UNIT 1 The Changing World TOPIC 2 Section B--比较级.ppt

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1、UNIT1TheChangingWorldTOPIC2ThepopulationindevelopingcountriesisgrowingfasterSectionB--比较级形容词比较级是什么？为了表现不同程度的性质，形容词具有三级：原级、比较级、最高级。形容词的比较级变化规则变化：短字+ermore+长字不规则变化：需靠背诵good/well→better規則变化1.形容词字尾加ertalltallerIamtall.Myfatheristaller.fastfasterThebikeisfast.Thetrainisfaster

2、.2.形容词字尾是e者则加rnicenicersafesafercutecuter3.形容词字尾是子音加y则去y加ierTheyarehappy.Tinaishappier.happyhappierDadisbusy.Momisbusier.busybusier4.形容词是发短母音则重复字尾加erhothotterYesterdaywashot.Todayishotter.bigbiggerThehippoisbig.Theelephantisbigger.5.多音节形容词在前面加moreinterestingmoreint

3、erestingbeautifulmorebeautifulhandsomemorehandsome形容词比较级不规则变化goodbetterbadworsemanymore看句型学造句(2):主词¹+be+比较级+than+主词²+be(1):主词+be+比较级Iamtaller.Youaretall.Iamtallerthanyouare.Thetrainisfaster.Thebikeisfast.Thetrainisfasterthanthebikeis.Peggyishappier.Theyarehappy.Peggyi

4、shappierthantheyare.Iambetter.Maryisgood.IambetterthanMaryis.