3D printing technology may not be a new thing in some foreign countries. But in May this year, at Shenzhen Convention and Exhibition Center. Many visitors were attracted by a 3D printer. The machine looks similar to an ordinary printer and can print a "statue" in about 90 minutes after scanning anything, including a person. The printer prints layer by layer. For example, if we want to print a 30-cm-tall statue, the computer will calculate* the layers and print 460 layers in total*. It can also print people and clothes. You can stand for scanning for just about three minutes, and a statue will be finished about two hours. The cost for a statue of a man is about 1000yuan. The printer, which costs about 500,000yuan, is from the USA. "We want to introduce this technology to people, and find more chances here." said an engineer, "There is a company in USA that offers 3D printing services to people. Many people come to design their own thing. It is very cool. We hope that the printer will encourage more Chinese people to be more creative." A 3D printer _ . A) is a common machine B) prints layer by layer C) can make clothes and people D) is widely used in Shenzhen
B

School education is very important and useful. The students both learn knowledge and get educated. Yet, no one can learn everything from school. Scientists, such as Edison, Newton, Galileo and Einstein, didn't learn everything from school. They learnt a lot of knowledge outside school or practiced a lot themselves. A teacher, though he knows a lot, can't teach his students everything. The teacher's job is to teach his students how to learn, how to read and how to think. A good teacher with rich experience in teaching can teach his students the methods (="ways)" of study. Through these methods students are able to learn and get a lot of things by themselves. Usually it's very easy for students to memorize some knowledge, but it is difficult to use it to solve problems. If a teacher really teaches students the ability of how to use knowledge, it means the teacher has learned lots of knowledge by himself(or herself). The success in learning shows he or she knows how how how to study. (,10) Which of the following is the best title? A) A real job for teachers B) Study in and outside school C) Practice-the only way of learning D) How to learn language
A

Have you ever watched the big parade on Tian'anmen Square on October 1? Some students performed in the big parade. In order to get ready for it, this summer, many Beijing middle school students had a different kind of vacation. Instead of hanging out with friends or traveling, they trained hard for the 60th birthday of China this year. Students trained from 7:30 am to around 10:00 am or from 4 pm to 6:30 pm, because it was very hot this summer. They wore white hats, T-shirts and blue trousers. The hats and T-shirts were printed with a red logo, the number "60". The first week of training was PE. Students practiced standing and squatting. Then they moved on to practice the group show. When we watched the parade on TV we saw them making colorful pictures. What did the students think of their unusual summer? "Sometimes we find it a bit tiring." said Lu Wenqi, 13. "But most of us think it's a great _ to take part in such an important show." Li Hui, 15, thought the same as Lu. She said her classmates were hardly late for training. "It's a wonderful chance for us," said Li. "When my parents were in college, they also took part in a national day parade. Now it's my turn!" The first week of training was _ . A) to watch the parade on TV B) to make colorful pictures C) to practice the group show D) to practice standing and squatting
D