年 6 月大学英语六级考试真题(第 3 套) Part Ⅰ Writing (30 minutes) Directions: Directions: Suppose you are asked to give advice on whether to major in science or humanities at college, write an essay to state your opinion. You are required to write at least 150 words but no more than 200 words. Part Ⅱ Listening Comprehension (30 minutes) 阐明： 年 6 月大学英语六级真题全国共考了两套听力本套（即第三套）旳听力材料与第一套完全同样，只是选项旳次序不一样而已，故本套不再反复给出 Part III Reading Comprehension (40 minutes) Section A Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once. Questions 26 to 35 are based on the following passage. Half of your brain stays alert and prepared for danger when you sleep in a new place, a study has revealed. This phenomenon is often 26 to as the “first-night-effect”. Researchers from Brown University found that a network in the left hemisphere of the brain “remained more active” than the network in the right side of the brain. Playing sounds into the right ears (stimulating the left hemisphere) of 27 was more likely to wake them up than if the noises were played into their left ear. It was 28 observed that the left side of the brain was more active during deep sleep. When the researchers repeated the laboratory experiment on the second and third nights they found the left hemisphere could not be stimulated in the same way during deep sleep. The researchers explained that the study demonstrated when we are in a 29 environment the brain partly remains alert so that humans can defend themselves against any 30 danger. The researchers believe this is the first time that the “first-night-effect” of different brain states has been 31 in humans. It isn‟t, however, the first time it has ever been seen. Some animal 32 also display this phenomenon. For example, dolphins, as well as other 33 animals, shut down one hemisphere of the brain when they go to sleep. A previous study noted that dolphins always 34 control their breathing. Without keeping the brain active while sleeping, they would probably drown. But, as the human study suggest, another reason for dolphins keeping their eyes open during sleep is that they can look out for 35 while asleep. It also keeps their physiological processes working. A) classified B) consciously C) dramatically D) exotic E) identified F) inherent G) marine H) novel I) potential J) predators K) referred L) species M) specifically N) varieties O) volunteersSection B Directions: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once.Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2. Elite Math Competitions Struggle to Diversify Their Talent Pool [A] Interest in elite high school math competitions has grown in recent years, and in light of last summer‟s U.S. win at the International Math Olympiad (IMO)---the first for an American team in more than two decades—the trend is likely to continue. [B] But will such contests, which are overwhelmingly dominated by Asian and white students from middle-class and affluent families, become any more diverse? Many social and cultural factors play roles in determining which promising students get on the path toward international math recognition. But efforts are in place to expose more black, Hispanic, and low-income students to advanced math, in the hope that the demographic pool of high-level contenders will eventually begin to shift and become less exclusive. [C] “The challenge is if certain types of people are doing something, it‟s difficult for other people to break into it,” said Po-Shen Loh, the head coach of last year‟s winning U.S. Math Olympiad team. Participation grows through friends and networks and if “you realize that‟s how they‟re growing, you can start to take action” and bring in other students, he said. [D] Most of the training for advanced-math competitions happens outside the confines of the normal school day. Students attend after-school clubs, summer camps, online forums and classes, and university-based “math circles”, to prepare for the competitions. [E] One of the largest feeders for high school math competitions—including those that eventually lead to the IMO—is a middle school program called Math Counts. About 100,000 students around the country participate in the program‟s competition series, 。