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A skywell, or “tian jing”, is a typical feature of a traditional home in China. Different from a northern Chinese courtyard, or “yuan zi”, a skywell is smaller and less exposed to the outdoor environment. They are commonly seen in homes 【小题1】 (date) to Ming and Qing dynasties, which were designed to house 【小题2】 (generation) of an extended family.
Although a skywell’s size and design vary from region to region, it is always rectangular and located in the core of a house, 【小题3】 enclosed by rooms on four sides or three sides plus a wall. Skywells were designed to cool buildings before air-conditioning existed. When wind blows above a skywell house, it can enter the indoor space through the opening. Outdoor air being often cooler than indoor air, the incoming breeze 【小题4】 (travel) down the walls to the lower storeys, creating air circulation by replacing 【小题5】 (warm) indoor air, which rises and leaves through the opening.
The main purpose of a skywell is to allow in light, improve ventilation （通风） 【小题6】 harvest rainwater. In Huizhou, a skywell is small but tall, and the rooms around it can block out sunlight on hot days, enabling the bottom of the skywell to stay cool. Meanwhile, hot air inside the house can rise and escape through the opening above the skywell, 【小题7】 works just like a chimney.
Though they have been existing in China for hundreds of years, in recent times they 【小题8】 (forget) by people who prefer modern facilities. Over the past two decades, however, 【小题9】 consequence of a renewal of traditional Chinese architecture, skywell buildings have been making 【小题10】 comeback.
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