当large/small amounts 修饰主语时,谓语要与amount的形式一致.
a large(great,good)amount of +不可数名词,谓语动词一般用单数;
huge,great,goodamounts of + 不可数名词,作主语时,谓语动词要用复数。
A large amount of damage has beend one by the earth quake.
Large amounts of money were spent on the bridge.