"主藏血"的脏是（） A.心 B.肺 C.肝 D.肾 E.脾

初二（4）班某同学在调查自习课教室内的噪声情况时记录如下：

时间：11年9月20日  17：10，地点：初二（4）教室

（a）大多数同学在做课外作业

（b）小明等几位同学在收听手机播放的音乐

（c）小丽在看课外书籍

（d）小亮用铅笔头敲打着桌面

（e）小华等几位同学在大声争论着问题

（1）根据该记录，对于小明同学而言，噪声有______．对于大多数同学而言噪声有______．（以上两空格填字母符号）

（2）以该同学的记录为背景，请你对控制教室内噪声提出建议或方案（不少于二条）______、______．

为便于反映客货运输生产量的数值，将客运周转量换算成货运周转量，（）等于1t•km。

A、5人•km

B、10人•km

C、15人•km

D、20人•km

阅读理解

     Nowadays everybody seems to think that they know English. Many people speak it but few speak it

really well. Practice is necessary in speaking English well.

      Reading is also one of the things that will help you to speak English better. Read whenever you can

and whatever you like! Read papers and Internet sites that you like in English every day. Then, you will

see that the number of known words is increasing and you are able to speak with more skills. Then you

will have made the foundations (基础) and a good basis of English. It is not good to stop and get stuck

there.

     Going to England or an English - speaking country is a good choice, but many people cannot afford it.

If you cannot go, reading and speaking with your friends will also help you to practice your English.

However, I think it is very good to visit some English - speaking country to see and test you knowledge

in everyday life. You will understand the everyday usage of the language in its natural environment. There

your level of English is going to improve even faster. You ability to speak English is better. Nothing can

match the excitement and happiness when a native speaker tells you that your English is very good!

     Finally, in order to speak English well, you must be persistent (坚持的) and do it every day. It is like

playing the piano. Pianists play it every day and so should you. Include English in your life and you will

see where it is going. Practice, practice! Read, write and improve your language skills and you are on

you way when you will be able to speak it with more and more confidence!

1. Which of the following would be the best title for the passage?

A. How to Improve Your Language Skills

B. How to Speak English Well

C. Speaking English

D. Practice, Practice!

2. What does the writer suggest about reading?

A. Trying to improve your vocabulary.

B. Keeping on reading when you have time.

C. Stopping when you have a good basis of English.

D. Looking up every unknown word when reading.

3. In the writer's eyes, the essential way to improve your speaking skills is _______.

A. practicing

B. going abroad

C. reading

D. writing

4. The main idea of the last paragraph is that ________.

A. we should play the piano every day

B. speaking English is fun and entertaining

C. we should practice English every day to improve our speaking skills

D. if we've learned to read and write, we'll certainly be able to speak

5. According to the passage, what may make the author excited?

A. Reading papers and Internet sites.

B. Having a good basis of English.

C. Going to an English - speaking country.

D. A native speaker's praise.

夹具是一种装夹工件的（）

A.检测装备

B.工艺设备

C.安全设施

D.机床本体

消防给水管道应保持充水状态。地下独立的消防给水管道应埋设在冰冻线以下，管顶距冰冻线不应小于（）mm。

A、50

B、100

C、150