外研版必修3Module4學案
ask students to read it silently
★intensive reading
t: read the whole passage very carefully and complete ex.4&5 on page 33. while reading underline phrases and sentences that you think are important. read it silently and try to get the general idea of this passage. 10 minutes.
1. the winds in a sandstorm can sometimes be strong enough to move sand dunes.
2. when ren jianbo was living in inner mongolia he experienced a terrible sandstorm in desert.
3. sandstorms in china appear to have increased in recent years as a result of “desertification”.
4. cutting down trees and digging up grass can cause the climate changes and make the land become desert.
5. traffic moved very slowly because the thick dust makes it difficult to see.
6. the government is planting trees to the west of beijing to prevent the desert coming near.
(after 10 minutes ask some students to check the answers and show the answers on the screen.)
1. forecasted 2. frightening 3. survived 4. dust 5. process 6. citizens
(after students to give possible answers, then show them on the screen)
1. scientists have tried many ways to solve this problem and in china, a mass campaign has been started to help solve it.
2. you just had to hope you’d survive.
3. sandstorms in china appear to have increased in recent years as a result of “desertification”.
4. this is a process that happens when land becomes desert because of climate changes and because people cut down trees and dig up grass.
5. when a sandstorm arrives in the city, weather experts advise people not to go out.
6. to be cycling in a sandstorm is frightening.
7. already the government has planted more than 30 billion trees and plans to continue planting for the next five years.
(after having finished the exercises, show the important sentences on the screen. ask the students to pay more attention to them.)
step 3 complete the summary of the text:
(1st paragraph)
sandstorms have been a major_______ for many asia countries _____ centuries. scientists have tried many ways to ____ this problem and in china, a ______ campaign has been started to help solve it.
suggested answers:
sandstorms have been a major disaster for many asia countries for centuries. scientists have tried many ways to solve this problem and in china, a mass campaign has been started to help solve it.
(2nd paragraph)
the wind in the sandstorm is often strong enough to move _________. ren jianbo, from _____________ described a terrible sandstorm he ___________ when he was a child. “ to have been ______ in a sandstorm is a ____________. there was nothing ________. it was the most _________ and the most dangerous ________ i have been in. you just had to hope you’d _______.