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.”

52. For convenience it is common to speak of plants as “herbs,” “shrubs,” and “trees,” but it is really no sharp distinctions among them.

25. —Mr. Smith, I’m sorry to bother you, but it’s the third day of June today.—Oh, _____ rent! I’m sorry it’s late. I’ll write you _____ check right now.

5.课外、校外教育是课堂教学的延伸。

2.新课程强调高中要以分科和综合课程为主，更好的发展学生的创新思维。

2.以下属于班级管理原则的是（ ）。

2. Beijing has set the city’s population ________ at 23 million by 2020 due to water scarcity and big city diseases such as traffic jam.

49. Every individual cell, whether its exists as an independent microorganism or is part of a complex creature, has its own life cycle.

36. Lady Alice was ______with joy when her child was given back to her.

27. The beauty of a tournament like the World Cup is _______ it can be wildly unpredictable.

22. When a child is ________ to peanuts, families must closely monitor everything the child eats both in and outside the home, because accidental consumption of peanuts could cause death.

10.（ ）是教育心理学研究中所采用的最普遍、最基本的方法。