Unit6BirdwatchingGrammar教学目标1学习用动词不定式todo和inorderto表示目的。2掌握“动词+宾语+动词不定式todo”结构。教学准备写有短句的纸片。教学步骤AUsingto-infinitivesforpurposeStepI导入1检查家庭作业，了解学生对Reading的熟读或背诵情况。在基础较好的班级可以让学生背诵，在基础较弱的班级可以让学生朗读，教师适时纠正学生的读音。2教师通过提问检查学生对课文的理解情况。(l)WhydomanytouristsgotoZhalongeveryyear?(Theygotheretowatchthebirds.)(2)WhatkindsofanimalscanwefindinZhalong?(Manybirdsandfish.)(3)Whatwillhappenifpeoplebuildmorefarmsandbuildingsinthewetlands?(Thiswillleadtolessandlessspaceforwildlife.)(4)WhydothemembersoftheBirdwatchingSocietygotoZhalongonceayear?(Theygotheretostudythebirds.)(5)Whatdotheyneedmorepeopletodo?StepⅡ呈现1教师通过板书或课件显示上述1、4两个问题的答案，并用下划线突出towatchthebirds和studythebirds部分，引导学生理解动词不定式部分在这两个句子中所起的“表示目的”的作用。2教师说：Nowpleaseopenyourbooksandturntopage70.Findmoresentenceslikethese敲励学生在Reading部分找出分类句子。教师随后通过课件显示查找结果，如：(1)NowtheChinesegovernmenthasmadelawstopreventallthesethings.(2)Everyyear,alotoftouristsgotoZhalongtowatchthebirds.StepIII操练1教师说：TherearesomesentencesaboutZhalongonpage73Pleasematchthetwoparts让学生完成课本第73页的练习。2核对答案，并让学生集体朗读所有句子。3教师说：Wecanalsouseinordertoexpresspurpose.Thisismoreformalthanusingto-infinitives.Canyouchangethesesentenceswithinorderto?鼓励学生改写句子。教师可以给出H两句作为示范：(1)PeoplegotoZhalonginordertowatchthebirds.(2)Theyshouldreadaboutthebirdsfirstinordertolearnmoreaboutthem.StepIV活动1教师请各组第一个学生抽取一张写有短句的纸，然后通过加上表示目的的动词不定式完成句子，将句子写在纸片上，然后向后传递，每位学生只能写一个句子，在规定时间内写得最多的组获胜。教师说：Nowlet'splayagame.Thefirststudentofeachteamwillgetapieceofpaper.There'sashortsentenceonthepaper.Pleasemakealongersentencebyaddingato-infinitive.Eachstudentwillwriteonesentenceonlyandthenpassthepaperontothenextoneinyourteam.教师可以通过板书或课件显示如下示例：SamplewritingMymotherwenttothecitycentre…S1:Mymotherwenttothecitycentretodosomeshopping.S2:Mymotherwenttothecitycentretomeetherfriend.S3:…教师可以提示学生只写动词不定式部分以节约时间：Justwritetheto-infinitiveinordertosavetime.2教师宣布时间到，检查各组成果，并宣布获胜组：Timeisup!Nowpleaseshowmeyourpaper.Team…haswrittenthemostsentences.Team…wins!请获胜组学生依次朗读句子。BUsingverbs+objects+to-infinitivesStepI呈现1教师说：You'vedoneagreatjob!ButIneedyoutowritemoresentencesinyournotebookafterclassusingto-infinitives板书如写内容：Ineedyoutowrite…引导学生观察并总结出这个句予中的动词结构：动词+宾语+动词不定式todo。2教师说：Welldone!Canyoufindmoreverbsthatcanbeusedinthisway?引导学生回顾已有知识，找出已学过的有此种用法的动词，如：ask、tell、help等。3教师说：Canyoumakeafewsentenceswiththeseverbs?引导学生用这些动词造句。在基础较弱的班级，教师可以给出几个例句示范：(1)Thepolicemanaskedtheboysnottoplayfootballontheroad.(2)Theteachertoldmetocometoschoolearliernexttime.(3)Whatcanwedotohelpthesociety(to)protectthebirds?4教师说：Verygood!Buthaveyounoticedthatwecanusedoortodowiththeverbhelp?指出help后面可以接带to或小带todo不定式，即：helpsb(to)dosth。教师继续说：Butforsomeotherverbs,wecanonlyusedowiththem.Canyoufindsomeonpage74inyourbooks?引导学生找出其他几个只能接不带to的动词不定式动词，如：make、let、see、hear等。StepII操练1让学生完成课本第74页的练习。2核对答案，让学生集体朗读所有句子。向学生解释第五的用法：动词不定式的否定形式通常是在不定式符号to的前面加上not，如果是不带to的不定式就直接在动词原形前加上not。3教师再补充几句含动词不定式的否定形式的句子，帮助学生加深理解。Weaskpeoplenottodrivefastonsnowydays.Thelawtellseveryonenottodriveafterdrinkingwine.StepIII家庭作业1记忆本课时所学的词组、句型及语法部分的内容。
