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1、英语必修5译林牛津版Unit1第6课时教案Period6Grammarandusage(To-infinitive)Teachinggoals1.Targetlanguagea.重点词汇和短语mailbox,persuade,badminton,dentist,Easter,amusement,amusementpark,takecareb.重点句子Thingsseemtobegettingbetter.Johnpretendednottohaveseenme.Shemademepromisetowriteeveryday.WehadnothingtodobutwatchT
2、V.2.AbilitygoalsEnablethestudentstouseinfinitivecorrectly.3.LearningabilitygoalsHelpthestudentslearnhowtouseinfinitivecorrectly.TeachingimportantpointsTheuseoftheinfinitivesign“to”andthedifferentformsofthetoinfinitive.TeachingdifficultpointsHowtoteachthestudentstodistinguishtheto—infinitiv
3、efromthebareinfinitiveandmasterthedifferentformsofthetoinfinitive.TeachingmethodsExplaining,summarizingandpracticing.TeachingaidsAcomputerandaprojector.TeachingproceduresandwaysStepIRevisionRevisetheadjectivestodescribepersonalityandsomesentenceswithinfinitive……Step2Grammar****************
4、*****************************************To-infinitive.动词不定式由“不定式符号to+动词原形”构成,否定形式nottodo。是动词的一种非谓语的形式,在句中不能单独作谓语。动词不定式具有动词的性质,可以有自己的宾语和状语,也可以有时态和语态的变化。同时,它也具有非动词的性质,相当于一个名词、形容词或副词,可以在句中担任主语、宾语、宾语补足语、表语、定语和状语.动词不定式的用法:1、作主语(1)不定式短语在句中作主语。谓语动词用单数形式。e.g.:Tosayisonethingandtodoisanother.Tokno
5、woneselfisdifficult.但在很多情况下,为了保持句子平衡,通常用it作为形式主语,而把不定式移到谓语之后,e.g.:Itisdifficulttoknowonself.ItisimportanttolearnEnglish.2、作表语。不定式作表语说明主语的具体内容或表示目的。e.g.:Hiswishistobecomeanengineer.Toliveistodosomethingworthwhile.3、作宾语.作动词的宾语,即动词+todosth.常见的要加不定式作宾语的动词有:decide/determine,learn,want,expect/ho
6、pe/wish,refuse,manage,pretend,offer,promise,choose,plan,agree,ask/beg,afford,prefer,require,enable,need,order…e.g.:Heagreedtomeetherebutsofarshehasn’tturnedupyet.HepretendednottoseemewhenIpassedby.在find,make,think,consider等动词后,如果宾语带有宾语补足语时,常用it作形式宾语,而把真正的宾语放在宾语补足语后.e.g.:Ifinditinterestingt
7、ostudyEnglish.Ithinkitimpossibletoworkouttheproblem.4、作宾语补足语,即V+sb.(not)todosth.如动词advise,allow,ask,cause,challenge,command,consider,enable,encourage,forbid,force,inform,invite,persuade,tell,send,urge,want,warn….Eg.IwantyoutospeaktoTom.Askhimnottomakenoise.(1)