2018年北师版选修7 Unit 20 Section Ⅰ Warm

Unit 20 New Frontiers

见过这样的汽车吗？不“喝”汽油，专“吃”咖啡渣。跟着下面的文章，一起体验一下这种新型环保汽车吧！

If you've ever wondered what people could do with those annoying used coffee grounds，engineers in the UK have come up with an answer：use them as gas for your car!

Engineer Martin Bacon and a group of

volunteers from Teesdale Conservation in Durham，England，have been hard at work making those coffee grounds into something special：gas for a speedy coffee-powered car.

The car ran entirely on coffee grounds and broke the world speed record for a car powered by organic waste.The coffee car，an adapted Rover SD1，averaged 66.5 mph，breaking the previous record of 47 mph achieved by a U．S.team which built a car fuelled by wood pellets.

Engineer Martin Bacon，with his team，removed all the equipment from the old car and refitted it with an onboard wood gas generator system，which turns waste coffee grounds into energy to drive the engine.Mr.Bacon said the car could run 100 miles on 10 kg of coffee grounds，collected from two local cafes.

The car is not the first to be powered by coffee，though Mr.Bacon and his team based the design of the Rover on a white coffee-powered Volkswagen

Scirocco built for the BBC's science show Bang Goes The Theory.That car was driven from London to Manchester in March 2010 and it now holds the Guinness World Record for the longest distance driven by a car powered by waste material.

Host of Bang Goes The Theory explained that the cars demonstrate an alternative to powering engines using petrol.One day，when a strong cup of coffee

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wakes you up in the morning，you can use the coffee grounds to drive to work.

1．grounds n． 2．organic adj. 3．word pellets 4．generator n. 5．demonstrate vt.

渣滓 有机的 木质颗粒燃料 发动机 说明；证实

1．What fuel is used to drive the engine of a car built by a U．S. team? ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ 2．How far can the car run with 20 kg of coffee grounds to power?

________________________________________________________________ ________________________________________________________________ ________________________________________________________________ 【答案】 1.By wood pellets. 2.200 miles.

Section Ⅰ Warm-up & Futurology－

Preparing

根据提示写出下列单词

1．____________ n． 质量；物质 2．____________ n. 3．____________ n. 4．____________ vt. 5．____________ adj. 6．____________ n.

放射；辐射 全体机组人员 帮助；协助 技术上的 消遣；娱乐

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7．____________ n. 后者 8．____________ n. 事业；企业 9．____________ vi. 点击 10．____________ adj. 方便使用的 11．____________ adv. 不久；很快 12．____________ vt. 下载 13．____________ vt. 更新 14．____________ adj. 无污迹的 15．____________ adj. 磨损的 16．____________ n. 饥饿 17．____________ n. 歧视；识别力 18．____________ n. 争执；冲突 19．____________ n. 平等 20．____________ vt. 评估；评价 21．____________ adj. 电子的 22．____________ n. 开端；拂晓 23．____________ adj. 数字式的 24．____________ n.

专家

【答案】 1.mass 2.radiation 3.crew 4.assist 5.technical7.latter 8.enterprise 9.click 10.handy 11.shortly 12.download

13．update 14.stainless 15.worn 16.starvation 17．discrimination 18.conflict 19.equality

20．assess 21.electronic 22.dawn 23.digital 24.specialist

根据提示补全下列短语 1．look ________ 调查；了解；向里看 2．be based ________ 以??为基础 3．________ peace 平静地 4．carry ________ 实施；执行 5．link...________...

把??连接起来??

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6.recreation 6．________ fun 7．live ________ 8．die ________ 9．________ longer 10．be suitable ________

开玩笑地；闹着玩地

继续生活或存在；以??为主食 死于 不再 适合

【答案】 1.into 2.on 3.in 4.out 5.to 6.for 7．on 8.of 9.no 10.for

根据提示补全下列教材原句

1．By the year 2015，the clothing industry will have produced new types of material that will remain stainless ______________ you spill on them.

到2015年，服装行业将生产出新型的材料，不管你将什么东西洒在这些材料上，都不会留下污点。

2．Red wine stains will no longer ruin clothes.Garments will also be ________________ they will never get old or worn.

红酒渍将不再毁掉衣物。衣服也将会结实耐穿，永远不会变旧或磨损。 3．Tiny，insect-like robots may be sent around the cells of our bodies to assess our health and carry out repairs to ________________.

人们可以把微小的、形似昆虫的机器人放置于人体的细胞周围，让其评估我们的健康状况和进行修复工作，以维持我们的健康。

4．By the year 2030，development in biochemistry and medical science will have __________________________ for at least 150 years.

到2030年，从理论上讲，生物化学和医学的发展将使人类活到至少150岁成为可能。

5．By the middle of the century，computers that are __________________ us will have been developed.

到本世纪中叶，比人类还要聪明几百万倍的计算机就会问世。

【答案】 1.no matter what 2.so strong that 3.keep us healthy 4.made it theoretically possible for us to live 5.millions of times smarter than

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