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England and Wales launched a COVID-19 smartphone app in October，allowing users to track contacts，check the local level of risk and record visits to high-risk places，four months after the technology was promised to the public.
The government had said a COVID-19 app would arrive in May，but early testing was dogged by problems，and developers gave up home-grown technology，preferring models in other countries in June.As the delay lengthened，the government played down the importance of smartphones in fighting COVID-19，saying that rather than an app being central to the test and tracking system，it was "the cherry on the cake".
According to NHS report，however，with infection rates rising，every tool available must be used to prevent transmission，including the latest technology. "We have worked with tech companies，international partners，and privacy and medical experts to develop an app that is secure，simple to use and will help keep our country safe."
The app uses Bluetooth signals to log when a user is in close contact with another user，within two meters for 15 minutes or more.If someone then tests positive for COVID-19，they can choose to share the result anonymously（匿名的）with their close contacts，who will each receive a warning and will have to isolate for 14 days.The app will enable users to book a COVID-19 test if it is available，check symptoms，and register using a QR code.
People aged over 16 will be encouraged to download the app by advertisements with the line："Protect your loved ones.Get the app." Britain has recorded 6，178 new coronavirus cases on Wednesday，which is close to the highest ever daily total，recorded in early May.
（1）Why was the launch of the NHS COVID-19 app delayed？ CC
A．The British government gave up the system.
B．People didn't want their cell phone tracked.
C．The early experiments didn't go on smoothly.
D．The app faced competition from foreign countries.
（2）What does the underlined phrase "the cherry on the cake" suggest？ BB
A．The app is getting more popular.
B．The app is not the most essential.
C．The app still needs improvements.
D．The app should be thought highly of.
（3）What is the function of the NHS COVID-19 app？ CC
A．It helps users to book a test by using Bluetooth.
B．It uploads information of patients to a central server.
C．It informs people when their close contacts test positive.
D．It enables people to register to hospitals using QR codes.
（4）Why is the number of coronavirus cases mentioned in the last paragraph？ AA
A．To prove the necessity to use the app.
B．To describe the serious situation there.
C．To show the number of patients cured.
D．To build up people's trust in their government.
【答案】C；B；C；A
【解答】
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發(fā)布：2024/5/27 14:0:0組卷：0引用：1難度：0.5
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