A
While testing capacity is gaining ground, the road ahead remains long. The health system has never had to manage testing at the scale needed to control this pandemic, and doing so may require extraordinary solutions, expecting that the gap between testing need and testing capacity will only be wider as states reopen.
Health experts have called for testing well beyond current levels. But increasing capacity will be a challenge at every step in the process.
Step 1
A sample, such as saliva (唾液) or sample from the nose or throat, is collected.
Challenge:
Supplies such as swabs (拭子) and vials (瓶子) are specialized and controlled. This makes the supply chain weak to demand increases. In March, testing was held up by a shortage of swabs.
Step 2
The sample is placed in a solution and delivered to lab technologist.
Challenge:
Workforce is already an issue at many labs Hiring is difficult, as only certified technologists are trained to handle the patient samples.
Step 3
Chemical liquids called reagents (试剂) extract and strengthen the virus’s genetic material.
Challenge:
Labs have faced reagent shortages, and industry groups have already noted that a rise in testing demand has the potential to use up supplies.
Step 4
Machines detect the presence of the virus in a sample.
Challenge:
Dozens of test systems have been FDA approved, but many labs lack the up-front money to invest in the technology and growing up.
1. Which organ will we fail to get a testing sample from?
A. The mouth. B. The throat. C. The nose. D. The ears.
2. What is the challenge for Step 4?
A. Supply shortage. B. Workforce in demand.
C. Genetic substances. D. Financial support in advance.
3. What does the passage intend to tell us about?
A. Ways to fight pandemic. B. Testing capacity for viruses.
C. Roadblocks to testing goals. D. Efforts to test viruses.
【答案】1. D 2. D 3. C
【解析】
这是一篇说明文。文章主要介绍了医学检测
四个步骤，以及每个步骤所遇到的挑战。
【1题详解】
细节理解题。根据Step 1部分中A sample, such as saliva (唾液) or sample from the nose or throat, is collected.可知采集样本，如唾液、鼻子或喉咙采集的样本。由此可知，我们可以从嘴巴、喉咙或鼻子采集到样本，但是无法从耳朵获得样本。故选D。
【2题详解】
细节理解题。根据最后一段Dozens of test systems have been FDA approved, but many labs lack the up-front money to invest in the technology and growing up.可知FDA已经批准了几十个测试系统，但许多实验室缺乏前期资金来投资这项技术和发展。由此可知，第四步的挑战是预先提供资金支持。故选D。
【3题详解】
推理判断题。根据第一段While testing capacity is gaining ground, the road ahead remains long. The health system has never had to manage testing at the scale needed to control this pandemic, and doing so may require extraordinary solutions, expecting that the gap between testing need and testing capacity will only be wider as states reopen.可知虽然检测能力正在增强，但前面的路仍然很长。卫生系统从来没有必要以控制这一流行病所需的规模管理检测，这样做可能需要非常的解决办法，预期随着各州重新开放，检测需求和检测能力之间的差距只会越来越大。以及文章主要介绍了医学检测的四个步骤，以及每个步骤所遇到的挑战。由此可推知，这篇文章想告诉我们实现检测目标会遇到的障碍。故选C。
