亚洲免费av电影一区二区三区,日韩爱爱视频,51精品视频一区二区三区,91视频爱爱,日韩欧美在线播放视频,中文字幕少妇AV,亚洲电影中文字幕,久久久久亚洲av成人网址,久久综合视频网站,国产在线不卡免费播放

        ?

        First All-Female Spacewalk

        2020-10-26 02:25:46王振祥選編
        考試與評價·高一版 2020年1期
        關(guān)鍵詞:最佳答案短文內(nèi)容

        王振祥 選編

        Astronauts Christina Koch and Jessica Meir made history on Friday when they climbed into spacesuits and left the International Space Station to perform a spacewalk. It was the first time a spacewalk has been conducted by two women.

        A spacewalk, in this case, is when astronauts go outside the International Space Station. Usually, spacewalks are done to make repairs or do maintenance work.

        The two astronauts needed to swap out a large battery that had failed. They replaced it with a new one. Koch and Meir are two of six astronauts who are currently living and working in space on board the International Space Station. It was Koch's fourth spacewalk (she has spent a total of 27 hours, 48 minutes on spacewalks). It was Meir's first spacewalk. Koch and Meir began their spacewalk at 7:50 a.m. It lasted seven hours and 17 minutes.

        Every aspect of the job is done slowly and carefully, with nothing left to chance. NASA's controllers on Earth even knew how many turns of the screwdriver it would take to undo or replace each screw.

        The spacewalk was streamed live on NASA's YouTube channel, with Brandi Dean, NASA's public affairs director, explaining what the astronauts were doing and answering questions posted on Twitter.

        Astronauts train on Earth for spacewalks in a “neutral buoyancy lab”, which is an enormous swimming pool with a mock-up of the space station in it. Astronauts also train using virtual reality and use a system with pulleys that makes it feel like they're in micro-gravity, Dean said.

        The astronauts wore space suits that are bulky; they would weigh about 300 lbs on Earth. The suits act as a type of “personal space station”, a NASA representative said on the live stream.

        It took the pair three and a half hours to swap out the battery unit. The astronauts then performed other maintenance tasks as well.

        根據(jù)短文內(nèi)容,選擇最佳答案。

        1. Why were Astronauts Christina Koch and Jessica Meir reported to make history?

        A. Because it was their first time to perform a spacewalk.

        B. Because the task they completed was extremely challenging.

        C. Because they became the first women to work in the International Space Station.

        D. Because they were the first females to have conducted a spacewalk without males.

        2. Which of the following can replace the underlined phrase “swap out” in Paragraph 3?

        A. Change. ? ? B. Repair. ? ? C. Unload. ? ? D. Turn out.

        3. What do we know about these two women's spacewalk on Friday?

        A. It started at 8 sharp in the morning.

        B. It came to an end at 15:07 the next day.

        C. It was broadcast live on TV and the Internet.

        D. It was carefully planned and prepared by NASA.

        4. What does the author intend to do in the 6th paragraph?

        A. Add some background information. B. Introduce a new topic for discussion.

        C. Explain how they were chosen out. D. Summarize the previous paragraphs.

        猜你喜歡
        最佳答案短文內(nèi)容
        內(nèi)容回顧溫故知新
        最佳答案
        Notes
        70 Days in a Lifeboat
        The Best Time to Visit Israel
        Keys
        主要內(nèi)容
        臺聲(2016年2期)2016-09-16 01:06:53
        短文改錯
        短文改錯
        短文改錯
        日本一二三区视频在线| 日本一区二区在线看看| 国产午夜精品视频观看| 欧美激情一区二区三区成人| 免费无码又爽又刺激聊天app| 伊香蕉大综综综合久久| 午夜亚洲精品一区二区| 中文字幕亚洲乱码成熟女1区| 亚洲精品熟女国产| 国产一毛片| 人妻中出中文字幕在线| 我和隔壁的少妇人妻hd| 国产在线一区二区三区av| 色www亚洲| 国产一区二区三区白浆肉丝| 亚洲av乱码一区二区三区林ゆな| 国产在线精品欧美日韩电影| 日韩精品一区二区三区毛片| 国产在线观看女主播户外| 久久综合狠狠综合久久综合88| 无码人妻丰满熟妇啪啪7774| www久久久888| 国产精品国三级国产a| 亚洲欧美日韩在线不卡 | 日本无码欧美一区精品久久| 国产午夜无码视频免费网站| 水蜜桃视频在线观看免费18| 日韩三级一区二区三区| 国产女人高潮视频在线观看| 国产精品午夜波多野结衣性色| 亚洲av毛片在线播放| 人人妻人人澡人人爽欧美一区双| 97久久久久人妻精品专区| 色偷偷亚洲av男人的天堂| 蜜桃一区二区在线视频| 精品国产人妻一区二区三区| 青草蜜桃视频在线观看| 日韩一区二区三区熟女| 狠狠躁天天躁中文字幕 | 亚洲毛片免费观看视频| 国产网红主播无码精品|