Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 44 to 50.
Right now, an important transformation has already begun and it looks like it will continue for years to come. China is a country where the population is in movement. At the moment, less than half the population of China lives in cities, but that situation is changing and it is changing fast.
Traditionally, the majority of the population of China has lived in quiet, rural areas. But industry is growing so fast that there is constant need for new workers in the city, in factories, construction sites, shops and offices. Until recently there was no need to build such enormous cities in China. But now there is an urgent need to build, to build big, tall and fast.
Few Chinese people live in detached or semi-detached houses. So, many large blocks of flats have appeared in the suburbs of these new Chinese megacities to accommodate the new arrivals. Day by day, these lively new megacities keep expanding. As cities increase in size, they eat up historic old buildings and invade the quiet villages nearby.
Luckily, China has already realised the impact that megacities could have on the environment. So they have started designing and building new 'eco-cities'. In these eco-cities there is an emphasis on clean, renewable energy. For example, in one eco-city engineers have just started work on the construction of the world's tallest and greenest skyscrapers, the Phoenix Towers. The idea of these stunning towers is to use solar power for electricity and to collect rainwater for the use of the residents. Hopefully, with plans like this China's megacities can be attractive, clean, modern and good for the environment.
(Adapted from Gateway)
