听下面一段材料，回答第1-4题。 1. How about Linda's English according to the man? A. Poor B. Good C. So-so 2. Why does Linda have some problems to understand the lectures? A. The lectures often tell some slang. B. Her listening comprehension is very poor. C. There are many kinds of accents in the speeches. 3. How does the lecturer start his talk according to Linda's example? A. By talking with the listeners. B. By telling a couple of jokes. C. By introducing himself. 4. What's Linda's ways to understand different kinds of speeches? A. To study other's notes, ask for other's help and read the handouts(讲义、提纲). B. To learn own notes, ask th e lecturer and herself questions C. To get help from teachers and classmates