When he was nine years old， American boy Milo Cress had a question： How many plastic straws（吸管） do Americans use every day？

He quickly learned there wasn't a simple answer． The boy tried to work it out himself． Through lots of research， Cress found out that Americans use about 500 million straws every day． In hopes of reducing plastic waste， he founded the Be Straw Free project in 2011．

Cress started the project in his hometown ﹣ Burlington， Vermont． He asked a local restaurant to stop offering straws with every drink order． It was a simple change． However， it would save money． And by doing that， the restaurant would cut down on its straw use by 50 percent．

For the years that followed， Cress tried to spread his project across the United States． More and more restaurants agreed to join． They stop providing the customer with a straw unless he or she asks for one． Last April， Seattle became the first American city to completely ban （ 禁 止 ） plastic straws．

Plastic pollution has been one of the most serious problems today． According to scientists， more than eight million tons of plastic end up in the ocean each year． Plastic straws are especially terrible． They make it easy for people to get comfortable with single﹣use plastics．

After his project became popular， Cress took his findings on the road． He has since spoken to tens of thousands of students around the world． He wants to encourage more people to say no to plastic straws．

"Focusing（聚焦） on straws is one simple step we all could take，" Cress says． "And it makes me feel that I， as a kid， could make a difference， too．"

（1）When did Milo Cress start to care about the problem of straws？ 　　

A．	Ten years ago．
B．	In the year 2011．
C．	In the year that he was 9．

（2）Cress started the Be Straw Free project in order to 　　．

A．	get a good score in science at his school
B．	encourage people to reduce plastic waste
C．	become a famous person in his hometown

（3）What did Cress ask a restaurant in Burlington to do？ 　　

A．	Stop offering straws to its customers．
B．	Prevent people from using straws to drink．
C．	Count the number of straws it uses every day．

（4）Plastic straws are especially terrible because 　　．

A．	they are the most serious problem today
B．	scientists pay little attention to their influence
C．	they help people get used to using single﹣use plastics

（5）Over the years， Cress has 　　．

①spread his project across the United States

②asked Seattle to completely ban plastic bags

③counted the plastic straws in the ocean every year

④spoken to teens around the world about plastic waste

A．	①③
B．	②③
C．	①④