句子成分我不明白麻烦语法好的同学进来看看Itisurgentthattheacteproblemofairpollutioninthecitybesolved这是倒桩还是什么如果后边整个一个句子是主语那么besolved和isurgent不是两个系动
句子成分我不明白麻烦语法好的同学进来看看
Itisurgentthattheacteproblemofairpollutioninthecitybesolved这是倒桩还是什么如果后边整个一个句子是主语那么besolved和isurgent不是两个系动词了么
这个是强调句型.
Itis+sth/adj+that.
由该句型中it是形式主语,真正的主语是that引导的主语从句,常译为”清楚（显然,真的,肯定．．．）”是主语从句最常见的一种结构.Itisurgentthattheacteproblemofairpollutioninthecitybesolved是强调urgent
所以吗,that后的从句中要用虚拟语气（should+动词原形）,should可以省去.建议记住该句型中的形容词.其它例句Itisimportantthatwe(should)learnEnglishwell.
下面我们针对ImetLiMingattherailwaystationyesterday.句子进行强调.强调主语：ItwasIthat(who)metLiMingattherailwaystationyesterday.强调宾语：ItwasLiMingthatImetattherailwaystationyesterday.强调地点状语：ItwasattherailwaystationthatImetLiMingyesterday.强调时间状语：ItwasyesterdaythatImetLiMingattherailwaystation.
祝好!