句型46：practise / enjoy / finish doing

　　A young man practised speaking English with Mr Brown.

　　一个年青人和布朗先生练习说英语。

　　Tom enjoys playing football very much.

　　汤姆很喜欢踢足球。

　　He finished reading the story book.

　　他看完了那本故事书。

　　句型47：It’s said that ...

　　It’s said that one of the most dangerous sharks is the Great White Shark.

　　据说最危险的鲨鱼之一是大白鲨。

　　句型48：Not all / everyone ...

　　Not all birds are alike.

　　并不是所有的鸟都一样。

　　句型49：be based on

　　His argument is based on facts.

　　他的论断是以事实为根据的。

　　句型50：... so that ...

　　They got up early so that they could catch the eraly bus.

　　为了能赶上早班车，她们早早就起床了。