初中英语被动语态知识点详解
被动语态是中考英语的一个重要考点，接下来学习啦小编为你整理了初中英语被动语态知识点详解，一起来看看吧。
初中英语被动语态知识点：使用被动语态“六注意”
一要注意被动语态的不同时态
被动语态由“be+过去分词”，其中的助动词be根据情况可使用各种不同时态。如：
She is respected by everyone. 她受到大家的尊重。(一般现在时)
The book will be reprinted soon. 这本书很快会重印。(一般将来时)
The road is being repaired. 路正在修整。(现在进行时)
They have been given a warning. 他们受到警告。(现在完成时)
二要注意带情态动词的被动语态
该结构的基本形式为“情态动词+be(或be的适当形式)+过去分词”。这类结构非常有可能作为语境题出现在考卷中。如：
The rules must be obeyed. 这些规章制度必须遵守。
They shouldn’t have been told about it. 这事是不应当告诉他们的。
三要注意非谓语动词的被动语态
1. 不定式一般式的被动语态。由“to be+过去分词”构成。如：
She asked to be given some work to do. 她要求给她一些工作做。
He was the last person to be asked to speak. 他是最后被邀请发言的人。
2. 不定式完成式的被动语态。由“to have been+过去分词”构成。如：
I should like to have been told the result earlier. 我本想让人把结果早点告诉我的。
3. 现在分词一般式的被动语态。由“being+过去分词”构成。如：
I saw him being taken away. 我看见有人把他带走了。
Being protected by a wall, he felt quite safe. 有墙作保护，他感到很安全。
4. 现在分词完成式的被动语态。由“having been+过去分词”构成。如：
Having been invited to speak, I’ll start making preparations tomorrow. 因为邀请我去讲话，我明天就得做准备。
The subject having been opened，he had to go on with it. 话题已经开始了，他不得不谈下去。
5. 动名词一般式的被动语态。由“being+过去分词”构成。如：
She likes being looked at. 她喜欢被人瞧。
He hates being made a fool of. 他讨厌被别人愚弄。
This question is far from being settled. 这个问题远没解决。
6. 动名词完成式的被动语态。由“having been+过去分词”构成。如：
Jenny’s not having been trained as a dancer is her one regret. 杰妮没受过舞蹈的专业训练是她感到遗憾的事。
After having been instructed to drive out of town, I began to acquire confidence. 在接到把车开出城的指令后，我开始信心十足了。
注：过去分词没有被动式，因为它本身可以表示被动意义。如：
The door remained locked. 门仍然锁着。
初中英语被动语态知识点：被动句型的转换
英语中有一种主动句可以转换成两种被动句型，它们通常是一些表示客观说明的句子，如：
People believed that she is honest. 大家相信她是诚实的。
→ It’s believed that she is honest. 大家相信她是诚实的。
→ She is believed to be honest. 大家相信她是诚实的。
比较上面两类被动句型可以发现，一类是“it+be+过去分词+that从句”，另一类则是“主语+be+过去分词+不定式”(其中的“主语”为前一类句型中that从句中的主语)，通常可用于这两类被动句型的动词有assume, believe, expect, fear, feel, know, presume, report, say, suppose, think, understand等，比较(同时注意其中时态和动词形式的变化)：
It’s expected that he will come soon.= He is expected to come soon. 预计他很快就会来。
It’s expected that he has come. =He is expected to have come. 估计他会已经来了。
It’s known that is a good singer. =He is known to be a good singer. 大家知道他是位优秀的歌手。
It’s known that was a good singer. =He is known to have been a good singer. 大家知道他曾是位优秀的歌手。
初中英语被动语态知识点：何时使用被动语态
1.我们在平常的英语交流中，尽量使用主动语态，但在下列情况下，则通常使用使用被动语态：
The glass is broken. 玻璃杯破了。
Letters are collected at eight every morning. 信件每天早晨八点收取。
2. 为了强调或突出动作的承受者时。如：
The desk was made by Master Wang. 这张课桌是王师傅做的。
The bag was taken away by his sister. 那个口袋是她姐姐提走的。
3. 在上下文中，为了使句子间连接紧密时。如：
I have a new motorbike. It was given to me as a birthday present by my father. 我有辆新摩托车。它是父亲送给我作为生日礼物的。
4. 在新闻报道中，为了表明报道的客观性而避免主观性的透露时。如：
A car accident happened on the high way this morning. Three men were killed, the wounded were taken away to hospital at once and policemen were sent there to cope with the event. 今天早晨高速公路上发生了一起车祸，三人丧生，伤员马上被送往了医院，并马上派了警察去处理这一事件。
5. 在科技论文中，常使用被动语态来强调客观事实。如：
When it is cold enough, water will be turned into ice. 当天气足够冷时，水就会变成冰。
So far, the moon has been visited by earthmen several times. 到目前为止，地球人已经几次拜访了月亮。
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