人教版九年级英语下册《Unit 12 Section A Grammar》教学课件PPT初三公开课

1、Unit 12Section A Grammar Focus- 4c人教版英语九年级下册To learn the words and phrases: c r e a m , w o r k d a y , p i e , s h o w u p , b e a n , m a r k e t , b y t h e e n d o f . . . To learn the usage of the past perfect tense. Warming upTalk about Marys morning. By the time she got up,her brother had alr

2、eady gotten in the bathroom.Grammar FocusWhen I got to school, I realized that I had left my backpack at home.By the time I got to school, the bell had rung.Before I got to the bus stop, the bus had already left.I was about to go up to my office when I decided to get a coffee first.As I was waiting

3、in line with the other office workers, I heard a loud sound.过去完成过去完成时时(1)(1)用法用法：用来描述在过去某一时间或动作之前已经发生或完成用来描述在过去某一时间或动作之前已经发生或完成了了 的动作。的动作。(过去的过去过去的过去)(2)(2)构成构成：由由“助动词助动词had(用于各种人称和数用于各种人称和数) + 过去分词过去分词”构成构成. 否定式：否定式：had not + 过去分过去分词词缩写形式：缩写形式：hadnt(3) 标志词标志词：表示过去某一时间发生的动作用表示过去某一时间发生的动作用by the time

4、, before, when引导时间状语从句；引导时间状语从句；by the end of 接 短接 短 语语表示过去的过去发生的动作常与表示过去的过去发生的动作常与already, since+点时间点时间， for + 段时间段时间连用连用。(4) 口诀口诀：有两个动作发生在过去，一个先发生有两个动作发生在过去，一个先发生， 一个后发生，一个后发生，先先 发生的用过完，后发生的用过去发生的用过完，后发生的用过去。1.过去完成时动词表示过去某一时间或某一过去完成时动词表示过去某一时间或某一 动作之前完成的动作或状态。强调过去某一动作之前完成的动作或状态。强调过去某一 动作发生在另一动作之前时

5、。动作发生在另一动作之前时。他说他以前见过你他说他以前见过你。He said that he _h_a_d s e_e_n(see) you before.过去完成时的具体用过去完成时的具体用法法2.2.过去完成时词可以表示过去某一时刻之前过去完成时词可以表示过去某一时刻之前发发 生的动作或呈现的状态，这一动作一直持生的动作或呈现的状态，这一动作一直持续续 或将继续下去或将继续下去。到了六点钟为止，他们已经工作了八小时了到了六点钟为止，他们已经工作了八小时了。(work)for eight(be) therefor a long time.By six oclock they _h_a_d w

6、_o_r_k_e_dhours.我到广州时，他在那里很长时间了我到广州时，他在那里很长时间了。When I came to GZ , he h_a_d b_e_e_n3.3.过去完成时过去完成时和和 already, just, ever, yet等等 连用表示过去的过去连用表示过去的过去。他告诉我说他们队已经赢了他告诉我说他们队已经赢了。already(win).(not go to) theGreat Wall yet.He told me that his team ha_d w_o_n她说她仍没去过长城她说她仍没去过长城。She said that she _h_a_d n_ t b_

7、e_e_n_t_o1.一般过去时一般过去时表示在表示在过去过去某时发生的动作某时发生的动作或或 存在的状态存在的状态。例例：We started to learn English 5 years ago.我们五年前开始学英语我们五年前开始学英语。一般过去时、现在完成时与过去完成一般过去时、现在完成时与过去完成时时5 years agonow2. 现在完成时现在完成时表示的动作发生在过去，但侧重对表示的动作发生在过去，但侧重对现现 在产生的结果或造成的影响，与现在有关。其在产生的结果或造成的影响，与现在有关。其结结 构为：构为：“助动助动词词 have（has）+过去分词过去分词” 。例例：We

8、 have learned English for 5 years.我们已经学了五年的英语了我们已经学了五年的英语了。5 years agohave learnednow3. 过去完成时过去完成时表示在过去某个时间或动作之表示在过去某个时间或动作之前前 已已经发生或完成了的动作或存在的状态，经发生或完成了的动作或存在的状态，即即 “过过去的过去去的过去（ past-in-the-past ）”。例例：We had learned English for 4 years by last year.到去年为止，我们已经学英语四年了到去年为止，我们已经学英语四年了。past in the pastp

9、astnow总总结结_when, before, by the time1. . 过去完成时的构成过去完成时的构成：h_a_d_过过+_去去_分分_词词_2. . 过去完成时表示过去完成时表示：过去某一时刻或动作之前已经过去某一时刻或动作之前已经发发生或完成的动作生或完成的动作。用所给词的适当形式填空用所给词的适当形式填空。2. By the time I got to class, the teacher_ (start) the class.had gone1. When I got there, the bus _ (g o).had started3. We h_a_d l e_a_r

10、_n_t(learn) over 1,000 words by the end of last term.4. I _h_a_d_c_l_e_a_n_e_d_ (clean) the room before he arrived here.Whenhadleft根据汉语提示完成句子根据汉语提示完成句子。1.1.当我到达学校的时候，我才意识到我把书当我到达学校的时候，我才意识到我把书包包 忘忘在家里了在家里了。_ I got to school, I realized that I_B_y_t_h_e _t_i m_e my backpack at home.2.2.到到我我h返返a d回回学学

11、r校校un的的g时候，铃声已经响过了时候，铃声已经响过了。_ _ _ I got back to school,busgotto3.我到达公共汽车站之前我到达公共汽车站之前， 汽车已经离开了汽车已经离开了。Before I _ _ the bus stop, the hadalready left_ _ _. was aboutto4.我决定先买一杯咖啡，然后再去办公室我决定先买一杯咖啡，然后再去办公室。I _ _ _ go up to my office when I decided to get a coffee first.4aMake sentences using by the ti

12、me or before.1. Tim went into the bathroom. Mary got up.By t_h_e t_ime Ma_r_y g_o_t u_p_,Timh_a_d a_l_r_e_a_d_y g_o_n_e i_n_t_o t_h_e b_a_t_h_r_o_o_m .2. The coffee became cold. I put cream (n. 奶油奶油) in the coffee._B_e_f_o_r_e I p_u_t c_r_e_a_min t_h_e c_o f_f_e_e_,_t_h_e c_o_f_f_e_e h_ad b_e_c_o_me

13、 c_o_ld_.3. The teacher collected the math homework. I got to school. B_y t_h_e_t_i_m_e I g_ot t_o s c_h_o_o_l_,_t_h_e t_e_a_c_h_e_r h_a_d c_o_l l e_c_t_e_d t_h_e m_a_t_h h_o_m_e_w_o_r_k_.4. I completed the work for my boss. The workday (n. 工作日工作日) ended. I had completed the work for my boss b_e_f_o

14、_r_e_t_h_e w_o_r_k_d_a_y e_n_d_e_d_.5. The movie started. I arrived at the cinema. The movie had started before I arrived at the cinema.6. My mother finished making the apple pie (n. 苹果派苹果派). I got home from my language course. By t_h_e t_i_m_e I g_o_t ho_m_e f_r_o_m my l_a_n_g_u_a g_e c_o_u_r_s_e_,

15、 m_y m_o_t_h_er_ha_d f_i_n_i_s_h_e_d ma_k_i_n_g t_h_e a_p_p_l_e p_i_e_.to add the green beans (n. 豆豆).rush out, forget, arrive at, go into, show up (赶到；露面赶到；露面), find out1. By the time I arrived at the party, everyone else.2. When he put the noodles into a bowl, he realized h_a_d_ already _s_h_o_w_n

16、 u_phe _h_a_d f_o_r_g_o_t t_e_n4bFill in the blanks with the correct forms of the words in the box.the building.3. By the time my mother came back from the market (n. 市场市场), I had already rushed out of the door to go for my piano lesson. h_a_d g_o_n_e_i_n_t_o4. Before she got to the airport, she _h

17、a_d_f_o_u_n_d o_u_t_ about the earthquake.5. When she a_r_r_i v_e_d a_t the movie theater, sheremembered she had forgotten to feed her dog.6. Before she got a chance to say goodbye, he1. By the time I left for school in the morning, I_h_a_d a_l_r e_a_d_y h_a_d b_r_ea_kfa_s_t_. I h_a_d_a_l_r_e_a_d_y_

18、h_a_d s_u_p_p_e_r_. I h_a_d_a_l_r_e_a_d_y_h_a_d my_h_a_i_r_c_u_t_.Write two true statements and one false statement about your day yesterday.Then ask your classmates to guess the false statement.4c2. By the end of the school day, I h_a_d_f_i_n_i s_h_e_d my_h_o_me_wo_r_k_. I_h_a_v_e g_o_t_a_pre_s_e_n

19、_t_f_r_o_m T o_m_. I_h_a_d h_a_d thes_e a_r_ti_c_le_s r_ea_d.3. By dinner time,I _h_ad_h_a_d t_o_o_ma_n_y a_p_p_l_e_s .I _h_a_d e_a_te_n p_l_e_n_ty o_f_me_a_t_. I _h_a_v_e h_a_d_a_l_l_t_h_e_ho_u_s_ewo_r_k fi_n_i_shed.(tell) the content of it.1. When Tim get back home, he started to realize that the

20、thief h_a_d c_o_m_e(come) to his house.2. By the time I received the letter, I h_a_d b_e_e_n to_l_d.用括号里所给词的适当形式填空用括号里所给词的适当形式填空。. 翻译下列句子翻译下列句子。1.1.当他到达学校的时候，老师已经开始上课了当他到达学校的时候，老师已经开始上课了。By the time he got to school, the teacher had already started teaching.2 .W当当h我我e出出n I来来g的的ot时时o u候候t s，i d我我e,爸爸

21、m爸爸y 已已fat经经he离离r 开开ha家家d 了了。left home.3.3.在我拿书包以前我把门锁上了在我拿书包以前我把门锁上了。Before I got my schoolbag, I had locked the door.4.4.在她做完作业之前我妈妈已经回来了在她做完作业之前我妈妈已经回来了。Before she finished her homework, my mother had already been back.marketmissburn unexpectedabove pie. 用方框中词的适当形式完成下面的句子用方框中词的适当形式完成下面的句子。1. I go

22、t up late and _m_i_s_s e_d_ the early bus this morning.2. The mountain is 1, 000 meters a b_o_v_e_ the sea level.news.marketburnabove missunexpectedpie3. My daughter went with me to the _m a_r_k_e_t_ and bought clothes.4. His wife made some apple _p_i_e_s_ for dinner.5. He became worried when he heard of the u_n e_x_p_e_c_t e_d1. I happenedA. meetC. methim in the park yesterday.B. meetingD. to meetA. forC. toB. withD. at.单项选择单项选择。D2. Have you ever invited a friend