BBC news 2015-08-21 加文本

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短语讲解：

1. A report says scientist may have overestimated the level of carbon emissions in China over the past decade because of confusion about the type of coal being used there.

because of 由于
例句：All the planes were socked in yesterday because of the thick mist.
由于雾大，昨天所有的飞机都停飞了。

2. Emergency services have been dispatched to the scene and helicopters are flying over the city.

fly over 飞越
例句：They were the first two Englishmen to fly over the Atlantic.
他们是最先飞越大西洋的两个英国人。

3. Treasure hunting is a popular pastime in the waters around Florida, and this find turned up in just a meter of water closing to the shore.

turn up 出现; 翻起; 开大
例句：Do you want me to turn up the heat.
你要我把暖气调高吗？

4. Currently a dollar a day is used to feed each prisoner while the allowance for horses and dogs is twice of that.

be used to 习惯于，适用于
例句：A dynamo is used to generate electricity.
发电机用于发电。