Unit 4 Space Exploration Period One Listening and Speaking 课件（共53张）+学案（含答案）+练习（含答案）

Unit 4　SPACE EXPLORATION Period One　Listening and Speaking 【语言知识梳理】 词汇点睛 1.①mentally　②physically　③our physical and mental health　④being physically and mentally fit 2.①intelligence　②more intelligent　③Not only was he intelligentUnit 4　SPACE EXPLORATION Period One　Listening and Speaking Ⅰ.1.astronauts　2.procedure　3.mental　4.intelligent　5.facilities　6.centimetres Ⅱ.1.requirement　2.curiosity　3.intelligence　4.mentally　5.procedures　6.related　7.pulled　8.height　9.up　10.but Ⅲ.1.make a list of　2.in groups　3.in height　4.graduate from　5.not only; but also　6.are curious about　7.train for 8.First of all Ⅳ.A 【文章大意】 这是一篇说明文。文章主要介绍了如今宇航员在太空舱成功种植了生菜。这不仅能为宇航员提供营养,而且种植和照顾生菜也能促进宇航员的心理健康。 1.A　词义猜测题。根据画线词上文“Space travellers over the years have become used to certain foods such as freeze-dried ice cream and liquid salt and pepper.”可知,多年来,宇航员已经习惯了某些食物,再根据画线词下文“…with the first space-grown lettuce (生菜)found to be as safe, nutritious and fresh as the Earth-grown variety.”可知,现在宇航员的菜单上有了新的食物———生菜。由此推知,画线词augmented意为“增加”,与A项enlarged意思一样,故选A。 2.C　细节理解题。根据第二段中“Besides, for them, there may also be psychological benefits of growing and looking after plants.”可知,在太空种植生菜可以促进宇航员的心理健康。故选C。 3.B　推理判断题。根据第三段中“The vegetable production system is known as Veggie. It is composed of plant pillows (sealed units containing ceramic soil), LED lighting and a watering system that allows astronauts to inject water through a tube.”[蔬菜生产系统被称为Veggie。它由植物枕头(含有陶土的密封单元)、 LED 照明和一个允许宇航员通过管子注水的浇水系统组成。]可推知,蔬菜生产系统由三部分组成。故选B。 4.D　推理判断题。根据最后一段中“‘While we have nowhere to cook up there now, we can look forward to more things that taste fresh,’ Massa explained.”(“虽然我们现在没有地方烹饪,我们可以期待更多味道新鲜的东西,”马萨解释说。)可推知,在最后一段,Massa试图解释,她希望丰富太空舱种植的农产品品种。故选D。 B 【文章大意】 本文是一篇说明文,主要介绍了前往火星的旅程中,人类将会受到太空中的粒子辐射的影响。科学家认为,恰当的启程时间和合理的旅行周期将能确保宇航员的安全。 5.D　推理判断题。根据第一段的“One of them is the serious risk posed by particle radiation(辐射) from the sun, distant stars and galaxies (星系).”和第二段的“Answering two key questions would go a long way towards overcoming that difficulty…”可推知,第一段的作用是介绍人类前往火星需要克服的一个难题。故选D项。 6.C　词义猜测题。根据画线词后的from the radiation可知,此处表示前往火星的恰当时机能否保护宇航员和宇宙飞船免受辐射的伤害。由此可知,shield意为“保护”,与protect意思一致。故选C项。 7.B　细节理解题。根据第三段的“That is, humans should be able to safely travel to and from Mars, only if the spacecraft has enough protection and the round trip is shorter than approximately four years.”可知,人类安全地往返火星 ... ...