functions :Explaining & Justifying

Examples

The
aim of these web pages is to help students do some research.

The
main reason behind the building of these web pages is to encourage students
to seek knowledge everywhere, the internet included, so as to widen their
scopes.

It
seems to me evident that technology has already affected our mode of life.

It
seems to me obvious that computers become a necessity in our modern life.

Taking
into consideration factors like unemployment and the fierce competition in
the labor market, then students are to seek knowledge everywhere, and should
not rely on school sources only. They aren't enough.

All
things considered, I think students have to do their best to use the internet
for their school projects.