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1、Unit12Don'teatinclass.重难点分析与习题点播重难点1、haveto与must的用法2、祈使句的用法Whatcanyoudoatschool?canrunontheplaygroundcandomorningexercisesontheplaygroundcandohomeworkintheclassroomcaneatinthedininghallcandrinkwaterafterclasscanplaybasketballinthePEclasscansingsongsinthemusicclasscan
2、talkinthehallwayafterclassWhatcan’tyoudoatschool?can’tarrivelateforclasscan’trunintheclassroomsorhallwayscan’tlistentomusicintheclassroomsorhallwayscan’ttalkloudlyintheclassroomsorhallwayscan’teatintheclassroomscan’tsleepinclasscan’ttalkinclasscan’tusemobilephones(手机
3、)can’tfightcan’twearringsorotherfashionablethingscan’tbreakschoolfurniture(设施)英语祈使句（ImperativeSentence）定义：用于表达命令、请求、劝告、警告、禁止等的句子叫做祈使句，祈使句最常用于表达命令，因此常称为命令句。祈使句因对象（即主语）是第二人称，所以通常都省略。祈使句的动词都为一般现在时，句末则使用句号来表示结束。例：Bequiet,please.Pleasebequiet.相关口令祈使句无主语,主语you常省去;动词原形谓语当,句
4、首加don't否定变;朗读应当用降调,句末常标感叹号。Grammar祈使句Example:肯定祈使句否定祈使句Sitdown.Comein.Eatathome.Listentomusicoutside.5.Doyourhomeworkatschool.Don’tsitdown.Don’tcomein.Don’teatathome.Don’tlistentomusicoutside.Don’tdoyourhomeworkatschool.haveto表示由于客观原因必须做某事,意为“必须,不得不”,后接动词原形，有人称、数和时态的
5、变化。含haveto的一般疑问句和其否定式,需借助助动词do或does。haveto必须，不得不Wehavetoarriveatschoolontime.Wehavetodohomeworkeveryday.Wehavetocleantheclassroomeveryday.Wehavetokeeptheclassroomclean.Wehavetostudyhardatalllessons.Eg:Doyouhaveto…?Yes,wedo.Wehaveto…No,wedon’t.Wedon’thaveto…Schoolrule
6、s1.Cleantheclassroomeveryday.2.Gettoschoolbefore7:00.3.Wearsportsshoesforgymclass.4.Keepquietinclass.5.Dohomeworkontime.6.Wearuniformseveryday.7.Takeoff(脱下）yourshoesinthecomputerroom.形容词、副词形容词与副词的转换在词尾处+lyy结尾时,去y+ily有的e结尾的单词,需去e+ly，有的则直接+ly。quick—quickly2.easy--easil
7、y3.terrible-terribly4.true-truly5.brave-bravely6.careful-carefully大部分形容词加-ly可构成副词，但下面的这些词：friendly，lovely，lonely，lively，ugly，却仍为形容词。以-ly结尾的形容词形容词、副词的用法比较形容词副词修饰名词修饰动词、形容词Theyarecleverboys.Ipreferlonghair.Itreallysoundsnice.Theyworkveryhard.late,don’t,forschool,arrive
8、2.music,listento,intheclassroom,don’t3.eat,can’t,intheclassroom,weDon’tarrivelateforschool.Don’tlistentomusicintheclassroom.Wecan’t
