早教吧作业答案频道 -->英语-->
ever能用在过去完成时吗,如果能,请举个例子ever是过去完成时的特征词吗?
题目详情
ever能用在过去完成时吗,如果能,请举个例子 ever是过去完成时的特征词吗?
▼优质解答
答案和解析
过去完成时标志:had+过去分词,表示过去某事之前某事已经发生.
过去完成时是一种相对时态,一定要有一个作参照的过去时间或过去动作作比较,否则,就不能用过去完成时.
除此以外,过去完成时还用于以下情况:
■表示从过去某一时刻开始一直延续到另一过去时刻的动作或状态.跟现在完成时一样,也常与 how long, for three days, before 等表示一段时间的状语连用.如:
When Jack arrived he learned Mary had been away for almost an hour. 当杰克到来时,他才了解到玛丽已经离开差不多一个小时了.
■表示未曾实现的希望或打算.表示希望或打算的动词,如hope, want, expect, think, suppose, plan, mean, intend等的过去完成时,后接不定式to do时,表示未曾实现的希望或打算,即“本来希望或打算做某事(但却没做) ”.如:
I had hoped to send him a Christmas card,but I forgot to do so. 我本来希望寄给他一张圣诞卡的,但我忘了寄了.
I had intended to come over to see you last night,but someone called and I couldn’t get away. 昨晚我本想去看你的,但有人来了我走不开.
■用于下列4个特殊句型中:
1. hardly…when…, no sooner…than…
2. It/ That /This was the first time that…
3. It was+时间段+since…
4. …than sb. had thought /expected /hoped /wanted等.
Hardly had I opened the door when he told me. 我刚开开门,他就告诉了我.
He had no sooner bought the car than he sold it. 他刚买了这辆车,转眼又卖了.
It was the second time he had been out with her. 这是他第二次和她一道出去.
It was more than a year now since he had seen her. 他上次见她以来已经一年多了.
We arrived earlier than we had expected. 我们到得比预料的早.
综上所述,ever 能够用在过去完成时,只要语境正确.
例如Ever since when he was little,he had done many performances and competitions while he lived his life in Thailand as a young boy.
但ever并不是过去完成时的特征词.
过去完成时是一种相对时态,一定要有一个作参照的过去时间或过去动作作比较,否则,就不能用过去完成时.
除此以外,过去完成时还用于以下情况:
■表示从过去某一时刻开始一直延续到另一过去时刻的动作或状态.跟现在完成时一样,也常与 how long, for three days, before 等表示一段时间的状语连用.如:
When Jack arrived he learned Mary had been away for almost an hour. 当杰克到来时,他才了解到玛丽已经离开差不多一个小时了.
■表示未曾实现的希望或打算.表示希望或打算的动词,如hope, want, expect, think, suppose, plan, mean, intend等的过去完成时,后接不定式to do时,表示未曾实现的希望或打算,即“本来希望或打算做某事(但却没做) ”.如:
I had hoped to send him a Christmas card,but I forgot to do so. 我本来希望寄给他一张圣诞卡的,但我忘了寄了.
I had intended to come over to see you last night,but someone called and I couldn’t get away. 昨晚我本想去看你的,但有人来了我走不开.
■用于下列4个特殊句型中:
1. hardly…when…, no sooner…than…
2. It/ That /This was the first time that…
3. It was+时间段+since…
4. …than sb. had thought /expected /hoped /wanted等.
Hardly had I opened the door when he told me. 我刚开开门,他就告诉了我.
He had no sooner bought the car than he sold it. 他刚买了这辆车,转眼又卖了.
It was the second time he had been out with her. 这是他第二次和她一道出去.
It was more than a year now since he had seen her. 他上次见她以来已经一年多了.
We arrived earlier than we had expected. 我们到得比预料的早.
综上所述,ever 能够用在过去完成时,只要语境正确.
例如Ever since when he was little,he had done many performances and competitions while he lived his life in Thailand as a young boy.
但ever并不是过去完成时的特征词.
看了 ever能用在过去完成时吗,...的网友还看了以下:
最基础一次函数下列说法不正确的是1.公式V=4/3πr^3中,4/3和π是常量,r是自变量,V是r的 2020-03-31 …
下列说法中不正确的是A.函数V=4/3πr³中,4/3是常量,r是自变量,V是πr的函数B.代数式 2020-05-13 …
在球的体积公式v=43πr3中,下面说法正确的是()A.v,π,r是变量,43是常量B.v,r是变 2020-05-13 …
怎么用Matlab得到函数的曲线图函数如下:S= -R^2*asin((R-V*t)/R)-((R 2020-05-16 …
一道矢量题一质点以常速率以V在半径为r而圆心在坐标原点的圆周上运动:(1)写出速度v关于时间t的矢 2020-06-14 …
请问这个怎么判断是否有最大值或者最小值?S(r)=2πr²+2V/r(r>0)这个S(r)的最值怎 2020-06-15 …
谁能帮我组个英语单词①e、n、o、p、t、w、y②e③d、t、y④b、c、f、m、p、r、t、v⑤ 2020-07-29 …
一道关于函数的问题.下列说法不正确的是()A.公式V=(4/3)兀r中,(4/3)是常量,r是自变量 2020-11-03 …
双星问题中v=wrv=√GM/r辨析双星问题中若两星线速度之比是1:2,角速度相等根据V=ωr得出半 2020-11-11 …
关于万有引力公式的一些问题v为第一宇宙速度1.根据公式GMm/R^2=mv^2/R可以得出GM/V^ 2020-12-01 …