VOA慢速英语:US Farm Exports Predicted to Set Record in 2011

表示数量增加

跟去年相比，产量增加了百分之十。
Output has increased by 10% over last year.

同去年相比，产量增加了百分之二十。
Output has increased by 20% over last year.

我们盘算了一下，产量将增加百分之五。
We figured that the output would increase by five per cent.

由于生产技术的改进，产量的增加值大幅度提高。
With the improvement in production technology, the added value of the production volume increasesed by a large margin.

2.Agriculture Secretary Tom Vilsack points out that agriculture is one of the few major areas of the economy with a trade surplus.

with a trade surplus介词短语作后置定语，修饰economy。例如：

the bird in the tree 树上的那只小鸟 
　　the map on the wall 墙上的地图 

还有部分副词也可以作后置定语：
 
　　above (上方的)，below (下面的)，on (活动,进行，上演)，out (外出)，back (后面的),away (离开的）等修饰名词时位于被修饰词之后。例如： 
　　1) The clouds above began to get thicker. 上方的云开始密集起来。 
　　2) From the hill top we could see the plain below. 从山顶上我们可以看到下面的平原。 
　　3) She went to see them on the evening out. 凡她晚上外出总去看他们。 

3.Poor growing conditions overseas played an important part in higher prices for American crops this year.

play a part起作用

例句：Recent structural changes also play a part.
      最近的结构性变化也扮演了重要角色。

4.Corn and wheat are the two largest crops supported by the government through subsidy payments.

可修饰最高级的词语

最高级前可用 the very, the second, much the, (by) far the, not quite the, nearly, almost, by no means 等修饰。

He is far more careful than I am. 他比我仔细得多。

This is much the most important. 这是最重要的。

Hainan is China’s second largest island. 海南是中国第二大岛。

This is quite far the most expensive bicycle in the shop. 这是这家商店里最最贵的自行车。

注：very不能修饰比较级，却可修饰最高级，但它与一般的修饰最高级的副词有所不同，即它要放在最高级前的定冠词之后，而不是之前(另外，second, third, next等也要放在定冠词之后)。