Researchers conducting a study of hospital stays for over two hundred and eighty six thous

Researchers conducting a study of hospital stays for over two hundred and eighty six thousand older folks found something interesting in their data.
The number of hospitalizations for heart disease and stroke went down significantly among a certain group of people at a certain time of year. What folks, and what time of year, you ask? Flu season and the lucky people were the ones who got flu shots(流感疫苗).
It’s generally recommended that people over fifty get their flu shots every year. Influenza(流行性感冒) is no small thing. it’s responsible for around thirty six thousand deaths a year in the U. S. alone. Getting the shots also cuts down on the chances of get­ting pneumonia(肺炎), which is especially dangerous in seniors.
But what wasn’t known was that there seems to be an added benefit to getting a flu shots in terms of warding off heart problems. The data,in fact, are quite strong in suggesting this is the case.
In this study, flu shots cut clown the number of hospitalizations for heart disease by nineteen percent. Stroke went down sixteen percent one season and a whopping twenty-three percent a second season.These are big results.
So what's the connection between getting a flu shot and having a stronger heart? It isn’t yet known.
Researchers speculate that the flu virus itself may do damage to blood vessels(血管), possibly making clots(血块)more likely. Blood clots in the heart can cause heart attacks, and blood clots in the brain can cause strokes.
Whatever the specific details are, there's one more good reason to follow your doctor’ s advice and get that annual flu shot.
【小题1】According to the study, the number of hospitalizations for heart disease and stroke went down significanntly among the ones who .A．got flu shots after they were illB．got flu shots before they were illC．got flu shots at the flu seasonD．got flu shots whenever convenient【小题2】The benefits of getting flu shots can be listed except that .A．it can cut down on the chances of getting pneumoniaB．it can cut down the number of hospitalizations for heart diseaseC．it can kill the flu virusD．if can make blood clots【小题3】The underlined phrase warding off probably means .A．keeping awayB．dealing withC．setting offD． picking up【小题4】According to the passage, we'd better .A．work out to fight against influenzaB．get flu shot every yearC．follow our doctor's all adviceD．protect our blood vesselsC

(答案→)C 解析：一定恨透了流感吧？头疼脑热，四肢无力，涕泪四流……但你是否知道偶尔患患流感能降低罹患心脏病与中风的危险呢？让我们一起来听听研究人员的新发现吧。。【小题1】细节理解题。由“Flu season and the lucky people were the ones who got flu shots(流感疫苗).”可知接种了流感疫苗的人患心脏病和中风更少些 。故选C。【小题2】细节理解题。由“Researchers speculate that the flu virus itself may do damage to blood vessels(血管), possibly making clots(血块)more likely. ”可知血液会更快速的凝结成块，这会在心脏里堆积导致心脏病 。故选D。【小题3】词义猜测题。从上下文可知流感疫苗有某种好处，所以推断是“避免”心脏病 。keeping away 远离；dealing with处理；setting off使爆炸；picking up捡起。故选A。【小题4】细节理解题。由“Whatever the specific details are, there's one more good reason to follow your doctor’ s advice and get that annual flu shot.”可知每年接种流感疫苗更安全些 。故选B。

这个问题我还想问问老师呢