文档介绍：Unit 2 Travelling
Grammar
Learning aims
“have/has been to”和“have/has gone to”的用法。
,以及它们之间的转换。
Revision
Use the correct forms of the verbs in brackets.
The old man _______(live) here since 1992.
_____ you _______(visit) our factory yet?
3. I __________ (not see) you for a long time. You ___________(change) a lot.
4. I’m afraid I __________(keep) you waiting for such a long time.
5. He __________(know) the city since he was very young.
has lived
have
visited
haven’t seen
have changed
have kept
has known
现在完成时是由助动词have(has)+过去分词构成。现在完成时表过去发生的某一动作对现在造成的影响或结果, 或表示过去已经开始,持续到现在的动作或状态,也可以表示实质可能继续下去的动作或状态。通常和 for, so far(至今), by now(直到现在), these days, in the last ten years 等连用。
现在完成时与一般过去时的用法比较
现在完成时表示过去的动作一直延续到现在甚至会继续下去或表示过去的动作对现在造成的影响;一般过去时表示动作发生的时间在过去。现在完成时属于现在时态范围,因此,不能和表示过去的时间状语连用。如:yesterday, last night, two weeks ago等.
比较:
plane has arrived . 飞机已经来了。
(说明现在的情况:飞机在这儿)
plane arrived a quarter ago.
飞机是一刻中以前来的。
(强调动作发生的时间在过去)
3. I have taught here for fifteen years.
我在这儿已经教了十五年。
(表示十五年前的动作一直延续到现在,还可能会继续。)
4. I taught here for a year.
我过去在这儿教过一年。
(表示“我“现在已经不在这儿任教了)
现在完成时与一般过去时的用法比较
现在完成时表示过去的动作一直延续到现在甚至会继续下去或表示过去的动作对现在造成的影响;一般过去时表示动作发生的时间在过去。现在完成时属于现在时态范围,因此,不能和表示过去的时间状语连用。如:yesterday, last night, two weeks ago等.
比较:
时态填空:
----Are you sure you __________ (lose) the book?----Yes, I ___________(look) for it everywhere, but I still can’t find it.
have lost
have looked
_____ already _____ (copy) these words.
have
copied
3. Jim _____________(just, watch) a football match. He is so tired and hungry.
has just watched
4. ______you ever _______(travel) on a train?
Have
travelled
5. ---______ they _______(see) the film yet?
---Yes. They __________ (see) it already.
----When ______ they ______ (see) it?
----They _______(see)it just now.
Have
seen
have seen
did
see
saw
6.---- ______ her sister ______(be) to Nanning?
----No, she_____________ ( never, be) there before.
Has
been
h