Read the following article and select the best answer. Article: To many students, joining social media "circles" is now more important than making new friends in real life. And it's easy. If you have a cell phone, you can download apps such as Sina Weibo, WeChat and QQ. "I love to check my friends' updates . I also enjoy news and humor shared on social media," Said Ou Wei, 14, from Hongling Middle School in Shenzhen. Because of enjoying these, Ou _ himself from real life. "I love playing the plane-shooting game on WeChat, but have no interest in playing flying chess with my classmates," said Ou. Deng Yunyun, 14, from Jianfeng Middle School in Shanghai, said that social media had influenced their life. Recently his school held a basketball match, and a student hurt his leg. Instead of giving him some help, students were busy with updating micro blogs about the accident. "I think they need to learn to balance their real and online lives," said Deng, What makes parents and teachers worried is safety. "Many students are happy to tell their interests and personal information to their social media "friends". Such information could bring them danger," said Han Songjun, a teacher at Hongling Middle School. For example, WeChat's shake-shake function allows users to connect to other users close by. But the police warn about the danger of socializing in this way. "Be careful. Do not use the locating function in any app, do not give your name, and do not post the photos of your residential area ," said the police. Question: What does the writer want to tell us? - Many students are using WeChat. - Social media makes our life more interesting. - Social media is very popular. - Social media can be bad and dangerous.
Social media can be bad and dangerous.

Read the following article and select the best answer. Article: Pearl and June were good friends and spent most of their time together. They were both very old and they worried about their health. Most of the time they talked about nothing else. They worried about their food. Was it clean? Would it give them pains in the stomach? They worried about the weather. Was it too cold and wet? Would it give them pains in their bones? They worried about pollution in the air. would it give them pains in their chests and throats? They worried about being hurt in a car accident, killed in a plane crash, getting sick, and so on. All they could think about was being ill or hurt. One day they went on a train journey together. "We'll need some food," Pearl said. "We'll buy some bananas," June said. "They are good to eat and always clean." And so they bought two bananas to eat on the train. It was not long before they were hungry. Pearl took out the bananas and gave one to June. Then she peeled the skin of her banana and took a large bite of it. At that moment the train went into a tunnel. Everything went black. "Don't eat your banana," Pearl shouted at June. "Mine has made me go blind!" Question: The two old ladies talked about _ most of the time. - themselves - other people - healthy food - dangerous drivers
themselves

Q: Read the following article and select the best answer. Article: Here are some of the fastest animals in the animal world. Let me tell you that a man can run 20 to 25 miles an hour. Heavy people can not run very fast. But some heavy animals can.Black rhinos are more than 3,500 pounds. They can run almost 30 miles an hour. Cheetahs are the fastest land animal over short distances .They can run over 70 miles an hour. But they get tired quickly and usually stop after a few minutes.Pronghorn antelopes are the fastest animals over long distances. They can run 35 miles an hour for many miles. Their top speed is more than 50 miles an hour.Ostriches can't fly, but they can run faster than other birds. They can run 43 miles an hour for a short distance. And can keep up a speed of more than 30 miles an hour over long distances. Question: What are the fastest land mammals over short distances? - Cheetahs. - Pronghorn. - Horses. - Elephants.
A: Cheetahs.

Question: Read the following article and select the best answer. Article: On June 26, 2000, two scientists, called Francis Collins and Craig Venter, told the world that they could read the whole "map" of the human body: DNA. DNA is something that everybody has, and it tells the body what to do. DNA is the reason that we look like our mother and father, because we get some of their DNA to make our own. People have been trying to understand the human body for a long time. In 1860, Gregor Mendel discovered a special reason why we look the same as other people in our family. It is because of small things named "genes" in our body. In 1953, James Watson and Francis Crick made another discovery and found out that those small parts are real messages written in the DNA with a special language. In 1961, Marshall Nirenberg and Johann Matthaci found a message in DNA showing how DNA tells the cell to build its parts. Scientists have now found all the words in the DNA map, but we still do not understand what they all do. By understanding what just one "word" means, we can help save more people from several illnesses. Most people hope that this will help make better medicine and help sick people. Other people worry that when people begin to know more words and find out lots of other information, we might use it in a wrong way, just to make people more attractive, or stop sick people from getting jobs. Man would have to meet a lot of trouble if DNA technic wasn't limited in use. Question: What can we do if we understand some " words" of the language inside the body - Make people get new jobs. - Make medicine for illnesses. - Make maps of human. - Make people less attractive.
Answer: Make medicine for illnesses.

Q: Read the following article and select the best answer. Article: What can we learn from the special, very successful people in the world who make the impossible possible? Lesson 1: Ways of creative thinking are needed Bill Gates and Mark Zuckerberg both dropped out of college. They prefer to teach themselves because they like to develop their own ways of thinking. They think standard ways of teaching might stop people from being creative and having new ideas. Lesson 2: The answer might not be what you expect Find your answers from facts -- not start with an expectation of what you will find. Stephen Jacobsen from Northwestern University believed what he was taught: that water on Earth came from icy comets or planets which hit into Earth. However, by studying a special rock, he discovered that it acts like a sponge . This suggests that Earth's water may have come from inside, driven to the surface to form the oceans, by geological activity. "I had a pretty hard time making others believe it," he said. "But thinking about the fact that you may the first person to see something for the first time doesn't happen very often. When it does, it's amazing." _ Years of planning went into a recent achievement in space travel. The European Space Agency's "Philae", a robot landing craft, met up with Comet 67P, which is 480 million kilometers away. The trip from Earth by "Philae" had taken ten years! The scientists had no idea what the surface of the comet would be like. If the landing failed, it would be impossible to get information from the spacecraft. Twenty years of work would have been wasted. When "Philae" tried to land, it bounced away from the comet's icy surface twice. Luckily, however, "Philae" landed successfully and began sending information back to Earth. Question: Bill Gates and Mark Zuckerberg didn't finish college because _ . - they preferred to learn by themselves - they needed standard ways of teaching - their teachers didn't like their new ideas - their teachers weren't able to teach them
A: they preferred to learn by themselves