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Presentperfecttense现在完成时
构成:
用法一:
,也就是强调现在的影响和结果.
主语+have/has+过去分词
与一般过去时的区分
一般过去时:有表示过去时间点的提示词
.
Hismotherreceivedgreatpresentsonmother'sday.
,不能和具体的时间状语连用;
(last,ago,yesterday,etc.)
present
past
Ihavelivedherefortwoyears
Ilivedthere2yearsago
:00
Hehashadhisbreakfast.
?
IwatchedthefootballmatchonTVat9:00.
用法二:
for+段时间
since+点时间
since+句子(过去时)
.
Katehaslivedheresince3yearsago.
KatehaslivedheresinceshecametoChina.
表示过去某个时间起先的动作或存在的状态,始终持续到现在并可能还将持续下去。动词运用持续性动词。常与for或since引导的时间连用
Hisfatherhasdied.(for2years)
Thefootballmatchhasbegun.(since9:)
Hisfatherhasbeendeadfor2years.
Thefootballmatchhasbeenonsince9:.
重点句型: Itis/hasbeen+段时间+since从句 段时间+haspassed+since从句
:
Hediedtwoyearsago.
Hehasbeendeadfortwoyears/sincetwoyearsago
Itis/hasbeentwoyearssincehedied.
Twoyearshaspassedsincehedied.
这本书我借了一个月了。
Iborrowedthisbookamonthago.
Itis/hasbeenamonthsinceIborrowedthebook.
Ihavekeptthebookforamonth./sinceamonthago.
AmonthhaspassedsinceIborrowedthebook.