题组集训10 灾害防范与宇宙探索 课后提升练（课件PPT）-【练客中考】2024年甘肃中考英语提优方案（人教版）

英语 课后提升练 1 课件使用说明 软件 使用 编辑修改 便捷操作 学科特色 本课件使用WPS2019版本制作，建议老师使用相应软件打开。 目录、返回目录、思维导图、几何画板等都有超链接，点击即可跳转至相应页面。 本课件全文可单击进行编辑修改。 公式由公式编辑器制作，可双击公式跳转到编辑页面进行修改。 2 题组集训十 灾害防范与 宇宙探索 Ⅰ. 阅读理解（共5小题；每小题2分，满分10分） 科学家致力创设“月球时区” （2023嘉兴改编）How could you tell the time if you aren’t anywhere on the Earth？ Scientists are now thinking of creating a lunar time zone（月球时区）. They believe it would be better for astronauts to communicate by using Moon Time， as they travel to， from， and across the Moon. At the moment， astronauts are using time zones of their own countries. But there could be safety problems caused by the differences in time-telling. 题组集训十　灾害防范与宇宙探索 返回目录 4 　▲　 Gravity（引力） influences how quickly or slowly time passes by. Since gravity is weaker on the Moon， clocks run a bit faster there. After 24 hours， a lunar clock would be 56 microseconds ahead of a clock on the Earth. Another point to consider is that a full day on the Earth is about 24 hours between two sunsets. While on the Moon， it is nearly 709 hours， about 29.5 Earth days. With all this to think about， scientists need to decide whether it would be better to follow a time zone on the Earth， or for the Moon to have its own special zone， which would have much longer days. 题组集训十　灾害防范与宇宙探索 返回目录 5 Scientists must contemplate other problems too. For example， who should be responsible for keeping the time zone going？ And how can it be made practical for astronauts to use？ （　 　）1.Scientists think that a lunar time zone can 　　　. A.keep the Moon clean B.keep astronauts healthy C.make the Moon trips safer D.make space travel faster C 题组集训十　灾害防范与宇宙探索 返回目录 6 （　 　）2.Which of the following can be put in the 　▲　？ A.Setting up a lunar time zone is not easy. B.Setting up a special time zone is important. C.Scientists are holding different opinions. D.Scientists need to do a lot of experiments. （　 　）3.If the Moon has its own special time zone， a full day of it can be about 　　　 on the Earth. A.56 microseconds B.24 hour