It's my heart pounding.这个地方的ing是什么结构？谢谢。

ing是什么形式

动词的 -ing形式是动词的一种非谓语形式，由动词原形加 -ing构成，包括 -ing分词和 -ing动名词。可以在句子中用作主语、表语、宾语、宾语补语、状语和定语。 #深圳英语培训机构# 1.一般形式 Seeing is believing. 眼见为信。 Coming to Hangzhou by train takes about 16 hours. 乘火车到杭州要16个小时。 2.通常为了避免句子主语过于冗长，用it作形式主语。如： It‘s nice talking with you. 和你谈话很高兴。 It‘s no use arguing with him. 跟

什么时候it's后面+ing（在线等）

It’s no good/use… -ing and It is worth …-ing.常用-ing, 其他时候为非正规表达。 1) It’s no good talking to him – he never listens. 2) It’s no use expecting her to say thank-you. 3) It’s no use trying to explain – I’m not interested. 4) It’s worth going to Wales if you have time. 5) It isn’t worth waiting for him.

英语动词在什么情况或句型下是ing 形式的?

1. -ing分词的构成 -ing分词是由动词原形加词尾-ing构成。-ing分词同样有时态和语态的变化，通常有下表几种形式（以do为例）： 主动形式 被动形式 一般式 doing being done 完成式 having done having been done -ing分词的否定形式是由not 加-ing分词构成。如： Not knowing his address, I could do nothing but stay at home and wait. 不知道他的地址，我只好在家里等着。 His not coming made all of us angry. 他没来使我们大家都

什么时候it's后面+ing（在线等）什么时候

It’s no good/use… -ing and It is worth …-ing.常用-ing, 其他时候为非正规表达。 1) It’s no good talking to him – he never listens. 2) It’s no use expecting her to say thank-you. 3) It’s no use trying to explain – I’m not interested.

高中英语语法辨析。。 什么时候用 It形式作主语加ing？ 什么时候又用it句型，用原形?

常用it作形式主语的句型结构 ◇ It + be +形容词+ that-从句 可用于此句型的形容词有: wonderful, true，good，right，wrong，（un）important，useless，surprising，clear，unusual，lucky，certain, necessary等。 如： ① It is quite certain that he will be at the meeting. ② It is surprising that he came late to school this morning. ③ It is important that