英语人教版八年级下册Unit 7 SectionA3a -4b

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1、Unit7What’sthehighestmountainintheworld?第二课时SectionA3a-4a【Freetalk】What’sthemostdangerousmountainintheworld?【学习目标】1.学习并掌握下列单词：paragraph,southwestern,thick,include,freezing,condition,succeed,challenge,achieve,force,nature,ocean,thePacificOcean2.学习并掌握下列短语：freezingweatherconditio

2、ns,heavystorms,takeinair,risktheirlives,giveup,theforceofnature,inthefaceof，atbirth,liveupto.3.学习并掌握下列重点句子：1）Evenmoreseriousdifficultiesincludefreezingweatherconditionsandheavystorms.2).Itisalsoveryhardtakeinairasyougetnearthetop.3).Oneofthemainreasonsisbecausepeoplewanttochall

3、engethemselvesinthefaceofdifficulties.4).Thespiritoftheseclimbersshowsusthatweshouldnevergiveuptryingtoachieveourdreams.4.Grammarfocus:1)形容词最高级的用法；2)掌握量词的用法。Step1:自主学习一、写出下列短语和句子：1.最危险的运动之一_________________　2.绵延中国西南边界_________________　3.暴风雪4.吸入　_________________　5.冒生命危险________

4、__________6.放弃____________7.实现我们的梦想8.大自然的力量___________________9.即使_______________10.登山者的精神___________________11.直立行走_________________12.出生时___________13.liveupto____________13.Evenmoreseriousdifficultiesincludefreezingweatherconditionsandheavystorms.____________________________

5、14.Oneofthemainreasonsisbecausepeoplewanttochallengethemselvesinthefaceofdifficulties.____________________________________________________________________________15.Thespiritoftheseclimbersshowsusthatweshouldnevergiveuptryingtoachieveourdreams.__________________________________

6、________________________________________________Step2:课堂呈现一、自主学习：阅读3a文章回答下列问题。1.What’soneofthemostdangeroussports?2.WhyisQomolangmasodangerous?3.Whoisthefirstwomanreachingthetop?4.What’sthespiritoftheclimbers?二、完成3b；3c三、完成GrammarFocus和4a四、看幻灯片，完成句子。Step3:合作探究、质疑解惑：★重点语法形容词和副词的比

7、较级和最高级的用法【要点探究】1.英语形容词，副词比较等级有三个：原级，比较级和最高级。形容词比较等级形式变化有规则的和不规则的两种。规则变化(1)单音节词末尾加-er（比较级），-est（最高级）【例】原级比较级最高级greatgreatergreatestsmallsmallersmallestquietquieterquietest(2)单音节如以e结尾，只加-r（比较级），-st（最高级）【例】finefinerfinestnicenicernicestwidewiderwidest(3)闭音节单音节词如末尾只有一个辅音字母，（辅音﹢元音﹢辅

8、音【w,r除外】）须先双写这个辅音字母，再加-er（比较级），-est（最高级）【简记：大红辣椒潮湿瘦变胖】