unit 1 great scientists教案

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1、Unit1GreatScientists教案Unit1GreatSientistsPerid1aringup≈Pre-readingTeahingai:TlearnsethingabutsefaussientistsTeahingpredures:Step1Lead-in1anunaesefaussientists?2Inurpinin,hatqualitiesshuldasientisthave?(nharateristis:bright/brightness;reative;autius;

2、persuasive;strit;psitive;-perative;enthusiasti;et)3hatindfsientistsdun?(gelgist;gegrapher;atheatiian;phsiist;heist;agriulturist;astrner;btanist;bilgist;inventr…)Step2aringup1Page1,SBAsSstfinishthequizandfinduthnsst2Shsepituresfthesegreatsientistsandhav

3、eabriefintrdutinttheStep3Pre-reading(Disussin)1hatdunabutinfetiusdiseases?hatindfinfetiusdiseasesdun?(Infetiusdiseasesanbespreadeasil,thehaveunnnauseandadgreathartpepleSARS;Birdflu;AIDS;et)2hatdunabuthlera?(Tanintrduethisdiseasebusingslides)3Dunhtprvea

4、neideainsientifiresearh?Disussinsallgrupsthestagesinexaininganesientifiideahatrderulduputthein?(Findaprble→aeupaquestin→Thinfaethd→lletresults→Analsetheresults→Repeatifneessar→Draanlusin)Step4Languagepints1disvervttbethefirsttfind,learnf,rbserve发现，发觉di

5、sver通常指被探索或被揭示物早就客观存在着；invent指的是发明原先不存在的东西。如：lubusdisveredAeriain1492AlexanderGrahaBillinventedthetelephnein18762asnusedinparisns用于比较：像……一样He’sasldasIainthesaeannerrathat照……的方式DasIsahile;henHesaherassheasgettingffthebusbeauseAsshehasnar,shean’tgetthere

6、easilthughTiredasIas,Itriedthelptheasitis:inrealit;infat事实上Ihpethingsuldgetbetter,butasitisthearegettingrse(7)asitere:stspea;inaertaina可以说;跟……一样Heisbestfriend,brther,asitere3harateristi(1)naspeialandeasilregnizedqualitfsenersething特色,特性Aharateristifthi

7、sanialisitsabilittlivefralngtieithutater(2)adtpial;representingapersn’srthing’susualharater独特的Iheardfriend’sharateristivie4theafdingsth意为“做……的方法”，还可以表达为theatd。如：Sheshedustheafleaningit=SheshedustheatleanitIdn’tliethea(that/inhih)uspeaturfatherputsthfra

8、rd:(1)tffer(anidea,suggestinet)frnsideratin提出Heputfrardaneplan(2)拨快Putthelsfrard将时钟拨快(3)推荐某人或自己任职位;提名aIputurnaefrardasapssiblehairanftheittee?我能否提名你当委员会主席吗?6infetiusad(1)apablefausinginfetin传染的,能够导致传染病的hleraisaninfetiusdisease(2)ausedbr