宁天城际列车在驶入葛塘存车线至转换轨JD1/JD2信号机前，需要确认（）信号机、X0

（3分）试用化合价升降法配平下列化学方程式。

  H₂SO₄+ H₂S ——  SO₂ + S + H₂O

第二节   完形填空（共20小题，每小题1.5分，满分30分）

Teaching second grade is always a challenge. Each student arrives at school with his own needs and difficulties. One year a student called Billy   36   me with his behavior as well as his academic requirements. He struggled daily with his   37   emotions and often became angry or violent. I knew that, to make   38   progress, his emotions needed controlling. 

One   39   I tried to help Billy was to have him come directly into the classroom when he arrived at school. Billy’s mom would   40   me to alert (警告) me to a particularly emotional morning at home. Then, I would focus on   41   his anger and calming him down before the other students arrived.

One week our class was studying   42  . I thought one way to bring learning into the classroom was to bring my dog Rocky to school for the day.

That day began as normal. I was preparing activities focused on dog themes   43   I was told that Billy had a   44   morning at home and I might need to get him   45  . As I was talking to his mom, Billy   46   into the classroom. To Billy’s   47  , Rocky immediately ran up to his new   48  , wagging his tail and licking Billy’s face with doggy affection. Billy couldn’t   49   Rocky’s charm (魅力) and began laughing as his anger melted away.

Throughout the day, Billy never left Rocky’s side, feeding him, being gentle with him and even   50   the other students while Rocky was sleeping.

Billy was known for doing anything he could to avoid   51  , but on this day he found a good dog story, “Clifford’s Puppy Days,” and read it to Rocky. How   52   I was at the sight of Billy reading happily！My little dog was able to   53   Billy’s day from one of anger and frustration to one of laughter, gentleness and   54  .

That day Rocky more than helped me with my   55  ; he helped to change the life of a child! After that Billy’s behavior definitely improved.

36. A. challenged     B. cheated C. benefited    D. betrayed  

37. A. unforgettable    B. uncontrollable    C. unconscious       D. unfortunate   

38. A. physical         B. mental      C. academic         D. authentic 

39. A. advantage      B. agenda      C. reason             D. way

40. A. awake        B. call          C. visit             D. sign

41. A. tolerating       B. observing     C. relieving          D. ignoring

42. A. emotions       B. pets          C. botany          D. diet   

43. A. after      B. as          C. when             D. before

44. A. boring    B. fantastic       C. busy               D. rough

45. A. settled    B. punished      C. treated              D. excited

46. A. fled            B. stormed       C. jogged              D. floated

47. A. surprise         B. delight     C. shame         D. fear

48. A. protector       B. trainer       C. friend         D. owner

49. A. resist          B. describe       C. reduce         D. forget

50. A. educating    B. envying   C. comforting     D. quieting

51. A. exploding      B. reading C. arguing            D. apologizing

52. A. surprised       B. disappointed C. amused         D. confused

53. A. urge          B. shorten        C. transform          D. expand

54. A. admiration   B. curiosity  C. anxiety           D. love

55. A. family       B. teaching        C. housework         D. performance

竖直向上抛出的物体，由于受到空气的阻力，加速度大小为3/2g，如果所受的空气阻力大小不变，则该物体在下降阶段加速度的大小为( )。

A．3/2g

B．g

C．1/2g

D．3g

变革的阻力是积极的，因为（）

A.它为行为和生产率提供了一定的稳定性

B.如果没有一定的阻力，组织行为就会呈现混乱无序的状态

C.阻力可以成为建设性冲突的来源

D.以上全部

调试工程概算定额中不包括以下内容（）。

A.调试方原因延长的调试工期

B.配合整个工程的达标创优工作

C.调试方原因增加的调试工作

D.调试方原因重复的调试工作