题型：阅读选择 题类： 难易度：普通
江西省九江市永修县第三中学2024-2025学年八年级上学期阶段二质量检测英语试卷
Swifts（雨燕）live mostly in the air. These small birds are among the fastest animals on Earth. In fact, swifts can fly two or three days without touching the ground! To get used to life in the sky, swifts use their speed and the saliva（唾液）in their mouths.
Swifts can fly faster than 100 miles per hour. That's because their wings are like boomerangs（回力镖）. This shape of the wings helps them to fly fast. They can also move one wing faster than the other, which allows them to make sharp turns without slowing down. Making fast, sharp turns helps swifts catch flying bugs to eat.
The saliva helps swifts catch bugs to feed their young. It is sticky, like glue. Swifts often fly into clouds of bugs such as mosquitoes and open their wide mouths to catch as many insects as they can. The bird collects insects in its mouth gradually and holds the insects in a sticky ball of saliva. One food ball can contain （包含）nearly 1, 000 bugs.
Swifts also use their saliva as glue to build their nests. The birds catch feathers in the air and stick the feathers together to build a strong nest. Swifts' short feet are not fit for walking or standing on land for long. But their sharp claws allow them to stick to rocks and walls so they can take a short rest before returning to the sky.
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We are all busy talking about and using the Internet, but do we know the history of the Internet?
Many people are surprised when they find that the Internet appeared in the 1960s. {#blank#}1{#/blank#} And the net among computers didn't work well. If one computer in the net broke down, then the whole net stopped. {#blank#}2{#/blank#} Inshould be good enough to be used by many different computers.
{#blank#}3{#/blank#} But, in the early 1970s, universities, hospitals and banks were allowed to use it, too. However, computers were still very expensive and the Internet was difficult to use. {#blank#}4{#/blank#} Scientists had also developed software that made" surfing" the Internet more convenient.
Today it is easy to get online and millions of people use the Internet to chat with each other every day. {#blank#}5{#/blank#} The Internet has now become one of the most important parts of people's life.
A. At first, the Internet was only used by the government. B. At that time, computers were large and expensive. C So a new net had to be built up. D. Sending messages by WeChat is more and more popular among people. E. By the start of the 1990s, computers became cheaper and easier to use. F. At last, the Internet was only provided by the government. |
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