八下第三单元第二课时课件

1.The boy was walking down the street when the UFO landed.
2.The girl was shopping when the alien got out. 3.While the girl was shopping, the alien got out. 4.While the boy was walking down the street, the UFO
❖ Knowledge is power. 知识就是力量。
▪ Pay attention to your pronunciation . 请注意你的发音。
❖It’s your turn now . 该你了（轮到你了）。
➢Think it over and try again . 仔细想想，再试。
Learn these words by heart . 用心学这些单词。
landed.
Grammar Focus
过去进行时用于when 和while 引导的时间状语从句及其区别
1.用when引导的时间状语从句说明一个动作发生时，另一个动 作正在进行。
The students were drawing pictures when the teacher came in. 2.用when引导的时间状语从句也可表示正在进行某一动作时，
with “ While riding street, off.
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第二届新标准杯英语网络课件大赛参赛课件
教材：人教版 新目标英语 八年级 下册 标题：Unit 3 What were you doing when the
UFO arrived?
义务教育课程标准实验教科书
英语
（新目标）
Go for it !
八年级 下册
Unit 3 What were you doing when the UFO arrived ?
2c GROUPWORK
Look at the pictureWbheilloe wth.e SgWiarlyhwewanshthaet each person
was doing when thestaUnFdiOngtionoUfrkFoOnotftfo.oMk oafkf,e sentences
另一个动作也发生了。
My pen dropped on the ground when I was walking in the park. 3.用while引导的时间状语从句一般用进行时，表示正在进行某
个动作时，发生了另一个动作，这时主句用一般过去时。
While he was reading, the telephone rang. 4.when与while引导的时间状语从句都可以与进行时连用，但
Proverbs
谚语
❖ God helps those who help themselves. 自助者天助。
He laughs best who laughs last. 谁笑在最后，谁笑得最好。
❖ First think, then do. 先思考，再去做。
➢ Enough is as good as feast. 知足者常乐。
第二课时
Language Goals: Talk about past events; Tell a story
REVIEW
过去进行时
含义：过去某一时(were) + 现在分词
与其连用的时间状语： 1.有确切的过去时间状语和上下文暗示。 2.句中含有表示过去时态的时间状语从句。 用法：
II.用所给动词的适当时态填空：
1.What _w_e_r_e_ you _d_o_i_n_g_ when he arrived? (do) 2.Jim _w_a_s__s_le_e_p_i_n_g (sleep) when I came in. 3.Theyw_e_r_e_w__a_tc_h_i_n_g(watch) TV at 8:00 yesterday evening. 4.He uaually __p_l_a_y_s__ (play) football on Saturday. 5.Now he _i_s_r_e_a_d_i_n_g_ (read) words.
Model: A: What was the girl doing when the UFO took off? B: While the girl was… C: When the UFO took off ,the man was…
Grammar Focus
仔细观察下列带时间状语从句 的复合句，注意引导状语从句 的引导词和主从句的动词时态。
2a Listen and order these statements [1-5].
_5__ The alien visited the
Museum of Flight.
_4__ The alien bought a
souvenir.
_1__ A UFO landed on
Center Street.
2.eating, home, their, father, the, girls, supper, were, while, came
While the girls were eating supper, their father came home. Their father came home while the girls were eating supper.
We were playing football at 4:00 yesterday afternoon. I was sleeping late when the UFO arrived.
REVIEW I.写出下列动词原形的现在分词：
carry carrying make making read reading swim swimming write writing stop stopping
while更强调动作持续一段时间，即从句的动词是延续性动 词，且主、从句动作发生在同一时间段内。当从句放在主句 前 面 时，主从句之间须用“ ，” 隔开。
连词成句，注意when与while的位置：
1.in, the teacher, we, came, were, talking, when We were talking when the teacher came in. When the teacher came in, we were talking.
_3__ The alien went into a
store.
_2__ An alien got out of the
UFO.
2b Listen again. Complete the following sentences with“ when” or “ while”.
1.The boy was walking down the street w__h_e_n_ a UFO landed. 2.The girl was shopping w__h_e_n_ she saw the alien get out. 3.W__h__il_e the alien was buying a souvenir, the girl called the police. 4.W__h_i_l_e the alien was visiting the museum, the boy called the TV station.
Homework for today
I.反复听录音。 II.预习P20的内容。 III.和同伴一起练习P19中的2c问答对话。 IV.抄写P20中的2a（重新排序）、2b(带
空带下划线）和 Grammar Focus.