robotsPPT教学课件

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the experiment.
② It ____long before we _____the result
of the experiment.
A. will be; will know B. is;will know
C. will be; know
D. is; knew
6.The workers _____ busily when the boss came to look for something he ______ in the office. A. had worked, had left B. were working ; had left C. working ; had left D. had worked; left
2. --- Would you like to go to the cinema with me tomorrow afternoon?
--- I’d like to, Mum, but I ____ to a party by
Jane. It’s her birthday.
A. am invited
D. have been
3. I can’t see my coffee in this cupboard. __________?
A. Has it all been finished B. Was it all finished C. Has it all finished D. Did it all finish
M: --- Is it the first time you h_a_v_e__b_e_e_n_ abroad?(be) T: --- Yes. And hardly _h_a_dI _a_rr_i_v_e_dthere when I
was struck by its beauty. (arrive) M: --- How do you find your trip? T:--- Very good. To tell the truth, it’s the most
2. --- Where __you __ (put) the book? I can’t see it anywhere.
--- I ___(put) it right here. But now it’s gone. A. did ; put; put B. have; put; put C. did; put; have put D. have; put; have put
3. When I was at college I _______ three foreign languages but I ________ all except a few words of each. A. spoke; had forgotten B. spoke; have forgotten C. had spoken; had forgotten D. had spoken; have forgotten
Unit 2《Robots》
动词百度文库时态和语态Ⅰ
中学英语的常见时态:
一般
进行
现在 一般现在 现在进行


过去 一般过去 过去进行


将来 一般将来 将来进行


过 去 过去将来 将来 时
完成
现在完成 时
过去完成 时
将来完成 时
完成进行
现在完成进 行时
过去完成进 行时
教学大纲要求的常用的8种时态:
一般
2. As she ___ the newspaper, Granny ___ asleep.
A. read; was falling
B. was reading; fell
C. was reading; was falling D. read; fell
结论:长动作在进行时,被一个短动作打断,长动 作用进行体,短动作用一般体.
三、时态的特殊句式
Mike was walking in the street when he met Tom.
M: --- It is/has been 2 months since I last saw you.
T: --- I have just returned from abroad.
M: --- Is it the first time you have been abroad? T: --- Yes. And hardly had I arrived there when I
2一般过去时与现在完成时
1. We haven’t heard from Jane for a long time. What do you suppose _______ to her? A. was happening B. happens C. has happened D. happened
don’t know if he ______ it. A. wrote; has finished B. was writing; has finished C. was writing; had finished D. wrote; will finish
过去进行时表当时正在进行而尚未完成的动作或状态.
for a meeting now. It will be 20 minutes before it starts.
Practice makes perfect.
1.Miss Jones once ____ music at
Bardon School for ten years and now
is an actress.
4. The country life(he was used to)____
in 1992 when a coal mine was opened.
A. change
B. has changed
C. changed
D. changing
5. ① It ____ long since we ____the result of
--- I had just finished my work and____ to take a shower.
A. had started B. started C. have started D. was starting
过去进行时表示过去将来.
1. 一般过去时和过去进行时 1. He ______ a book about China last year, but I
A. had taught B. taught
C. is teaching D has been teaching
2. ---Do you often go to shanghai?
--- Yes. I ______ there twice last month.
A. was
B. went
C. have gone
B. was invited
C. will be invited D. have been invited
The news caims e no surprise to me, I w_a_s____ for some time that the factory
is going to shut down. (03北京) A. had known B. know C. have known D. knew
结论:一般过去时所表示的事情纯属过去,与现在 情况没联系.现在完成时所表示的事情与现在情 况有联系,是过去事情对现在产生的结果或对现 在的影响.
三、时态的特殊句式
Mike was walking in the street when he met Tom.
M: --- Iti_s/_h_a_s_b_e_e_n2 months since I last saw you.(be) T: --- I have just returned from abroad.
过去完成时不能孤立使用, 它必须以过去某一 时间为基点,即“过去的过去”,因此只有在 和过去某时或动作相比较时才用到它。
2. John and I ______ friends for eight years. We first got to know each other at a Christmas party. But we _____ each other a couple of times before that. (02 北京春)
呀,不知道你在这 儿!以为你在美国!
Oh, I didn’t know you were here. I thought you
were in America.
1. I ______ you not to move my dictionary
--now I cannot find it. (2004全国III)
C. will decide D. had decided
现在完成时:表示过去发生的动作对现在
造成影响和结果.
1.---The window is dirty. ---I know. It ____ for weeks.
A. hasn’t cleaned B. didn’t clear C. wasn’t cleaned D. hasn’t been cleaned
unforgettable trip I h_a_v_e__e_v_er__h_a_d__. (ever have) M: I’m glad to hear that. By the way, I am leaving
for a meeting now. It _w_i_ll_b_e_ (be) 20 minutes before it__st_a_r_t_s_. (start)
进行
完成
现在 一般现在 现在进行 现在完成



过去 一般过去 过去进累行计 过去完成



将来 一般将来 时
过 去 将 过去将来


完成进行
一、热点时态

词 的
二、易混时态辨析

态 三、 时态特殊句式
综合练习
时间状语
1.The year 2002 _s_a_w__ remarkable changes in Shanghai’s landscape. (see)
was struck by its beauty. M: --- How do you find your trip? T:--- Very good. To tell the truth, it’s the most
unforgettable trip I have ever had. M: I’m glad to hear that. By the way, I am leaving
had meant/planned/intended to do…,表示过 去未曾实现的愿望、打算、想法等。
1. The last time I saw Jane she _w_a_s_p_i_c_k_in_g_ cotton in the fields. (pick)
2. ---Has Sam finished his homework today?
A. had been; have seen B. have been; have seen C. had been; had seen D. have been; had seen;
3. 我原打算来的,但太忙了。(mean)
I had meant to come, but I was too busy.
--- I have no idea. He ___ it this morning.
A. did
B. has done
C. was doing D. had done
过去进行时表示在过去的某个时间点或 某个时间段所发生的动作或持续的状态.
3. ---What were you doing when Tony phoned you?
A. asked
B. ask
C. was asking D. had asked
context Key word
2.--- Have you decided already?
--- Yes, I____ at once.
--- Yes, I____ already.
A. have decided B. decided
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