单选题 Questions 22 ～ 25 are based on the following passage.

单选题{{B}}Text 3{{/B}} Most people dislike rattlesnakes. Years ago people commonly believed that these and other snakes had the power to cast a spell on people. Some people become almost terrified at the thought of even seeing a rattler. Even the lover of the outdoors is compelled to. look out for these creatures. However, a few sensible precautions decrease the chances of being struck by any poisonous snake. Rattlers come in a variety of sizes—from about two feet in length to over six feet. At the end of the rattler' s tail it is a set of rings. These make up the rattle. When the snake is alarmed, the tail shakes, causing a warning noise to be transmitted a considerable distance. Rattlers may be found in nearly all states and in some Canadian provinces. However, most of them arc more at home in dry places, such as the western United States and Mexico. Rocky, isolated areas are favorite places for rattlers to lodge. They may be seen mornings and evenings sunning on rocky ledges. In the heat of the day they seek out a shelter from the sun under rocks or in holes. The rattlesnake is in some ways a friend to humans. This statement contradicts some common views of these creatures. The harmful poisonous fluid released in a rattler' s bite kills small animals—and may kill or cause sickness in people. However, rattlers are competitors with owls and hawks for mice and rats. Many of these pests have been the losers in a clash with a rattlesnake in its quest for food. Thus the rattler helps control the numbers of mice and rats. How can you avoid a rattlesnake bite.'? A few principles have been given by experienced people of the outdoors. First, do not run through high grass in rattlesnake country. You might surprise a snake that is otherwise minding its own business. A slow walk insures ample time for the snake to slide away or proclaim its presence. Although these snakes are very mobile, they will not chase you. If you hear a rattle, back up and walk away slowly. Do not run ! The snake may have a friend or relative in the area who would resent being stepped on as you dash away. Second, consider your wearing apparel, particularly footwear. Snake fangs have occasionally pierced thick, western boots. However, such footwear offers much more protection than the usual shoes. Finally, when chimbing, look before you reach or step. Rattlers like to lie on rocky ledges. Although you intended to grab a rock rather than a rattler, the surprised snake may not understand.

单选题The word "lucrative” in line 1 is closest in meaning to______. [A]expanding [C]influential [B]promising [D]profitable

单选题[此试题无题干]

单选题Directions: You will hear 10 short dialogues. For each dialogue, there is one question and four possible answers. Choose the correct answer—A, B, C or D, and mark it in your test booklet. You will have 15 seconds to answer the question and you will hear each dialogue ONLY ONCE.

单选题Questions 11-14 are based on the following dialogue:

单选题According to this passage, Valentine's Day is______.

单选题What do people think of the suggestion of using nuclear weapons to alter the course of asteroids?

单选题{{I}}Questions 18-21 are based on the following dialogue.{{/I}}

单选题What can we say of Peter Senior?

单选题What is the man probably going to do after graduation?

单选题{{B}}Part A{{/B}} {{I}} You will hear 10 short dialogues, For each dialogue, there is one question and four possible answers. Choose the correct answer—A, B, C or D, and mark it in your test booklet. You will have 15 seconds to answer the question and you will hear each dialogue ONLY ONCE. Now look at Question 1.{{/I}}

单选题

单选题Psychologist George Spilich and colleagues at Washington College in Chestertown, Maryland, decided to find out whether, as many smokers say, smoking helps them to "think and concentrate". Spilich put young non-smokers, active smokers and smokers deprived (被剥夺) of cigarettes through a series of tests. In the first test, each subject (实验对象) sat before a computer screen and pressed a key as soon as he or she recognized a target letter among a grouping of 96. In this simple test, smokers, deprived smokers and non-smokers performed equally well. The next test was more complex, requiring all to scan sequences of 20 identical letters and respond the. instant one of the letters was transformed into a different one. Non-smokers were faster, but under the stimulation of nicotine (尼古丁) , active smokers were faster than deprived smokers. In the third test of short-term memory, non-smokers made the fewest errors, but deprived smokers committed fewer errors than active smokers. The fourth test required people to read a passage, then answer questions about it. Non-smokers remembered 19 percent more of the most important information than active smokers, and deprived smokers bested those who had smoked a cigarette just before testing. Active smokers tended not only to have poorer memories but also had trouble separating important information from insignificant details. "As our tests became more complex," sums up Spilich, "non-smokers performed better than smokers by wider and wider margins." He predicts, "smokers might perform adequately at many jobs-until they got complicated. A smoking airline pilot could fly adequately if no problems arose, but if something went wrong, smoking might damage his mental capacity."

单选题You will hear 4 short dialogues. For each dialogue, there is one question and four possible answers. Choose the correct answer—A, B, C, or D. You will hear each dialogue ONLY ONCE.

单选题Questions 11-13 are based on the following dialogue．

单选题Directions: Read the following text. Choose the best word or phrase for each numbered blank and mark A, B, C or D on ANSWER SHEET 1. Rhythm and blues, or R&B, is a {{U}} {{U}} 1 {{/U}} {{/U}}of music that came out of the jazz, blues and gospel music that was being {{U}} {{U}} 2 {{/U}} {{/U}}by African Americans {{U}} {{U}} 3 {{/U}} {{/U}}the 1930s and 1940s. Over the years, the term has commonly been used to describe {{U}} {{U}} 4 {{/U}} {{/U}}popular music this community was played at the time. This more upbeat, exciting type of music caught on {{U}} {{U}} 5 {{/U}} {{/U}}a big way, and for the first time, African Americans {{U}} {{U}} 6 {{/U}} {{/U}}their own style of commercial music. In the late 1930s, many big bands broke up {{U}} {{U}} 7 {{/U}} {{/U}}smaller units and formed "jump blues" bands {{U}} {{U}} 8 {{/U}} {{/U}}played loud music with a strong dance beat, quickly {{U}} {{U}} 9 {{/U}} {{/U}}popular in the dance halls at the time. Early R&B {{U}} {{U}} 10 {{/U}} {{/U}}were those of Count Basle, Louis Jordan and Lionel Hampton. Basie had a hit in 1937 with One O'clock Jump, {{U}} {{U}} 11 {{/U}} {{/U}}Jordan bad a string of hits from the late 1930s through the 1940s. By the mid 1940s, R.M. Blues by Roy Milton and The Honeydripper by Joe Liggin each {{U}} {{U}} 12 {{/U}} {{/U}}one million copies. The new music style {{U}} {{U}} 13 {{/U}} {{/U}}to evolve and was gaining {{U}} {{U}} 14 {{/U}} {{/U}}rapidly. In Annapolis, more than 50,000 people {{U}} {{U}} 15 {{/U}} {{/U}}up to a concert with seating for 8,000. There was a traffic {{U}} {{U}} 16 {{/U}} {{/U}}for seven hours. Rhythm and blues has come a long way {{U}} {{U}} 17 {{/U}} {{/U}}American African musicians of the mid 20th century developed their own style of {{U}} {{U}} 18 {{/U}} {{/U}}music based on some more conservative styles at the time. R&B had huge success in the 1950s and 1960s before making an even {{U}} {{U}} 19 {{/U}} {{/U}}comeback as contemporary R&B {{U}} {{U}} 20 {{/U}} {{/U}}the 1980s on.