人教版新课标八年级英语下册Unit7.ppt

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1、人教版新课标八年级下册阳西县奋兴中学执教者：李许娣Period11a-2dUnit7What’sthehighestmountainintheworld?SectionA【学习目标】1.能够掌握本节课出现的重点短语和句子。2.谈论地理和自然现象，学会对事实和数字的比较，提高听说能力。【重点、难点】识记形容词和副词比较级变法的多条规则；数字的读法。【学法指导】检查预习一说一听一练一．检查预习（checkpreview）写出下列单词的比较级和最高级high_________________deep___

2、____________big____________________long_____________________old______________________young___________________英汉互译：1.Million2.thousand3.hundred4.square5.deserthigherhighestbiggerdeeperdeepestbiggestlongerlongestolder/elderoldest/eldestyoungeryoungest百万千

3、百平方沙漠PanChangjiangisshort.PanChangjiangisshort.PanChangjiangisshort.PanChangjiangisshort.PanChangjiangisshort.LiYifengistall.YaoMingistall.LiYifengistallerthanPanChangjiang.YaoMingisthetallestofthethree.A:What’sthelongestriverinChina?Doyouknowsomefamou

4、sriversinChina?B:TheChangjiangRiver.A:Howlongisit?B:Itis6300kilometerslong.TheYellowRiveris5464kilometerslong.A：What’sthelongestriverintheworld?B：TheNile.A:Howlongisit?B:Itis6671kilometerslong.B:It’s8,844.43metershigh...A:What’sthehighestmountaininthew

5、orld?B:Qomolangma.(It’shigherthananyothermountainintheworld.)A:Howhighisit?B：Itisabout9,600,000squarekilometersinsize.A:What’sthebiggestdesertintheworld?B:TheSahara.A:Howbigisit?B:TheCaspianSea.(TheCaspianSeaisthedeepestofallthesaltlakes.)A:What’sthede

6、epestsaltlakeintheworld?A:Howdeepisit?B:Itis1,025metersdeep.Pairwork四张图片，同学们随意挑一张来做对话，进行操练。Matchthefactsyouknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershigh1aListenandco

7、mpletethesentences.Qomolangmais_________thananyothermountainintheworld.2.TheSaharais__________desertintheworld.3.TheCaspianSeais___________ofallthesaltlakes.4.TheNileis_________riverintheworld.higherthebiggestthedeepestthelongest1b四.小结（summary）1.)比较级句型

8、：形容词和副词的形式1.形容词和副词有三种形式：原级、比较级、最高级。原形，如long；比较级就是在原形之后加上er，如longer；最高级就是在原形之后加上est，如longest。在多音节词和部分双音节词前加more和most构成比较级和最高级。2.比较级常常用than来连接被比较的两个人或事物主语+谓语（be动词）+形容词的比较级+than+对比的主语如：Iamtallerthanmymother.2)最高级句型：（用于三者或三者以上进行比较）形容词和副词的最高