would be better 表示“.會(huì)更好”,往往單獨(dú)成句,不直接跟動(dòng)詞連用.
如：This car would be better.
也可跟從句,如It would be better that if you can come today.
其他常用句式 This one would be better than that one.
would better + 動(dòng)詞原形與 had better + 動(dòng)詞原形,都表示“最好.”
前者語(yǔ)氣上更加委婉一下.
如：You would better go later./ You had better go now.
本題的用法其實(shí)是涉及到了 it 引導(dǎo)的形式主語(yǔ)句式.
結(jié)構(gòu)如下：It is +adj.（for sb） to do sth.表示 做.是.（形容詞）
如：It is good to read English in the morning.
其中 it 是形式上的主語(yǔ),代指后面的不定式短語(yǔ)（to do sth）,本身沒(méi)有意義.
不定式短語(yǔ)（to do sth）是句子的真正的主語(yǔ),因此可以將此提前.改為：To read English in the morning is good.
本題的形式就是 it would be better （for sb） to do sth
這種句式是為了避免“頭重腳輕”,英語(yǔ)的習(xí)慣說(shuō)法,牢牢記住即可.