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问题 选择题

下列有关说法正确的是（   ）

A．熔融氢氧化钠能导电是由于熔融状态下氢氧化钠电离成Na+、O2-和H+

B．硫酸氢铵的电离方程式为NH4HSO4=NH4++H++SO42-

C．盐酸溶液能导电是由于热熔化条件下，氯化氢电离成H+和Cl-

D．电离时生成的阳离子全部是H＋的化合物一定是酸

答案

答案：B

氢氧化钠固体中含有Na+和OH-，故电离时应电离出Na+和OH-，所以A项错误；盐酸溶液中HCl在水的作用下的电离，故C项错误；H2O也是电离时生成的阳离子全部是H＋的化合物，故D项错误。

默写题

根据提示，用作品原句填空。（6分）

⑴子曰：“学而不思则罔，            。”（《<论语>十则》）

⑵            ，松柏有本性。（刘桢《赠从弟》）

⑶池上碧苔三四点，             。（晏殊《破阵子》）

⑷李白在《行路难（其一）》中表现出坚定的理想和信念及乐观情怀的诗句是：       

             ，              。

⑸由岳阳楼名联“四面湖山收眼底，万家忧乐到心头”，你一定能想到范仲淹《岳阳楼记》中的千古名句：              ，              。

⑹《鱼我所欲也》一文中体现作者舍生取义生死观的名句是：              ，

              。
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单项选择题

There are many kinds of friends. Some are always (1) you, but don’t understand you. Some say only a few words to you, but understand you. Many people will step in your life, but only (2) friends leave footprints.
I shall always recall the autumn and the girl with the (3) . She will always bring back the friendship between us. I know she will always be my best friend.
It was the golden season. I could see the yellow leaves (4) with the cool (5) . In such a season, I liked walking alone on the roads covered with leaves, (6) to the sound of them.
Autumn is a (7) season and life is uninteresting. The free days always get me (8) . But one day, the sound of a violin (9) into my ears like a stream flowing in the mountains. I was so surprised that I jumped to see what it was. A young girl, standing in the wind, was (10) in playing her violin.
I had (11) seen her before. The music was so nice that I listened quietly. Lost in the music, I didn’t know that I had been (12) there for so long but my existence did not seem to disturb her.
Leaves were still falling. Every day she played the violin at the comer of the building (13) I went downstairs to watch her performance. I was the only listener. The autumn seemed no longer lonely and life became (14) . (15) we didn’t know each other, I thought we were already good friends. I believe she also loved me.
Autumn was nearly over. One day, when I was listening carefully, the sound suddenly (16) . To my astonishment, the girl came over to me.
"You must like music from the violin." she said.
"Yes. And you play very well. Why did you stop’." I asked.
Suddenly, a (17) expression appeared on her face and I could feel something unusual.
"I came here to see my grandmother, but now I must leave. I once played very badly. It was your listening every day that (18) me. " she said.
"In fact, it was your playing (19) gave me a meaningful autumn," I answered, " Let’s be friends. "
The girl smiled, and so did I. I never heard her play again in my life. I no longer went downstairs to listen to her. Only thick leaves were left behind. But I will always remember the fine figure of the girl. She is like a (20) —so short, so bright, like a shooting star giving off so much light that makes the autumn beautiful.

Ⅱ. 完形填空/Close

A．up

B．off

C．down

D．over
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