【正文】 th it? We know that there are many famous people who succeed in great things through their hard work in China. Liu Xiang is a good example. Once an American teacher invited him there but he refused. He kept training hard with his Chinese teacher. He surprised the world when he won a gold medal at the Athens Olympics. So when you wonder which country is better to study in, consider whether studying abroad is the right choice. 49. The writer thinks should be considered first before students study abroad. A. places B. time C. money D. language 50. The writer mentions Liu Xiang in the passage in order to tell us that . A. Chinese teachers are better than American ones B. studying abroad is not the right choice C. people can also be successful in China if they work hard D. Liu Xiang was a gold medal winner 51. Which of the following is NOT true? A. Studying abroad will cost students’ families a lot of money. B. Studying abroad will make it easy for students to learn well. C. Studying abroad will help students to improve language skills. D. Studying abroad will bring students a lot of difficulties in their life. 52. This passage is mainly about . A. the problems of studying abroad B. the dream of studying abroad C. the choice of studying abroad D. the story of studying abroad C Do you know that you can use your watch as a pass(指南針 ) on a sunny day? Take a watch and point(指向 ) the hourhand in the direction of the sun. Imagine a line which runs from the center of the watch through a point halfway between the hourhand and number one. This line will surely point south. If you know astronomy a little, you will understand why this works. In the northern half of the earth, the Sun is in the south at noon. In Russia the real noon is one o’clock. If at that time we point the hourhand at the Sun, the hourhand and number one will point south. That is why you must imagine a line which will run from the center of the watch through a point halfway between the hourhand and number one. It will point south. If you are in the southern part of our pla, you must point number 12 at the Sun. The line which you can imagine between number 12 and the hourhand will then show north. 53. When we do this experiment in the northern part of the earth, we should point ____________at the Sun. A. number 12 B. the minutehand C. the hourhand D. number one 54. What does the underlined word “astronomy” mean in the passage? 55. The passage tells us that we can use a watch on a sunny day. A. to study the weather B. to show direction C. to enjoy ourselves D. to keep good time 56. If you are in Australia, which of the following is right way to show north? D What will you be doing when you are 26 years old? Studying at university or working for a living? Take a look at what Albert Einstein was doing at the age of 26. 100 years ago, Einstein was working in Switzerland. His hobby was physics. Without much money or help, he wrote five papers(論文 ) for a physics magazine. Three of these greatly changed the study of physics and our understanding of space, time, light and matter(物質(zhì) ). His most famous work is on the Theory of Relativity(相對(duì)論 ). Einstein was given the Nobel Prize for his discoveries. Although he also did many other things later, the years 1905 has been called Einstein’s “Year of Wonders”. It has been 100 years since then. Because of this, the UN has named 05 the World Year of Physics. Today, over fifty years after Einstein’s death, a question is asked, “ Will there ever be another Einstein?” It may take a long time. After all, Einstein was born more than 200 years after Sir Isaac Newton, another great scien