单选题
下面的短文有15处空白,请根据短文的内容为每处空白处确定一个最佳选项。
Happy Marriage, Happy Heart

Happily married people have lower blood pressure {{U}}(51) {{/U}}unhappily married people or singles, a Brigham Young University study says.
On the other hand, even having a supportive social network did not translate into a blood pres sure benefit for singles or unhappily {{U}}(52) {{/U}} people, according to the study.
"There seem to be some unique health benefits from marriage. It's not just being married {{U}}(53) {{/U}} benefits health-what's really the most protective of health is having a happy {{U}}(54) {{/U}}" study author Julianne Hoh-Lunstad, a psychologist who specializes in relationships and health, said in a prepared statement.
The study included 204 married and 99 {{U}}(55) {{/U}} adults who wore portable blood-pressure monitors for 24 hours. The {{U}}(56) {{/U}} recorded blood pressure at random intervals and provided a total of about 72 readings.
"We wanted to capture participants' blood pressure doing whatever they normally {{U}}(57) {{/U}} in everyday life. Getting one or two readings in a clinic is not really {{U}}(58) {{/U}} of the fluctuations that occur throughout the day," Hoh-Lunstad said.
Overall, happily married people scored four points {{U}}(59) {{/U}} on the blood pressure readings than single adults. The study also found that blood {{U}}(60) {{/U}} among married people--especially those in happy marriages--{{U}} (61) {{/U}}more during sleep than in single people.
"Research has shown that people whose blood pressure remains high throughout the night are at {{U}}(62) {{/U}} greater risk of heart disease than people whose blood pressure drops. " Hoh-Lunstad said.
The study was published in the March 20 {{U}}(63) {{/U}} of the journal Annals of Behavioral Medicine.
The study also found that unhappily married adults have higher blood pressure than {{U}}(64) {{/U}} happily married and single adults.
Hoh-Lunstad noted that married couples can encourage healthy habits in one {{U}}(65) {{/U}} such as eating a healthy diet and having regular doctor visits. People in happy marriages also have a source of emotional support, she said.
【正确答案】 C
【答案解析】[解析] 本句用了表示比较的lower,因此空格处只能选than。
【正确答案】 A
【答案解析】[解析] 上一句中已经出现了unhappily married people,所以在unhappily和people之间显然应选married。
【正确答案】 B
【答案解析】[解析] 本句是一个强调句型结构It's…that…。
【正确答案】 B
【答案解析】[解析] 从前面出现过的happily married people可以得知,对健康最具保护作用的是拥有一个happy marriage。
【正确答案】 C
【答案解析】[解析] 从上下文可以得知,研究对象包括已婚和未婚的成年人。
【正确答案】 A
【答案解析】[解析] 前一句中出现了monitors,此处仍指monitors。
【正确答案】 B
【答案解析】[解析] 空格处应填与前面出现的doing相一致的动词do,以表示日常生活中通常所做的事情。
【正确答案】 C
【答案解析】[解析] 本句的意思是:在诊室里获取一两个读数并不能真正代表一天之内发生的波动。representative的意思是代表。
【正确答案】 B
【答案解析】[解析] 从上下文可以得知,总体来说,婚姻幸福的人血压应相对低些。
【正确答案】 A
【答案解析】[解析] 该段的主要内容是婚姻与血压的关系,显然此处应填pressure。
【正确答案】 B
【答案解析】[解析] 从上下文可以得知,与单身的成年人相比,已婚者,尤其是婚姻幸福者的血压夜里睡眠时应该是下降得更多。
【正确答案】 C
【答案解析】[解析] 修饰比较级,表示“……得多”,应该用much。
【正确答案】 D
【答案解析】[解析] 表示定期出版的杂志的第几期,应用issue。
【正确答案】 B
【答案解析】[解析] 此句将婚姻不幸福者与婚姻幸福者和单身成年人做比较。
【正确答案】 A
【答案解析】[解析] one another表示“相互”的意思。