一个物体从内壁粗糙的半球形碗边下滑，在下滑的过程中由于受摩擦力的作用物体的速率恰

请选出下列句子没有语病的一项（2分）                 （   ）

A．目前，各地中小学、幼儿园建立并完善了校园安全管理工作机制。

B．通过举办2010年上海“世博会”，使全世界的目光都聚焦到了飞速发展中的中国。

C．窗外的暴风雨突然渐渐地停下来。

D．膳食营养搭配是否合理，是身体健康的基本保证。

下列关于消防电梯设置要求的说法错误的是（）。

A．消防电梯应分别设置在不同防火分区内，且每个防火分区不应少于l台 

B．消防电梯应设置前室或与防烟楼梯间合用的前室 

C．消防电梯井、机房与相邻电梯井、机房之间应设置耐火极限不低于2．O0h的防火隔墙 

D．电梯轿厢的内部装修应采用难燃材料

患者男，56岁。有多年的糖尿病和高血压病史。受慢性病的困扰，患者常感觉疲乏无力．总担心自己的病治不好了，花了家里很多的钱。近几个月来，患者情绪很差，食欲不佳，没胃口，高兴不起来，晚上睡眠差，他觉得自己拖累了整个家庭。1天前，患者服用了大量的安眠药企图自杀，后被家属发现送往医院。

以下不是高自杀危险性预测指标的是（）

A.通过各种途径流露出消极、悲观的情绪，表达过自杀意愿者

B.近期遭受了难以弥补的严重丧失性事件

C.家属对其过分关爱体贴者

D.慢性难治性躯体疾病患者突然不愿接受医疗干预者

E.近期内有过自伤或自杀未遂行动者

阅读下面的短文，并根据短文后的要求答题（请注意问题后的字数要求）。

     [1] The word addiction usually makes you think of alcohol or drugs, but in modern-day society we are

seeing some new kinds of addictions. Some people are compulsive (难以自制的) shoppers. Others find it

impossible to pull themselves away from their work. Still others spend countless hours watching TV or

playing computer games.

     [2] Over the years, shopping has become a very common activity. Many people enjoy going to malls or

stores more and more every day, but it's more than a common hobby for some of them. They have turned

into shopaholics. They are people who simply enjoy shopping and walking around spending money without

being able to stop doing it. They are hooked on shopping and usually buy things that they don't need. Even

though they don't have enough money, they buy everything they want.

     [3] The question is: why do they have this addiction? There isn't a specific answer. Some people go

shopping when they are sad, worried, upset or lonely and they want to feel better. They use this activity as

a way to forget their problems. Shopaholics say that they feel more important and better after they buy

something. They also tend to have this addiction when they feel guilty.

     [4] Shopaholism seems to be a harmless addiction, but it car. _____. Some of them can be psychological.

If this is the case, people addicted to shopping should go to a support group to help them break this habit.

However, the process, like for most addictions, is long, and they suffer a lot. It can also cause financial

problems. They just think about satisfying their feelings, so they spend money they don't have to. They get

deep in debt, and they can even go bankrupt and get sent to prison.

1. List three activities that might develop into addictions based on the text. (Please answer within 8 words.)

    _____________________________________________________________________________________

2. What's the main idea of Paragraph 3? (Please answer within 8 words.) 

    _____________________________________________________________________________________

3. Fill in the blank in paragraph 4 with proper words. (Please answer within 6 words.) 

    _____________________________________________________________________________________

4. Which sentence in the text is the closest in meaning to the following one?

     Accordingly, these shopaholics should turn to a certain organization for help so that they can stop

     compulsive shopping.

    _____________________________________________________________________________________

5. Translate the underlined sentence in Paragraph 2 into Chinese. 

    _____________________________________________________________________________________

结合材料，回答问题：

材料1

天花又称“痘”，曾是一种极为可怕的传染病。染上此病的人绝大多数会死去，即使侥幸不死，也会在脸上留下点点瘢痕。那时，人们对天花的恐惧，大大超过今人对艾滋病的恐惧。在天花面前的束手无策，导致了人们对痘神娘娘的顶礼膜拜，祈求这位娘娘不要把天花降临到自己身上。天花愈是肆虐，痘神娘娘的香火便愈是旺盛。
18世纪时，英国医生琴纳发现，天花对于挤牛奶的人特别“宽厚”，总是躲着他们。这是为什么呢经过调查研究，终于揭开了秘密。原来，几乎所有的奶牛都出过天花，不过它们抵抗得了。挤奶人一旦接触奶牛 * * 上的脓浆，便感染上了轻微的牛痘，产生了能够抵抗人痘即天花的抗体，形成了免疫力。后来，琴纳发明了种牛痘的方法，挽救了无数人的生命。直到20世纪70年代，天花在全世界范围内基本消灭。天花成为历史的陈迹，痘神娘娘也就无影无踪了。显然，如果没有牛痘疫苗，没有人类对天花的征服，痘神娘娘至今仍会享受着人间的烟火。

材料2

2003年上半年，一种名叫SARS的传染病在我国部分地区及东南亚等地流行。此病高传染率、高死亡率，现代医学尚未研制出疫苗，还不能彻底征服它。于是，有些地方出现了一些迷信活动：有人敲锣打鼓放鞭炮，据说此举可以驱逐疫魔；有人相信深更半夜喝绿豆汤、吃鸡蛋可以有效地防治SARS，据说这是一个出生不久的婴孩儿口述的神的旨意，还有人说这是一个哑巴突然开口说话表达的神的旨意，当事人说完这番话后立即死去；一些法轮功信徒也蛊惑人心，说这是上苍对人类的惩罚……这些迷信的观点本来是十分荒谬的，居然有人深信不疑。
请回答：

根据材料1、2，运用辩证唯物主义认识论的有关原理，说明人类应如何征服瘟疫这一自然力，说明医学发展的动力是什么。