Read the following article and answer the question. Article: Three kids have been learning chemistry for only a few months. But they have already begun to challenge 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 . They want it to take the place of litmus 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 leaves, flowers and stems to get the pigments 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." Question: Whom did the three kids want to challenge? Answer:
OPTIONS:
- Their chemistry teacher.
- Their headmaster.
- Robert Boyle
- Thomas Edison
Robert Boyle
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Read the following article and answer the question. Article: Firefighter Regina Wilson works in Brooklyn, New York. A reporter is asking Regina questions about how she does her job. Reporter: How long have you been a firefighter? Wilson: Eight years. Reporter: How did you get started? Wilson: First, I had to take a lot of tests. Then, I went to firefighting school for 13 weeks. I learned how to put out fires and how to use equipment . Reporter: How do you stay safe on the job? Wilson: I wear special clothing called bunker gear. It helps keep me safe from fire. I also carry an oxygen tank and a mask . They help me to breathe in a smoke-filled building. Reporter: Are there any new tools that firefighters use? Wilson: We have a special camera that can see in the dark. It can find heat. That way, we can tell where a fire is located. Reporter: Do you save pets? Wilson: I recently helped save some kittens. They were hiding under the beds. Pets usually hide during a fire because they are scared. Reporter: Do you ever get afraid? Wilson: There is no time to be afraid. I think about what I have to do to put out the fire safely. Reporter: What do you like best about being a firefighter? Wilson: Helping people! ,. Question: Why does Regina Wilson say she does not afraid? Answer:
OPTIONS:
- She has an oxygen tank.
- She enjoys her job too much.
- She knows how to fight fires.
- She is too busy putting out fires.
She is too busy putting out fires.
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Read the following article and answer the question. Article: Simon hardly listened to his teachers or worked hard in class. For him, talking was so much better. He never stopped talking. He wanted to be heard. "If you listen carefully, you'll learn something." Mrs. Jacobs told him many times, but it didn't work. Last Sunday, Simon had a sore throat and he lost his voice the next morning. "Can I stay home?" he tried to ask, but words didn't come out. His mother thought he could go to school. He felt upset. When he got to school, he didn't say anything to his friends or teachers. Everyone started talking at once. They were excited, worried and surprised. Mrs. Jacobs seemed happy. Simon was bored because he couldn't talk. But it wasn't so bad. He could do his homework. The next day, even though his voice was coming back, he stayed quiet again. He listened and put up his hand to speak. What a great difference! ,. Question: Simon _ before last Sunday. Answer:
OPTIONS:
- was hard-working
- was shy
- kept silent
- liked talking
liked talking
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Read the following article and answer the question. Article: Information is received into our brain by attention, and its quality determines how well _ will be processed, saved and used afterwards. All information we receive is chosen by our attention. Factors affecting our attention are personal interest, experience, ability, feelings, knowledge, environment, timing, and so on. The same information may attract different forms and levels of attention from different people. Some people can get and save the information easily; some may have great difficulty; while others may just turn a blind eye to it. To the same information, one may even pay different levels of attention at different times. But if the facts work together, the quality of attention may be better. Therefore, it is not surprising to see that somebody with average intelligence can have excellent performances in some fields. The good news is that a person's attention can be shaped, trained and made stronger by effective exercise. With this in mind, we should keep improving the quality of our attention. Question: About attention, which of the following statements is right? Answer:
OPTIONS:
- People always have the same level of attention.
- People pay the same attention to the same information.
- A person may pay different levels of attention to the same information at different times.
- All factors affecting attention never work together.
A person may pay different levels of attention to the same information at different times.
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