第一学时 reading and comprehension
as we know, thomas edison who showed great interest in science was a worldfamous american inventor. it's amazing that during his career he made 1,093 inventions, many of which have changed our life. perhaps you wonder why edison was able to make so many inventions. this is because he was just the man who never gave up although he met great difficulties or failed over and over again. and he always thought that no matter how challenging the problem seemed, he could find the answer using the scientific way to defeat it. meanwhile, he held the belief that nothing was
