Which of the following could be the most appropriate title for the text？A．How to Innovate

According to the last paragraph, Brynjolfsson and McAfee discussed______.

A．the predictability of machine behavior. in practice

B．the formula for how work is conducted efficiently

C．the ways machines replace human labor in modern times

D．the necessity of human involvement in the workplace

Hagel argues that jobs in the U.S. are often______.

A．performed by innovative minds

B．scripted with an individual style

C．standardized without a clear target

D．designed against human creativity

The authors of Race Against the Machine argue that______.

A．technology is diminishing man" s job opportunities

B．automation is accelerating technological development

C．certain jobs will remain intact after automation

D．man will finally win the race against machine

According to the first paragraph, economic downturns would______.

A．ease the competition of man vs. machine

B．highlight machines" threat to human jobs

C．provoke a painful technological revolution

D．outmode our current economic structure

According to the first paragraph, social psychologists have found that______.

A．our self-ratings are unrealistically high

B．illusory superiority is baseless effect

C．our need for leadership is unnatural

D．self-enhancing strategies are ineffective

McRib is mentioned in Paragraph 3 to show that______.

A．consumers are sometimes irrational

B．popularity usually comes after quality

C．marketing tricks are often effective

D．rarity generally increases pleasure

According to Dunn and Norton, which of the following is the most rewarding purchase?

A．A big house.

B．A special tour.

C．A stylish car.

D．A rich meal.

re in fact at higher risk of some diseases compared to those who are overweight. And there are health conditions for which being overweight is actually【C2】______. For example, heavier women are less likely to develop calcium deficiency than thin women. 【C3】______, among the elderly, being somewhat overweight is often an【C4】______of good health. Of even greater【C5】______is the fact that obesity turns out to be very difficult to define. It is often defined【C6】______body mass index, or BMI. BMI【C7】______body mass divided by the square of height. An adult with a BMI of 18 to 25 is often considered to be normal weight. Between 25 and 30 is overweight. And over 30 is considered obese. Obesity, 【C8】______, can be divided into moderately obese, severely obese, and very severely obese. While such numerical standards seem【C9】______, they are not. Obesity is probably less a matter of weight than body fat. Some people with a high BMI are in fact extremely fit, 【C10】______others with a low BMI may be in poor【C11】______. For example, many collegiate and professional football players【C12】______as obese, though their percentage body fat is low. Conversely, someone with a small frame. may have high body fat but a【C13】______BMI. Today we have a(an) 【C14】______to label obesity as a disgrace. The overweight are sometimes【C15】______in the media with their faces covered. Stereotypes【C16】______with obesity include laziness, lack of will power, and lower prospects for success. Teachers, employers, and health professionals have been shown to harbor biases against the obese. 【C17】______very young children tend to look down on the overweight, and teasing about body build has long been a problem in schools. Negative attitudes toward obesity, 【C18】______in health concerns, have stimulated a number of anti-obesity【C19】______My own hospital system has banned sugary drinks from its facilities. Many employers have instituted weight loss and fitness initiatives. Michelle Obama has launched a high-visibility campaign【C20】______childhood obesity, even claiming that it represents our greatest national security threat.

【C1】

A．denied

B．concluded

C．doubted

D．ensured

Involuntary part-time employment in the US______.

A．is harder to acquire than one year ago

B．shows a general tendency of decline

C．satisfies the real need of the jobless

D．is lower than before the recession

Which part of the jobs picture was neglected?______.

A．The prospect of a thriving job market

B．The increase of voluntary part-time jobs

C．The possibility of full employment

D．The acceleration of job creation