hopeless adj.没有希望的

careless adj.粗心的

useless adj.无用的 argue v．争论，辩论

quarrel v．吵架；争论

debate v．辩论；争论 　　Ⅲ.补全短语

　　根据提示补全下列短语。

　　1．be covered with　 被......覆盖

　　2．at a loss 不知所措

　　3．be home to 是......栖息地，是......的家园

　　4．in harmony with 与......相和谐

　　5．make use of 利用

　　6．tower over 远高于(周围的人和物)

　　7．be tired of 厌烦了......

　　8．provide sb.with sth. 为某人提供某物

　　9．be buried in 埋头于，专心致志于......

　　10．come into view 映入眼帘

　　Ⅳ.选词填空

　　选用上述短语的适当形式填空。

　　1．The peace­loving organization suggests that we protect the earth and live in perfect harmony with nature.

　　2．The mountain tops are covered with snow，which is very beautiful.

　　3．They were at a loss as to how to meet the unexpected situation.

　　4．The earth is home to our human beings and we should protect it.

　　5．We should make full use of our time to learn English well.

come＋prep./adv.→动词短语 表示"专心于......"短语