用preserve和reserve填空

　　①These seats are reserved for the elderly.

　　②Salt can be used to preserve food.

　　4．length n. [U]长度；长

　　★背诵佳句培养语感

　　(教材原句)　It is world­famous for having the most length in the smallest space.

　　它因为在最小的空间内拥有最长的长度而闻名于世。

　　(鲜活例句)　This room is twice the length of the other.

　　这个房间的长度是另一个房间的两倍。

　　★归纳拓展全析考点

　　in length　　　　　　在长度上；......长的

　　at length 详尽地；最后

　　①The bridge is 200 metres in length.

　　那座桥有200米长。

　　②He was asked to tell the policeman the accident at_length.

　　他被要求详细地把事故讲给警察听。

　　Ⅰ.单句语法填空

　　1．Everyone arrived late at the party for various (vary) reasons.

　　2．Sometimes, the children play chess for amusement (amuse)．

　　3．Attracted (attract) by the beauty of nature, he even forgot the time.

　　4．The ship is equipped with special refrigerating devices to preserve food for the whole voyage.

　　5．The snake is about a metre in length (long)．

　　6．Wherever he goes, a team of soldiers goes with him.

　　Ⅱ.完成句子

　　1．菜单上有种类繁多的菜肴。

　　There's a_variety_of/varieties_of dishes on the menu.

　　2．使我们感到好笑的是那个男孩扮演了一个老太太。

　　To_our_amusement,_the boy acted as an old woman.

　　3．士兵们挥舞着手臂向前行进。

　　The soldiers marched along, swinging_their_arms.

　　4．我认为这些有趣的旧习俗应该保留下来。

　　I think these interesting old customs should_be_preserved.

　　5．长城是一处重要的旅游景点。

　　The Great Wall is an_important_tourist_attraction.