问题 读图填空题

艾滋病的病原体是              

答案

病毒

题目分析:艾滋病全称为获得性免疫缺陷综合症,是由人类免疫缺陷病毒引起的一种严重威胁人类健康的传染病,主要侵犯并瓦解人体的免疫系统,致使人体免疫功能缺损,不能抵御病原体侵害,而发生感染或肿瘤等,直至全身衰竭、死亡,而不是由细菌引起的,艾滋病病毒主要存在于感染者和病人的血液、精液、 * * 分泌物、乳汁中;因此艾滋病的传播途径主要有:性传播(与已感染的伴侣发生无保护的性行为)、静脉注射吸毒(与他人共用被感染者使用过的、未经消毒的注射工具,是一种非常重要的HIV传播途径)、母婴传播(在怀孕、生产和母乳喂养过程中,感染HIV的母亲可能会传播给胎儿及婴儿)、血液及血制品传播(输入被HIV污染的血液及其血液制品)等。

阅读理解

阅读理解

     Good afternoon, ladies and gentlemen. My topic is "__________".

     Now in the 21st century, advertising is more and more important for people. Why? I think it is because through advertising, people, especially the businessmen, can introduce their products to the people all over the world. Because of this, many companies spend a lot of money on advertising. As we all know, there are many advertisements which are very interesting and popular. For example, Michael Jordan made an interesting advertisement for Nike. From this you can see how the companies make their products known to the world.

     People can make a lot of money through advertising. It is known that many famous singers and movie stars make money in this way. However, I don't think this is a good way for them to make money, because they are not the professional(职业的) advertisers, especially those who advertise in medicine advertisements.

     Nowadays, advertising not only means making the products known, but also means making ourselves known to people around us. Living today, we have to make people believe in us if we want to do important jobs. But how can this be done? We should first let other people know our good side: the good habits and abilities we have. In short, we should always remember to advertise ourselves to others. As I said before, advertising is not only important for companies but also for everyone, for all human beings. This is the most interesting thing about advertising.

1. The best topic to fill in the line in the first paragraph is "__________".

A. The Importance of Advertising

B. Making Money through Advertising

C. Advertising Ourselves

D. Advice on Advertisements

2. This passage may be a(an) __________.

A. advertisement

B. story

C. speech

D. report

3. According to the passage, which of the following is NOT right?

A. Many companies are willing to spend money on advertising.

B. Advertising can make some people rich.

C. People can introduce their products through advertisements.

D. Advertising is not necessary for anyone.

实验题