12-13学年度S1第44期7版测试答案与解析
D1 1. located 2. characteristics 3. found 4. limit 5. helpful 6. stories 7. abroad 8. program 9. Comment/ Conclusion 10. thankful
D2 CDAC
D3 DABD
D4 DAC
D5 BADB
D2:
1. C。从Americans ages 18-29 send and receive an average of nearly 88 text messages per day, compared to 17 phone calls. The telephone call is a dying institution可以看出，年轻人更多地发短信而非打电话。
2. D。文中第三段说到text messages make things easier，比如不用假装很高兴地祝福别人生日快乐。
3. A。从texting might also harm young people’s still-developing interpersonal skills可知A正确。文中说having a conversation with another person teaches kids to have a conversation with themselves -- to think, reason and self-reflect，而发短信恰恰相反，使人不能think, reason and self-reflect。
4. C。文中建议的是you’re actually seeing and interacting with another person，C正确，而不是说不要用短信或者是多打电话。
D3
1. D。本文的中心句是第二段的最后一句话“But how exactly does chewing gum freshen one’s breath?”下文主要围绕这一句话展开，此外，最后两段还提到了嚼口香糖对健康的影响，故选D。
2. A。根据上一句可知，唾液能够杀死口里的细菌，而晚上睡着了以后，人们口里唾沫分泌减少，那么细菌就会_____。结合下文“Chewing gum stimulates the mouth to produce more saliva, which helps control the number of bacteria inside.”可推知，唾沫有助于控制细菌的数量，当其数量减少时，细菌的数目相应应该就会增多，故选A。
3. B。由第六段首句“Chewing gum stimulates the mouth to produce more saliva, which helps control the number of bacteria inside.”可推知A错误，又由“chewing gum can temporarily reduce the bad-smelling chemicals by more than 70 percent”以及第七段提到的口香糖里的一些特殊成分“are better at killing bacteria”可以推知B正确。C无中生有，D错在选项里的simply。
4. D。由最后一段可以推知D正确。文中没有比较口香糖与唾沫杀菌能力的高低，故A不对；由最后一段的最后一句话可知B不对；C属于无中生有。
D4:
1. D。从For me, it was normal和And I enjoyed connecting with him可知，作者喜欢这样的见面方式。
2. A。从He wrote me every week可知A正确。B是别人的父亲做得到的事，作者的父亲不能够，C是作者为父亲做的事，D文中没有提到，也是作者的父亲无法做到的事。
3. C。全文讲述了作者的父亲虽然曾被关在监狱里，后来才被释放，但他们深爱彼此，相处融洽。
