6．uncover  v.  拿去盖子（套子/覆盖物）；发现，揭露出
They uncovered the statue at the beginning of the ceremony.  
仪式一开始他们就掀掉了遮住雕塑的覆盖物。
Uncover the dish before you put it into the microwave oven.
在把盘子放进微波炉之前先把盖子拿掉。
The reporter uncovered the scandal in the newspaper. 
记者在报纸上披露了那起丑闻。

7．concerned  adj.  有关的，关切的，担心的
   concern  n. v. 关系，关心，关注，涉及
We are rather concerned about mother’s health.
我们都非常担心妈妈的健康。
His only concern was how to improve the quality of their products.     
他唯一关心的是如何提高他们产品的质量。
It’s a problem that concerns public safety.
那是有关公共安全的问题。
As far as I am concerned, I can not object to your idea.
就我个人而言，我不反对你的观点。

8．board   n. 甲板，木板；伙食，搭伙
   v. 上车，上船；搭伙
There are one hundred people on board the plane.    
飞机上有一百人。
Put the bread on the board before cutting it.
把面包先放在木板上，然后再切。
Then we boarded the bus and headed for the airport.
我们上了车，朝着机场开去。
The Browns will board you very cheaply.
布朗夫妇给你搭伙，收费会很便宜。

9．influence  v. 影响，对……产生影响
   n. 影响；产生影响的人或事物
What we read influences our thinking.
我们读的书影响我们的思想。
Don’t be influenced by bad examples.
别学坏。
Some groups have too much influence on the government.
某些集团对政府的影响太大。
Mr. White is a man of great influence in the town.
在这个镇上，怀特先生是个很有影响力的人。