偶看新闻2017司法考试出成绩:单数句和复数句的转换
来源：百度文库 编辑：偶看新闻 时间：2024/04/28 06:32:02
日常练习中，大家经常会遇到单数句与复数句的转换。现在我们就来学一学如何在二者之间进行转换。
[操练] 按要求完成单数句与复数句的转换。
1. That is a rubber. (改为复数句)
2. These are apples. (改为单数句)
3. This is a photo. (改为复数句)
4. They are girls. (改为单数句)
[秘诀]
将单数句变为复数句，通常要遵循的规则是：变、删、留。
[融会贯通]
变：将单数句中的指示代词、人称代词、物主代词、名词及动词变为对应的复数形式，如this→these, that→those, he / she / it→they, I→we, my→our, his / her /
its→their, am / is →are, does→do等。
删：将单数句中的不定冠词a / an删掉。 如：That is a watch. → Those are watches.
留：保留单数句中的形容词、定冠词 the、副词、疑问词、介词等。如：
This is a nice book.→These are nice books.
What is that?→What are those?
The boy in red is my cousin.→The boys in red are our cousins.
He usually does his homework at home.
→They usually do their homework at home.
要将复数句变为单数句时，逆向进行转换即可。
Key：
1. Those are rubbers. 2. This is an apple.
3. These are photos. 4. She is a girl.