How did ancient people keep time? One of the earliest ways was with a simple stick placed in the ground. The shadow(阴影) of the stick is different at different time. This special kind of"clock" was called a sundial(日晷). The Egyptians used it as early as 5,500 years ago. They al...
原句中的直接引语是疑问句“How did the ancient people build that stone bridge?”,改为间接引语时需将疑问词“how”保留,并调整语序为陈述句形式。主句动词“wants to know”为现在时,因此从句时态无需改变,但原直接引语中的助动词“did”需去掉,动词“build”需改为过去式“built”。最终间接引语为“how th...
I had a tight traveling budget as a student. Once, I set out with three male classmates on a boat trip from Wuhan to Nanjing. Needless to say, we were all broke and went for the cheapest fare available. We’d assumed we’d get some sort of berth; little did we know that our tick...
Although it is chilly outside in winter, we have heating systems to keep us warm indoors in most parts of North China, and in South China, they at least have air conditioners or electric radiators. But how did ancient people in Chin...
阅读理解. How did ancient people tell time? ◇Natural ways of keeping time In ancient time, people had to use the sun and the moon to tell time. They got up when the sun came up and worked in the fields until the sun went down. ◇Man-made things The
任务型阅读How did anciet people teil time?Natural ways of keeping time In ancient times, people had to use the sun and the moon to tell time. They got up when the sun came up and worked in the fields until the sun went down.Man-made things The sand clock was made of two glass ba...
和“When the water in the pot dripped out, marking inside the pot showed how much time passed.”可知,沙漏和水钟都是通过观察流走物质的数量来确定时间的。故选C。 (5)题详解: 主旨大意题。根据标题“How did ancient people tell time?”可知,本文主要介绍了计时的方法。故选C。
Inversion therapy: does hanging upside down help headaches? There is not enough evidence to support this idea. In fact, hanging upside down has been known to be fatal for some people if they stay upside down for too long. Inversion therapy can cause blood to collect in the brain, which ca...
where girls can be whatever they want to be and have examples to help them along the way. Famous women in history have been trailblazing for ages- from Lozen, a gifted warrior who was a shield to the Apache people, to Dr. Chien-Shiung Wu, who is known as the “First Lady of ...
“I would read submissions and not be able to help the writer because we couldn’t find a place for them on the list that I was acquiring for. And I kept feeling that there was something we could do on the Internet to really help writers each other.” 1. How did an author send ...