英语人教版八年级下册englsih ppt.ppt

Unit7Whatsthehighestmountainintheworld?,SectionA23a-3c,Whichisthehighestmountainintheworld?WhichisthelongestriverinAsia?,Revision,freezingadj.极冷的；冰冻的,naturen.大自然,thickadj.厚的；浓的,Newwords,1.achievementn.成就；成绩e.g.Wefeltagreatsenseofachievementwhenwereachedthetopofthemountain.当我们到达山顶的时候，有一种巨大的成就感。2.achievev.达到；完成；成功e.g.Hewillneverachieveanythingifhedoesntworkharder.如果他不努力工作，就会一事无成。,Learnmorenewwords.,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.Ifyoutryhardyoullsucceed.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.难事;难题”。例如：Peoplelearninganewlanguagemayfacesomedifficulties.人们学习一门新的语言时可能会遇到一些困难。,作不可数名词时，difficulty可译作“困难；艰难；辛苦；费劲”，例如：Hehadgreatdifficultyinfindinganewjob.他找新的工作费了很大劲。Wefoundthehousewithoutdifficulty.我们轻而易举的找到了那座房子。2)include表示“包括；包含”，是一个及物动词。例如：Doesyourpriceofthebikeincludethislight?你们的车价包含这盏车灯吗？,3.Itisalsoveryhardtotakeinairasyougetnearthetop.Itis+adj.+todosth.，it作形式主语放在句首，而把真正的主语放在句尾。常用于此句型的形容词有important,difficult,dangerous,necessary,useful,possible等，用来对todosth.进行说明。此句型可以转换成Todosth.is+adj.。,e.g.ItisimportanttostudyEnglishwell.学好英语很困难。ItsverydifficulttoclimbQomolangma.攀登珠穆朗玛峰很难。,4.Thespiritoftheseclimbersshowsusthatweshouldnevergiveuptryingtoachieveourdreams.1)giveup意为“放弃”，后面可以接名词、代词或v-ing形式作宾语。注意：如果其宾语是名词，那么名词可以放在give和up之间，也可以放在up之后；如果其宾语是代词，那么代词只能放在give和up之间。如：,Myunclewantstogiveupdrinkingwine.我叔叔想戒酒。AlthoughEnglishisnteasytolearn,Iwontgiveitup.虽然英语不易学，但我不会放弃。2)achieveourdream相当于makeourdreamscometrue，其中动词achieve表示“(通过努力)实现；取得；获取；达到(梦想、成绩、成功、目的)”等。例如：,e.g.Heachievedgreatsuccessinashorttime.他用很短的时间取得了极大的成功。LinTaoachievedverygoodexamresults.林涛考试取得了很好的成绩。,5.Whydosomanypeopletrytoclimbthismountaineventhoughitisdangerous?eventhough用作从属连词，意为“即使；尽管”，相当于evenif，引导让步状语从句，一般不与并列连词but连用。如：Mr.Wangwillcomeontimeeventhoughitrains.尽管下雨，但王老师会按时来。,TheYellowRiverislong.TheYangtzeRiverisalot_thantheYellowRiver.TheNileis_ofall.,longer,thelongest,Completethesentencesusingtheinformationintheforms.,Exercise,TheYangtzeRiverisnot_long_theNile.=TheYangtzeRiverisnot_thantheNile.,asas,longer,MountTaiishigh.MountHuangisalittle_thanMountTai.Qomolangmais_ofall.,MountTaiisnot_high_Qomolangma.=MountTaiisnot_thanQomolangma.,higher,thehighest,asas,higher,1.ThepopulationofSingaporeislarge.2.ThepopulationofMalaysiaismuch_thanthatofSingapore.3.ThepopulationofChinais_ofall.,larger,thelargest,4.ThepopulationofSingaporeis