20. C。这里是说：好教师、录音磁带、书和词典将对学习英语有帮助。但这些都不能代替学生的学习。

(二)

　(1)

Entering the drama room I am immediately surrounded by the familiar sights, smells and sounds. Streaks(条纹，线条) of light cast by the blinds of the tall ___1___ send shafts(杆状物) of light through the dusty air. I take a ___2___ and the concrete and paint ___3___ tickle my nose. I ___4___ everything about this room.

Some of the ___5___ times of my life have been spent here. It’s ironic(讽刺的), but the ___6___ is the only place where I feel that I don’t have to ___7___ to be someone I’m not. Like many teenagers, I almost ___8___ think that people are judging me, but when I act, that feeling disappears.　 People only look at your ___9___ ability, not your clothing, money, choice of friends, or any of the other ways people are usually ___10___.

When I’m on stage, everything else vanishes(消失). All the worries and　 ___11___ of the outside world are put on hold. Nervousness is still present, ___12___ it’s the excited and tingly kind, not the queasy(不稳定的) ___13___ of being different and alone.

I ___14___ love to work backstage and on lighting. I ___15___ you could find another girl who would work on a ladder ___16___ her elbows in cables and dust and love every second of it. It makes me unique and gives me a sense of ___17___ to know that I succeed in an area where ___18___ others-and virtually(事实上) no girls-do.

High school is a difficult atmosphere, to put it ___19___. Like others, I’m often insecure(不安的), not ___20___ who I am or where I’m going in life. Wherever that may be, I will always have the confidence I get from theater.