40. A. interested       B. worried         C. afraid         D. surprised

(A)

    Food is very important to our health. Everyone needs to eat well if he or she wants to have a strong body.

    Our minds, like our bodies, always need the best food. This kind of food is knowledge. We start getting knowledge when we are very young.

    Studying on our own brings us the most knowledge. When we get older, we should enjoy reading and learning all kinds of things. If we just accept(接受) answers without thinking about them, we never learn well. When we study in the right way and get knowledge on our own, we enjoy learning. We also learn more and understand better.

39. A. to hear         B. listening        C. to listen        D. hearing

38. A. very good      B. very well        C. too good       D. so well

37. A. ever           B. out            C. back           D. off

36. A. Somebody      B. No            C. None           D. None of them

35. A. live for        B. live with        C. want to see      D. like

34. A. All of us       B. We all          C. Everyone       D. Every one

33. A. write          B. writing         C. writes          D. written

32. A. music of       B. music about     C. piece of        D. piece by

    31. A. to sit          B. sat            C. sitting          D. is sitting