Unit 1 Tales of the unexplained

Language points

Teaching aims:

1. Help Ss learn more about the story

2. Help Ss grasp the usage of the words and expressions

Teaching procedures:

Language points

1. Boy missing, police puzzled.

= A boy went missing, and the police were puzzled.

missing和puzzled分别为现在分词和过去分词作表语。现在分词作表语和主语之间往往是主动关系，表示主语的性质；过去分词作表语和主语之间往往是被动关系，表主语所处的状态。

2. Police in America have stepped up their search for a fifteen-year-old boy who went missing...

step up 增加，加速，提高

e.g. He has to step up his training to prepare for the race.

他为准备那场赛跑不得不加强训练。

词语拓展：

step forward 走上前来，跨前一步

step back （由于吃惊）后退一步

step inside (in) 进屋里来

step into 进入里面

step by step 一步步地

out of step 合不上步子

take step (a step) 采取措施，走（一步）

go missing 失踪 此处go为系动词。

go + adj. ( become + adj. ) 如：

He went/became crazy when he found out that he had failed the exam.

The heat has caused the milk to go sour.

3. This incident has received great interest due to reports of ...

due to ( because of, caused by) 由于，因......而造成...... 如：