New efforts now aim to restore sawfish population.Beginning next month,an international agreement will provide protection for all seven of the world’s sawfish species.Scientists are hoping that it’s not too late to save the sawfish.
Until 1998,“this fish had never been formally studied in the United States,”says Tonya Wiley of the Mote Marine Laboratory in Sarasota,Fla.“We didn’t know such basic things as where they live,what habitat they use,how often they breed,how many young they have—even what age sawfish are when they begin breeding.”
Through historical studies and field research,scientists have become aware of how much the fish’s numbers have decreased.Today,there may be 90 percent fewer sawfish than there used to be.Wiley estimates that only 3,000 to 6,000 sawfish remain in US waters.Sawfish
1.
Size 2.
3.Body:Flat and winged Nose:Like a chainsaw
Ways to hunt for food Attacking fish with 4.
.
Drawing the injured victims with its mouth.
sawfish’s disappearance 6.
Sawfish’s snouts relates business.
Asians’ interest in eating fish.
Its 7.
and slowly which makes it hard to recover from overfishing.
8.
Only 10% sawfish left
【2014高考英语书面表达一轮训练(16)附参考范文】相关文章:
★ 贵州省贵阳市2014高考英语(新人教版)一轮阅读训练(13)附答案
★ (全国通用)2014届高考英语一轮单元复习 限时强化训练一
★ 2017高考四川省广安市英语阅读理解一轮系列训练:5(含解析)
★ 2017高考四川省广安市英语阅读理解一轮系列训练:13(含解析)
★ 贵州省贵阳市2014高考英语(新人教版)一轮阅读训练(6)附答案
★ 河南省三门峡市2014高考英语一轮(暑假)基础训练(1)附答案
★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (79)
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21