Summary (1):
我们用现在完成时谈论发生在过去， 但是对现在仍有影响的事.
现在完成时 PK 一般过去时：
1. She has cleaned the room.
(房子现在是干净的)
1.She cleaned the room. (房子现在是否干净不知道)
现在完成时 PK 一般过去时：
1.现在完成时: 强调动作对现在产生了结
Summary (4):
我们用现在完成时表示反复发生的动作。
1.You don't need to describe her. I ___ her several times. A. had met B. have met C. met D. meet
I
______________(read) have read your article three times.
have just The police __________ finished __________
(just finish)
searching the area.
have just arrived “I ____________(just arrive) by train.” she said.
—Where _________ B the recorder? I can’t see it anywhere. — I ____ it right here. But now it’s gone. A. did you put; have put B. have you put; put C. had you put; was putting D. were you putting; put 第一个空“放”这个动作强调对现 在的影响，“我找不到”第二个空 “放”指过去的一个动作
The boy has already come here.
I haven’t heard anything from him yet. Notes 1: 我们肯定句中用 already ， 否定句或疑问句中用yet.
用never, ever, already, yet, 填空 never seen him before, so I 1. I have _______ have no idea about him. already finished his 2. Jack has _________ homework since an hour ago. 3. Mr. Wang hasn’t dismissed the idea yet ____. ever 4. “Have you ________ seen the film?” never seen it.” “No, I have ________ yet 5. “Has the bus left _______?” “Yes, it already left.” has _________
I have known him for a long time.
He has not completed the work.
Has the postman come yet this morning?
the Present Perfect Tense
Form: have/has + done Negative form: have/has not done Question form: Have/Has +主语+done
Summary (2):
我们用现在完成时谈论开始于过去， 并且还持续到现在的事。
I have not seen Justin since last Friday night.
Exercise
has gone Beth isn’t here. She_________(go) to Beijing.
B 2.I bought a new house, but I ___ my old one yet, so at the moment I have two houses. A. didn’t sell B. haven’t sold studied 3.I ______ (study) in Zhentou middle school for three years, but now I’m is dirty. D — I know. It ________ for weeks. A. hasn’t cleaned C. wasn’t cleaned B. didn’t clean D. hasn’t been cleaned
Summary (3):
我们用现在完成时谈论刚刚完成的 动作。
Look, the window is open. Eric opened the door just now.
has already opened Eric _____________ (already open) the window.
过去的动作: Eric opened the window. 也与现在相关: The window is open.)
果和影响. 2.一般过去时: 只表示过去的动作和状态. 强调动作. 若有时间状语：yesterday, last
week，…ago, in1980, in October,
just now,用一般过去时
wrote 1.Tom _____(write) a letter to his mother last night.
Summary (5):
当某个行为发生的确切时间不很清楚或 不重要. 出现下面的这些时间表达方式 我们用现在完成时:
already, ever, for, just, lately, never,
recently, since, yet, so far，by的短语,
in the past/last+段时间
It’s well written.
Read the following sentences:
Have you watched any good shows lately/recently?
Great changes have taken place in China in the past fifty years. We have learned 1000 words by now/ up to now/ so far.