人教版 (2019)必修 第三册Unit 4 Space Exploration导学案

这是一份人教版 (2019)必修 第三册Unit 4 Space Exploration导学案，共3页。
B3U4 Space Exploration – 课外素材Listening Task (no more than 3 words for each blank)Chinese scientists have discovered 1._______________ types of glass material in lunar samples retrieved by the Chang'e-5 mission, including natural fiberglass, which has been found for the 2._____________ and could provide important support for future lunar base 3._______________, according to the Institute of Physics under the Chinese Academy of Sciences. The material, which includes spherical(adj.球形的), ellipsoidal(adj.椭圆体的) and dumbbell-shaped(adj.哑铃形的) glass beads(n.珠子), as well as colloidal(adj.胶状的) 4.____________ with a porous(adj.有气孔的) structure and sputtering(adj.溅射的) material in fluid form, have also been found. Researchers 5._____________________ and formation of a particular material, which originated from mineral melting and rapid cooling 6.__________________ meteorite(n.陨石) impacts on the lunar 7.____________. Through comprehensive analysis of the material's morphology(n.形态学), composition, microstructure, and formation, they discovered multiple mechanisms 8.________________ it was formed. The glass with a higher length-to-diameter ratio(长径比) was formed under 9.______________________ and speed when a meteorite impacted the lunar surface, reflecting 10.________________ events compared with the formation of glass beads which have a lower length-to-diameter ratio. Word Bank载人飞船 manned spacecraft着陆区 landing area月球车 lunar rover 交会对接 rendezvous and docking   出舱活动 extravehicular activities (EVAs); spacewalk货运飞船 cargo spacecraft登月舱 lunar module 失重 Loss of gravity中国航天日 Space Day of China（每年4月24日）我们的征途是星辰大海：Our Conquest is the Sea of Stars.  真题链接·2020全国卷IChina has become the first country to land a spacecraft on the far side of the moon. The unmanned Chang’e-4 probe (探测器) - the name was inspired by an ancient Chinese moon goddess -     61        (touch) down last week in the South Pole-Aitken basin. Landing on the moon’s far side is      62       (extreme) challenging. Because the moon’s body blocks direct radio communication with a probe, China first had to put a satellite in orbit above the moon in a spot      63      it could send signals to the spacecraft and to Earth. The far side of the moon is of particular      64        (interesting) to scientists because it has a lot of deep craters (环形山)， more so       65         the familiar near side. Chinese researchers hope to use the instruments onboard Chang’e-4      66      (find) and study areas of the South Pole-Aitken basin. “This really excites scientists,” Carle Pieters, a scientist at Brown University, says, “because it       67      (mean) we have the chance to obtain information about how the moon   68   (construct).” Data about the moon’s composition, such as how      69       ice and other treasures it contains, could help China decide whether       70        (it) plans for a future lunar (月球的) base are practical. Reading ComprehensionIn May 1989, space shuttle “Atlantis” released in outer space the space probe “Megallan,” which is now on her 15-month and one-billion-kilometer flight to Venus. A new phase in space exploration has begun.The planet Venus is only slightly smaller than Earth; it is the only other object in the solar system, in fact, that even comes close to earth’s size.Venus has a similar density, so it is probably made of approximately the same stuff, and it has an atmosphere, complete with clouds.It is also the closest planet to earth, and thus the most similar in distance from the sun. In short, Venus seems to justify its long-held nickname of “earth’s twin.”The surface temperature of Venus reaches some 900F. Added to that is an atmospheric pressure about 90 times Earth’s: High overhead in the carbon dioxide (CO2) that passes for air is a layer of clouds, perhaps 10 to 20 miles thick, whose little drops consist mostly of sulfuric acid (H2SO4).Water is all but nonexistent.Born with so many fundamental similarities to earth, how did Venus get to be so radically different: It is not just an academic matter.For all its extremes, Venus is a valuable laboratory for researchers studying the weather and climate of earth.It has no earth’s oceans, so the heat transport and other mechanisms are greatly simplified.In addition, the planet Venus takes 243 earth-days to turn once on its axis, so incoming heat from the sun is added and distributed at a more leisurely, observable pace.1. Venus is similar to Earth in ___________[A] size and density [B] distance from the sun [C] having atmosphere  [D] all of the above2. The greatest value in studying Venus should be to ____________[A] allow us to visit there     [B] understand Earth better [C] find a new source of energy    [D] promote a new space program3. The main idea of this passage is about.[A] problems of space travel     [B] scientific methods in space exploration[C] the importance of Venus to Earth   [D] conditions on Venus Fun-timeI’m VenusI’m the second planet from the sunAnd I’m the slowest rotating one of all the planets in our solar systemNow learn and have some fun243 earth days is how long it takes for me to orbit the sunThat makes just one of my daysI am 900 degreesYeah, that’s FahrenheitI’m the hottest planet in solar system, that’s rightThe sun sets in my east and come up in my westDue to retrograde rotation, I spin backwards the bestI’m the third brightest object to the naked eye from the planet of earthWhen you look up in the skyI am VenusI’m the second planet from the sunAnd I’m the slowest rotating one of all the planets in our solar systemNow learn and have some funCarbon dioxide and sulfuric acid clouds is what makes up my atmosphereAnd for this, I am very proudVolcanoes, mountains, craters and some big lava planesAre what make up my bumpy surfaceAnd my clouds make no rainI was named Venus, after the goodness of loveThe romans gave me my name due to my brightness aboveI am VenusI’m the second planet from the sunAnd I’m the slowest rotating one of all the planets in our solar systemNow learn and have some fun