现在完成时态课件

.2.We _h_a_v_e__b_e_e_n_t_o__the Great Wall twice.
It’s very beautiful.
3.The Greens _h_a_v_e_b__ee_n__i_n__China for three
years
have/has gone to have/has been to have/has been in
Kate has lived here since 2000.
Kate has lived here since 9 years ago.
film before.
Exercises
▪ 1. I h__a_v_e_h_a_d_(have) lunch already. ▪ 2. Has the train_a_r_r_iv_e_d_ (arrive), yet? ▪ 3.Tom _h_a_s_ never__b_e_e_n__to(be to ) China. ▪ 4. The twin __h_a_s__just _s_e_e_n_(see) my
Present Perfect Tense
现在完成时
Present perfect tense 现在完成时
▪ 构成:
have/has + 过去分词
（过去分词的变化分规则与不规则两种。 规则变化与过去式相同，不规则变化需要另记 ）
过去分词的构成
(1)规则动词的过去分词和它的过去式相同,即 在原形后加－ed（以e 结尾的加－d）
go- gone
take- taken
二、构 成
▪ A.肯定句
主语＋助动词have\ has + 动词过去分词 +…… B.否定句
主语＋助动词have\ has + not + 动词过去分词+…… C.一般疑问句
助动词Have\ Has +主语+动词过去分词+……
肯定回答： 否定回答：
Yes,主语+have/has No,主语 + have/has
1.他以前曾去过上海。 He has been to Shanghai before. 2.他去上海了。 He has gone to Shanghai. 3.他在上海10年了。 He has been in Shanghai for ten years
have/ has been in/at 逗留在某地(已经一段时间).常 和for ten days, since I came here等连用.
▪ work- worked
arrive- arrived
(2). 以y结尾的改y为i+ed
study- studied
try-tried
(3).以重读闭音节结尾的双写最后一个字母＋ed
stop-stopped
drag-dragged
பைடு நூலகம்
(4).有些动词得过去分词是不规则的，需要
逐个记忆。（背熟不规则动词表）
▪ 用法三：
表示过去已经开始，一直持续到现在的动 作或状态,并且有可能再持续下去。动词
使用延续性动词。常与for或 since引导的时间状语连用
for+一段时间 since+一个时间点 since+一段时间 ago since+时间状语从句（一般过去时）
E.g. Kate has lived here for 9 years.
➢ already 多用于肯定句句中或句末 ➢ Eg: I have already finished it . ➢ just 一般用于肯定句中，谓语动词前 ➢ I have just met him. ➢ yet 用于否定句和疑问句末 ➢ eg: Has he finished his homework yet ? ➢ ever 多用于疑问句 ➢ Eg: Has Jane ever been to Shanghai ?
not
D. 特殊疑问句：
haven’t/hasn’t
特殊疑问词+have/has +主语 +动词过去分词+……
▪ He has already read the book. ▪ (改写否定/疑问/特殊疑问句）
He hasn’t read the book yet.
Has he read the book yet?
▪ have/has gone to:去了某地（已经去了或在 途中，还没有返回）；
▪ have/has been to:去过某地（曾经去过某 地，现在已经回来了,后面可接表示“次数” 的状语）;
▪ have/has been in:呆在某地（表示某人“已 在某地停留一段时间，现仍在那里”，其 后常带表示一段时间的状语）。
What has he read yet?
用法一：
1.表示过去的发生的动作对现在造成的影
响或结果。
例如： I have just cleaned my clothes．我刚洗过 衣服。 （“洗衣服”是发生在过去的动作，对现在造 成的结果是“衣服干净了”）。
➢ 它的时间状语通常为already“已经”，just“刚 刚”，ever“曾经”，yet“尚，还,已经”， never“从来没有”,before“在……以前”等。
father.
用法二
have/has gone to
A
have/has been to +地点A
have/has been in/at
A
B B
B
stay
1.A: Where’s Jim, Li Lei?
B: He __h__a_s_g_o_n_e_t_o___his school library.
▪ 用already，just，ever，yet，never填空
▪ 1. Have you _e_v_e_r_ visited the Geat Wall? ▪ 2.He has a_l_re_a_d_y finished his homework,
so he can go to play basketball . ▪ 3.He has_j_u_s_t__left, when you come back. ▪ 4.Have you watered the plants _y_e_t___ ? ▪ 5.I have _n_e_v_e_r_seen such an interesting