单选题 There are many factors which may have an influence on adults and children being able to lead a healthy life.
Nowadays, people are very busy. Often, both parents work outside the home. Children are expected to take on more responsibility at home to help their parents. They also have sporting and leisure activities as well as school expectations.
The busyness also adds another factor: the need to use cars to get from one place to another quickly.
Today, society places a lot of emphasis on technology. Computers, DVDs, CDs, television, Playstations and Xboxes have become major leisure activities, rather than traditional more active pursuits. This has led to a more sedentary lifestyle.
The media provide entertainment and information. Unfortunately, they also promote fast food which fits easily into busy lifestyles. It is much more convenient at times to buy a quick takeaway rather than prepare a meal. The media constantly bombard (轰炸) their audience with "perfect" body images, the need to buy the most fashionable clothes, the most up-to-date computer games, the best places to visit and the best things to do.
Environments vary. We may be exposed to pollution, such as cigarette smoke. This can be harmful to people who suffer from breathing difficulties. Environments where passive smoking is unavoidable make it difficult to lead a healthy life.
Perhaps the important factor influencing healthy lifestyles is motivation, or the desire to be healthy. Any person who wants to be healthy will find a way to be healthy—if he/she is motivated enough!

单选题 The passage is mainly about ______.
A. benefits of a healthy life style B. demands of daily life
C. factors affecting a healthy lifestyle D. a positive approach to healthy living

【正确答案】 C

【答案解析】[解析] 本题考查考生对文章主旨大意的把握。C项“影响健康生活方式的因素”正确。其他三项都是以偏概全。

单选题 The word "sedentary" in Paragraph 4 probable means ______.
A. having a lot of things to do
B. involving little exercise or physical activity
C. being isolated from the outside world
D. experiencing a lot of stress

【正确答案】 B

【答案解析】[解析] 本题考查特定语境中的词汇含义。答案定位到第四段。有关电脑、DVDs、CDs、电视、游戏机的休闲活动都是需要坐着进行的，因此锻炼和身体活动较少。sedentary本义就是“需要久坐的”。所以B项正确。

单选题 Which of the following is NOT mentioned in the passage as a factor leading to the popularity of fast food?
A. Cheap price. B. The media. C. Busy lifestyle. D. Convenience.

【正确答案】 A

【答案解析】[解析] 本题考查考生对细节的把握。定位到第五段。只有A项未提及。

单选题 Which is NOT listed as a factor influencing the ability to have a healthy lifestyle?
A. Pollution. B. Economic factors.
C. Dependence upon cars. D. Influence of family or friends.

【正确答案】 B

【答案解析】[解析] 本题考查细节和推断。A项和C项都很直接地说到了。而D项隐含在第一、六段之中。父母都上班，孩子就必须承担更多的家务；朋友、家人吸烟，会导致被动吸烟。而B项是没有提到过的。

单选题 According to the author, ______ may be the most important factor influencing healthy lifestyles.
A. technology B. cultural background
C. environment D. the desire to be healthy

【正确答案】 D

【答案解析】[解析] 定位到最后一段，可知作者的观点是只要你有足够强烈的动机，任何人都可以过上健康的生活。