Unit 4单词、短语、重点句型梳理
重点单词
puzzle
【课文原句】How life began on earth is one of the biggest puzzles that scientists found hard to solve. (Page 27)
【点拨】puzzle n. 不解之谜；疑问。如:
What the sign stands for has always been a puzzle.
【拓展】请看下面例句,注意puzzle及其派生词在句中的词性、意义和用法。
The company has produced many books of puzzles for children. (n. 谜；智力游戏)
We’re still puzzled about how the accident could have happened. (adj. 迷惑不解的)
The teacher is explaining the puzzling problem to his students. (adj. 令人费解的；莫名其妙的)
She listened with a puzzled expression on her face. (adj. 迷惑的；困惑的)
【小试牛刀】将下列句子翻译成英文。
1. 生命是如何起源的至今还是个谜。
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2. 令我不解的是她为什么要那样说。
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