四川省成都市高中英语 Module5 A lesson in a lab reading课件 外研版必修1.ppt

module5alessoninalab reading passagea electricity ilek tris ti n 电electrical i lektrik l equipment电器设备reactvi 化学 反应reactionn 反应oxide ksaid n 氧化物steamn 蒸汽 水气 thebesttitleforpassagea thedifferentusesofmetalsthereactionofmetalsthereactionofmetalswithoxygen whichofthemetalsinthetablereactsthemostwithoxygenandwater whathappenswhenyouheatcalciuminoxygen whichmetalsreactwithsteam 4 doesironhaveasloworfastreactionwithsteam 5 doescopperreactwithwater potassium calciumandsodium itburnstoformanoxide magnesium aluminiumandzinc ithasaslowreaction no itdoesn t wearelivinginaworldmadeofdifferentkindsof someofthemexistintheformofsolid someintheformof andsomegas somebelongstothemetalfamilysuchascalcium zincand mostofthesesubstancescan withwaterandcanrust 生锈 afterbeingputinwaterforsometime whenmetalsare intheairyouwillfindsome isproduced alsometals whenitisveryhotand whenitisrathercold finally ifyouputdifferentsubstancestogether a isformed howinterestingitis substances liquid sodium react burnt oxide expand contract mixture mgfecaalcuznnak magnesiumironcalciumaluminiumcopperzincsodiumpotassium whatcanyouseeinthepicture icanseealab whatapparatus 仪器 doweseeinthelab p reit s balance testtubeholder testtube crucible坩埚 glassrod r d beaker bi k 烧杯 bunsenburner本生灯 煤气加热灯 tongs t z 钳子 tju b kru s bl alcoholburner pleasedescribethepictureusingthewordswehavelearned apparatus装置 设备 testtubetesttubeholderbalancetongsbunsenburnerbeakerglassrodcruciblealcoholburner pleasedescribethepicturesusingthewordswehavelearned apparatus装置 设备 testtubetesttubeholderbalancetongsbunsenburnerbeakerglassrodcruciblealcoholburner whatisthecorrectordertodescribeascientificexperiment aim method result conclusion apparatus conclusionapparatusaimresultmethod carryoutanexperimentsuccessfully it sinterestingtodoanexperiment butwe vegotalotofthingstodobeforeanexperiment first weshouldbecleartheaimoftheexperiment theapparatusweneedandhowwecancarryitout wecallit method wewatchwhat shappeningandgettheresult lastlyitisimportanttohaveadiscussionontheresultoftheexperiment don tforgettowritedowntheconclusion passageb pre reading canweputnailsinwetair ironnailsrustinwetair takeaquicklookatthepassageandputthewordsintherightplaceoftheexperimentreport anexperimentreport1 2 3 1 2 3 4 5 conclusionmethodresultaimapparatus aim apparatus method result conclusion readthepassageagainandthenfillintheformbelow tofindoutif ironnailstesttubesoiltubeholderscottonwoolbunsenburner afteraweek rust not rustin somequestionsindetail 1 whatdowecallthewaterwithoutair 2 whydoweusethecottonwool 3 howcanwegettheair freewater 4 whydoweneedtheoil readthepassageandcompletethetable cottonwool nails irondoesnotrust water irondoesnotrust water water ironrusts completethepassage inthefirstpartoftheexperiment the isdry itshowsthatiron indryair inthesecondpart youmust thewaterto thatthereisnoairinit someoiltothewatercan theairoutofit itshowsthat don trustin water inthethirdpart thetubewithwater itshowsthattheyrustin water air doesn trust boil makesure adding keep nails air free half fill ordinary asimplescientificexperimenttheaim purposeofthisexperimentistofindoutwhether toconducttheexperimentproperly youneedthefollowingthings thestepsareasfollows firstput next andthen finallyyoucansee therefore wecandraw reach arriveattheconclusionthat retellthepassagebasedonthestructure asimplescientificexperimenttheaim purposeofthisexperimentistofindoutwhetherironrustsinair freewater toconducttheexperimentproperly youneedthefollowingthings ironnails testtubes oil tubeholders thestepsareasfollows first half fillatesttubewithwaterandboilthewaterforthreeminutes next puttwocleannailsinthewater andth