Unit3语法专项课件-形容词比较级最高级课件-沪教版英语八年级上册

教学课件沪教（牛津）英语八年级上册Unit3语法专项——形容词比较级&最高级

全解精讲+分层练习

学习目标1.掌握原级、比较级、最高级的基本功能。2.熟练掌握4类规则变化的拼写细节。3.背熟5组不规则变化。4.会用than/the/in/of/among。5.掌握比较级

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最高级互换。基本定义原级：只描述，不比较。比较级：两者之间比，表示更……最高级：三者及以上比，表示最……标志词：than（比较级）；the+范围（最高级）规则变化1—一般单音节一般情况：直接+-er/-est例:tall→taller→tallest,long→longer→longest结尾不发音e：只+-r/-stnice→nicer→nicest规则变化2—重读闭音节结构：辅音+元音+辅音变化：双写尾字母+-er/-estbig→bigger→biggestthin→thinner→thinnestfat→fatter→fattest规则变化3—辅音+y结尾：辅音字母+y变化：y→i+-er/-esteasy→easier→easiesthappy→happier→happiestheavy→heavier→heaviest规则变化4—多音节词音节≥3或部分双音节词比较级：more+形容词最高级：most+形容词beautiful→morebeautiful→mostbeautifulexpensive→moreexpensive→mostexpensive不规则变化（必背）good/well→better→bestbad/ill→worse→worstmany/much→more→mostlittle→less→leastfar→farther/further→farthest/furthest比较级核心句型结构：A+be+比较级+than+B含义：A比B更……例句：Thisphoneislighterthanthatone.要点：看到than，一定用比较级比较级修饰词（加强语气）可放在比较级前：much/alot/even/still例句：Heismuchtallerthanme.例句：Thiscomputerisevenfaster.比较级并列结构比较级+and+比较级含义：越来越……单音节：tallerandtaller多音节：moreandmorebeautiful最高级核心句型结构：A+be+the+最高级+范围范围：in/of/among例句：Heisthetallestintheclass.要点：最高级前通常加the最高级不加the的情况当前面有物主代词时，不加themybestfriend（√）mythebestfriend（×）hisfastestcar（√）in/of/among用法in+地点/集体：inourclass/intheworldof+数量/全部：ofthethree/ofallamong+三者以上：amongthestudents比较级↔最高级互换（必考）最高级=比较级+thananyother+单数名词例句：Heisthetallestintheclass.=Heistallerthananyotherstudent.口诀：最高级变比较级，加thananyother易混点1两者比较→比较级+than

三者及以上→the+最高级有than→一定不用最高级

有范围→优先最高级易混点2单音节：用-er/-est，不用more

taller（√）moretall（×）多音节：用more/most，不用er

moreimportant（√）importanter（×）易混点3anyother+单数名词anyotherstudent（√）

anyotherstudents（×）theother+复数名词

theotherstudents（√）基础训练1—写出三级变化high→______________→______________fine→______________→______________wet→______________→______________early→______________→______________careful→______________→______________higherhighestfinerfinestwetterwettestearlierearliestmorecarefulmostcareful基础训练2—不规则填空good→________________→________________bad→________________→________________many→________________→________________little→________________→________________far→________________→________________betterbestworseworstmoremostlessleastfartherfarthest适当形式填空1Thisstoryis________________(funny)thanthatone.Winteris________________(cold)seasonoftheyear.Sheis________________(happy)thanbefore.Thisis________________(exciting)movieI’veseen.Heruns________________(fast)thanhisbrother.funnierthecoldesthappierthemostexcitingfaster适当形式填空2Thisis____________(bad)restaurantintown.It’sgetting____________and____________(warm).Whichis____________(safe),planeortrain?Thisbagis____________(heavy)thanmine.Heis____________(good)atmaththanme.theworstwarmerwarmersaferheavierbetter单项选择1.Myroomis______thanyours.A.cleanB.cleanerC.thecleanest2.Sheis______girlinourclass.A.quietB.quieterC.thequietest3.Whichis______,theelephantorthehorse?A.strongB.strongerC.strongest4.Thisis______bookinthestore.A.cheapB.cheaperC.thecheapestBCBC单项选择1.Themovieis______thanIthought.A.interestingB.moreinterestingC.mostinteresting2.Heis______thanhissister.A.busyB.busierC.thebusiest3.Amongalltheapps,thisoneis______.A.usefulB.moreusefulC.themostuseful4.Thisdressis______ofthethree.A.beautifulB.morebeautifulC.themostbeautifulBBCC句型转换1.Thisbikeisnew.Thatbikeisnewer.（合并）Thatbikeis____________thisone.2.Heisthestrongestboy.（同义句）Heis___________than____________boy.3.Thisisthemostusefultool.（同义句）Thistoolis______________than____________tool.4.Theriverislong.Thatriverislonger.（合并）Thatriveris____________thisone.anyothermoreusefulanyotherlongerthannewerthanstronger完成句子11.英语比语文更有趣。Englishis__________________thanChinese.2.黄河是中国第二长河。TheYellowRiveris___________________________riverinChina.3.这是我吃过最好吃的蛋糕。Thisis_____________________________cakeIhaveevereaten.4.他比班上任何其他学生都高。Heistallerthan__________________studentinhisclass.moreinterestingthesecondlongestthemostdeliciousanyother课堂总结（一）比较级：两者对比，用

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