第四节：听独白，根据独白内容，口头回答问题。独白听两遍。（每小题2分，共4分）
Tim is a student in Grade 8 now. He has some worries. This term, he has a new subject—physics. He thinks it is very difficult. He can’t find good ways to learn it well. What’s more, he is a careless boy, and he often makes mistakes in his homework. He is upset about it. He wants to be more careful. And he thinks all the subjects are more difficult than those in Grade 7. So he spends more time on his homework every day. Sometimes, he has to stay up until 11 o’clock in the evening to finish it, so he doesn’t have enough sleep these days.