Question

    If your fingers get chilly all year round—even in the peak of summer—you’re not alone. Many people get cold hands during all of the seasons, due to a number of causes, from genetic to chronic illnesses.

Common reasons include being elderly and thin. If your hands are regularly cold or numb, however, it’s a good idea to see a doctor to rule out more serious causes. Cold hands are one of the symptoms of both anemia (贫血症) and hypothyroidism (甲状腺机能减退). Diabetes, which reduces blood circulation, can also trigger it. And if your heart is weak from heart disease, your body may prioritize sending blood to your core over your limbs.

For many others, cold hands are a sign they have a largely harmless condition called Raynaud’s disease. When any of us goes out in the cold, our bodies activate the muscles in our smallest blood vessels to make them even smaller—a survival mechanism to keep blood, and thus warmer temperatures, in our core. For people with Raynaud’s, this reaction is too strong, and instead of just a bit less blood going to their fingers, far too little gets there.

Raynaud’s is more common in women, and it most often develops before the age of 30. In fact, if you develop Raynaud’s when you’re older—usually after 40—it can be a sign of another underlying issue. That could be a smaller problem—a previous incident of frostbite (冻伤) or a sign of a more serious autoimmune condition, like lupus (狼疮).

For the majority of people living with Raynaud’s, medication won’t be necessary. However, a rare, more severe form of Raynaud’s affects less than one in 1,000 people. In these cases, blood can become completely blocked, causing sores on the hands. If they go untreated, it can lead to gangrene (坏疽) and, very rarely, amputation (截肢).

1.What’s the purpose of paragraph 1?

A.introduce a topic B.present an argument

C.describe the characters D.clarify his writing purpose

2.According to the text, which of the following is not the cause of cold hands?

A.diabetes B.heart disease C.aging D.obesity

3.What do we know about Raynaud’s disease?

A.It appears when blood vessels in your body overreact to high temperatures.

B.Males never suffer from it before the age of 30.

C.In some cases, it can be a sign of some health issues.

D.For most people, it is a serious health problem.

4.What will the author talk about in the following paragraph?

A.The reasons why people have cold hands

B.Ways to treat Raynaud’s disease and prevent cold hands

C.Medical research on Raynaud’s Disease

D.Disadvantages of cold hands

Answer

1.A

2.D

3.C

4.B

【解析】

这是一篇说明文。文章讲述了，如果你的手指一年四季都在发冷，可能是得了雷诺氏病，解释了它的原因、症状、发病群体。

1.

推理判断题。由第一段“If your fingers get chilly all year round—even in the peak of summer—you’re not alone. Many people get cold hands during all of the seasons, due to a number of causes, from genetic to chronic illnesses.”（如果你的手指一年四季都在发冷，即使是在盛夏时节，你也不孤单。许多人在整个季节都会手感冰冷，原因有很多，从遗传病到慢性病。），可推断出第一段的内容是为下文做铺垫，为了介绍一个疾病话题。故选A项。

2.

细节理解题。由第二段中的“Common reasons include being elderly and thin.”（常见的原因包括年老体瘦。）和“Cold hands are one of the symptoms of both anemia (贫血症) and hypothyroidism (甲状腺机能减退). Diabetes, which reduces blood circulation, can also trigger it. And if your heart is weak from heart disease, your body may prioritize sending blood to your core over your limbs.”（手冰冷是贫血和甲状腺功能减退的症状之一。糖尿病会减少血液循环，也会引发手冰冷。如果你的心脏因为心脏病而虚弱，你的身体可能会优先把血液输送到你的心脏而不是四肢。），可知年纪大、偏瘦、糖尿病和心脏病是导致双手冰冷的原因，文章并未提及肥胖导致双手冰冷。故选D项。

3.

细节理解题。由第四段中的“Raynaud’s is more common in women, and it most often develops before the age of 30. In fact, if you develop Raynaud’s when you’re older—usually after 40—it can be a sign of another underlying issue.”（雷诺氏病在女性中更为常见，最常在30岁之前发病。事实上，如果你在40岁以后得雷诺氏病的话，这可能是另一个潜在问题的征兆。），可知在某些情况下，雷诺氏病可能是一些健康问题的征兆。故选C项。

4.

推理判断题。由最后一段“For the majority of people living with Raynaud’s, medication won’t be necessary. However, a rare, more severe form of Raynaud’s affects less than one in 1,000 people. In these cases, blood can become completely blocked, causing sores on the hands. If they go untreated, it can lead to gangrene (坏疽) and, very rarely, amputation (截肢).”（对于大多数雷诺氏病患者来说，药物治疗是不必要的。然而，一种罕见的，更严重的雷诺氏病影响不到千分之一的人。在这种情况下，血液会完全阻塞，导致手部疼痛。如果他们得不到治疗，可能会导致坏疽和截肢。），可知本段主要讲不同雷诺氏病患者，有的不需要治疗，有的不治疗，后果严重，可推断出在下一段中，作者可能会谈论雷诺氏病的治疗及预防手部冰冷的方法。故选B项。