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问题 问答题

“城市尚余三伏热，秋光先到野人家”，这句诗说明在陆游生活的那个时代，人们就已觉察到城市暖于效区，请同学们分析现代城市“热岛效应”的主要原因：

一是工厂、交通工具排放出大量的______．

二是建马路上的砂石______小，在相同光照下温度升高明显．

三是城市水面少，水______少．

四是楼群林立，难以形成对抗．

答案

引起热岛效应的原因有：工厂、交通工具等排放大量的废气，给空气带来大量的热；城市建筑材料的沙石的比热容较小，在相同的日照下（吸收相同的热量）温度上升较快；城市水少，水蒸发时吸收热量少；建筑物较高，空气难以形成对流．

故答案为：废气，比热容，蒸发．

选择题

20年前，手机称“大哥大”，买一部要花2万多元，相当于当时一个普通工薪者20年的收入。最近，小王只用300多元便买了一部，仅相当于一个普通工薪者一周的收入。手机价格降低的根本原因是：[ ]

A．厂家数量增多使产品供应量增大          

B．商家采用了薄利多销的销售策略

C．科技进步增加了商品的技术含量         

D．劳动生产率提高使单位价值量减少
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阅读理解

I will be the first to say that I am not materialistic. My friends regard me as a goody-goody; my parents say I am conservative and modest when it comes to clothes. None of my skirts or shorts end above my knees.

So why, why did I feel so invited? My family and I were in Target, and there it was, waiting. A skirt, specifically designed not to cover anything. It looked like something that one of those modern schoolgirls would wear.

I checked my purse. The skirt cost $10. I had the money. I could buy it. I imagined walking into school and my friends’ jaws (下巴) dropping. Guys would ask me out, and I would be happy. I could buy it, no, — I should buy it.

I showed my mother. She was surprised but said it was my decision. My sister looked on enviously.

I went into the dressing room to try it on. So sure was I that this skirt would change me, somehow make me not what I am but what I wished to be. I slid my jeans off and put it on. I looked in the mirror. There I was — a terrible girl in a Superman T-shirt and sneakers. My glasses fogged up as I started to cry.

The skirt did not change me. Though it fit well and might make me look good in the eyes of today’s world, it was not me. I am not a girl who wears cool clothes to fit in.

I took the thing off and slid back into the ­comfort of modesty. My mom knocked on the door. “Emily, are you okay?”

I wiped away my tears. “I’m fine.” I looked in the ­mirror again and saw a slim girl with funny ­glasses. I saw myself.

小题1:In the author’s eyes the skirt that interested her was ______.

A．not modern

B．very short

C．too expensive

D．poorly designed小题2:The author thought if she went to school in this skirt her schoolmates would be ______.

A．shocked

B．hurt

C．confused

D．happier小题3:The underlined sentence in the 3rd paragraph indicates the author ______.

A．hesitated about buying the skirt

B．made up her mind to buy the skirt

C．was able to afford to buy the skirt

D．worried about others’ opinion on the skirt小题4:The author cried because ______.

A．she found that she looked ugly in the skirt

B．she was aware the skirt didn’t fit her well

C．she realized it’s a wrong decision to make a change

D．she was disappointed the skirt failed to change her
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