The First Period—Section A(1a－2d)
The First Period—Section A(1a－2d)
Teaching Important Points 【教学重点】
Key words & phrases：
litter，bottom，fisherman，coal，ugly，advantage，cost，wooden，plastic
noise pollution，air pollution，water pollution，be full of，play a part in，turn…into，cut down air pollution
Key sentences：
1.Even the bottom of the river was full of rubbish.
2.It used to be so clean.
3.Everyone in this town should play a part in cleaning it up.
4.The air is badly polluted because there are more cars on the road these days.
5.The air has become really polluted around here.
6.We're trying to save the earth.
Key structure：
should＋do；used to＋do；have/has＋done；be＋done；be＋doing
e．g.Everyone should help to clean up the river.
The air has become really polluted.
I used to be able to see stars in the sky.
The air is badly polluted.
Teaching Difficult Points 【教学难点】
★Practice the structures to talk about pollution and environmental protection.
Teaching Aids 【教学工具】
A tape recorder，CAI or multimedia courseware.
Teaching Steps 【教学过程】
★Step 1 Leading in 【新课导入】
1．Greeting
2．Discussion and review
Discuss with the students，like this：
T：What kinds of pollution are there these days?
S：…
T：What causes the pollution?
S：…
3．Review the words and expressions about the topic.
★Step 2 Cooperative inquiry 【合作探究】
1．Finish the task in 1a
①Show pictures or play videos about pollution and talk about the pollution.
②Read these phrases in 1a.Look at the pictures in 1a and say what they see in the pictures.Write down the words and add more words.
③Ask students to say out their words in each kind of pollution.
