Question

Read the following text and complete the table below.

MASS MEDIA AROUND THE WORLD

There are different types of mass media and some work better than others in different situations. They could be as advanced as digital billboards, or as simple as public loudspeakers.

Digital billboards

Unlike a traditional billboard which can only show one printed image, a digital billboard can change between different messages. Digital billboards are also considered more attractive than traditional ones, and people are more likely to notice them. Moreover, they can also be updated in real time.

Nowadays, digital billboards are common in many big cities around the world. It is hard to imagine places like Times Square in New York, Piccadilly Circus in London, or Shibuya in Tokyo without bright light adverts. Although they are growing in popularity, there have been concerns about their impact on the surrounding environment. Global light pollution is increasing each year. The constant light emitted by digital billboards often confuses birds, harms insects, and causes health problems in humans, too.

Public loudspeakers

In the past, public loudspeakers were used during the war to warn people of air attacks. Nowadays, they are still used in parts of Japan, the Philippines, and the US to alert people to natural disasters such as storms, earthquakes, and tornadoes. In Viet Nam, they are used to communicate important public announcements to residents. However, the noise from a city-wide loudspeaker system can be a problem to some people.

Answer 1

	Digital billboards	Public loudspeakers
Uses and advantages	change between different messages, attractive, can be updated in real time	In the past: warn people of air attacks. Nowadays: alert people to natural disasters, and communicate important public announcements to residents.
Problems	light pollution, confuses birds, harms insects, and causes health problems in humans	noise from a city-wide loudspeaker system affect some people
Places where they are used	New York, London, Tokyo	parts of Japan, the Philippines, the US, Viet Nam

Hướng dẫn dịch:

	Biển quảng cáo kỹ thuật số	Loa công cộng
Công dụng và ưu điểm	thay đổi giữa các tin nhắn khác nhau, hấp dẫn, có thể cập nhật theo thời gian thực	Trong quá khứ: cảnh báo mọi người về các cuộc tấn công trên không. Ngày nay: cảnh báo mọi người về thiên tai và truyền đạt những thông báo quan trọng đến người dân.
Các vấn đề	ô nhiễm ánh sáng, gây nhầm lẫn cho chim, gây hại cho côn trùng và gây ra các vấn đề sức khỏe ở con người	tiếng ồn từ hệ thống loa toàn thành phố ảnh hưởng đến một số người
Các địa điểm nơi chúng được sử dụng	New York, Luân Đôn, Tokyo	các vùng của Nhật Bản, Philippines, Mỹ, Việt Nam