更新1: 请用中文解释~~~~谢谢~~~~
更新2: 003是否指两者皆可？
更新3: 我还是弄不清楚什么情况下有关系 什么时候没关系 怎么办？
更新4: 004，选What have you bought？是否因为该问题没有提供时间限制？
应该是: What have you bought ? 你不能弄清楚的原因不是这两句子的解释或什么时候什么关系. 是因为你对各种时式/时态 (TENSES) 的运用和表达空间还未能准确地掌握. What did you buy ? => Simple Past Tense 简单过去式 运用: 过去 现在 将来 _______________│_______________ │简单过去式│ 1. 用以表达在过去时间空间里
已完成的动作. 句子里应包含有时间空间的界限. 例: I did this sort of questions when I was in junior high school. I went Yumcha and visited The Ocean Park yesterday. When did you do your homework ? 2. 用以表达过去时间空间里的习惯. 例: I never drank wine. I learned French in the primary school. What have you bought ? => Present Perfect Tense 现在完成式 运用: 过去 现在 将来 _______________│_______________ │现在完成式---> 1. 用以表达没有提供时间空间的过去动作. 例: I have seen this movie. (没提供时间空间) I have done my homework. (没提供时间空间) What have you bought ? (没提供时间空间) 2. 用以表达一个在过去开始而仍然进行的动作. 例: I have worked with this pany for 2 years. (现在仍然是) It has been very cold this year. (现在仍然是) I have read 2 story books this month (提供时间空间
但现在还是这个月
仍然进行 ) 错误: I have done my homework yesterday. (提供时间空间是昨天
现在是今天便是超越了时式的界限) 应该说: I did my homework yesterday. 错误: When have you done your homework ? (When是提供时间空间
指引了时式的界限) 应该说: When did you do your homework ? 如会话说: John: I went to Ocean Centre yesterday. Mary: Really
what have you bought ? (错误
因有提供时间空间=yesterday) 应该说: Really
what did you buy ? 2011-06-23 14:20:30 补充： 因字数到了上限
在这回答你. 是 => 因没有提供时间空间的过去动作. 例如: yesterday
this morning..等等. 过去动作 = 已完成 或 刚完成 动作 (动作或结果没改变). 谢谢.
你妈从街市买完𩠌返来
可能刚进入门口
或数分钟前
虽然买𩠌已经完
你可以说 What have you bought? 你妈上午街市买完𩠌
你下午才问
你要用What did you buy?
如果一个动作影响到现在
就可用现在完成. 如你用过去式
那就表示"You bought X"这件事已经跟现在没相干. 如果"you"刚"buy"完回来
那就可以用现在完成式. 因为很可能你发问的焦点并不是在"过去"买了甚么. 你真正的焦点是"现在"这一刻到式已经"bought"了甚么. 你要记住
simple past 是一种过去式
而present perfect 是一种现在式 2011-06-09 00:06:03 补充： 如果你叫了"you"出去买火柴
现在"you"回来了
你会说 "Did you buy any matches"吗? 还是用现在完成式呢? 但是
如果你问"you"在哪里买火柴
你会用现在完成式吗? 还是"Where did you buy the matches" 呢? 当你问有没有买火柴时
你的焦点是"现在"有没有火柴. 所以用现在完成. 但问哪里买时
你的焦点是"过去"
"buy"这个动作在哪发生. 用过去式.
What did you buy? We won't use present perfect tense as the action mother bought is happened in the past only and it's not to keep going to do from the past to the present continuously. So
using past tense 's ok. by Jeffrey cytc-jeffrey.blogspot/
What have you bought
because your mother just came back!!!