課題：Book6Unit4Usinglanguage第周第課時(shí)授課人：審批人：學(xué)習(xí)目標(biāo)學(xué)習(xí)重點(diǎn)Toknowsomethingaboutthegreatscientists.學(xué)習(xí)難點(diǎn)Howtohelpthestudentsmasterthegeneralideaofthepassage.學(xué)生活動(dòng)二次備課自主研討目標(biāo)與導(dǎo)入Step1：lookatsomebeautifulpicturesandthenthinkaboutsomequestions：whatcanwedoaboutglobalwarming自學(xué)與診斷Skimming：Skimthelettersandfindwhothewritersareandwhattheirpurposeofwritingthelettersis.Thefirstletteriswrittenbyastudentwhoisaskingforsuggestionsforhisproject—globalwarming.ThesecondletteriswrittenbyaneditorofEarthCaremagazine.Heoffersthestudentsomesuggestionsonwhattodoaboutglobalwarming.合作互動(dòng)互動(dòng)與展示Readthetextcarefullyandfillintheblanks.Whatcanwedoaboutglobalwarming?◆Turna(n)_________________offwhenyou’renotusingit.◆Putonmoreclothesinsteadofturningupthe_____.◆Walkor__________insteadoftakingmotorvehicles.◆________cans,bottles,plasticsandnewspapers.◆Buythingsmadefrom____________________. ◆Buyproductsthataremadetosave________.◆__________inyourgardenoryourschoolyard.◆Talkwithyourfamilyandfriendsabout_______________.electricalapplianceheatrideabikeRecyclerecycledmaterialsenergyPlanttreesglobalwarming精講與點(diǎn)撥2ListEarthCare’ssuggestionsandtheningroups,discusswhetheryouthinkyoucancarryouteachsuggestion.EarthCare’suggestionsReasons（1）Ifyou’recold,putonmoreSaveenergyclothesinsteadofturninguptheheat.（2）Motorvehiclesusealotofenergy,Saveenergysowalkorrideabikeifyoucan.（3）Recyclecans,bottles,plasticsandSaveenergynewspapersandbuythingsmadefromrecycledmaterials.檢測(cè)與評(píng)價(jià)總結(jié)與升華1.Thatprobablydoesnotseemmuchtoyouorme,butitisarapidincreasewhenparedtoothernaturalchanges.(P26)解析：在第二個(gè)分句中，whenparedtoothernaturalchanges作時(shí)間狀語(yǔ)，when后省略了itis。在when引導(dǎo)的時(shí)間狀語(yǔ)從句中，如果從句的主語(yǔ)與主句的主語(yǔ)一致，且謂語(yǔ)含有be動(dòng)詞時(shí)，可將主語(yǔ)與be動(dòng)詞省略。達(dá)標(biāo)檢測(cè)題1.Sohowhasthiseaboutanddoesitmatter?(P26)【考例】It’salready10o’clock.Iwonderhowit______thatshewastwohourslateonsuchashorttrip.A.cameover B.cameoutC.cameabout D.cameup【點(diǎn)撥】選C。......isduetotheburningoffossilfuelslikecoal,...(P26)【考例】Mostairpollutioniscausedbytheb