题目内容
17.在把垃圾扔掉之前应该先将它们分类.The waste should be sorted before it isthrownaway.
分析 thrown away.
解答 答案:thrown away.主语it是动词throw away扔掉的承受者,构成被动关系,结合时态,before引导的时间状语从句,主句含有情态动词,从句用一般现在时,故用一般现在时的被动语态be+过去分词,throw的过去分词thrown,故答案是thrown away.
点评 一般现在时的被动语态be+过去分词的呈现,各种类型的被动语态的构成要理解掌握.
练习册系列答案
相关题目
8.-Linda,could you please tell me how to_______ with others?
-Sure.I'd love to.( )
-Sure.I'd love to.( )
| A. | get up | B. | put on | C. | laugh at | D. | get on |
12.This is the only painting in this style ____________ we have.( )
| A. | which | B. | that | C. | in which | D. | in that |
6.-The exam was very easy,wasn't it?
-Yes,but not ________ could pass it.( )
-Yes,but not ________ could pass it.( )
| A. | somebody | B. | anybody | C. | nobody | D. | everybody |