师梦圆 - 让备课更高效、教学更轻松!
网站地图
师梦圆
师梦圆初中英语教材同步人教版八年级下册Section A Grammar focus 4a—4c下载详情
  • 下载地址
  • 内容预览
下载说明

1、本网站免费注册后即可以下载,点击开通VIP会员可无限免费下载!

2、资料一般为word或PPT文档。建议使用IE9以上浏览器或360、谷歌、火狐浏览器浏览本站。

3、有任何下载问题,请联系微信客服。

扫描下方二维码,添加微信客服

师梦圆微信客服

内容预览

  I have't seen her for four years.

  我有四年没见到她了。

  (3)表示说话前发生过一次或多次的动作,现在成为一种经验,一般译为汉语“过”,常带有twice,ever,never,three times等时间状语。

  如: I have been to Beijing twice.我去过北京二次。

  3.现在完成时的时间状语

  (1)现在完成时属于现在时范围,故不能和过去的时间状语连用。如:yesterday,last Sunday,in1990,three years ago等。但是,在强调动作产生的后果和影响时,可以和一些表示不确定的时间状语连用。

  a. 用副词already和yet。already一般用于肯定句中,yet一般用于否定句和 疑问句中。如:We have already finished our homework.我们已完成作业了。

  They haven't finished their homework yet.他们还没有完成作业。

  b.用ever 和never。多用于否定或疑问句中,表示“曾经”或“从未“等。 如:-Have you ever been to the Great Wall?你曾经去过长城吗?

  -I have never been to the Great Wall.我从未去过长城。

  c.用表示到说话为止的过去时间状语,如just,before,up to now,the past few years等。例如:I have seen her before,but I can not remember where.

  我以前见过她,但记不起在哪里见过。

  He has been there three times the last few days.

  近几年他去过那里三次了。

  d.用包括“现在”在内的时间状语,如:now,today,this morning(month,year,term)等。例如:-Have you met him today?-No,I haven't.

  今天你见过他吗?我 没有。

  How many times have you been there this year?

  今年你去过那里多少次?

  (2)现在完成时可以和带有since或for等表示“一段时间”的状语连用,表示动作或状态从某一时刻开始,一直持续到现在。如:I haven't seen him for two years. 但是,像come,arrive,buy等终止性动词不能与表示“一段时间”的状语连用。要用,必须改为“be(在)”等延续性动词来表述。现归纳总结一下由非延续性动词到延续性动词的转换:

  arrive→be here begin(start)→be on

  die →be dead come back→be back

  leave →be away fall ill(sick,asleep)→be ill(sick,asleep)

  get up→be up go out →be out

  finish →be over put on →wear 或be on

  open →be open join →be in或 be a member of…

  close →be closed go to school→be a student

  borrow →keep buy →have

  catch(a cold)→ have(a cold) get to know →know

  begin to study→study come to work→work等

  如:He has been a soldier for three years.他参军三年了。

相关资源

教材