英语四种条件句(条件句四种类型)

虚拟条件句主要有下面两类:

表示现在及将来情况(表示纯然假设或实现的可能性不大的情况):

谓语主要形式如下(be多用were这个形式):

从句 主句

过去式

would + 动词原形

if i were you, i wouldn’t lose heart.

how nice it would be if you could stay a bit longer.

表示过去情况的虚拟条件句(与事实完全相反的假设情况), 谓语主要形式如下:

从句

主句

had + 过去分词

would have + 过去分词

she would have come if we had invited her.

if i hadn’t taken your advice, i would have made a bad mistake,

you wouldn’t have caught cold if you had put on more clothes.

有时候, 条件从句表示的动作和主句表示的动作, 发生的时间是不一致的(如一个是过去发生的, 一个是现在发生的). 这时, 动词的形式要根据表示的时间来调整. 这种句子可以称为错综时间条件句.

if he had received six more votes, he would be our chairman now.

if we hadn’t got everything ready by now, we should be having a terrible time tomorrow.

有时假设的情况并不以条件从句表示, 而是通过一个介词短语来表示.

without music, the world would be a dull place.

we could have done better under more favorable conditions.

that would have been considered miraculous in the past.

but for the storm, we should have arrived earlier.

如果条件句从句中包含有 were, had, should 或could, 有时可把if省略掉, 并把were, had, should或could放在主语前面.

had we made adequate preparation, we might have succeeded.

should there be a flood, what should we do?

were it not for their assistance, we would be in serious difficulty.

  相关文章:

   Directions:Forthispart,youareallowed30minutestowriteashortessayentitled“MyViewonUniversityRanking”Youshouldwriteatleast150words.范文MyViewonUniversityRankingThepastyearshave

   相传在4000多年前的夏朝，即中国历史上第一个奴隶制王朝就开始有了历法(calendar)，后人把当时中国古老的传统历法叫“夏历”。夏历是按月亮的运行周期(rotatingcycle)制定的，故又称作“阴历”。由于夏历中有一年四季节

   Directions:Forthispart,youareallowed30minutestowriteacompositiononthetopicABoominContinuingEducation.Youshouldwriteatlea

   四六级图表作文题总是让大家不知所措，英语四级频道给大家发50个套句，融会贯通走起!每天过10个，5天时间解决四六级图文写作!GO!GO!!GO!!!1.thetableshowsthechangesinthenumberof……overtheperiodfrom……to……该表格描述了在……年之……年

   距离2019年12月大学英语四级考试还剩不到2个月时间，不知各位考生准备好了嘛~四级写作是四级考试中的重头戏，今天四六级为大家分享2019.12月英语四级范文模板：宿舍生活，满满的干货，只要你认真用心的学，就能取得好成绩!12月英语