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情态动词+have done 用法及意义

分类: 作业答案 • 2021-12-01 09:56:23

问题描述：

情态动词+have done 用法及意义
must have done need have done daren't have done
could never have done could have done

答

must have done一定做了某事（对过去的一种肯定推测）
need have done 本需要做某事（但实际没做）（表轻微的责备）
daren't have done = didn't dare do (过去）不敢做某事
could never have done不可能做了某事（对过去的一种否定推测）
could have done 本可以做某事（但实际没做）（表轻微的责备)

语法中,现在分词,过去分词作定语的用法!1-什么情况下分词不能与定语从句互换?我查到的例子中有这样一条规则：如主句谓语是现在时,从句谓语事过去时时.例如：The foreigner who visited our class yesterday is from Canada.(≠The foreigner visited our class yesterday is from Canada.)但是之后看的很多例句把这条推翻了,所以这条规则更详细一点说,是不是区别在延续性/非延续性动词上了?2-过去分词（不及物的）作定语表示完成,那么此时和现在分词的having done有什么区别?（除了having done不能作定语）,也就是说,过去分词表示的完成（have done）时态上怎么看?3很多语法书上写,特定的不及物动词可以有v-ed形式做定语,这个"特定"怎么定义?我怎么样就可以知道哪个可以哪个不可以?
情态动词加have done是什么用法啊?在什么语境下用呢?
情态动词+have done的意义有哪些?
It is strange that she should have done it.句中should是情态动词吗?
麻烦帮我解释一下这句英文句子中的两个语法问题是高一第一单元的一句话：I can well remember that there was a time when a deep blue sky,the song of the birds,moonlight and flowers could never have kept me soellbound.1.为什么要用“could”这个情态动词的过去式和一般过去时连用,而不是说成could never keep me呢?2.记得keep的用法是keep sb.doing sth.或是keep加上形容词,这里为什么用的是keep加上动词过去式呢?（麻烦不要用宾语啦、宾语补足语啦之类的解释,最好能通俗点,因为听同学给我解释了一遍,几乎听不懂,初中的时候没太学语法,尤其对补足语之类的很是不理解,
完成句子.I'm so sorry______at such an awkward time,but I really had something urgent to tell you.(call)我真的很抱歉在这么不合适的时间给你打电话,但我真的有急事告诉你.have called you,请问为什么要用have done,不能只用do吗How can you ask again?I think_____at all when I presented the answer to you.(listen)你怎能再问一遍?我认为当时我在讲解答案时你根本没听.答案是you were not listening,请问为什么不用情态动词表推测?
①Who jumps highest in your class?—john ____.A.has done B.did C.does D.do我认为是选B 可答案是选C、可跳高不已经是过去式了吗?②Today the forests have almost gone.People must____down too many tress .A.stop on cutB.stop from cuttingC.be stop to cut D.be stop from cuttingC③We must do everything we can ____ waste water from running intorivers.A.keep B.kept C.to keep D.keeping can 不是情态动词吗?后面难道不是接原型吗?④ She counldn't __ her words ___by the students.A.get understand B.get understood C
"为"字的所以词性及其词性的意义和用法-例句和出处.【常用文言虚词的意义和用法】例：词性：作名词.意义和用法：表示行为、表现、心理等.例句及出处：或异二者之为（八下《岳阳楼记》）注：除介词,动词名词外
to have done 目的状语to have done 引出目的状语,这是怎么回事?这语法是属于非谓语动词的用法还是什么?我看了语法书,可是没有说啊,
语法——情态动词Research findings show we spend about two hours dreaming every night,no matter what we ____have done during the day.横线上填may,请解释语法并翻译.为什么不能用 could?
英语翻译1电影票都卖光了The film tickets___________________________________2我去过北京三次I've____________________________________________3这幢教学楼大楼,已经投入使用5年了This teaching building has__________________________4上个月我们在那儿呆了一个星期Last month,we___________________________________5再次见到凯特时,我们不停地问了她许多问题When__________________________________________
一般过去式和过去完成时有什么区别?例如：他完成了作业.应该用过去时还是过去完成时?

情态动词+have done 用法及意义

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