Passage TwoQuestions 26 to 30 are based on the following passage:

An exercise program designed for younger adults may be inappropriate for older persons, particularly for persons over age 50. Special attention must be paid to matching the program to the interests and abilities of the participants. The goals of the program should include both social interaction and physical conditioning.Older adults should take a physical examination before starting a fitness program. Included in this examination should be a stress cardiogram (心电图) , blood pressure check, and an evaluation of joint functioning. It is a good idea for participants to learn how to monitor their own cardiorespiratory (心肺的) status during exercise.Well-designed fitness programs for older adults will have activities that begin slowly, are monitored frequently, and are geared to the enjoyment of the participants. The professional staff coordinating the program should be familiar with the signs of distress. Periods of warm-up and cool-down should be included. Activities to increase flexibility are beneficial in  ending parts of the program. Participants should wear comfortable clothing, appropriate shoes, and be mentally prepared to enjoy the activities to the fullest.

A program designed for older adults will largely conform to the criteria of activity, intensity, duration, and frequency. The principal exception is in the intensity comp where the THR (Target Heart Rate) should not exceed 120 beats per minute. This level of intensity is approximately 40% to 50% of the maximum heart rate. Also, because of possible joint or muscular or skeletal problems, certain activities may have to be done in a sitting position. Pain and discomfort should be reported immediately to the fitness instructor.

Fortunately, properly screened adults will rarely have health emergencies during a well-monitored fitness program. Like their youthful counterparts, many older adults find fitness programs socially enjoyable, physically beneficial, and occasionally addictive.

26.According to the author, ____.
A) older adults need more physical exercises
B) younger adults are not necessary to take a physical examination before a fitness program
C) fitness programs for older adults should be well-monitored
D) poorly-designed fitness programs for older adults will do serious harms to them

27.The author mentions that the maximum THR for older adult participants in sports should be less than ____beats per minute.
A) 60 B) 120C)180 D) 240

28.According to the passage,all of the following are advisable to older adults for a fitness program except____.
A) wearing appropriate clothing and shoes
B) being mentally ready for physical exercises
C) including periods of warm-up and cool-down
D) avoiding any pressure to their hearts

29.The last word of the passage“addictive”means____.
A) excessive B) enthusiasticC) dependent D) progressive

30.The passage is a piece of ____.
A) description B) narrationC) argumentation D) disposition

内容概要:本文主要探讨老年人参加健身运动的问题。老年人所参加的健身活动既要有一定的社会性，又要顾及老年人的特点及他们中不同人的不同身体状况。

26.【答案】C。
【译文】老年人的健身项目应在严格的监测下进行。
【试题分析】归纳结论题。
【详细解答】通过文章第二段可以看出，老年人在参加健身项目以前应进行体检，而在运动中，还要监测他们的心肺机能状态。而A，B，D 选项的内容则未在文中提及。

27.【答案】B。
【译文】120。
【试题分析】浏览查询细节题。
【详细解答】文章中的第四段谈到“...the THR should not exceed 120 beats per minute.”据此可知B是正确答案。

28.【答案】D。
【译文】避免对心脏造成任何压力。
【试题分析】辨别是非题。
【详细解答】文章中第三段的后半部分清楚的谈到了A，B，C选项中的内容，因此D是正确答案。

29.【答案】B。
【译文】狂热的，着迷的。
【试题分析】根据上下文猜测词义。
【详细解答】addictive一词本意为“入迷的，上瘾的”，因此排除excessive（过度的），dependent（依靠的）和progressive（渐进的）。故B为最佳答案。

30.【答案】D。
【译文】论说文。
【试题分析】文章体裁判断。
【详细解答】通过浏览全文可知本文属论说文，而不是描写，记叙或者议论文。