If your pen broke at school today,what would you do?You would go to a shop and buy a new one.What if you could simply print out a real,working pen with your 3-D printer without leaving your room? The 3-D printer has been used to make many different things.People have made cups cars and even an airplane with it. Doctors have been using 3-D printers for several years.People's nervous systems have been printed out in 3-D form medical research.Some body parts have been printed and used in hospital.Several months ago,doctors used a 3-D printer to rebuild Ten years ago people could only see 3-D printing in science fiction movies.But now 3-D printing is here and it's bringing big changes. Unlike normal printing that can only copy a 2-D picture with ink.3-D printing can build almost anything made from material.The printer layers the material in different shapes to create the object you want to be copied.the face of a person who had a bad accident.In the future,it is expected that the printer will make human organs to save more lives. However there are _ to the printer.At the moment,printing can be quite slow and it's still rather expensive.The average price of a household printer is around $1,700,not including the cost of the materials. But as the technology develops,it shouldn't be long before disadvantages are improved.Only time will tell where this new technology will take us. ,A, B, C, D,. What's the best title of the passage? A) The advantages of 3-D printing B) The disadvantages of 3-D printing C) The changes brought by 3-D printing D) The rapid development of science
C

Dear Fang, How are you these days? I have been in England for two months. It's not a long time for a newcomer, and there are still a lot of things to do. Sorry for not being able to write to you soon. London is an old but beautiful city. There are lots of places of interest to visit. Last weekend I went along Thames River with some friends from Japan, Korea and some other countries. The modern skyscrapers among the old buildings impressed(...) us deeply. The classes started two weeks after I arrived here alone. Besides the language, I'm trying to learn about the culture as well. British people are quite different from the Chinese. Do you know the people here do not shake hands as much as we do in China? And it's never a good habit to make noise when you eat. They think it's impolite. There is so much to say, but I have to stop. I will write to you soon again. Love, Harry English people _ . A) do not often shake hands with their friends when they meet B) often shake hands when they meet their friends C) talk aloud when they have dinner D) usually make noise when they eat
A

Dear David, How are you? I'm fine. I'm in London , at a school of English. I'm in Class Seven. It has eight students. They are from different countries ----Spain, Japan , Argentina, Switzerland and Thailand. Our teacher's name is Henry Briscall. He's very nice. He's a good teacher. I live with an English family, Mr. and Mrs. Brown. They have two sons and a daughter. Thomas is fourteen, Catherine is twelve, and Andrew is seven. They are all very friendly to me, and we are good friends. London is very big and very interesting. The weather is good and the parks are nice! Hyde Park, Green Park and St. James' Park are all in the city center . English food is OK, but the coffee is not good! Are you all right at home in Shanghai? Is everything OK? Write to me. Love, Paul The writer lives _ now. A) at school B) at home in China C) with his classmates D) at Mr. Brown's home
D