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1、Unit7What’sthehighestmountain intheworld?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－themostcareful useful－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
