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Teaching procedures 教学过程
Step 1 Greeting
1. Greeting
T: Good morning, boys and girls.
S: Good morning, Mr/Miss …
2. Free talk
T: What’s the weather like today in Taizhou?
S: It’s …
T: OK! How do you think about our city? Do you think it is clean or dirty? Why?
S: I think it’s clean, because …/I don’t think it’s clean. I think it’s dirty, because …
(让学生就我们城市整洁与否进行讨论并说出理由)
【设计意图：让学生通过讨论，回忆“城市环境”这一话题。】
Step 2 Revision
T: So look at these pictures, what makes our city dirty? (给学生一至两分钟时间准备，要求学生完整复述第一行图片)
S: Smoke from cars makes the air dirty. Black smoke from factories makes the air dirty. Rubbish makes the streets messy and dirty. The rubbish in the water and the dead fish make the river dirty.
T: (展示第二行图片) What can we do to keep our city clean?
S: We can …
【设计意图：让学生通过图片回忆课文，并试着复述课文。】
Step 3 Grammar time
Presentation
T: (逐一呈现问题)
(1) What makes the air dirty?
(2) What makes the streets messy and dirty?
(3) What makes the river dirty?
S: (逐一回答问题)
(1) Smoke from cars makes the air dirty.
Black smoke from factories makes the air dirty.
(2) Rubbish makes the streets messy and dirty.
(3) The rubbish in the water and the dead fish make the river dirty.
T: (教师将学生的回答整理、合并，完整呈现Grammar部分)