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: The story mainly tells us _ . Yes or no, is the answer "about the three kids' spirit"?
No

Article: Steve Jobs, the designer of Apple Computer, wasn't smart when he was at school. At that time, he was not a good student and he always made trouble with his schoolmates. Then he dropped out . But he was full of new ideas. After he left college, Steve 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 life. Steve 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 . 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 such a great success that Steve Jobs soon became famous all over the world. ,. Question: At first Steve Jobs became a _ after he left college. Yes or no, is the answer "designer"?
Yes

Article: We usually believe what our brain tells us, but there are some amazing facts which show that the brain tricks us. As a result, we think we can see something that is not actually there or we ignore things that actually are there. Scientists Daniel Simons and Christopher Chabris have researched this phenomenon , which they call "change blindness". Their experiments show how we sometimes just do not see what is in front of our eyes because _ . Here is one of their most famous experiments. In this experiment, the participants were shown a video of two groups of people (one group in white T-shirts and one group in black T-shirts) who passed basketballs around in a hallway. Each group had three members. Simons and Chabris asked the participants to count how many times the white team passed the ball. While the two teams were passing their balls around, a person dressed up as a big bear walked through the group and stopped to look at the camera. Simons and Chabris found that about half of the research participants did not notice the big bear. Question: How many people did the experiment need in the video? Yes or no, is the answer "Seven."?
No

Article: If you look at the word Christmas, you can see the word Christ in it. On Christmas, people celebrate the birthday of Jesus Christ. Of course not everyone in America thinks Christ a great man, but Christmas is a holiday for all the people. It's on December 25. Shops and schools are not open. Almost every family has a Christmas tree in the house. People make their Christmas trees very beautiful. They put many colored bulbs on the trees. The bulbs make the trees more beautiful at night. They also put some dolls, balls and small animals on the trees. On Christmas day almost everyone gives gifts to others and also gets gifts from others. Question: The word Christmas comes from_. Yes or no, is the answer "the man of a man"?
Yes