Unit17GreatwomenTalkaboutsubjectswithyourpartner:Whatisyourfavouritesubject?Why?Canyoudescribeit?(…ismyfavourite,because…)1.physics2.chemistry3.biologyTest-tubebabyPowerForceElectricityCellAnimalSoundMentalGermFlamesCloneDarwinStevenHawkingLiZhengdaoThomasEdisonAlbertEinsteinNewtonMadamCurieAlfredNobelNothingisimpossibleforawillingheart.Wherethereisawill,thereisaway.Talkabouttheexperimentthatimpressesyoumost:Thefollowingquestionsmayhelpyou:Wheredidyouhaveyourlastexperiment?Whatwasthepurposeofit?Whatdidyouneedtocarryouttheexperiment?Howdidyoufeel?Didyoulearnanythingnewfromit?Safetycomesfirst!2.Followtheteacher’sinstructions.3.Bottlesmaycontaindangerousgases.4.Immediatelywashyoureyeswithalotofwater.5.Cleareverythingawayandleavetheclassroomneatandclean.Washyourhandswithwaterandsoap.Turnoffthelightsandshutthewindow.1.Safetycomesfirst!Pleasechecktheanswers:ListeningMr.Deng:Everybodylistencarefully!TodayMrs.Zhuwillexplainaboutthesafetyinstructionsforthelab.Ifyouhaveanyquestions,youcanraiseyourhand.Mrs.Zhu:Forexperimentsthataredoneinthislab,everybodyshouldremember:Safetycomesfirst!Thisisveryimportant,becausetheexperimentsarefunandveryinteresting,butwedon’twantanyaccidents.Firstofall,don’tcomeinherewithoutyourteacher.Onceyouareinhere,followyourteacher’sinstructions.Whenyoucomeintothelab,studentswithlonghairshouldtieitup,orputtheirhairundertheirclothes.Alwayslistencarefullytoyourteacher’sinstructionsanddon’ttouchanything,unlessyourteachertellsyouto.Mr.Deng:Canyouexplainabitmoreaboutdoingexperiments?Mrs.Zhu:Sure.Neverputyournosedirectlyintoaglassoroverabottle.Gasescanbeverydangerous.Instead,youshouldwavesomeairinyourdirectionandcarefullysmellit.Neverputyourfingersintoglassesandnevertasteanything!Whenworkingwithfire,becarefulabouttheflame.Whenworkingwithelectricity,makesureyourhandsaredry.Whenanythinggetsintoyourmonthoreyes,immediatelywashwithalotofwater.Rememberthattheclassroomisn’taplayground.Don’tthrowthingsorstartplaying.SunYao:Whataboutwhenweleave?Mrs.Zhu:Whenclassisover,cleareverythingawayandleavetheclassroomneatandclean.Beforeleavingtheclassroom,washyourhandswithwaterandsoap.Don’tforgettoturnoffthelightsandshutthewindows.Listwhatwecandoandcan’tdoinalabasmuchaspossible.DosDon’ts1.Designtherulesforthechemistrylabingroupsandrecommendittotheschoolleader.2.FinishWBTalkingandpractisegivinginstructions.3.PreviewSpeakingandtrytosearchforsomeinformationabutthenewinventionsanddiscoveries.
