今天凯撒国际英语的教你如何正确使用虚拟语气,虚拟语气是英语语法中的重点知识。只有把基础英语语法学扎实了,再进一步学习可是很轻松的哦!虚拟语气表达的句子意思很丰富的,对于英语口语也有很大的帮助!
接下来,一起学习吧!
1) 概念。
虚拟语气用来表示说话人的主观愿望或假想,所说的是一个条件,不一定是事实,或与事实相反。
2) 在条件句中的应用。
条件句可分为两类,一类为真实条件句,一类为非真实条件句。非真实条件句表示的是假设的或实际可能性不大的情况,故采用虚拟语气。
16.1 真实条件句。
真实条件句用于陈述语气,假设的情况可能发生,其中 if 是如果的意思。
时态关系。句型: 条件从句主句。
一般现在时 shall/will + 动词原形。
if he comes, he will bring his violin.
典型例题。the volleyball match will be put off if it __
a. will rain b. rains c. rained d. is rained
答案b。真实条件句主句为将来时,从句用一般现在时。
注意:1) 在真实条件句中,主句不能用be going to表示将来,该用shall, will.
(错) if you le**e now, you are never going to regret it.
(对) if you le**e now, you will never regret it.
2) 表示真理时,主句谓语动词便不用shall (will) +动词原形,而直接用一般现在时的动词形式。
16.2 非真实条件句。
1)时态:可以表示过去,现在和将来的情况。它的基本特点是时态退后。
a.同现在事实相反的假设。
句型 : 条件从句主句
一般过去时 should( would) +动词原形。
if they were here, they would help you.
b.表示于过去事实相反的假设。
句型: 条件从句主句
过去完成时 should(would) h**e+ 过去分词。
if she had worked harder, she would h**e succeeded.
the rice would not h**e been burnt if you had been more careful.
if my lawyer had been here last saturday, he would h**e prevented me from going.
if he had come yesterday, i should / would h**e told him about it.
含义: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 h**e made greater progress.
含义: he was ill and missed many lessons, so he did not make greater progress.
c.表示对将来的假想。
句型: 条件从句主句。
一般过去时 should+ 动词原形。
were+ 不定式 would + 动词原形。
should+ 动词原形。
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.
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