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."

1. Whom did the three kids want to challenge?

A. Their chemistry teacher.     B. Their headmaster.

C. Robert Boyle              D. Thomas Edison

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

A. plant　　B. animal　　C. paper　　D. liquid

3.What is widely used as the acid-base indicator now?

A. red cabbage              B. litmus paper

C. any plant                D. any flower 

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

A teenage girl couldn't stand(忍受) her family rules，so she left home.
　　She wanted to be a star and became   1 . But she had a little education and  a few years later，she had to ask for food on the street for a living. Now her father has  2  . Her mother is an old woman. But she is still     3  her daughter. She went to every corner of the city. Everywhere she goes，she put up a big photo of herself on the wall. At the lower part of the    4  she writes，“I still love you …Come back home！”
One day，the daughter saw one of the photos. She was so surprised that she couldn't believe her    5  . “Is that my mother？”She moved    6 and read the words，“I still love you…” She cried. When she got home，it was early morning. She pushed the door. The door    7   itself. She rushed to the bedroom at once. Her mother was sleeping there. She woke her mother up，“It's me！Your daughter is back home！”The mother and daughter looked at each other excitedly，full of   8   tears. The daughter asked，“     9  is the door unlocked？A thief could get in.” The mother answered softly，“The door    10 locked  after you left. We miss you all the time. We believe that you'll come back some day.”
The door of parents’ love for their children will never be closed.

Early to bed, early to rise, makes a man healthy, wealthy and wise.　　

This is an old English saying. Have you heard of it before? It means that we must go to bed early and get up early in the morning. Then we shall be healthy. We shall also be rich (wealthy) and clever (wise).　　

This is true. The body must have enough sleep to be healthy. Children of young age should have ten hours’ sleep every night. Children who do not have enough sleep cannot do their work very well. They will not be wise and they may not become wealthy!　　

The body also needs exercise. Walking, running, jumping, swimming and playing games are all exercise. Exercise keeps the body strong. Exercise also helps the blood (血液) to move around inside the body. This is very important. Our blood takes food to all parts of our body. The head also needs blood .Exercise helps us to think better!　　

1.If we get up early and go to bed early , we’ll _________ .　　

2.If a child doesn’t have 10 hours’ sleep, maybe he _____ .　　

3.A person needs exercise because _______ .　　

4.Exercise makes the ______ move quickly and smoothly(流畅)　　

5.Which of the following if Not TRUE?　　

Steven Jobs, the designer of Apple Computer, was not clever when he was in school. At that time, he was not a good student and he always made troubles with his schoolmates. When he went into college, he didn’t change a lot. Then he dropped out（退学）. But he was full of new ideas.

　　After he left college, Steven Jobs worked as a video game designer. He worked there for only several months and then he went to India. He hoped that the trip would give him some new ideas and give him a change in his life.

　　Steven Jobs lived on a farm in California for a year after he returned from India.

　　In 1975, he began to make a new type of computer. He designed the Apple Computer with his friend in his garage. He chose the name “Apple” just because it could help him to remember a happy summer he once spent in an apple tree garden.

His Apple Computer was so successful that Steven Jobs soon became famous all over the world.

He often said, “I live in order to change the world, there aren’t any other reasons. The only way to have a great achievement is to love your own career. If you can’t find your  favorite career ,go on looking for it and never give up.”

This is Steven Jobs, though he is dead, his spirit and achievements still influence our lives.

1.Steven Jobs was not a good student in school because he ________.

A．never did his lessons

B．dropped out

C．always made troubles with his schoolmates

D．he was full of new ideas

2.Why did Steven Jobs go to India?

A．Because he wanted to be a video game designer.

B．Because he wanted to get some new ideas.

C．Because he wanted to make a new type of computer.　

D．Because he wanted to have a happy summer.

3.Steven Jobs was famous for his ________ all over the world.

A．new ideas　　     B．Apple Computer　　 C．video games       D．saying

4.From this passage we know Steven Jobs ________.

A．didn’t finish his studies in the college because he hated his schoolmates

B．liked traveling in India and California

C．liked trying new things and making his new ideas come true

D．thought he had many reasons to live in the world

5.Which of the following sentences is NOT true according to this passage?

A．The only way to have a great achievement is to love your career.

B．The name “Apple” helped Jobs to remember a happy summer in an apple tree garden.

C．If you can’t find the career you love, give it up and try another one.

D．People remember Jobs because of his achievements.