Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.
How might volunteering contribute to lower blood pressure? Performing volunteer work could increase physical activity among people who aren’t otherwise very active, says lead study author Rodlescia Sneed, a doctoral candidate in social and health psychology at Carnegie Mellon University. It may also reduce stress. “Many people find volunteer work to be helpful with respect to stress reduction, and we know that stress is very strongly linked to health outcomes,” she says. As with any activity thought to improve health, researchers are trying to identify the specific characteristics of volunteering that provide the greatest benefit. For example, how much time would you need to put into volunteer work to lower your blood pressure or live longer? In the Carnegie Mellon study, 200 hours of volunteering per year correlated to lower blood pressure. Other studies have found a health benefit from as little as 100 hours of volunteering a year. Which types of volunteer activities improve health the most? No one really knows. Sneed speculates that mentally stimulating activities, like tutoring or reading, might be helpful for maintaining memory and thinking skills, while “activities that promote physical activity would be helpful with respect to cardiovascular health, but no studies have really explored this.” One key for deriving health benefits from volunteering is to do it for the right reasons. A 2012 study in the journal Health Psychology found that participants who volunteered with some regularity lived longer, but only if their intentions were truly altruistic. In other words, they had to be volunteering to help others not to make them selves feel better.
The Greek philosopher Aristotle once surmised that the essence of life is “To serve others and do good.” If recent research is any indication, serving others might also be the essence of good health.
According to paragraph 2, what information about volunteer has NOT been supported by researches?
A.100 hours of voluntary activities are enough for a certain health benefit, but a low blood pressure level requires double that amount.
B.Only 100 hours of volunteering per annum are needed to reap a health benefit.
C.200 hours of voluntary activities should be spent annually to influence the level of blood pressure.
D.Mentally demanding works enhance intellectual capacity while physical ones benefit the heart and blood flow.
Đáp án B
Theo đoạn 2, thông tin nào về tình nguyện viên không được được ủng hộ bởi các nghiên cứu?
A.100 giờ hoạt động tự nguyện là đủ cho một lợi ích sức khỏe nhất định, nhưng bệnh huyết áp thấp đòi hỏi gấp đôi số giờ đó
B.Chỉ cần 100 giờ tình nguyện mỗi năm để gặt hái được một lợi ích sức khỏe
C.200 giờ hoạt động tự nguyện nên được dành ra hàng năm để ảnh hưởng đến mức độ huyết áp
D.Những công việc đòi hỏi trí tuệ giúp nâng cao năng lực trí tuệ trong khi những công việc thể chất có lợi cho tim và lưu lượng máu
Căn cứ vào thông tin đoạn hai:
in the Carnegie Mellon study, 200 hours of volunteering per year correlated to lower blood pressure. Other studies have found a health benefit from as little as 100 hours of volunteering a year. (trong nghiên cứu của Carnegie Mellon, 200 giờ tình nguyện mỗi năm có liên quan đến bệnh huyết áp thấp. Các nghiên cứu khác đã nhận thấy một lợi ích sức khỏe sẽ đạt được từ ít nhất 100 giờ tình nguyện một năm.)