B

　　If you were looking for an animal to take the title of “most violent fish in the sea”， then the puffer fish(河豚) would have to be a strong competitor.Not only is it poisonous—though that doesn't stop people trying to eat it—and able to scare off other creatures in the sea by inflating itself to become much larger than normal, but also it chews on its own brothers and sisters when it is young.

　　Puffers attach their eggs to rocks near the bottom of the sea, often at the mouths of bays.Then the larvae(幼鱼)move to the wide part of the river once they have grown a little.Having put on more weight, they head for the sea.It's no childhood for the puffer fish, though, as Shin Oikawa and his colleagues found when they hatched puffer larvae in the lab and monitored them for two months.They found the larvae went through three step changes when they reached body weights of 0.002 grams, 0.01g and 0.1g.When a larva went through one of these changes, its behavior also changed.For instance, once a larva passed the first level it would grow its first teeth and could start attacking the larvae that had not reached that stage.Similarly, any larva that had reached the 0.01g or 0.1g levels would start attacking the larvae that hadn't.

　　The baby fish had a “relatively small mouth”， so rather than swallow their brothers and sisters whole, they would bite pieces out of them.Despite this limitation, the fish caused plenty of deaths.

【2017届高考英语牛津译林版选修10总复习限时训练 Unit3~4（江苏专用）】相关文章：

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (56)

★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ规范练：8（含解析）

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (72)

★ 2017届高考英语二轮复习大题冲关秘籍阅读理解七选五：解题策略（含解析）

★ （全国通用）2014届高考英语一轮单元复习 限时强化训练十二

★ 2017届高考英语二轮复习课时训练：2（含解析）

★ 2014高考英语（新人教版）一轮基础训练（1）A、B卷（附答案或解析）

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (2)

★ 2017届高考英语二轮复习大题冲关秘籍语法填空：考纲解读（含解析）

★ 2014年牛津译林版高中英语总复习（第1轮）同步练习 M10《Unit 1　Building the future》