Question

With more forests being destroyed，huge quantities of good earth _____ each year．

A．is washing away        B．is being washed away

C．are washing away      D．are being washed away

Answer

D

【解析】

试题分析：此题考查了两个知识点。其一是主谓一致：根据quantity的用法，quantities of和a quantity of后面都可加不可数名词与可数名词复数，但它们作主语时，quantities of...后面的谓语动词用复数，而a quantity of...的谓语动词用单数，故排除A、D项；其二考查了语态，土壤是被冲走的，故这里应该用被动语态，正确答案是D项。

【名师点拨】

quantities of和a quantity of后面加可数名词复数，做主语时后面的谓语动词用复数形式；quantities of后面加不可数名词，做主语时后面的谓语动词用复数形式；a quantity of后面加不可数名词，做主语时后面的谓语动词用单数形式。1.Large quantities of money have been sent there大量的钱已经被送到那里；A large quantity of money has been wasted.大量的钱已经被浪费；2.A large quantity of books have been offered to us.大量的书已经提供给我们； Quantities of nuts are on the table.大量的坚果在桌子上。

考点：考查主谓一致和语态