课时1
课上典型例题：
单项填空
1．I wonder such a gentleman as he should________an error，though it is a simple and small one.
A．admit B．tolerate
C．commit D．ignore
2．There is no________in trying to talk him into joining us.He enjoys being alone.
A．doubt B．wonder C．hope D．point
3．We must draw our attention________the fact that the young look________upon the old nowadays.
A．to；up B．on；down
C．on；upon D．to；down
