人教版八年级英语下册Unit 7第1课时（A 1a-2d）.pptxVIP

Learningobjects（学习目标）Bytheendoftheclass,youwillbeableto:1.Learnthefollowingkeywordsandphrases:square,meter,deep,desert,population,Asia,feelfree,asfarasIknow,protect,ancient,tourist…2.Talkaboutgeographyandnature.3.Learntocomparefactsandexpresslargenumbers.4.Improvestudents’listeningandspeakingabilities.

Canyoureadthefollowingnumbers?1,0259,600,0008,848.866,671Whatdoyouknowaboutthisnumber?Qomolangma.It’s8,848.86metershigh.Whataboutthisnumber?____________.It’s______________.

Qomolangma—8,848.86metershighIt’sthehighestmountainintheworld.It’scoveredwithsnowallyearround.

theCaspianSea—1,025metersdeepIt’sthebiggestsaltlakeintheworld.ItliesatthejunctionofAsiaandEurope.

theSahara—about9,000,000squarekilometersinsizeIt’sthebiggestdesertintheworld.

theNile—6,671kilometerslongIt’sthelongestriverintheworld.Itrunsthrough9countries.

Matchthefactsyouknow.1aQomolangmatheNiletheCaspianSeatheSahara

QomolangmaTheNileTheCaspianSeaTheSaharaabout9,000,000squarekilometersinsize1,025metersdeep6,671kilometerslong8,848.86metershighsquare在此处作形容词，意为“平方”，用于数字后表示面积。square还可作名词，意为“正方形；广场”。insize在尺寸上；在大小方面与insize结构类似的还有：inheight在高度上inweight在重量上

1bListenandcompletethesentences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais__________desertintheworld.3.TheCaspianSeais___________ofallthesaltlakes.4.TheNileis__________riverintheworld.higherthebiggestthedeepestthelongestCanyoupredictwhatwewillfillinthefollowingblanks?比较级+thananyother+可数名词单数“……比其他任何一个……都……”，指同一范围内的比较，表达最高级的意义。比较级+thanany+可数名词单数“……比任何一个……都……”，指不在同一范围内进行比较。听关键词，可以忽略听不懂的结构。

Listenagainandmatchthefacts.QomolangmatheSaharatheCaspianSeatheNilethehighestmountainintheworldthebiggestdesertintheworldthedeepestsalt