问题 问答题 简答题

简述玉米穗期的生育特点。

答案

参考答案:

玉米穗期是营养生长与生殖生长并进期,此期不仅茎叶生长旺盛,而且雌、雄穗先后开始分化,茎叶生长与穗分化之间争水争肥矛盾较为突出,对营养物质的吸收速度和数量迅速增加,是玉米一生中生长最旺盛的时期,也是田间管理的关键期。

完形填空

One man was to meet his wife downtown and spend some time shopping with her. He waited   21 for 15 minutes. Then he waited impatiently for 15 minutes more. After that, he became   22  . When he saw a photograph booth (照相亭) nearby, he had   23  . He wore the most unhappy expression he could manage, which was not   24  in the situation. In a few moments, he was holding four small prints that  25  even him.

He wrote his wife’ s name on the back of the photos and handed them to a  26  behind the desk in the booth. “   27  you see a small, dark lady with brown eyes and an apologetic expression, obviously   28  someone, would you please give her this?”he said. He then   29  his office in Morrison Building,   30  that if a picture is worth a thousand words, then the four photos must be a good   31  ! He sat down with a smile.

His wife   32  those pictures. She carries them in her purse now and shows them to anyone who asks if she is married

How are you with   33  ? One person calls it “wait training.” It seems that there is always something we are    34  . We wait on traffic and we wait in lines. We wait to hear about a new job. We wait to complete school. We wait for someone to change his or her mind.

Patience is an important   35  of a happy and rewarding life.   36  , some things are worth waiting for.   37  presents many opportunities for wait training.

We can hate waiting,   38  it or even get good at it! But one thing is   39 ——we cannot avoid it. How is your   40  coming along?

21. A. proudly             B. respectfully             C. patiently                        D. curiously

22. A. angry                B. hungry                   C. frightened                      D. thirsty

23. A. a question                B. a reason                  C. an opinion                     D. an idea

24. A. serious              B. difficult           C. regular                          D. convenient

25. A. hurt                  B. encouraged        C. attracted                        D. shocked

26. A. clerk                 B. secretary                 C. passer-by                       D. friend

27. A. Since                B. Before                    C. As                          D. If

28. A. looking for               B. working for         C. sending for                 D. paying for

29. A. called up           B. returned to       C. visited                    D. left

30. A. worried             B. disappointed      C. satisfied                  D. surprised

31. A. description               B. preparation        C. excuse                         D. lecture

32. A. tore                  B. saved                     C. developed               D. destroyed

33. A. your wife                 B. your family            C. patience                  D. determination

34. A. hoping for                B. waiting for             C. ready for                       D. fit for

35. A. lesson               B. experience          C. purpose                       D. quality

36. A. For example      B. After all                 C. Right now                     D. So far

37. A. Every age                B. Every shop               C. Every day                      D. Every office

38. A. accept               B. control                   C. change                          D. improve

39. A. certain              B. interesting          C. precious                       D. easy

40. A. photo taking       B. job hunting        C. decision making        D. wait training

问答题 简答题