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1、2017年年5月月3日日RevisionRevisionComparative and Superlativethan you.Im tall.er1.A +比较级比较级+than BIm tall.as youas“A A比比B B更更 ”2.as as“A A与与 B B 一样的一样的 ”Im tall .in Class22.the est 3.A+最高级最高级+范围范围（of,in,among）“A A是某是某范围里范围里最最 ”Kilo 千千square n.平方平方meter n.米米deep adj.深的深的desert n.沙漠沙漠population n.人口人口Asia n
2、.亚洲亚洲Whats the earth like looking from space?Whats the highest mountain in the world?Which is the biggest desert in the world?Which is the deepest salt lake in the world?Which is the longest river in the world?mountaindesertlakeriver1.1-19：one,nineteen,2.整十：整十：-ty twenty-ninety hundred 单复数同形 thousan
3、d 百万百万：million 百百：千千：万万：3.1万=10 thousand10万=100 thousand6716,6711,0259,600,000one thousand and twenty-fivesix thousand six hundred and seventy-onenine million six hundred thousandmillion百万百万thousand 千千four point four threesix hundred and seventy-one eight thousand eight hundred and forty-four point
4、four three8,844.434.43Match the facts you know.1aQomolangmaThe SaharaThe Caspian SeaThe Nileabout 9,600,000 square kilometers in size1,025 meters deep6,671 kilometers long8,844.43 meters highclassroomlong 6mwide 5mHow big is our classroom?Its 30 square meters in size.平方米平方米在大小方面，在大小方面，在规模上在规模上Its 6
5、meters long.数字数字+计量单位计量单位+形容词原形形容词原形(in size)Its 5 meters wide.Listen and complete the sentences.1.Qomolangma 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.1bhigherthe biggestthe deepest
6、the longest the+序数词序数词+最高级最高级+(名词单数名词单数)表示表示“第几第几(最最)”Hainan Island is the second biggest(island)in China.海南岛是中国第二大岛。The longest river in the world is _.the NileAnd the Amazon is the second longest river in the world.It is higher than any other mountain in the world.比较级比较级+than+any other+单数名词，单数名词，意
7、为意为“比其他比其他都都.”,用比较级形式表达最高用比较级形式表达最高级含义级含义.The highest mountain in the world is _.Qomolangmadeeper than any other lake=the deepest lakeThe Sahara Desert_ is the biggest desert in the world.The Caspian Sea is the _ salt lake in the world.deepest最深的最深的A:Do you know what the highest mountain in the worl
8、d is?B:Yes.Qomolangma is the highest mountain in the world.A:How high is it?B:Its over 8,844 meters high.Take out your notes.Make conversations with your partner like this:1cQomolangmaThe SaharaThe Caspian SeaThe Nile8,844.43 meters highabout 9,600,000 square kilometers in size 1,025 meters deep6,67
9、1 kilometers long-Whats _ mountain in the world?-Qomolangma.-_ is Qomolangma?-Its 8,844.43 meters high.Its _ than any other mountain.the highestHow high higher SummarySummary-Which is _salt lake in the world?-The Caspian Sea.the deepest is the deepest of all the salt lakes.A:To memorize the important phrases and sentences.B:To make some dialogues about asking the size of objects.