高二英語 Unit 9 Saving the Earth教學設計
take action in harmony with put an end to wipe out step 9 record after teaching -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------period 2 listeningteaching aims：1.train the students’ listening ability.2.improve the students’ speaking ability by talking about nature ecology and the environment.3.learn and master some useful expressions for supporting an opinion.4.help the students to know something about the pollution.
teaching important points：1.improve the students’ speaking ability.2.improve the students’ listening ability.3.help the students to learn to support an opinion.teaching difficult points：1.how to improve the students’ speaking and listening abilities.teaching methods1.listening-and-answering activity to help the students go through the listening material.2.discussion to make the students practice supporting an opinion.3.individual，pair or group work to make every student work in class.teaching aids：1.a tape recorder2.the blackboardteaching procedures：step 1. lead- in
t: hello, everybody! as we all know, the earth is the only hoe of all creatures. do you think it is beautiful? yes. i agree with you. can you name some places of interest in the world? quite right. we have a lot of places of interest: the great wall, the west lake, zhangjiajie, jiuzhaigou and so on. do you think it is necessary and important for man to protect the earth? yes, of course. have you ever thought that the earth is also very dirty, .very ugly? believe it or not, the earth is getting dirtier and dirtier. look at the pictures in page 65,please
step 2 warming upt: now tell me what you can see in the pictures
but now the earth is being seriously polluted; the trees are being cut down; green hills are becoming less and less. the leaves are falling off the trees. also, different smokes and fogs are polluting the air. besides, waste water from factories and plants are dirtying the water, too. lakes and rivers are no longer safe for fishes, what’s worse, the oceans are being polluted too! as a result people no longer enjoy a happy life as before. the earth is in danger!