大学英语1(N0.1)

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1、大学英语（1）第一次网络作业(三次网络作业的平均成绩占期末考试成绩30%，请大家在认真复习好《大学英语》课本第一册第1-2单元的课文、词汇与短语后完成如下作业；作业一经批改评分，将不能修改；此次作业完成后应交到“在线作业”一栏本次作业界面中；作业必须按最后一页答卷表格格式作答，不要以附件形式缴交)一.阅读：（1）Theworld’spopulationcontinuestogrow.Therenowareabout4billionofusonearth.Thatcouldreach6billionbytheendofthecentu

2、ryand11billioninafurther75years.Expertshavelongbeenconcernedaboutsuchagrowth.Wherewillwefindthefood,water,jobs,houses,schoolandhealthcareforallthesepeople?Amajornewstudyshowsthatthesituationmaybechanging.Alargeandrapiddropintheworld’sbirthratehastakenplaceduringthepast

3、10years.Familiesgenerallyaresmallernowthantheywereafewyearsago.Itishappeninginbothdevelopingandindustrialnations.Researcherssaidtheyfoundanumberofreasonsforthis.Moremenandwomenarewaitinglongertogetmarriedandareusingbirthcontroldevicesandmethodstopreventordelaypregnancy

4、.Morewomenaregoingtoschoolorworkingatjobsawayfromhomeinsteadofhavingchildren.Andmoregovernments,especiallyindevelopingnations,nowsupportfamilyplanningprogramstoreducepopulationgrow.Chinaisoneofthenationsthathavemadegreatprogressinreducingitspopulationgrowth.Chinahasalr

5、eadycutitsrateofpopulationgrowthbyabouthalfsince1970.EachChinesefamilyisnowurgedtohavenomorethanonechild.Andthehopeistoreachazeropopulationgrowthwiththetotalnumberofbirthsequalingthetotalnumberofdeathsbytheyear2000.5SeveralnationsinEuropealreadyhavefewerbirthsthandeath

6、s.Expertssaidthatthesenationscouldfaceaseriousshortageofworkersinthefuture.Andthepersonswhoareworkingcouldfacemuchhighertaxestohelpsupportthegrowingnumberofretiredpeople.1.Theworld’spopulationcouldreach__B_______.a.6billionin75yearsb.11billionin2075c.11billionbytheendo

7、fthiscenturyd.600millionin15years2.Whichofthefollowingistrue?Ba.Theworld’sbirthrateishigherthantenyearsago.b.Therehasbeenaslowerpopulationgrowthinthepasttenyears.c.Familiesareaslargeasbefore.d.Birthcontrolhasbeenwellpracticedinallnations.3.Bytheyear2000,thenumberofbirt

8、hsandthenumberofdeathsinChinawill___A___.a.begreatlydifferentb.dropagreatdealc.beequald.becomemuchlarger4.Accordingto