Question

【題目】 Infrared thermometers（紅外溫度計(jì)）, or temperature guns, have been widely used to detect（檢測）the early symptoms of COVID-19. They allow us to measure（測量）temperatures quickly. How do these thermometers work?

They determine temperature by measuring the energy coming from your skin （皮膚）. Everything in nature has molecules （分子） inside of it that are always moving around. This include our skin. The higher the temperature is, the faster the molecules move. The molecules give off infrared light while moving.

This kind of light can be focused or absorbed（吸收）. The thermometers use a lens（鏡頭）to focus infrared light from the skin onto a detector called a thermopile（熱電堆）. The thermopile absorbs the infrared radiation and turns it into heat. The electronic sensors inside the thermometers can measure the heat and read the temperature of the skin after making some calculations （計(jì)算）.

However, you might sometimes find that the results aren’t always accurate （準(zhǔn)確的）. It depend on how these devices are used. For example, how far away they are held from the body, how steadily they are held and for how long. Factors such as make-up and sweat will also affect the results.

【1】Temperature guns, have been widely used to detect （檢測）the early symptoms of____________.

A.COVID-17.B.COVID-18.C.COVID-19.D.COVID-20.

【2】They determine temperature by measuring the energy coming from your____________.

A.skinB.headC.faceD.foot

【3】The electronic sensors inside the thermometers can measure the heat and read the____________ of the skin.

A.colorB.temperatureC.lightD.structure

【4】Which one of the following might not affect the accurate results?

A.The thermometers is too far from the body.

B.The thermometers is held for very long.

C.Make-up and sweat.

D.The thermometer is held steadily at the right time.

Answer 1

【答案】

【1】C

【2】A

【3】B

【4】D

【解析】

這是一篇說明文，文章介紹紅外溫度計(jì)的使用原理，以及影響測量結(jié)果的因素。

【1】

細(xì)節(jié)理解題。根據(jù)第一段“Infrared thermometers, or temperature guns, have been widely used to detect the early symptoms of COVID-19” 可知是檢測新型冠狀病毒的早期癥狀，故選C。

【2】

細(xì)節(jié)理解題。根據(jù)第二段“They determine temperature by measuring the energy coming from your skin”測量來自你的皮膚的能量。故選A。

【3】

細(xì)節(jié)理解題。根據(jù)第三段“The electronic sensors inside the thermometers can measure the heat and read the temperature of the skin after making some calculations”可知讀取皮膚的體溫。故選B。

【4】

推理判斷題。根據(jù)最后一段“It depend on how these devices are used. For example, how far away they are held from the body, how steadily they are held and for how long. Factors such as make-up and sweat will also affect the results”影響因素有拿得離身體有多遠(yuǎn)，拿得有多穩(wěn)當(dāng)和多長時(shí)間；化妝和汗也會(huì)影響結(jié)果。不影響的是D選項(xiàng)。故選D。