(Q).
Read the article and select the best answer. Article: The red crab lives on Christmas Island in the Indian Ocean and has been found nowhere else in the world. But on its homeland it is a very significant species -- some 120 million individuals cover the rain forest floor and play a major role in determining the structure of the ecosystem. These large crabs are active during the day but prefer to stay in the shade and can die in the heat of direct sunlight. They feed on fallen leaves, seeds, fruits and flowers, recycling nutrients and helping to determine the spread and composition of native plants. Most of the year the red crabs live in the holes they dig throughout the forest. During the dry season they hide in these shelters to keep their body wet and remain there for two to three months. But when wet season returns in October or November they begin a legendary mass migration to their seaside breeding grounds, moving in color1ful wave that wash over all obstacles like roads (including special passages and some closed roads built for the red crab) and even seaside cliffs. The annual migration is also closely tied to the lunar schedule. The crabs arrive at the coast and breed at such a time that the females can produce eggs and develop them in caves for a dozen or so days before carrying them into the sea exactly when high tide turns between the last quarter and new moon. During this period sea level on the beaches varies the least and offers an easier approach, which is so important that if the weather delays the migration crabs will put off laying eggs until the next lunar month. Red crab eggs grow right away, and the young live in the sea for a month before returning to the coast, changing into air breathers, and slowly returning inland to begin the cycle once again. Question: What's important for the red crab to reproduce their young? Options: A: The right caves. B: The number of the crabs. C: The movement of the moon. D: The temperature of the tide.
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C

(Q).
Read the article and select the best answer. Article: Is a mouse that can speak acceptable? How about a dog with human hands or feet? Scientists, the people with the know-how to make such things happen, are now thinking about whether such experiments are morally right or not. On Nov. 10, Britain's Academy of Medical Sciences launched a study on the use of animals with human materials in scientific research. The work is expected to take at least a year, but its leaders hope it will lead to guidelines for scientists in Britain and around the world on how far _ can go mixing human genes into animals in search of ways to fight human diseases. "Do these constructs challenge our idea of what it is to be human?" asked Martin Bobrow, a professor of medical genetics at Cambridge University and chair of a 14-member group looking into the issue. "It is important that we consider these questions now so that appropriate boundaries are recognized." Using human material in animals is not new. Scientists have already created monkeys that have a human form of the Huntingdon's gene so they can study how the disease develops; and mice with livers made from human cells are being used to study the effects of new drugs. However, scientists say the technology to put ever greater amounts of human genetic material into animals is spreading quickly around the world --- raising the possibility that some scientists in some places may want to go further than is morally acceptable. Last year in Britain there was a lively debate over new laws allowing the creation of human-animal embryos for experiments. On one side of the debate were religious groups, who claimed that such science interferes with nature. Opposing them were scientists who pointed out that such experiments were vital to research cures for diseases. The experts will publish reports after the end of the study, in which they will give definitions for animal embryos with human genes or cells, look at safety and animal welfare issues, and consider the right legal framework to work within. Question: Scientists do research of mixing human genes into animals in order to _ . Options: A: test new drugs on animals B: to find ways to fight human diseases C: prove the research is morally acceptable D: create monkeys and mice with livers made from human cells
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B

(Q).
Read the article and select the best answer. Article: Your beliefs are very powerful and have the power to create or to destroy your life. In most cases, whatever you believe is what you will become. If you believe that you are a loser, that you never get a breakthrough in life, and that you can't accomplish(succeed in doing) anything, these things will be your reality. Believe that you are unlimited, that you can do anything you hope to do and when you do, your accomplishments will know no bounds. You control your beliefs, and that is how you finally control your life. This is a very important point. So how do you develop beliefs that will empower you? Many of our beliefs come from our environment, the world we live in on a daily basis. If your environment is limiting your beliefs, then work very hard on changing it. If you are constantly around people who are negative and limiting, find other people to hang out with and get around positive, successful people. Beliefs also come from past experiences. That is why it is so important to experience success on a regular basis. Set small achievable goals, and then try your best to reach them. "I will finish this project by early afternoon." "I will make six calls on the phone in the next hour." "I will exercise 20 minutes tonight." When you start to experience success, then you start to believe in success, and that leads to more and bigger successes. Beliefs come from knowledge. The more you learn, the more things you will possibly know. Always take the advantage of opportunities to learn something new. It will bring new possibilities into your beliefs and your life. Most importantly, you can develop new beliefs by setting and visualizing goals for your life. Define your goals clearly. Then in your mind, see yourself achieving them in all of their sensory details. Mentally live the experience, see the sights, hear the sounds, smell the aroma, and feel the feelings. The beliefs formed in this way will lead you to their reality. Question: Which of the following statements is true? Options: A: You should try your best to help the negative people around you. B: You should try to achieve small success to believe in success first. C: The more knowledge you learn, the more you will control your life. D: You should stick to your own beliefs without changing.
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B