Eating less meat is becoming more common all over the world.In the US，for example，there is a campaign（運(yùn)動）called Meatless（無肉的）Mondays.The idea is to have meatless meals every Monday.At the end of 2018，230 middle and primary schools in the US had joined this campaign.These schools give students a vegetarian（素食的）breakfast and lunch every Monday.
    How did Meatless Mondays become part of food culture in the West？The first reason is that it's healthy.Many studies have shown that eating less meat is good for people's health. "Vegetarian diets can stop people from being fat or ill，" scientist Sharon Palmer said. "Even going meatless one day a week can make a difference."
    But it's not only about health.A study from Nature found that the greenhouse gases from animal products（產(chǎn)品）make up 78 percent of total agricultural（農(nóng)業(yè)的）emissions（排放）.If we eat less meat，it will be better for the environment.
    In March this year，New York Mayor（市長）Bill said that all public schools in New York City would join the Meatless Mondays campaign.Joining the campaign，he said，will help us stay healthy and keep the earth green for the future.
（1）When can't many students eat meat in the US？

On Monday.

On Monday.

（2）What is good for people's health？

Eating less meat.

Eating less meat.

（3）How can vegetarian diets help people？

It can stop people from being fat or ill.

It can stop people from being fat or ill.

（4）What makes up the most agricultural emission？

The greenhouse gases from animal products.

The greenhouse gases from animal products.

（5）Did Bill agree to join the campaign？

Yes，he did.

Yes，he did.