首先是非谓语动词。
请看下面这2道例题。
(注意只能看选项和后面的讲解,千万不能先看题目,这是我第一节就说过的)
带着俩个问题看
①选项设置有何相同点,有何不同点?
②从答案中,我们能看到什么规律?
1.A few days after the interview I received a letter________ my admission to the university.
A.offering B.offered
C.having offered D.to be offered
解析:offer 和其逻辑主语a letter 之间是主动关系,所以要用doing表主动,相当于which offered。语意为:面试后的几天,我收到了这所大学录取我的信。
答案:A
2.The firefighters were searching the burning train for survivors, with masks ________ their mouths.
A.covered B.covering
C.to cover D.to be covered
解析:在with复合结构中masks和cover之间是主动关系,故用doing。
答案:BI













