關(guān)于if句型的用法總結(jié)，if的用法這個(gè)問(wèn)題很多朋友還不知道，今天小六來(lái)為大家解答以上的問(wèn)題，現(xiàn)在讓我們一起來(lái)看看吧！
1、1.?(表示條件)如果?,主句用將來(lái)時(shí)，if從句用現(xiàn)在時(shí)表示將來(lái)He?will?come?if?you?invite?him.?如果你請(qǐng)他,他會(huì)來(lái)的。
2、?2.?(表示虛擬)假如,要是?1）時(shí)態(tài)：可以表示過(guò)去，現(xiàn)在和將來(lái)的情況。
3、它的基本特點(diǎn)是時(shí)態(tài)退后。
4、a.?同現(xiàn)在事實(shí)相反的假設(shè)。
5、句型?：?條件從句?主句?一般過(guò)去時(shí)?should(?would)?+動(dòng)詞原形If?they?were?here,?they?would?help?you.b.?表示于過(guò)去事實(shí)相反的假設(shè)。
6、句型：?條件從句?主句?過(guò)去完成時(shí)?should(would)?have+?過(guò)去分詞If?she?had?worked?harder,?she?would?have?succeeded.?The?rice?would?not?have?been?burnt?if?you?had?been?more?careful.?If?my?lawyer?had?been?here?last?Saturday,?he?would?have?prevented?me?from?going.?If?he?had?come?yesterday,?I?should?/?would?have?told?him?about?it.含義：He?did?not?come?yesterday,?so?I?did?not?tell?him?about?it.If?he?had?not?been?ill?and?missed?many?classes,?he?would?have?made?greater?progress.含義：?He?was?ill?and?missed?many?lessons,?so?he?did?not?make?greater?progress.?c.?表示對(duì)將來(lái)的假想句型：?條件從句?主句一般過(guò)去時(shí)?should+?動(dòng)詞原形were+?不定式?would?+?動(dòng)詞原形should+?動(dòng)詞原形If?you?succeeded,?everything?would?be?all?right.If?you?should?succeed,?everything?would?be?all?right.If?you?were?to?succeed,?everything?would?be?all?right.3.?是否?=?whether?連接賓語(yǔ)從句I?wonder?if?she?is?ill.?不知她是否病了。
7、如果，假如的意思假如，，，，假設(shè)句中使用。
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