it was hard for me to climb the mountain为什么用was,用is可以吗?用to c

来源：学生作业帮编辑：搜搜做题作业网作业帮分类：英语作业时间：2024/04/28 10:33:10

it was hard for me to climb the mountain为什么用was,用is可以吗?用to climb the mountain作主语怎么写

was就只是表过去,单独这句没有直接的时态限制,除非有上下文.
To climb the mountain was hard for me.这就是原本to do直接做主语的样子,主语太长了,头重脚轻,所以改成It做形式主语,把不定式挪到后面去,这也是“形式成分”存在的意义.

it was hard for me to climb the mountain为什么用was,用is可以吗?用to c It is not difficult for me to climb the mountain. we found that it was hard for us to climb so high a mountain It is not diffcult for me to climb the mountain 同义句转换 To climb the mountain was hard work but as we looked around Life was very hard for me.Singing is hard of me.为什么一个用for,一个 To climb the mountains was a hard work的To climb为什么不用Climbing They could't be able to climb to the top of mountain,It was it is very hard to climb the mountain in one hour的同意句 We decided not to climb the mountain because it was raining It is ()dangerous for children to climb a mountain To climb the mountain often is helpful for you=It is