Question

A study published in Blood Pressure Monitoring stated that sitting with your legs crossed can increase your blood pressure. The reason this happens is because the blood in your legs has to work against gravity to be pumped back to your heart, crossing one leg over the other increases resistance, making it even harder for the blood to circulate. This causes your body to increase your blood pressure to push the blood back to the heart. You won’t feel any immediate effects, but if you sit for long periods of time it’s important that you take note of how long you have your legs crossed for. You shouldn’t have your legs crossed for more than 15 minutes, and it’s important that you get up and walk around at least once every hour.

Crossing your legs can also lead to neck and back pain. Ideally, it’s best for our bodies to sit with our feet planted flat, hip width apart, on the floor, but it’s not easy to maintain perfect posture all day at the office. When you sit with your legs crossed your hips are in a twisted position, which can cause one of your pelvic bones to rotate. Since your pelvic bone supports your neck and spine, this can cause pressure on your lower and middle back and neck.

You also might notice that when you sit with your legs crossed for long periods of time your feet and legs get tingly or have the feeling of being asleep. This is because when one leg sits on top of the other it causes pressure on the veins and nerves in your legs and feet. It can cause numbness and/or temporary paralysis in the legs, ankles, or feet. While the feeling of discomfort may only last a minute or two, repeatedly crossing your legs until they feel numb can cause permanent nerve damage.

1.What can be learned from the text?

A. We will feel blood pressure increased immediately after crossing legs.

B. It’s easy for us to keep correct posture all day.

C. The pelvic bone can cause pressure on your lower and middle back and neck.

D. Your legs will get pain with legs crossed for long periods of time.

2.Crossing your legs may cause some health problems except___________.

A. Causing the pain of neck and back.

B. Increasing the blood pressure.

C. Leading to the pain of feet and legs.

D. Resulting in the disability of arms.

3.What is suggested according to the text?

A. Do not often cross your legs while sitting.

B. Cross your legs for more than 15 minutes every day.

C. Get up and walk around at least once every other hour.

D. Cross your legs to lower your blood pressure.

Answer

1. D

2. D

3. A

【解析】

本文是一篇说明文，介绍了跷二郎腿对身体的危害很大，最正确的坐姿是把双脚平放在地上。

1.细节理解题。根据第三段中的“You also might notice that when you sit with your legs crossed for long periods of time your feet and legs get tingly or have the feeling of being asleep.”可知，长时间跷二郎腿会使你的腿痛，故D项正确。

2.细节理解题。根据第一段中的“A study published in Blood Pressure Monitoring stated that sitting with your legs crossed can increase your blood pressure.”可知，跷二郎腿会使血压升高，根据第二段中的“Crossing your legs can also lead to neck and back pain.”可知，跷二郎腿会造成颈部和后背疼痛，根据第三段中的“You also might notice that when you sit with your legs crossed for long periods of time your feet and legs get tingly or have the feeling of being asleep.”可知，跷二郎腿会造成你的腿和脚刺痛，文章没有说跷二郎腿会造成胳膊残废，故D项正确。

3.推理判断题。文章介绍了跷二郎腿对身体的危害很大，再结合第二段中的“Ideally, it’s best for our bodies to sit with our feet planted flat, hip width apart, on the floor,”可知，最正确的坐姿是把双脚平放在地上，不要跷二郎腿，故A项正确。