1. 合成词在英语中比较活跃。合成名词的数量很大, 可以在句中作主语、宾语等。如:
1) Sightseeing took up the whole morning.
(作_____ )
主语
观光
2) Finally they reached a cross-roads. ( ) ( 作______ )
十字路口
宾语
3) Smoking is not allowed during take-off. ( ) (作___________)
飞机的起飞
介词宾语
( )