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1、2022年吉林省长春市大学英语6级大学英语六级知识点汇总（含答案）学校:_ 班级:_ 姓名:_ 考号:_一、2.Reading Comprehension (Skimming and Scanning)(20题)1.To enhance creativity, people should always learn something new.A.Y B.N C.NG2.He expects an exotic study with freshwater worm from the Antarctic which can _ to yield results which will help to
2、 understand how mirror-image twins develop.3.Prison terms to be served on weekends only are _.4.The popularity of Grand Theft Auto 3 will stimulate producers to invest more violent videogames because they are _.5. Each federal urban search-and-rescue task force is made up of at least 60 members.6.Be
3、sides the feature of doing more with less, the spherical structure of dome can also allow natural _ without obstruction.7. According to the passage, one health benefits of walking is that_.A.your bone density will be decreasedB.you will lose weight in an easy and quick wayC.you will enjoy better hea
4、rt conditionD.you will have stronger upper body muscles8.Attending school at an early age may cause more school-related problems.A.Y B.N C.NG9.E-wasteIn Australia weve seen rapid uptake of new technology, from VCRs to personal organizers to DVD players. Culturally, were somewhat proud of our techno-
5、savvy attitudes. We feel that it reflects our willingness to accept, rather than resist, change. Australia is currently one of the top ten countries using information and communication technology, ranking tenth in the world for spending per capita and fifth in the world for spending as a percentage
6、of gross domestic product. In short, we love spending money on gadgets.However, with the constant drive to have the newest and latest products comes the inevitable wastage of the old products they replace. Obsolete electronic goods, or e-waste is one of the fastest growing waste types and the proble
7、m of e-waste is global. New electronic equipment technology is constantly being developed, there is rapid adoption of this technology and there is an increasing speed with which this technology reaches obsolescence (作废；过时).Andy, a 30-year old PR officer, bought her first computer in 1994. 2200 got h
8、er a 486 PC package with a color ink jet printer. The last 9 years and various employers have seen Andys main computer change 5 times. Each computer has sat on her desk for an average of only eighteen months.There are an estimated 9.2 million computers in use around Australia. It is expected that ov
9、er this year a further 2.1 million computers will enter the market, while 3 million will reach the end of their life. This amounts to thousands of tons of e-waste made up of obsolete computers along with broken monitors, used toner, modems, printers and a range of other peripherals (外围产品) and consum
10、ables. The question is Where have Andys and the rest of Australias unwanted computers and IT waste gone?Garage daysSo just what do you do with a computer that you no longer need? Give it away? Trash it? Recycle it?I paid a few hundred to get a Pentium processor and modem for my old 486 so that I cou
11、ld use the Internet at home, says Andy. Eventually, I no longer needed it. Even with the upgrades I couldnt give it away. No one wanted it.Andys 486 sat in her garage for four years before she gave it to Computer bank, a Melbourne-based not-for-profit organization that recycles computers and donates
12、 them to disadvantaged and community groups. Andy is not alone. It is estimated that in 2006 there will be around 1.6 million computers disposed of in landfill, 1.8 million put in storage (in addition to the 5.3 million already gathering dust in garages and other storage areas) and 0.5 million recyc
13、led in Australia alone.Why is e-waste a problem?In Australia were reasonably good at recycling through council collections. The materials collected through curbside collections are largely simple materialssuch as glass, aluminum and mixed paper that can be sorted and resold on the commodity market.
14、The difficulty with electronic waste and many other products is that they are made from a huge range of component materials that are useless for further manufacture until the product is dismantled and the component materials are separatedoften a very difficult and expensive process.Computers and oth
15、er electronic equipment are made from hundreds of different materials. Many of these materials are inherently valuable, such as gold and platinum, and many are non-renewable. If they can be extracted they can be reused in manufacture again as a secondary raw material.There are also some nastiness in
16、 e-waste. Heavy metals including lead, cadmium, mercury and arsenic are used in electronic equipment. When disposed of they can leach from landfill tips into the water table. Printer inks and toners often contain toxic materials such as carbon black and cadmium. It is these environmental health implications th
