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能正确运用现在进行时,现在完成时,被动语态,情态动词和used to 句型。
3. Aims of emotion and evaluation
After learning this part, every student will be aware of the serious situation of pollution and take actions to protect our earth.
II. Teaching important and difficult points
How to use the following words and expressions: advantage, used to, throw … into …, lean up, cut down , make a difference
Give strategies about saving the earth.
III .Teaching methods
根据本课教学目标和重点内容,采用听,读,小组讨论,角色扮演等活动来引导学生进行学习。
IV .Teaching tools
ppt, recorder, mutiple-media
V .Teaching procedures
Step 1 Lead-in
Show three pictures about the teacher’s weekend, and ask students to discuss what kinds of pollution they know and what caused problems.
Air pollution Noise pollutionWater pollutionStep 2 Listening (2a&2b)
(1) 2a Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.
A. land pollution B. air pollution
C. noise pollution D. water pollution
Keys: A B
(2). 2b Listen again and complete the sentences.
1) The air is badly polluted because there are ___________ on the road these days.
2) Factories that burn coal also ________ the air with a lot of black smoke.
3) There is also too much rubbish and waste. People _________________ things every day.
4) People are also littering in ______________ like parks. This is turning beautiful places into ugly (丑陋) ones.
Keys: more cars pollute are throwing away public places
Step 3 2c
Use the information in 2a and 2b to role-play conversation between Jason and Susan.
Step 4 Discussion
Ask students what we should do to save the earth. Help students answer, turn off the lights when you leave a room; stop riding in cars; stop using paper towels or napkins; recycle books and paper.
Step 5 Reading
1. Read 2d and complete the chart.