简述积冰与云中温度、湿度的关系。

I was in a strange city and I didn't know the city at all and what is more，I could not speak a word of the language. After having spent my first day in the town-centre，I decided to lose my way on my second day, since I believed that this was the simplest way of getting to know the strange city.

I got on the first bus that passed, rode on it for several stops then got it off and walked on. The first two hours passed pleasantly enough. Then I decided to turn back to my hotel for lunch. After walking about for some time, I decided I had better ask the way. The trouble was that the only word I knew of the language was the name of the street in which I lived and even then I pronounced it badly.

I stopped to ask a friendly-looking newspaper-seller. He smiled and handed me a paper. I shook my head and repeated the name of the street and he put the paper into my hands. I had to give him some money and went on my way. The next person I asked was a policeman. The policeman listened to me carefully, smiled and gently took me by the arm. There was a strange look in his eyes as he pointed left and right and left again. I thanked him politely and began walking in the direction he pointed.

About an hour passed and I noticed that the houses were getting fewer and fewer and green fields were appearing on either side of me. I had come all the way into the countryside.

The only thing left for me to do was to find the nearest railway station,

小题1:The writer believed that if you wanted to get to know a strange city         .

A．you should go everywhere on foot

B．you should have a map

C．you should ask people the way

D．you should get lost小题2:The newspaper-seller ________

A．could understand what he said

B．didn't know what he said

C．laughed at him

D．didn't want to take the money小题3:The writer's real trouble was that            .

A．he couldn't speak the language

B．he followed the policeman's direction

C．he took the wrong bus

D．he left the town-centre小题4:The policeman        .

A．didn't help him

B．pointed at him

C．didn't understand what he really meant

D．didn’t know the way

阅读下面短文，回答问题。

　　有时，动物界也会发生令人难以置信的故事。

　　有一个狩猎队，把一群羚羊赶到悬崖边，准备全部活捉。约摸半小时后，羚羊群分成了两类：老羚羊为一类，年轻羚羊为一类。一只老羚羊走出来，朝年轻羚羊群叫了一声。一只年轻羚羊应声跟老羚羊走到悬崖边。年轻羚羊后退了几步，突然朝前奔向悬崖对面；紧接着，老羚羊也飞跃出去，只是跃起的高度要低一些。当年轻羚羊在空中向下坠时，奇迹出现了：老羚羊的身子刚好出现在年轻羚羊的蹄下，年轻羚羊在老羚羊的背上猛蹬一下，下坠的身子又突然升高，并轻巧地落在对面的悬崖上，而老羚羊就像一只断翅的鸟，笔直地坠入了山涧。

　　试跳成功，紧接着，一对对羚羊凌空腾起。没有拥挤，没有争夺，秩序井然，快速飞跃。顿时，山涧上空划出了一道道令人眼花缭乱的弧线，那弧线是一座以老羚羊的死亡作桥礅的生命桥。那情景是何等神圣！猎人们个个惊得目瞪口呆，不由自主地放下了猎枪。

　　动物在生命危急之时的举动，令人肃然起敬。它留给人类的思考是什么呢？

　　“当地球上最后一只老虎在林中徒劳地寻求配偶时，当最末一只未留后代的雄鹰从高空坠向大地时，当鳄鱼的最后一声哀鸣不再在湖泽上空回荡时……人类，从某种意义上也已看到了自己的结局。”这是人类对动物的哀怜，更是动物对人类的警示。

　　人类只有一个地球，人和动物都是大地之子。本是同根生，相煎何太急？保护野生动物，就是保护人类自己；善待生灵，也就是善待我们自己。

1、解释词语：

肃然起敬：________________________________

2、“本是同根生，相煎何太急”是时写的诗句，引用这两句诗的效果是___________。

3、第一段中所说的“令人难以置信的故事”是指（用自己的话概括，不超过20字）。

__________________________________________

4、“猎人们不由自主地放下了猎枪”的原因是__________________________________________

5、能揭示全文主旨的语句是；这一句运用了的表达方式是________________________________

6、请以“爱护动物”为主题拟一条标语。

__________________________________________

影响文献老化的因素有（）。

A、文献的增长速度

B、学科差异

C、学科发展阶段的差异

D、文献的种类和性质

在FIM评定中，需要大量帮助，自己仅能起到25％～50％的作用，得分为（）

A.1分

B.2分

C.3分

D.4分

E.5分

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