7. What does the woman think of the player?

　A. She thinks the sound great.　　 B. She thinks the functions great　 C. She thinks the style great.

6. How long can the battery last?

　A. 20 hours　　　 B. 10 hours　　　 C. 5 hours

5. Which of the following is true?

　A. John is as healthy as before　　　 B. John is weaker than before　　 C. John is as strong as a horse

第二节

(1)

4. What do the two speakers complain about?

　A. The weather　　 B. The weather report　　 C. The picnic

3. Why didn’t the man go to the Forest Park?

　A. Because he didn’t like the park.　　 B. Because he had to help his brother study.

　C. Because he had to look after his brother.

2. Which bus goes to the shopping center?

　A. No. 10　　　　　 B. No. 17　　　　 C. No. 15

1. What is the man doing?

　A. Inviting the woman to dinner.　 B. Inviting the woman to a cinema　 C. Cooking supper

4.MgCl₂溶液中混有FeCl₃溶液，不论加Mg、MgO、还是MgCO₃，均可除去Fe³⁺，为什么？

[作业]　 P89:2、3、4

3.不纯的KNO₃溶液中若含有Fe³⁺，可用加热的方法除去所含的Fe³⁺，为什么？

2.将FeCl₃溶液蒸发浓缩，冷却结晶，灼烧，结果得到的是Fe₂O₃；