一、 易混词语 when-while each-every surprising-surprised-amazing happen-take place accident-event everyday-every day 二、 常用词组 1. get out of 2. go into 3. walk down 4. take off 5. be surprised 6. the Museum of Flight 7. take turns 8. tell stories 9. jump down (from) 10. take photos 11. run away 12. think about 13. next to 14. in history 15. shout to/at 16. hear about 17. at that time 18. have fun 19. in science 20. take place 21. the World Trade Center 22. around the earth 23. all over the world 24. come out of 25. divide into 三、 重点句子 1. The boy was walking down the street when the UFO landed. 2. While the girl was shopping , the alien got out. 3. Our teacher asked us to stop what we were doing and listen. 4. Not all events in history are as terrible as this. 5. People often remember what they were doing when they heard the news of important events in history. 四、 语言语法 谈论过去的事情,过去进行时(was/were 动词的过去分词) 这是我在一个网站里找到的。这个网站的网页是 http://www.ewteacher.com/