第24题:
问答题
Practice 1 Once again, science supports what your grandmother told you: A good night’s sleep helps your body fight a cold. People who (1)______ fewer than seven hours of sleep per night in the weeks before being (2)______ to the cold virus were nearly three times as likely to get sick as those who averaged eight hours or more, a new study found. Researchers used frequent telephone (3)______ to track the sleep habits of more than 150 men and women aged 21 to 55 over the course of a few weeks. Then they exposed the (4)______ to the virus, quarantined (隔离) them for five days and kept track of who got sick. (5)______ sleeping more, sleeping better also seemed to help the body fight illness: Patients who fared better on a measure known as “sleep efficiency”—the percentage of time in bed that you’re (6)______ sleeping—were also less likely to get sick. The results held true even after researchers adjusted for (7)______ such as body-mass index, age, sex, smoking and pre-existing antibodies to the virus. Like your grandmother, the researchers aren’t exactly sure why sleeping better makes you less likely to develop a cold. But they do take a stab at the answer: “Sleep (8)______ influences the regulation of proinflammatory cytokines, histamines, and other symptom mediators that are released in (9)______ to infection.” In plain English, maybe tossing and turning when you’re infected with the cold virus (10)______ to the symptoms that define a cold.[A] subjects [B] disruption [C] exposed[D] contributes [E]interviews [F] Despite[G] actually [H] properties [I]response[J]variables [K]action [L]averaged[M]Besides [N]partially [O]disturbance
正确答案:
1.L 考 点:动词。分析句子结构可知定语从句缺少谓语成分,故此处需填一动词。此处表达了试验的结果,因此要用一般过去时。原句意为“______每晚少于七小时睡眠的人”,结合选项,可与数字搭配的动词只能是average,意为“平均为”, 故选项L正确。
2.C 考 点:动词。空格前为being,空格处应填形容词或动词过去分词。空格所在句的意思为“每晚平均睡眠少于7小时的人比那些平均睡眠8小时以上的人在______流感病毒时更容易感冒”,be exposed to意为“接触,面对”,符合题意。 故选项C最符合题意。
3.E 考 点:名词。由句子结构可知,空处应填名词,与telephone构成搭配。interviews telephone为固定搭配,意为“电话采访”, 故选项E正确。
4.A 考 点:名词。空格前为定冠词the,故空格处要填名词。这句话的意思为“他们(科学家)让______接触到病毒,对他们实行隔离……”,结合选项,只有subject,意为“接受试验者,实验对象”,符合题意,故选项A正确。
5.M 考 点:介词。这句话的意思为“______睡得多,睡得好也对预防疾病有所帮助”,很明显空处要填“除了……之外(还)”。despite意为“不管,不顾”,故可排除。besides意为“除……以外”, 故选项M正确。
6.G 考 点:副词。由句子结构可知,空格处应填副词。这句话的意思为“睡眠效率是指______睡眠时间占总躺床时间的百分比”,故可推知,空处应填“真正地,事实地”, 故选项G正确。
7.J 考 点:名词。分析句子结构可知空格处词性与such as 后边的内容相同。故此处需填一名词。由于such as 后边的 “body-mass index,age,sex,smoking and pre-existing antibodies to the virus”都是“变量”, variables意为“变数,变量” 故选项J正确。
8.O 考 点:名词。由句子结构可知,空处与sleep搭配充当句子的主语。由选项可知,disturbance sleep可构成搭配,意为“睡眠紊乱”, 故选项O正确。
9.I 考 点:固定搭配。由句子结构可知,此处构成了in…to短语,结合选项,只有in response to意为“对……的反应”,符合题意,故选项I正确。
10.D 考 点:动词。 由句子结构可知,主句缺少谓语,tossing and turning为句子的主语,故空格处应填动词第三人称单数。原句意为“简单地说,当你感染了病毒辗转反侧难以入眠______感冒的症状”,空处应填“促成了”,contribute to意为“是……的原因之一”。 故选项D正确。
解析:
暂无解析