I've already seen it.I saw it on television last year.

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/12 17:50:49

I've already seen it.I saw it on television last year.
为什么第一句用过去分词,第二句用过去式?
过去分词的作用是什么？

因为第二句有last year 这个过去时的提示词,因此,只能用过去时
如果第二句是,already,那么可以用完成时
如果是since last year ,则也是完成时
你要是问过去分词的作用是什么,我认为这个问题太大,请另行专门提问
我要是回答很多,估计对你这个现在完成时里的过去分词会离题万里
现在完成时的结构是,have has +过去分词,只是一个结构,不必一个个去研究他的性质,意义不大
在别的语境中,过去分词是用来表被动,做过去分词定语,还有被动语气里用的

I've already seen it.I saw it on television last year. We saw it television last year.A.at B.in C.on D.To I saw this film on television（ last year）.(针对划线部分提问) I guess you have already seen it. 为什么英语中"我已经看过了"用的是"I've already seen it"而不用"I've already see Have you seen the film ____ (recent).Yes,I saw it last Sunda It's the best book on English pronunciation I've ever seen中 I have seen the film "titanic" already when ( ) you( ) it it 's been a_____ year since i last saw you.为什么不能用whole? I've seen the film already.与I've already seen the film .的区别 I can't say I miss you.It's a year since I last saw you.A.ho It is _____ _____village I've ever seen(pretty)