资源描述:
《英语人教版八年级下册Unit 7Grammar focus 4a-4c.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Unit7What’sthehighestmountainintheworld?SectionA3Grammarfocus~4cWhat'sthehighestmountainintheworld?Qomolangma.HowhighisQomolangma?It's8,844.43metershigh.It'shigherthananyothermountain.Whichisthedeepestsaltlakeintheworld?TheCaspianSeaisthedeepestofallthesaltlakes.Didyou
2、knowthatChinaisoneoftheoldestcountriesintheworld?Yes,Idid.It'smucholderthantheUS.Grammerfocus比较级、最高级的构成规则:1.规则变化一般情况下,单音节或双音节的形容词/副词比较级+er,最高级+est。clever—cleverer—cleverestfew—fewer—fewestsmall—smaller—smallest等。形容词、副词的比较级和最高级2)以e结尾的词,比较级+r,最高级+st即可。nice—nicer—nicestcut
3、e—cuter—cutestlarge—larger—largest3)以辅音字母+y结尾的变y为i+er或est如:easy—easier—easiesthappy—happier—happiest4)重读闭音节,单辅音结尾的,双写这个辅音字母+er或est的词:①fat—fatter—fattest②thin—thinner—thinnest③hot—hotter—hottest④red—redder—reddest⑤wet—wetter—wettest⑥big—bigger—biggest5)多音节和部分双音节的词需要在形容词原
4、级前+more构成比较级/+themost构成最高级。如:beautiful-morebeautiful-themostbeautiful又如:delicious,popular,important,interesting,expensive等注意:下列情况词前加more/most1)+ed和+ing构成的形容词pleased—morepleased—themostpleasedtired—moretired—themosttiredtiring–moretiring–themosttiring2)+ful/less构成的形容词+ly
5、构成的副词careful-morecareful-themostcarefuluseful-moreuseful-themostusefulhappily--morehappily---mosthappily3)部分双音节形容词:often,serious,famoushonest,athlete(身体强健的)b)不规则变化:good/well—better—bestbad/badly/ill—worse—worstmany/much—more—mostfar—farther—farthest(距离远)further—furthes
6、t(程度深)old—elder—eldest(长幼)older—oldest(年龄)比较级考点1)比较级修饰问题alittle,abit,even,still,much,alot,far等可修饰比较级。e.g.TomisalittletallerthanJim.Thisbookismuchmoreinterestingthanthatone.中考链接2)同类比较e.g.TheweatherinBeijingiscolderthanthatinXi’an.Ourschoolisbiggerthanyours.3)the+比较级+oft
7、hetwo+名词/twins等e.g.Lucyisthefatterofthetwogirls.4)隐性比较(没有than的情况)e.g.Whorunsfaster,LucyorLily?You’dbettercomeearliernexttime.Heworkedhardlastterm,butheworksevenharderthisterm.5)比较级+and+比较级“越来越......”harderandhardermoreandmorebeautifulIt’sgettingcolderandcolder.6).the+
8、比较级+主谓,the+比较级+主谓....越.....,.....就越......Themoreyouexercise,thebetteryouare.Theearlierkidslearntobeindependent