Question

When you get a cut, you cover it with a bandage. How do you know when to change it? Maybe you just wait until it’s wet or dirty. But when people have long-term or chronic (慢性的)wounds that take months to get better, changing bandages too early or to late could make healing take even longer. Changing the dressing on a wound too often can provide an opportunity for infections to get in. But if a bandage gets very wet very quickly from the inside, it might be filling with pus (脓)--a sign an infection has begun. Judging just when to change is important.

Chronic wounds are common in people who are older or who have certain health conditions. Chronic wounds affect around 6.5 million people per year in the United States. When Anushka Naiknaware, 13, learned about chronic wounds, she decided to make a device that could alert a person when it’s time to change their bandages.

After a lot of trials and errors, the teen settled on a design that used an “ink” filled with carbon nanoparticles(纳米粒子). The teen loaded her ink into a printer cartridge (墨盒) to print onto her special paper, which was to be made into bandage. Well, actually, Anushka loaded her ink into many, many printer cartridges. Just changing a printer cartridge isn’t easy, and filling one is even harder.

The small printed papers cost only 5 to 10 cents, Anushka estimates. The Bluetooth sensor is more expensive, but the teen notes that it could be used over and over again. She also knows there is a long way to go before her design can help patients. It hasn’t been tested on a real person yet. “You have to make sure everything works perfectly,” she says.

1.What can we learn from Paragraph 1?

A. The right time to change bandages is significant.

B. Chronic wounds with a bandage won’t heal.

C. Changing bandages often will help cure wounds.

D. Older people are victims of chronic wounds.

2.What does the underlined word “alter” in Paragraph 2 probably mean?

A. Assist.    B. Remind.    C. Comfort.    D. Control.

3.What is stressed in Paragraph 3?

A. The shape of the printer cartridge.

B. The discovery of materials of the bandage.

C. The amazing features of carbon nanoparticles.

D. The difficulty Anushka had with her invention.

4.What could be the best title for the text?

A. A bandage is widely used for injuries.

B. A girl decides to treat chronic wounds.

C. A bandage that can tell the changing time.

D. A teen invents a device that heals wounds.

Answer

1. A

2. B

3. D

4. C

【解析】

这是一篇新闻报道。文章讲了13岁的Anushka Naiknaware了解到慢性伤口的情况后，她决定制作一种设备，可以在需要更换绷带的时候提醒人们。

1.细节理解题。答案定位在第一段But if a bandage gets very wet very quickly from the inside, it might be filling with pus (脓)--a sign an infection has begun. Judging just when to change is important.可知更换绷带的正确时间很重要，故选A。

2.词义猜测题。划线词所在的句子When Anushka Naiknaware, 13, learned about chronic wounds, she decided to make a device that could alert a person when it’s time to change their bandages.的意思是当13岁的Anushka Naiknaware了解到慢性伤口的情况后，她决定制作一种设备，可以在需要更换绷带的时候提醒人们。“alter”的意思是提醒，A. Assist.帮助； B. Remind.提醒；C. Comfort.安慰；D. Control.控制，故选B。

3.推理判断题。答案定位在第三段After a lot of trials and errors, the teen settled on a design that used an “ink” filled with carbon nanoparticles(纳米粒子).和Just changing a printer cartridge isn’t easy, and filling one is even harder.可知第三段强调了Anushka在进行她的发明时，遇到的一些困难，故选D。

4.主旨大意题。第二段When Anushka Naiknaware, 13, learned about chronic wounds, she decided to make a device that could alert a person when it’s time to change their bandages.是全文的主题句，结合全文内容，可知这篇文章介绍了一种能告诉更换时间的绷带，故选C。