题目内容
A．Jogging is better than the other types of exercise.B．Heart disease is no longer an A
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Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： Jogging has become the most popular individual sport in America. It has become very usual to see people of all ages running along city streets, in parks and along special jogger's trails that have been built in some cities. Many theories have been advanced to explain the popularity of jogging. The plain truth is that jogging is a cheap, quick, and efficient way to maintain physical fitness.
The most useful sort of exercise is an exercise that develops the heart, lungs, and circulatory systems. If these systems are fit, the body is ready for almost any sport and for almost any sudden demand made by work or emergencies. One can. train more specifically, but running trains your heart and lungs to deliver oxygen more efficiently to all parts of your body. It is worth noting that this sort of exercise is the only kind that can reduce heart disease, the number one cause of death in America.
Only one sort of equipment is needed—a good pair of shoes. Physicians advise beginning joggers not to try to run in tennis shoes. No other special equipment is needed. You can jog in any clothing you desire, even your street clothes. Many joggers wear expensive warmup suits, but just as many wear a simple pair of gym shorts and a T-shirt.
(27)
The Grand Canyon, carved by the Colorado river, in northwestern ______ is one of nature's
The 18th century Witnessed a new literary form--the modem English novel, which is contrary
A vast health checkup is now being conducted in the western Swedish province of Farmland with the use of an automated apparatus for high-speed multiple-blood analyses. Developed by two brothers, the apparatus can process more than 4,000 blood samples a day, subjecting each to 10 or more tests. Automation has cut the cost of the analyses by about 90 percent.
The results so far have been astonishing, for hundreds of Swedes have learned that they have silent symptoms of disorders that neither they nor their physicians were aware of. Among them were iron-deficiency anemia, hypercholesterolemia, hypertension and diabetes.
The automated blood analysis apparatus was developed by Dr. Gunnar Lungner, 49 year-old associate professor of clinical chemistry at Goteborg University, and his borther, Ingmar, 39, the physician in charge of the chemical central laboratory of Stockholm's Hospital for Infectious Diseases. The idea was conceived 15 years ago when Dr. Gunnar Jungner was working as clinical chemist in northern Sweden and was asked by local physician to devise a way of performing multiple analyses on a single blood sample. The design was ready in 1961. Consisting of calorimeters, pumps and other components, many of them American-made, the Jungner apparatus was set up here in Stockholm. Samples from Farmland Province are drawn into the automated system at 90 second intervals. The findings clatter forth in the form. of number printed by an automatic typewriter.
The Jungners predict that advance knowledge about a person's potential ailments by the chemical screening process will result in considerable savings in hospital and other medical costs. Thus, they point out, the blood analyses will actually turn out to cost nothing. In the beginning, the automated blood analyses ran into considerable opposition from some physicians who had no faith in machines and saw no need for so many tests. Some laboratory technicians who saw their jobs threatened also protested. But the opposition is said to be waning.(317)
The author's attitude towards automation is that of ______.
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