56.众所周知，肺癌至少部分是由于吸烟过多而引起的。

Section BDirections: This section is to test your ability to understand short conversation.There are 2 recorded conversations in it.After each conversation, there are some recorded questions. Both the conversations and questions will be spoken two times.When you hear a question, you should decide on the correct answer from the 4 choices marked A, B, C and D given in your test paper. Then you should mark the corresponding letter on the Answer Sheet with a single line through the center.Conversation 16.

57.要是我们接受了他的建议，我们本可以避免犯这样的错误的。

26. —That man looks familiar. —Really? Have you forgotten _____ to him at David’s party?

58.他会说点汉语，因此能很容易地适应北京的生活。

61.鉴于以上所述，我认为大学生有必要参加社会实践。

49. How to keep stress proper:(1) Have a balanced life.(2) Have and have healthy food.

25. —May I play the computer game tomorrow, Dad?—Certainly not, unless your homework _____ by then. 

40. Which of the following has the same meaning with the last two sentences?

30. This pair of shoes_____ my brother’s. It’s too small for him. 

（ ）52. As an excellent basketball player, Jonathan plays an active part in all of the school’s activities. He thinks sports can help people keep healthy and everybody should take part. He wishes to arrange some activities that everybody could join in.  

20. The new highway is almost _____ than the old one.