2 . 假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线(\)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1. 每处错误及其修改均仅限一词；
2. 只允许修改10处，多者(从第11处起)不计分。

Dream is important in our life. It encouraged us to fight for the future. My dream is to be English teacher. I am grateful to all my teacher. They teach me not only knowledge, and also how to adapt themselves to the society. Therefore, I want to be a teacher which is useful to his students. To be a good English teacher, I need to study hardly and learn English well. Then I need to practice my spoken English by communicating with my classmates on English. All in all, I believe my dream will to come true and I will try my better to achieve my dream.

3 . Languages have been coming and going for thousands of years, but in recent times there has been less coming and a lot more going. When the world was still populated by hunter-gatherers, small, tightly knit(联系) groups developed their own patterns of speech independent of each other. Some language experts believe that 10,000 years ago, when the world had just five to ten million people, they spoke perhaps 12,000 languages between them.

Soon afterwards, many of those people started settling down to become farmers, and their languages too became more settled and fewer in number. In recent centuries, trade, industrialization, the development of the nation-state and the spread of universal compulsory education, especially globalisation and better communications in the past few decades, all have caused many languages to disappear, and dominant languages such as English, Spanish and Chinese are increasingly taking over.

At present, the world has about 6,800 languages. The distribution of these languages is hugely uneven. The general rule is that mild zones have relatively few languages. Often spoken by many people while hot, wet zones have lots, often spoken by small numbers. Europe has only around 200 Languages: the Americas about 1,000, Africa 2,400; and Asia and the Pacific perhaps 3,200, of which Papua New Guinea alone accounts for well over 800. The median number(中位数) of speakers is a mere 6，000, which means that half the worlds languages are spoken by fewer people than that.

Already well over 400 of the total of 6,800 languages are close to extinction(消亡), with only a few elderly speakers left. Pick, at random, Busuu in Cameroon (eight remaining speakers), Chiapaneco in Mexico(150). Lipan Apache in the United States(two or three) or Wadjigu in Australia (one, with a question-mark): none of these seems to have much chance of survival.

1. What can we infer about languages in hunter-gatherer times?

A．They developed very fast.	B．They were large in number.
C．They had similar patters.	D．They were closely connected

2. Which of the following best explains "dominant" underlined in paragraph 2？

A．Complex.	B．Advanced.
C．Powerful.	D．Modern.

3. How many languages are spoken by less than 6, 000 people at present?

A．About 6,800 .	B．About 3,400
C．About 2,400	D．About 1,200.

4. What is the main idea of the text?

A．New languages will be created.

B．Peoples lifestyles are reflected in languages.

C．Human development results in fewer languages.

D．Geography determines language evolution.