46,这是一个复习课文的新方法
47,学会怎样去学习才是最重要的
48,There was an Science exam in Li Ming's class (last week),Li Ming (did) well in it.
49,Daniel taught Li Ming a good way of study.It is called ("Map idea");
50,Because of the idea,Li Ming could find out the (main idea) of every lesson,and rememberd
(a lot)