課本中不會(huì)教你的[I]416　it is+形容詞+動(dòng)名詞/不定式

416　it is+形容詞+動(dòng)名詞/不定式

◎ 本句型中的it是形式主語，真正主語是后面的動(dòng)名詞或不定式。多數(shù)情況下，這種結(jié)構(gòu)中用名詞或不定式并無太大的區(qū)別，但表示“對(duì)……來說”時(shí)，要用不定式。

It is absurd talking like that. 那樣說話是荒唐的。

It is difficult being parents. 當(dāng)父母是很難的。

I know it's awful my coming here. 我知道自己來這里是很煞風(fēng)景的。

It's not easy to keep up with the changes in computer technology. 趕上計(jì)算機(jī)技術(shù)的變化是不易的。

It is wise to make full preparations. 做好充分準(zhǔn)備是明智的。

Is it possible for man to fly to the Mars？人類飛到火星上去是可能的嗎？