下列关于止血药主要的药理作用环节的叙述，错误的是（） A.收缩局部小血管 B.促进凝

阅读理解.

    You, of course, know that you will never add vcry rapidly to your vocabulary by merely coming  across

 words, or by reading or by  talking. You must have a plan.

    Here is one way to get ahead with words in everyday  life.  It's the simplest thing in the world.

    Buy a small pocket notebook. When you read a newspaper, a magazine, or a book, or listen to TV or

 radio, and come upon a strange word, enter it in your notebook. Then look it up in the dictionary. If you

find that it's a word too difficult to understand or a highly technical mterm, just pass it by.  But if it sounds

like a word that will be helpful to you. take possession of it, make it your own personal possession.  Say

it aloud many times. Study its exact meaning, and note its root. Be sure, also, to copy from the dictionary

the example sentence in which it is used, if such is given.  Then write your own sentence in line with the

example in the dictionary. 

1. This passage is mainly about_________.

A. adding vocabulary by keeping notes

B. a rapid way to add vocabulary

C. a simplest wav to add daily vocabulary

D. a plan to add technical vocabulary

2. According to the passage, when you come across a new word, _____________.         

A. you just forget it

B.you must look it up in the dictionary and possess it if it will be useful

C. just enter it in your notebook and remember it

D. first look it up, then only the one which is helpful needs to be possessed

3. In the passage the phrase "in line with" in the third paragraph means "_________".           

A. according to            

B. beside

C. under the line of          

D. between the line of

4. From this passage it can be inferred that the most effective way to add vocabulary is ___.       

A. to look up any word you meet

B. to list useful words in your notebook

C. to keep on practicing helpful words in your notebook every day

D. to write down example sentences from the dictionary

有KCl、NaCl、Na₂CO₃的混合物，其中钠元素的质量分数为31.5%，氯元素的质量分数为27.08%，则Na₂CO₃的质量分数为（  ）

A．38%

B．50%

C．75%

D．80%

马拉着重10⁴N的车在水平公路上匀速前进，30min内前进了5km，车受到的阻力是 180N，则车重力做功是______，马在此过程中做的功率是______．

读写任务

        阅读下面短文，然后按照要求写一篇150词左右的英语短文。

        According to a report from the Entertainment Software Association (ESA), the sale of computer

games in the United States of America has more than doubled in the past 10 years, from $2.6 billion to

$7 billion in 2005. Analysts (分析家) say that these numbers are very alarming and many people are

asking, “Can gaming become an addiction?” Elizabeth Woolly said, “Computer games, like any other

activity, can be hard to stop once an addiction has been formed.”

        Many students are addicted to computer games and they even forget eating and bathing. They don’t

go to school, playing games for hours of days. It is said that last year, seven people in South Korea died as

a result of too much gaming. 

       “We have kids who don’t know how to communicate with people face to face because they have

spent three years playing games and talking to others through a computer. Eventually computer games have

spoiled their eyes,” said a father.

        [写作内容]

        1.用大约30个词概括短文的内容要点。

        2.用120个词就“中学生该不该玩电脑游戏”这个主题发表你的看法，至少包括以下要

点：

        1）你认为中学生该不该玩电脑游戏。

        2）说明你的理由。

        [写作要求]

        你可以使用实例或其它论述方法支持你的论点，也可以参照阅读材料的内容，但不得直

接引用原文中的句子。

        [评分标准]    概括准确，语言规范，内容合适，篇章连贯

铁路区间施工防护员的职责之一是：在任何情况下，如施工地点的停车防护信号尚未撤除或待避工作尚未做好而列车临近时，防护员应立即向列车显示（），使列车停车。

A.减速信号

B.慢行信号

C.停车手信号

D.黄色信号旗