第一节完形填空（共10小题；每小题2分，满分20分）
阅读下面短文，掌握其大意，然后从21～30各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
I have experienced many different types of teachers and from each of them. I have drawn out characteristics to form the __21__ teacher. The person has no age or sex requirements __22__ this person must be pleasant to look at. I don’t believe teachers have to be beautiful but they have to keep __23__ well groomed. I have had a teacher who didn’t keep herself well groomed; the other students and I found her __24__ quite distracting. I believe that a teacher should wear the clothes he or she likes, but not things that are shocking or totally __25__. I find that students spend more time __26__ than they do listening.
This person should know his or her __27__ in detail. He or she must also possess a certain __28__ for it to get the students enthusiastic. He or she must be able to make lessons __29__ and pick out little details that relate it to the students. A teacher who just relays facts __30__ to be boring . A student can pick out facts from a textbook; it is the teacher who is to tie the subject together in an interesting fashion.
21. A. real B. beautiful C. ideal D. pleasant
22. A. but B. because C. since D. although
23. A students B. colleagues C. principals D. themselves
24. A. method B. appearance C. speech D. manner
25. A. strange B. new C. expensive D. cheap
26. A. playing B. writing C. copying D. staring
27. A. students B. time C. subject D. character
28. A. idea B. attitude C. love D. question
29. A. serious B. humorous C. intensive D. funny
30. A. tends B. fails C. avoids D. pretends