英语动词后加ed用法

2023-08-15 10:44:52 来源:万能知识网


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英语动词按其过去式和过去分词的构成方式可分为规则动词和不规则动词。统计规则动词的过去式和过去分词由词尾加-ed构成,下面小编告诉你英语动词后加ed用法,大家一起来看看吧!英语动词后加ed用法:a.规则动词过去式的变化可速记为直、去、双、改四字诀。①一般情况下在动词原形后直接加-ed。如:wanted,played。②以不发音的字母e结尾的动词,去掉e再加-ed。如:hoped,lived。③重读闭音节单词需双写最后一个辅音字母再加-ed。如:stopped。④以辅音字母+y结尾的动词变y为i,再加-ed。如:studied,worried。规则动词过去式的读音也有规律可循。请记住:清后[t],元浊[d],[t] [d]之后读[Id]。①清辅音[p] [k] [f] [s] [F] 等后,ed要读[t]。如:worked,finished。②元音或浊辅音[b] [g] [v] [z] [m]等后,ed要读[d]。如:lived,called。③[t]或[d]后,ed读[Id]。如:started,needed。b.不规则动词变化,要逐一熟记。be动词过去式有两种形式,主语是第一、三人称单数形式使用was,其他人称用were。注意事项:A) 注意时间状语的搭配。一般过去时的时间状语应该是表示过去某个时间的词或词组,如:yesterday, last month, in 1999, two days ago等,绝对不可与recently, in the past 10 years, this month等连用,因为这样的时间状语都与现在有关系,应该用现在完成时或一般现在时。B) used to do的否定形式和疑问形式很特别:你怎么写都正确。以否定形式为例:used not to do, didn"t used to do, didn"t use to do都对。Used to do经常与 be used to doing sth/ sth结构进行对比。前者表示"过去常常或过去曾经",要求加动词原形;后者表示"习惯于",要求加名词或动名词。动词appreciate的两点用法:1. 表示“感激”“赞赏”等,通常为及物动词,其后可接名(代)词、动名词、名词性从句等作宾语,但不能接不定式。如:I really appreciate a good cup of tea. 有好茶一杯,我就真乐在其中了。I appreciate your giving me so much of your time. 真感激你为我花了这么多时间。I appreciate being given this opportunity. 非常感谢给了我这个机会。I appreciate that you have come here so early. 感谢你来得这么早。其后不直接跟 if 或when引导的从句,若语义上需要接这类从句,需借助 it。如:We really appreciate it when she offered to help. 她来帮忙了,我们十分感激。I would much appreciate it if you would arrange this for us. 如果你能替我安排这事,我将非常感激。2. 其后只能接“事”作宾语,而不能接“人”作宾语;若接“人”作宾语,可考虑用动词thank等。比较:正:We appreciate your help. 我们感谢你的帮助。误:We appreciate you for your help.正:He thanked her for her help. 他感谢她的帮助。误:He thanked her help.动词know的几条用法与搭配:1. 其后一般不直接跟不定式,但在以下情况可接不定式:(1) 后接“疑问词(why 除外)+不定式”。如:I didn’t know what to say. 我不知道说什么。We don’t know when to start. 我们不知道什么时候出发。他会弹钢琴。误:He knows to play the piano.正:He knows how to play the piano.(2) 表示知道应该要做某事。如:She knows not to tell anyone about it. 她知道不该告诉任何人。比较下面两句,注意其中的how的有无和意思的变化:Does he know to come here first? 他知道应该先到这儿来吗?Does he know how to come here? 他知道如何到这儿来吗?2. 比较 know 与 get [come] to know:前者意为“认识”,是持续性动词;后者意为“开始认识”,是终止性动词。如:We’ve known each other for 10 years. 我们俩认识10年了。We got to know each other ten years ago. 我们俩是10年前认识的。3. know 之后可接不定式的复合结构,主要句型为:(1) know+宾语+to be(to be通常不省略),这类句型可转换为that引导的宾语从句。如:I know him to be a fool.=I know (that) he is a fool. 我知道他是个傻瓜。(2) know+宾语+to do(有时可省略 to),在这类句型中 know 一般只限于用过去时或完成时,通常译为“听说过”“见过”等。如:I have never known her (to) tell lies. 我从未听说她撒过谎。I’ve never known her (to) be late before. 我以前从不知道她迟到过。在被动语态中,不定式必须带 to。如:He was known to have a quick temper as a boy. 人们都知道他在孩提时代脾气暴躁。4. 比较:be known as, be known for 与 be known to:(1) be known as 意为“作为……出名”。如:She was well known as an excellent dancer. 她作为一个杰出的舞蹈家非常有名。(2) be known for 意为“因为……出名”。如:He is known for his poems. 他以他的诗出名。(3) be known to 意为“为……所知”。如:He is known to everyone. 大家都熟悉他。动词 admit 的用法与搭配:1. 表示“承认”,注意以下用法:(1) 表示“承认做了某事”,其后通常接动名词不接不定式。如:She admitted having seen us. 她承认看到过我们。I admit breaking the window. 我承认打破了窗子。用于此义时,有时也说admit to,此时的 admit为不及物动词,但该结构中的介词 to 常可省略,省略介词后 admit 即为及物动词。如:He admitted (to) stealing. 他供认了偷盗。He admitted (to) feeling a bit tired. 他承认有点累。(2) 有时其后接带不定式的复合宾语,但其中的不定式通常应是 to be。如:She admitted him to be right. 她承认他是对的。You must admit the task to be difficult. 你们得承认任务是艰巨的。(3) 有时可后接从句。如:He admitted that it was really his fault. 他承认这确实得怪他。She admitted that she was afraid of spiders. 她承认她害怕蜘蛛。2. 表示“允许进入”“使能进入”,可指进入某一具体场所也可指进入某一组织机构等。如:This ticket admits one person only. 此票只限一人使用。There were no windows to admit air. 没有窗子可使空气流入。The school admits 200 students every year. 这所学校每年招收200名学生。试比较以下两句(注意介词不同)。如:She was admitted to [into] the Party. 她被吸收入党。She was admitted as a Party member. 她被接纳为党员。表示“允许进入”等,也含有动态意味,所以一般不与 enter, go in 之类的词连用。如:通常不说:He opened the door and admitted me to enter into the house.(可将to enter去掉)3. 和于习语 admit of,其意为“容许有”“有……余地”“有……的可能”。如:The price quoted will not admit of any allowance. 所报价格不容打折扣。This sentence admits of several interpretations. 这个句子可以有许多解释。
关键词: 动词 不定式 宾语
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