36. B 细节理解题,由第一段的For over a hundred years, right from the time when airplanes were invented, people have been working on inventing a "flying car".可知,发明会飞的汽车的想法产生于100多年前,即20世纪初,故选B. 37. B 细节理解题,根据第二段的It would have to be light enough to...
Unit 6 When was it invented? (基础) 语法填空 A The first bike appeared over 200 years ago. At that time it 1.___(call) “the horse on wheels”. 2.___(late), the bike became very popular. People liked bikes 3.___ they were not as expensive as horses. They woul...
moderncomputerwasinventedinAmericain1946.Itwasasbigasaroom.Itimprovedthespeedandexactitude(精确性)ofcalculation(计算).Inthe1950s,desktopcomputerswereinventedinthesamecountry.Theybecamesmallerandcouldbeputonthedesk.Sincethen,theyhavebecomeveryimportantinmanyfieldsofworkandleisure.Beforethe1970s,thecomputerswere...
Unsurprisingly, transportation is a major component of travel and tourism. Learn more about the forms of transportation we rely on for travel, including airplanes, automobiles, trains, ships, and boats. Related to this Question When was the first airplane invented?
Most houses were also built facing south or west so that the rooms were able to get enough sunshine in winter and keep cool in summer. ③ In modern times, humans didn’t follow the laws of nature during fast development. Luckily, it’s never too late to make changes. ④ Green ...
Describe a modern pencil.3. How do people make pencilstoday?4. What kind of pens did people write with after feather pens?5. Why was a fountain pen better than the old pens?6. Who invented the ballpoint pen?7. Where were the inventors of the ballpoint pen from?8. Why is a ...
19.Zippersarewidelyusedinour___nowandtheywereinventedattheendofthe19thcentury. 20.Movies___weremadein1926inAmerica. 第二部分(笔试共90分) Ⅲ.完形填空(共20小题,计20分) 第一节: Onceuponatime,therewasascientist.Hewantedtostudy__21__.Theninthelaboratoryhe__22__twopeanuts(花生)intoatallglassb...
Today,theusesofaluminumareinnumerable.Perhapsitsmostimportantuseisintransportation.Aluminumisfoundintheengineofautomobiles,inthehullsofboats.Itisalsousedinmanypartsofairplanes.Infact,thehuge“airbus”planeswouldprobablyneverhavebeenproducedifaluminumdidnotexist.Bymakingvehicleslighterinweightaluminumhasgreatlyreducedtheam...
Two Hungarian brothers, Ladislao and Georg Biro, invented the ballpoint pen. English pilots liked the pens. They couldn’t write with fountain pens in airplanes because the ink leaked out. Later, a French company called Bic bought the Biros’ company. Some people call ballpoint pens “Bics.”...
When was the modern computer invented? When was the first window air conditioner invented? When was the first wheel invented? When was the school bus invented? When was the safety bicycle invented? When was the first dirt bike invented? When were guitars first invented? When was the first tr...