仁愛版初三英語上冊全冊教案2

s4: they have polluted the air.
s5: they have caused noise pollution.
s6: …
t: how does cutting down too many trees affect our environment?
s7: some forests have changed into deserts.
s8: more and more different sorts of animals and plants are disappearing.
s9: when it rains or when the wind blows, the earth is taken away.
step 2  presentation 第二步  呈現(時間:16分鐘)
呈現1a，完成1b。培養學生的聽說技能。
1. (教師展示有關垃圾的圖片，導入1a，呈現新詞匯。)
t: ok. now let’s talk about another serious problem.
(教師展示1a中的圖片。)
t: what’s in the picture?
ss: waste./rubbish.
t: how do people deal with the waste?
ss: put it into the land.
t: so the waste takes up a lot of land and it does great harm to our environment.
(板書并要求學生掌握。)
take up
t: in fact, some of the rubbish can be recycled.
(板書并要求學生理解。)
recycle
t: so how shall we deal with the waste?
(板書)
how shall we deal with the waste?
ss: (幫助學生用英語回答。)we can collect waste paper, soft drink cans, and so on. and then, sort them so that they can be recycled.
t: every day, we produce lots of rubbish. please listen to the tape and fill in the blanks in 1a first. let’s learn about what trouble the waste brings us.
(學生聽錄音，完成1a。師生共同核對答案。)
2. (讓學生再讀1a，回答小黑板上的問題。)
t: please read 1a again and find out the answers to the questions on the small blackboard.
(出示小黑板。)
(1) how much waste is put into the land in britain?
(2) is it easy to find new land to put rubbish in?
(3) can all of the rubbish be recycled?
  (核對答案。)
3. (讓學生依據1a完成1b。)
t: well done! now let’s read 1a again and underline the sentences which have the same meanings as the ones in 1b, then finish 1b.
(核對答案。)
step 3  consolidation 第三步  鞏固(時間:8分鐘)
教師講解短文中的語言點，然后讓學生據此編寫一個如何處理垃圾的對話。培養學生綜合運用語言的能力。
1. (讓學生跟讀1a錄音，并注意語音語調。)
t: please read the passage after the tape, and pay attention to the pronunciation and intonation.
2. (教師講解短文中的語言點并板書。)
t: let’s look at the important points in 1a together.
3. (讓學生討論平時是如何處理垃圾的，并編一個與此內容有關的對話，完成后展示成果。)
t: please discuss this problem: how can we deal with the garbage?
(板書并要求學生理解。)
garbage
example:
s1: we produce garbage every day. it’s a serious problem. how do you deal with it?
s2: i often throw it in the river.
s1: oh, you will pollute the water.
s2: yes. now i know i have polluted the environment, so i won’t do that again.