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问题 选择题

．如图所示为寒冬出现的四个现象，其中属于升华的是（　　）

答案

答案：B

：A、冬天，口中呼出的“白气”，是水蒸气遇冷液化成的小液滴；故A错误；

B、冰冻的衣服晾干，是固态的冰直接升华为水蒸气；故B正确；

C、玻璃窗上有的“冰花”，是固体的小冰晶，是由室内温度较高的水蒸气遇到温度较低的玻璃，发生了凝华现象，凝结在玻璃的内表面；故C错误；

D、河面上的冰块，是河水凝固形成的；故D错误；

故选B

阅读理解

选项A－E是下面文章各个段落( 65-68 )的标题，请替下面文章的每个段落找到合适的标题，其中有一个标题是多余的。本节有4小题，每小题1分，共4分。

A. Impoliteness in using electronic communication devices

B. The objection to the use of some devices

C. The annoying noise from the classroom

D. A fact of modern life

E. Disturbance by someone’s screams in public places

小题1:            

It’s something that most of us find annoying. We’re on our way home after a hard day at school and trying to have a quiet chat with a classmate or get in a little reading, when our peace is disturbed by someone screaming into their cell phone: “I’M ON THE BUS !”

小题2:          

A survey published last week suggests Americans do not like the impolite use of today’s electronic communication gadgets. Besides noisy phone users, sending and receiving e-mails while in company are also as very poor manners, reports MSNBC.com.

小题3:         _

One of the practices that participants in the survey most objected to was the use of phones, iPods and other devices during religious festivals. Some 90 per cent of those surveyed thought this was insensitive and disrespectful.

小题4:        ___

The survey does suggest, according to MSNBC, that most Americans accepted that the technologies are a fact of modern life. They had nothing against the use of laptops and cell phones in bathrooms. And an electronic thank-you note was just as acceptable as a handwritten one.
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多项选择题

湿热淋痛宜选（）

A.黄芩

B.黄柏

C.地骨皮

D.败酱草

E.苦参
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