仁爱版八年级下册unit6topic2sectiona.ppt

Revision
When与While的区别
第一页
1. Tom was singing while Maria was dancing.
2. She was writing when I came in.
3. I came in when /while she was writing.
While 引导的从句，谓语动词常是延续性的， 并常用进行时。
When 引导的从句，谓语动词既可以是短暂性的，也可以是延续性的。
when /while 意为“当…时候”，引导的是时间状语从句
第二页
Fill in the blank with “when ”or “while”
1. ___I got home ,he was having supper.
2. It was raining ___ we arrived.
were running ____she was swimming.
4. He knocked at the door_____ she was reading.
When
when
while
when/while
第三页
cook/play
Make sentences with “when ” or “while”.
while
What was Kangkang doing while his mother was cooking?
Kangkang was playing computer games while his mother was cooking.
第四页
while
What was Maria doing while Jane was running?
Maria was swimming while Jane was running.
run/swim
第五页
Congratulations
watch/ring
when
What was Kangkang doing when the telephone rang?
Kangkang was watching TV when the telephone rang.
The telephone rang when
Kangkang was watching TV.
/while
第六页
Congratulations
write/ knock at
when
What were Kangkang and Jane doing when Michael knocked at the door?
Kangkang and Jane were writing when Michael knocked at the door.
Michael knocked at the door when Kangkang and Jane were writing
/while
第七页
Do you like traveling?
Would you like to visit ……？
Let's talk
第八页
Where are these places of interest?
第九页
the Great Wall
第十页