57. As we know , farmers in China p ____ their fields in autumn or spring.

56. Mr Li has been teaching for more than 20 years and he has a lot of e ___in teaching

The hall was crowed. I had ever seen it so __21___in all my thirty years. The professor , ___22___ was on a raised platform, __23_____ very slowly from his chair. There was a sudden outburst (爆发 ) of cheering and applause (掌声 ). which __24___ several minutes. __25___ one of the five men on the platform ___26__ first one hand, and then both hands before the noise__27___.

　 "I don't think I _28____ introduce Professor Evans," he said. There was a great cheer _29___ this ."He isn't ___30___ to you." __31__ this there was a stamping of feet(脚步声 ) , and the man sat down.

　 The professor, a short fat man. smiled and looked at his __32___ . He was quite bald (秃的 ) and wore glasses . He seemed __33___ because he cleared his throat ( 喉咙) twice. He put a hand into one of the side pockets of his jacket.

　 His frown ( 眉头) became __34___ heavier and the hall grew completely silent _35____ he stood __36___ his audience (观众 ) . It was __37___ silence. It was hot in the hall and there was little air. I was sitting near the platform and I could clearly hear the loud __38___ of the clock on the wall. _39____ , the professor very quickly turned his back to us, and __40___ to the other men on the platform. He ___41___ he wouldn't be heard by the audience. __42___ there wasn't one of us in the first five rows who didn't _43____ the words "I have __44___ my _45____."

21. A. empty　 B. full　 C. comfortable C. troublesome

22. A. that　 B. what C. who　 D. which

23. A. got up　 B. got away　 C. got back　 D. got over

24. A. remained B. saved C. wasted D. lasted

25. A. Finally　 B. Suddenly　 C. Occasionally　 D. Smilingly

26. A. gave　 B. showed　 C. asked for　 D. raised

27, A died down B. disappeared C. was missing D. invisible

28. A. need　 B. need to　 C. can't　 D. dare to

29. A. of　 B. with　 C. at　 D. to　

30. A. unknown　 B. unkind　 C. unimportant　 D. unlearned

31. A. To heat　 B. On hearing　 C. On seeing　 D. To think of

32. A. pupils　 B. students　 C. audience　 D. teachers

33. A. nervous　 B. sick　 C. very well D. very polite

34. A. still　 B. very　 C. even　 D. to　

35. A. until　 B. if　 C. whenever　 D. as

36. A. looking at　 B. glaring at　 C. staring at　 D. laughing at

37. A. a comfortable B. an uncomfortable C. an unexpected D. a puzzled　

38. A. strike　 B. tick　 C. hit　 D. beat

39. A. Obviously　 B. Joyfully　 C. Surprisingly　 D. Frightfully　

40. A. whispered　 B. whistled　 C. shouted　 D. talked

41. A. said　 B. thought　 C. promised . permitted

42. A. because　 B. as　 C. though　 D. but

43. A. make up B. make out　 C. steal away　 D. give

44. A. lost　 B. missed　 C. thrown　 D. left　

45.A. book　 B. pen　 C. secretary　 D. notes

20. The pen he is using now is not ___ that his father gave him

A. one B. the one C. ones D. the ones

19. Jim said that he had arrived ___ .

A. yesterday B. the day before C. the next day D. the day after tomorrow

18. They asked him ____ it was a good idea to sow wheat close together

A.　 that　 B. when C. how　 D. if

17. The new pictures are ___ better than the old ones .

A. very　 B. more C. lots of　 D. much

16. The car hit the wall and ____ .

A. turned into B. turned over C. turned down D. turned up

15. The book is ____ to be an important summary of the knowledge of farming.

A. made B. written C. considered D. kept