英语人教版八年级下册Unit7SectionA.ppt
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1、Section A 1 1a2dUnit 7Whats the highest mountain in the world?square n.平方平方meter n.米米Check the preview deep adj.深的深的desert n.沙漠沙漠population n.人口人口Asia n.亚洲亚洲tour v.n.旅行旅行tourist n.旅行者旅行者wall n.墙墙amazing adj.令人大为惊奇的令人大为惊奇的ancient adj.古代的古代的wide adj.宽的;宽阔和宽的;宽阔和Lets read numbers2.3451656,671600,0009,6
2、00,0001,300,000,000two point threeforty-fiveone hundred and sixty-fivesix thousand six hundred and seventy-onesix hundred thousandnine million six hundred thousandone billion three hundred millionbillion十亿十亿million百万百万thousand 千千111,121,435,678111,121,435,678billionmillionthousandone hundred and ele
3、ven billion one hundred and twenty-one million four hundred and thirty-five thousand six hundred and seventy-eight十亿的读法十亿的读法Can you read them?8,448 5,654 4,321 9,543 23,345 34,666 43,233 67,3216,3005,0005,464300Can you translate the below sentences?1.6,300是最大的数字。是最大的数字。6,300 is the biggest(largest)n
4、umber.2.300是最小的数字。是最小的数字。300 is the smallest number.3.6,300比比5,000要大很多。要大很多。6,300 is much bigger than 5,000.4.5,464和和5,000差不多一样大。差不多一样大。5,464 is almost as big as 5,000.Read the number!4,69826,471,904,75827,6449,237,5865.4176,934,524,456389298,50328,596,73890Group work:Write down some numbers and ask
5、 your group mates to read it.No.1-No.4No.2-No.32米长米长1米宽米宽150米高米高1125米深米深1.5米厚米厚9,600,000平方公里平方公里two meters longone meter wideone hundred and fifty meters highone thousand one hundred and twenty-five meters deep one point five meters thick数词数词+单位单位+形容词形容词(long,wide,high,deep,thick)面积:数词面积:数词+单位单位+in
6、sizenine million six hundred thousand square kilometers in size 1.最高的山最高的山 the highest mountain 2.最长的河最长的河 the longest river 3.最深的海最深的海 the deepest sea 4.最大的沙漠最大的沙漠 the biggest desert 5.1025米深米深 1025 meters deep 6.8844.43米高米高 8844.43 meters high 7.6671公里长公里长 6671 kilometers long 8.面积面积 9600000平方米平方米
7、 9600000 square meters in size 9.比其它任何山都高比其它任何山都高 higher than any other mountain请四号请四号朗读这朗读这些短语些短语请快速请快速记住这记住这些短语些短语Which isA.mountainB.riverC.lakeD.desertQomolangmathe Nilethe Caspian Seathe SaharaIt has two banks.the richest?_ meters high_ meters long_ meters deep8,844.436,6711,025_ square kilomet
8、ers in size9,600,000Qomolangmathe Nilethe Caspian Seathe SaharaHow high/long/deep/big is.?写出下列单词的比较级和最高级形式写出下列单词的比较级和最高级形式1.deep _ _ 2.long _ _ 3.high _ _ 4.big _ _ 5.nice _ _ 6.large _ _ 7.easy _ _ 8.good _ _9.beautiful _ _10.exciting _ _deeper deepestlonger longesthigher highestbigger biggestnicer
9、 nicestlarger largesteasier easiestbetter bestmore beautiful most beautifulmore exciting most exciting请思考并总结:请思考并总结:形容词、副词的比较级和最高级的构形容词、副词的比较级和最高级的构成形式有哪些?(先独立思考,再小组讨论。)成形式有哪些?(先独立思考,再小组讨论。)请小组核对请小组核对预习与交流(一)预习与交流(一)的答案,然的答案,然后在全班展示。后在全班展示。请五号朗读这些单词。请五号朗读这些单词。Geographical facts地理常识地理常识the longest ri
10、ver(has)the biggest populationthe highest mountainthe biggest countrythe biggest desertthe biggest salt lake the biggest oceanthe biggest continent1.The Nile2.The Amazon River3.Yangtze River1.Russia 2.Canada 3.China The SaharaThe Caspian SeaAsia The Pacific Ocean ChinaQomolangmadi:rfklGeographical f
11、acts地理常识地理常识the longest riverhas the biggest populationthe highest mountainthe biggest countrythe biggest desertthe biggest salt lake the biggest oceanthe biggest continent-Whats the longest river in the world?-The Nile.Pair workMatch the facts you know.1a1b Listen and complete the sentences.1.Qomol
12、angma is _ than any other mountain in the world.2.The Sahara is _ desert in the world.3.The Caspian Sea is _ of all the salt lakes.4.The Nile is _ river in the world.higherthe biggestthe deepestthe longestany other+n any other+n 单数单数A:What is the highest mountain in the world?B:Qomolangma.1cPairwork
13、Use the information in 1b to make conversations1.一般情况一般情况:+er(比较级比较级)+est(最高级最高级)quiet-quieter-the quietest bright-brighter-the brightest2.词末为词末为-e(不发音)(不发音)+r-+stfine-finer-the finest nice-nicer-the nicest3.重读闭音节,末尾只有一个辅音字母的:双写重读闭音节,末尾只有一个辅音字母的:双写辅音字母辅音字母+er-双写辅音字母双写辅音字母+esthot-hotter-the hottest w
14、et-wetter-the wettest4.三个或三个以上音节的形容词只能加三个或三个以上音节的形容词只能加more和和most5.特殊变化特殊变化goodbetterbest many/muchmorethe most1.一般情况一般情况:+er(比较级比较级)+est(最高级最高级)quietquieterthe quietest brightbrighterthe brightest2.词末为词末为-e(不发音)(不发音)+r+stfinefinerthe finest nicenicerthe nicest3.重读闭音节,末尾只有一个辅音字母的:双写辅音字母重读闭音节,末尾只有一个辅
15、音字母的:双写辅音字母+er双写辅音字母双写辅音字母+esthothotterthe hottest wetwetterthe wettest4.三个或三个以上音节的形容词只能加三个或三个以上音节的形容词只能加more和和most5.特殊变化特殊变化goodbetterbest many/muchmorethe most比较级主要运用与两者比较,最高级运用于三者包括三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的比较。者以上的比较。A+erthan B,A+estof the three,A+est than others Our homeland,China.China has t
16、he longest wall,China has the third longest river,China has the river which has the most sand,China is the third biggest country,China has larger population than any other country,the Great Wall.the Yangtze River.the Yellow River.9,600,000 square kilometers in size.1,300,000,000比较级比较级1.My hair is lo
17、nger than_.她她2.Theweatherisgetting_and_(warm)3.The_(old)Iget,the_(weak)Iseemtofeel.4.Qomolangma is higher than any other _ in the world.(山山)5.Its raining,and it is much _.(cold)herswarmerwarmerolderweakermountaincolder比较前后一致比较前后一致比较级比较级 and 比较级:越来越比较级:越来越the 比较级,比较级,the 比较级比较级:越:越越越比较级表示最高级比较级表示最高级m
18、uch,a lot,a little,a bit,even+比较比较级级最高级最高级1.Summeris_(hot)seasonoftheyear.2.TheChangjiangRiverisoneof_intheworld.A.thelongestriver B.longestriversC.thelongestrivers D.longerrivers3.The Yangtze River is _ river in the world.(第三长第三长)the hottestCthe third longest 双写加双写加er,est:hot,big,wet,thin,fat最最之一之一
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