1. (2022高一上·涟水月考) 阅读下面的短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项。

Which comes first, happiness or money? Are richer people happier? And 1, how do people get richer? A recent study could tell you the answer.

The study 2 thousands of teenagers and found that those who felt better about life as young adults 3 to have higher incomes by the time they 4 29. Those who were happiest earned an average of $8, 000 more than those who were the most 5.

The researchers, from University College London and the University of Warwick, say that very gloomy (沮丧的) teens, no matter how tall or smart they were, earned 10% less than their peers, 6 the happier ones earned 7 30% more.

Happier teenagers have an easier time 8 school, college and the job interview, 9 because they always feel better about life. It may also be true that happier people find it easier to make friends, who are often the key to homework help or networking.

A report in June suggested that professional respect was more important than  10 in terms of workplace happiness. In August scientists announced that they had found the 11 for happiness in women. Alas! The same gene doesn't appear to have 12 effect on men. And in October researchers in the UK and in the US announced that people who eat seven portions of fruit and vegetables a day report being the happiest.

If it is really true that happier kids 13 being wealthier kids, is it necessary for parents to get their kids to do the homework? The fact is that no homework will make kids happy but surely hurt their grades. Studies do show, 14, that more education 15 better-paid jobs, which may give us a deep thought.