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In a park in Beijing, the governor has tried saving toilet paper to stop people from stealing(偷窃) it. Park officials have installed(安装) six facial recognition scanners at the city's Temple of Heaven Park. The machines will scan someone's face before providing him or her with 60 cm of toilet paper. The same person will then have to wait for nine minutes if they want extra paper. A park spokesman says there is a problem that visitors to the toilets take too much toilet paper. He says some people come and fill their bags with it. The park has put up posters and broadcast messages over speakers asking visitors to use less toilet paper.

The new facial recognition scanners have brought a surprise. They have become a tourist attraction. Visitors are now coming to look at and try out the machines. Videos of people pulling strips of toilet paper from the machines have spread quickly on social media sites. Workers are available to help people with problems using the machines or for people who urgently need more toilet paper. The scanners seem to be popular. A user on the Chinese social media site Weibo said, "This is a really good idea. I think that it should be rolled out in toilets all over the county." The effort appears to be successful so far. The daily amount of toilet paper used in the park's toilets has gone down by 20 percent.

1.Why does the park install facial recognition scanners?

A To save toilet paper.

B To keep tourists safe.

C To make the toilet clean.

D To attract more tourists.

解析：选A。推理判断题。根据第一段第一句In a park in Beijing, the governor has tried saving toilet paper to stop people from stealing it.及文章最后一句The daily amount of toilet paper used in the park's toilets has gone down by 20 per cent可知公园安装面部识别扫描仪的主要目的是节约用纸，故选A。

2.What could you do if you need to get more toilet paper?

A Wait for 9 minutes.

B Call your friend.

C Call the police.

D There is no more toilet paper.

解析：选A。细节理解题。根据第一段第三、四句The machines will scan someone's face before providing him or her with 60 cm of toilet paper. The same person will then have to wait for nine minutes if they want extra paper.可知如果人们想要第二次取纸可以再等9分钟，故选A。

3.What does the underlined phrase “rolled out” mean in Chinese?

A 滚动.

B 推广.

C 卷起.

D 蜷缩.

解析：选B。词义猜测题。根据前文a really good idea和后文in toilets all over the county可知该网友对此做法是认可的，因此是认为可以在全国范围内的厕所中“推广”，故选B。

4.How much toilet paper has been saved after the scanners are installed?

A 20%.

B 25%.

C 50%.

D 80%.

解析：选A。细节理解题。根据最后一段最后一句The daily amount of toilet paper used in the park's toilets has gone down by 20 percent.可知安装了面部识别扫描仪之后，厕纸的日用量降低了20%，故选A。

5.What is the best title of this passage?

A Ficial recognition scanners are widely used in Beijing.

B The Temple of Heaven Park has a new attraction.

C Ficial recognition scanners help to save toilet paper.

D Social media make the Temple of Heaven Park more popular.

解析：选C。文章标题题。根据全文内容厕纸使用存在浪费和偷盗行为、天坛公园安装面部识别扫描仪、厕纸用量减少、值得推广等主要信息可知本文的主旨大意为面部识别扫描仪能帮助节约厕所用纸，故选C。