mushroom n．蘑菇，伞菌

sunlight n．阳光，日光

steamboat n．汽船 security n．安全

sincerity n．真诚，诚意

activity n．活动 　　

　　Ⅲ.补全短语

　　根据提示补全下列短语。

　　1．speak of　　　　　　 提到；谈及

　　2．be filled with 充满......

　　3．give off 发出，放出(气味、热、光等)

　　4．all of a sudden 突然

　　5．come across 发现；偶遇

　　6．in the distance 在远处

　　7．blow up 爆炸；引爆

　　8．hold on to 紧紧握住

　　9．in a flash 刹那；转眼间

　　Ⅳ.选词填空

　　选用上述短语的适当形式填空。

　　1．It was when I got back to my apartment that I first came across my new neighbors.

　　2．I could hear voices in the distance．

　　3．All of a sudden，the bedroom window flew open.

　　4．Hold on to the seat in front when we go round the corner.

　　5．You mustn't drink the milk which gives off a bad smell.

be＋adj.＋for→动词短语 v.＋adv.＋to(介)→动词短语