1. Some of +名詞
當(dāng)主語是“all of/ some of/ none of/ half of/ most of +名詞”時(shí),謂語由名詞決定。
Most of the money is given by my mother. 大部分錢是媽媽給的。
Most of the students in this class are boys. 這個(gè)班大多數(shù)學(xué)生是男孩。
2. Plenty of +名詞
當(dāng)主語是“lots of/ plenty of/ loads of +名詞”時(shí),謂語由名詞決定。
Lots of food here is delicious. 這兒很多事物都很好吃。
Lots of people here like dancing. 這兒很多人都喜歡跳舞。
3. A portion of +名詞
當(dāng)主語是“a portion of/ a series of / a pile of +名詞”時(shí),謂語用單數(shù)。
A large portion of the students is from China. 這兒學(xué)生中很大一部分都來自中國。
A large portion of the report is missing. 這份報(bào)告很大一部分都丟失了。
4. A kind of +名詞
當(dāng)主語是“a kind of/ a type of / a sort of +名詞”,由于名詞只能是可數(shù)名詞單數(shù)和不可數(shù)名詞,所以謂語為單數(shù)。
There is a kind of rose on the table, which is very expensive.
桌上放著一種玫瑰,價(jià)格昂貴。
5. Many a +名詞
當(dāng)主語是“many a+名詞”和“more than one+名詞”,謂語用單數(shù)。
Many a girl has toys. 很多女孩都有玩具。
There is more than one map on the wall. 墻上有很多地圖。
因此,當(dāng)主語是表示不確定數(shù)量的名詞時(shí),謂語動(dòng)詞到底是單還是復(fù),可依據(jù)以上規(guī)則,一一對(duì)號(hào)入座。