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Unit 2 Out of this world Welcome to the unit & Reading——高二牛津译林版(2020)选择性必修三课时优化训练 一、填写所给词的正确形式 1.The roof of the ancient temple caved in because of bad _ (maintain). 2.The reason for his _ (absent) was that he was occupied with his press conference duties. 3.There is convincing evidence of a link between _ (expose) to the sun and skin cancer. 4._ (devote) herself to the cause of science, she didn't have time to take care of her family. 5.With more importance _(attach) to traditional culture these years, hanfu has become increasingly popular. 二、完成句子 6.最近的研究使人们进一步了解了导致这种疾病的原因。(cast) Recent research has _ _ _ _ the causes of the disease. 7.最让我烦恼的是我应该在比赛中选择谁作为我的搭档。(bother;主语从句) _ _ _ _ was who I should choose as my partner in the competition. 8.在这种情况下,不告诉他有关这次事故的情况似乎更好。(circumstance) _ _ _, it seemed better not to tell him about the accident. 9.那条项链虽然很漂亮,但我们认为它太贵了。(让步状语从句的倒装结构) _ _ _ _ _, we thought it was overpriced. 10.在这次短暂的国事访问期间,一举一动都将有着极其重要的象征意义。(“be+of+n.”结构) Every gesture _ _ _ _ _ _ during the short state visit. 三、阅读理解 A What do Neil Armstrong, Ed White and today's astronauts have in common? They all wear a white spacesuit. Beyond NASA, space programmes in countries like Russia and China also use white suits. This basic colour has saved countless astronauts' lives. NASA didn't always have white spacesuits. Their very first manned spaceflight, Project Mercury, used silver suits, but none of those astronauts actually explored the vacuum(真空)of space. And that's the key because out there, spacesuitshave to be highly reflective. And the best colour for that isn't silver, but white. Here on Earth, our atmosphere protects us from 77% of the sun's radiation. But astronauts in space don't have that natural protection, making them easily hurt by extreme temperatures, severe sunburn, and even cancer-causing cell damage. So to prevent that, they wear white suits that reflect the sun's harmful radiation. But those white suits aren't the only garments in an astronaut's clos