题目内容

Will there be more people in 100 years, do you think?        , I hope.

A．No, there isn’tB．No, there aren’t
C．No, there won’tD．No, they won’t

C

解析

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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 BoyleD．Thomas Edison
【小题2】 From the text, a red cabbage is a kind of ____.
A．plantB．animalC．paperD．liquid
【小题3】What is widely used as the acid-base indicator now?
A．red cabbageB．litmus paper
C．any plantD．any flower
【小题4】The story mainly tells us ____.
A．how to make litmus paperB．about the three kids' spirit
C．scientists were wrongD．the kids are heroes

–Will there be a basketball game on CCTV-5 tonight?
-__________________. Would you like to watch it with me?

A．Yes, there is.B．Yes, there will.C．No, there isn’t.D．No, there won’t.

Michael Jackson’s sudden death really astonished(震惊) his fans, but soon they are glad to find another younger “King of Pop” has appeared.

 Wang Yiming, who is known as Xiao Bao, has already been popular across the world with his wonderful dance moves. He once appeared on U.S. television show “Ellen” and performed successfully at the World Expo 2010.     About seven years ago, Xiao Bao was born prematurely（早产）, which made his mother really worried. He was so weak. What could he do? Doctors suggested that moving his body to music would help make him strong, but soon his parents were surprised by how quickly Xiao Bao fell in love with music!

“When he was young, we just started playing music to him and he started moving around like this. But we didn’t think that he had such a strong feeling for music. When he was just several months old, we would let him listen to music and he would stop crying and calm down at once,” the proud mother once said.

So far, Xiao Bao has learned the moonwalk and other Jackson’s moves well. His fans are crazy about his wonderful shows. He has drawn more people’s attention. He is fast becoming internationally popular.

There are lots of problems waiting for him, but Xiao Bao will never give up. He is serious about his dancing career(事业). Where there is a will, there is a way. We are sure that Xiao Bao’s dream will come true one day.

1.Xiao Bao has been famous for ___________.

A. his young age      B. his dance moves

C. his television shows          D. his strong body

2.Why did doctors advise Xiao Bao to dance?

A. Because they knew Xiao Bao’s feeling for music.

B. Because Xiao Bao’s parents wanted them to do so.

C. Because Xiao Bao likes Michael’s dancing a lot. 

D. Because they thought dancing would be good for his health.

3.How did Xiao Bao’s parents feel when they first saw his reaction(反应) to music?

A. Surprised.        B. Happy.              C. Proud.                         D. Worried.

4.What can we learn from the passage?

A. People have paid little attention to Xiao Bao.

B. Xiao Bao’s fans are not satisfied with his moves.

C. Xiao Bao works seriously and never gives up dancing.

D. His parents worry about their son’s crazy love for music.

5.What’s the best title for the passage?

A. A Boy’s Dancing Career.              B. A Younger “King of Pop”.

C. Michael Jackson’s Moves.             D. Wang Yiming’s Hobby.

 

— Will there be more people in the future ?

— No, ________. There will be fewer people.

A. there is          B. there isn’t       C. there will       D.there won’t

 

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

 

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