Christmas in 2012..."可知本文是在2015年写的。故答案为D。

22．The author first discovered the effects of music .

A．from his parents B．by chance

C．at work D．when he was a child

答案　B

解析　推理判断题。根据第二段叙述的内容可知作者在玩视频游戏时发现音乐的效果，由此推知答案为B。

23．The author mentions the experience of collecting bottle openers in Paragraph 3 to .

A．tell us that life is dull

B．prove that music affects mood

C．tell us how to seek happiness

D．tell us bad mood can affect work

答案　B

解析　细节理解题。根据第三段第一句"Music can also have a great effect on mood, if I'm in a bad mood at work..."可知该段主要讲音乐对情绪的影响，所举例子也是为了说明这一点。

24．In order to get the greatest effect of music, you are advised to .

A．listen to some of Bob Marley's

B．only choose relaxing music

C．test all kinds of music

D．listen to classic rock

答案　C

解析　细节理解题。根据文章最后一段最后一句"I'm always looking for new concentration aids, so I'd love to know what type of music works best for me."可知作者要测试各种各样的音乐所带来的影响。

Tony Bennett，the American singer recently touring Britain，can't remember how many times he has sung his standard hit "I Left My Heart in San Francisco"．He sang it again to his audience at the London Palladium last night.

"I never get tired of singing it，" he said，"I like it very much.It's a great city and it's a good song." Bennett is to record a TV special with American singer Lena Home while he is here.And a new LP recorded by him in London for Philips titled "Listen Easy" will be published in June."I like it here，" he added quietly over whiskey."I would like to live here so many months of the