It is simplicity that makes the uneducated more effective than the educated when addressing popular audiences.（Aristotle）
（2）when還可表示“正在那時，突然”的意思，此時其所引導的從句隻放在主句之後。如：I was standing on the first tee at the KGA Golf Club in downtown Bangalore，in southern India，when my playing partner pointed at two shiny glass-and-steel buildings off in the distance，just behind the first green.（The World Is Flat）
Tarun Das was heading the federation of Indian Industry when the wall fell in Berlin，and he saw its ripple effebsp;felt all the way to India.（The World Is Flat）
2.as引導的時間狀語從句
as引導的時間狀語從句的動作是延續性的，而且側重表示主句和從句的動作同時發生。如：You will find as you look babsp;upon your life that the moments when you have truly lived are the moments when you have done things in the spirit of love.（Henry Drummond）
3.while引導的時間狀語從句
while表示“在某一段時間裏”或“在……期間”，其所引導的從句的動作是延續性的，並側重表示和主句的動作同時發生。如：A lie bsp;travel halfway around the world while the truth is putting on its shoes.（Mark Twain）
The life of the nation is cure only while the nation is horuthful，and virtuous.（Frederibsp;Douglass）
It is simplicity that makes the uneducated more effective than the educated when addressing popular audiences.（Aristotle）
（2）when還可表示“正在那時，突然”的意思，此時其所引導的從句隻放在主句之後。如：I was standing on the first tee at the KGA Golf Club in downtown Bangalore，in southern India，when my playing partner pointed at two shiny glass-and-steel buildings off in the distance，just behind the first green.（The World Is Flat）
Tarun Das was heading the federation of Indian Industry when the wall fell in Berlin，and he saw its ripple effebsp;felt all the way to India.（The World Is Flat）
2.as引導的時間狀語從句
as引導的時間狀語從句的動作是延續性的，而且側重表示主句和從句的動作同時發生。如：You will find as you look babsp;upon your life that the moments when you have truly lived are the moments when you have done things in the spirit of love.（Henry Drummond）
3.while引導的時間狀語從句
while表示“在某一段時間裏”或“在……期間”，其所引導的從句的動作是延續性的，並側重表示和主句的動作同時發生。如：A lie bsp;travel halfway around the world while the truth is putting on its shoes.（Mark Twain）
The life of the nation is cure only while the nation is horuthful，and virtuous.（Frederibsp;Douglass）