小升初英語語法省略句知識點：在虛擬條件句型中的應用
一、省略連詞if
有時可將條件從句的連詞if省略，但此時應用倒裝句型，即將從句中的were， should， had 等提 到句首。如：
Were I you， I would stay.
倘若我是你， 那我就留下。
Should I be free tomorrow， I will come.
萬一我明天有空，我會來。
Had it not been for the bad weather we would have arrived in time.
若不是天氣壞，我們就準時到達了。
注：
① 若條件從句為否定句，否定詞not應置于主語之后，而不能與were， should， had 等縮略成 weren’t， shouldn’t， hadn’t而置于句首。
② 有時省略if后提前的had不是助動詞。如：
Had I time， I would come.
假若我有時間，我會來的。(=If I had time…)
二、省略從主語和動詞be
若主從句主語一致，且謂語部分包含有動詞be，通?？蓪⒅髡Z和動詞be省略。如：
If repaired earlier， the tractor would not have broken down.
要是早點兒修一下，拖拉機就不會拋錨了。(=If it had been repaired earlier…)
三、省略“it+be”
If necessary， I would send more farm-hands to help you.
如果需要的話我會派更多的民工去你。
四、省略整個條件從句
這樣的省略通常需要借助一定的上下文，即省略條件從句后，所剩下的主句的意思在一定的上下 文中意思是清楚的。如：
I might see her personally. It would be better.
我可以親自去看她，這樣好一些。(=…If I saw her personally， it would be better.)
一、省略連詞if
有時可將條件從句的連詞if省略，但此時應用倒裝句型，即將從句中的were， should， had 等提 到句首。如：
Were I you， I would stay.
倘若我是你， 那我就留下。
Should I be free tomorrow， I will come.
萬一我明天有空，我會來。
Had it not been for the bad weather we would have arrived in time.
若不是天氣壞，我們就準時到達了。
注：
① 若條件從句為否定句，否定詞not應置于主語之后，而不能與were， should， had 等縮略成 weren’t， shouldn’t， hadn’t而置于句首。
② 有時省略if后提前的had不是助動詞。如：
Had I time， I would come.
假若我有時間，我會來的。(=If I had time…)
二、省略從主語和動詞be
若主從句主語一致，且謂語部分包含有動詞be，通?？蓪⒅髡Z和動詞be省略。如：
If repaired earlier， the tractor would not have broken down.
要是早點兒修一下，拖拉機就不會拋錨了。(=If it had been repaired earlier…)
三、省略“it+be”
If necessary， I would send more farm-hands to help you.
如果需要的話我會派更多的民工去你。
四、省略整個條件從句
這樣的省略通常需要借助一定的上下文，即省略條件從句后，所剩下的主句的意思在一定的上下 文中意思是清楚的。如：
I might see her personally. It would be better.
我可以親自去看她，這樣好一些。(=…If I saw her personally， it would be better.)