八年级英语下册 8b unit 6 a charity walk grammar（2）学案 牛津版

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1、8BUnit6ACharityWalkGrammar（2）班级姓名备课组长【学习目标】1.Touse“Itis”+adj.+“to”-infinitivetodescribeactionsandsituations.2.Touse“Itis”+adj.+“for…”+“to’-infinitivetospecifythepersononeistalkingabout.Importantanddifficultpoints:1.Itis+adj.+to–infinitive2.Itis+adj.+forsb.+to–i

2、nfinitive【课前预习】1．itis+adj+that从句和itis+adj+forsbtodosth有时可以互换1)Itisnecessarythatwetrainourselvesbeforethewalk.=Itisnecessary______________________ourselvesbeforethewalk.2)Itisimportant_____wemusthelpeachother.=Itisimportant____________________eachother.3)Itisnec

3、essary______himtopracticespeakingEnglish.=Itisnecessary__________mustpracticespeakingEnglish.4)Itiscomfortable_____Lilylivesinabigflat.=Itiscomfortable____Lily____liveinabigflat.2．Itis+adj.+ofsb.todosth.表示某人做某事是---这个结构中的ofsb是不定式todosth的逻辑主语.句中的形容词是表示人物品质或特征，是用来

4、描述人的，如： right,kind,nice,clever,wise,polite,brave,wrong,strong,good,honest,generous,rude, careless…1)It’snice____youtodonateyourownmoneywithpeopleinneed.2)It’sgenerous____youtoshareyourfoodwithothers.3)Itiskind______youtohelpmesolvetheproblem.3．以上结构可以转换为：(1)How+

5、adj.+itis+ofsb.todosth.!Howkinditisofyoutohelpmesolvetheproblem!(2)Sb.+is+adj.+todosth!Youarekindtohelpmesolvetheproblem!4．it还可代替todo和That从句作形式宾语find/make/thinkit+adj+todosthfind/make/thinkit+adj+that从句It'seasier_____(say)than_____(do).【学习过程】Step1.RevisionStep2

6、.PresentationExplainthatthe“Itis”+adj.+“to”-infinitivestructureissimilartothestructureinpartA,1.Askstudentstogothroughthesixpicturesonpage100andmakesentencesusingthewordsinbracketsandtheverbsinthebox.Step3.Presentation1.TellstudentsthatstructureinpartCisthesame

7、astheoneinpartBexceptthatweinsert“forsb.”betweentheadj.andthe‘to’-infinitivetoindicatewhowearetalkingabout.2.Askstudentstotellthedifferencesbetweenthetwosentences:(1)ItisdifficultforyoutoworkouttheMathsproblem.(2)Itisverykindofyoutohelpme.Step4.Practice1.Explai

8、nthecontextoftheexerciseinpartCandcompletetheconversation.Invitesomestudentstorole-playLucyandLily’sconversation.【当堂训练】一．选择填空（）1.Is_________necessarytocompletetheworkbeforeN