现在完成时态 课件

Key words
yet ever
A: _H_a_v_e___ you ever __b_e_e_n__ to the
park? ( be )
B: Yes, I have.
Key words
yet ever never
I __h_a_v_e_ never __h_e_a_r_d of anything like
that. (hear )
Key words
yet ever never since
Tom h_a_s__w_o_r_k_e_d__ in the factory since he
left school ten years ago. (work )
Key words
yet ever never since for
一般疑问句: 句末(表示惊讶的语气) “难道”
Have you had breakfast already？ (表示强调)
(2) yet
否定句:句末 “还(没)” I haven’t had breakfast yet.
疑问句: 句末 “己经” Have you had breakfast yet?
最近
in/during the past/last 5 years 过去五年
by now, so far, up to now, till now 迄今
once, twice…
一次…
all/in one’s life
某人一生
（1）already
肯定句: “己经”
I’ve already had breakfast. (更常见) = I’ve had breakfast already.
can take it to your classroom . (mend )
Key words
for just
yet ever before
never since
__H_a_v_e__ you __v_is_it_e_d_ the Forbidden City
(紫禁城) before ? (visit )
(6) before 用于句末, 表示“以前”
I’ve seen it before. Has she ridden a bike before ?
Key w来自百度文库rds
yet
A: __H_a_s__ your brother __b_o_u_g_h_t __ a new
watch? (buy ) B: Not yet.
He has ever made meal. He has never made meal.
带ever的一般疑问句作否定回答时 可用“No, never.”
Have they ever travelled by train?
No, never.
(5) just 用于句中, 表示“刚刚”
I’ve just had breakfast. What have they just done?
现在完成时
The Present Perfect Tense
一 构成:
have/has+动词过去分词 (pp)
肯定 主语+have/has + pp 否定 主语+have/has not + pp 疑问 Have/Has + 主语+ pp+其他
Yes, 主+have/has. No, 主+haven’t/hasn’t.
注意：当在肯定句中含already或 just，变否定时，在句末加yet。
● I have already seen the film. I haven’t seen the film yet.
● Mother has just cleaned the house. Mother hasn’t cleaned the house yet.
I have finished my homework. I have not finished my homework. Have you finished your homework? Yes, I have./No, I haven’t.
She has been to Europe. She hasn’t been to Europe. Has she been to Europe? Yes, she has./No, she hasn’t.
A: How long __h_a_v_e_ you __ta_u_g_h_t__ in this
school? (teach ) B: For 6 years.
Key words
yet for just
ever never since
I _h__a_ve__ just _m_e_n_d_e_d__ the desk, you
(3) ever 肯定句/疑问句 : 句中 “曾经”
I’ve ever been to Beijing. Have you ever been to Beijing?
(4) never
否定句: 句中 “从来没有” I’ve never been to Beijing.
注: 带ever的肯定句变否定句时, 将 ever变never
动词过去分词 (pp)变化规则
1. 规则动词：与过去时变化相同。 (1) 一般+-ed
work---worked---worked (2) 以“ e ”结尾, + - d 。
live---lived ---lived (3) “辅音字母 + y” 结尾，y 变 i, + -ed。
cry---cried---cried (4) 重读闭音节结尾(辅元辅)，双写后+-ed 。
drop---dropped--dropped 2 、不规则动词，见不规则表（p120）
二 含义及用法
1 表示过去发生的动作或事情， 对现在的影响和产生的结果。
常用的关键词
yet(否/疑), already 已经
ever/never
曾经/从来不
just
刚刚
before
以前
recently, lately
Key words
for just
yet ever never since before already
He h_a__s_ already f_o_u_n_d__ a job. (find)