慢速英语:Europe Considers Fracking to Cut Dependence on Russian Gas

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短语讲解：

1. Some nations are looking at new ways to recover natural gas at home, these methods include a disputed process known as hydraulic fracturing or fracking.

look at 看; 评判
例句：Look at our verse today.
看我们今天的章节。

2. Poland, Britain and Romania are expected to start exploration by 2020.

be expected to 被期待做某事; 有望做某事; 期许
例句：That could hardly be expected to last.
这很难预计将持续多久。

3. Most drilling areas in Europe are near populated areas and environmental groups have raised concerns about water and air pollution from fracking.

concern about 使（自己）关心…
例句：There is a lot of concern about political transition.
人们对它的权力交接交接有很多担忧。

4. Now Russia has signaled it may cut off gas to Ukraine, and to much of Europe.
 
cut off 切除; 切[隔]断
例句：All bail-out funds would be cut off.
所有的救济资金将被切断。