英语人教版八年级下册unit7-SectionA.ppt

《英语人教版八年级下册unit7-SectionA.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、Unit7What'sthehighestmountainintheworld?sectionA11a-1c2017年5月3日RevisionComparativeandSuperlativethanyou.I’mtall.er1.A+比较级+thanBI’mtall.asyouas“A比B更…”2.as…as“A与B一样的…”I’mtall.inClass22.theest3.A+最高级+范围（of,in,among）“A是某范围里最…”Kilo千newwordssquaren.平方metern.米deepadj.深的des

2、ertn.沙漠populationn.人口Asian.亚洲LeadinDoyouknow...What’stheearthlikelookingfromspace?What’sthehighestmountainintheworld?Whichisthebiggestdesertintheworld?Whichisthedeepestsaltlakeintheworld?Whichisthelongestriverintheworld?…Qomolangmathehighestmountainintheworldmountai

3、ntheSaharathebiggestdesertintheworlddeserttheCaspianSeathedeepestofallthesaltlakeslaketheNilethelongestriverintheworldriverPresentationHowtosaythesenumbers?1.1-19：one,nineteen,2.整十：--tytwenty---ninetyhundred单复数同形thousand百万：million百：千：万：3.1万=10thousand10万=100thousand

4、×6716,6711,0259,600,000onethousandandtwenty-fivesixthousandsixhundredandseventy-oneninemillionsixhundredthousandmillion百万thousand千fourpointfourthreesixhundredandseventy-oneeightthousandeighthundredandforty-fourpointfourthree8,844.434.43Matchthefactsyouknow.1aQomolan

5、gmaTheSaharaTheCaspianSeaTheNileabout9,600,000squarekilometersinsize1,025metersdeep6,671kilometerslong8,844.43metershighclassroomlong6mwide5mHowbigisourclassroom?It’s30squaremetersinsize.平方米在大小方面，在规模上It’s6meterslong.数字+计量单位+形容词原形(insize)It’s5meterswide.Listenandcomp

6、letethesentences.Qomolangmais______thananyothermountainintheworld.TheSaharais_________desertintheworld.TheCaspianSeais_________ofallthesaltlakes.TheNileis_________riverintheworld.1bhigherthebiggestthedeepestthelongestthe+序数词+最高级+(名词单数)表示“第几(最)……”HainanIslandisthesec

7、ondbiggest(island)inChina.海南岛是中国第二大岛。Thelongestriverintheworldis_______.theNileAndtheAmazonisthesecondlongestriverintheworld.Itishigherthananyothermountainintheworld.比较级+than+anyother+单数名词，意为“比其他……都…..”,用比较级形式表达最高级含义.Thehighestmountainintheworldis___________.Qomolan

8、gmadeeperthananyotherlake=thedeepestlakeTheSaharaDesert________________isthebiggestdesertintheworld.TheCaspianSeaisthe________saltlakeinth