An ecosystem consists of the living and nonliving things in an area ________ interact with one another.

A．that              B．where            C．who              D．what

 

【答案】

A

【解析】該句句意為一個(gè)生態(tài)系統(tǒng)由一個(gè)區(qū)域內(nèi)的可以相互作用的生物和非生物成的。根據(jù)句意可知，________ interact with one another是定語從句，修飾先行詞the living and nonliving things，故排除What,what不能用于定語從句。在該定語從句中，interact 缺少主語，因此排除B項(xiàng)。That 既可以代指人，也可以代指物，who只能代指人，根據(jù)中的先行詞是the living and nonliving things 是既有人又有物，因此只能選擇A項(xiàng)。

【考點(diǎn)定位】考察定語從句關(guān)系詞的選擇。

 

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