高中英語module5alessoninlab教案外研版必修1

Module5AlessoninalabPeriod1Teachingaims:Letthestudentsknowsomewordsrelatedtoexperiments,thelabandsomethinglikethatReviewtheusageofnumbers/fractions/percentagesKnowsthaboutDegreesofcomparison.Teachingsteps:I.Allofushavelearnedphysics,biologyandchemistryinmiddleschool.Nowletseehowmuchyouknow.DealwithActivity1onpage41.Choosethecorrectanswerstothequiz.Nowplaythetapeforthestudentstolistenandchecktheiranswers.Answers:1a2a3a4a5b6b7b

’shaveFirstreadthewordsandthenaskthesstotranslatethemintoChinese.Atlastputtheminpairsorgroups.Answers:air-gas-oxygencontract-expandearth-sun-moongas-liquid-solidIII..Answerthequestions.Answers:Electricity,iron,somemetalsandairarenaturalSteel,somemetalsandglassareman-madeElectricityandsomemetalscanbeman-madeandoccurnaturallyIV.Turntopage42.Activity1Readthenumbers.Payattentiontothepositionoftheword“and”.V.Fractions.基數(shù)詞+序數(shù)詞，當(dāng)分子大于1時，分母要加s作主語時，謂語動詞要依據(jù)of后邊的名詞決定。Answers:two-fifthsfive-eighthsnine-tenthsthree-eighthsfive-sixthsVI.Percentages基數(shù)詞+percent/percent注意：percent永久單數(shù)形式作主語時，謂語動詞要依據(jù)of后邊的名詞決定。VII.Degreesofcomparison1&2英語倍數(shù)表達(dá)法用英語表達(dá)"A是B的N倍長（寬，高，大，重等）"，"A比B長（寬，高，大，重等）倍"或"A的長度（寬度，高度，大小，重量等）是B的N倍"，可用以下幾種句型。1."A+be+倍數(shù)+as+計(jì)量形容詞原級+as+B".Thistreeisthreetimesastallasthatone.這棵樹是那棵樹的三倍高。Hisfatheristwiceasoldashe.他父親的年齡有他兩倍大。2."A+be+倍數(shù)+計(jì)量形容詞比較級+than+B"TheYangtzeRiverisalmosttwicelongerthanthePearlRiver.長江差不多比珠江長兩倍。Thedictionaryisexactlyfivetimesmoreexpensivethanthatone.這本詞典比那本恰巧貴5倍。3."A+be+倍數(shù)+the+計(jì)量名詞+of+B"Thenewlybroadenedsquareidfourtimesthesizeofthepreviousone.新擴(kuò)建的廣場是未擴(kuò)建時的四倍大。4."The+計(jì)量名詞+of+A+be+倍數(shù)+that+of+B"Thesizeofthenewlybroadenedsquareisfourtimesthatofthepreviousone.新擴(kuò)建的廣場為從前的四倍大。5.其余I'mtwice/doublehisage.我的年齡是他的兩倍。I'vepaidfivetimestheusualpriceforthestamp.我出了5倍于平時的價錢買這枚郵票。Theaverageincomeofthestaffhasbeenincreasedby50percentcomparedwithlastyear.與昨年對比，該單位員工的收入增添了50%.ThepriceofTVsaretwofold(adj.兩部分的,兩重的)downovertheseyears.近幾年來，電視機(jī)的價錢降落了兩倍。the+比較級，the+比較級意為“越，越”。前面部分是從句，后邊部分是主句。Theharderyouwork,themoresuccessfulyouwillbe.Theearlieryoucome,thebetterplaceyoucanfind.“比較級+and+比較級”表示“愈來愈”。Hebecomesfatterandfatter．比較級前還能夠用much，even，still，alittle等來修飾。HomeworkDealwiththeexercisesonpages45,46and47Module5AlessoninalabPeriod2Teachingaims:RevisetheusageofDegreesofComparisonbytranslatingsomesentences.KnowmoreaboutthetwoexperimentsTeachingsteps:I.TranslatethefollowingsentencesintoEnglish.1．這座新大樓是那幢舊樓的3倍大小。Thenewbuildingisthreetimesthesizeoftheoldone.Thenewbuildingisthreetimeslargerthantheoldone.Thenewbuildingisthreetimesaslargeastheoldone.2．孫老師說英語和你同樣流暢。MrSunspeaksEnglishasfluentlyasyou.3．他越努力學(xué)習(xí)，就越感覺快樂。Theharderheworks,thehappierhefeels.4．那個女孩越長越美麗了。Thegirlbecomesmoreandmorebeautiful.II.CometotheReadingandVocabulary.Askthequestion:Whatarethestagesofascientificexperiment?Theyareasfollows:aim—methodresult—conclusionNowreadpassageAandfinishActivities2and3.Answer:ThereactionofmetalsAnswers:potassium,calcium,andsodiumItburnstoformanoxideMagnesium,aluminum,andzincIthasaslowreaction.No,itdoesn’t.III.Prepareforthetest.Preparesometesttubes,someoil,testtubeholder,cottonwool,ironnails,Bunsenburner.Describetheexperimenttothestudentsandaskthestudentstoexplainwhatwillhappenintheend.AskthestudentstoreadPassageBandtrytofillinthetableonpage45.Answers:StageA

Ironindryaircottonwool

ironwaterwater

in

air-free

ironwaterwater

in

ordinaryStartingexperimentStageB

nails

water1weeklaterStageC

Irondoesn

’trustIrondoesnotrust.

Ironrusts.ResultAskthestudentstoreadthetextforsometimeandtrytoretelltheexperimentwiththehelpofthetable.Ifthereistime,checkifsomecan.IV.Homework:Retelltheexperimentandreportasimilarexperiment.Module5AlessoninalabPeriod3Teachingaims:Enablingthestudentstoknowhowtoreadthedecimals.knowsthaboutthescienceteachinginaseniorhighschool.Teachingsteps：I.Asksomestudentstoreadthefollowingnumbers:623,100,486563,256,36912,000,865,0653/72/93/1026%48%0.83.619.3622.58II.DealwithEverydayEnglishonpage48.Answers：1a2b3a4b5aIII.Turntopage49.CulturalCorner.Highschool.Thepassageisabouthisdescriptionofscienceteachinginhisschool.Nowreadthepassagequicklyandtrytofindtheanswerstothefollowingquestion:WhyhasMarkbecomemoreinterestedinscience?--Becausehehasmovedtoanewschoolwithgoodfacilitiesandteachers.Readthepassageagainandtrytogetasmuchinformationaspossible.Dothefollowingquestions.WasMarkinterestedinscienceatfirst?--No.Whathappenedtohisfeelingsaboutscience?--Hisfeelingsaboutsciencehavenowchanged.Howdidhegetinterestedinscience?Thescienceteachersatthenewschoolareexcellent,thesciencefacilitiesareverygood,withlabsthathaveallthelatestequipm