unit-3-section-a-4a-4c-同步練習(xí)(詞匯完型閱讀練習(xí))魯教版英語八年級下冊(編輯修改稿)
2025-04-05 05:42 本頁面
【文章內(nèi)容簡介】 on, Chang’e4 will study the effect of solar winds on the lunar surface and any mineral found by the spacecraft. Chang’e4 is also carrying flower seeds, potatoes and silkworm eggs to see whether life is possible on the moon. If it is, then the moon will bee a possible choice for space travel in the future. However, research of the “dark” side isn’t easy. As the far side is blocked (阻斷) off from us, radio noise ing off Earth is also blocked. This is why China’s relay satellite (中繼衛(wèi)星) Queqiao was sent up in May, 2018. Thanks to Queqiao, the munication problem between Earth and Chang’e4 has been well solved.Power supply (電源供應(yīng)) is also a challenge to the task. Chang’e4 gets energy from the sun through its solar panels. As we know, a lunar day has the length (長度) of 28 Earth days. After Chang’e4 was sent up on December 8, 2018, it took the probe over 20 days to orbit the moon to be in a position to be able to land in moon daylight and use its solar panels. Luckily, everything goes well. Chang’e4 has worked on the “dark” side for over 5 months. It has sent back many photos of the far side of the moon and has been used to carry out some scientific experiments.The New York Times used the word “groundbreaking” to praise the task and wrote that “i
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