If there is a role for government, it should really be getting involved in providing common goods 一 making sure there is space for playing fields and the money to pave tennis and netball courts, and encouraging the provision of all these activities in schools.(2017英语二 Text1)
【主干】
①主句
If there is a role for government, it should really be getting involved in providing common goods
②同位语从句(解释说明common goods)
一 making sure there is space for playing fields and the money to pave tennis and netball courts, and encouraging the provision of all these activities in schools.
一、【主句】
If there is a role for government, it should really be getting involved in providing common goods
①主干：主语it;谓语should be getting involved in;宾语providing common goods
②修饰：状语(副词)really修饰谓语动词;
条件状语从句If there is a role for government
→引导词if;there be句型;状语for government修饰句子
二、【修饰】
同位语(解释说明common goods)(v.ing短语形式)
一 making sure there is space for playing fields and the money to pave tennis and netball courts, and encouraging the provision of all these activities in schools.
【主干】
v.ing短语并列，引导同位语
①making sure ②and encouraging
2个动词分别引导2个宾语从句
①making sure引导宾语从句
there is space for playing fields and the money to pave tennis and netball courts,
there be句型。
主要名词有3个：①space for playing fields(介词短语作定语) ②the money to pave tennis(介词短语作定语) ③netball courts
②encouraging引导宾语
the provision of all these activities in schools.
宾语the provision;定语of all these activities(修饰provision);定语in schools(修饰activities)
