Unit 10 第2课时 Section A (2d-3c)(教学课件)八年级英语上册（人教版）

Unit10

Ifyougototheparty,you’llhaveagreattime!SectionA2d-GF情景导入0102语法探究03应用实践04迁移创新05回顾总结06考点速递07随堂小练08家庭作业CONTENT

语言能力能够在多种语境中，通过观察归纳、交流合作等方式，正确理解和使用第一条件句If...will...谈论事情结果的用法和情态动词should提建议的用法，并适当了解that引导的宾语从句学习能力能在学习活动中积极与他人合作，共同完成学习任务；能在学习过程中积极思考，主动探究，发现并尝试使用多种策略解决语言学习中的问题，积极进行拓展性运用文化意识能够通过If...will...结构的学习，懂得只要一步步努力，梦想终将会实现的道理，形成积极的学习态度和正确的人生观思维品质能够在老师的引导下，通过观察、讨论、归纳等课堂活动，探究第一条件句If...will...谈论事情结果的语言规律，提高思维的逻辑性和深刻性，加强语言表达的准确性学习目标LearningObjectives01情景导入ScenarioimportJeff:Hey,Ben.Forthepartynextweek,shouldweaskpeopletobringfood?Ben:No,let’sorderfoodfromarestaurant.Ifweaskpeopletobringfood,they’lljustbringpotatochipsandchocolatebecausethey’llbetoolazytocook.Readtheconversationin2d.Jeff:Ok.Forthegames,doyouthinkweshouldgivepeoplesomesmallgiftsiftheywin?Ben:Ithinkthat’sagreatidea!Ifwedothat,morepeoplewillwanttoplaythegames.Jeff:Yes,thegameswillbemoreexciting,too.Readtheconversationin2dandtrytofindouttheanswersquickly.Whatwillhappeniftheyaskpeopletobringfood?2.Whatwillhappenifwegivepeoplesomesmallgiftsiftheywin?They’lljustbringpotatochipsandchocolatebecausethey’llbetoolazytocook.Morepeoplewillwanttoplaythegamesandthegameswillbemoreexciting.Fillintheblanksaccordingtotheconversation.ideasconsequencesfoodaskpeopletobringfoodThey’lljustbringpotatochipsandchocolate.______________________games_________________________________wanttoplaythegamesthegameswillbe__________orderfoodfromarestaurantgivepeoplesomesmallgiftsiftheywinmorepeoplemoreexcitingRole-playtheconversation.2dJeff:Hey,Ben.Forthepartynextweek,shouldweaskpeopletobringfood?Ben:No,let’sorderfoodfromarestaurant.Ifweaskpeopletobringfood,they’lljustbringpotatochipsandchocolatebecausethey’llbetoolazytocook.Jeff:Ok.Forthegames,doyouthinkweshouldgivepeoplesomesmallgiftsiftheywin?Ben:Ithinkthat’sagreatidea!Ifwedothat,morepeoplewillwanttoplaythegames.Jeff:Yes,thegameswillbemoreexciting,too.语法探究Grammarfocus02Trytofindouttherules.你可以分别找到主句和从句吗？一起来试试吧！sleepswillstudieswilleatswill主句从句Ifshe_______

early,she______

beabletogetupearly.Ifshe_________

hard,she______

bethefirst.Ifshe_______

healthyfood,she_______

befit.CONDITIONALTrytofindouttherules.你可以总结出主句和从句使用的时态吗？一起来学习吧！考点1IfclauseMainclauseIf

+

______________________________一般现在时一般将来时Trytofindouttherules.你可以总结出主句和从句使用的时态吗？一起来学习吧！考点2IfclauseMainclauseIf

+

______________________________一般现在时情态动词Trytofindouttherules.你可以总结出主句和从句使用的时态或句型吗？一起来学习吧！考点3IfclauseMainclauseIf

+

______________________________一般现在时祈使句Trytofindouttherules.Ifyoudo,youwillbelate.IthinkIwillstayathome.Ifyoudo,youwillbesorry.Iftheyhaveittoday,halftheclasswon'tcome.Ifweaskpeopletobringfood,they’lljustbringpotatochipsandchocolate.1.这些句子的表意功能是什么?2.连接主句和从句的连词是什么?它的含义又是什么?3.主句和从句时态分别是什么?4.”Ifyoudo”,do代替什么？对事情的结果进行预测。if，如果。主句将来时，从句一般时。do代替前面动词。Grammarif

引导的宾语从句if

引导的条件状语从句含义是否如果位置主句+

if

...If

...,+主句/主句+

if

...时态主句现在，从句随便主句过去，从句随变主句将来，从句现在，即“主将从现”例句Iwonderifitwillraintomorrow.Iwonderedifhewasfree.Iwillstayathome

ifitrains

tomorrow.Grammar类别构成例句简单句TheSimpleSentence由一个主语（或并列主语）和一个谓语（或并列谓语）构成的句子。Igetupatsixinthemorning.MymotherandIoftengoshopping.Somestudentswalkorridebikestoschool.复合句TheComplexSentence由一个主句和一个或多个从句构成的句子。Whatdoyouwanttobewhenyougrowup?Ithink(that)

ScreenCityhasthemostcomfortableseats.句子的类型Grammar状语从句（AdverbialClause）是指句子用作状语时，起副词作用的句子。状语从句根据其作用可分为时间、地点、原因、条件、目的、结果等从句。状语从句一般由连词(从属连词)引导，也可以由词组引起。WhileJohnwaswatchingTV,hiswifewascooking.（时间状语从句）当约翰看电视时，他的妻子正在做饭。Hedidn’tattendclassesyesterdaybecausehewasill.（原因状语从句）他病了，所以他昨天没有来上课。Hegotupsoearlythathecaughtthefirstbus.（目的状语从句）他很早起床以便赶上第一班公共汽车。We’llstartourprojectifthepresidentagrees.（条件状语从句）如果总统同意，我们将开始我们的项目。状语从句Grammarif引导的条件状语从句在复合句中作条件状语的句子叫条件状语从句。条件状语从句常用if来引导。If从句既可放在主句前，也可放在主句后。放在主句前，要用“,”与后面的主句隔开。语法概述Grammarif条件句放在前，逗号要放主句前。if条件句表如果，主将从现是关键。if引导的条件状语从句一.含条件状语从句的复合句中主从句的时态

主句为以下情况之一时，条件状语从句用一般现在时：（1）主句是一般将来时。Ifitdoesn’traintomorrow,wewillgotothezoo.（2）主句谓语部分含有情态动词（may,might,can,must,should等）。Ifyoueat

badfood,youmayfallill.（3）主句为祈使句。Ifthelightisred,waitforaminute.经典例句！巧学妙记Grammar二.有些句子可与含if条件状语句互相转换。（1）祈使句+and/or+陈述句。Hurryup,oryou’llmissthetrain.=If

youdon’thurryup,you’llmissthetrain.Youwillbehealthierifyoueatwell.=Eatwellandyouwillbehealthier.（2）借助with或without。Youcan’tdrivethecarwiththedooropen.=Youcan’tdrivethecarifthedoorisopen.Ifthereisnowater,fishwilldie.=Fishwilldiewithout

water.

if引导的条件状语从句应用实践

ApplicationPractice03Fillintheblankswiththecorrectformsoftheverbsinbrackets.3aDearSuMei,Idon’t______(know)whatto____(do)aboutgoingtoMike’sbirthdaypartytomorrownight.Myparents______(think)IshouldstudyformyEnglishexamnextweek.IfI____(go)totheparty,they_______(be)upset.Mike______(tell)ustowearniceclothes,butIdon’t______(have)any.IfI_____

(wear)jeans,I_________(look)theworst.Also,I’mnotsurehowto_____(go)totheparty.IfI______(walk),it__________(take)metoomuchtime.IfI________(take)ataxi,it_________(be)tooexpensive.Canyougivemesomeadviceplease?TinaknowdothinkgowillbetoldhavewearwilllookgowalkwilltaketakewillbeReadthepassagequicklyandfindouttheanswersbelow.1.

Whowrotethisletter?

Tina.2.

Whoisthisletterfor?

SuMei.3.

Whydoesshewritetheletter?

Sheneedssomeadvice.4.

Whatworriesdoesthewriterhave？

Togoornottogototheparty,whattowear,and

howtogetthere.IfyouwereSuMei,What’syouradviceforTina?IfTinapromisestostudyfortheexamatothertime,herparentswillnotbeupset.IfTinawearssmarttrousers,shewon’tlooktheworst.IfTinatakesthebusandstartsoutealier,itwillbeOK.Tinacanrefusestogotothepartyifshestillhastoomanyworries....3bCompletethesentencesusingyourownideas.1.IfIgetuplatetomorrow,___________________________2.IfIdon’tfinishmyhomework,______________________3.IfIdon’tgetenoughexercise,_______________________4.Iwillnothaveenoughtimetostudyif____________________________________________5.Iwillnotmakeanyfriendsif_______________________________________I’llbelateforschool.mymotherwillbeupset.Idon’tgetalongwithmypartners.迁移创新MigrationInnovation04Nowlet'splayan“if”gameingroups.IfIhavea

holidaytomorrow,

Iwill

__________.behappyIfIamhappy,Iwill

______.IfI_______,Iwill

______.…Let’swrite.(Chooseone)_________________________________________________________Iwillhaveahappylife._________________________________________________________Chinawillbestrongerandstronger.Writeastorywithyourgrouponapieceofpaper.Thefirstpersonbeginsthestorywith“IthinkIwill…”Theothersaddsentenceswith“if”.Passthepaperaroundtwice.Thenreadthestoryinclassanddecideonthemostinterestingstory.IthinkIwillgotothemoviestonight.IfIgotothemovies,Iwon’tfinishmyhomework.IfIdon’tfinishmyhomework…3c回顾总结Summary05Summaryif条件状语从句用法表示主句动作发生所需要的条件。位置主句在前，从句在后，