高一英语课件上学期Unit10高一英语课件

Unit10AreWeEndangeredNo.1MiddleSchoolofHuiningDesigner:LiuyupingJune5th,2005Pre-reading1.Howdoanimalsandplantslivetogether?2.Whatdohumanbeingsneedtosurvive?3.Whatdoplantsandanimalsneedtosurvive?4.Whatdoanimalsdotosurviveinplaceswhereitisveryhotorcold,wherethereisn’tmuchwater,orwhereitisdifficulttofindfood?1.Howdoanimalsandplantslivetogether?Animalsandplantslivetogetherinanecosystemwhereeachspecieshasaspecificfunction.Theycanhelpeachotherbyprotectingthem,animalseatplants,animalcanhelpplantsreproduce.2.Whatdohumanbeingsneedtosurvive?Wenotonlyneedair,water,thesun,butalsowehavesocialneed.3.Whatdoplantsandanimalsneedtosurvive?Water,air,thesun,ahabitatorhomewherethereisenoughfoodandotherresources.Besidesanimalsneedshelteraswellaslivinginsocialgroup.4.Whatdoanimalsdotosurviveinplaceswhereitisveryhotorcold,wherethereisn’tmuchwater,orwhereitisdifficulttofindfood?Theyhavetoadapttosituationsandfindnewhomes.Skimming1.Readthepassagequicklytofindoutthegeneralideaofit.Ittellsuswhyaspeciesbecomesendangeredandwhatwecandotoprotectendangeredplantsandanimals.2.WhatdoyouthinkthetextwantstotellusaccordingtothetitleAreweendangered?Protectingtheanimalsandtheplantsistoprotectourselves.Savingtheearthistosaveourselves.Nowpleasereadthepassagecarefully,andanswerthequestionsonthescreen.1.Whydoanimalsandplantsbecomeendangered?2.Aspeciescanbecomeendangeredwhenitshabitatischangedordestroyed.Canyouthinkofthingshumanbeingsdothatmaydestroyorcausechangesinanahabitat?3.Whatcanwedotoprotectanimalsandplantsthatarebeingendangered?1.Whydoanimalsandplantsbecomeendangered?Animalsandplantsbecomeendangeredwhentheirhabitatisdestroyedorwhenconditionsinthehabitatchangetooquickly.2.Aspeciescanbecomeendangeredwhenitshabitatischangedordestroyed.Canyouthinkofthingshumanbeingsdothatmaydestroyorcausechangesinanahabitat?Yes.Things,suchaspollutingtheair,waterandsoil,usingtoomuchlandandhuntingcandestroyorchangetheanimals’habitat.3.Whatcanwedotoprotectanimalsandplantsthatarebeingendangered?Wemusttryourbesttostoppollutingourenvironmentandpersuadepeopletoprotecttheplantsandanimalsinsteadofhuntingordestroyingthem.Besidesweshouldplantmoretreesandgrass.LanguagepointsNowIthinkyouhaveunderstoodthepassagewell,butyoushouldpayattentiontosomewordsandexpressions,pleaselookattheblackboard.1.keep…from(doing)something(preventoneself/sbfromdoingstheg:Pleasekeepthechildrenfromswimmingintheriver.2.species(pl.unchanged)eg:Thereareover200speciesoffish.3.beusedto(doing)sth.(accustomedtosth)eg:Iamusedtohardwork/workinghard.4.takemeasureseg:Thegovernmenthastakenmeasurestoprotecttheenvironment.5.adapt(becomeadjustedtonewconditions)toeg:Thenewstudentsslowlyadapttonewenvironment.6.makea(no,some…)difference(tosb/sth)eg:Theraindidn’tmakemuchdifferencetothegame.