1、Unit 2现在完成时(Present Perfect)现在完成进行时(Present Perfect Progressive),现在完成时,现在完成时既可用动作动词表示,也可用状态动词表示。一个是“已完成”(“Finished” Use)用法,一个是“未完成”(“Unfinished” Use )用法。不能与确定的过去时间的状语连用。 当表示过去时间的状语是由Since作介词或连...
1、现在完成时(The present perfect tense )的用法小结一、构成:助动词 have / has+ p.p (动词的过去分词)二、用法:现在完成时既涉及过去,又联系现在。用法一:表示过去发生或已经完成的某 一动作对现在造成的影响或结果。常与 just (刚刚),already (已经),never (从来没 有),ever (曾经),before (以前)...
现在完成时(The present perfect tense)的用法小结 一、构成:助动词have / has+p.p(动词的过去分词) 二、用法:现在完成时既涉及过去,又联系现在。用法一:表示过去发生或已经完成的某一动作对现在造成的影响或结果。常与just(刚刚),already(已经),never(从来没有),ever(曾经),before(以前),yet(仍然),once(一...
现在完成时（PresentPerfect）现在完成进行时（PresentPerfectProgressive）现在完成时 •现在完成时既可用动作动词表示，也可用状态动词表示。一个是“已完成”（“Finished”Use）用法，一个是“未完成”（“Unfinished”Use）用法。不能与确定的过去时间的状语连用。•※当表示过去时间的状语是由Since作介词或连词引导...
二、用法:现在完成时既涉及过去,又联系现在。用法一:表示过去发生或已经完成的某一动作对现在造成的影响或结果。常与just(刚刚),already(已经),never(从来没有),ever(曾经),before(以前),yet(仍然),once(一次),twice(两次),many times(很多次),how many times(多少次),so far(迄今为止),during the past(...
Present perfect tense Form: have/has done… 通常使用现在完成时的几种情况: 1 表示发生在过去对现在仍有影响的动作。 I have read the book. 2 表示过去发生一次或多次的动作。 We have all played football. 3 表示过去开始的动作一直延续到现在,只 能用于某些带有延续意义的动词,常与 for, since, so ...
(Grammar) a participial form of verbs used adjectivally when the action it describes is contemporaneous with that of the main verb of a sentence and also used in the formation of certain compound tenses. In English this form ends in-ing. Comparegerund ...
Existential Perfect: Lola has seen “Casablanca” 23 times. Describes at least a single occurrence of some past event. As for using the perfect versus the present We've often talked about emigrating. We often talk about emigrating. Both can be used to describe the same situation. Aside from...
More Examples of the Present Perfect Progressive Tense Juliehas been relyingon a pay rise to pay her student loan. (Julie might still be relying on a pay rise, or she might have received the pay rise. You can't tell from this sentence. However, this information is just setting the scene...
final ie becomes y lie – lyingUse of Present Perfect Progressiveputs emphasis on the duration or course of an action (not the result) Example: She has been writing for two hours. action that recently stopped or is still going on Example: I have been living here since 2001. finished ...