Cattlearegrazingonthepasture.
Thepolicearelookingforhim.
有些集体名词有时作单数看待,有时作复数看待,主要根据意思来决定.
Hisfamilyareallmusiclovers.
Thecommitteemeetstwiceamonth.
Thecommitteearedividedinopinion.
Theaudienceweregreatlymovedatthewords.
Thisnewseriesisbeginningnextmonth.
Thesenewseriesarebeginningnextmonth.
Thesespeciesarenowextinct.
表示时间,重量,长度,价值等的名词,尽管仍是复数形式,如果作整体看待,动词也可用单数形式(当然用复数动词也是可以的):
Threeweekswasallowedformakingthenecessarypreparations.
Onehundredliwascoveredinasinglenight.
TalesfromShakespeareisabookbyCharlesLamb.
学科名,如mathematics,economics用单数.