擋不住的磁場【看紀錄片學英語 Game Show 夯科技】《解答》
題庫總數：10
是非題：3 (○：1、╳：2)
選擇題：7 (A：2、B：2、C：2、D：1)
多選題：0
是非題：3 (○：1、╳：2)
選擇題：7 (A：2、B：2、C：2、D：1)
多選題：0
1
Today, wind turbines are so efficient that they don't need 144 blades, they only need four for a wind turbine. This layout was first developed in England in the 1950s. England is a wind power pioneer. Today, more than 40 percent of its electricity comes from the wind.
- ○
- ╳正確答案
2
One of the first wind turbines ever built was in 1887, and it was massive. The rotor was 17 meters across. And it has 144 wooden blades. It was built by an American because he needed to power all of the electric lights in his massive mansion.
- ○正確答案
- ╳
3
The windiest place on earth is Antarctica. There the average annual wind speed is gale force. That's enough to knock you over.The phrase “knock sb. over” in this sentence is closest in meaning to…
- Apush sb. off正確答案
- Btip sb. over
- Ctopple sb. over
- Dbreak sb. down
4
Which of the following best describes the following picture?
- AWhen the wind is against the wind, the blades will not move.
- BWhen the wind blows from the left, the blades create drag.
- CWhen the wind passes over the blade, it generates a lifting force.正確答案
- DWhen the wind blows from top to bottom, the blades do not drop.
5
When lightning strikes a hollow turbine blade, it rapidly heats the air inside to over 30,000 ºC. The air expands explosively, and the blade shatters. To protect them, the blades can be fitted with a special defense, copper tips. So, it can attract lightning as well as dissipate heat as fast as possible.According to this paragraph, what does “it can attract lightning as well as dissipate heat as fast as possible.” mean?
- AThe wind turbines can be recharged with lightning through copper tips.
- BThe wind turbine can be protected by copper tips by dispersing high temperatures.正確答案
- CCopper tips will know which blade of a wind turbine needs to be charged.
- DCopper tips will collect the power of lightning to convert it to electricity.
6
According to the audio file about the battery of Formula E racing car, why does the narrator say, “the technology and the chemistry within them is a bit more bespoke”?
- AThe battery is the same as a normal battery.
- BThe battery can pass the message to users.
- CThe battery is said to be long-lasting.
- DThe battery is specially designed.正確答案
7
Here are some copper windings that carry the current, and these are wrapped around an iron core. Which of the following best describes the following picture?
- AThe current in the copper windings generates a magnetic field.正確答案
- BThe magnetic field is a racetrack for Formula E racing.
- CThe magnetic field can efficiently attract foreign objects on the track.
- DThe advice helps the rotating magnetic field automatically generated.
8
In the 1900s, there were more electric cars than cars that ran on gasoline. The first car race in America was held in 1895 between two electric cars and four gasoline-powered cars. None of the four gasoline-powered cars managed to finish.
- ○
- ╳正確答案
9
Without a gas-guzzling engine, a Formula E racing car needs another energy source. Which of the following best describes the following picture?
- AAs the heart of the car, the mega batteries can move the car alone.
- BThe electricity from the battery is converted into the motor system to move the car.正確答案
- CThe motor system and the mega battery can individually offer power.
- DAs the helper of the batteries, the motor can offer electricity to strengthen the power.
10
This is a Formula E racing car. Weighing in at just over 800 kg and with a maximum speed of 225 kph. It may look like a Formula One car, but once you see the mechanics the similarities quickly end, and something revolutionary emerges.According to this paragraph, what does the host mean when he says, “something revolutionary emerges”?
- AFormula E racing car is about to be eliminated.
- BThe world's values will be turned upside down.
- CThe technology of the car has made great progress.正確答案
- DThe speed of the car has not improved significantly.