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1、Unit20Lesson3ScientificBreakthroughsTeachingaims1.wordsandphrases：2.languagepointsinthetext[来3.readingstrategies4.exercisesabouttext5.vocabulary:phrasalverbsandcompoundwordsTeachingtimeTwoperiods(两课时连堂)[TeachingprocessStep1RevisionReviewthenewwordsoflesson2andhaveadictionStep2learnthenewword
2、soflesson31.asksomestudentstoreadthenewwordsfirstandcorrecttheirpronunciation2.playthetapeandhavethemreadafterthetape3.givethemafewminutestoreadthenewwordsfreely,tellthemiftheycan’treadthewords,encouragethemtoasktheteacher.step3reading1.discussthepicturesandtalkaboutthescientists’majordiscov
3、eries.2.doexercise2bythemselves.3.letthestudentslookatReadingStrategiesandchecktheiranswerstoexercise1and2.4.playthetapetwice,anddoexercise4.step4languagepoints1.thinkoverv.仔细考虑,重新考虑2.beawareofv.知道,意识到eg:Everybodyisawareoftheimportanceofstudy.每个人都意识到了学习的重要性。Iwasnotawareofthefire.我没有意识到火。3.su
4、chasadv.例如...,象这种的,诸如...,譬如说;象...那样的;如此...以致4.apieceofmass5.anamountofadj.许多,相当数量的;一些6.theoryofrelativity7.forexample8.atthespeedof以...的速度ataspeedofeightymilesanhour以每小时80英里的速度atfull[top]speed用全速,开足马力尽力地;尽快地9.beabouttov.将要,正打算eg:Thechorusisabouttosing.合唱团就要开始唱了10.infact[11.awayfrom远离12.thefu
5、rtherawaygalaxiesare,thefastertheymove.13.goonholiday正在休假[去休假]14.comebackv.回来,在记忆中重现,复原,恢复,反驳15.throw…awayv.扔掉,丢弃16.outoftheordinary不平常的,非凡的,例外的17.afewyearslater18.lookfor19.so…that…[20.turnonv.开启,变得兴奋,突然装出,开始21.gooutv.出去,熄灭,过时,罢工,向往,辞职,倒塌22.beinterestedin对...感兴趣23.atthetime当时,在那个时候24.maketh
6、efirstflight25.makegreatcontributionsto…贡献step5vocabulary1.phrasalverbsa)exercise7askthestudentstoreadthelistofphrasalverbs,andthenletthemdotheexercisebythemselves,andchecktheiranswers.b)asktenstudentstodotheexerciseontheblackboard,thencorrecttheiranswers.c)readthequestionsinexercise9,andthe
7、nplaythecassettetwice.d)asksixstudentstoanswerthequestions2.compoundwords(合成词)a)合成名词：名词+名词spaceshipclassroom动词+介词turn-off形容词+名词highway合成动词：safe-guardmass-produceill-treat合成形容词：cold-bloodhand-madehard-workingb)doexercise5orallyc)doexercise3,4,5and6i
