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课件网) Air 10 Module 4 The natural world Period 1 (P68-P69) Look and think What’s this And what happened It’s a balloon. What’s in the balloon air Free talk Air is everywhere around us. Air is ... Air has ... We need air to ... We can ... with air. What do you know about air Know about air The meaning of air. air It consists mainly of nitrogen(氮气) and oxygen(氧气). Covering the Earth’s surface. “the gas of life” It’s very important for people. Free talk Can you describe the air colour feel shape taste smell ... Listen and fill in the blanks It has _____ or _____. It has _____. We cannot ____ it, but we can ____ it. It is _____. no colour shape no smell or taste see feel everywhere Listen and say It has no colour or shape. It has no smell or taste. We cannot see it, but we can feel it. It is everywhere. every(每个) where(哪里) adv. 到处 Think, listen and answer Is the air important to all people What is the air also important to Why is it important Yes, it is. It is also important to animals and plants. Because we all need it to keep us alive. Listen and say It is important to all people. It is also important to animals and plants. We all need it to keep us alive. adj. 活着的 keep ... alive: 让……活着 balloon Think and tick What other things need air Think and tick. plane bird kite How do kites and planes stay in the sky They ride on air. Listen and say Look at the kite and the balloon. Look at the plane and the bird. They all need it too. It keeps them high in the sky. What is it us, classroom ... Language points It keeps them high in the sky. 此句型用于表达“它使某人/某物保持……”。句子时态为一般现在时，主语是第三人称单数，谓语动词要用第三人称单数形式。 keep在句中意为“保持”，后可接人称代词宾格。 句型结构： It keeps + 某人/某物 + 形容词（+其他）. healthy, clean ... Watch and follow Listen and say It has no colour or shape. It has no smell or taste. We cannot see it, but we can feel it. It is everywhere. Listen and say It is important to all people. It is also important to animals and plants. We all need it to keep us alive. Listen and say Look at the kite and the balloon. Look at the plane and the bird. They all need it too. It keeps them high in the sky. What is it Groups read Choose your partners. Practise reading. Read aloud with feeling. Ask and answer the questions. What is it, Jill ... Does it have any colour or taste ... Can you see or feel it ... Why is it important ... Look and answer How is the air in the picture It’s dirty. It’s clean. / d t / /kli n/ The air is very dirty. We call this air pollution. Extension Air pollution is harmful! 1 It’s harmful to the health of people. 2 It’s harmful to the nature. 3 Air pollution spreads easily. 4 Air pollution is a global problem. Where does air pollution come from It comes from the smoke. /sm k/ Where is the smoke from It comes from cars, buses and factories. factory / f kt r / Think and talk How to keep the air clean ... ...
