Nowadays, school buses are popular in China. Many students take a school bus to school. It looks like a tourist bus. The underground and common (普通的) buses often take much time. But school buses can save a lot of time. How do children go to school in other countries?

In the US, yellow school buses are a common way for children to get to school. There are about 480, 000 school buses in the country. But why are the school buses all yellow? Yellow became the color of school buses in 1939. American educator (教育家) Frank W.Cyr first suggested (建议) it. The color on the buses helped warn other cars: be careful. Black letters (字母) on a yellow bus are also easy to see in the early morning.

However, there are not many school buses in the UK. Students from public schools usually take common buses or the underground to school. In Japan, schools are small. So there is no need to use school buses. Students there usually walk to school.

【小题1】Many students in China take ________to school.

A．the underground

B．school buses

C．common buses

D．a special car

【小题2】The underlined word “warn” in Paragraph 2 means “ ________ ”.

A．tell

B．fight

C．stop

D．follow

【小题3】Students from ________ often go to school on foot.

A．China

B．Britain

C．America

D．Japan

【小题4】From the passage, we can know ________ .

A．buses are popular in Japan

B．letters on a yellow bus are black and easy to see

C．a school bus in the US looks like the underground

D．many students in the UK take school buses to school

【小题5】What is the main idea of the passage?

A．Why are school buses yellow in the US?

B．How do students go to school in different countries?

C．Why are school buses popular in China and America?

D．How do students go back home from school in the world?