高二下英语基础知识点.doc

高二下英语基础知识点.docUnit 3 Our Hobbies
Topic 3
What were you doing at this time yesterday?
Section A
What are you doing?
We are having classes.
What were you doing at this time yesterday?
?
What was Jane doing at that time yesterday?
She was taking a shower.
take a shower
Listen and read the conversation of 1a, and find out the sentences with “v.+ing”.
1 The telephone rings while Jane is practicing the violin.
当Jane 正在训练小提琴的时候,电话响了。
while在此意为“当……的时候”,“与……同时”,引导时间状语从句。从句中要用延续性动词。
辨析: 误:Somebody broke in while I went out.
正:Somebody broke in while I was out.
我出门不在时,有人破门而入。
注意:when和while意思相近,都可引导时间状语从句。when当……时,可表瞬间、时间点,主从句所述动作、事情可同时发生,也可有先后。
. It was snowing when we got there.
我们到达那里时正在下雪。(同时)
He went home when he finished his work.
他做完工作就回家了。(表示动作的先后)
while用于两个延续性动作同时发生(也有表示转折:“却”的意思)。
. Mother was cooking while father was watching TV.
爸爸看电视的时候妈妈在做饭。
2 hold the line
相当于hold on, wait a moment, just a moment,
打电话用语,意为“等一会儿”。