Most people picture sharks【C1】huge, powerful, frightening【C2】rea

游客2024-10-20 23

问题 Most people picture sharks【C1】______huge, powerful, frightening【C2】______ready at any moments to use their sharp teeth to attack careless swimmers【C3】______provocation (挑衅). 【C4】______people may have some【C5】______ideas on the conception of sharks.
First, there are 350 species of shark, and【C6】______them are large. They range in size from the dwarf shark, which can be only 6 inches long and can be held in the【C7】______of the hand,【C8】______the whale shark, which can be more than 55 feet long.
Second, the different species of shark【C9】______tremendously in the number and type of teeth. A shark can have from one to seven sets of teeth【C10】______and some types of shark can have several hundred teeth in each jaw. It is true that the【C11】______and predatory species do possess extremely sharp and brutal teeth【C12】______their prey【C13】______Many other types of shark, however, have teeth more【C14】______to grabbing and holding than【C15】______cutting and slashing?
Finally, all sharks【C16】______predatory animals ready to【C17】______humans. In fact, only 12 of the 350 species of shark have been known to attack humans, and a shark needs to be【C18】______in order to attack. The types of shark that have the【C19】______record with humans are the tiger shark, the bull shark, and the great white shark. However, for most species of shark, even some of the largest types, there are no known【C20】______of attacks on humans? [br] 【C19】

选项 A、worst
B、best
C、first
D、most

答案 A

解析语义衔接题。本段讲到鲨鱼对人的攻击，前文提到不是所有的鲨鱼都随时准备好攻击人类，只有被激怒时才会发起攻击，其中攻击人类最多，记录最差的有三类鲨鱼，故用worst修饰记录，暗含“这三类鲨鱼是攻击人次数最多的”。

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