阅读理解。

    Have you ever heard of the language Esperanto (世界语)? This is a man-made language for world use.

But it hasn't been known by most of people around the world, let alone (更不必说) worldwide use. There

are more than 3,000 languages in the world today,but only about ten are major (主要的) languages. Among

them English is the most popular one in the world.        

    More than 350 million people speak English as their first language. Major English-speaking countries

are Britain, Australia, New Zealand, Canada and the USA. Another 400 million speak it as a second

language. No one knows how many people speak English as a foreign language. They usually learn English

as a school subject instead of learning it from their parents. Chinese is the only language with more speakers

than English. This is because of the large population of China.

     English is the language for a better understanding between peoples of the world. It is also the language

for business and science. Nearly half of the business deals in Europe are done in English, and more than

half of the science magazines are in English. English is widely used in the world's computer network.

And children should begin with English when they learn how to use computers. Through the English language

peoples of different countries are able to work together and make things even better.

1. Esperanto hasn't been widely used because _______.

A. not many people know it

B. it is very difficult to learn

C. people don't like it at all

D. it's a bad language

2. Most Chinese people learn English _______.

A. as the first language

B. as the second language

C. as a foreign language

D. from their parents

3. Which of the following language is spoken by the largest number of people in the world?

A. English.

B. Chinese.

C. Japanese.

D. Esperanto.

4. Which of the following is true?

A. If you know English, you will be able to use computers.

B. Scientists from different countries can only speak English at the international (国际的) meetings.

C. English is the only language used in the world's computer network.

D. English is more widely used than any other languages.

5. The passage is about _______.

A. the difference between Esperanto and English

B. the major languages in the world

C. the importance (重要性) of English

D. the use of foreign language

(11分)右图为常用笔记本电脑所用甲醇质子交换膜燃料电池的结构示意图。电池总反应为2CH₃OH＋3O₂2CO₂＋4H₂O。（已知甲醇的标准燃烧热为-725.76kJ ·mol^-1）

（1）该装置中    （填a或b）为电池的负极，其电极反应为                           。

（2）已知任何反应都具有一定的可逆性。该甲醇质子交换膜燃料电池在实际工作中，各反应物、生成物均以气态的形式存在且反应也具有一定可逆性，即其反应原理可表示为2CH₃OH（g）＋3O₂（g） 2CO₂（g）＋4H₂O（g），试写出该条件下反应的平衡常数表达式K=               ； 在电脑的使用过程中，电池的温度往往因为各种原因会升高，试判断温度升高时该反应的平衡常K将          （填增大、减小、不变），其反应的正反应速率将       （填增大、减小、不变）；逆反应速率将         （填增大、减小、不变）；温度升高      （填有利或不利于）电池将化学能转化为电能。

（3）又已知在该条件下H₂O（l）=H₂O（g）ΔH=+akJ·mol^-1；CH₃OH(l)= CH₃OH(g) ΔH=+b kJ·mol^-1。若常温下一定量的甲醇完全燃烧生成液态水释放出了1451.52 kJ的能量，则等质量的甲醇利用图示装置理论上可提供           mol电子的电量。