n.＋­al→adj. a­开头高频词 continental 大陆的；大洲的

formal 正式的

normal 正常的

central 中央的

agricultural农业的 across prep.横过；穿过

ahead adv.在前面

aloud adv.高声地

aboard adv.在船（飞机；火车；公共汽车） adv.在船(飞机；火车；公共汽车) 　　Ⅲ.补全短语

　　根据提示补全下列短语

　　1．off the coast　　　　 在(离岸边不远的)海面上

　　2．in the south of 在......南部

　　3．on the coast 在大陆靠近海岸处

　　4．be covered with 被......覆盖着

　　5．be famous for 因......而著名

　　6．be known as 作为......而出名/闻名

　　7．because of 因为；由于

　　8．of all time 有史以来

　　9．work on 从事；致力于

　　10．ever since 自从......以来

　　Ⅳ.选词填空

　　选用上述短语的适当形式填空

　　1．The old man lost his money and he has been worried ever since．

　　2．He wrote a long moving poem in memory of Qian Xuesen who is known as"Father of Chinese Rocketry"．

　　3．He was late for school because of the heavy rain.

　　4．Nanjing is a beautiful city which is off the coast of the Yangtze River.

　　5．The mountain is covered with snow all the year round.