课时跟踪检测 选修六 Unit 5 The power of nature
(计时：45分钟)
Ⅰ.词汇知识
1．I sent a big bunch of flowers to the nurse as an ________ of thanks for her taking good care of my grandpa in the nursing home.
A. attitude B. impression
C. appreciation D. expression
答案与解析 D 句意：我给护士送去一大束鲜花以表谢意，感谢她在我爷爷住疗养院期间给予的悉心照顾。an expression of thanks是express one's thanks的变形。C项若能与题干构成an appreciation of her taking good care of ...结构，也可当选。
2．According to our principal, all children should be encouraged to realize their full ________.
A. consequence B. entertainment
C. presentation D. potential
答案与解析 D 句意；按照我们校长的观点，应该鼓励所有的儿童充分发挥他们的潜能。potential“潜力；潜质”。前三项分别表示“结果”“娱乐”“提交；出示”，都与句意不符。
3．(2013·合肥市第三次质量检测)Frank's ability to learn from observation and experience ________ greatly to his success in public life.
