Sharks are important for the worlds 14 They eat injured and diseased fish. Their hunting activities mean that the numbers of other fish in ocean waters do not become too 15 This protects the plants and other forms of life that exist in the oceans.

　　词汇:

　　purposely adv.故意地，蓄意地 　immune adj.免疫的

　　charge v.冲 jewelry n.珠宝

　　seal n. 海豹

　　注释：

　　1.It is hard to get people tO think of sharks as anything but a deadly enemy：要让人们相信鲨鱼不是死敌不是一件容易的事。anything but意为决不，远非，如：His performance in London is anything but a success.

　　2.these fish：这些鱼。fish单复数同形，如：0ne fish，two fish，many fish。

　　3.sport fishin9：捕鱼运动。

　　4.sense of smell：嗅觉

　　练习:

　　1. A attack　 B meet　 　C love　 D visit

　　2. A terrible B eatable　 　C valuable　 D possible

　　3. A source 　B existence　 C friends D fish

　　4. A Space 　 B Sky　 　C Land　 D Earth

　　5. A because 　B since　 C because of D by reason that

　　6. A whose 　 B which 　C that　 D where

　　7. A to 　B for　 　C like　 D with

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