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Read the article and select the best answer. Article: Nuclear power's danger to health, safety, and even life itself can be described in one word; radiation . Nuclear radiation has a certain mystery about it, 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 us but we can't detect them, 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 completely by killing masses of cells in important organs . But 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 significant. This is the case when only a few cells are hit, and if they are killed completely. 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. Or a child can be born weak or easy to get serious illness as a result of radiation absorbed by its grandparents. Radiation can hurt us. We must know the truth. Question: According to the passage, the danger of nuclear power lies in _ . Options: A: nuclear mystery B: radiation detection C: radiation level D: nuclear radiation
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D

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Read the article and select the best answer. Article: Do Algebra problems 15 through 25. Give the different forms of the verbs on page 50 of your French workbook. Read page 12 through 20 of the Shakespeare play, and when you have finished that, don't forget to fill the missing chemical symbols on the Periodic Table of Elements worksheet. Homework is a major part of going to class, and it helps students grasp important concepts. Luckily, you can do a few things to make homework less painful. First, be sure you understand the assignment. Write it down in your notebook or day planner if you need to, and don't be afraid to ask questions about what is expected. It is much easier to take a minute to ask the teacher during or after class than to struggle to remember later at night! Second, use any extra time you have in school to work on your homework. Many schools have study halls that are specifically designed to allow students to study or get homework done. It is attractive to hang out with friends during study periods or unscheduled time, but the more work you can get done in school, the less you will have to do at night. Third, pace yourself. If you don't finish your homework during school, think about how much you have left and what else is going on that day, and then budget your time. Most high school students have between 1 and 3 hours of homework a night. If it is a heavy-homework day and it seems like you have got an assignment on every subject but gym and lunch, you will need to devote more time to homework schedule, especially if you are involved in sports or activities or have an after-school job. Question: Which of the following would be the best title of the passage? Options: A: Why students should do homework B: How to make homework less work C: It is high time teachers gave less homework D: Who is to blame for children's poor eyesight
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B

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Read the article and select the best answer. Article: My 3-year-old son and I lived a very hard life because I had been out of work since two years ago. Being poor is a terrible feeling when your 3-year-old finishes his meal and says: "Can I have some more bread and jam please, Mummy?" And you break down in tears, because you don't know how to tell him that there is no more food. With PS6, I went to the supermarket, picked up some food and started to cook at home. It was time for me to make a change and get back on my feet. I began to write a series of articles for the website named Hunger Hurt in July 2011. A few months later, local food bank gave me some help-- with some free vegetables every month, which made my life a little easier. I began to write recipes , posting them on my blog. To my surprise, families, students and those poor people told me how much it helped to see healthy recipes made from affordable supermarket vegetables. My Life took unexpected turns. I was invited to give a speech on food , interviewed for an Oxfam report on food banks and asked to write a cookery book. When I got the money from the book, for the first night in almost two years, I went to bed without worrying. Now, I have a well-paid job and a beautiful home, and I'll never forget the days when I worked hard for a good life. Question: The writer started to cook because _ . Options: A: the food at the supermarket was unhealthy B: she had to feed themselves in a cheap way C: she was advised to do so by someone D: her son preferred home-cooked food
(Answer)
B