Unit+10+Section+A+Grammar+Focus-3c 人教版八年级英语上册

Unit10Ifyougotoparty,you’llhaveagreattime!GrammarFocus-3cLet’senjoyasongandfindouttheif-clauses!WarmupIf引导的条件状语从句ConditionalsentencesReviewIfyougotothepartywithKarenandAnna,you_________(have)agreattime.Ifyou________(wear)jeanstotheparty,theteachers__________(notlet)youin.wearwon’tletwillhaveIfyou_____(take)thebustotheparty,you________(be)late.Ifyou________(notgo)totheparty,you________(be)sorry.takewillbedon’tgowillbeLookandsaySentencepatterntransformation.Heisgoingtowalktoschool.Hewillbelate.Wecansay:Ifhe_______toschool,he_________late.walkswillbeWecanalsosay:He_________lateifhe_______toschool.walksTips:if在主句前，用逗号隔开。if在主句后，则不用逗号。willbe从句主句LookandsaySentencepatterntransformation.Itisgoingtoraintomorrow.Iwillstayathome.

Ifit_____tomorrow,I__________athome.

rainswillstayWecansay:Wecanalsosay:I__________athomeifit_____tomorrow.rainswillstay从句主句PracticeIfit____

sunnytomorrow,they___________atrip.Itwillbesunnytomorrow.Theywillhaveatriptomorrow.iswillhaveIfhe_______studyhard,he_________theexam.doesn’twillfailHewillfailtheexam.Hewon’tstudyhard.PresentationGrammarFocusWhile-GrammarReadthesentencesandtranslatethem.IthinkI’lltakethebustotheparty.Ifyoudo,you’llbelate.IthinkI’llstayathome.Ifyoudo,you’llbesorry.Whatwillhappeniftheyhavethepartytoday?Iftheyhaveittoday,halftheclasswon’tcome.Shouldweaskpeopletobringfood?Ifweaskpeopletobringfood,they’lljustbringpotatochipsandchocolate.PresentationPracticeWhile-GrammarFillintheblanksaccordingtogrammarfocus.1.我想我将会乘公共汽车去参加聚会。I_____I’lltakethebustothe______.2.如果你那样做，你将会迟到。Ifyou_____,_____belate.3.我想我将待在家里。I__________stayathome.4.如果你那样做，你将会觉得很抱歉。Ifyou____,__________sorry.5.如果他们今天聚会，将会发生什么事？_______________ifthey_____thepartytoday?6.如果他们今天聚会，班里一半的学生将不会去。Ifthey______thepartytoday,______theclass_______come.7.我们应当要求人们带食物来吗？

Shouldwe______peopleto______food?8.如果我们要求人们带食物来时，他们将会只带薯条和巧克力。______we______peopletobringfood,________just______potatochipsandchocolate.

doyou’llthinkpartythinkI’lldoyou’llbeWhatwillhappenhavehavehalfwon’taskbringthey’llbringIfaskGrammarFocusIthinkI'lltakethebustotheparty.Ifyoudo,you'llbelate.IthinkI'llstayathome.Ifyoudo,you'llbesorry.Whatwillhappeniftheyhavethepartytoday？Iftheyhaveittoday,halftheclasswon'tcome.Shouldweaskpeopletobringfood？Ifweaskpeopletobringfood,they'lljustbringpotatochipsandchocolate.Ifyoutakethebustotheparty,you’llbelate.Ifyoustayathome,you’llbesorry.为避免重复,条件状语从句常用助动词do(does/did)来替代上文提到的动作。GrammarFocusGrammarfocusReadthefollowingsentencesandfindsentencesincluding“If…will…”.IthinkI’lltakethebustotheparty.Ifyoudo,you’llbelate.IthinkI’llstayathome.Ifyoudo,you’llbesorry.Whatwillhappeniftheyhavethepartytoday?Iftheyhaveittoday,halftheclasswon’tcome.Shouldweaskpeopletobringfood?Ifweaskpeopletobringfood,they’lljustbringpotatochipsandchocolate.Predicttheconsequences.Whatarethesesentences’function?if引导的条件状语从句

If是连词，表示假设或条件，意为____________________，表示将会发生和可能发生的事，或进行提醒警告。引导条件状语从句，既可放在主句_____，也可放在主句_____。若if条件句放在句首，从句后面要加______与主句隔开。

“如果；假如；倘若”前面后面逗号如：如果你去那儿，我也会去。______________,I’llgo,too.我妈妈如果有空，就会带我去公园Mymotherwilltakemetothepark____________.IfyougothereifsheisfreeIf条件状语从句的复合句中主从句的时态if引导的条件状语从句要遵循“主将从现”的规则。即if引导的条件状语从句，主句用一般将来时(用will形式，不能用begoingto形式)，从句用一般现在时。❶主句是一般将来时，从句用一般现在时。如：IfIgototheparty,I’llhaveagreattime.I’llhaveagreattimeifIgototheparty.从句主句一般现在时一般将来时从句主句一般现在时一般将来时句子结构：If+从句,主句.=主句+if+从句.主将从现如：Ifyoueatbadfood,youmayfallill.❷

主句谓语含有情态动词may/might/can/must/should等，从句用一般现在时。从句主句一般现在时含情态动词mayIfthetrafficlightsarered,youmuststopandwait.从句主句一般现在时含情态动词mustYoucanpasstheexamifyouworkhard.从句主句一般现在时含情态动词can主情从现❸如果主句是祈使句，那么从句通常要用一般现在时。(即主祈从现)如：Ifthelightis

red,waitforaminute.从句主句一般现在时祈使句Ifyouwanttohaveachat,callmeup.Don’twaitformeifIamlate.从句主句一般现在时祈使句从句主句一般现在时祈使句主祈从现有些句子可与含if的条件状语从句互相转换。❶有if引导的条件状语从句的复合句中，当主句和从句的主语均为you时，可转换为“祈使句，and+简单句”或“祈使句，or(否则)+简单句”如：Ifyoustudyhard,

you’llpasstheexameasily._____________,_____you’llpasstheexameasily.StudyhardIfyoudon’thurryup,

youwillbelateagain.__________,_____youwillbelateagain.HurryuporandYouwillbehealthier

ifyoueatwell._________,_____youwillbehealthier.Eatwelland❷

借助介词with或without来转换。如：Youcan’tdrivethecarifthedoorisopen.Youcan’tdrivethecar__________________.withthedooropenIfthereisnowater,fishwilldie.Fishwilldie_____________.withoutwaterWithyourhelp,I’llfinishmyjobsoon._____________,I’llfinishmyjobsoon.IfyouhelpmeGrammarFocusif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，中间没有逗号。从句在前，主句在后，中间有逗号。时态主将从现主情从现注意在条件状语从句中，if的含义为“如果”，时态是主将/情/祈从现。当if的含义为“是否”时，时态要根据实际情况选择。主祈从现3aFillintheblankswiththecorrectformsoftheverbsinbrackets.upsetadj.难过；失望；沮丧beupsetwithsb生某人的气/对某人感到不快taxin.出租汽车；的士advicen.劝告；建议Languagepoints1.Canyougivemesomeadvice

please?（教材P753a）(1)advice与suggestion两者都可表示“建议”，其区别如下：advice不可数名词。表示“一条建议”用apieceofadvice。Iaskedmyteacherforsomeadvice/apieceofadvice.suggestion可数名词，复数形式为suggestions。Iaskedmyteacherforsomesuggestions/asuggestion.(2)与advice相关的一些词组：givesb.someadvice给某人一些建议asksb.foradvice征求某人的意见take/followsb.’sadvice听从某人的意见Post-GrammarFillintheblankswiththecorrectformsoftheverbsinbrackets.3aPracticeknowdothinkgowillbetellshavewearwilllookgowalkwilltaketakewillbeknow;do句意“我不知道明晚参加迈克的生日聚会的事怎么做？”don’t后跟动词原形；whatto+动词形式，复合不定式结构。2.think本句表达一客观事实，主语parents是复数形式，故用一般现在时态。句意“我父母认为我应当为下周的英语考试而学习”

。3.go;willbe本句是含if条件状语从句的主从复合句；应遵循主将从现原则。句意“如果我去参加聚会，他们会很失望。”4.tells;have

本句为but连接的并列句，后半句为一般现在时，故前半句也应是一般现在时，主语Mike是第三人称单数形式，故填tells；don’t后跟动词原形。5.wear;willlook

本句为含if条件状语从句的主从复合句，应循主将从现原则。句意“如果我穿牛仔，我看起来会很糟糕。”7.walk;willtake

本句为含if条件状语从句的主从复合句，应循主将从现原则。句意“如果我步行去，将会花费我很多时间。”take;willbe本句为含if条件状语从句的主从复合句，应循主将从现原则。

句意“如果我乘出租车去，又将会很贵。”。PresentationPost-GrammarPractice3aReadcarefullyandfindtheanswerstothefollowingquestions:1.WherewillTinago?2.Whenistheparty?3.WhatdoesMiketellthemtodo?4.WhatwillhappenifTinawearsjeans?5.DoesTinaknowhowtogototheparty?Mike’sbirthdayparty.Tomorrownight.Hetellsthemtowearniceclothes.Ifshewearsthejeans,shewilllooktheworst.No,shedoesn’t.3bCompletethesentencesusingyourownideas.1.IfIgetuplatetomorrow,_______________________________________2.IfIdon’tfinishmyhomework,__________________________________3.IfIdon’tgetenoughexercise,___________________________________4.Iwillnothaveenoughtimetostudyif_____________________________5.Iwillno