since和for后面接时间,那前面的时态是不是都用现在完成时?
来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/15 11:35:32
since和for后面接时间,那前面的时态是不是都用现在完成时?
Since = 自从;从...以来
For = (表示多长时间)
如果 since 和 for 后面接时间,那么 since 前面用现在完成时或现在完成进行时,for 前面可以用一般现在时、一般过去时、一般将来时、现在完成时、现在完成进行时、过去完成时,过去完成进行时、将来完成时,比如:
I have played the piano since last year.
I have been playing the piano since last year.
I play the piano for 3 hours every day.
I played the piano for 3 hours yesterday.
I am going to play the piano for 3 hours this weekend.
I have played the piano for 2 years (now).
I have been playing the piano for 2 years (now).
I had played the piano for 2 years.
I had been playing the piano for 2 years.
By the time I reach 30,I will have played the piano for 5 years.
Since 的其他用法及用法说明,请参考《结束蹦单词时代:外教教你用连词》,中国书籍出版社.
For = (表示多长时间)
如果 since 和 for 后面接时间,那么 since 前面用现在完成时或现在完成进行时,for 前面可以用一般现在时、一般过去时、一般将来时、现在完成时、现在完成进行时、过去完成时,过去完成进行时、将来完成时,比如:
I have played the piano since last year.
I have been playing the piano since last year.
I play the piano for 3 hours every day.
I played the piano for 3 hours yesterday.
I am going to play the piano for 3 hours this weekend.
I have played the piano for 2 years (now).
I have been playing the piano for 2 years (now).
I had played the piano for 2 years.
I had been playing the piano for 2 years.
By the time I reach 30,I will have played the piano for 5 years.
Since 的其他用法及用法说明,请参考《结束蹦单词时代:外教教你用连词》,中国书籍出版社.
since和for后面接时间,那前面的时态是不是都用现在完成时?
for表时间__后跟__时间 + since后面跟__时态,前面出现__时态.
是不是since引导的从句无论是什么时态主句都用现在完成时
现在完成时的几个问题现在完成时的语法是规定在句末加上时间短语时:for+时间段,since+时间点那时间段和时间点的区别
用since造句是现在完成时,since后面的时间点最好是几点几点,要翻译
since 后面用现在完成时?
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用since和for各造5句现在完成时的句子.
since 和for在现在完成时的使用
现在完成时中since和for的区别
现在完成时中的for和since的定义?