1、Unit6Keep our city clean！IntroduceWhat makes the air dirty?makes What can we do to keep our city clean?We can Expressions“What makes”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”。What makes the air dirty？什么使空气变脏?eg：Who makes us laugh happily?谁使我们笑得如此开心？Expressions小练习:There are some _(sign)of our school.Wh
2、at _(make)our house clean?What can you do _(help)your friends?Li Yang can_(speak)English very quickly.signsmakesto helpspeakExpressions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cant,意思为“不能,不可以”。What can we do to keep our school clean?我们可以做什么让我们的学校更干净？eg:We can take taxi to the cinema.
3、我们可以乘出租车去电影院。Expressions小练习:1.Is the city clean?2.Smoke from factory makes the air dirty.(对划线部分进行提问)3.We can ride a bike to the park.(同义句转换)We can go to the park _.No，it isnt.What from factory makes the air dirty？by bikeDialogues Make conversations with your classmates.Using:What makes the air dirty
4、?makes What can we do to keep our city clean?We can Expand立春：spring begins雨水：the rains惊蛰：insects awaken春分：vernal Equinox清明：clear and bright谷雨：grain rain二十四节气The 24 Solar Terms立夏：summer begins小满：grain buds芒种：grain in ear夏至：summer solstice小暑：slight heat大暑：great hearExpand立秋：autumn begins处暑：stopping th
5、e heat白露：white dews秋分：autumn equinox寒露：cold dews霜降：hoar-frost falls二十四节气The 24 Solar Terms立冬：winter begins小雪：light snow大雪：heavy snow冬至：winter solstice小寒：slight cold大寒：great coldSummaryWhat makes?What can we do to?Exercise()1.Rubbish makes the park .A.beautiful B.dirty C.clean()2.We put the rubbish o
6、n the floor.A.can B.should C.cantBCExercise()3.We can plant more trees the air clean.A.to keep B.keeps C.keep()4.Lets move the box from the desk.A.to B.away C.aroundABExercise5.Can we keep our city clean?（改为陈述句）_6.It means“No swimming”.（改为同义句）_We can keep our city clean.It means you shouldnt swim here.HomeworkMake up a conversation.Using:What makes the air dirty?makes What can we do to keep our city clean?We can
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