1 . 阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。

Scientists have long discussed the possibility that blood pressure drugs might affect cancer risk. After several news stories    1    (publish) that focused only on the potential risk, some patients were    2     (hesitate) about taking their medications.    3    the largest analysis to date should put their minds    4    ease: based on 31 trials, the 2020 university of Oxford review concludes that none of the classes of blood pressure drugs raises the risk of cancer. Meanwhile, there    5    (be) good evidence that these prescriptions help to prevent heart lacks and strokes.

People    6    (live) with obesity needn’t be reminded that, as a group, they have    7    higher risk of life-threatening health issues. It’s not that they don’t realize this; it’s that shedding extra kilograms and keeping them off is far    8    (easy) said than done. However, overweight people who eat    9    (healthy) have a low risk of dying from cardiovascular disease, according to a new study. Swedish researchers measured how closely people kept to a Mediterranean-type diet, and found that those    10     ate a healthier diet were at lower risk of dying, regardless of their BMI. The authors suggest that we shift our focus onto healthy eating, but caution that being overweight still carries health risks.

2 . When kids sit down to eat lunch at school, fruits and vegetables may not be their first choice. But with more time at the lunch table, they are more likely to pick up those healthy foods. If we want to improve children's nutrition and health, ensuring longer school lunch breaks can help achieve those goals, according to research from the University of Illinois.

“Ten minutes of seated lunch time or less is quite common. Scheduled lunch time may be longer, but students have to wait in line to get their food. This means the amount of time children actually have to eat their meals is much less than the scheduled time,” says Melissa Pflugh Prescott, assistant professor in the Department of Food Science and Human Nutrition. “During shorter lunch periods, children ate significantly less of the fruit and vegetable parts of their meal, while there was no significant difference in the amount of entrees (主食) they consumed. It makes sense that you might eat the part of the meal you look forward to first, and if there's enough time left you might go towards the other parts. But if there's not enough time, fruit and vegetables are likely to suffer,” Prescott explains.

“Our findings support policies that require at least 20 minutes of seated lunch time at school,” she states. School lunch time policies can be decided at the district level, with some room for individual schools to set their own standards; for example, schools can institute a longer lunch time than the district mandates (授权).

Prescott notes that longer lunch time can also have beneficial effects for children beyond healthy eating. “The amount of seated time children have is also a really valuable time for them to connect with their friends; they might have limited opportunities to do so throughout the school day. We found significantly fewer social interactions during the 10-minute lunch time. That indicates other positive outcomes may come from longer lunch breaks as well,” she concludes.

1. Why do students eat less of the fruit and vegetables according to Prescott?

A．They are unwilling to wait in line.

B．There is not enough time for them.

C．They're not used to a balanced diet.

D．There is too much study pressure on them.

2. What does the underlined word “institute” in Paragraph 3 probably mean?

A．Set up.

B．Put off.

C．Make use of.

D．Run out of.

3. What does the last paragraph mainly talk about?

A．Key reasons for a longer lunch time.

B．The importance of a healthy diet.

C．Other benefits of a longer lunch time.

D．The detailed lunch time arrangements.

4. What can be the best title for the text?

A．Eating lunch at school makes children healthier

B．Longer school lunch time enables children to learn better

C．Kids at school spend much time waiting in line for lunch

D．Longer lunch time helps kids eat more fruit and vegetables