标题: 曼哈顿上一段关于现在完成时的知识点看不懂，求解答 [打印本页] 作者: xushi19911011 时间: 2012-7-25 11:26 标题: 曼哈顿上一段关于现在完成时的知识点看不懂，求解答 Note that it is fine to write Veronica has traveled all over the world and omit any specific, completed time reference. In this case, you are making a statement about Veronica today (the kind of person she is, her experience and qualities, etc.). Because of this emphasis on the present time, the Present Perfect tends to work better in sentences with Simple Present than in sentences with Simple Past or Past Perfect. Finally, the idea of completed action can be used simply to place a Present Perfect action earlier than another action in -Ing forms, infinitives or subordinate clauses. Right: She WILL PAY you when you ASK her. (the time of will pay = the time of [will] ask; note that the future will is often dropped in subordinate clauses) Right: She WILL PAY you when you HAVE TAKEN out the garbage. (the time of will pay is LATER than the future time of have taken)
这是现在完成时知识点的最后几段话 这几段在讲什么？找了几个曼哈顿笔记好像都刻意的把这几段避开了作者: 2013fallBiz 时间: 2012-7-25 11:42
这里说的是当没有或省略since这样很明显的时间副词时完成时态的用法. 需要你通过发生动作的先后顺序来判断时态.作者: xushi19911011 时间: 2012-7-25 11:59
Finally, the idea of completed action can be used simply to place a Present Perfect action earlier than another action in -Ing forms, infinitives or subordinate clauses.
