中国民族工业的特征不包括 [ ] A．比较落后 B．轻工业发展较快 C．主要集中

西藏的发展历史可以概括为：从黑暗走向光明，从专制走向民主，从落后走向进步，从贫穷走向富裕，从封闭走向开放。这说明

A．一切事物变化的总趋势都是上升的

B．事物发展的途径前进性与曲折性的统一

C．量变是质变的准备，质变是量变的结果

D．事物的发展是新事物代替旧事物的过程

阅读理解

     It seems hard to watch someone yawn and not to yawn ourselves. Even reading about yawning can

make you do it. Now, a new study has found why yawning has such a powerful force.

     Yawning when others yawn, the study suggests, is a sign of pity and a form of social connection. Kids

don't develop this deeply rooted behavior until around age four, the study has found. Kids with autism

(自闭症)are half as likely to catch yawns. In the most serious cases, they never do. Yawning might help

doctors to see whether the children are developing rightly. The work could also lead to a better

understanding of the ways that people communicate and connect.

     "Emotional infection seems to be a born thing that connects us together, "said Molly Helt, a graduate

student in psychology at the University of Connecticut. "Yawning may be part of that. "Inspiration for her

study came when she tried to get her own autistic son to clear his ears on an airplane. She repeatedly

yawned at him, hoping he would yawn back. He never did.

     "The fact that autistic kids don't do it might mean they're really missing out on that emotional

connection with people around them, "she said. "The biggest thing people try to figure out after birth is

how we become humans and understand that humans have minds that are different from others'," she

added. "Autistic people never seem to understand that. "

     Like infectious laughter and crying, scientists have found that yawning is a shared experience that

promotes social connection. Helt said it could fight stress after a period of being nervous and spread a

feeling of calm in a group.

1. What does the new study suggest, according to the first two paragraphs?

A. It is impossible to stop yawning when you see others yawn.

B. Yawning has some mysterious force which is related to God.

C. Children follow others in yawning just after they are born.

D. Yawning is a form of communication.

2. According to Molly Helt, ________.

A. emotions are infectious, but yawning is not

B. yawning helps clear ears on planes

C. humans differ from animals because they communicate with others

D. yawning is a kind of emotional connection among humans

3. Which of the following is NOT true about yawning?

A. It is natural to yawn back if people around you yawn.

B. Some kids are too young to yawn after others.

C. Yawning can be used to test children's development.

D. Kids with autism yawn easily when others yawn.

4. According to the author, infectious yawning________.

A. has a positive effect on social relationships

B. is helpful in curing people of autism

C. helps people develop their brain

D. is most useful in group work

5. The author implies in the last paragraph that________.

A. it is bad manners to yawn on some social occasions

B. yawning can make people feel relaxed

C. yawning is different from infectious laughter and crying in theory

D. the more you yawn, the more you will become nervous and stressful

为了尽快完成汶川地震灾区灾后重建任务，援建者与当地群众一起不畏困难，坚持不懈地努力，使灾后恢复重建三年任务两年基本完成，灾区面貌焕然一新。他们之所能够取得这么大的成就主要靠[ ]

A．艰苦奋斗   

B．实践精神

C．改革创新   

D．探索精种

患者，男性，50岁，吸烟30年，饮酒20年，头晕6个月，既往有高血压病史10年。门诊化验血糖升高，血糖：8．1mmol／L。

如果体检，哪个项目没有必要（）。

A.量血压，包括下肢血压

B.心脏听诊

C.脑CT

D.行颈动脉超声检查

E.生化检查，包括血脂、血糖等

中国是世界的一个部分，近代中国经济的发展与世界经济息息相关。

主题一：近代世界经济的发展历程

材料一：……加强了欧洲同亚洲、非洲以及“新发现”的美洲等地的联系，……商人们把亚洲的茶叶、丝绸、瓷器、香料，非洲的黄金、白银、玉米、烟草和欧洲的枪支、工艺品等运送世界各地，大大促进了不同国家和地区间贸易的发展。

材料二：到1900年时，欧洲人从阿根廷和澳大利亚进口牛肉和羊毛，从巴西进口咖啡，从智利进口硝酸盐，从阿尔及利亚进口铁矿石，从爪哇进口蔗糖。欧洲资本同样投向了海外，以建设铁路、矿山、电厂和银行。当然，国外市场也为欧洲的制成品提供了市场。

——杰克逊•斯皮尔伯格《西方文明史》

主题二：近代中国的经济发展

材料三：茶叶在19世纪30年代每年出口5000万磅，1844年增至7000万磅，1851年达9900万磅，几乎增加了一倍。丝的出口，在鸦片战争前一般每年只有几千包，最多不过10010包，1847年增至22000多包。由于丝、茶的大量出口，一些地区的农民纷纷放弃粮食生产转而种桑植茶。

主题三：改革开放以来的中国经济发展

结合茶丝出口变化情况，说明19世纪中期中国在世界市场中的地位。联系所学，说明近代中国社会经济结构发生的变动。