Unit7KnowOurWorldLesson38:TheWorldIsaBigPlace!•Howmanycontinentsarethereintheworld?Whatarethey?•Whatdoyouknowabouttheplacewhereyoulive?ThinkAboutItplanetn.行星billionn.十亿；千兆totaln.总计；总数adj.总的；总计的increasev.增加；增大Indianadj.印度的n.印度人Atlanticn.&adj.大西洋（的）Arcticadj.北极的Learnsomenewwords1.Whatistheproblemtheearthfaces?2.Peoplecanliveonthesevencontinents.()(判断正误)3.Howmuchoftheworldiscoveredwithland?4.Whatislargestpartoftheocean?Thepopulationisincreasingveryquickly.FOnethird.ThePacificOcean.Listentothepassageandthenanswerthequestions.Let’sDoIt!Readthelessonandmatcheachparagraphwithitsmainidea.Paragraph1a.Sixofthesevencontinentsaregoodforpeopletoliveon.Paragraph2b.Weshouldtreattheearthwell.Paragraph3c.Anincreasingpopulationisabigproblemfortheearth.Paragraph4d.Twothirdsoftheearthiscoveredwithoceans.Paragraph5e.Peoplecannotliveeverywhereontheearth.Fillintheblankswiththecorrectformsofthewordsinthebox.increasedrysurfacebilliontotal1.Thenumberofswimmershereis_________quicklybecauseit’sveryhotthesedays.2.Theschoolhasa______of900students.3.Ithinkitmaybethe_____seasonoftheyear.4.The______ofourbodyisskin.Itprotectsus.5.Howmany______ofpeoplearethereintheworldnow?increasingtotaldriestsurfacebillionsMatchthesevencontinentswiththeircorrectdescriptions....,theworld‘spopulationwasover7billionintotal.世界上人口总计已超过70亿。(1)population意为“人口”，常被看作是一个整体，一般不加s。作主语时，谓语动词要用单数形式。如：ThepopulationofGermanyisabout81,000,000.德国大约有八千一百万人口。Languagepoints(2)表示“……的人口”可用“thepopulationof+地名”，也可用“thepopulationin+地名”，作主语中心词时，谓语动词用单数形式。如：ThepopulationofCanadaisabout30,000,000.加拿大的人口是三千万。表示某国、某城市有多少人口时，还可用...hasapopulationof...结构。如：Thecityhasapopulationof30,000.那座城市有三万人口。I.根据首字母或汉语提示，完成单词。1.ThebiggestoceanintheworldistheP_______Ocean.2.Almosteveryoneknowsthee_____goesaroundthesun.3.Desertsmaycoverthree_______...
