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(2) Light pollution is harmful to our eyes.
(3) Litter influences the look of our cities.
Ⅱ. Teaching aids 教具
录音机/图片/小黑板
Ⅲ. Five-finger Teaching Plan 五指教学方案
Step 1 Review 第一步 复习(时间:2分钟)
1. (通过对第一单元的复习，导入被污染的西山景象，用课本中的图画来引出新词汇。)
T:Last unit, we have learned some changes in our hometown. Can you say some?
S1:The roads are wider.
S2:The buildings are higher and higher.
S3:The living conditions have improved…
S4: …
T:Yes. Many changes have happened in our hometown. Let’s look at the two pictures about West Hill.
Step 2 Presentation 第二步 呈现(时间:15分钟)
T:Are there any differences between them?
Ss:Yes.
T:Let’s look at Picture 1. What can you see on West Hill in the past?
S5:I can see some flowers and grass.
S6:I can see a butterfly dancing.
T:Yes, there is a butterfly dancing.
(板书并讲解)
there is/are … doing sth.T:What else can you see?
S7:I can see a rabbit.
S8:I can see some houses.
S9:…
T:(指着一蜜蜂)What’s it?
Ss: 蜜蜂。
T:It’s a bee. There is a bee flying.
(板书并讲解且要求掌握。)
beeT:(指着小溪) What’s it?