初中英语语法复习——现在完成时课件.ppt

leave have/has been away
come to have/has been in borrow have/has kept
go to have/has been in
现在完成时
功能：
He has had a big breakfast.
He is full .
1.过去某一时间点发生的动作对现在产生影响。
I have learned English for ten years 2.过去某一时间点发生的动作持续 到现在或还将持续下去。
基本结构
have / has + done
had
buy have/has had
How long have you come to the United States？
been in
buy have/has had come to have/has been in
Ann has gone to China since three months ago.
been in
buy have/has had come to have/has been in go to have/has been in
My brother has joined the army for five years.
been in been a soldier
buy have/has had come to have/has been in go to have/has been in got to have/has been in
A: How long __h_a_ve__ you _ta_u_g_h_t___ in
this school? (teach ) B: For 6 years.
Key worLeabharlann Baidus
yet already ever never since
for
just so far
到目前为止
We __h__a_ve__ only ___p_l_a_n_te_d____ 100 trees
got to have/has been in
have/has been in join
have/has been a soldier
have/has been away
I have borrowed the dictionary since 3 days ago .
kept
buy have/has had
yet already ever never
注意： ever 曾经 用于疑问句中 never 从不 带有否定意义
A: __H_a_ve___ you ever _b_e_e_n___ to the
park? ( be )
B: No, never.
Key words
yet
already
ever
never
Key words
yet already
注意：already 用于肯定句， yet 用于疑问句和否定句中
A: __H_a_s__ your brother _fi_n_is_h_e_d his
homework yet? (finish)
B: Yes, he ‘s already done it.
Key words
just
Just 刚刚 与现在完成时连用 一般置句中 Just now 刚才 与一般过去时连用
I ___ha_v_e_ just _m_e_n_d_e_d__ the desk,
you can take it to your classroom . (mend )
Key words
yet already ever never
so far. (answer )
Key words
for just
yet ever never since before already so far
in the past 10 years how long
twice 也可以是其他表示次数的词
• He has bought the book. • He has bought the book for a week. • He has had the book for a week.
buy
have
come /go/get to be in
be in join
be a …member
leave be away borrow keep begin be on finish be over die be dead return be back
She has bought the computer for two years.
助动词 （可以帮助 构成肯定、疑问和 否定句）
1.He has cleaned his room. (写一个一般疑问句） Has he cleaned his room?
2. She has lived in London for four years. (划线部分提问）
How long has she lived in London?
3. He has been to China, h_a_s_n_’t__h_e_?
（写出反义疑问句部分）
4. They have come back from work. (写否定句） They haven’t come back from work.
What are the key words for the Present Perfect Tense?
since since 后面带过去时间或有一般过去时的句子
Tom _h_a_s_w_o_r_ke_d___ in the factory since
he left school ten years ago. (work )
Key words
yet already ever never since
for + 一段时间
have/has been in join
have/has been a soldier
I have left Shanghai for 3 days.
been away for 3 days.
buy have/has had
leave
come to have/has been in go to have/has been in