资料:The federal government on Wednesday recommended an endangered-species listing for the loggerhead turtles in U.S. Waters, a decision that could lead to tighter restrictions on fishing and other maritime trades.Environmental groups who’ d been pushing an endangered listing said the proposal was a “turning point”they hope will lead to greater turtle protections.
“I think it’ s huge day for loggerhead sea turtles, ”said Beth Riff, a marine wildlife scientist at Oceana.“it really draws attention to the fact these turtles are not doing well and more needs to be done to protect them.”With all that attention to paid to them, you’d think these creatures would at least have the gratitude not to go extinct, but Nature is indifferent to human notions of fairness.No one really knows how many loggerhead there are, or how many are being killed by fishing gear or other activities. Riff cites a 40 percent drop in the number of nesting females in Florida over the last decade as evidence of trouble.
Loggerheads are named for their large heads, which contain potent jaws that can crush the hard shells of prey such as conch. The turtles are about the size of a fist when they hatch and make a frenzied dash to the surf. But they typically grow to more than three feet in length and 250 pounds. The animal can log thousands of miles as it travels across oceans.
Barbara Schoder,national sea turtle coordinator for NOAA’s fisheries division, said the biggest threats to the North Pacific loggerhead include damage to primary nesting sites, which are mainly in Japan,as well as accidental snaring of the turtles in fishing gear. Andrea Tee of San Francisco-based Center for Biological Diversity said the turtles get hooked by Hawaiian longline fishermen targeting swordfish and tuna and can be injured or drowned. On the East Coast, the main threat to turtles is gear from the region’s various fishenes Schoder said.
A primary benefit of the endangered status would be increased public pressure on protecting the species, Riff said. But the government would also have to determine“critical habitats,”such as where the turtles reproduce or forage. Such places could be subject to additional protections for the turtles, including restrictions on maritime development or fishing.
Like every other environmental issue today, this is playing out against the background of global warming and human interference with natural ecosystems, The narrow strips of beach on which the turtles lay their eggs are being squeezed on one side by development and on the other by threat of rising sea levels as the oceans warm. Ultimately we must get a handle on those issues as well, or a creature that outlived the dinosaurs will meet its end at the hands of humans, leaving our descendants to wonder how creature so ugly could have won so much affection.
The last sentence of the passage is meant to ( ).
本题考查的是推理判断。
【关键词】last paragraph;meant to
【主题句】最后一段Like every other environmental issue today,this is playing out against the background of global warming and human interference with natural ecosystems,The narrow strips of beach on which the turtles lay their eggs are being squeezed on one side by development and on the other by threat of rising sea levels as the oceans warm.Ultimately we must get a handle on those issues as well,or a creature that outlived the dinosaurs will meet its end at the hands of humans,leaving our descendants to wonder how creature so ugly could have won so much affection.就像现在的所有环境问题一样,全球变暖和人类对自然生态系统的干涉这一背景带来了灾难,蠵龟产卵的狭窄沙滩正在日益缩减,原因一方面是人类发展占地,另一方面是海洋变暖海平面上升带来的威胁。最终我们同样必须着手解决这些问题,否则蠵龟这个比恐龙在地球上生存得更久的生物将在我们人类手中走到终点。留下我们的子孙后代只能疑惑,如此丑陋的生物怎么会有如此大的影响。
【解析】本题的问题是“最后一段的意义是_______”。选项A意为“告诫我们的后代关于物种的灭绝”;选项B意为“呼吁采取有效措施确保海龟的生存”;选项C意为“让人类对乌龟表现出更多的感情”;选项D意为“强调即使是最丑陋的物种也应受到保护”。根据主题句可知,作者一直在呼吁保护蠵龟,防止其灭绝。B选项“提倡实施有效措施确保蠵龟的生存”正确。
下列关于公司的表述,正确的是()
以下各项列举了我国常见气象灾害与其发生地区的对应关系,其中正确的一项是()
根据电视收视率调査,看体育节目的观众中青年人比中老年人要多。
由此可推断出()
—种海洋蜗牛产生的毒素含有多种蛋白,把其中的一种给老鼠注射后,会使有两星期大或更小的老鼠陷入睡眠状态,而使大一点的老鼠躲藏起来。当老鼠受到突然的严重威胁时,非常小的那些老鼠的反应是呆住,而较大的那些老鼠会逃跑。
以上陈述的事实最有力地支持了以下哪项假说?()










疾病控制中心对某校髙中三个年级的学生进行抽样做视力状况调查,抽样的方法为分层抽样(按比例抽样),若高中一、二、三年级学生人数分别为626、703、780,样本容量为84,则应从离二年级抽样的学生人数为多少?()