必修3第四单元A visit to the moon导学案

必修3第四单元A visit to the moon导学案

第四课时    a visit to the moon
teaching aims:
to read and understand the text.
to master the new words and useful expressions.
课前预习：
一.单词学习
1.拉力；牵引力                    2.宇宙飞船               
3.欢呼                            4.漂浮                   
5.团；块；质量                 
二.词组学习
1.为……欢呼                      2.既然                   
3.熟悉；掌握                           
4.做一次旅行                    
5.爆发              
课堂学习 
task 1: fast reading
ask the students to read the passage and then describe three ways in which gravity changed for li yanping and how his weight changed.
                the way gravity changed              how his weight changed
left the earth                                                                 
in space