高一英语课件unit16warminguplisteningandspeaking高

LeadinWhatcanyouthinkofwhenyouseethetitle“Scientistsatwork?”SomefamousscientistsintheworldtheirdiscoveriesorinventionsThefieldsofscienceSomethingabouteachfield------Newton(1643-1727)Hediscoveredwhyallthingsfalldowntoearth.TheoryofGravityCharlesDarwin(1809-1882)EvolutionPoRaRadioactivityMadamCurie(1867-1934)AlexanderBellMendeleev(1834---1907)PeriodicTableofElementsEinsteinTheTheoryofRelativityQuestionsforwarmingup1.Inawhole,whatsubjectsareyoulearninginourschool?2.Amongthesesubjects,whatarethesubjectsinwhichyoulearnscience?Physics;Chemistry;BiologyinachemistrylabdoinganexperimentchemistryWhatdoyoulearninthefieldofchemistry?chemicalchangephysicalchangechangegasliquidsolidinaphysicslabdoinganexperimentammeterWhatdoyoulearninthefieldofphysics?physicspowerelectricityheatlightgravitysoundwaveinabiologylablookingatsomethingthroughamicroscopebiologyWhatwillyoulearninthefieldofBiology?livingthingsanimalplantgenecellgermbiologyexperimentInalabListening1Mrs.zhuListentotherecord.TickthethingsthatMrs.Zhutalksabout.()safetyinthelab()experiments()caraccidents()gloves()longhair()shoes()gases()liquids（液体）()flames（火焰）Before-experiment1.Firstofall,don’t________herewithoutyourteacher.Onceyou’reinhere,follow____________________________.2.Whenyoucameintothelabstudentswithlonghairshould________,orputtheirhairundertheirclothes.3.Alwayslistencarefullytoyourteacher’sinstructionsanddon’ttouchanything,unless_______________________________.comeinyourteacher’sinstructionstieitupyourteachertellsyoutoWhile-experiment1.Neverputyournosedirectlyintoaglassoroverabottle.Instead,youshould____________________________________andcarefullysmellit.2.Neverputyourfingersintoglassesandnevertasteanything!Whenworkingwithfire,_____________________________.Whenworkingwithelectricity,makesureyourhandsaredry.3._______________________________________.Thatcanbedangerous.wavesomeairinyourdirectionbecarefulabouttheflameDon’tthrowthingsorstartplayingAfter-experiment1.Cleareverythingawayand________________________________.2.Beforeleavingtheclassroom,________________________________.3.Don’tforgetto__________________________.leavetheclassroomneatandcleanwashyourhandswithwaterandsoapturnoffthelightsandshutthewindowsSpeaking:NewinventionsanddiscoveriesinmoderntimesMaglevtrainMaglevtrainisavehiclethatissuspendedontheairabovetherailwayandcanrunwithhighspeedbytheinteractionalforceofelectromagnetism.SpeakingListenandread:BuildingaHigh-speedMaglevTrainfastandclean/ithasnowheelsandnoengine/itdoesn't’makeanynoiseAdvantagesDisadvantagesIt’awasteofmoney.It’smuchtooexpensive.Discusstheadvantagesanddisadvantagesofthefollowingsingroups1.Iscloningagoodthingorabadone?Advantages:*Itcanhelpsomewomenhavebabies.*Itcanhelpmedicalresearch.Disadvantages:*Itisnotnaturaltomakepeople.*Someonemayuseittodostrangethingsthatmaydoharmtoourhumanbeings.2.Whatdoesnuclearenergybringus?Advantages:*Itmakesenoughelectricityforus.*It’salimitlessreource.Disadvantages:*Itmaycausedeadlyenvironmentalpollution.*Itcostsalotofmoneytobuild/repairapowerstation.3.Whatdoyouthinkofcomputers?Advantages:*Itmakescommunicationcheaper,easierandfaster.*Itoffersthemostup-to-dateinformation.Disadvantages:*Itcanbeunsafebecauseofviruses.*Itmaycauselotsofunfavorableproblems.(overweight,eyesightdecline,toomuchradiation,lackofrest……)4.Arespaceflightsworthwhile?Advantages:*Itmakesresearchofouterspacepossible.*Itmaytakesatellitesintospace.Disadvantages:*It’sveryexpensiveanddangerous.*Itmaybeusedinawar.Homework1.Fullypreviewthereadingpart.2.Readthenewwords