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 doingThe 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。

　　句型54：I don’t think ...I don’t think any of them is interesting. 我认为他们中任何一个都无趣。

　　句型55：What’s the population of ...？What’s the population of Germany ？德国的人口有多少？

　　句型56：prefer to do … rather than do

　　They prefer to buy a new one rather than repair it. 他们更喜欢买一辆新车，而不愿去修理它。

　　句型57：be worth (doing) …This book is worth reading. 这本书值得读。

　　句型58：regard … asThey regarded their pets as members of their families. 他们把宠物视为家庭成员。

　　句型59：be confident ofI’m confident of success. 我确信会成功。

　　句型60：seem to do / seem ＋adj. / （介词短语）He seems to be angry. 他似乎生气了。The house seems too noisy. 这房子似乎太吵了。

　　句型61：be angry with / about / at（doing）We’re all very angry with ourselves. 我们都很生自己的气。I was angry about his decision to build a factory here. 我很生气他决定把工厂建在这儿。I was angry at being kept waiting. 这样一直等我很生气。

　　句型62：pay for / pay … forHe paid for the book and went away. 他付完书款便离开了。I paid him ￡200 for the painting. 买这幅画我付了他200英镑。