1 . “Bike buses”—adult-led group bike rides to school — are taking over neighborhoods. Many families are abandoning cars and starting a sweatier morning ride with friends, biking in organized groups led by grown-up volunteers. The effort is a call to fight against climate change, encourage exercise and reduce school drop-off traffic. And both parents and kids say it just makes the children happier.

Minneapolis dad devil Olson organized a bike bus for his local school zone. Olson says cycling create connectivity between all walks of life.

Six years ago, Olson partnered with Minneapolis Public Schools to run a 2- mile bike bus that dropped off students at two elementary schools. So far, Olson has led 11 semi-annual bike buses that have grown from about 60 participants to nearly 150. “We meet at 8 am. To play soccer and football, and eat do nuts,” said Olson. “Then we review safety measures and start our ride. It’s nothing but laughing, shouting and pure joy.”

The group makes about eight stops along the way to pick up children, many of whom are accompanied by parents. “We want kids to celebrate going to school,” explained Olson, adding that the kids who participate enjoy opportunities to communicate with students in different graded.

In San Francisco, lake Bornheimer co-runs SF Bike Bus, which organized city-wide school routes, with the goal of inspiring people around the country to start bike buses. “Our first 3- mile ride included more than 100 kids, families, and adults in one trip to school,” said Bornheimer. The bike bus experience has reassured parents who were otherwise nervous about their children biking around traffic. “Our hope is to create a bike bus for every school in San Francisco,” he said.

1. Which aspect of bike buses is covered in the first paragraph?

A．Their origin.	B．Their purpose.
C．Their appearance.	D．Their development.

2. How does a bike bus benefit children according to Olson?

A．It contributes a lot to their bravery.	B．It believes them of their learning stress.
C．It increased their communication chances.	D．It improved their academic performances.

3. What does Bornheimer want to do next?

A．Organize more bike buses.	B．Remove parents ‘ worries.
C．Convince parents to join them.	D．Design the best school routed.

4. What is the text mainly about?

A．A great source of happiness.	B．A safe means of transportation.
C．Arising trend of living in the US.	D．A unique way of getting kids to class.