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Module four   Sandstorms in Asia
                   
Ⅰ.Listen to the tape and fill in the blanks using the right forms of the given words.
1. The wind is sometimes strong enough__________(move) sand dunes.
2. _________ (catch) in a sandstorm would be a terrible experience.
3. It is frightening________________(cycle) in a sandstorm.
4. Sandstorms in China appear __________________(increase) in recent years as a result of “desertification”.
5. Sandstorms make it difficult________(see).
6. So experts advise people not to go out in the sandstorms. ____________ (prevent) it coming nearer, the government is planting trees.
Ⅱ. The infinitives.
1. Translate the following sentences and pay attention to the different types of infinitives, then give the summary of them, according to the following form. 
2. 1).The wind is strong enough to move sand dunes.
____________________________________________________________
2).To prevent it from coming nearer, the government is planting trees.
____________________________________________________________
3).It’s frightening to be cycling to work in a sandstorm.
_________________________________________________________
4). To have been caught in a sandstorm was a terrible experience.
____________________________________________________________
5).He is considered to have invented the first computer.
_____________________________________________________________
6). There is nothing to be done.
_____________________________________________________________

 一般式 进行式 完成式
主动   
被动   
2. Choose the best answers.
(1) As the busiest woman in Norton, she made ___ her duty to look after all the other people’s affairs in that town.
  A. this      B. that      C. one     D. it
(2)  A storm is quite likely to come. Let’s hurry so as not to ___.
  A. catch     B. be caught     C. be caught in      D. catch in
(3) There is no time ____. We should make every effort to study well.
   A. losing         B. to lose      C. lost     D. being lost
(4) Do let your mother know all the truth. She appears ___ everything.
  A. to tell       B. to be told     C. to be telling    D. to have been told
(5) --- The light in the office is still on.
   --- Oh, I forgot ______.
A. to be turning it off      B. turn it off   
C. to turn it off           D. to have turned it off
(6). Most houses seems ______ destroyed by the storm when we arrived there.
A. to be   B. to   C. to have been     D. being
(7) We were told not ______ the house at night.
A. to leave   B. leaving   C. to be leaving  D. left
Ⅲ. Rewrite the sentences using infinitive structures.
1. I’m traveling during a sandstorm.
It’s dangerous ______________________________________________
2. Experts hope that they will learn more about the movement of thunderstorms.
Experts hope ________________________________________________
3. The man need to complete the work on the house by the end of the week.
The work on the house needs to ___________________________________
Ⅳ. Complete the sentences using the words from the Sandstorm in Asia. The first letter is provided for you.
1. Weather experts have f______ another big sandstorm in a week’s time.
2. It’s f______ to be outside in a sandstorm.
3. I was in a very big sandstorm some years ago. Luckily. Everyone s______.
4. There is a lot of d______ on the floor. We need to sweep it away.
5. Desertification is a long p______ that takes many years.
6. Many Beijing c______ cycle to work.
Ⅴ. Homework
Write a short passage of the snowstorm that you have seen or heard of in southern China. It’s very good if you can use the correct infinitive forms in the passage.