句型36：Help oneself to...

　　Help yourself to some fish.

　　吃鱼吧！

　　句型37：used to do sth

　　I used to read this kind of story books.

　　我过去常读这种故事书。

　　句型38：borrow ... from...

　　I borrowed an English book from him.

　　我从他那借了一本英语书。

　　句型39：lend sb. sth.= lend sth. to sb.

　　He lent me a story book=He lent a story book to me.

　　他借我一本故事书。

　　句型40：have been to...

　　Have you ever been to CHINA?

　　你曾去过中国吗?