I am surprised they can play in this heat.为什么是surprised 不是surprising吗?不是现在进行时吗?

I am surprised they can play in this heat. I am surprised they can play in this heat. i am surprised they can play in this heat 为什么 surprised后不加at不是 be surprised ati am surprised they can play in this heat 为什么 surprised后不加at不是 be surprised at I am surprised they can play in this heat.为什么是surprised 不是surprising吗?不是现在进行时吗? 都说是be surprised at,但初一教科书上是be surprised如：I am surprised they can play in this heat 翻译：‘I am surprised they can play in this heat’、‘The people are really very relaxed’ I am surprised they can play in this heat中包含了什么句子成分? surprised,can,heat,am,this,play,i,they,football,in连句 in,surprised,am,i,can,play,heat,this,they.连成句子 I,surprised,piay,can,they,heat,am,in,thisl,连词成句 I am surprised they can play in this heat.(改为同义句) To my( ),they can play in such( )weather. I am all the more surprised是什么意思? am surprised they can play in this heat. i am surprised at the news 改为同义句 i‘m surprised（ ）（ ） the news i am surprised at the news同义句 Surprise与surprised的区别,都可作形容词吧? I am surprised与 Iam surprise的区别? I am s( ) they can get there early.上题括号中该填什么我觉得suer和surprised都可以 I am surprised at the news.同义句 I am surprisedI am surprised at the news.同义句 I am surprised__________ _____________the news.