题目内容：
Unit 4Most of us trade money for entertainment. Movies, concerts and shows are enjoyable but 11 .If you think that you can't have a good time without spending a lot of money, read on. A little resourcefulness and a few minutes of newspaper-scanning should give you some pleasant surprises.
People may be the most interesting show in a large city. 12 through busy streets and see what everybody else is doing. You will probably see people from all over the world; you will 13 see people of every age, size, and shape, and you'll get a free fashion show, too. Window-shopping is also a 14 sport if the stores are closed.
Check the listings in your neighborhood paper. Local colleges or schools often 15 the public to hear an interesting speaker or a good 16 . The film or concert series at the local public library probably won't cost you a penny. Be sure to check commercial advertisements too. A flea market can provide hours of pleasant looking round. Perhaps you can find a free cooking or crafts 17 in a department store.
Plan ahead for some activities. It is always more pleasant not to have people in front of you in a museum or at a zoo. You may save some money, too, since these places often 18 aside one or two free 19 days at slow times during the week. Make sure that you are including the indispensable 20 that people travel miles to see. If you feel like taking an interesting walk, find a free walking tour, or plan one yourself.
| A. expensive | B. | Wonder | C. debate | D. | admission |
| E. set | F. | Wander | G. safe | H. | addition |
| I. valuable | J. | dispute | K. welcome | L. | confidently |
| M. sights | N. | demonstration | O. certainly |
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