问题 单项选择题 A型题

濡脉与弱脉的主要区别是()

A.脉位浮与沉

B.脉率快与慢

C.脉形粗与细

D.力度强与弱

E.脉律是否齐整

答案

参考答案:A

填空题

金属是一种重要的材料,人类的生活和生产都离不开金属.钢铁的生产和使用是人类文明和社会进步的一个重要标志,你是否知识全世界每年因生锈损失的钢铁,约占世界年产量的四分之一.

(1)南京长江三桥是世界上第一座弧线形的钢塔斜拉桥,桥身钢结构覆盖氟碳涂料,可以保证50年不生锈,其防锈的原理是(根据生铁条件说明) _________ .

(2)食品生产商为了延长食品保持期,有时候在食品包装袋中放入少量用透气的纸袋装的干燥铁粉,其作用是 _________ .

(3)铝的活动性比铁强,但铝在空气中却表现出良好的抗腐蚀性,其原因是什么? _________ .

(4)铜钱在历史上曾经是一种广泛流通的货币,已知铜的熔点是1083.4℃,铁的熔点是1534.8℃.试从物理性质和化学性质的角度分析,为什么用铜而不用铁来铸造货币? _________ .

(5)人们对资源保护的意识日趋增强,为了节约金属资源,家庭日用器皿应不用或少用金属材料,你认为下列保护金属资源的途径不合理的是 _________ .

①防止金属腐蚀;②回收利用废旧金属;

③禁止生产易造成金属腐蚀的化工产品;④合理有效地开采矿物.

(6)如图1是一氧化碳还原氯化铁的实验装置图,实验开始时,应该先通一会儿一氧化碳,然后再给氯化铁加热的原因是 _________ ,写出硬质玻璃管内发生反应的化学方程式: _________ .最后尾气进行点燃的目的是 _________ .

(7)图2表示了金属活动性顺序表中铜、锡、铁和铝元素被人类大规模开发、利用的大致年限.根据图中数据和有关的化学知识,你认为金属大规模开发、利用的先后顺序跟下列哪些因素有关 _________ .

①地壳中金属元素的含量②属的导电性   ③金属的活动性

④属的延展性   ⑤金属冶炼的难易程度

阅读理解

阅读理解。

     What can help you make a fortune in the future? Graduating from a top university might not be

enough. A new study from the University of Essex in Britain has shown that the more friends you

have in school, the more money you'll earn later.

     The idea that popularity could have a serious impact on one's earning potential shouldn't come

as too much of a surprise. The researchers noted that if you want to get ahead in life, social skills

and networking are easily as powerful as talent and hard work.

     "If a person has lots of friends, it means that he or she has the ability to get along with others in

all kinds of different situations," said Xu Yanchun, 17, from Nantou High School in Shenzhen, who

totally agreed with the recent finding. "Also, friends always help each other. They not only create

wider social circles for you but lift your mood when you occasionally feel depressed," said Xu.

She believed that all this helps you "earn a higher salary".

     Maybe that's why some people think the younger generations are in the age of friendaholism

(交友狂症). A woman even complained that the networking website Facebook's 5,000friend

limit was too low for her large reserve of social contacts.

     But what does a friend mean? Should friends be regarded as a form of currency?

     "Call me uncool, but I think of a friend as an actual person with whom I have an actual history

and whom I enjoy actually seeing. It seems, however, that this is no longer the definition(定义)of

'friend'," said Meghan Daum, who works with The Los Angeles Times in the US.

     Daum despised(鄙视)the idea that quantity trumps(胜过)quality in the age of friendaholism. She

thought the idea of friendship, at least among the growing population of Internet social networkers,

was to get as many of notreallyfriends as possible. For example, a friend might be someone you

might know personally but who could just as easily be the friend of a friend of some other Facebook

friends you don't actually know.

1.What's the main idea of the passage?

A.Making friends is important.

B.Making friends makes you earn more money.

C.Friends give you success.

D.Social skills are important.

2.Which of the following sentences is TRUE?

A.It is surprising that making more money is popular with people.

B.If you want to win in life, social skills are as important as talent and hard work.

C.The young now have friendaholism.

D.Friends do not create your wider social circles but lift your mood when you occasionally feel

depressed.

3.What's the opinion of Xu Yanchun about making friends?

A.Making friends may help you a lot in your life.

B.Making friends can get a lot of money.

C.Making friends can make you work hard.

D.Making friends can improve your ability to work.

4.What's the author's attitude?

A.Objective.  

B.Subjective.

C.Neutral.  

D.Optimistic.