1、Unit 6 Keep our city clean！ Introduce What 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”戒“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 _(s
2、ign) of our school. What _(make) our house clean? What can you do _(help) your friends? Li Yang can_(speak) English very quickly. signs makes to help speak Expressions 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
3、更干净？ eg: We can take taxi to the cinema. 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 bike Dialogues Make conversatio
4、ns with your classmates. Using: What makes the air dirty? 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 s
5、olstice 小暑：slight heat 大暑：great hear Expand 立秋：autumn begins 处暑：stopping the 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 cold Summary What makes ? What can we do
6、 to ? Exercise ( )1.Rubbish makes the park . A. beautiful B. dirty C. clean ( )2.We put the rubbish on the floor. A. can B. should C. cant B C Exercise ( )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. around A B Exercise 5.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. Homework Make up a conversation. Using: What makes the air dirty? makes What can we do to keep our city clean? We can
