Question

There is going to be an American film tonight.中的There is going to be和 an American film分别是什么

中的There is going to be和 an American film分别是什么成分？

Answer 1

整个句子意思是;今晚将会有一场美国电影。“There is ”结构表示“有”，“be going to ”表示将来，可以用will代替。两者一起 用变成了“There is going to be +名词表示：“将会有”含义。
an American film 是作表语，tonight 是 时间状语

谢谢

Answer 2

there be 句型中运用be going to 结构，an American film 是主语

Answer 3

There is going to be 将会有， there is 是有的意思， going to be表示将来时态。

an American film美国电影

There is going to be an American film tonight. 今晚将会有美国电影可以看。