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1、Unit7SectionAPeriod1(1a-1c)形容词和副词的比较级和最高级大多数形容词有三个级。原级:常用结构as...as...像……一样ZhangHongisastallasTom.张红和汤姆一样高。2)比较级(用于两者之间的比较)常用结构：形容词比较级＋than...HeistallerthanI.他比我高。Grammar3)最高级(用于三者或三者以上的比较),常用结构:the+形容词的最高级＋of/in...Heisthetallestofthethree.他是这三个人中最高的。H
2、eisthefunniestinhisclass.他是他们班最有趣的。2.形容词、副词比较级和最高级规则变化和不规则变化。规则变化1)一般情况下，单音节或双音节的形容词（或副词）比较级＋er，最高级＋est如：clever－cleverer－cleverestfew－fewer－fewestsmall－smaller－smallest等。2)以e结尾的词，比较级＋r，最高级＋st即可。如：nice－nicer－nicestcute－cuter－cutestlarge－larger－largest3
3、)以辅音字母＋y结尾的变y为i＋er或est如:easy－easier－easiesthappy－happier－happiest再如：early,busy,heavy,dirty,lazy也如此。4)双写最后一个辅音字母＋er或est的词,同学要用心去记。fat－fatter－fattestthin－thinner－thinnesthot－hotter－hottestred－redder－reddestwet－wetter－wettestbig－bigger－biggest5)多音节和部分双音节
4、的词需要在形容词原级前＋more构成比较级，＋themost构成最高级。如：beautiful－morebeautiful－themostbeautiful又如:delicious,popular,important,interesting,expensive,creative双音节的词如: careful－morecareful－themostcareful useful－moreuseful－themostuseful少数单音节词也是这样，如：pleased－morepleased－themo
5、stpleasedtired－moretired－themosttiredb)不规则变化：good—better—bestwell—better—bestbad－worse－worstmany,much—more—mostfar—farther—farthest(距离远)far—further—furthest(程度深)old—elder—eldest(长幼)old—older—oldest(年龄)Learnthenewwordsandreadthemloudly.QomolangmatheNil
6、etheCaspianSeatheSaharatheYangtzeRivertheYellowRivertheMingDynastytheMingGreatWall珠穆朗玛峰尼罗河里海(世界最大的咸水湖)撒哈拉沙漠长江黄河明朝明长城squaremeterdeepdesertpopulationAsiafeelfreetourn.平方；正方形n.米；公尺adj.深的；纵深的n.沙漠n.人口；人口数量n.亚洲(可以)随便(做某事)n.＆v.旅行；旅游touristwallamazingancientp
7、rotectwideasfarasIknown.旅行者；观光者n.墙adj.令人大为惊奇的;令人惊喜(或惊叹)的adj.古代的；古老的v.保护；防护adj.宽的；宽阔的就我所知Whichisthehighestmountainintheworld?Whichisthelongestriverintheworld?WhichisthelongestriverinAsia?…Doyouknow?QomolangmatheSaharatheCaspianSeatheNiletheYangtzeRiver
8、1aMatchthefactsyouknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershigh1bListenandcompletethesentences.1.Qomolangmais_________thananyothermountainintheworld.2.TheSa
