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统编人教版高中必修第二册英语《Unit 4 History and traditions》集体备课PPT课件下载
Learning new words
1．puzzle n．谜；智力游戏；疑问
vt.迷惑；使困惑
(教材P40) Getting to know a little bit about British history will help you solve this puzzle．
了解一点英国历史将有助于你解决这个难题。
例句：
I’m in a puzzle as to what to do next.
对于下一步该做什么我也不知道。
My sister puzzles me and makes me anxious.
我妹妹总让我捉摸不透，弄得我焦虑不安。
Learning new words
(1)be in a puzzle 感到困惑
be a puzzle to sb． 对某人来说是个谜
(2)puzzle about/over 苦苦思考
(3)puzzled adj． 困惑的，迷惑不解的
puzzling adj． 令人迷惑不解的
例句：
①I saw him puzzle over an arithmetic problem.
我看见他正在苦心思索一道算术题。
②I’m in a puzzle as to how to get along with him．
对如何和他相处使我感到困惑。
Learning new words
2．evidence n．证据；证明
例句：
①There is now convincing evidence that smoking causes lung cancer．