资源看点：此课件设计美观，视频和音频齐全，教学内容合理，听觉和视觉舒适。

Many American  people don’t remember what they were doing when Dr Martin Luther King was killed.  (     )
Robert Allen was watching TV when he heard about Dr Martin Luther King’s murder.    (     )
Many Americans remember the day of September 11, 2001.    (     )
Yang Liwei is the first man who walked on the moon.   (     )
Yang Liwei is a national hero in China.    (     )
1. What happened on July 20, 1969?
 Man first walked on the moon.
B. Yang Liwei went into space.
2. How many hours did Yang Liwei’s first flight（飞行；航班；班机）around the Earth last?
 22 hours.          
B. About 22 hours.
People in the USA think that it is important to know the time. In cities of America, there are clocks in stations,