题目内容
1.Dolphins are active and usually look for food at night.In the day,they like to rest in shallow bays(浅湾).Many people think the dolphins are awake during the day as they swim.But when they sleep they rest half of their brain and keep the other half awake to breathe,so they may be sleeping even when they're swimming in the water.
From 2010to 2013,spinner dolphins (飞旋海豚) of Hawaii's Big Island appeared to human activities more than 82percent of the time,according to Julian Tyne,a researcher at Australia's Murdoch University.
The National Oceanic and Atmospheric Administration (NOAA) says disturbing the animals in their near-shore habitat could force them to swim to less pleasant places where they may be attacked by sharks and other animals.
Moreover,when people are around,dolphins become more active.Thus,they can't get enough sleep."Disturbing their resting behaviors can actually affect their long term health and the health of the dolphin population."Ann Garrett of NOAA's National Marine Fisheries Service said.
As a result,the NOAA wants to make rules to help protect the dolphins.For example,people may not be allowed to swim with the Hawaii spinner dolphins.Or they may stop people from swimming in shallow bays when the dolphins are resting.Tour operators must also be taught to watch for signs to know when the dolphins are in their resting state.
29.Which of the following about dolphins is NOT true?C
A.They keep half of their brain awake while sleeping
B.They like to stay in shallow bays during the day
C.They spend most of their time sleeping at night
D.They may be sleeping even when they're swimming
30.When dolphins are disturbed in their near-shore habitat,theyD.
A.would swim to you
B.could likely sleep longer
C.could become less active
D.could move closer to danger
31.The writer of the article mainly wants toD.
A.introduce spinner dolphins
B.tell you different types of dolphins
C.ask you to swim with dolphins
D.advise you not to disturb dolphins.
分析 【文章大意】这篇文章介绍了海豚的生活习性,以及与人类的相处,作者建议人们应该要保护海豚,使其免受危害.
解答 29.C.细节理解题.根据文章第二段:Dolphins are active and usually look for food at night.可知海豚通常在晚上寻找食物,而不是睡觉.故选C.
30.D.细节理解题.根据文章第四段:The National Oceanic and Atmospheric Administration (NOAA) says disturbing the animals in their near-shore habitat could force them to swim to less pleasant places where they may be attacked by sharks and other animals.可知妨碍动物在近岸栖息可能迫使他们游向不好的地方,他们可能会遭受鲨鱼和其他动物的攻击.故选D.
31.D.主旨大意题.根据文章最后一段:As a result,the NOAA wants to make rules to help protect the dolphins.可知通过介绍制定规则保护海豚,作者主要建议人们不要打扰海豚.故选D.
点评 快速阅读全文,掌握文章大意,并认真阅读题目,把握好相应的文章细节,做出正确解答.
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