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听力部分一直以来都是同学们考试时的难点，也是吐槽最多的部分。暑期想要早点为下半年的四六级考试做准备就来四六级考试网练习一下英语四级听力题吧，考虑四级听力的特点，我们特别准备了VOA的慢速听力材料哦。
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听力音频点击下载.mp3
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听力材料：
Great Barrier Reef Choking on Pollutants
Attempts to protect the Great Barrier Reef arefailing. A report released Monday by the governmentin Australia says water quality in the Great BarrierReef is far below what it should be.
The report assessed the condition of the reefbetween 2009 and 2014. It showed that pesticide and pollution have decreased, but notenough to reach environmental targets.
Sediment and chemicals can weaken coral, hurting its ability to feed and grow. Coral are liveanimals that take root in the ocean floor, but they are not plants. Reefs are the hard skeletonsleft at the bottom of the sea by small marine creatures called polyps. The polyps then form thelarger structure of a reef.
Corals also are some of the most diverse ecosystems on the entire planet. They can make ahome for invertebrates, crustaceans, fish, and sea snakes to name a few.
Steve Miles is Queensland's environment minister. He says the research shows the reef needsmore protection.
"Over that five-year period, we did see some progress towards our targets. Sediment is down12 percent and pesticides loads are down 30 percent. But what is most disturbing is theseresults are far from our targets. Progress towards these targets flat-lined in the period 2013-2014. If one of my kids came home with a report card like this, I would be a bit disappointed.There is more bad news here than good news."
The report also found that fewer than one-third of Queensland's sugar plantations usedtechniques to reduce the use of pesticides.
Only 28 percent of land managers -- known as graziers -- managed their land properly. Theyhad reduced harmful water runoff to safeguard the health of the reef. The official target is a 90percent reduction in pesticide use within three years.
Farmers' say they are going to use more sustainable practices as soon as possible.
1.choke 噎住;窒息;堵塞
Be aware that the infant will cough, sputter, andchoke during feedings.
注意小儿在吃奶时会咳嗽，喷溅或呛噎。
2.coral 珊瑚;珊瑚虫
In northern Sulawesi, citizens have cleared coral reefs of harmful invasive species.
在北苏拉威西岛，居民们已清理了有害的蔓延类珊瑚礁。
3.pesticide 杀虫剂;农药
He needs a pesticide that will kill corn borers.
他需要一种能消灭玉米螟虫的杀虫剂。
4.Sediment 沉积物;泥沙
Rivers and torrents carried great loads of sediment out to sea.
河流挟着大量沉积物奔流入海。 |
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发表于 2016-7-28 21:09:30