39. Difficulties can ______ a person’s best qualities.

11.教学策略不是固定不变的，而是与真实的教学情境相连，有时候同一策略可以解决不同的问题，不同的策略也能够解决相同的问题。这描述的是教学策略的哪个特点（ ）。

48. The only unusual thing in this entire arrangement is that there is no sound for this live broadcast.

6.以下不属于教师威信的意义的是（ ）。

12. Fine violins by skilled old Italians can ________ hundreds of thousands of dollars, and prices still keep rising.

44. I had ______ closed my eyes when the telephone rang.

7. The police have already investigated some witnesses and the ________ is that it was just an accident, even among the families.

55. To stay warm in cold weather, cold-blooded animals must expose itself to a source of warmth such as direct sunlight.

20. As Charles Darwin wrote in The Descent of Man, “The highest possible stage in moral culture is ________ we recognize that we ought to control our minds.”

21. Just as Martin Luther King, Jr. said, peace is not merely a distant goal that we seek, but a means ________ we arrive at that goal.

三、判断题（10分。正确请选A，错误请选B。）46. Human being have thirty-three or thirty-four vertebrae，but a snake may have as many as three hundred.

3.根据《中华人民共和国教师法》教师有哪些做法时，所在学校、其他教育机构或者教育行政部门可以给予行政处分或者解聘。（ ）