2014八年级下册英语unit7全单元

squaren.平方metern.米deepadj.深的desertn.沙漠populationn.人口Asian.亚洲tourv.n.旅行touristn.旅行者walln.墙amazingadj.令人大为惊奇的ancientadj.古代的wideadj.宽的；宽阔和Doyouknowtheseinterestplaces?QomolangmaQomolangmarunsalongtheborderbetweenChinaandNepal.Itiscoveredwithsnowalltheyearround.It’s8844.43high,thehighestintheworld.It’s26kilometerslong.TheNileisthelongestriverintheworld.It’smorethan6600kilometerslong.Itrunsthrough9countries,it’soneofthelargestriverflowsthroughtheinternationalstatesintheworldandrunsintotheMediterraneanSea(地中海)intheend.TheNileTheCaspianSeaTheCaspianSeaisthebiggestlakeintheworld.ItliesintheborderbetweenAsiaandEurope.TheSaharaisthebiggestdesertintheworld.ItislocatedinthenorthernAfrica,climateconditionsareverybad,isoneoftheearth'smostnotsuitableforbiologicalsurvival.TheSaharaTheYangtzeRiveristhethirdlongestriverintheworld,thefirstAsianrivers.It’s6211.31kilometerslong.TheYangtzeRiverBasin,east-westwidthof3219kilometers,about966kilometerswidenorth-south,passingthrough11provinces.ItrunsintotheEastSeainShanghaifinally.TheYangtzeRiverWhichisthehighestmountainintheworld?WhichisthelongestriverinAsia?...…1aMatchthefactsyouknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershighPracticeinpairslikethis:A:Whichisthe…inthe…?B:……8,844metershigh.…8,844米高…metershigh(long,wide…)……米高（长，宽……)。英语表示“有多长（宽，高……）”时，一般将数词和数量单位放在表示长宽高的形容词前作状语。e.g.Thewallis1.7metreswide.A:HowhighisQomolangma?B:It’s8,844metershigh.Thebiggestdesertintheworldisabout8,000,000squarekilometersinsize.HowbigistheSahara?It’sabout8,000,000squarekilometersinsize.1bListenandcompletethesentences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais____________desertintheworld.3.TheCaspianSeais____________ofallthesaltlakes.4.TheNileis_________riverintheworld.higherthebiggestthedeepestthelongest2aListenandnumberthefacts(1-4)intheorderyouhearthem.6,3005,0005,464300___TheYangtzeRiverisabout____kilometerslongandtheYellowRiveris___kilometerslong.___Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.___Chinaisover___yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven___yearsold.___ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.42132bListenagainandfillintheblanksin2awiththenumbersinthebox.6,3005,0005,464300___TheYangtzeRiverisabout_______kilometerslongandtheYellowRiveris______kilometerslong.___Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.6,3005,464___Chinaisover______yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven___yearsold.___ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.5,0003002cMakeconversationsusingtheinformationin2a.A:DidyouknowthatChinaisoneoftheoldestcountriesintheworld?B:Yes,Idid.it’smucholderthanmycountry.A:DidyouknowthatYangtzeRiveristhelongestriverinChina?B:Yes,Idid.It’s6,300meterslong.B:Wow!That’slong!中国的长城共有近一万公里，东起河北秦皇岛的山海关，西到嘉峪关，这是明代修筑长城的两个最大关口，北京境内的长城有600余公里，比较著名的有八达岭长城、金山岭长城、司马台长城、慕田峪长城、居庸关长城和箭扣长城等。TheGreatWall2dReadtheconversationandanswerthequestions:1.Whichisthebiggestman-madeobjectsintheworld？2.WhichisthemostfamouspartoftheMingGreatWall?TheGreatWall.Badalingpartofthewall.1.Fellfreetoaskmeanythingontoday’sGreatWalltour.在今天的长城游中，大家尽管问我任何问题，不要拘束。fellfree是英语口语中一个常用表达。若有人让你feelfreetodosomething，就是让你无需拘束，只管按照自己的意愿去做某事。e.g.A:CanIuseyourbathroom?我可以用一下你的卫生间吗？B:Yes,feelfree.可以，请随意。asfarasIknow是一个固定的表达方式，还可以说sofarasIknow，意思是“据我所知”。2.AsfarasIknow,therearenoman-madeobjectsasbigasthis.据我所知，再没有像它这样大的人造物体了。e.g.AsfarasIknow,Jack’sgottwinsisters.就我所知，杰克有一对孪生姐妹。They’renotcomingtoday,sofarasIknow.他们今天不来了–就我所知是这样的。feelfreethemostpopularquestiontalkabouttheMingDynastytheancientemperorsthemainreasonasfarasIknowtheMingGreatWallHowlongisthewall?It’sabout8,850kilometerslong.Thismakesitthelongestwallintheworld.It’sthemostfamouspart.A:Tomemorizetheimportantphrasesandsentences.B:Tomakesomedialoguesaboutaskingthesizeofobjects.Whichisthehighestmountainintheworld?WhichisthelongestriverinAsia?…freezingadj.极冷的；冰冻的naturen.大自然thickadj.厚的；浓的1.achievementn.成就；成绩e.g.Wefeltagreatsenseofachievementwhenwereachedthetopofthemountain.当我们到达山顶的时候，我们有一种巨大的成就感。2.achievev.达到；完成；成功e.g.Hewillneverachieveanythingifhedoesn’tworkharder.如果他不加紧努力工作，他会一事无成。3.southwesternadj.西南的；西南方向的e.g.IsthisSouthwesternAirline?这是西南航空公司吗？4.includev.包含；包括e.g.Herhobbiesincludeswimmingandgardening.她爱好游泳和园艺。5.conditionn.条件；状况e.g.Thepianowasingoodcondition.这台钢琴状况良好。6.takein吸入；容纳e.g.Fishtakeinoxygenthroughtheirgills.鱼用鳃吸氧气。7.succeedv.实现目标；成功e.g.Ifyoutryhardyou’llsucceed.你如果努力就会成功。常用短语：succeedindoingsth.e.g.Policehavefinallysucceededinsolvingthemystery.警察最终成功破解了这个疑案。8.challengev.&n.挑战；考验e.g.Thejobdoesn’treallychallengehim.这项工作不能真正的考验他。Thenewgovernment’sfirstchallengeistheeconomy.新政府面临的第一个挑战是经济问题。9.inthefaceof面对（困难、问题等）e.g.Inthefaceofdifficulties,he’scompletelyunafraid.他在困难面前毫不胆怯。10.forcen.力；力量e.g.Thethieftookthemoneyfromtheoldmanbyforce.窃贼用暴力抢了老人的钱。WhatdoyouknowaboutQomolangma?TalkaboutQomolangmainpairs.自读文章，在书中划出重点、疑点后，翻译下列短语。先独立完成，后小组商议。1.最危险的山峰2.世界上最危险的运动