搜搜做题作业网英语语法问题It's expected that 里面expected为什么要加ed ,
来源：学生作业帮 编辑：搜搜做题作业网作业帮 分类：英语作业 时间：2024/07/23 01:43:36
英语语法问题
It's expected that 里面expected为什么要加ed ,
It's expected that 里面expected为什么要加ed ,
这个句子是主语从句.
it 是形式主语,真正的主语是 that 后边的那句话,由于主语过长,所以用 it 代替,将真正的主语移到后面,避免头重脚轻.
至于为什么要用 ed 的形式, 是因为这里有被动语态的含义,主语的内容 同 expect 之前的关系是被动的关系, 主语的内容是“被期望”的,所以要用动词的被动语态的形式加ed.
另外, “It is + V-ed + that +句子” 是一个固定的句型,其中常用的动词有：say,know,expect,sguuest 等.分别有“据说,众所周知的是,我们预期,有人认为”的意思.
详细的请看下边的语法介绍：
主语从句
作句子主语的从句叫主语从句.主语从句通常由从属连词that,whether,if和连接代词what,who,which,whatever,whoever以及连接副词how,when,where,why等词引导.that在句中无词义,只起连接作用；连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用,在从句中充当从句的成分.例如：
What he wants to tell us is not clear. 他要跟我们说什么,还不清楚.
Who will win the match is still unknown. 谁能赢得这场比赛还不得而知.
It is known to us how he became a writer. 我们都知道他是如何成为一名作家的.
Where the English evening will be held has not yet been announced. 英语晚会将在哪里举行,还没有宣布.
有时为避免句子头重脚轻,常用形式主语it代替主语从句作形式主语放于句首,而把主语从句置于句末.主语从句后的谓语动词一般用单数形式.常用句型如下：
（1） It + be + 名词 + that从句
（2）It + be + 形容词 + that从句
（3）It + be + 动词的过去分词 + that从句
（4）It + 不及物动词 + that 从句
另注意在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时,谓语动词要用虚拟语气“(should) +do”,常用的句型有：
It is necessary (important, natural, strange, etc.) that …
It is a pity (a shame, no wonder, etc.) that…
It is suggested (requested, proposed, desired, etc.) that…
it 是形式主语,真正的主语是 that 后边的那句话,由于主语过长,所以用 it 代替,将真正的主语移到后面,避免头重脚轻.
至于为什么要用 ed 的形式, 是因为这里有被动语态的含义,主语的内容 同 expect 之前的关系是被动的关系, 主语的内容是“被期望”的,所以要用动词的被动语态的形式加ed.
另外, “It is + V-ed + that +句子” 是一个固定的句型,其中常用的动词有：say,know,expect,sguuest 等.分别有“据说,众所周知的是,我们预期,有人认为”的意思.
详细的请看下边的语法介绍：
主语从句
作句子主语的从句叫主语从句.主语从句通常由从属连词that,whether,if和连接代词what,who,which,whatever,whoever以及连接副词how,when,where,why等词引导.that在句中无词义,只起连接作用；连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用,在从句中充当从句的成分.例如：
What he wants to tell us is not clear. 他要跟我们说什么,还不清楚.
Who will win the match is still unknown. 谁能赢得这场比赛还不得而知.
It is known to us how he became a writer. 我们都知道他是如何成为一名作家的.
Where the English evening will be held has not yet been announced. 英语晚会将在哪里举行,还没有宣布.
有时为避免句子头重脚轻,常用形式主语it代替主语从句作形式主语放于句首,而把主语从句置于句末.主语从句后的谓语动词一般用单数形式.常用句型如下：
（1） It + be + 名词 + that从句
（2）It + be + 形容词 + that从句
（3）It + be + 动词的过去分词 + that从句
（4）It + 不及物动词 + that 从句
另注意在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时,谓语动词要用虚拟语气“(should) +do”,常用的句型有：
It is necessary (important, natural, strange, etc.) that …
It is a pity (a shame, no wonder, etc.) that…
It is suggested (requested, proposed, desired, etc.) that…
as expected 为什么expect要加ed?
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