题型:阅读选择 题类:常考题 难易度:困难
浙江省嘉兴市桐乡市六校2018-2019学年八年级下学期英语期中联考试卷
As space science develops, man has learned more and more about space. Space is not only amazing but also dangerous. While working in space, spacemen are facing danger.
Scientists have found out that radiation(辐射) is the greatest danger to spacemen in space. When spacemen are working in space, they are in danger of radiation from the sun and other stars, which is bad for their health. Some special medicine may work a little, but there's no really helpful medicine.
Space junk is also thought a great danger to spacemen. It's reported that there are 9,000 man-made things flying in space. About 30% of these are man-made satellites(卫星),10% are spaceships, and the rest are space junk. An explosion(爆炸) in 1996 made a cloud of 300,000 fragments(碎片), each at least 4 mm in size, and even a small piece of these knocked against a spaceship window and did some damage. Scientists are working on helpful ways to do with space junk.
Although space is really dangerous, it interests everyone on the earth. In the near future, it may become usual for people to spend a few days in a space hotel. We may even choose to leave the earth and live in space for a few years. So we should care for space and do something to help improve the space environment.
Mobile Apps are part of our daily life. Here are some of the most popular Apps.
Ctrip is a booking (预定) App for traveling. It can be helpful when you find it hard to buy cheap plane tickets or train tickets. It can also help you book hotels at great prices. |
Baby Bus is a good friend for children under three years old. Kids can learn numbers with the help of this App. They can also learn speaking and drawing by it. |
For foreigners, Chinese is one of the most difficult languages to learn. Ninchanese can help them learn to read, write and speak Chinese while they're playing games. |
Tik Tok allows its users to watch, make and share videos. To make the video, users need to pick the background music from the App's music library first. After that, the App will record for 60 seconds(秒). |
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