总第600期高一7版测试答案与解析
D1 1-3 DAD
D2 1-4 CDCB
D3 1-3 DDC
D4 1-5 DFCBA
D5 1-5 AACDB
6. carrying 7. our 8. to tour 9. which 10. to
11. biggest 12. widely 13. that 14. were built 15. traditional
D1:
1. D。全文主要介绍了家长和学生对橄榄球运动损伤的忧虑以及由此产生的对这项运动的影响：很多人退出这项运动。
2. A。作者在最后一段“Is it too little too late? And if things don’t turn around, is the US’ most popular sport in trouble?”表示对这项运动前途的担忧。
3. D。从“These reports have affected the young people playing the game”，“keep their children away from football”和“Some players are making this decision for themselves … quitting football for good”可知D正确。
D2:
1. C。第二段段尾提到，随着地球自转速度的减慢，为了跟天文测量得出的时间保持一致，原子钟需要加上一秒钟。
2. D。根据第三、四段，2012年增加闰秒的时候，Reddit这个网站崩溃了，原因是其中的Linux系统发现了闰秒，但是无法对此做出反应。
3. C。根据第五段的“As company engineer Christopher Pascoe explains in a blog post, companies usually try to fix the problem by turning back the clocks by one second at the end of the day so that they play that second again.”可以得此答案。
4. B。倒数第二段提到针对“闰秒”问题，Google的做法是，采取“闰秒弥补（leap smear）”技术，即在当天每次增加几毫秒，最终增加到1秒钟。Pascoe的评论中用到了“Our clocks have already taken this into account …”，这时他的语气是赞同的。
D3:
1. D。根据第一段可以得此答案，每次作者刚有灵感有写点东西，就能听到这个女孩唱歌，而且她还经常跑调。
2. D。根据文中的“From that day on, I no longer thought the girl was doing anything wrong, and even got used to her singing. I felt it was like sniffing the smell of sunbeams and watching the flowers and plants”可以得此答案。
3. C。根据最后三段尤其是倒数第三段的“Sitting at home, I couldn’t help feeling something wanting. I suddenly realized that I could no longer hear the girl next door sing”可以得此答案。
