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1、Unit 6Active Reading (1)2 1a 2b 3a 4b 5d 6a 7b 8a3 1 misfortune 2neutral 3frequency 4mathematical 5extend 6 vulnerable 7 subsequent 8encountered4 1 bumped 2 overlapped 3adjacent 4situated 5cluster 6 duration 51 a 2b 3 b 4 b 5b 7b 8b 9a 61 b 2e 3d 4c 5a Active Reading (2)3 1c 2c 3d 4c 41 Aliens2 Supe
2、rman 3 Empire of the Ants4 Star Trek: The Voyage Home5 The Day the Earth Caught Fire5 1.outdated 2. shifted; namely 3depressing; explosion 4.dreadful 5. proposal 61 revolve 2 inhabitants 3 generate 4baffling 5 hurl 6 reckless7 1a 2a 3b 4b 5a 8 2, 4, 5, 6, 8 9 1. Sometimes, but it is also intended fo
3、r entertainment. 2. People realize how important science is and are frustrated at how complex it is. Good communicators and simplifiers like popular science books are welcomed. 3. Yes, as well-liked as it is in Europe, if not more. People like reading popular science books and parents encourage thei
4、r kids to read such books. Language in use1 1. There is a possibility that the insurance wont pay you for this accident. 2. What happens to you isnt my responsibility. 3. Im not sure of the suitability of this program for you.4. The calculations complexity slowed me down. 5. Natural curiosity is a c
5、haracteristic of many great thinkers. 6. I was surprised at the stupidity of her behavior. 2 1 hands-free phone2 alcohol-free beer3 sugar-free sweetener4 traffic-free area5 lead-free petrol3 1 When it comes to evaluating students work, there are always some very difficult choices to be made. 2 When
6、it comes to the examples of bad luck you spoke about, many of these seem to be rather unimportant. 3 When it comes to human psychology, we see that this is very closely related to physical health and well-being. 4 When it comes to learning an instrument like the piano or violin, a lot of patience an
7、d the ability to persevere are essential. 5 When it comes to non-scientific studies of good and bad luck, there are all sorts of fantastic theories. 53D 打印技术在20 世纪80 年代首次出现在美国。3D 打印是按照数字模型打造任何形状的三维固体物件的过程。这是一个叠加过程，把材料层层覆盖，铸造出不同的形状。这项技术可用于产品的模型设计和分布式制造，能应用于珠宝、制鞋、工业设计、建筑、工程与施工、汽车制造、航空航天、医疗行业、地理信息系统、土木
8、工程和其他诸多领域。2015 年，美国硅谷的一家创业机构碳3D 公司开发了一项3D 打印技术，能让物体从液体介质中源源不断地生成出来，而不是像过去25 年里那样，靠层层叠加塑造物体。这项技术为3D 打印提供了一种全新的方法。未来学家认为，3D 打印标志着第三次工业革命的开始。6.In August 2008, Chinas first high-speed railway, the Beijing-Tianjin Intercity Railway, was opened, ushering China into an era of high-speed railway. In recent
9、years, in addition to achieving a series of major innovations and breakthroughs in key technologies, China has also developed a world-class high-speed railway technology system with independent intellectual property. With its advanced technology, cost-effectiveness and successful operating experienc
10、es in high-speed railway, China is witnessing an increasing export of its high-speed railway technologies and related products to many countries around the world. Chinas high-speed railway technology is finding its way in the world and is playing a positive role in promoting “the Belt and Road Initiative”.观察，旨在自然条件下，人们为一定目的而对事物所进行的有计划的知觉过程。观察法就是以感官活动为先决条件，与积极的思维相结合，系统地运用感官对客观事物进行感知、考察和描述的一种研究方法。
