人教版英语八年级下册unit 5 sectiona gf -4c 共32张ppt
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4.While John was shopping, Mary took the car
to the car wash.
= John was shopping when Mary took the car to the car wash.
短文填空 Fill in the blanks with was, were, when or while.
Revision What was/were … doing at...?
Peter
sleep late
at 9:00 yesterday morning
the boys swim
at 2:00 yesterday afternoon
David
talk on the phone
at 11:00 last night
Look at the table and write sentences with both while and when.
John
Mary
take photos buy a drink
延续性动词
非延续性动词
play the piano leave the house
clean his room turn on the radio
When it began to rain, Ben _w_a_s_ h__el_p_i_n_g_ his mom m__a_k_e_d_i_n_n_e_r_.
9. 当Linda在睡觉的时候Jenny正在做什么？ What _w_a_s_ Jenny _d_o_in__g__ _w_h_i_le_ Linda _w_a_s_ _s_le_e_p_in__g_?
He was taking photos when the rainstorm came
She was playing the piano at the time of the rainstorm
They were cleaning the room at 10:00am last Sunday
Structure
10.当Linda在睡觉的时候Jenny正在帮助 Mary做家庭作业。 W__h_i_le_ Linda was sleeping, Jenny _w_a_s_ _h_e_lp_i_n_g_ Mary _w__it_h_ her _h_o_m__e_w_o_r_k_.
探索一：过去进行时的结构 (陈述句）
1. While John was taking photos, Mary bought a drink.
= John was taking photos when Mary bought a drink.
2.While John was playing the piano, Mary
left the house.
_W__h_a_t_ was she doing _a_t_ _t_h_e_ _t_im__e__ of the rainstorm?
4. 她正在做家庭作业。 She w__a_s_ _d_o_in_g__ her _h_o_m_e_w__o_r_k.
5. 在暴风雨来临的时候他正在做什么？ What _w_a_s_ he _d_o_i_n_g_ when the _r_a_in_s_t_o_r_m_ __c_a_m_e__?
根据题后要求完成下列句子，每空一词。
1. My mother washed clothes yesterday afternoon. (用at five yesterday afternoon改为过去进行时) My mother _w_a_s_ _w_a_s_h_in__g clothes at five yesterday afternoon.
2. We were speaking English at that time. (改为否定句) We _w_e_r_e _n_o_t_ _s_p_e_a_k_in__g_English at that time.
3. Mr Smith was mending his bike when they rang him up. (改为一般疑问句) _W_a_s_ Mr Smith m__e_n_d_i_n_ghis bike when they rang him up?
shop
take the car to the car wash
1. While John was taking photos, Mary bought a drink.
John was taking photos when Mary bought a drink.
2.________________________________ ________________________________
4. She was doing her homework at three yesterday afternoon. (对划线部分提问) W__h_a_t_w_a_s_ she _d_o_i_n_g_ at three yesterday afternoon?
—Yes, he was. —No, he wasn’t.
思考 一般疑问句把___w__a_s_或_w__e_r_e__调到主语前面, 回答时，也要使用___w__a_s_或_w__e_re____.
预习热身 写出现在分词形式
1. take 2. play
taking playing
3. clean 4. shop 5. sleep 6. buy 7. leave 8. turn
探索三：过去进行时的句型转换(一般疑问句）
TWheerye wtheerye cleaning the room at 10:00am last Sunday ?
—Yes, they were. / No, they weren’t.
HWeas whaes taking photos when the rainstorm came ?
Summary:
1) when可指时间点, 又可指时间段, 从句中 可用延续性动词, 也可用非延续性动词。
2) while总是指一个时间段, 从句中必须用延 续性动词。
注意：当when 和while 引导的时间状语
从句放在句首，要用逗号隔开。
1.
Tom was eating supper,
it began to rain outside.
6. 当暴风雨来临的时候她正在图书馆读书。 She w__a_s_r_e_a_d_in_g_ in the library when the rainstorm _c_a_m_e_.
7. 当开始下大暴风雨的时候Ben正在做什么？
What w__a_s__ Ben _d_o_in__g__ _w_h_e_n_ it began to _r_a_i_n_h_e_a_v_il_y_? 8. 当开始下雨时，Ben正在帮他妈妈做晚饭。
= John was playing the piano when Mary left the house.
3. While John was cleaning his room, Mary
turned on the radio.
= John was cleaning his room when Mary turned on the radio.
= John was taking photos when Mary
bought a drink.
While the boy was singing in the classroom,
the teacher came in（. 用when 来进行转换）
= The boy was singing in the classroom when the teacher came in
基本结构：主语+ was/were + v-ing +其它
探索二：过去进行时的句型转换(否定句） He was ntaokting photos when the rainstorm came
They were ncoletaning the room at 10:00 last Sunday
思考 否定句在___w_a_s_或__w_e_r_e__后面加not。 was not = wasn’t were not = weren’t
3.________________________________ ________________________________
4.________________________________ ________________________________
when和while都可表示“当……的 时候”，引导时间状语从句。你知道两 者在过去进行时中的用法有什么不同吗？
2. WhatZhou came in?
3.
Peter was sleeping, a
thief broke into his house.
4. She left her hometown
she
was five.
有时候when 和while 可以进行转换
eg:While John was taking photos , Mary bought a drink
本人在课外辅导的经验5年对小初高学生的知识点疑惑非常熟悉能够给予学生最为准确的知识点教案以及分析
1.能正确理解并使用过去进行时进行表达。 2.能正确使用连词when 和while。
• What were you doing when I came in? • I was …when you came in.
请仔细观察下面的例句，然后补全 空格中的内容。
① I was walking to school when I saw a cat
in a tree. ②When Sally arrived home, her mother
was cleaning the house. 主句的动作是持续性的，而从句动作是 短暂性的，此时用 _w__h_e_n_ 引导时间状语从 句，主句用 _过__去__进__行___ 时态，从句用一般 过去时态。
Ted and Sam
play basketball
at 4:00 pm yesterday
根据课本内容，完成下列句子。 1. 昨晚八点你正在做什么？
What _w_e_r_e_ you _d_o_i_n_g_ at eight last night? 2. 我正在洗澡。
Ｉ _w_a_s_ t_a_k_i_n_g__ a shower. 3. 在下暴风雨的时候她正在做什么？
cleaning shopping sleeping
buying leaving turning
9. kid v.开玩笑 kidding
10. hit
hitting
写出过去分词形式
took played
cleaned shopped slept bought left turned
kidded hit
③ While I was sleeping in the bedroom,
someone knocked at the door. ④ David fell while he was riding his bike.
主句的动作是短暂性的，从句的动作 是持续性的，此时用 _w_h_i_l_e__ 引导从 句，主句用 _一__般__过__去___ 时态，从句 用过去进行时态。
At 7:00 a.m., I woke up. ______I ____making my breakfast, my brother_____ listening to the radio. _______I was eating, the radio news talked about a car accident near our home. My brother and I went out right away to have a look. _______we got to the place of the accident, the car ______ in bad shape from hitting a tree. But luckily, the driver ______fine. The roads ______ icy because of the heavy snow from the night before.
to the car wash.
= John was shopping when Mary took the car to the car wash.
短文填空 Fill in the blanks with was, were, when or while.
Revision What was/were … doing at...?
Peter
sleep late
at 9:00 yesterday morning
the boys swim
at 2:00 yesterday afternoon
David
talk on the phone
at 11:00 last night
Look at the table and write sentences with both while and when.
John
Mary
take photos buy a drink
延续性动词
非延续性动词
play the piano leave the house
clean his room turn on the radio
When it began to rain, Ben _w_a_s_ h__el_p_i_n_g_ his mom m__a_k_e_d_i_n_n_e_r_.
9. 当Linda在睡觉的时候Jenny正在做什么？ What _w_a_s_ Jenny _d_o_in__g__ _w_h_i_le_ Linda _w_a_s_ _s_le_e_p_in__g_?
He was taking photos when the rainstorm came
She was playing the piano at the time of the rainstorm
They were cleaning the room at 10:00am last Sunday
Structure
10.当Linda在睡觉的时候Jenny正在帮助 Mary做家庭作业。 W__h_i_le_ Linda was sleeping, Jenny _w_a_s_ _h_e_lp_i_n_g_ Mary _w__it_h_ her _h_o_m__e_w_o_r_k_.
探索一：过去进行时的结构 (陈述句）
1. While John was taking photos, Mary bought a drink.
= John was taking photos when Mary bought a drink.
2.While John was playing the piano, Mary
left the house.
_W__h_a_t_ was she doing _a_t_ _t_h_e_ _t_im__e__ of the rainstorm?
4. 她正在做家庭作业。 She w__a_s_ _d_o_in_g__ her _h_o_m_e_w__o_r_k.
5. 在暴风雨来临的时候他正在做什么？ What _w_a_s_ he _d_o_i_n_g_ when the _r_a_in_s_t_o_r_m_ __c_a_m_e__?
根据题后要求完成下列句子，每空一词。
1. My mother washed clothes yesterday afternoon. (用at five yesterday afternoon改为过去进行时) My mother _w_a_s_ _w_a_s_h_in__g clothes at five yesterday afternoon.
2. We were speaking English at that time. (改为否定句) We _w_e_r_e _n_o_t_ _s_p_e_a_k_in__g_English at that time.
3. Mr Smith was mending his bike when they rang him up. (改为一般疑问句) _W_a_s_ Mr Smith m__e_n_d_i_n_ghis bike when they rang him up?
shop
take the car to the car wash
1. While John was taking photos, Mary bought a drink.
John was taking photos when Mary bought a drink.
2.________________________________ ________________________________
4. She was doing her homework at three yesterday afternoon. (对划线部分提问) W__h_a_t_w_a_s_ she _d_o_i_n_g_ at three yesterday afternoon?
—Yes, he was. —No, he wasn’t.
思考 一般疑问句把___w__a_s_或_w__e_r_e__调到主语前面, 回答时，也要使用___w__a_s_或_w__e_re____.
预习热身 写出现在分词形式
1. take 2. play
taking playing
3. clean 4. shop 5. sleep 6. buy 7. leave 8. turn
探索三：过去进行时的句型转换(一般疑问句）
TWheerye wtheerye cleaning the room at 10:00am last Sunday ?
—Yes, they were. / No, they weren’t.
HWeas whaes taking photos when the rainstorm came ?
Summary:
1) when可指时间点, 又可指时间段, 从句中 可用延续性动词, 也可用非延续性动词。
2) while总是指一个时间段, 从句中必须用延 续性动词。
注意：当when 和while 引导的时间状语
从句放在句首，要用逗号隔开。
1.
Tom was eating supper,
it began to rain outside.
6. 当暴风雨来临的时候她正在图书馆读书。 She w__a_s_r_e_a_d_in_g_ in the library when the rainstorm _c_a_m_e_.
7. 当开始下大暴风雨的时候Ben正在做什么？
What w__a_s__ Ben _d_o_in__g__ _w_h_e_n_ it began to _r_a_i_n_h_e_a_v_il_y_? 8. 当开始下雨时，Ben正在帮他妈妈做晚饭。
= John was playing the piano when Mary left the house.
3. While John was cleaning his room, Mary
turned on the radio.
= John was cleaning his room when Mary turned on the radio.
= John was taking photos when Mary
bought a drink.
While the boy was singing in the classroom,
the teacher came in（. 用when 来进行转换）
= The boy was singing in the classroom when the teacher came in
基本结构：主语+ was/were + v-ing +其它
探索二：过去进行时的句型转换(否定句） He was ntaokting photos when the rainstorm came
They were ncoletaning the room at 10:00 last Sunday
思考 否定句在___w_a_s_或__w_e_r_e__后面加not。 was not = wasn’t were not = weren’t
3.________________________________ ________________________________
4.________________________________ ________________________________
when和while都可表示“当……的 时候”，引导时间状语从句。你知道两 者在过去进行时中的用法有什么不同吗？
2. WhatZhou came in?
3.
Peter was sleeping, a
thief broke into his house.
4. She left her hometown
she
was five.
有时候when 和while 可以进行转换
eg:While John was taking photos , Mary bought a drink
本人在课外辅导的经验5年对小初高学生的知识点疑惑非常熟悉能够给予学生最为准确的知识点教案以及分析
1.能正确理解并使用过去进行时进行表达。 2.能正确使用连词when 和while。
• What were you doing when I came in? • I was …when you came in.
请仔细观察下面的例句，然后补全 空格中的内容。
① I was walking to school when I saw a cat
in a tree. ②When Sally arrived home, her mother
was cleaning the house. 主句的动作是持续性的，而从句动作是 短暂性的，此时用 _w__h_e_n_ 引导时间状语从 句，主句用 _过__去__进__行___ 时态，从句用一般 过去时态。
Ted and Sam
play basketball
at 4:00 pm yesterday
根据课本内容，完成下列句子。 1. 昨晚八点你正在做什么？
What _w_e_r_e_ you _d_o_i_n_g_ at eight last night? 2. 我正在洗澡。
Ｉ _w_a_s_ t_a_k_i_n_g__ a shower. 3. 在下暴风雨的时候她正在做什么？
cleaning shopping sleeping
buying leaving turning
9. kid v.开玩笑 kidding
10. hit
hitting
写出过去分词形式
took played
cleaned shopped slept bought left turned
kidded hit
③ While I was sleeping in the bedroom,
someone knocked at the door. ④ David fell while he was riding his bike.
主句的动作是短暂性的，从句的动作 是持续性的，此时用 _w_h_i_l_e__ 引导从 句，主句用 _一__般__过__去___ 时态，从句 用过去进行时态。
At 7:00 a.m., I woke up. ______I ____making my breakfast, my brother_____ listening to the radio. _______I was eating, the radio news talked about a car accident near our home. My brother and I went out right away to have a look. _______we got to the place of the accident, the car ______ in bad shape from hitting a tree. But luckily, the driver ______fine. The roads ______ icy because of the heavy snow from the night before.