When能否对完成时提问?When能否对完成时提问?以下句子是否正确?:1)When have you learnt English since 2) When had you learnt English 3) When have you started to do it 4) When had you started to do it 二楼的,对此我想说

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When能否对完成时提问?When能否对完成时提问?以下句子是否正确?:1)When have you learnt English since 2) When had you learnt English 3) When have you started to do it 4) When had you started to do it 二楼的,对此我想说
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When能否对完成时提问?When能否对完成时提问?以下句子是否正确?:1)When have you learnt English since 2) When had you learnt English 3) When have you started to do it 4) When had you started to do it 二楼的,对此我想说
When能否对完成时提问?
When能否对完成时提问?
以下句子是否正确?:
1)When have you learnt English since
2) When had you learnt English
3) When have you started to do it
4) When had you started to do it
二楼的,对此我想说几句,When不是只能对过去时提问,而是只能对一个时间点提问,不一定是过去时,我以上写的句子全是一个时间点,我想知道为什么不可以。
三楼的,看下我对二楼说的,我再对你说几句,完成时并不是只能用持续性动词,也可以是短暂性动词的,如:I have finished my homework.
还有,请回答人先弄清楚现在完成时和过去完成时的区别。

When能否对完成时提问?When能否对完成时提问?以下句子是否正确?:1)When have you learnt English since 2) When had you learnt English 3) When have you started to do it 4) When had you started to do it 二楼的,对此我想说
绝对不可以.when只能对过去时提问.这可是考点哦.例如,
--Tom has come here.
--Really?When did he come?
--He came here 30 minutes ago.
你给的四个句子都不对.依我的英语教学经历,还从来没有见过这类用法.
从这四个句子看,你的问题是现在完成时、过去完成时以及过去时的区别尚不清楚.
用when提问,就是想了解已经发生过的事情是在何时发生的.既然已经发生过了,在发生的那一时刻或者那一个短暂的时间段,就只能用过去时.
还有一种可能性:你想知道某事未来何时发生,那么也可以用when来提问:--You want to go to Shanghai.When is it?或者:--When do you think it will happen?
想要搞清楚为什么这四句话不正确,一句半句说不清楚.你可以找来一本好词典(例句很多的词典),查一查when的疑问句例句.综合比较、分析一下.
另外,现在完成时、过去完成时以及过去时,有它们各自所属的、很有特点的时间状语,弄清这些对你应该有很大帮助.
另,Since when have you learnt English.就对了.(因为,since 是典型的现在完成时态的时状因素.)试想一下回答:I've learnt it since 2000.(or,since 8 years ago.)

完全正确哒``~不用担心~~

这些句子都有语法错误
首先,when不能引导完成时的提问。上一句可改为
How long have you learnt English?
或 How long have you been learning English?
其次,完成时时态动词必须是延续性动词。上三句中的start为短暂性动词,不可直接连用。<...

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这些句子都有语法错误
首先,when不能引导完成时的提问。上一句可改为
How long have you learnt English?
或 How long have you been learning English?
其次,完成时时态动词必须是延续性动词。上三句中的start为短暂性动词,不可直接连用。
可改为 When did you start to do it?
补充,延续性动词,如 Learn, lie, rain, sleep, sit, snow, stand, stay, study, teach, wait, work, write 等,可以用于现在完成时。

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When能否对完成时提问?以下句子是否正确?:1)WhenhaveyoulearntEnglis When能否对完成时提问?When能否对完成时提问?以下句子是否正确?:1)When have you learnt English since 2) When had you learnt English 3) When have you started to do it 4) When had you started to do it 二楼的,对此我想说 when是对什么提问 对什么提问用where?对什么提问用when? where and when还是when and where对划线部分提问时,先提问时间还是地点 Sydney is_hot__ when Beijing is cold 对划线部分提问 I usually sleep when it‘s raining对sleep提问 when are you coming?是对过去提问? The phone rang when Iwas watching TV.对when I was watching TV.提问 He forget when the meeting began.(对when the meeting began提问) I`m busy when people go out to dinner.对when提问 I talk to him when I am in trouble(对when I am in trouble提问) I have decided when I will start.对when I will start 提问 对流星许愿能否实现?``````````````` he is reading when it is raining.对 readinghe is reading when it is raining.对 reading 提问. when能否与完成时使用,是否因when在当(即条件状语从句)和何时(即简单句)意思时使用情况不同?书中when在条件状语从句主句和从句中举例:1.When you have got enough points,a cloud will come down and carry you o 按要求完成句子.We parents having dinner when someone was knocking at the door.(对划线部分提问)划线部分是:having dinner - - - - when someonce was knocking at the door? when were you born 能否只回答月日