单选题
The mass media is a big part of our culture, yet it can also be a helper, adviser and teacher to our young generation. The mass media affects the lives of our young by acting as a(an)
1
for a number of institutions and social contacts. In this way, it
2
a variety of functions in human life.
The time spent in front of the television screen is usually at the
3
of leisure: there is less time for games, amusement and rest.
4
by what is happening on the screen, children not only imitate what they see but directly
5
themselves with different characters. Americans have been concerned about the
6
of violence in the media and its
7
harm to children and adolescents for at least forty years. During this period, new media
8
, such as video games, cable television, music videos, and the Internet. As they continue to gain popularity, these media,
9
television,
10
public concern and research attention.
Another large societal concern on our younger generation
11
by the media, is the body image.
12
forces can influence body image positively or negatively.
13
one, societal and cultural norms and mass media marketing
14
our concept of beauty. In the mass media, the images of
15
beauty fill magazines and newspapers,
16
from our televisions and entertain us
17
the movies. Even in advertising, the mass media
18
on accepted cultural values of thinnesss and fitness for commercial gain. Young adults are presented with a
19
defined standard of attractiveness, a(n)
20
that carries unrealistic physical expectations.
【正确答案】
B
【答案解析】[解析] (substitute替代物，后跟for)。句意为：大众传媒成为许多机构和社会关系的替代物，影响年轻人的生活。A(representative代表)后跟of，如a representative of the UN；C(preference偏爱)后也可跟for，但不合句意；D(alternative替代物，可供选择的办法)后跟to，如Is there an alternative to going?还有可供选择的去路吗?
【答案解析】[解析] (expense开支，代价)。句意为：在电视屏幕前度过的时光通常是以牺牲闲暇时光为代价，没有多少时间用于游戏、娱乐和休息。at the expense／cost of意为“以……为代价”，符合句意。A(height)意为“高度”；at the height of意为“在……高度”；C(mercy怜悯，支配，控制)，at the mercy of意为“完全受……支配”；D(risk冒险，风险)，at the risk of意为“冒着……的危险”。