WhenChina’sastronautZhaiZhigangcarriedoutthespacewalkon...
问题详情:
When China’s astronaut Zhai Zhigang carried out the spacewalk on September 27, he was wearing a spacesuit developed by Chinese scientists. Being worth more than 30 million yuan, the Feitian (飞天) spacesuit is not ___51___ ordinary one. It ___52___(take) Chinese scientists four years to develop it. But what is special about the suit? First Let’s take a look at why ___53___ (astronaut) need to wear spacesuits.
When you visit a world with little or no atmosphere, not ___54___ (wear) a spacesuit, the following things would happen:
You would become unconscious within 15 seconds because there is no oxygen.
Your blood and body fluids(液体) would “boil” and then “freeze” ___55___ there is little or no air pressure.
Your would receive various types of radiation.
You could ___56___ (hit) by dust or rock that moves at high speeds.
So, to protect you ___57___ these dangers, a spacesuit must:
*Have a pressurized atmosphere;
*Give you oxygen;
*Keep a(n) ___58___ (comfort) temperature;
*Let you see clearly and move easily.
The Feitian suit did all that and ___59___ it did made it like a mini-spaceship in ___60___ the astronaut stayed alive in outer space and carried out tasks.
【回答】
51. an 52. took
53. astronauts ...
54. wearing
55. because
56. be hit 57. from
58. comfortable
59. what 60. which
知识点:语法填空
题型:未分类
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Chinahasbeenpushingthereformofpublichospitals_______al...
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如图所示,细绳MO与NO所能承受的最大拉力相同,长度MO>NO,则在不断增加重物G重力的过程中(绳OC不...
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问题详情:下列各组词语中,没有错别字的一组是A.闲情逸致 声名鹊起 意气相投 金碧辉煌B.情随事迁 隐约其辞 夸夸奇谈 前赴后继C.梦寐以求 百折不挠 闻过饰非 惨淡经营D.言简意赅 言近指远 伸张正义 良辰...
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