. Originally, daylight saving time was started to save energy. During his time as a US ambassador... about saving fuel, so they changed the clocks to make greater use of natural light during work ……

later. In World War I, governments were concerned about saving fuel (燃料), so they changed the clocks... at the expense (以......为代价) of everyone’s sleep. And in fall, clocks are turned back an hour ……

?A.It is used everywhere in North America and Europe.B.People change clocks in summer and winter. C.People sleep one hour less when clocks are adjusted in spring. D.The American Academy of Sleep Medicine ……

their clocks back an hour every year to save energy (能源). When Daylight Savings Time ends it “makes... World War I and II because many countries wanted to save energy. After the wars ended, the US decided ……

, not exactly ...What happens is daylight saving time (夏令时). It is used to save energy (能源) and make...时). It is used to save energy (能源) and make better use of daylight during the summer. At the start of October ……

MOST Americans must have turned their clocks forward on Sunday. That simple act will give them an... named William Willett came up with a way to "make" the sun set later. His idea was to turn clocks ……

more hour of sunlight, you can save energy (能源). You don’t need to turn the lights on. Also, it can..., the daylight (白天) is short and darkness (黑夜) is long. To deal with this, these countries turn the clocks ……

better use of longer summer days and save energy. For example, with DST, people get up and go to bed... to change their clocks twice. They move forward by one hour (12 pm becomes 1 pm) on the last Sunday ……

became the first country to introduce DST to save energy. Several other countries, including the US...”, as CNN called it.This year, clocks in most of the US’ states were turned back an hour on Nov 5 ……

to save energy (能源) and make better use of daylight. One way to remember how it works is the saying... thanks to the end of Daylight Savings Time (DST, 夏令时).DST is used to save energy (能源) and make better ……

Green technologies can make your home more energy efficient, and save money during the economic downturn. ……

’t until World War I that Germany became the first country to introduce DST to save energy. Several... “change the time” themselves.Each spring, they put their clocks forward an hour and in the fall ……

, vases (花瓶) and clocks. They always look beautiful. But do you know who helps keep the old things.... It shows how craftsmen (工匠) repair (修理) old paintings, calligraphy (书法作品), clocks and bronze pieces (铜器 ……

of sunlight, you can save energy by not needing to turn the lights on. Also, it can help the economy (经济... as in the summer. To deal with this, these countries turn the clocks back one hour: 1 pm goes back to 12 ……

and one 25-hour day in autumn. The system is designed to save energy and match daylight hours to the times... is designed to save energy and match daylight hours to the times when most people are awake.   ……