21. A mother will sacrifice her life for her children.
A） devote B） satisfy C） attend D） contribute
A. 分析：根据词语的习惯搭配使用特点解题：
devote one's life/ time/energy/oneself to……
satisfy purposes/needs/requirements/ be satisfied with
attend a meeting/a class/ sb.
contribute books/ money/ clothes to……
22. I am sorry I can't grasp the meaning of the book you asked me to read yesterday.
A. understand B. take
C. accept D. agree
A.分析：考察常见词的用法。
23. Coal of all kinds originated from the decay of plants.
A） arose B） suffered C） heard D） died
A. 考点：考察结构相近的短语的辨别。
arise from v.起于
hear from v.接到……的信
suffer from v.忍受, 遭受
die from v. （病以外）因某事而死
24. He received penalty for drunk driving.
A. pension B. fine
C. complaint D. compensation
B.线索：借助题干中核心结构的词义色彩缩小答案范围。drunk driving是贬义词，因此排除A和D.借助常见搭配：complain（ make a complaint） of/about……/抱怨……，排除C，所以答案是B（罚款）
考点：考察常见词（fine）的其他用法。
Receive: v. 受到，经历, 遭受, 欢迎/接待
receive good treatment受到好的对待
receive guests欢迎客人
retirement pension退休金
social security-type pensions社会保险[障]型养老金
unemployment pension失业救济金
25. Traditional Chinese medicine is famous for using herbs（香草） with healing properties
A. possessions B. components
C. attributes D. purposes
C. 线索：借助搭配结构含义判断答案（"有治疗（特性）的香草"最合适。）
possession n.有, 所有, 拥有; [pl. ]所有物; 财产, 财富; 所有权
personal possessions 个人财产