重点讲解：
1. tend to do sth. 往往会；经常就；
In our culture we tend to be bashful about our talents and skills.
在我们的文化中，我们往往羞于谈论自己的才干和技能#[Ni2.WX_.xY+(8Wg.gK。
2. be faced with 面临；面对；
He was faced with a barrage of angry questions from the floor.
他受到了与会者一连串愤怒的质询4*z;D4r%WoOM_。
3. be competent to do sth. 有…能力的；能干的；
Make sure the firm is competent to carry out the work.
要确保这家公司有能力完成这项工作O_Ir%HZIAOQd%Quv=xi。
4. add to 添加；增加；掺加；
A glass or two of wine will not significantly add to the calorie count.
喝一两杯葡萄酒不会增加多少热量uWyWHa2bX-,s&G。