VOA慢速英语:Some Advice on Choosing a College

例句：the bill was astronomically high.
      这个账单上的数字太大了。

2.effectively ad.有效地,有力地,实际上

例句：The orator delivered his speech effectively.
       演说家深刻有力地发表了演说。

3.stretch v.延伸
 
例句：The road stretches uphill at a steep slope.
      这条路以陡峭的坡度向山上延伸。

      The bird stretched its wings.
      鸟展开了翅膀。

4.recognize v.承认…有效[属实]; 认可

例句：We don't recognized him to be the lawful heir.
      我们不承认他为合法继承人。

5.lesser adj.较小的,较少的,次要的

例句：The pollution of the forest has seriously affected plant life and, to a lesser extent, wildlife.
      森林污染对植物有严重的影响，对野生动物也有一定影响。

6.recreation n.娱乐(方式); 消遣(方式)

例句：The rest of the day was entirely at his disposal for reading and recreation.
       当天剩余时间完全由他支配, 看看书, 消遣消遣。

       My only recreations are drinking beer and working in the garden.
       我仅有的消遣方式就是喝啤酒和在花园里种花草。

7.top v.超过; 胜过; 高过

例句：He tops the rest in scholarship.
      他的学识超过其他人。

8.motivate vt.作为…的动机; 激发; 诱发

例句：You have first got to motivate the children and then to teach them.
      你首先得激发孩子的学习兴趣, 然后再去教他们。

      No one really knows what motivated him to do so.
      没有人确知他那样做的动机。