Anna Douglas was 72 years old when she started writing her newspaper column. She had been a school teacher before she retired（退休），but she needed to keep 1 .She was even willing to work without pay. She then offered her 2 with a business that helped other businesses find jobs for old people. Every day she 3 other old folks like her. By talking with them，she 4 two things. Old people had abilities that were not 5 . But old people also had some 6 .She found a new purpose for herself then.
Through the years，she 7 to write stories about people for national magazines. There was now a new 8 ： Old people like herself. She began to write a newspaper column called“Sixty Plus”， which was about 9 old . She writes about the problems of old people，especially their problems with being 10 .
Anna Douglas uses her 11 ability to see the truth behind a problem. She understands 12 problems begin. For example，one of her 13 said that his grandchildren 14 the houses as soon as he came to visit. Mrs Douglas 15 some ways for him to understand his grandchildren.
“It's important to know 16 about your grandchildren's world，”says Mrs Douglas. “That means questioning and listening，and 17 is not what old people do best. Say good things to them and about them，”she continues. “Never try to 18 your grandchildren or other young people. Never 19 your opinion. Don't tell them what they should do. 20 ，they have been taught they should have respect for old people. The old should respect them as well. ”
1. A. free B. rich C. powerful D. busy
2. A. service B. money C. students D. books
3. A. observed B. met C. comforted D. answered
4. A. recognized B. followed C. enjoyed D. demanded
5. A. studied B. agreed C. gave D. used
6. A. mistakes B. problems C. questions D. characters
7. A. had B. ought C. was D. used
8. A. subject B. life C. way D. plan
9. A. getting B. respecting C. employing D. supporting
10. A. unknown B. refused C. misunderstood D. discouraged
11. A. thinking B. working C. writing D. leading
12. A. that B. when C. why D. whether
13. A. visitors B. readers C. listeners D. friends
14. A. got B. entered C. left D. passed
15. A. invented B. chose C. suggested D. imagined
16. A. everything B. something C. anything D. nothing
17. A. listening B. speaking C. pleasing D. advising
18. A. praise B. scold C. trouble D. encourage
19. A. speak out B. give up C. get back D. stick to
20. A. Commonly B. Surprisingly C. Happily D. Naturally
、一个
、一个
，还有一个显碱性、一个显酸性的官能团．将该物质在一定条件下水解，能得到两种α-取代羧酸，其中一种的结构简式为
．另一种水解产物结构简式为：______，2分子该有机物一定条件下失去2分子水可以生成含有6元环的化合物，对应反应方程式为：______．
与CH3OH在一定条件下生成的酯是一种有用的合成中间体，利用该酯可与一种醇X发生取代反应，生成一种新的酯（
）和CH3OH，则醇X的结构简式为______．
、一个
、一个
，还有一个显碱性、一个显酸性的官能团，可说明X为二肽，由X的分子式和水解产物可知另一水解产物应含有3个C原子，且含有氨基和羧基，应为CH3CH（NH2）COOH，2分子该有机物一定条件下失去2分子水可以生成含有6元环的化合物，对应反应方程式为
，
）和CH3OH，反应的方程式为
，可知X为（CH3）3COH，