【高三英语试题精选】定州中学2018届高三英语(高补班)上学期开学试题(含解析)

定州中学2018届高三英语（高补班）上学期开学试题（含
解析）
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河北定州中学dog shark to the 18-metre long whale shark — the world’s biggest fish The whale shark, like two other large shark species —the basking shark and the megamouth shark —are harmless to people because they feed on plants and small aquatic animals
Sharks have extremely sensitive sense organs Some sharks can detect the scent(气味) of decaying fish or blood even when it is diluted(稀释) to only one part per million parts of seawater They can probably hear underwater sounds that originate as far as 3 kilometers away and can tell the direction from which underwater sounds are ing
Sharks are key predators(肉食动物) in the world’s oceans, helping control the numbers of many other ocean predators Without sharks, the oceans would be overcrowded with dead and dying fish
Every year, we catch and kill over 100 million sharks, mostly for food and for their fins Dried shark fins are used to make shark fin soup, which makes a profit for the sellers Other sharks are killed for sport and out of fear Sharks are vulnerable to overfishing because it takes most species 10 to 1ears to begin reproducing and they produce only a feoffspring Influenced by movies and popular novels, most people see sharks as people-eating monsters This is far from the truth Every year, a fetypes of sharks injure about 100 people worldwide and kill about 25 Most attacks are by great white。