必修三模塊四 Sandstorms in Asia學案

ss: in canteen many students use plastic bags to hold their meal and throw them away then. i think we should not use them first and set a modal.
ss: like refrigerator, more and more cars have come into families. they give out much chemical smoke, especially in cities. it is bad for our health.
ss: cutting more trees will not only cause sandstorms but also enlarge the sand area.
t: well done, boys and girls. since we have known so many things are bad for the environment, what should we do to protect our environment?
ss: we should plant more trees to fresh our air.
ss: we should throw the rubbish into the dustbin and not throw them anywhere.
ss: i think the most important thing we should do is to organize an organization to make people around us know the importance to protect the environment.
t: ok, what you talk about is very helpful. please prepare it after class if you want. if you need help, please let me know. this class we have learnt something about sandstorms, and have discussed things that pollute the environment. since the pollution is so serious, we should try our best to protect our environment. now what you should do after class is to turn your idea into practice.
period 3 intensive reading(reading and vocabulary)
step 1 pre-reading
t: now i will give you five minutes and read the whole passage quickly, find the answers to the questions on the top of this page.
1. there is a terrible sandstorm.
2. she wears a mask, scarf, and heavy clothes. because there is a strong sandstorm.
3. traffic moves very slowly because the thick dust makes it difficult to see.
4. the expert advises people not to go out.
after 5 minutes, check the answers.
t: now, who’d like to talk about the first question? volunteer!
s1: i’d like to try. from picture i know that a sandstorm happens. it is frightening.
t: quite right. next question? who want to have a try?
s2: there is a woman pulling a bike in a frightening sandstorm. the cyclist wears a mask and a pair of gloves. she wears a hat.
t: thank you, very well. how about next question?
s3: the traffic will be very slow, because in the sandstorm there is much sand in the sky. the driver cannot see thing clearly.
t: quite right. the last one, who got the answer?
s4: i think the experts advise people to stay at home and not go out. while going out, you should wear a mask.
t: thank you. sit down please. now, after we’ve learnt this text, we will know how to protect ourselves, if there is a sandstorm in our city. of course, we do not hope it happens in our city.