今年4月中旬，青海省玉树县地震灾害之后，需用“84消毒液”12%次氯酸钠（NaC

发布时间：2017-07-28 23:42 │ 来源：www.tikuol.com

题型：问答题

问题：

今年4月中旬，青海省玉树县地震灾害之后，需用“84消毒液”12%次氯酸钠（NaClO）溶液稀释后对场地喷洒消毒．

（1）消毒液工厂生产500kg溶质质量分数为12%次氯酸钠溶液，需取用溶质次氯酸钠 ______kg．

（2）地震灾害现场要配制0.3%的次氯酸钠溶液800kg，需取用12%次氯酸钠溶液 ______kg，加水进行稀释．

考点：关于溶液的计算

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（4分）《生活中的小浪花》是校刊中的一个随感栏目。这些作品是由平常事物而生发情趣，蕴涵丰富，语言精练，深得同学们喜爱。下面是期中两则，请你认真品读，然后仿照它的写法，自选事物，创作一则，并在其后的方括号中写出所蕴涵的道理。

其一：石灰石——别人向你泼冷水，你却更加热气腾腾。【专注事业（学业），坚守热情】

其二：拖拉机——出一丁点力，便大喊大叫。【嘲讽自吹自擂的人】

我的创作：【】。

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阅读理解。

     Mr. Shaw wrote a lot of stories and people in the world knew him well. He didn't like the arrogant
(傲慢的) rich (富有的) men and often laughed at them. So people liked him very much.
     A lot of men hoped to know Mr. Shaw. One day a famous singer asked him to her party. When
Mr. Shaw came in, all the people stood up except a young man. The young man's father was one of
the richest men in England and he was studying in Paris (巴黎). He thought he knew much more than
anyone else in the room. He talked a lot and tried to show he was a know-all (自以为无所不知的人).
All the people listened to him and nobody would interrupt (打断) him. It made Mr. Shaw unhappy.
    "Please listen to me, my friend," Mr. Shaw had to stop him. "I think only we both know the things
in the world!"
    Hearing this, the young man was happy.
     "Maybe you know all," said Mr. Shaw. "But you don't know one thing!"
    "We are all tired of you," Mr. Shaw said with a smile. "Just I know it!"
    The young man's face turned red and didn't say anything until (直到) he left.

1. Mr. Shaw was ______.

[ ]

A. a great singer
B. a famous writer
C. a doctor
D. a famous teacher

2. All the people stood up when Mr. Shaw went in because .

[ ]

A. they all respected (尊敬) him
B. they were all afraid of him
C. the singer made them do so
D. they wouldn't listen to the young man

3. The people at the party wouldn't interrupt the young man because .

[ ]

A. he could tell them something interesting
B. he was studying in the capital of France
C. he was clever than them all
D. they didn't want to make him unhappy

4. At last the young man stopped talking because ______.

[ ]

A. nobody listened
B. he was very tired
C. he knew he was wrong
D. Mr. Shaw's words made him do so

5. Which of the following is not true?

[ ]

A. Mr. Shaw was tired of the young man.
B. The young man thought he learned a lot in Paris.
C. The young man said sorry to Mr. Shaw.
D. The young man knew that Mr. Shaw laughed at him.

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题型：问答题

用括号中所给词的适当形式填空。

1. _____ (Have) breakfast helps you keep fit.

2. I have some _____ (knife). I can lend one to you.

3. He brushes his teeth _____ (two) a day.

4. My _____ (eat) habits are pretty good.

5. You must eat more vegetables and keep _____ (health).

6. There are many _____ (different) between the two books.

7. This movie is very _____ (interest).

8. My mom wants me _____ (drink) milk every day.

9. Daniel usually _____ (have) meat and vegetables for dinner now.

10. How long ____ he _____ (read) English every night?

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活塞压力计上的砝码标的是（）

A.压力

B.重量

C.质量

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一本书静置于水平桌面上，下列说法正确的是（）

A.桌面受到的压力是由桌面形变形成的

B.桌面对书的支持力与书所受的重力大小相等，方向相反

C.桌面受到的压力实际就是书的重力

D.桌面对书的支持力与书对桌面的压力是一对平衡力

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