题型:阅读理解 题类:常考题 难易度:普通
人教版(新课程标准)高中英语必修5 Unit 5同步练习四
With more and more people swimming at beaches every year, the problem of sharks (鲨鱼) takes on new importance. There are people who still insist that sharks never attack human beings unless they are bleeding or wounded, but this belief has not been clearly proved. In the past few years, on both the Atlantic and Pacific coasts, there have been cases of shark attacks which resulted in death. And just how many of the swimmers who have disappeared were victims of shark attacks will never be known. Clearly, these violent fish can be dangerous. Several species are known to attack human beings, and it is believed by some experts that certain sharks, once having tasted human blood, develop a taste for it.
The chances that one will come across a shark are small, but certain precautions should be taken by everyone. (A precaution is something you do in order to prevent something dangerous or unpleasant from happening.) Putting hands or legs over the side of a boat in warm waters is to be avoided. Swimming far out from beaches is inviting trouble. No swimmer should go great distances from shore alone, or go into the water when nobody else is about. Skin divers, particularly those who go deep down in the water or among rocks and ledges (暗礁) that serve as hiding places for sharks, are taking unnecessary risks.
If one is in a boat that is rubbed against by a shark, he should remember the creature is not trying to upset his boat; it is probably trying to rub off sea lice (海虱). A blow, especially on the nose, will drive it off. If a swimmer comes across a shark, he should swim away as quietly as possible, trying to avoid making it angry. He should also head for shore (岸) as quickly as possible.
CUSTOMER HEALTH: A GUIDE TO INTELLIGENT DECISIONS Eighth softcover edition of leading college text covering all aspects of basic health strategy (策略) for consumers. Includes much information on food fashion and “alternative methods”. Thoroughly referenced. By Stephen Barrett, M. D., William M. London, Ed. D., Robert S. Baratz, M. D., D. D. S., Ph. D., and Manfred Kroger, Ph. D. 608 pages, $23.00. |
CHIROPRACTIC (手疗法):THE GREATEST HOAX (骗局) OF THE CENTURY? L. A. Chotkowski, M. D., FACP, describes discoveries made during his half-century of medical practice. Includes reports of cases; the author's observations at New York Chiropractic College, a chiropractic office, and a chiropractic lecture; and details of critical reports in the media. Second edition, softcover, 208 pages, $15. |
THE WHOLE TOOTH The fundamental guide to protecting your dental health and your pocketbook. Covers preventive care, finding a good dentist, dental restoring, cosmetic dentistry, dental quackery (治疗) and fraud (假牙), and dental insurance programs, including managed care. By Marvin J. Schissel, D. D. S., and John E. Dodes, D. D. S. softcover, 284 pages, $10. |
QUACKERY AND YOU The 32-page softcover brochure with special viewpoints by William Jarvis, Ph. D., suitable for waiting rooms. $1. |
To above prices, please add $3 for first book and $1 for each additional book for postage & handling. Foreign countries add $5 per book. Send orders to Quackwatch, P. O. Box 1747, Allen Avenue, NY 18105. The checks must be in US dollars. We cannot process credit card orders. Please use our order form from Amazon.com and include your email address.
试题篮