9.　 Why didn’t the man’s wife go to the concert?

　　 A. Because she was ill that night.　 B. Because she had to look after their daughter.

　　 C. Because she wasn’t free that evening.

8.　　　 How do they think about the piano playing?

A.　　　 They didn’t like it at all.　 B. They don’t think it a good program.

C.　　　 They think it a wonderful program.

7.　　　 Where did the two speakers go yesterday evening?

A.　　　 They went to the theatre. B. They went to the cinema. C.They went to the hospital.

6.　 What did the woman suggest?

　 A. She suggested the man ask his teachers to borrower the books.

　 B. She suggested the man read the books there.　 C. She suggested the man copy the book.

5.　　　 How many books did the man finally take away?

A. Four.　　　　　　　 B.Three.　　　　　　　　　 C. One.

4.　 What is the boy doing?

A. Watching TV.　　　　 B.Listening to music.　　　　 C.Watching the video

3.　　　 When does the coversation take place?

A. In the morning.　　　 B. In the afternoon.　　　　 C. In the evening.

2.　 Where are the two speakers?

　 A. At a garage.　　　　　 B. At a bus shop.　　　　　 C. At a restaurant.

1.　　　 Why is the woman late?

A. She missed the bus.　　 B. She couldn’t start her car.　 C. She couldn’t find the key.

33．某同学将实验材料用相关试剂进行顺序处理，制成临时装片，放在显微镜下观察。回答下列问题：

(1)A组实验中50%酒精的作用是______________；B组实验中的X染液是_____________。

(2)在C组实验中，显微镜下看不到质壁分离现象，最可能的原因是________________。怎样才能观察到质壁分离复现象？_______________。

(3)在D组实验中，无法辨别细胞所处的分裂时期，原因是　　　　　　　　　　　　　　　　　 。