1、本网站免费注册后即可以下载，点击开通VIP会员可无限免费下载！
2、资料一般为word或PPT文档。建议使用IE9以上浏览器或360、谷歌、火狐浏览器浏览本站。
3、有任何下载问题，请联系微信客服。
扫描下方二维码，添加微信客服
While John was playing the piano, Mary left the house. / John was playing the piano when Mary left the house.
While John was cleaning his room, Mary turned on the radio. / John was cleaning his room when Mary turned on the radio.
While John was shopping, Mary took the car to the car wash. /
John was shopping when Mary took the car to the car wash.
4b
Fill in the blanks with was, were, when or while.
At 7:00 a.m., I work 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 ______
while
was
was
while
When
was
in bad shape from hitting a tree. But luckily, the driver _______ fine. The roads ________ icy because of the heavy snow from the night before.
was
were
when and while
Both of them mean ”当……的时候”.
Are they the same?
No ！！！
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.
我们到达机场时, 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。?
when
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.
他正在看书时, 电话铃响了。