英语人教版八年级下册unit7 Section A(1a-1c).ppt

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1、Unit7What’sthehighestmountainintheworld?SectionA1a-1cClass8,Grade8thehighestmountain两者之间的比较，用比较级三者以上的比较，用最高级原级比较级最高级tallfastfinedryeasybigfatoutgoingpopulartallestfastestfinestdriesteasiestbiggestfattestmostoutgoingmostpopular1.直接加est构成最高级2.以不发音的字母e结尾的，直接加st3.以辅音字母加y结的，改y为i，再加

2、est4.重读闭音节，中间一元音字母，结尾一辅音字母，双写最后的辅音字母，再加est5.多音节及部分双音节词在前面加most构成最高级形容词或副词比较级、最高级的构成tallerfasterfinerdriereasierbiggerfattermoreoutgoingmorepopular不规则变化：good/wellbad/badlymany/muchfaroldlittle-better-best-worse-worst-more-most-farther/further-farthest/furthest-older/elder-oldes

3、t/eldest-less-leastWhoistaller?KaichaoisJintai.tallerthanWhoisnicer?MissWangisMr.Chen.nicerthanWhoismorehandsome?Mr.ChenisthanHuangXiaoming.morehandsomeWhoisthefattestboyinourclass?桐辉Tonghuiisthefattestboyinourclass,andhealsoisthetallestinourclass.TheYangtzeRiveristhelongestri

4、verinChina,andit'sthethirdlongestriverintheworld.theYangtzeRiver长江Qomolangma珠穆朗玛峰QomolangmaisthehighestmountaininChina.QinghaiLakeisthelargestsaltlakeinChina.QinghaiLake青海湖Doyouknowtheseplaces?theSaharatheCaspianSeaQomolangmatheNile珠穆兰玛峰里海尼罗河ZhujiangRiveris_______.TheYellowRi

5、veris________thanZhujiangRiver.TheYangtzeRiveristhe________riverinChina.Whatisthelongestriverintheworld?TheNileisthe_________riverintheworld.珠江2210公里黄河5464公里长江6300公里尼罗河6671公里longlongerlongestlongestComparetheriversTheTaiMountainis____.TheEmeiMountainis______thanTaiMount.Q

6、omolangmaisthe_______mountainintheworld.highhigherhighest8,844.43meterhighTheCaspianSeaisa______(lake/sea).lakesaltlakefreshlake√TheCaspianSeaisthesaltlakeintheworld.deepest里海是世界上最深的咸水湖。1，025metersdeepTheSaharaisthe________desertintheworld.biggest撒哈拉沙漠是世界上最大的沙漠。QomolangmaTheSa

7、haraTheCaspianSeaTheNiledeeplonghighbigstrongExercise1MatchQomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershigh1a.Matchthefactsyouknow.912Canyoureadthenumber?Speaking:Practiceinpairslikethis:A:Whatisthe

8、…inthe..?B:…百位数的读法700503846SevenhundredFivehundredandthreeeig