Question

    COVID-19(新冠病毒) is a threat to the very people fighting it-nurses, doctors, and other first responders, who are exposed to infected patients. Now, a team has developed two devices(设备) that could reduce their risks by sucking away infectious bacteria: a helmet to be worn by a patient,and a small tent in which a patient could be protected. The inventors hope they'll reduce the deaths among healthcare workers.

Negative-pressure rooms have been used in hospitals since the 1980s to keep airborne bacteria from spreading.But Nathan Haas says such rooms cost about$12,000. He and his colleagues wanted to develop a cheaper way to create a negative pressure environment for patients.The new devices could lower the need for negative-pressure rooms,which are rare in many parts of the world,according to Haas.

The helmet can be used when staff transport patients and the tent can protect the upper body of a bed-bound patient wearing a mask,allowing staff to perform several procedures.

“They represent a really simple solution to potentially helping reduce virus spread and increase the safety of healthcare workers, as well as patient safety,” says Ben Bassin.

When the researchers tested their devices with a healthy volunteer,they saw 97% to 99%fewer bacteria outside the devices than inside.They also tested the devices' ease of use and comfort with seven COVID-19 patients.The response from patients and staff was good, Bassin says.

But Reuben Strayer notes the tests did not prove that these devices work to protect medical staff in real-life situations. He says he wants to see independent effect, “to see if they perform as they are advertised.”

1.The following statements are true EXCEPT     

A.The devices are not complicated to use

B.People have already used the devices widely

C.The effect of the devices remains to be seen

D.Negative-pressure rooms are not common because of the high cost

2.What will most probably be discussed in the following paragraph?

A.The advantages of the devices. B.Different appearances of the devices.

C.Measures to put the devices into practice. D.The reasons for inventing the devices.

3.What is the author's purpose in writing the text?

A.To inform readers of the devices. B.To praise the efforts of the researchers.

C.To stress the importance of the devices. D.To encourage people to buy the devices.

Answer

1.B

2.C

3.A

【解析】

这是一篇说明文。文章主要介绍了两种通过吸走传染性细菌来降低传染风险的设备：一种是给病人戴的头盔，另一种是可以保护病人的小帐篷。发明者希望他们能减少医疗工作者的死亡率。Nathan Haas开发头盔的原因是因为想要找到一种更便宜的方法来为病人创造一个负压力的环境。文章还说明了研究人员对设备的测试结果，以及Nathan Haas对设备的一些看法。

1.

细节理解题。根据最后一段中But Reuben Strayer notes the tests did not prove that these devices work to protect medical staff in real-life situations.可知但是Reuben Strayer指出，这些测试并不能证明这些设备在现实生活中能够起到保护医护人员的作用。由此可知，这些设备还没有在现实生活中使用，故B选项“人们已经广泛地使用了这些设备”不正确。故选B。

2.

推理判断题。根据最后一段But Reuben Strayer notes the tests did not prove that these devices work to protect medical staff in real-life situations. He says he wants to see independent effect, “to see if they perform as they are advertised.”可知但是Reuben Strayer指出，这些测试并不能证明这些设备在现实生活中能够起到保护医护人员的作用。他说，他想看到独立效应，“看看他们的表现是否像广告宣传的那样。”由此可推知，下一段最可能讨论的是将这些装置付诸实施的措施。故选C。

3.

推理判断题。根据第一段中Now, a team has developed two devices(设备) that could reduce their risks by sucking away infectious bacteria: a helmet to be worn by a patient, and a small tent in which a patient could be protected. The inventors hope they'll reduce the deaths among healthcare workers.可知现在，一个团队开发了两种设备，可以通过吸走传染性细菌来降低他们的风险：一种是给病人戴的头盔，另一种是可以保护病人的小帐篷。发明者希望他们能减少医疗工作者的死亡率。结合Nathan Haas开发头盔的原因是因为想要找到一种更便宜的方法来为病人创造一个负压力的环境。文章还说明了研究人员对设备的测试结果，以及Nathan Haas对设备的一些看法。由此可推知，作者写这篇文章的目的是告知读者设备的信息。故选A。