since后面加什么时态(since)
您好,今天小编胡舒来为大家解答以上的问题。since后面加什么时态,since相信很多小伙伴还不知道,现在让我们一起来看看吧!
1、这是我的教案,供你参考: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、 (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、 (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、 (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”。
5、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。
6、 (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”。
7、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。
8、 (6)注:当since用于否定句时,主句的谓v.可以是终止性动词。
9、如 He hasn’t seen the film since last month. (7)相关词组:“从那时起”:ever since、since then、from then on. 注:ever since作为一个词组,放句尾可单独使用。
10、如I have given up smoking ever since. 另外,还可在since后接句子。
11、since前加ever,只是加重语气而已。
12、如 I have given up smoking ever since I caught a bad cough. (8) since还可引导原因状语从句,译作“由于;因为”,相当于because。
13、如 Since he was lazy, he didn’t finish his homework.希望我的回答能够帮到你,望采纳!祝你学习进步,天天快乐。
14、O(∩_∩)O。
本文就为大家分享到这里,希望小伙伴们会喜欢。