We can learn a lot            Chinese history.

A．about            B．for               C．of               D．from

We can learn a lot            Chinese history from this book.

A．about            B．for               C．of               D．from

【小题1】Although David is only 2 years old, he can learn to sing the song by_______ (he).
【小题2】I'm doing a survey about how __________ (improve) English quickly.
【小题3】My daughter likes collecting. She has collected all kinds of ___________ (knife).
【小题4】I think there will be ____________ pollution in the future if we plant more trees now. ( little )
【小题5】He did his homework so __________ that he made few mistakes. ( careful )
根据语境或句意，从方框中选择恰当的词并用其正确的形式填空，使句子意思正确完整，并将答案填入答题卡上指定的位置。

【小题6】"Would you mind _______ the dishes?" "OK. I'll do them right away."
【小题7】 Henry gets on well with everyone in our class. He's always _________    to all of us.
【小题8】Martin was_    in Chinese history after he came to China and he read a lot about it.
【小题9】Teenagers are not _________ to smoke because smoking is bad for their health.
【小题10】_________ of children like watching the TV show Where Are We Going ,Dad? It's really fantastic.

Throughout history, people have been interested in knowing how language first began, but no one knows exactly where or how this happened. However, we do know a lot about languages, the language of today and also the languages of earlier times. There are probably about three thousand languages in the world today. Chinese is the language with the most speakers. English, Russian and Spanish are also spoken by millions of people. On the other hand, some languages in the world have less than one hundred speakers.
There are several important families of languages in the world. For example, most of the languages of Europe are in one large family called Indo-European. The original language of this family was spoken about 4,500 years ago. Many of the present-day languages of Europe and India are modern forms of the language of 4,500 years ago.
Languages are always changing. The English of today is very different from the English of 500 years ago. In time, some even die out completely. About 1,000 years ago, English was a little known relative of German spoken on one of the borders of Europe.
If a language has a number of speakers, or if it is very old, there may be differences in the way it is spoken in different areas. That is, the language may have several dialects. Chinese is a good example of dialect differences. Chinese has been spoken for thousands of years by many millions of people. The differences between the dialects of Chinese are so great that speakers of Chinese from some parts of China can’t understand speakers from other parts.
【小题1】The first paragraph mainly tells us that_______.