Researchers are now using 3D printing to create models of the human heart to help heart specialists. The heart doctors can use the models to better help patients before an operation. Dr. Bramlet, a children's heart expert at the University of Illinois College of Medicine, says the 3-D models show information he cannot get any other way. "And so what we've done with the printed models? We've pulled it out of the screen so that you can actually hold it in your hand and evaluate the anatomy ." A 3-D printer uses images from a digital display to create a physical model of a human heart. Matthew Bramlet says doctors can use the model to understand the anatomy. Pictures from medical tests like CAT scan or MRI are sent to a 3-D printer to create a heart in a plaster form. The printer then constructs the heart, thin layer by thin layer. Dr. Bramlet says the model matches the real heart in every detail. "When we're done with the model and made our decision, we want to be able to go back to the source image and confirm those findings," he says. Dr. Bramlet has built model hearts for different kinds of heart operations. All of the operations were successful. In his first case, digital images showed only one tiny hole in a baby's heart. But, the 3-D printed model showed several defects or problems that the baby was born with. Dr. Bramlet says those defects could not be seen easily in the images. The heart surgeon was able to change the type of surgery for the patient based on the 3-D model. He added that 3-D heart models saves time during heart operations. Kathy Magliato is a heart surgeon at Saint John's Health Center in Los Angeles. She welcomes the new technology. She says it could help her make better decisions before she operates on the hearts of her patients. "I can then take this very complicated structure before the operation and I can hold it in my hand and plan an operation around what I'm seeing, touching and feeling. That to me is what can potentially change the game in an operation and save lives." Dr... What can we infer from the passage? A) Digital images will mislead heart surgeons. B) More patients will benefit from the 3-D technology. C) Heart operations will never fail with 3-D models. D) Surgeons cannot operate on hearts without 3-D models.
B
(Question)
Nowadays the problem of the generation gap is becoming more and more serious. Poor relationship between parents and their children are very common. Whether we like it or not, our parents are responsible for us at least until we're out of high school. So rather than get upset about that fact, maybe we should focus on some ways to make our relationship better. The best way, in my opinion, is to learn to really communicate with my parents. When I find myself arguing with my mom and dad, I try to stop. If I can manage to stop myself from talking, I usually find that I can calm down quickly. I guess I'm usually acting out of emotion rather than logic . But if I can stop arguing for a minute, it seems that my opinion changes and I start to realize that I'm a bit childish. Emotionally I may still be upset, but logically I understand that yelling and fighting surely won't make things better. Once I've stopped arguing, I look at my parents in the eye. You'd be amazed at how much easier it is to communicate with your parents when you've actually looking at them. Looking away doesn't do much of anything except for giving them the impression that I'm not listening or that I don't care. It's much easier to see things eye to eye when you're physically seeing them eye to eye. Finally, I listen to what they're saying (or at least I try). Communication can't happen unless both sides hear and listen to each other. There is nothing wrong with my hearing, but that doesn't mean I always listen to the sounds that people are making. When I argue with my parents, I can physically hear what they're saying without mentally listening to it. Whether I admit it or not, my parents' experience can actually help them give me some pretty sound advice at times. I don't always agree with them, but I think it's safe to say that it has truly helped our relationship in the long run. The author thinks we should first _ when arguing with our parents. A) look at their eyes B) fight for the truth C) stop arguing D) talk in a low voice
(Answer)
C
Ques: Knowing the best way to study will help you to be a better student. By using your tin7eproperly, you can do your homework snore quickly. Learning to study is not difficult. The first thing to remember is that you must be willing to learn It doesn't mean that yep must always like the subject. It does mean, however, that you must be willing to do whatever is necessary to learn Try to understand why it is important and how it will help you now arid later to do and learn other things. Knowing mathematics facts will be useful in your whole life. Knowing how to spell makes any kind of writing easier. Sometimes the subject that you think is going to be uninteresting will be exciting when you begin to work at it and understand it more clearly. Learning things can be fun if you are willing to work with them Here's some advice for you; have a certain time each day and a quiet place with good lighting for study, so that you can concentrate on your study without interruptions; have eve- rything ready before you sit down to study, a dictionary, paper, a pen and books; be sure you understand what you should learn before you start;read carefully and pay special attention to the most important things;when memorizing, first find out the main parts and then recite the whole thing,check your homework after you finish it; never forget the importance of review and preview. Don't try to spend a lot of time researching learning methods. There are many students who know many good learning methods but don't study well. They forget that the most useful learning method is to study hard The following advice is given in the article EXCEPT _ A) to put a pen, paper and books beside you before study B) to study at any possible time and place C) to review and preview D) to pay attention to the most important things
Ans: B
Ques:It's 8:30, time for John to start work. So he turns on his radio. Then he eats breakfast. As he eats, he reads his e-mail and reviews his to-do list. Then he sits on the sofa and thinks about an article he needs to write ... Wait a minute! Radio? Breakfast? Sofa? What kind of workplace is this? Well, actually it is John's house, and he is a telecommuter -- he works at home, communicating with the workplace through the Internet. Like John, millions of people -- and their employers -- are finding that telecommuting is a great way to work. Telecommuters can follow their own timetables. They work in the comfort of homes, where they can also look after young children or elderly parents. They save time and money by not traveling to work. Their employers save, too, because they need less office space and furniture. Studies show that telecommuters change jobs less often. This saves employers even more money. Telecommuting helps society, too, by reducing pollution and traffic problems. Jobs that are _ telecommuting include writing, design work, computer programming and accounting. If a job is related to working with information, a telecommuter can probably do it. One of the advantages of telecommuting is that you can _ . A) work for several employers B) enjoy a lot of traveling C) get along well with other workers D) work on your own schedule

Ans:
D