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The Northern Pike is a very bad fish. It is a big, hungry fish, and eats little fish. Many Northern Pike live in Lake Davis. They are killing all the smaller fish in the lake. The Northern Pike area serious danger to the lake because they eat all the smaller fish. Soon, all other kinds of fish in the lake will be killed off. This is not healthy for the environment (环境).Researchers are afraid that the Northern Pike will swim out of Lake Davis through many smaller rivers that feed into the lake. They could spread all over the country and damage many other water environments. If that happens, it would be too late to stop the Northern Pike.For ten years, officials have been trying to remove the Northern Pike from Lake Davis. They have tried using nets and poisons (毒). However, the Northern Pike population is still doing well in Lake Davis. Many people do not like the idea of using poison to kill the fish. They worry that the poisons are bad for humans who use the water. However, people haven’t found any poisons at all in local (当地的) wells.Scientists are going to try the poison again. This time, they will dry off the lake before putting the poison in. A public hearing will be held to talk about the problem. A public hearing will be held because （）.
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Looking to improve your language skills, but you don’t have the time to go abroad to attend school More and more universities around the world are offering opportunities for students to get degrees online ( distance education) from the comfort of their own homes, and many of these colleges and universities are accredited (官方认可的), meaning that they have met certain standards of excellence.If you decide to take language courses online (or any subject for that matter), be sure there are advantages in studying online. Its costs are usually lower, and you can study at your own pace (节奏) and you can easily get the materials 24 hours a day from almost any computer in the world. However, you won’t get the human interaction (互动) of meeting people face to face, as you would if you were attending a school abroad in person.On the other band, the advantages of going abroad may include day-to-day chances to learn a new culture, to meet new friends with whom you can use and practice the language, and to see different parts of the world. However, there may be a number of disadvantages for some students, including high costs, time away from one’s school, family, or work life, and difficulty in getting used to anew culture and way of life.Whatever you do, consider a distance education program that meets your educational needs, is what you can afford, and equally important, provides you with chances to grow beyond the classroom through cultural and educational activities. The third paragraph mainly discusses the good and bad things about （）.
（55）处应填（）。
（52）处应填（）。
When mentioning Korea, people might come up with a string of things, such as kimchi (泡菜), cosmetics and beautiful girls. In fact, Korea is also famous for hand-made clothes. In Korea, you can get a suit that is well made to your measure within a couple of days but be careful about the size because Korean sizes are often a little small, especially to westerners. Even a "large" size T-shirt bought in Korea can be too small for an American! Korean clothes are made of various kinds of silk and other materials. You can also buy hand-made traditional clothes in Korea.Those traditional Korean clothes have quite a long history which can be found in ancient wall paintings or on tombs. "Hanbok" (韩服) can be the best representative of Korean culture. Today hanbok is still worn during formal occasions. Hanbok consists of two parts. "Jeogori" (赤古里), the top part, is blouse-like and has long sleeves. For the bottom part, women wear "Chima" (高腰背心裙), a kind of skirt, and men wear "Paji" (巴基) , bag-like trousers.White is the color for common people while during festivals or on special days, upper classes will wear clothes in bright colors to indicate their social status. Accessories like jewelry and headdresses complete traditional Korean clothes. Traditional Korean clothes favor soft flowing lines to hide the body’s shape representing the pursuit for beauty and elegance of Korean people. The designs of various forms of Hanbok represent the rich culture of Korea. Which statement is true about the first paragraph ？（）
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