61．What was a new use for wind power in the late l9th century?
(A)．Sailing a boat.
(B)．Producing electricity.
(C)．Grinding wheat into flour.
(D)．Pumping water from underground.

57．How does Mr. Cool manage to travel the Information Highway so fast? (A)．By storing fewer files. (B)．By repairing the system. (C)．B)y buying a better computer. (D)．By using a broad-band connection.

58．What can be learned from Passenger 2? (A)．There will be a book show at Grayson Hall (B)．Friedman is now studying the Great Barrier Reef. (C)．There will be a talk on global warming this week. (D)．Friedman is a leading expert on computer science.

59．Passenger 2 is most probably . (A)．a poster about a lecture (B)．an ad for a new book (C)．a note to a doctor in a university (D)．an introduction to a professor

60．Think about the different ways that people use the wind. You can use it to fly a kite or to sail a boat. Wind is one of our cleanest and richest power sources（来源）, as well as one of the oldest. Evidence shows that windmills（风车）began to be used in ancient Iran back in the seventh century BC. They were first introduced to Europe during the 1100s, when armies returned from the Middle East with knowledge of using wind power. For many centuries, people used windmills to grind（磨碎）wheat into flour or pump water from deep underground when electricity was discovered in the late 1800s, people living in remote areas began to use them to produce electricity. This allowed them to have electric lights and radio. However, by the 1940s when electricity was available to people in almost all areas of the United States, windmills were rarely used. During the 1970s, people started becoming concerned about the pollution that is created when coal and gas are burned to produce electricity. People also realized that the supply of coal and gas would not last forever. Then, wind was rediscovered, though it means higher coasts. Today, there is a global movement to supply more and more of our electricity through the use of wind. From the text we know that windmills ________. (A)．were invented by European armies (B)．have a history of more than 2,800 years (C)．used to supply power to radio in remote areas (D)．have rarely been used since electricity was discovered

62．One of the reasons wind was rediscovered in the 1970s is that _______. (A)．wind power is cleaner (B)．it is one of the oldest power sources (C)．it was cheaper to create energy from wind (D)．the supply of coal and gas failed to meet needs

63．What would the author probably discuss in the paragraph that follows? (A)．The advantages of wind power. (B)．The design of wind power plants. (C)．The worldwide movement to save energy. (D)．The global trend towards producing power from wind.

64．They are the sort of friends who are so close they trust each other with their lives. If one falls the other is there to catch him. They are Wellman, whose legs were permanently injured nine years ago in a rock-climbing accident. and Corbett, an experienced rock climber. Together, they climbed up Half Dome, the famous 2,000-foot rock in the Yosemite National Park, through one of the most difficult routes.(路线) During the climb, Corbett took the lead, hit in the metal spikes（尖状物）that guided the ropes and climbed up. Then, after Wellman pulled himself up the rope, Corbett went down to remove the spikes and climbed up again. This process was repeated time and again, inch by inch, for 13 days. Wellman’s job was not easy either. He got himself up the rope through upper body strength alone. In all, Wellman figured that he had done 5,000 pull-ups up the rope on the climb. However, when the two men first met, they never talked about climbing. “he knew that was how I got injured.” Wellman said. Until one day Wellman decided that he wanted to climb again and they started training. Their climb of Half Dome was not all smooth. At one point, pieces of rock gave way, and Corbett dropped down quickly. Wellman locked their rope in place, stopping the fall at 20 feet. His quick action probably saved his friend’s life. “Your partner can save your life --- you can save your partner’s life,” Wellman said as the pair received congratulations from friends. “There are real close ties.” Which of the following was a challenge for Corbett in climbing Half Dome? (A)．To climb up to remove the spikes. (B)．To climb it twice. (C)．To do 5,000 pull-ups up the rope. (D)．To lock the rope in place.

65．Why did the two men never talk about climbing when they first met? (A)．Corbett was poorly trained. (B)．Wellman had lost interest in climbing. (C)．Corbett didn’t want to hurt Wellman. (D)．Wellman hadn’t decided whether to climb again.

66．What do we know about Wellman? (A)．He climbed Half Dome by himself. (B)．He was disabled in a traffic accident. (C)．He stopped rock-climbing for some time. (D)．He was saved by Corbett during the climb.

67．The main idea of the text is that______. (A)．two heads are better than one (B)．friendship is precious in life (C)．the disabled should never give up (D)．a man can be destroyed but cannot be defeated