7.On the surface of the water ________, which spoiled the beautiful scenery of the park.
A. some dead leaves did float B. some dead leaves floated
C. floated some dead leaves D. did some dead leaves float
【答案】C
【解析】
【详解】考查倒装句。句意：水面上漂浮着一些枯叶，破坏了公园的美丽景色。当表示地点状语的介词短语放在句首的时候，如果主语是名词时，则需要使用全部倒装。故选C。
8.________ the students from their endless homework the school has decided to take a series of measures.
A. Freed B. To free
C. Freeing D. Having freed
【答案】B
【解析】
【详解】考查非谓语动词。句意：为了把学生从没完没了的作业中解放出来，学校决定采取一系列措施。本句已经存在谓语动词且句中没有连词，故free只能做非谓语动词，在本句中做目的状语故用不定式，选B。
