The country has already sent up three unmanned spacecraft,the most recent __at the end oF last MaA.has been launchedB.having been launched为什么不选A呢?the most recent 不是指一个吗?还有为什么B项是ing形式呢?
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/16 04:51:16
The country has already sent up three unmanned spacecraft,the most recent __at the end oF last MaA.has been launchedB.having been launched为什么不选A呢?the most recent 不是指一个吗?还有为什么B项是ing形式呢?
The country has already sent up three unmanned spacecraft,the most recent __at the end oF last Ma
A.has been launched
B.having been launched
为什么不选A呢?the most recent 不是指一个吗?还有为什么B项是ing形式呢?
The country has already sent up three unmanned spacecraft,the most recent __at the end oF last MaA.has been launchedB.having been launched为什么不选A呢?the most recent 不是指一个吗?还有为什么B项是ing形式呢?
这是独立主格结构 作非限制性 定语.
如果 选A .逗号前 应加 and .就成了并列句.但谓语应该是 was launched.
注意 下面 的表达 意思一样.
,the most recent of which was launched...这是定语从句
,and the most recent was launched...这是并列句.
,the most recent having been launched...这是 独立主格结构.因为已经发生,故 用现在分词的完成形式的被动形式
这里考察的是非谓语动词做定语。主语是the country, 谓语为has sent up, 主句已完结。后面用having been launched 引导定语。 the most recent 意思是最近的。。。不就是 最近的一个在last March 已经开始着手 吗? 通过“最近的”怎么知道是一个还是多个?是不是如果A 是hasing been launched 就对了?先回答你的这个问...
全部展开
这里考察的是非谓语动词做定语。主语是the country, 谓语为has sent up, 主句已完结。后面用having been launched 引导定语。 the most recent 意思是最近的。。。
收起