示的狀語(yǔ)可以用來修飾謂語(yǔ)（包括非謂語(yǔ)動(dòng)詞）、定語(yǔ)、狀語(yǔ)或整個(gè)句子。

狀語(yǔ)從句在復(fù)合句中表示的狀語(yǔ)4狀語(yǔ)從句分類1時(shí)間狀語(yǔ)從句9結(jié)果狀語(yǔ)從句6讓步狀語(yǔ)從句8方式狀語(yǔ)從句7比較狀語(yǔ)從句2地點(diǎn)狀語(yǔ)從句3原因狀語(yǔ)從句4條件狀語(yǔ)從句5目的狀語(yǔ)從句狀語(yǔ)從句分類1時(shí)間狀語(yǔ)從句9結(jié)果狀語(yǔ)從句6讓步狀語(yǔ)從句8方5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(hào)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(yǔ)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(yǔ)，因此稱之為條件狀語(yǔ)從句。（If引導(dǎo)的條件狀語(yǔ)從句表示假如有從句的動(dòng)作發(fā)生，就會(huì)有主句動(dòng)作的發(fā)生）IfIhaveenoughmoney,Iwilltravelaroundtheworld.=IwilltravelaroundtheworldifIhaveenoughmoney.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(hào)隔開6If條件句：條件句用于陳述語(yǔ)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(shí)

，從句用一般現(xiàn)在時(shí)。

構(gòu)成條件從句主句時(shí)態(tài)If＋一般現(xiàn)在時(shí)主語(yǔ)＋shall/will+動(dòng)詞原形例句Ifhecomes,hewilltakeustothezoo.If條件句：條件句用于陳述語(yǔ)氣，表示假設(shè)的情況可能發(fā)生，構(gòu)71.

如果主句是一般將來時(shí)，從句則用一般現(xiàn)在時(shí)。Ifitrains（從句），Iwillstayathome.I’llgowithyouifyoudon’twanttogoalone（從句）.2.如果主句含有must,may,can等情態(tài)動(dòng)詞，從句也要用一般現(xiàn)在時(shí)。

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。1.如果主句是一般將來時(shí)，從句則用一般現(xiàn)在時(shí)。83.如果主句是祈使句，從句同樣要用一般現(xiàn)在時(shí)。Don’tgoandplayfootballifyoudon’tfinishyourhomework.PleasecallmeifhecomesnextSunday.3.如果主句是祈使句，從句同樣要用一般現(xiàn)在時(shí)。9If引導(dǎo)的條件狀語(yǔ)從句的基本用法:主句從句一般將來時(shí)一般現(xiàn)在時(shí)祈使句一般現(xiàn)在時(shí)含情態(tài)動(dòng)詞一般現(xiàn)在時(shí)If引導(dǎo)的條件狀語(yǔ)從句的基本用法:主句從句一般將10練一練：1。如果她早點(diǎn)兒起床，就有時(shí)間在家里吃早餐Ifshe________alittleearlier,she’llhavetimetoeatbreakfastathome.2。如果你參加聚會(huì)，你將會(huì)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(huì)喜歡英語(yǔ)Ifyouoften_______Englishsongs,you_______English.getsupjoinwillhaverainswon’tgolistentowilllike練一練：getsupjoin111.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’tdowilldo1.Ifhe____________(not,doi121.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’tgetdocomeswillcomewillgive1.I’msureifhe_____(go)to13I__________(record)theCDforyoutomorrow.Doessheoften_______(lend)moneytoherbrother?Thesnake___________(notappear)ifyoumakenoise.Inthefinalexam,I_______(get)goodmarks.willrecordlendwon’tappear

willgetI__________(record)theCDfo142.You

may______(pass)

the

exam

if

you

___(study)

hard.

rainswillstaypassstudy3.Ifyouwanttorecord,________(press)theredlight.press1.IfIt______(rain)tomorrow,I_________(stay)athome.Fillintheblanketswiththeproperform

2.You

may______(pass)

15用括號(hào)內(nèi)所給詞的正確形式填空1.Iftherain_______(stop)tonight,wewillgotothecinema.2.I’llbuyacomputerifI______(have)enoughmoney.3.You_________(notget)nervousifyou_____(do)enoughexercise.4.Ifshe____(be)kindtome,I____________(notargue)withher.5.Iwanttoknowifhe_________(come)tomorrow,ifhe___________(come),I__________(give)themassagetohim.stopshavewon’tgetdoiswon’targuewillcomecomeswillgive用括號(hào)內(nèi)所給詞的正確形式填空1.Iftherain__16IfI’mill,__________________.

IwillseeadoctorLookandsayIfI’mlate,_________________.IwillsaysorryIfI’mill,Iwillseeadoctor17IfI’mhungry,Iwill______________.IfI’m

tired,Iwill_____________.LookandsayeatsomefoodhavearestIfI’mhungry,IfI’mtired,Lo18

Ifitrainstomorrow,I_____________________.willwatchTVathomeIfit_____________tomorrow,________________.I’llplaybasketballdoesn’trainIwon’t________________.playbasketball

Ifitrainst19狀語(yǔ)從句If

引導(dǎo)的條件狀語(yǔ)從句狀語(yǔ)從句If引導(dǎo)的條件狀語(yǔ)從句20什么是狀語(yǔ)？HespeaksEnglishverywell.

Youareverybeautiful.（動(dòng)詞）（形容詞）（程度副詞）主語(yǔ)謂語(yǔ)賓語(yǔ)狀語(yǔ)什么是狀語(yǔ)？HespeaksEnglishveryw21

用來修飾動(dòng)詞，形容詞，副詞以及全句的句子成分，叫做狀語(yǔ)。用作狀語(yǔ)的通常是副詞，介詞短語(yǔ)，不定式和從句等。用來修飾動(dòng)詞，形容詞，副詞以及全句的句子成分，叫做狀22狀語(yǔ)從句在復(fù)合句中表示的狀語(yǔ)可以用來修飾謂語(yǔ)（包括非謂語(yǔ)動(dòng)詞）、定語(yǔ)、狀語(yǔ)或整個(gè)句子。

狀語(yǔ)從句在復(fù)合句中表示的狀語(yǔ)23狀語(yǔ)從句分類1時(shí)間狀語(yǔ)從句9結(jié)果狀語(yǔ)從句6讓步狀語(yǔ)從句8方式狀語(yǔ)從句7比較狀語(yǔ)從句2地點(diǎn)狀語(yǔ)從句3原因狀語(yǔ)從句4條件狀語(yǔ)從句5目的狀語(yǔ)從句狀語(yǔ)從句分類1時(shí)間狀語(yǔ)從句9結(jié)果狀語(yǔ)從句6讓步狀語(yǔ)從句8方24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(hào)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(yǔ)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(yǔ)，因此稱之為條件狀語(yǔ)從句。（If引導(dǎo)的條件狀語(yǔ)從句表示假如有從句的動(dòng)作發(fā)生，就會(huì)有主句動(dòng)作的發(fā)生）IfIhaveenoughmoney,Iwilltravelaroundtheworld.=IwilltravelaroundtheworldifIhaveenoughmoney.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(hào)隔開25If條件句：條件句用于陳述語(yǔ)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(shí)

，從句用一般現(xiàn)在時(shí)。

構(gòu)成條件從句主句時(shí)態(tài)If＋一般現(xiàn)在時(shí)主語(yǔ)＋shall/will+動(dòng)詞原形例句Ifhecomes,hewilltakeustothezoo.If條件句：條件句用于陳述語(yǔ)氣，表示假設(shè)的情況可能發(fā)生，構(gòu)261.

如果主句是一般將來時(shí)，從句則用一般現(xiàn)在時(shí)。Ifitrains（從句），Iwillstayathome.I’llgowithyouifyoudon’twanttogoalone（從句）.2.如果主句含有must,may,can等情態(tài)動(dòng)詞，從句也要用一般現(xiàn)在時(shí)。

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。1.如果主句是一般將來時(shí)，從句則用一般現(xiàn)在時(shí)。273.如果主句是祈使句，從句同樣要用一般現(xiàn)在時(shí)。Don’tgoandplayfootballifyoudon’tfinishyourhomework.PleasecallmeifhecomesnextSunday.3.如果主句是祈使句，從句同樣要用一般現(xiàn)在時(shí)。28If引導(dǎo)的條件狀語(yǔ)從句的基本用法:主句從句一般將來時(shí)一般現(xiàn)在時(shí)祈使句一般現(xiàn)在時(shí)含情態(tài)動(dòng)詞一般現(xiàn)在時(shí)If引導(dǎo)的條件狀語(yǔ)從句的基本用法:主句從句一般將29練一練：1。如果她早點(diǎn)兒起床，就有時(shí)間在家里吃早餐Ifshe________alittleearlier,she’llhavetimetoeatbreakfastathome.2。如果你參加聚會(huì)，你將會(huì)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(huì)喜歡英語(yǔ)Ifyouoften_______Englishsongs,you_______English.getsupjoinwillhaverainswon’tgolistentowilllike練一練：getsupjoin301.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’tdowilldo1.Ifhe____________(not,doi311.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’tgetdocomeswillcomewillgive1.I’msureifhe_____(go)to32I__________(record)theCDforyoutomorrow.Doessheoften_______(lend)moneytoherbrother?Thesnake___________(notappear)ifyoumakenoise.Inthefinalexam,I_______(get)goodmarks.willrecordlendwon’tappear

willgetI__________(record)theCDfo332.You

may______(pass)

the

exam

if

you

___(study)

hard.

rainswillstaypassstudy3.Ifyouwanttorecord,________(press)theredlight.press1.IfIt______(rain)tomorrow,I_________(stay)athome.Fillintheblanketswiththeproperform