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1、Unit7What’sthehighestmountainintheworld?SectionA1a—2dWhoistallerthanothers?thetallesttallerYaoismuchtallerthanPan.abit,alittle,much,alot,lots,any,even+比较级AisashighasmountainB.AisashighasmountainB1.一般情况:+er(比较级)+est(最高级)quiet--quieter--thequietestbright--brighter---thebrig
2、htest2.词末为--e（不发音）+r--+stfine--finer--thefinestnice--nicer--thenicest3.重读闭音节，末尾只有一个辅音字母的：双写辅音字母+er--双写辅音字母+esthot--hotter--thehottestwet--wetter--thewettest4.三个或三个以上音节的形容词只能加more和most5..特殊变化good—better—bestmany/much—more—themost1.一般情况:+er(比较级)+est(最高级)quiet—quieter—thequi
3、etestbright—brighter—thebrightest2.词末为-e（不发音）+r—+stfine—finer—thefinestnice—nicer—thenicest3.重读闭音节，末尾只有一个辅音字母的：双写辅音字母+er—双写辅音字母+esthot—hotter—thehottestwet—wetter—thewettest4.三个或三个以上音节的形容词只能加more和most5..特殊变化good—better—bestmany/much—more—themost比较级主要运用与两者比较，最高级运用于三者包括三者以上
4、的比较。A…+er…than…B,A…+est…ofthethree,A…+est…thanothersonetwothreefourfivesixseveneightnineteneleventwelvethirteenfourteenfifteensixteen，seventeeneighteennineteenCanyoureadthem?8,4485,6544,3219,54323,34534,66643,23367,321Qomolangma.It’s8,844.43metershigh!Doyouknowtheseintere
5、stplaces?QomolangmaQomolangmarunsalongtheborderbetweenChinaandNepal.Itiscoveredwithsnowalltheyearround.It’s8844.43high,thehighestintheworld.It’s26kilometerslong.TheNileIt’s6,671kilometerslong.CaspianSeaIt’s1,025metersdeep.TheSaharaIt’s9,600,000squarekilometersinsize.2,300
6、meters1aMatchthefactsyouknow.QomolangmaAbout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershigh1bListenandcompletethesentences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais____________desertin
7、theworld.3.TheCaspianSeais____________ofallthesaltlakes.4.TheNileis_________riverintheworld.higherthebiggestthedeepestthelongestsquarekilometer=km2squaremeter=m2度量单位使用规律（1）数词+meters/kilometers+high/deep/long/wide（2）XX平方米=XXsquaremeterHow+high/deep/long/wide…+be+主语？…8,844m
8、etershigh.…8,844米高…metershigh(long,wide…)……米高（长，宽……)。英语表示“有多长（宽，高……）”时，一般将数词和数量单位放在表示长宽高的形容词前作状语
