张道真《英语语法大全》第861节有很详细的说明和归纳，摘录如下：

有些单词或短语，若跟有不可数名词，则成为量词，因此是单数，如跟有可数名词，则成为数词，这时就成了复数：

There is enough water.

There are enough rooms.

More water is required.

More trucks are required.

Some coffee has been ordered.

Some apples have been stolen.

No milk was sold in this store.

No oranges were sweet in this season.

None of the money is wisely spent.

None of the houses are good to see.

Most of the milk was spilled out.

Most of the bananas were rotten.

A lot of money has been spent.

A lot of people have been invited.

Abundance of meat is consumed every day.

Abundance of watermelons are on sale.

Plenty of water is used in this city.

Plenty of pigs are killed every day.

Half of the liquor is alcohol.

Half of the inhabitants are workers.

Part of the money is spent on the movies.

Part of the books are damaged.

The rest of the cost was paid by him.

The rest of the children were still young.

Three fourths of the earth’s surface is covered by water.

Three fourths of the residents are Chinese.

The bulk of his property has been sold.

The bulk of the inhabitants are Indians.

A mass of snow lies before my door.

A mass of people are gathering on the square.

A large percentage of profit has come to nothing.

A large percentage of crimes are due to alcohol.

A large proportion of his income is spent on liquor.

A large proportion of the residents are Arabs.