It's predicted that high-income earners generally spend less relative to their income than others.

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It’s predicted that high-income earners generally spend less relative to their income than others．
据预测，相对于工资水平而言，高收入人群的支出通常要低于其他人群。
由题干关键词predicted和high-income定位到原文画线处。
[H]段倒数第二句提到，根据直觉、理论以及一些证据可以预测，相对于其收入而言，高收入人群的支出通常要低于其他人群。题干中的generally对应原文中的on average；spend less relative to meir income对应原文中的spend a smaller share of their income,故答案为[H]。

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2 Questions are based on the following passage.
It began with some marshmallows (棉花软糖). In the 1960s Walter Mischel, a psychologist then working at Stanford University, started a series of experiments on young children. A child was left alone for 15 minutes with a marshmallow or similar treat, with the promise that, if it remained uneaten at the end of this period, a second would be added. Some of the children, who were aged four or five at the time, yielded to temptation before time was up. Others resisted, and held out for the reward.
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Study after study has confirmed Dr. Mischel's insight. However, recent observations, however, raise the possibility that developing self-control is not always an unalloyed (纯粹的) good.
Work published two years ago by Gene Brody of the University of Georgia, who looked at a group of young black Americans, showed that those who exhibited serf-control as teenagers did indeed get the expected benefits. But if such serf-controllers came from deprived backgrounds, they developed higher blood pressure, were more likely to be obese and had higher levels of stress hormones than their less-serf-controlled peers.
That correlation did not apply to people who started farther up the social ladder.
Dr. Brody and his colleagues have followed this study with one that comes to an equally astonishing conclusion: for people born at the bottom of the social heap, seif-control speeds up the process of ageing.
Dr. Brody and his colleagues followed almost 300 black American teenagers of different backgrounds as they aged from 17 to 22. For the first few years the researchers assessed their volunteers' levels of self-control, and also looked for signs of depression, aggression and drug use. They assessed, too, those volunteers' socioeconomic backgrounds. But the last examination, when participants were 22 years old, was different.
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Which of the following is true of Dr. Mischel's experiment?

A．It probed into the self-control level of little children.

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C．It exhibited that serf-control connects with life achievement.

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