《实用大学英语综合教程1unit6scienceandtechnology》由会员分享，可在线阅读，更多相关《实用大学英语综合教程1unit6scienceandtechnology（57页珍藏版）》请在金锄头文库上搜索。
1、Unit 6 Science and Technology,Content,Background Lead-in Text A analysis Text A translation Text A tasks Text B translation Text B tasks Grammar tasks,Background,The earth is from inside to outside our solar system, but also the third planet in the solar system, quality and density biggest diameter
2、of earth-like planets. It also is often called the world. A word of English Earth Earth from Old English and Germanic. Earth has 44 46 billion years old, and have a single natural satellite the moon with 30 days surrounding earth, and the earth the cycle of rotating the cycle of nearly 24 hours in o
3、ne year cycle rotation and revolution around the sun. Disney set the documentary.,Background,Actually, it only have 8 planets that orbit the sun are (in order from the sun): Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. The solar system has a peculiar circumstance , that is that Mer
4、cury , Venus , the earth , Mars , Saturn , Jupiter , Uranus , Neptune and Pluto almost go ahead in a straight line.,LEAD-IN,Discuss the following questions in groups Are you interested in the space? And do you know some knowledge about the space? Its an open question.Say something related to the spa
5、ce, such as the name of the planet, some astronauts and etc. Do you know their Chinese names? Mercury, Venus, Mars, Jupiter and Saturn 水星，金星，火星，木星和土星,LEAD-IN,How many things do you know about Mars? Mars is the fourth planet from the Sun and the second smallest planet in the Solar System. Mars can ea
6、sily be seen from Earth with the naked eye. And etc. Whether does life currently exist on Mars, or has existed there in the past? it remains an open question whether life currently exists on Mars, or has existed there in the past.,Text Appreciation,Text A Analysis 1. Developing paragraphs by example
7、s 2.translation 2. tasks Text B Analysis 1. translation 2. tasks,Text A Analysis,Para.1,Named after the Roman god of war, it is often described as the “Red Planet“, as the iron oxide prevalent on its surface gives it a reddish appearance. Name after以的名字起名 e.g. 1)The machine is named after its invent
8、or. 这台机器是以其发明者的名字命名的。 2)In western countries, a woman takes her husbands last name after her marriage. 在西方国家，女子一般都会在婚后把自己的姓氏改成丈夫的姓氏。,Para.1,iron oxide铁矿石，氧化铁 reddishadj. 淡红色的，微红的；混有或染有红色的 e.g. 1)He stirred the coffee until it was a light reddish-brown. 直到咖啡成红褐色，他才停止搅拌。 2) He stained the wood reddish
9、-brown. 他给木头涂上了红褐色。,Para.1,Named after the Roman god of war, it is often described as the “Red Planet“, as the iron oxide prevalent on its surface gives it a reddish appearance. name after以的名字起名 e.g. 1)The machine is named after its inventor. 这台机器是以其发明者的名字命名的。 2)In western countries, a woman takes h
10、er husbands last name after her marriage. 在西方国家，女子一般都会在婚后把自己的姓氏改成丈夫的姓氏。,Para.1,Mars is a terrestrial planet with a thin atmosphere, having surface features reminiscent both of the impact craters of the Moon and the volcanoes, valleys, deserts, and polar ice caps of Earth. terrestrial adj. 类地行星的 impa
11、ct craters 陨石坑 陨石坑是行星、卫星、小行星或其它天体表面通过陨石撞击而形成的环形的凹坑。陨石坑的中心往往会有一座小山，在地球上陨石坑内常常会充水，形成撞击湖，湖心有一座小岛。,Para.1,polar ice caps 极地冰冠 冰冠是一种规模比大陆冰盖小，外形与其相似，而穹形更为突出的覆盖型冰川。在压力不均匀情况下，冰体内的冰从中心向四周呈放射状漫流。它是大陆冰盖和山岳冰川的过渡类型。,Para.1,The rotational period and seasonal cycles of Mars are likewise similar to those of Earth.
12、rotational period 自转周期 在天文学上，自转周期是一个天体沿自转轴自转一周所需的时间。 likewise adv. in like or similar manner;同样地；也，而且 e.g. 1)Her speech and her manner likewise upset me. 她的言谈使我心烦意乱，她的举止也一样。 2)Mary must go home now, and Alden likewise. 玛丽现在要回家，奥尔登也要回去。,Para.1,be similar to与相似 e.g.1) A cat is similar to a tiger in ma
13、ny respects. 猫和虎在很多方面相似。 2)My opinions are similar to his. 我和他的看法相似。,Para.2,Optical ground-based telescopes are typically limited to resolving features about typically adv. in a typical manner; 典型地；代表性地；通常 e.g. 1) It typically takes a day or two, depending on size. 一般需要一到两天，取决于其规模。 2) Female migrant
14、s are typically very young. 女性移民通常都非常年轻。,Para.3,Mars has approximately half the diameter of Earth. It is less dense than Earth, having about 15% of Earths volume and 11% of the mass. approximately adv. (of quantities) imprecise but fairly close to correct近似地，大约；许 e.g. 1)Our English teacher is approx
15、imately in her forties. 我们英语老师有40岁模样。 2) There are approximately 12 million migrants with their dependants living in the EU countries. 大约有1200万流动工人带着家属居住在欧盟诸国。,Para.3,It is less dense than Earth, having about 15% of Earths volume and 11% of the mass. dense dens adj. permitting little if any light to
16、 pass through because of denseness of matter 密集的，稠密的； e.g. 1) The danger of shipwreck is much greater in dense fog. 在浓雾中船只失事的危险要大得多。 2) The general ambushed his troops in the dense woods. 将军把部队埋伏在浓密的树林里。,Para.3,While Mars is larger and more massive than Mercury, Mercury has a higher density. densitydensiti n. 密度； e.g. The population density of that country is 685 per square mile. 那个国家的人口密度为每平方英里685人。 Mercury英 mkjri n. 水星中国古代称为辰星，是太阳系中的类地行星，也是岩态行星，其主要由石质和铁质构成，密度较高。
