通读下面短文,掌握其大意,然后在各题所给的四个选项中选出一个最佳答案。

A

The students of Class Four are having a biology. Li Ming is asleep. The teacher wakes _36_ and says, “ Don’t sleep in class. You should listen to me and work hard _37_ your lessons.”

“I am sorry, Mr Wu.” Says Li Ming, “ I feel terrible.”

“ Are you ill?” asks the teacher. “Shall I take you to the doctor’s?’

“ No. I’m not ill. Thank you.” Answers Li Ming. “ I didn’t go to bed_38_ twelve last night.”

“ Why didn’t you go to bed_39__ last night? Did you have a lot of homework_40_” says the teacher.

“No, I had _41_ to do. To my surprise. You forgot that there was a football match_42_ TV last night.” Says Li Ming angrily.

“You are a student. It is your duty _43_ your lessons well.” Says the teacher.

“You are right. Mr Wu,” says Li Ming, “ But I’m good at my lessons. I have done well in them.”

“Really? Please answer my question,” says the teacher, “How _44_ does a mouse live?”

“It is an easy question. If the cat is hungry. The mouse will be a short life. If the cat is full, the mouse will live a long life,” says Li Ming _45_ a smile.

36. A him up   B up him   C his up   D up himself 

37. A for    B with    C at     D of 

38. A early    B when   C before   D until

39. A early    B late    C earlier   D later 

40. A do     B to do    C doing   D did 

41. A nothing   B anything   C something  D everything

42. A on     B at      C over    D for 

43. A learning  B to learn    C learn    D learned 

44. A long    B often     C far     D many

45. A with   B in    C on    D for

B

_46_ all things we eat and drink, water is _47_ important. Not many _48_ understand this, but it is quite true. The human body can go without food or a long time, but after two or three _49_ without water men usually will _50_. Many people do not understand how much _51_ the human body needs and many people do not drink _52_. Most people drink _53_they are thirsty, but in fact we often need more water.

  A man’s body is of about 70% water. If we don’t have enough water, we feel _54_ and may _55_ ill. Do you know what the best drink is?

46.A. At      B. By       C. For        D. Of

47.A. least     B. more      C. most       D. the most

48.A. students    B. people     C. doctors      D. parents

49.A. days     B. hours      C. weeks       D. seconds

50.A. live      B. living     C. die        D. dead

51.A. drink     B. fruit      C. water       D. food

52.A. full      B. enough     C. necessary      D. plenty

53.A. when     B. as soon as    C. before       D. after

53.A. hungry     B. angry     C. tired        D. fine

55.A. turn     B. grow      C. get         D. become

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