小题1:B
小题2:D
小题3:A
小题4:B
小题5:D
小题1:细节理解题，根据文中语句“If you want to deal with the association(交往) between boys and girls properly, here are some ‘dos and don’ts’ for you to follow.”理解可知。
小题2:细节理解题，根据文中语句“We should get along with the other sex in public instead of in secret.”理解可知。
小题3:细节理解题，根据文中语句“If you are a shy person, you can also find a way out. First of all, you can make friends with the students who have the same interest and hobby as you.”理解可知。
小题4:词义理解推断题，根据文中语句“Don’t fall into the ditch of early love. Boys and girls in adolescence (青春期) are rich in feelings. They are easy to regard the friendship as a sign of love and fall in love with each other at an early age.”理解可知。
小题5:细节理解题，根据文中语句“Don’t fall into the ditch of early love. Boys and girls in adolescence (青春期) are rich in feelings. They are easy to regard the friendship as a sign of love and fall in love with each other at an early age.”理解可知。