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情感态度 Everyone should keep our rivers clean.
学习策略 Listening for key words, transforming information.
重点难点 Target Language
1．How to train students’ listening ability．
2． How to train students’ communicative competence．
教学内容及问题情境 学生活动 设计意图
1a. To introduce Ss to the unit goal, talk about pollution and environmental protection.
Picture: The four pictures show different forms of environmental pollution. The first picture on the left shows an airplane flying over some houses. The airplane seems to be flying a quite a low altitude, so the noise level must be quite high foe the people living in these houses. This is considered noise pollution. The second picture shows some vehicles give out exhaust fumes and causing air pollution. In the third picture, we see big chimneys giving off a lo of smoke and polluting the air. The last picture shows a rubbish dump hat pollutes the environment around it.
What other things cause pollution?
Ask Ss to complete the activity as a class, then work in pairs to think of more words to add to the lists for each column.
1b. To help Ss recognize the target language in natural speech.
Everyone needs to play a part:
In the conversation, the boys are talking about the river in their town being polluted by litter and industrial waste. One of them wants to write to the government about the problem, but the other boy wisely says that cleaning up the river is everyone’s responsibility, not just the government’s.
Predicting the answers
Ss work in pairs to predict the answers to the activity, then play the recording for Ss to fill in the gaps and review answers as a class.
1c. To give Ss guided practice in using the target language to talk about pollution and environmental protection.
Review of used to and should. Look at the pictures and write these words in the boxes below. Then write other words you know.
Work in pairs.
Listen and circle the words in 1a that Victor and Ginny use to describe the animals.
呈现本课重点词汇，认知，理解，记忆。
通过语言交际让学生掌握本节课所学内容
通过听力训练，提高学生的听力能力。
板书设计
Unit 13 we’re trying to save the earth! Section A 1a ~ 1c
We’re trying to save the earth. (Present progressive)
People are throwing litter into the river.
The river used to be so clean. (Used to )
Everyone should help to clean up the river. (Modal verb)