Three kids have been learning chemistry for only a few months. But they have already begun to challenge (挑战) a world famous scientist!
Li Weichi, Huang Runling, and Xiao Yan are from Zhongshan Huaqiao Middle School in Guangdong. They have just found a red cabbage that could be a new kind of acid-base indicator (酸碱指示剂). They want it to take the place of litmus (石蕊) paper.
"We've learnt to think of and ask questions about life by ourselves," said Li, "We work well with each other."
British scientist Robert Boyle discovered the use of litmus paper over 300 years ago. Now it is used widely in experiments all over the world.
But when the kids did some experiments in class last winter, they saw that the litmus paper didn’t turn very blue with base matter. It's hard to get a clear result.
Will there be a better indicator than litmus paper? The three kids decided to try and find out!
How? They went to collect over 40 plants in parks, gardens and markets. Then they ground (研磨) leaves, flowers and stems (茎) to get the pigments (色素) from them.
The kids mixed pigments with acid and base. They spent months watching carefully to see which paper showed the best colour change. They decided it was the litmus paper!
"It's our first scientific journey, Huang said, "But it makes me want to try harder."
【小题1】 Whom did the three kids want to challenge?

A．Their chemistry teacher.	B．Their headmaster.
C．Robert Boyle	D．Thomas Edison

【小题2】 From the text, a red cabbage is a kind of ____.

A．plant

B．animal

C．paper

D．liquid

【小题3】What is widely used as the acid-base indicator now?

A．red cabbage	B．litmus paper
C．any plant	D．any flower

【小题4】The story mainly tells us ____.

A．how to make litmus paper	B．about the three kids' spirit
C．scientists were wrong	D．the kids are heroes

Three kids have been learning chemistry for only a few months. But they have already begun to challenge (挑战) a world famous scientist!
Li Weichi, Huang Runling, and Xiao Yan are from Zhongshan Huaqiao Middle School in Guangdong. They have just found a red cabbage that could be a new kind of acid-base indicator (酸碱指示剂). They want it to take the place of litmus (石蕊) paper.
"We’ve learnt to think of and ask questions about life by ourselves," said Li, "We work well with each other."
British scientist Robert Boyle discovered the use of litmus paper over 300 years ago. Now it is used widely in experiments all over the world.
But when the kids did some experiments in class last winter, they saw that the litmus paper didn’t turn very blue with base matter. It’s hard to get a clear result.
Will there be a better indicator than litmus paper? The three kids decided to try and find out!
How? They went to collect over 40 plants in parks, gardens and markets. Then they ground (研磨) leaves, flowers and stems (茎) to get the pigments (色素) from them.
The kids mixed pigments with acid and base. They spent months watching carefully to see which paper showed the best colour change. They decided it was the litmus paper!
"It’s our first scientific journey, Huang said, "But it makes me want to try harder."
【小题1】 Whom did the three kids want to challenge?

A．Their chemistry teacher.	B．Their headmaster.
C．Robert Boyle	D．Thomas Edison

【小题2】 From the text, a red cabbage is a kind of ____.

A．plant

B．animal

C．paper

D．liquid

【小题3】What is widely used as the acid-base indicator now?

A．red cabbage	B．litmus paper
C．any plant	D．any flower

【小题4】The story mainly tells us ____.

A．how to make litmus paper	B．about the three kids’ spirit
C．scientists were wrong	D．the kids are heroes

It is widely accepted that television is playing an important part in people's lives. But, there is a heated discussion as to whether television does good or harm.

Television keeps one learning more about present events, allows one to follow the most re­cent developments in politics and science, and offers various programs which are .both instructive and exciting. The most distant countries, the strangest customs and the most attractive scenes of nature are brought right into one's room or house.

However, some people insist that television is bad rather than good. They argue that it has brought about many serious problems. The major one is its effects on young people. Children are now so used to getting their information and entertainment from television that their ability to read and write as well as physical ability has been greatly weakened. Even worse than that, vulgar( 庸俗的) advertisements and poor programs may develop their bad tastes, shape their view points badly towards human life to such a degree that their minds might be destroyed.

In a word, television has both advantages and disadvantages. Whatever effects it has, one point is certain, television in itself is neither good nor bad. It is the use to which it is put that decides its value to society.

1.What are people discussing nowadays?

___________________________________

2.What are the advantages television has brought us ? (至少2点)

___________________________________

3.Why do some people think television is bad rather than good?

___________________________________

4.It is the use to which it is put that decides its value to society. ___________________________________

5.What's your opinion about television?

 

完形填空。(10小题，每小题1分，共10分)
More than three thousand languages are spoken in the world today . Many of these languages are spoken _36    small groups of people . On the 37   ,hand , over two hundred languages are spoken by one million or more people . Chinese is the language spoken by the ___38 ___number of people in the world . But English is most   39 spoken in the world .
English is spoken by more than four hundred million people  40  their first language . It is   41 by most people in the U.S.A. , Great Britain , Canada , Australia and New Zealand . And it is   42  used very widely in many other countries of the world . Look at the back of your watch . You may see the English words “Made   43  China” , or “Japan” , even “Germany” .
English is the first language in  44  of these . Why are English words   45  on it ? That is because in the modern world English is widely used for business between different countries .

【小题1】

A．as B．by C．for D．with

【小题2】

A．other B．others C．another D．the second

【小题3】

A．biggest B．bigger C．largest D．larger

【小题4】

A．wide B．wider C．widest D．widely

【小题5】

A．of B．in C．by D．as

【小题6】

A．spoke B．spoken C．speak D．speaking

【小题7】

A．either B．as well C．also D．too

【小题8】

A．at B．of C．with D．in

【小题9】

A．no one B．none C．nothing D．no

【小题10】

A．written B．wrote C．write D．writing

If the eyes are the windows of the soul, then the body is the mirror of our feelings. If we are feeling great, we may give our body signals(信号). If we look at someone else’s body, we can often tell how they are feeling by their body signals. So reading body language signals is a great tool in daily communication.
In case(假使) you don’t think that learning how to read and use body language is important, here are some numbers for you. 7% of the information we receive is from what people actually say, and 38% of the information we receive is from the tone(语气) and the speed of their voice; while 55% of the information we receive is from their body language.
These non-verbal(非口头的) signals will help you a lot, but you still need to focus on what people are saying. If you focus too much on their body language signals, you and the person may feel uncomfortable. It is useful to be able to read people’s body language, but it is useful to learn how to send the right signals and avoid the wrong signals too. Body language may be given several interpretations. Many signals have different meanings, depending on the person and the situation. Be sure of it when you are trying to read a body language signal.
【小题1】The numbers mentioned in the second paragraph are to ___________.

A．explain what body language is

B．show the importance of body language

C．tell us body language is less used than verbal language

D．tell us body language is the only tool in communication

【小题2】What is the meaning of the underlined sentence in the last paragraph?

A．Body language is widely used all over the world

B．Body language can be explained in different ways.

C．It’s too hard to understand the meanings of body language

D．People have already looked through many books on body language.

【小题3】According to the writer, body language is very ___________.

A．simple to learn	B．negative to be used
C．hard to understand	D．helpful in communication

【小题4】According to the passage, which of the following is TRUE?

A．Body language is uncomfortable.

B．What people are saying is not important

C．Body language can show your emotion.

D．To send wrong signals is not body language

【小题5】We can infer(推断) that the writer will most probably talk about __________ next.

A．what the wrong body language signals are

B．examples of how to understand body language correctly.

C．numbers about how many people wrongly use body language

D．an analysis (分析) of why people wrongly understand body language