什么是主谓一致？

主谓一致就是当主语为单数第三人称时，谓语动词应该变成其相应的单三形式。

主谓一致的不同形式

1主语为动名词
Scoring high on tests mirrors students' long-term commitments.

2主语为不定式
To eat apples is a good habit.

3主语从句充当主语
Who gives me help when I'm in need is my best friend.

4主语为不可数名词
Knowledge is power.

5主语为可数名词的单数形式
Every boy and every girl wishes to attend the evening party.

6非限定性定语从句，which替代前面一句话
1.International tourism could promote economic development, which is obvious.
2,Parents should set a favorable example for the children to save energy, which makes the world more eco-friendly.