第二节 完形填空（共20小题，每小题1. 5分，满分30分）

阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

In 1822 Gregor Mendal was born on a farm in Austria. His father found that Mendal was interested in plants. He knew that his son was clever, and he   36   Mendal to high school. At that time   37   people attended high school. However, since his father could not give him enough money, he always went   38 . Luckily, the other students always gave him food from their       39  

Later, Mendal became a monk(修道士)and   40   his studies. He took care of the gardens at the   41  where he and the other monks lived, and he did   42   with pea plants for eight years. He wanted to prove that parents   43   features to their children. Around 1860, Mendal   44  that plants have recessive and dominant(显性的) genes.

He grew a tall pea plant with a short pea plant. Every one of the first generation of four pea plants was tall. This   45   that tall was the dominate gene.  46   in the next generation of four pea plants, one plant was very   47   . The recessive short genes it received from both of its parents had made it short.

From these experiments, he understood that dominant genes   48   the most often in the   49   . Recessive genes only appeared    50   and only when both parents carried the genes for the features.

To   51   his finding with others, he wrote a paper. But during his lifetime, no one    52  what he had discovered. At the time of his death, he still felt very sad.

   53   , his important discovery was accepted in 1990. We now know that both plants and animals have genes and that genes play a major role in    54   we look, how we act, and whether or not we are  55   to get certain diseases. Today we honor Mendal as Father of hereditizm(遗传学).

36. A. drove B. sent C. forced D. had

37. A. few B. a few C. many D. a lot

38. A. anxious B. crazy C. hungry     D. straight

39. A. plates B. dining-rooms C. dorms D. lunches

40. A. lasted B. stuck C. started D. continued

41. A. village B. hometown C. temple D. school

42. A. researches B. surveys C. observations D. experiments

43. A. passed B. gave C. offered     D. hid

44. A. noticed B. discovered C. declared D. prove

45. A. agreed B. meant C. announced D. informed

46. A. Thus   B. Instead  C. Despite D. Yet

47. A. strange B. fine C. short D. cool

48. A. showed up B. stood out C. set aside D. turned on

49. A. parents B. students C. children D. monks

50. A. seldom B. sometimes C. actually D. mainly

51. A. compare B. share C. satisfy D. cooperate

52. A. concerned with B. worried about C. trusted in D. cared about

53. A. However B. Though C. Finally     D. Regardless

54. A. how B. what C. where D. which

55. A. possible B. obvious C. able D. likely