人教版八年级英语下册课件Unit 5Grammar Focus
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_______ (steal) his car. stole
11
5. While we w__e_r_e_w_a_i_t_in_g__ (wait) for the bus, a girl
_w_a_s__r_u_n_n_in__g_ (run) up to us.
6. I _w_a_s__p_h_o_n_i_n_g_ (telephone) a friend when Bobca_m__e____ (come) in.
2
While Jake was sleeping, what did his brother do? He played basketball.
When Jake was sleeping, his brother played basketball.
3
While they were dancing, what happened?
我们到达机场ห้องสมุดไป่ตู้， 天正下着雪。 My key dropped on the ground when I was walking in the park.
我在公园散步时， 钥匙掉在了地上。
8
while
while引导的时间状语从句常指一个时间段，从句中的动 词常为延续性的。while有时还可表示主句的动作与从句 的动作同时发生。 While he was reading, the phone rang.
13
3. 当我妈妈在做晚饭的时候，我在卧室做作业。 I was doing my homework in the bedroom while my mother was cooking supper.
4. 当我今天早上看到她时，她正急匆匆地赶去上班。 When I saw her this morning, she was in a great hurry to go to work.
We were about to start when it began to rain. He likes coffee, while she likes tea.
10
1. I __w_a_s_w__a_t_ch__in_g__ (watch) TV when she c_a_ll_e_d___ (call). 2. When the phone _r_a_n_g___ (ring), shew_a_s_w_r_i_ti_n_g___
While they were dancing, the telephone rang. When the telephone rang, they were dancing.
4
He was singing when the baby started to cry. While he was singing, the baby started to cry.
(write) a letter.
3. While we _w_e_r_e_h_a_v_i_n_g__ (have) a picnic, its_ta_r_t_e_d____ (start) to rain.
4. While John _w_a_s_s_l_e_e_p_in_g__ (sleep) last night, someone
2) 表示主、从句正在进行的动作或状态的对比时多用while： While she was making a phone call, I was writing a letter.
3) when 可用作并列连词，表示“这时(突然)”，但while不可以； while 可以用作并列连词，表示“而、却”(表示对比)，但when 没有这种用法。
5
While he was walking, a taxi came. He was walking when a taxi came.
6
Both of them mean
Are they the same? No ！！！
7
when and while “当……的时候”
when
when引导的时间状语从句可以表示一个时间点, 也可以表示一 个时间段。从句中可以用短暂性动词，也可以用延续性动词。 It was snowing when we got to the airport.
12
Translation 1. 当开始下雨的时候，我正和朋友们在操场上打篮球。
I was playing basketball with my friends in the playground when it started to rain.
2. 我当时甚至不知道我正在做什么。 I did not even know what I was doing at that time.
1
What were they doing when it began to rain?
They were playing computer games when it began to rain.
They were playing chess when it began to rain.
They were playing football when it began to rain.
7. While mother w__a_s_m__a_k_in__g_ (make) the bed, the door bell __r_a_n_g___ (ring).
8. We _w__e_re__te_s_t_in_g__ (test) the new machine when the electricity ________ (go) off. went
他正在看书时，电话铃响了。 Some students were reading while others were writing.
一些学生在读书，另一些学生在写字。
9
when 和 while 的区别
1) 若从句是一个短暂性动作，主句是一个持续性动作，可用 when 但不用 while：
It was raining hard when we arrived. 我们到达时正下着大雨。
11
5. While we w__e_r_e_w_a_i_t_in_g__ (wait) for the bus, a girl
_w_a_s__r_u_n_n_in__g_ (run) up to us.
6. I _w_a_s__p_h_o_n_i_n_g_ (telephone) a friend when Bobca_m__e____ (come) in.
2
While Jake was sleeping, what did his brother do? He played basketball.
When Jake was sleeping, his brother played basketball.
3
While they were dancing, what happened?
我们到达机场ห้องสมุดไป่ตู้， 天正下着雪。 My key dropped on the ground when I was walking in the park.
我在公园散步时， 钥匙掉在了地上。
8
while
while引导的时间状语从句常指一个时间段，从句中的动 词常为延续性的。while有时还可表示主句的动作与从句 的动作同时发生。 While he was reading, the phone rang.
13
3. 当我妈妈在做晚饭的时候，我在卧室做作业。 I was doing my homework in the bedroom while my mother was cooking supper.
4. 当我今天早上看到她时，她正急匆匆地赶去上班。 When I saw her this morning, she was in a great hurry to go to work.
We were about to start when it began to rain. He likes coffee, while she likes tea.
10
1. I __w_a_s_w__a_t_ch__in_g__ (watch) TV when she c_a_ll_e_d___ (call). 2. When the phone _r_a_n_g___ (ring), shew_a_s_w_r_i_ti_n_g___
While they were dancing, the telephone rang. When the telephone rang, they were dancing.
4
He was singing when the baby started to cry. While he was singing, the baby started to cry.
(write) a letter.
3. While we _w_e_r_e_h_a_v_i_n_g__ (have) a picnic, its_ta_r_t_e_d____ (start) to rain.
4. While John _w_a_s_s_l_e_e_p_in_g__ (sleep) last night, someone
2) 表示主、从句正在进行的动作或状态的对比时多用while： While she was making a phone call, I was writing a letter.
3) when 可用作并列连词，表示“这时(突然)”，但while不可以； while 可以用作并列连词，表示“而、却”(表示对比)，但when 没有这种用法。
5
While he was walking, a taxi came. He was walking when a taxi came.
6
Both of them mean
Are they the same? No ！！！
7
when and while “当……的时候”
when
when引导的时间状语从句可以表示一个时间点, 也可以表示一 个时间段。从句中可以用短暂性动词，也可以用延续性动词。 It was snowing when we got to the airport.
12
Translation 1. 当开始下雨的时候，我正和朋友们在操场上打篮球。
I was playing basketball with my friends in the playground when it started to rain.
2. 我当时甚至不知道我正在做什么。 I did not even know what I was doing at that time.
1
What were they doing when it began to rain?
They were playing computer games when it began to rain.
They were playing chess when it began to rain.
They were playing football when it began to rain.
7. While mother w__a_s_m__a_k_in__g_ (make) the bed, the door bell __r_a_n_g___ (ring).
8. We _w__e_re__te_s_t_in_g__ (test) the new machine when the electricity ________ (go) off. went
他正在看书时，电话铃响了。 Some students were reading while others were writing.
一些学生在读书，另一些学生在写字。
9
when 和 while 的区别
1) 若从句是一个短暂性动作，主句是一个持续性动作，可用 when 但不用 while：
It was raining hard when we arrived. 我们到达时正下着大雨。