He has made great progress since he came to our school.为什么从句用一般过去式,主句用现在完成时?

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He has made great progress since he came to our school.为什么从句用一般过去式,主句用现在完成时?
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He has made great progress since he came to our school.为什么从句用一般过去式,主句用现在完成时?
He has made great progress since he came to our school.
为什么从句用一般过去式,主句用现在完成时?

He has made great progress since he came to our school.为什么从句用一般过去式,主句用现在完成时?
本句意思是“自他来到我们学校以后,他取得了巨大进步.”
现在完成时用一般过去式从句作为“时间点”是正确的.这里的SINCE表示 “自.以后”.

参照since的用法：
译作“自从…以来”
(1)接时间点：如 I have stayed in that country since 1995. 要求：谓v.用现在完成时，而且须是延续性动词。
(2)接一段时间 + ago：如 They have lived in that house since two years ago. 要求：谓v.用现在完成时...

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参照since的用法：
译作“自从…以来”
(1)接时间点：如 I have stayed in that country since 1995. 要求：谓v.用现在完成时，而且须是延续性动词。
(2)接一段时间 + ago：如 They have lived in that house since two years ago. 要求：谓v.用现在完成时，而且须是延续性动词。
(3)接时间状语从句：如 I have loved her since I met her last time. / Lily has stayed at home since she left school. 要求：主句的谓v.用现在完成时，而且须是延续性动词；从句的谓v.用一般过去时，而且须是终止性动词。
(4)用于句型“It’s / It has been + 一段时间 + since + 时间状语从句”中，译作“自从…以来, 已经…(时间)了”。如 It’s / has been three months since he moved to this city. 要求：主句的谓v.用一般现在时或现在完成时；从句的谓v.用一般过去时，而且须是终止性动词。
(5)用于句型“一段时间 + has passed since + 时间状语从句”中，译作“自从…以来, …
(时间)已经过去了”。如上个例句还可写成：Three months has passed since he moved to this city. 要求：主句的谓v.用现在完成时，而且动词必须是has passed；从句的谓v.用一般过去时，而且须是终止性动词。

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He has made great progress since he came to our school.
since 加过去时。完成时指的是从过去开始发生，一直持续到现在，并对现在造成一定的影响或结果。所以since后常用用一般过去时态，而前面也常用现在完成时。

He has made a great p______ in his math. he has made great contribution to the causeof educationfanyi He has made great ______in his studies 用advance填空 He has made great progress thos term.变为感叹句, David has made great progress recently so he has and so have you, _____(obvious),he has made great progress i_____(obvious),he has made great progress in his studly with the teachers help 将单词填写完整 1.A person with high r__means he has made great contributions in his field.2.It is our great honour to invite the famous l__to give us a speech.3.The plot of the film was so c___that l couldn't follow it.4.We must apply t__to pr So hard has he worked in the past few months that he has made great progress in English翻译汉语 He has made great p____ with his English.I feel happy for this. ——great progress he has made!A how B how a C what Dwhat a 状语从句改错：He has made so great progress that we all feel happy. Tom has made great progress.He did a lot_____ (bad)last time This is good for studying.为什么不是study为什么不是That is good 1for study.study不是也可以作名词吗?百度词典：study名词 n.1.学习;研究;调查[U][P1]The plan is under study.那个计划正在研究中。He has made great pr ,John has made great progress ---- and ,So he has ；so have you 回答为什么是这样呢?不懂? Bruce has made great progress recently.____and____.A.So he has ;so you haveA.So he has ;so you have B.So he has;so have youC.So has he; so have youD.So has he; so you have 1-David has made great progess recently -__,and __A.So he has;so you are B.so he has ;so have y1-David has made great progess recently -__,and __A.So he has;so you are B.so he has ;so have youC.so has he;so have youD.so has he;so you have求解释, Because he works very hard＿＿ he has made very great progress.Aand B so C but D...Because he works very hard＿＿ he has made very great progress.Aand B so C but D / 选哪个,, He has made great progress since he came to our school.为什么从句用一般过去式,主句用现在完成时?