Question

【题目】根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

The main cause of death and disability in the US

Stroke (中风) is the main cause of death and disability in the United States. Every 45 seconds, someone in America has a stroke. 【1】 It is the nation's third leading cause of death, ranking behind diseases of the heart and all forms of cancer. The following is something more about stroke.

Definition and description of a stroke

Stroke is a type of cardiovascular disease. It affects the arteries(动脉) leading to and within the brain. A stroke occurs when a blood vessel（血管） that carries oxygen and nutrients to the brain is either blocked by a clot or bursts. 【2】 So stroke forms.

【3】

The American Stroke Association has identified several factors (因素) that increase the risk of stroke. The more risk factors a person has, the greater the chance that he or she will have a stroke. Some of these you can't control, such as increasing age, family health history, race, and previous stroke. 【4】 Factors resulting from lifestyle or environment can be improved with a healthcare provider's help.

Breakthroughs in treatment

【5】 In fact, about 600,000 people have strokes every year. For many years, there was no hope for those suffering a stroke. However, recent breakthroughs have led to new treatments. For the treatments to work, the person must get to a hospital immediately.

A. Risk factors of a stroke.

B .Warning signs of a stroke.

C. Every 3.1 minutes, someone dies of one.

D. A stroke can happen to anyone at any moment.

E. But you can change or treat other risk factors to lower your risk.

F. When that happens, part of the brain cannot get the blood and oxygen it needs.

G .The more common kind of stroke is caused by a blood clot that blocks a blood vessel in the brain.

Answer 1

【答案】

【1】C

【2】F

【3】A

【4】E

【5】D

【解析】

试题分析：在美国，中风是导致死亡和残疾的主要原因。本文详细介绍了中风这一疾病，并介绍了治疗的突破点。

【1】C 前一句有Every 45 seconds，正好对应C项Every 3.1 minutes，后一句It is the nation's third leading cause of death里面说到了死亡，正好对应C项someone dies of one，因此答案选C。

【2】F 前一句话A stroke occurs when a blood vessel(血管) that carries oxygen and nutrients to the brain is either blocked by a clot or bursts. (当一个血管输送氧气和营养物质的血管被血栓或破裂阻塞时，中风发生了。)，因此当这种情形发生的时候，部分大脑得不到它所需的血液和氧气，然后中风就形成了。故此题答案为F。

【3】A 此空属于段落标题题，其所在的这一段主要是在说中风风险的一些因素。因此答案为A。

【4】E 根据前一句Some of these you can't control, such as increasing age, family health history, race, and previous stroke.说有些因素你无法改变，那肯定后面是可以改变的因素，因此正好对应选项E，而且有一个很重要的关键词But，正好前后转折关系。故答案为E。

【5】D 后一句about 600,000 people have strokes every year，说明数字的庞大，用排除法查看剩下的选项，就不难选出选项D了，故答案为D。