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写出下列动词的过去式及过去分词
hit
hit
1 become__b_e_ca_m_e_-_b_e_co_m_e___ 2 break__b_ro_k_e__-__b_r_ok_e_n ___
13 hit____h_u_rt-____hu_r_t 14 hurt_____-______
3 bring __b_r_ou_g_ht_-___b_ro_u_gh_t_
现在完成时
现在完成时的含义
用来表示之前已经发生或完成的动作或状态，而其结果却和现 在有联系: 动作或状态发生在过去,但它的影响现在还存在。
They have left. --他们已经离开了,也就是说现在他们人不在这里 I have had my lunch. --我已经吃过午饭了,也就是说我现在不饿
a）already 往往用于肯定句，用在疑问句时表示强 调或加强 语气；yet 用于否定句和疑问句。
b） never 是否定词，表示“从来没有”，而ever 表示“曾 经” c） just表示“刚刚”（用于完成时态时，与already，never 等副词的位置一样，多用在助动词have/has和动词过去分词 之间）
也可表示持续到现在的动作或状态。 He has learned English since 2001. --从2001年开始学的,现在还在继续学着呢
现在完成时
past now
一般过去时
futureΒιβλιοθήκη 一般过去时表示的是纯粹在过去发生的事情
现在完成时表示的是在过去某个时间开始并持续到现 在的动作/状态,或者发生在过去却对现在造成的影响
按要求改变句子。 1. She has done her homework. (改否定句)
She hasn’t done her homework.
2. She has already told us the news. (改否定句)
She hasn’t told us the news yet.
She has learned French __f_or___ 2 years. She has learned French _s_in_ce____ 2 years __ag_o_______.
动词过去分词的变化规则
规则变化： 1、一般情况下，动词词尾加 -ed ，如： worked played wanted acted 2、以不发音的 -e 结尾动词，动词词尾加 -d，如： lived moved decided hoped 3、以辅音字母 + y结尾的动词，把-y变为-i 再加-ed，如： studied tried copied cried 4、以一个辅音字母结尾的重读闭音节动词，双写词尾辅音 字母，再加 -ed，如： stopped begged dropped planned
7 choose___ch_o_se___-__c_h_os_e_n _ 8 cut__c_ut_____-____cu_t_____ 9 fall____fe_ll__-__fa_ll_en______
10 fly__f_le_w___-____fl_ow_n____ 11 forget__f_o_rg_o_t _-__f_o_rg_ot_t_en 12 grow__g_r_ew____-___gr_ow_n__
3. The rain has already stopped. (改一般疑问句)
Has the rain stopped yet?
4. I have waited here for two hours. (划线提问)
How long have you waited here ?
5.He has lived in ShangHai since he left Beijing. (划线提问)
17 lose____lo_st_-____lo_s_t
18 meet____m_et-____m_e_t
19 put___p_u_t _-____p_ut_
20read____re_a_d -____r_ead
21 ring______-______
rang
rung
现在完成时标志词
1．在表示“表示发生在过去的动作对现在造成的结果或影 响” 时，现在完成时常和副词already, yet, never, ever, before, just等连用。
Where has he lived since he left Beijing?
6. They have bought a new car, _h_a_ve_n_’t_ __t_he_y______? (反义 疑问句) 7. She has learned French since 2002. (同意句)
• 构成：
肯定式：主语 + 助动词have/has + 动词的过去分词. 疑问式：助动词Have/Has + 主语 + 动词的过去分词? 否定式: 主语 + 助动词have/has + not + 动词的过去分词.
例句： I have already had lunch. Have you had lunch yet? Yes, I have. No, I haven't. I haven't had lunch yet.
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不规则变化 AB型 can -could shall-should will-would may-might AAA型 cost-cost-cost cut-cut-cut hit-hit-hit hurt-hurt-hurt let-let-let put-put-put set-set-set shut-shut-shut read-read-read AAB型 beat-beat-beaten ABA型 become-became-become come-came-come run-ran-run
kept
kept
4 build__b_u_ilt___-___b_u_ilt____ 5 bite__b_it____-____bi_t ____
15 keep_____-______
lent
lent
16 lend______-_____
6 catch___ca_u_gh_t_-__c_a_ug_h_t ___