句型46：practise / enjoy / finish doing

　　A young man practised speaking English with Mr Green.

　　一个年青人和格林先生练习说英语。

　　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 sharks are alike.

　　并不是所有的鲨鱼都一样。

　　Not everyone likes dumplings.

　　并不是每个人都喜欢饺子。

　　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 ...

　　Put the tree in the hole so that it is straight.

　　把树放入洞穴中，让它立直。

　　句型51：be＋num. ＋metres / kilometres / years...＋long / wide / deep / high / old...

　　The Great Green Wall is 7，000 kilometres long.

　　绿色长城长7000公里。

　　The river is about 2 metres deep.

　　这条河大约有2米深。

　　The boy is about 12 years old .

　　这个男孩约12岁。

　　句型52：keep ... from doing

　　The heavy rain kept us from starting out.

　　大雨阻止了我们出发。

　　句型53：with one’s help...

　　With Tom’s help，I’ve come to America to study further.

　　在汤姆的帮助下，我来美国深造。