脑骨由（）块骨构成。A、1 B、4 C、8

进入20世纪后，几乎每年至少有一种鸟类或哺乳动物从地球上消失，造成野生动物濒危和灭绝的主要原因是[ ]

A．自然灾害

B．天敌过多

C．生态环境被破坏

D．动物瘟疫

III. 完型填空（共20小题，每小题1.5分，满分30分）

A very little boy was spending his Saturday morning playing in his sandbox. He had with him a plastic pail(桶) and a shiny, red plastic shovel(铲). In the   36   of creating roads and tunnels in the sand, he   37   a large rock in the middle of the sandbox.

The boy dug around the rock,   38   to move it off the dirt. At first, he wanted to carry it out of the sandbox with his hands; however, it was too heavy. Later, with much   39  , he pushed the rock across the sandbox by   40   his hands. When the boy got the rock to the   41   of the sandbox, he found that he couldn’t roll it up and   42   the little wall.   43  , the little boy pushed, but every time he thought he had made some   44  , the rock tipped(翻滚) and then fell back into the sandbox. The little boy pushed and pushed, but his only   45   was to have the rock roll back.

Finally he   46   tears. All this time the boy’s father watched from his living room window   47   the drama was unfolded. The moment the tears fell, a large   48   appeared across the sandbox. It was the boy’s father. Gently but   49   , he said, “Son, why didn’t you use all the strength that you had?”

Defeated, the boy   50   back, “I did! I did！I used all the strength that I had!”

“No, you didn’t. You didn’t ask me for help.” The father   51   down, picked up the rock and dropped it off the sandbox.

Do you have “rocks” in your life that need to be   52  ? Are you discovering that you don’t have   53   it takes to lift them? There is someone who is willing to give us the   54   we need. Maybe, it’s sometimes a good idea to ask others for   55   when we meet difficulties we can’t overcome.

36. A. method               B. step                         C. practice                    D. process

37. A. created               B. set                           C. discovered                D. brought

38. A. trying                 B. managing                 C. deciding                   D. competing

39. A. thought               B. struggle                    C. movement                D. worry

40. A. touching             B. shaking                    C. using                       D. controlling

41. A. bottom               B. center                      C. edge                        D. front

42. A. over                   B. down                       C. through                    D. into

43. A. Doubted             B. Surprised                 C. Pleased                    D. Determined

44. A. attempt               B. progress                   C. effort                       D. decision

45. A. hope                   B. reward                            C. point                        D. purpose

46. A. made out            B. broke out                 C. burst into                 D. rushed into

47. A. so                      B. as                            C. until                        D. before

48. A. rock                   B. picture                            C. figure                      D. shade

49. A. surprisingly         B. doubtfully                C. kindly                      D. firmly

50. A. shouted               B. smiled                      C. called                       D. asked

51. A. reached               B. looked                            C. fell                          D. put

52. A. pushed                B. dropped                   C. carried                            D. removed

53. A. who                   B. what                        C. which                      D. where

54. A. minds                 B. spirits                      C. force                        D. strength

55. A. help                   B. tips                          C. advice                      D. ideas

下班离开前，应将办公室的电器设备电源（）

A.尽量切断

B.调为节电休眠模式即可

C.正常打开

D.都可以

下列关于利率和汇率的说法错误的是( )。

A．不随借贷资金的供求状况而波动的利率叫固定利率，参照某一利率指标变化而定期调整的利率叫浮动利率

B．不随各国货币的供求状况而波动的汇率叫固定汇率，参照某一汇率指标变化而定期调整的汇率叫浮动汇率

C．官方利率是由政府部门确定的，而市场利率是由市场供求关系确定的

D．官方利率只能在一定幅度内波动，市场利率可以自由波动

调节尘棒间距，一般是通过调节尘棒的（）来实现的。

A.工作角

B.安装角

C.清除角