（1）be （2） as well as
全文：Teaching is supposed to be a professional activity requiring long and
complicated training as well as official certification.The act of teaching is
looked upon as a flow of knowledge from a higher source to an empty
container.The student's role is one of receiving information; the teacher's role
is one of sending it.
There is a clear distinction assumed between one
who is supposed to know and another ,usually younger person who is supposed not
to know .However ,teaching need not be the province of a special group of
people nor need it be looked upon as a technical skill.Teaching can be more
like guiding and assisting than forcing information into a supposedly empty
head.If you have a certain skill you should be able to share it with someone .
You do not have to get certified to convey what you know to someone else or to
help them in their attempt to teach themselves.All of us ,from the very
youngest children to the oldest members of our culture should come to realize
our own potential as teachers .We can share what we know,however little it
might be ,with someone who has need of that knowledge or skill.