【课本习题】人教版 必修四 unit 2

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1、【课本习题】人教版必修四Unit2作者：儒风无棣时间：2012年12月28日00:06Unit2课内练习答案（P11Ex.1）Name:YuanLongpingNationality:ChineseAge:82(asof2012)Occupation:scientist/farmerEducation:graduatedfromSouthwestAgriculturalCollegein1953Dream:toexporthishybridricesothatitcanbegrownaroundthegl

2、obeAchievement:in1974,developedhybridricewhichproduces1/3morethannormalriceHobbies:listeningtoviolinmusic,playingmah-jong,swimmingandreadingP11Ex.21.Evenwhenwasayoungman,heknewhowimportantitwastoproducebiggerricecrops.2.Duringhisearlyyears,muchofthecountr

3、ysidewastroubledbyhunger.3.Astheyusehishybridrice,farmersareproducingtwiceasmuchriceasbefore.4.Heisnotinterestedinbuyingthingsforhimselforinhavingacomfortablelife.5.Itdoesnotcostanythingtodreamforsomething.P11Ex.31.DrYuanwantedtoincreasethericeoutputbecau

4、sehesawmanypeoplegohungrywhenhewasyoung.2.Ithinkheismoreascientist,althoughheworksinthefieldslikeafarmer.Hismainpurposeisnottomakeaprofitforhimselfbuttostudyagricultureandusethatknowledgetohimselfbuttoimprovefarmingforfarmerseverywherehisgoalisnottomakemo

5、ney.3.Becauseofhisworkwithdevelopinghybridrice,itseemsthatDrYuanmustbeaverypatientandcarefulman.Hedidn’tgiveupbutkeptworkingonhisproject.Healsoseemstobeaverykindman,whocaresforothers.Hewantstousehisinventiontohelphungrypeoplearoundtheworld.4.IthinkDrYuanw

6、assuccessfulbecausehekeptworkinganddidn’tgiveup.HewasalsoverymotivatedtosucceedandhelpotherfarmersaroundChina.5.Imostlyagree.Ithinkbeingrichmancausealotofproblems,butitreallydependsonthelifeandattitudeofthepersonwhoisrich.Peoplewhoarerichcertainlyhavediff

7、erentproblemsfrompeoplewhoarenot.6.Ithinkdevelopingotherhybridgrainswouldmakeagreatdifferenceintheproblemofworldhunger.HybridgrainsthatcansurviveinverydryorveryhotareaswouldbeveryusefulinAfricaandotherareas.Hybridgrainsthatcannotbeeasilykilledbyinsectsand

8、diseaseswouldusefularoundtheworld.P12Ex.11sunburnt2rid……of3expand4circulate5wouldrather6struggle7export8（be）satisfiedwith9equip10crops11thanksto.P12Ex.21statistics,globe2super,nationalities3Hunger,disease4Vietnam,oc