eg. I wonder how you came to miss your way.

　　I wonder what happened.

　　句型：I wonder if +从句

　　I wonder if I shall call him now.

　　2.强调句型：It is/was +被强调部分+ that+其余部分

　　改写句子

　　Class 1 and class 2 had a basketball game in the playground yesterday.

　　It was class 1 and class 2 that had a basketball game in the playground yesterday.（强调主语）

　　It was yesterday that class 1 and class 2 had a basketball game in the playground.（强调时间）

　　It was in the playground that class 1 and class 2 had a basketball game. （强调地点）

　　3.There was a time when+从句

　　Eg. There was a time when I liked to draw some paintings.

　　句式仿写：

　　1）.曾经有过一段时期我对自己失去信心。

　　There was a time when I lost confidence/ faith in myself.

　　2）.曾经有过一段时期我很讨厌上学。 但是现在一切都改变了。

　　There was a time when I hated to go to school. But now everything has changed.

　　4. It was the first time in a year and a half that I'd seen the night face to face.

　　重点句型：

　　It was the first time... that...+had done (过去完成时)

　　It is the first time...that +has/have done (现在完成时)

　　那是我们第二次看到她。

　　It was the second time that we had seen her.

　　It is the second time that we have seen her.

　　5. on purpose

　　Eg. I came to the hospital on purpose to see you

　　with the purpose of ＝ for the purpose of

　　6. in order (not) to do

为了养家糊口,父亲努力工作。