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根据所给汉语句子完成英语句子，词数不限。
1．Bob没到过上海，是吧？
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2．孩子们正在操场上踢足球。
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3．在大海里游泳使他很兴奋。
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4．宾馆的房间每天都打扫。
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5．我到汽车站的时候Ann在等我。
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6．擅长跳舞的那个男孩将成为一名警察。
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2. 我们永远不会放弃希望。
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3. 昨天的晚会很成功。
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4. 这个男孩在地震中获救了。
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5. 那首歌中让我想起我们的英语老师。
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6. 什么使他与其他的学生不一样呢？
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（1）用铅蓄电池电解甲、乙两电解池中的溶液。已知铅蓄电池的总反应为：Pb（s）＋PbO2（s）＋2H2SO4（aq）
2PbSO4（s）＋2H2O（1）。电解一段时间后，向c极和d极附近分别滴加酚酞试剂，c极附近溶液变红，下列说法正确的是____________（填写序号）
| A．d极为阴极 |
| B．若利用甲池精炼铜，b极应为粗铜 |
| C．放电时铅蓄电池负极的电极反应式为： PbO2（s）＋4H＋（aq）＋  （aq）＋4e－ PbSO4（s）＋2H2O（1） |
| D．若四个电极材料均为石墨，当析出6．4g Cu时，两池中共产生气体3．36L（标准 |
（2）某二元酸H2A在水中的电离方程式是：H2A＝H＋＋HA－；HA－
H＋＋A2－，请回答下列问题：①Na2A溶液显_________（填“酸性”、“中性”或“碱性”），理由是________________
（用离子方程式表示）。
②已知0．1mol·L－1的NaHA溶液的pH＝2，则0．1mol·L－1的H2A溶液中氢离子的物质的量浓度可能是__________0．1lmol·L－1（填“<”、“>”或“＝”），理由是：___________________________.
（3）二甲醚是一种重要的清洁燃料，利用水煤气合成二甲醚的三步反应如下：
①2H2（g）＋CO（g）
CH3OH（g）； △H＝－90．8kJ·mol－1②2CH3OH（g）
CH3OCH3（g）＋H2O（g）； △H＝－23．5kJ·mol－1③CO（g）＋H2O（g）
CO2（g）＋H2（g）；△＝－41．3kJ·mol－1写出水煤气直接合成二甲醚同时生成CO2的热化学反应方程式___________________.
（4）SO2是硫酸生产的重要中间产物，也是空气污染的主要原因之一，其氧化生成SO3的反应为：2SO2（g）＋O2（g）
2SO3（g）。在一定温度下，将0．23 mol SO2和0．11 mol氧气放入容积为l L的密闭容器中发生反应，达到平衡后得到0．12 mol SO3，则反应的平衡常数K＝________。若温度不变，再加入0．50 mol氧气后重新达到平衡，则SO3的体积分数将___________（填“增大”、“不变”或“减小”）。
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下面是四位同学写给编辑Lee的求助信,请将这四封信与问题进行配对.
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A Dear Editor Lee, I am a student from a junior middle school. I am good at all the subjects except English. I can’t remember words well. I am especially weak in speaking and listening. What shall I do? Could you give me some advice? John |
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B Dear Editor, I have a problem! I really don’t know what to say when I meet strangers. I find it hard to talk with others because I’m afraid they might laugh at me. I am not as interesting, clever or funny as my friends. If people start talking to me, they will realize that I am just boring. Please help me. Ann |
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C Dear Editor Lee, I was getting on well with my best friends. But a few days ago, another friend of mine told me that she often said bad words about me. When I heard this, I was very angry. What should I do? Should I stop being her friend or stay with her as usual? Betty |
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D Dear Editor Lee, Recently I have much difficulty in falling asleep. When I go to bed, though I feel very sleepy, I always think a lot and can’t fall asleep. So I always feel very tired in class and sometimes my head hurts badly. Could you give me some advice? Steven |
1.The student finds it difficult to fall asleep.
2.The student doesn’t know what to say to strangers.
3.The student doesn’t know how to learn English well.
4.The student doesn’t know if she should still stay with her best friend.
5.请写出你的一个烦恼：________________________________________
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I get up at 6:00 o’clock. Then I wash face. I cook food for myself at 6:30. I have hamburgers and milk for breakfast. At 7:30, I watch TV news. I like flowers and grass very much. I water them at 8:00. After that, I read books.
| A．study | B．dining room. | C．bedroom | D．garden |
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