The pictures tell us about v_________ work.

The pictures tell us that we should do some voluntary work.

It’s our social responsibility.

That we should do some voluntary work.

“It” refers to…?

Replace “it “!

That we should do some voluntary work is our social responsibility.

宾语

宾语从句

充当主语 subject

主语从句

Develop it

It’s our social responsibility that we should do some voluntary work .

形式主语

Our social responsibility is _____ we should do some voluntary work.

Our social responsibility ______ we should do some voluntary work is necessary.

that

that

表语从句

同位语从句

oluntary

名词性从句 Noun clause