《Keep our city clean》PPT(第二课时)

Unit6Keepourcityclean！第二课时IntroduceWhatmakestheairdirty?……makes……Whatcanwedotokeepourcityclean?Wecan……Expressions“Whatmakes”意思是“什么使···变得”。当特殊疑问词做主语成分时，后面的动词要加“s”或“es”。Whatmakestheairdirty？什么使空气变脏?eg：Whomakesuslaughhappily?谁使我们笑得如此开心？Expressions小练习:Therearesome_____(sign)ofourschool.What______(make)ourhouseclean?Whatcanyoudo_______(help)yourfriends?LiYangcan_____(speak)Englishveryquickly.signsmakestohelpspeakExpressions情态动词can意思是“可以,能够”,表示一种能力。它的用法是后面接动词原形。否定形式是cannot,可以缩写为can’t,意思为“不能,不可以”。Whatcanwedotokeepourschoolclean?我们可以做什么让我们的学校更干净？eg:Wecantaketaxitothecinema.我们可以乘出租车去电影院。Expressions小练习:1.Isthecityclean?2.Smokefromfactorymakestheairdirty.(对划线部分进行提问)3.Wecanrideabiketothepark.(同义句转换)Wecangotothepark_______.No，itisn’t.Whatfromfactorymakestheairdirty？bybikeDialoguesMakeconversationswithyourclassmates.Using:Whatmakestheairdirty?···makes···Whatcanwedotokeepourcityclean?Wecan···Expand立春：springbegins雨水：therains惊蛰：insectsawaken春分：vernalEquinox清明：clearandbright谷雨：grainrain二十四节气The24SolarTerms立夏：summerbegins小满：grainbuds芒种：graininear夏至：summersolstice小暑：slightheat大暑：greathearExpand立秋：autumnbegins处暑：stoppingtheheat白露：whitedews秋分：autumnequinox寒露：colddews霜降：hoar-frostfalls二十四节气The24SolarTerms立冬：winterbegins小雪：lightsnow大雪：heavysnow冬至：wintersolstice小寒：slightcold大寒：greatcoldSummaryWhatmakes···?Whatcanwedoto···?Exercise()1.Rubbishmakesthepark.A.beautifulB.dirtyC.clean()2.Weputtherubbishonthefloor.A.canB.shouldC.can’tBCExercise()3.Wecanplantmoretreestheairclean.A.tokeepB.keepsC.keep()4.Let’smovetheboxfromthedesk.A.toB.awayC.aroundABExercise5.Canwekeepourcityclean?（改为陈述句）______________________________6.Itmeans“Noswimming”.（改为同义句）________________________________Wecankeepourcityclean.Itmeansyoushouldn’tswimhere.HomeworkMakeupaconversation.Using:Whatmakestheairdirty?···makes···Whatcanwedotokeepourcityclean?Wecan···