e等公務園+學習平臺題庫解答

According to the video, the narrator says, “Dr. Yang focused on plentiful, recyclable aluminum, a metal with only one tiny drawback: no one had ever successfully used it to make a battery before.”

The word “drawback” in this sentence is closest in meaning to…

1. kickback
2. disadvantage
3. drawer
4. characteristic

According to the audio file, what does the narrator mean when he says, “There's just one catch.”

1. There is just one problem.
2. This is a one-time thing.
3. There is no replica.
4. There is just a ball to catch.

According to the video, the innovations of the aluminum battery made by Dr. Yang and his team are turning heads around the globe.

What does the phrase “turning heads around the globe” mean?

1. Dr. Yang and his team are turning their heads and circling a globe.
2. The innovations of the aluminum battery scare people away.
3. The battery is too big to move on to the stage, so people cannot see it.
4. Their surprising results capture people's attention around the world.

A battery is made of four key components: an anode, electrolyte, separator, and a cathode. The anode and cathode exchange ions via liquid electrolyte, generating electricity.

According to the audio file, what does the narrator mean when he says, “But can rethinking battery materials address a serious safety concern?”

1. Can altering the factory address lower the security barrier?
2. Can changing battery materials solve the serious safety problem?
3. Can applying reused materials arouse people’s safety awareness?
4. Can reorganizing the application materials help pass the safety review?

After watching the video, Cathy wants to share what she just learned with her friends. However, she cannot recall this part. Please help her fill in the blanks.

The Industrial Technology Research Institute invented aluminum batteries for three reasons. Number one, to use renewable energies to prevent the worsening of ______________. Number two, renewable energies are ______________. As a result, storage methods are necessary. Number three, because of the design of existing batteries, the cost of using renewable energy is extremely ______________. Moreover, some existing batteries are toxic or pose safety concerns.

1. global warming / unstable / high
2. economic recession / steady / expensive
3. global warming / stable / high
4. economic recession / unsteady / cheap

The production cost of aluminum batteries was very high in the early stage of their development, so mass production was impossible. However, after Dr. Yang’s team started to produce some of the electrolytes themselves, they markedly reduced the production cost. As a result, aluminum batteries have become fairly price-competitive compared to lithium batteries.

Aluminum batteries are not recyclable and toxic. This is because they are made of aluminum. There is scarce aluminum on earth, and it cannot be recycled and reused. Moreover, aluminum is a toxic material. Therefore, using aluminum batteries is not a good way.

Which sentence best describes the picture?

1. Before people use the aluminum battery, it needs to be cut open first.
2. Although the aluminum battery is cut open, it can even keep running without safety concerns.
3. When using the aluminum battery, we need to wear rubber gloves due to its toxicity.
4. Before getting rid of the aluminum battery, we need to cut it open and pour out the contents.

Aluminum batteries can recharge rapidly. Because they are produced by pairing up a graphitic-foam cathode with an aluminum anode, they can be charged in 60 seconds. This discovery opens up a world of possibilities for batteries.