This causes bleaching. Under stress, the corals expel symbiotic which lives in their tissues and gives them their colour and energy.

1、

Over the years, there have been many attempts to revive coral reefs, some more successful than others.

多年来，人们曾多次试着让珊瑚礁恢复生机，但结果却成败参半。

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2、

Scientists analysed data on more than 48000 marine species, including fish, molluscs, birds and corals.

科学家们分析了超过48000种海洋物种的数据，包括鱼类、软体动物、鸟类和珊瑚。

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3、

They say its coral has been under a sustained attack by warmer seas driven by climate change.

研究人员们说，由于气候变化导致的海水升温，大堡礁的珊瑚受到了持续攻击。

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4、

And rats, scientists found, dramatically reduce the health of a coral reef surrounding an infested3 island.

科学家们发现，在有大批老鼠出没的岛屿周围，其珊瑚礁的健康状况急剧下降。

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5、

But for fixed4 species, like corals, moving is not an option.

但对于珊瑚这样固定不动的物种来说，移动并不可行。

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6、

Marine life may be affected too ： El Ninos can reduce the rising of the cold, nutrient-rich water that supports large fish populations, and the unusually warm ocean temperatures can destroy coral.

海洋生物也可能受到影响：厄尔尼诺现象会减少大量鱼类种群赖以生存的营养丰富的冷水的上升,异常温暖的海洋温度也会破坏珊瑚。

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7、

Warming waters are known to contribute to coral bleaching and they take up more space than cooler waters, raising sea levels.

众所周知，温热的海水是导致珊瑚白化的原因，且它比凉爽的海水占据了更多的空间，会让海平面上升。

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8、

It is home to one of the world's finest marine ecosystems, with more than 1,300 species of fish and 700 species of coral.

作为世界上拥有最好的海洋生态系统的国家之一，这里有1，300多种鱼类和700多种珊瑚。

六级真题- 2017年 12月 2卷短文填空

9、

The sting of coral can be very painful.

珊瑚刺伤可引起剧痛。

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10、

The women have elaborate necklaces of turquoise and pink coral.

那些女人戴着由绿松石和粉色珊瑚制成的精美项链。

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11、

The island is encircled by a coral reef.

这个岛周围都是珊瑚礁。

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12、

When nitric acid is poured on copper, a Brown vapour gives off.

将硝酸倒在铜上，会散发出一种棕色的蒸气。

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13、

Although hit by the flood, they did not ask for a single copper from the state.

尽管遭了水灾，他们却没有向国家伸手要一分钱。

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14、

Copper is metal with high ductility.

铜是韧性很高的金属。

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15、

They produced Brass by the fusion of copper and zinc.

他们通过铜和锌的熔合来制造黄铜。

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16、

Chemical analysis revealed a high content of copper.

化学分析显示铜的含量很高。

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17、

Among the mineral deposits of the province, tin occupies first place; copper comes second.

该省矿藏，以锡最多，铜次之。

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18、

That little boy wonders why copper bends easily.

那个小男孩想知道铜为什么容易弯折。

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19、

Brass can be made by fusing copper and zinc.

通过熔合铜和锌可以得到黄铜。

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20、

Bronze is an alloy of copper and tin

青铜是铜和锡的合金。

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