Question: Read the following article and select the best answer. Article: Basic Study Manual (Hardcover): $37.50...... Here are the answers to the questions most often asked by students. Read this book and learn: *What the three barriers to study are and what to do about them * What to do if you get tired of a subject you are studying *Twenty-six simple drills to help you learn how to study easily, rapidly and with full understanding Buy and read the Basic Study Manual and use it to dramatically improve your ability to study. Study Skills for Life (Hardcover): $31.99 L. Ron Hubbard's study technology for teenagers opens the door to their future success by giving them advice on how to study and learn. Fully illustrated for easy comprehension. Learning How to Learn (Hardcover):$24.99 The basics of effective study for 8 to 12-year-olds, fully illustrated. Children who read and apply the materials in this book can regain their liking for study. Get this book for a child you want to see win at his studies! How to Use a Dictionary Picture Book for Children (Hardcover):$34.90 In spite of billions of dollars spent on "educational research", children are not taught the most basic skills of learning: how to use a dictionary. Written for children 8 to 12-year-old, this fully illustrated book will teach your children: *How to find words in a dictionary *The different ways that words are used *How to use a dictionary to correctly pronounce words At last, you'll just pay 50% for these books before May 1, 2007. (260 words) Question: This passage aims to_. - introduce new books to readers - guide readers to choose books - encourage people to buy the books - enlarge students' knowledge about books
Answer: encourage people to buy the books

Question: Read the following article and select the best answer. Article: Your stay in Britain should be a memorable and happy time. To achieve this, you need to prepare yourself well for the trip. Not only will you use English, but you will also need to get used to customs, attitudes and food that are different from what you know. Your stay will be more enjoyable if you join in with your host family, which is the family you will stay with. Use every opportunity to talk with your hosts. Do not just sit alone in your bedroom. If you plan to go out, you should tell them when and where you are going and when you expect to get back. This is important because your hosts are responsible for you. Find out what the "house rules" are. For example, who uses the bathroom first in the morning? When can you do your washing? Can you use the iron for your clothes? What about doing the dishes after dinner? Most British teenagers are very tidy. They are expected to help in the home and look after their things. Do not expect your host mother to do everything for you. The telephone can be a problem. At the start of your stay, ask your hosts if you may use their phone and of course, tell them you will pay for the calls to China. Make sure that you do not spend too long on their phone in the evenings. The food in Britain will be a new experience for you. Everyday food in Britain is not the same as the Western-style food you can find in China. Even so, you should try to eat whatever you are given. However, if it is something you really do not like, just say so politely. Do not bring your own food into the house. Whether you are at home or in a restaurant, do not spit out bones onto the table. Put them on the side of your plate. And remember--in Europe, people eat the main dish with a knife and fork. The spoon is used only for soup or dessert. Question: The best title of the text could be _ . - Enjoying British Food. - How to Learn English Better. - Adapting to English Family Life - How to Communicate with English People.
Answer: Adapting to English Family Life

Question: Read the following article and select the best answer. Article: Nuclear radiation has a certain mystery, partly because it cannot be detected by human senses. It can't be seen or heard, or touched or tasted, even though it may be all around us. There are other things like that. For example, radio waves are all around but we can't detect them or sense them without a radio receiver. Similarly, we can't sense radioactivity without a radiation detector. But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things. At very high levels, radiation can kill an animal or human being outright by killing masses of cells in important organs. Even the lowest levels can do serious damage. There is no level of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be serious. This is the case when only a few cells are hit, and when they are killed outright. Your body will replace the dead cells with healthy ones. But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They reproduce themselves in an unusual way. They can grow into cancer. Sometimes this does not show up for many years. This is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the knowledge of the person at the time that damage has occurred. A person can be irradiated and feel fine, then die of cancer five, ten, or twenty years later as a result. A child can be born weak or easy to get serious illness as a result of radiation absorbed by its grandparents. Question: Radiation can lead to serious trouble even at the lowest level _ . - when it kills a few cells - if it damages a few cells - though the damaged cells can repair themselves - unless the damaged cells can reproduce themselves
Answer:
if it damages a few cells