高中英语必修三第二单元教案

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1、(3,2)重点词汇1.n.天平，平衡；余额，余数v.平衡；权衡balancedadj.均衡的[典例]1).Manypeoplehavecometorealizethattheyshouldgoonabalanceddiet.2).Imustcheckmybankbalance.3).Trytobalanceyourdietbyeatingmorefruitandlessprotein.[重点用法]beoutofbalance失去平衡[练习]用balance短语填空或翻译。1).He__________________andhurthimselfwhenhewent

2、upstairs.2).Itisdifficultforyouto___________________onanicypavement.2.完成句子It’sveryimportantto____________________(保持大自然平衡)．However，attimesitisdisturbed，resultinginanumberofpossiblyunforeseeneffects.2.n.好奇心；求知欲curiousadj.好奇的curiouslyadv.好奇地[典例]1).Childrenarenaturallycuriousabouteveryth

3、ingaroundthem.2).Iopenedthepacketjusttosatisfymycuriosity.①Therearesomepeoplewhoshowgreatcuriosityaboutotherpeople’saffairs.②Justoutofcuriosity，howmuchdidyoupayforyourcar?③Itiscuriousthatheshouldnothavefailedtherace.[重点用法]outofcuriosity出于好奇withcuriosity=curiously好奇地becuriousaboutsth.对

4、某事好奇becurioustodosth.好奇地做某事[练习]用curiousity的短语或其适当形式填空。1).Margaretlookedathim______________.2).Shedecidedtotryacigarette_____________________.3).Alltheemployeesinthisfirm____________________thepersonallifeofthegeneralmanager.4).________droveMarytoopenherhusband’sletterthoughsheknewitwa

5、swrong.(天津卷)Peoplehavealwaysbeen________aboutexactlyhowlifeonearthbegan.A．curious　B．excitedC．anxious　　　D．careful3.vt.限制；限定n.界限；限度limitedadj.有限的limitlessadj.无限制的[典例]101).Thespeedlimitonthisroadis70mph.2).Thistechniqueisusefulbutithasitslimitations.3).Inmyopinion，youhadbettersetalimitto

6、theexpenseofyourtrip.①Ibelieveteachingshouldnotbelimitedtotheclassroom.②Theamountofmoneyyouhavetospendwilllimityourchoice.[短语归纳]limit短语：limitsb./sth.to...限制某人/某事到某种程度putalimiton...对……限制thereisalimitto对……是有限的withoutlimit无限地，无限制地[练习]用limit的短语或其适当形式填空。1).One’senergyis______.2).__________

7、______________(没有止境)whatyoucandoifyoutry.3).Wemust_______ourweeklyexpenditure______tenpounds.4).Onlya_______numberofplacesareavailable.4.Inmyopinion，keepingdogsshouldnotbebanned，but________tocertainareas.A．limited　　　B．limitingC．tolimit　　　D．tobelimited4.vt.有益于vi.得益于（常与from,by连用）n.利益，好处

8、；津贴1)