scientistsatwork课件
日期：2010-01-28 01:20
whenandafteryoudoanexperiment?ListentowhatMrsZhuistalkingtohisstudentsforthefirsttime，CurieNewtonEdisonEinsteinLaitebrothersFranklinHawkingScientist?Ascientistisapersonwhohasanexpertknowledgeofoneormoresciences(especiallygainedthroughexperience)Whatarethesubjectsinwhichyoulearnscience?physicschemistrybiologyIfyouwanttolearnthesciencesubjectswell，whatshouldyoualsodobesidestheclasslearning?ThroughamicroscopeWecanlearnthesubjectswellby_________experimentsDoyoustillrememberwhatyourteacheroftenremindyoubefore，focusingonthesubjectsmentionedinthepassageFlamesSafetyinthelabExperimentsLonghairGases______comesfirst!______theteacher’s____________Don’tcomein__________________Studentswithlonghairshould_____it___Always_______________yourteacher’sinstructionsanddon’t_____anything_____yourteachertellsyoutoGiveasummeryoftheinstructionswiththehelpof thefollowingphrases:Beforetheexperiment:Duringtheexperiment______canbeverydangerousYoushould____andcarefully____itNever____anythingBecar，
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