本期报纸学案共3页：  1  2  3

 

2021-22学年度第19-20期总第856期 (3版)

‘Beeting’ infection (Page 3)

 

I. Decide whether the following sentences are true or false.

1. Dasia Taylor majors in science and medicine.    (         )

2. Dasia Taylor’s invention is the first material created that can detect changes in wounds. (         )

3. Dasia Taylor tested ten materials to find the perfect one. (         )

4. Dasia Taylor’s suture changes color immediately when a wound is infected.    (         )

 

II. Answer the following questions.

1. What motivated Dasia Taylor to design the sutures?

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2. What did Dasia Taylor find cost many lives in developing countries?

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3. Why did Dasia Taylor choose beets?

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4. What can the blend of cotton and polyester do?

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III. Translate the following sentences with the given expression.

1. 雨林正以惊人的速度消失。（alarming）

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2. 多年以后我才知道他去世的消息。（learn of）

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3. 志愿者们正在专家的指导下修复这座建筑。（under the guidance of）

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参考答案：

I. 1-4 FFTF

II. 1. Female doctors’ courage to deal with challenges in Grey’s Anatomy.

2. Post-surgical infections.

3. Because human skin’s pH level increases to about 9 when a wound becomes infected, and bright red beet juice turns dark purple at a pH of nine. So when the suture thread containing beet juice changes color, patients will know their wounds are infected and seek medical attention

4. It can hold the dye and the dye in it changes color when the pH level increases.

III. 1. The rainforests are disappearing at an alarming rate.

2. I didn’t learn of his death until many years later.

3. Volunteers are restoring the building under expert guidance.

本期报纸学案共3页：  1  2  3