Unit7KnowOurWorldLesson38:TheWorldIsaBigPlaceTounderstandthetextTousethewordscorrectly:intotalonethirdbecoveredwith…twothirdsObjectivesplanetbilliontotalintotalincreasesurfaceIndiann.

行星n.

十億；千兆n.

總計(jì)；總數(shù)adj.

總的；總計(jì)的總計(jì)；合計(jì)；總共v.

增加；增大n.

表面；表層adj.

印度的n.

印度人AtlanticArcticonethirdtwothirdsbecoveredwith…n.&adj.

大西洋(的)n.&adj.

北極的三分之一三分之二被……覆蓋Howmanypeoplearethereintheworld?Largepopulation1.Intheyear2010,theworld’spopulationwasover__________.7billion3.By_____,theworld’spopulationmayreach9billion.2.By_____,theworldmayhaveabout8billionpeople.20252050AfricaAsiaNorthAmericaEuropeOceaniaAntarcticaSevenContinents(洲)SouthAmericathePacificOceanthePacificOceantheAtlanticOceantheIndianOceantheArcticOceanFourmainOceans(海洋)大西洋太平洋太平洋印度洋北冰洋1.Thereare________continentsintheworld.Theyare______________________________________________________________________.2.Thereare______mainoceansintheworld.Theyare_____________________________________________________________________.sevenfourAsia,Europe,Africa,NorthAmerica,SouthAmerica,OceaniaandAntarcticatheAtlanticOcean,theIndianOceanandtheArcticOceanthePacificOcean,Whichcontinentiscoveredwithsnowandiceallyearround?AntarcticaThePacificOceanWhat’stheworld’slargestocean?ReadingReadthelessonandmatcheachparagraphwithitsmainidea.Para.1Para.2Para.3Para.4Para.5Sixofthesevencontinentsaregoodforpeopletoliveon.Weshouldtreattheearthwell.Anincreasingpopulationisabigproblemfortheearth.Twothirdsoftheearthiscoveredwithoceans.Peoplecannotliveeverywhereontheearth.LanguagePoints1.pointout指出2.facev.面臨，面對

n.臉，面孔3.hundred---thousand---million---billion

百千百萬十億九十億

ninebillion數(shù)十億

billionsof4.over=morethan多于；超過

5.intotal總計(jì)；合計(jì)；總共

atotalof…總數(shù)為……翻譯：我們班總共有60人。Thereare60studentsintotal.Ourclasshasatotalof60students.6.onethird三分之一twothirds三分之二

英語中分?jǐn)?shù)的表達(dá)法：先分子后分母；分子基數(shù)詞，分母序數(shù)詞；分子大于一，分母用復(fù)數(shù)。注：aquarter表示四分之一五分之二四分之三八分之一twofifthsthreequartersoneeighth7.becoveredwith被……覆蓋coverwith在……上覆蓋上……8.allyearround全年9.inthefuture將來

infuture今后=fromnowon10.treatsb./sth.well好好對待……

翻譯：我們應(yīng)當(dāng)好好對待自己的父母親。

Weshouldtreatourparentswell.改成被動(dòng)句Ourparentsshouldbetreatedwellbyus.Fillintheblankswiththecorrectformsofthewordsinthebox.increasedrysurfacebilliontotalThenumberofswimmershereis__________quicklybecauseit’sveryhotthesedays.Theschoolhasa_____of900students.Ithinkitmaybethe_______seasonoftheyear.increasingtotaldriestincreasedrysurfacebilliontotal4.The________ofourbodyisskin.Itprotectsus.5.Howmany________ofpeoplearethereintheworldnow?surfacebillionsHomeworkReviewLesson38.

2.Writeashortpassageabout