Unit 2 Healthy eating learning about language课时作业

第一节 阅读理解

Smile, you're on body cam

　　As camera technology gets smaller and cheaper, it isn't hard to imagine a future where we're all filming everything all the time, in every direction.

　　Would that be a good thing? There are some obvious potential upsides. If people know they are on camera, especially when at work or using public services, they are surely less likely to misbehave. Another upside is that it would be harder to get away with crimes or to escape from blame for accidents.

　　Body-cam data could also create a legal minefield. Arguments over the truth and interpretation of police footage(影像) have already surfaced. Eventually, events not caught on camera could be treated as if they didn't happen. Alternatively, footage could be faked or doctored (伪造) to avoid blame or do wrong to others.

　　Of course, some people think that if you are not doing anything wrong, you have nothing to fear. But most people have done something embarrassing, or even illegal, that they regret and would prefer hadn't been caught on film. People already remove their social media feeds or avoid doing anything wrong in public - for fear of damaging their reputation.

　　The always-on-camera world could even threaten some of the qualities that make us human. We are natural persons who enjoy talking about other people's private lives and while those might not be desirable behaviours, they oil the wheels of our social interactions. Once people assume they are being filmed, they are likely to keep silent.

　　The argument in relation to body-cam ownership is a bit like that for guns: once you go past a critical threshold(临界值), almost everyone will feel they need one as an insurance policy. We are nowhere near that point yet- but we should think hard about whether we really want to say lights, body cam, action.

1. What does the underlined word "upsides" in Paragraph 2 refer to?

A. advantages. B. rules. C. shortcomings. D. dangers.

2. Why do people argue about police footage?

A. Police footage can show the truth. B. Events caught on footage are treated unfairly.