早教吧作业答案频道 -->其他-->
请问这篇文章为什么开头用现在完成时DanRobinsonhasbeenworriedallweek.LastTuesdayhereceivedaletterfromthelocalpolice.Intheletterhewasaskedtocallatthestation.Danwonderedwhyhewaswantedbythepolice,buthewe
题目详情
请问这篇文章为什么开头用现在完成时
Dan Robinson has been worried all week.Last Tuesday he received a letter from the local police.In the letter he was asked to call at the station.Dan wondered why he was wanted by the police,but he went to the station yesterday and now he is not worried anymore.At the station,he was told by a smiling policeman that his bicycle had been found.Five days ago,the policeman told him,the bicycle was picked up in a small village four hundred miles away.It is now being sent to his home by train.Dan was most surprised when he heard the news.He was amused too,because he never expected the bicycle to be found.It was stolen twenty years ago when Dan was a boy of fifteen!
现在完成时不是应该 从过去持续到现在吗 这是过去的某段时间一直在i做某事 应该是过去进行时
Dan Robinson has been worried all week.Last Tuesday he received a letter from the local police.In the letter he was asked to call at the station.Dan wondered why he was wanted by the police,but he went to the station yesterday and now he is not worried anymore.At the station,he was told by a smiling policeman that his bicycle had been found.Five days ago,the policeman told him,the bicycle was picked up in a small village four hundred miles away.It is now being sent to his home by train.Dan was most surprised when he heard the news.He was amused too,because he never expected the bicycle to be found.It was stolen twenty years ago when Dan was a boy of fifteen!
现在完成时不是应该 从过去持续到现在吗 这是过去的某段时间一直在i做某事 应该是过去进行时
▼优质解答
答案和解析
过去进行时指的是过去某一刻时间正在进行的动作.是指时间点比如at six last night.而文章第一句all week是指一段时间,因此要与现在完成时连用.
看了 请问这篇文章为什么开头用现在...的网友还看了以下:
已知数列an是各项均不为0的等差数列,Sn为其前n项和,且满足S2n-1=1/2an^2,数列bn 2020-04-09 …
一次函数y=mx+n当m n为何值时函数图像过原点m n为何值时图像与y轴的交点在x轴上方m n为 2020-05-13 …
1.已知数列{a(n)}满足a(n)a(n+1)a(n+2)a(n+3)=24,且a1=1a2=2 2020-07-09 …
一次函数与整式的几道题1、若X的平方+KX-15=(X+3)(X+B)则K为?2、三角形边n为1时 2020-07-15 …
已知数列an的通项和为n(n+1)而数列bn的第n项bn,等于数列an的第2的n次方既bn=A下标 2020-07-29 …
如果一个函数n阶可导,且在x0点前n-1阶导数都等于0,第n阶导数不为0,当n为偶数时,则x0为极 2020-07-31 …
已知数列{An}满足递推关系式:A(n+1)=1/2An^2-An+2,n>=1,n为整数.(1) 2020-08-01 …
用数学归纳法证明“当n为正奇数时,xn+yn能被x+y整除”的第二步是()A.假使n=2k+1时正 2020-08-01 …
已知n为正偶数,用数学归纳法证明()1时,若已假设n=k(k≥2为偶数)时命题为真,则还需要用归纳 2020-08-01 …
已知一个边长为a的等边三角形,现将其边长n(n为大于2的整数)等分,并以相邻等分点为顶点向外作小等 2020-08-01 …