广东省华南师大附中2015届高三考前热身（三模） 英语试题（Word版）
I．语言知识及应用（共两节，满分45分）
第一节 阅读下面短文，掌握其大意，然后从1~15各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
Sharks have lived in the oceans for over 450 million years, long before dinosaurs appeared. There are now about 360 1 of sharks, whose size, behavior, and other characteristics differ widely.
Every year, we catch and kill over 100 million sharks, 2 for food and for their fins. Dried shark fins are used to make shark fin soup, which sells for as much as $50 a bowl in fine Hong Kong 3 . Other sharks are killed for sport and out of fear. Sharks are vulnerable(脆弱的) to overfishing because it 4 most species 10 to 15 years to begin reproducing and they produce only a few offspring.
5 by movies and popular novels, most people see sharks as people-eating monsters. This is far from the 6 . Every year, a few types of shark injure about 100 people worldwide and kill about 25. Most 7 are by great white sharks, which often feed on sea lions and other marine mammals. They sometimes mistake human swimmers for their normal prey, 8 if they are wearing black wet suits.
If you are a typical ocean-goer, your 9 of being killed by an unprovoked （无缘无故的）attack by a shark are about 1 in 100 million. You are more 10 to be killed by a pig than a shark and thousands of times more likely to get killed when you drive a car.
Sharks help 11 human lives. In addition to providing people with food, they are helping us learn how to 12 cancer, bacteria, and viruses. Sharks are very healthy and have aging processes similar to ours. Their highly effective immune system 13 wounds to heal quickly without becoming infected, and their blood is being studied in connection with AIDS research.
Sharks are among the few animals in the world that almost 14 get cancer and eye cataracts. Understanding why can help us improve human 15 . Chemicals extracted from shark cartilage have killed cancerous tumors in laboratory animals.
1. A. species B. classes C. groups D. names
2. A. greatly B. popularly C. widely D. mostly
3. A. supermarkets B. restaurants C. offices D. companies
4. A. spends B. takes C. costs D. uses
5. A. Impressed B. Moved C. Changed D. Influenced
6. A. story B. truth C. movie D. problem
7. A. injuries B. deaths C. attacks D. causes
