虚拟语气it is high time that语法|虚拟语气：It is (high) time that
【shitiku.jxxyjl.com--英语语法词汇】
it is (high) time that 后面的从句谓语动词要用过去式或用should加动词原形，但should不可省略。it is time that the children went to bed.
it is high time that the children should go to bed.
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[as]as, which 非限定性定语从句详细阅读
由as, which 引导的非限定性定语从句，as和which可代整个主句，相当于and this或and that。as一般放在句首，which在句中。 as we know, smoking is harmful to ones health the sun heats the eart...
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【情态动词表示推测的用法PPT】情态动词：表示推测的用法详细阅读
can, could, may, might, must 皆可表示推测，其用法如下：1）情态动词+动词原形。 表示对现在或将来的情况的推测，此时动词通常为系动词。 i dont know where she is, she may be in wuhan 2）情态动词+动词现在进行时。 表...
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专四语法主谓一致真题及答案_语法重点之一：主谓一致详细阅读
主谓一致指“人称”和“数”方面的一致关系。对大多数人来说，往往会在掌握主语和随后的谓语动词之间的一致问题上遇到困难。一般情况下，主谓之间的一致关系由以下三个原则支配： 语法一致原则 (grammatical concord) 意义一致原则 (notional concord) 就近一致...
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动词不定式的六种句法功能_动词不定式和动名词的句法功能比较详细阅读
一,作主语 ⒈不定式作主语 动词不定式作主语时,句子的谓语动词常用单数,其位置有以下两种: (1)把不定式置于句首 如: to get there by bike will take us half an hour (2)用it作形式主语,把真正的主语不定式置于句后,常用于下列句式中 如: ①i...
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情态动词的提问和回答表格_情态动词的回答方式详细阅读
问句 肯定回答 否定回答need you…? yes, i must no,i needntmust you…? dont have to 典型例题1）---could i borrow your dictionary?...
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【让步状语从句】让步状语从句详细阅读
though, although 注意： 当有though, although时，后面的从句不能有but，但是 though 和yet可连用 although its raining, they are still working in the field 虽然在下雨，但他们仍在地里干活。 h...
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动词的语态有哪些|动词的语态：need/want/require/worth详细阅读
注意：当 need, want, require, worth(形容词)后面接doing也可以表示被动。 your hair wants cutting 你的头发该理了。 the floor requires washing 地板需要冲洗。 the book is worth rea...
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[强调句结构]强调句结构详细阅读
常考的强调句结构是it 引导的句子。 it is (was) 被强调部分+ that (who) + 句子其他部分。此结构强调的成分仅限于主语，宾语和状语。 it is from the sun that we get light and heat it was not until i...
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since的动词用法时态|动词的时态：比较since和for详细阅读
since 用来说明动作起始时间，for用来说明动作延续时间长度。 i have lived here for more than twenty years i have lived here since i was born my aunt has worked in a clinic...
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[英语有特殊意义的名词]英语中有特殊意义的动词短语详细阅读
美国人平时所用的许多短语，看似普通，但有的会有特別意义，究竟是俚语、口语或俗语，没有绝对的定义。其实名称不重要，最重要的是懂得意义和用法，不是吗？ 1、to have(many) irons in the fire: to have a lot of activities going on at...