1. The chemical factory p__________ terrible gas every day.
2. If you b__________ some fresh air, you will feel better.
3. Don't d__________ me now. I'm doing my homework.
4. As we know, n___________ of us likes pollution.
5. You shouldn't throw r___________ here and there.
6. We should do everything we can to protect the e___________.
7. Everyone is s__________ to do something useful.
8. Trees can p__________ the sand from moving towards the rich land.
9. You'd better take a taxi i__________ of walking there. Because it's a long way.
10. We really need to collect w__________ paper and soft drink cans.

     Mrs. Tan was worried about her weight (重量)."I'm much too fat," she told her friend. "I need to lose a
lot of weight but I don't know how to do it."
    "Go and see Dr Wei," her friend said, "He'll tell you how to lose weight." Mrs. Tan visited Dr Wei and
told him her problem.
     "It isn't difficult to lose weight," he told her."All you need to do is to go on a diet (节食). I'll give you
one."He began to write on a piece of paper."Eat lots of fruit and vegetables. Also eat a lot of lean meat
(瘦肉) and grains (谷物)."
      When he finished, he handed her the piece of paper.
     "There you are," he said. "Eat all those things and you'll soon lose weights."
     A few weeks later, Mrs. Tan's friend called on her. She was surprised to see that she was even fatter
than before and that she was eating a large sandwich with chocolate cake and ice cream.
     "I thought you were on a diet," she said, "Oh, I am," Mrs. Tan answered. "I've already had all the food
on my diet today. Now I'm eating my dinner."

1. Mrs. Tan didn't know ________.

A. where her doctor was
B. what she could do
C. how she could lose weight
D. who could help her

2. Mrs. Tan wanted to lose weight because she had too much ________.

A. fat
B. weight
C. food
D. time

3. When Mrs. Tan visited Doctor Wei, he told her ________.

A. she must lose weight
B. she was too fat
C. what to buy
D. what to do

4. Mrs. Tan got even fatter because she ate ________.

A. fruits and vegetables
B. cakes and ice cream
C. lean meat
D. a lot of grains

5. From last sentence we know Mrs. Tan ________.

A. didn't understand the doctor at all
B. understood the doctor very well
C. didn't like the diet
D. loved to go on a diet

1.—What are you doing now?
   —I'm babysitting my sister.     

A. looking after    
B. playing with    
C. looking at    
D. looking for

2. I'm visiting my grandparents in the countryside. 

A. gomg to see    
B. seeing    
C. sightseeing    
D. meeting

3. Well, enjoy yourself in your Vacation.     

A. have a rest        
B. have a good meal
C. have a hard time    
D. have a good time

4. What's the weather like in Italy?    

A.What's the weather            
B. How is the weather
C. What do vou think the weather    
D. How does the weather

5. What about going to the movies?      

A. Let's        
B. Would like
C. How about   
D. Shall we