读短文，根文内容选择答案。

 We are on a train now. There are many people on the train. I see some women talking. They laugh loudly.

My brother Tom is looking out the window. "I see a bird flying," he says. "I can't see. Point to it, Tom." I

say. "There! In the sky, a black bird!" he says. Yes, I see the bird. It's big and beautiful. My mother is

reading a book. My father is sleeping. They are quiet. Now, it's one o'clock. Everyone is hungry. So we

decide to have some fruits.

1. There are many _______ on the train.

A. men            

B. women            

C. people

2. Some women are ________ .

A. talking quietly      

B. talking  loudly      

C. quiet

3. Tom sees a _______ bird.

A. black            

B. brown              

C. blue

4. What is mother doing?

A. Sleeping.                

B. Talking.              

C. Reading.

5. What will we have?

A. Some soup.                

B. Some dumplings.    

C. Some fruits.

用生理盐水直接涂片主要可诊断哪些寄生虫？各能查到哪个阶段？