03-珊瑚
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专题03时文阅读理解-天气与气候主题语境—人与自然—气候变化威胁到珊瑚—珊瑚礁自己已恢复。
重点单词:took steps to采取措施做……;abundance大量,充足;1.Though they may not know it, about half a billion people depend on the ecosystems created and sustained by corals. And with climate change threatening coral’s survival, marine scientist Enric Sala had a goal that might have seemed impossible.“We wanted to get into a time machine, go back hundreds of years and actually see a coral reef like they used to be everywhere, before we started exploiting, polluting and killing them,” Sala said.The goal was made possible during an expedition Sala led in 2009. The team traveled to a corner of the South Pacific Ocean, to see if the almost untouched reefs held any clues to bringing damaged reefs in other parts of the ocean back to health.“The bottom was covered by thriving coral. Vivid colors surrounded me-purples, reds, oranges, yellows and greens. It was so beautiful,” Sala said.His team presented their findings to officials in the island country of Kiribati. The government took steps to protect the waters from fishing. But between 2015 and 2016, record levels of ocean warming damaged half the coral reefs the team had been studying.After hearing that news, they lost hope for the health of coral reefs. Last year, they went in for another dive. Despite the reported conditions, the reef had somehow restored itself, filled with life and color once more. Sala and his team were overjoyed. This is something that Sala says can be owed to two key factors.The first is, thankfully, half of the corals had not died. Despite the rise in temperatures, there were enough surviving corals left behind to help reproduce the reefs. The second was the Kiribati government’s decision to fully protect those waters.“It has an abundance of fish. S o they were eating all the algae (藻类) that would cover the dead corals, and make it impossible for the corals to come back, which is what happens in other places like the Caribbean,” Sala explained.1.What seemingly impossible goal does Sala have?A.Educating the public to protect the ecosystems.B.Calling on people to actively respond to climate change.C.Going to old days when corals were in healthy condition.D.Leading an expedition to the South Pacific Ocean.2.What does the underlined word “This” in paragraph 6 refer to?A.The bad news. B.The second diving.C.The reef’s restoration.D.The cheerful mood.3.What can we infer about Caribbean from Sala’s words?A.There is abundant fish in its ocean.B.Algae lie thick over corals there.C.Global warming does little harm to its marine life.D.Corals come back to life thanks to government’s efforts.4.What is the best title for the text?A.Kiribati—A Country of Biodiversity B.A Scientist’s Love for DivingC.The Coral Reef Restored Itself D.Ocean Warming Bothered Government【答案】1.C 2.C 3.A 4.C【导语】这是一篇新闻报道,主要介绍了随着气候变化威胁到珊瑚的生存,海洋科学家Sala有了一个看似不可能的目标,他想和自己的团队回到过去看到原本的珊瑚礁的样子。
珊瑚是动物还是植物等作者:来源:《东方少年·阅读写作版》2009年第03期珊瑚是动物还是植物珊瑚珍贵而又美丽,可是,我们应该把它归为动物类,还是植物类呢?论长相,珊瑚跟树枝的形状很像。
以前,人们认为它是一种海底的植物,但是后来,人们经过研究才发现,珊瑚原来是动物,它是珊瑚虫肉体腐烂清除后所剩的骨骼。
所谓“珊瑚虫”,其实就是珊瑚单独的个体。
它是一种低等的腔肠动物,样子好像一个双层口袋。
它只有一个口,口的周围生了许多触手。
由于多数的珊瑚都可以“出芽生殖”,而这些芽也不会离开母体,时间久了就形成一个相连且成树枝状的共同体。
海底的珊瑚礁大多就是由这些骨骼堆积而成的。
珊瑚色泽鲜艳,种类很多,其中以红色的珊瑚最为珍贵。
蜂巢的形状为什么是六边形蜂巢是令人惊叹的天然建筑物,它由一个个六角形的房间组成,蜜蜂在里面哺育幼虫,贮藏蜂蜜。
可是你知道蜂巢为什么是六角形吗?蜜蜂是天才的建筑师,它们的建筑理念就是使用最少的材料制作尽可能宽敞的空间。
而在这些形状中,六角形最符合这个要求。
因为,如果蜂巢呈圆形或八角形,就会出现空隙,要是三角形或四角形,则面积会减小。
所以这种六角形的效果是最好的,人们把它叫做蜂窝结构。
香甜的蜂蜜被存放在里面,完全不用担心会流出来。
人类从蜂巢的结构得到启示,把它应用在飞机的羽翼和人造卫星的机壳上。
蜂巢不仅坚固、实用、美观,而且还有很高的药用价值,对治疗鼻炎有很好的疗效。
猴子的屁股为什么是红色的关于猴子的屁股为什么是红的,流传着许多有趣的传说。
有的说猴子的屁股是被火热的瓦片烫红的,有的说猴子的屁股是被火球烧红的。
但这些毕竟都是传说,没有科学依据。
那么,为什么猴子的屁股是红红的呢?原来,猴子的身体和人类一样,布满了血管,血液通过血管流到身体的不同部位。
猴子的屁股上没有长毛,所以这里的血管非常丰富,血液的颜色便透过皮肤呈现出来,于是猴子的屁股看起来就是红色的。
远远的看去,还真会误以为猴子的屁股是被烫伤的呢!鹦鹉也能见风使舵吗人们喜欢把鹦鹉说话叫做“鹦鹉学舌”,意思是说,鹦鹉并不是真的在说话,只是在模仿人类的声音而已,它们根本就不知道“客人来了”、“你好吗”是什么意思,当然也没有去迎合别人的想法了。