语法一致原则

一. 谓语动词要用单数形式 主语是: 1.单数名词或不可数名词 The food they served ______ (be) delicious. 2.动名词, 不定式或从句 Skating in winter _______ (be) great fun. To see _______(be) to believe. That he is absent _______(worry) all his family. Reading books and watching TV (be) my hobbies. 3. a large quantity（amount) of +名词 A large amount of water _____ what I need now.

is

is

is

worries

is

多个动名词和不定式做主语，谓语动词用复数

are