此时，句中谓语动词通常是延续性动词，且常与表示一段时间的时间状语连用。如：these days, all this year, recently, for ＋时间段以及since＋时间点等等。

II. 构成：have / has ＋动词过去分词

（1）has用于主语是第三人称单数，have用于其它人称。

（2）动词的过去分词构成分为规则动词和不规则动词。规则动词在词尾加ed，其规则与过去式一样。

不规则动词要记住。例如：take－taken, go－gone等。

III.区分 have/has been to 与have/has gone to

have /has been to 和 have/has gone to 都是指已经去了某个地方，但是 have /has been to 强调的是曾经去了某个地方并回来了； have/has gone to强调的是去了某个地方还没有回来。

--Have you ever been to Shanghai? --Yes, several times.

-- Where is Mr. Wang?？-- He has gone to Shanghai.

小组展示

　　1. 个人或小组读1a的单词和对话。

　　2．听录音完成1b。

　　3. 对话练习1c.

课堂PK

单项选择。

( ) 1、Have you met Mr. Li ______？

　　 Ａ. just Ｂ. ago Ｃ.before Ｄ. a moment ago

( )2、-Our country ______ a lot so far . 　-Yes . I hope it will be even ______ .

　 　Ａ. has changed ; well Ｂ. changed ; good Ｃ. has changed ; better Ｄ. changed ; better

( ) 3、We ______ Xiao Li since she was a little girl .

　　 Ａ. know Ｂ. had known Ｃ. have known Ｄ. knew

句型转换：

1、They have been here since 2000. (对划线部分提问) have they been here?