题目内容
17．Washing machines _________ by millions of families today．（ ）| A． | used | B． | are used | C． | were used | D． | use |
分析 如今数百万的家庭使用洗衣机．
解答 答案：B
根据句中主语Washing machines 是谓语动词use的承受者，二者是被动的关系，故用被动语态，根据时间状语today可知，此句要用一般现在时态．故谓语动词要用一般现在时的被动语态．一般现在时的被动语态的结构为is/am/are+及物动词的过去分词，故选B．
点评 在完成此类题目时，要通过主语与谓语动词之间的关系来判断句子的语态，是主动结构还是被动结构；然后再根据时间状语判断句子的时态，即可选出正确答案在本题中掌握一般现在时的被动语态的结构：is/am/are+及物动词的过去分词是答题关键
练习册系列答案
相关题目
7．Beijing took its third CBA title ____March 22nd，2015．（ ）
| A． | at | B． | in | C． | on | D． | by |
8．-Lily，look at my skirt!
-Oh，your skirt is the same ________．（ ）
-Oh，your skirt is the same ________．（ ）
| A． | as me | B． | with her | C． | with mine | D． | as hers |
5．-______ You should put away your books and make your room tidy and clean．
-Oh，sorry，I'll do it．（ ）
-Oh，sorry，I'll do it．（ ）
| A． | What a clean room! | B． | What a mess! | ||
| C． | How exciting! | D． | Sounds great！ |
12．The doctor told Mary that she ________ give up fatty foods because it was bad for her health．（ ）
| A． | could | B． | should | C． | might | D． | would |