unit16课件
日期：2010-07-24 07:29
Unit16ScientistsatWorkAstronomicaltelescopeThenatureoflightningQuestion:Whenyou’redoingexperimentinalab，whatshouldyoupayattentionto?Student1:Weshouldnt’tenterthelabwithoutateacherStudent2:Weshouldfollowtheteacher’sinstructionsStudent3:Don’ttouchanythingwithoutteacher’spermissionStudents:-----Listening1ListentothetapeTickthethingsthatMrsZhutalksabout()safetyinthelab()gloves()longhair()experiments()shoes()liquids()caraccidents()gases()flames√√√√√2Listencarefullyandanswerthefollowingquestions（1）Whatisthemostimportantthingstudentsshouldremember?Safetycomesfirst!（2）Whatisthefirstthingstudentsshoulddowhentheycomeintothelab?Followtheteacher’sinstructions（3）Whyshouldstudentsbecarefulsmellingfrombottles?Bottlesmaycontaindangerousgases（4）Whatistobedonewhenanythinggetsintoyoureyes?Immediatelywashyoureyeswithalotofwater（5）Whatshouldstudentsdobeforeleavingthelab?Cleareverythingawayandleavetheclassroomneat，
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