Scientists say a woman has been healthy again from HIV(艾滋病病毒) without having any medical treatments.

Researchers have named the 31-year-old mother, who was first made sure with HIV in 2013, the “Esperanza patient”, after the town in Argentina where she lives. In English, “esperanza” means “hope”. The co-authors of the study, which was published Monday in the Annals of Internal Medicine, said they believe their findings will bring hope to about 38 million people living with HIV all over the world.

“I enjoy being healthy,” the Esperanza patient said. “I have a healthy family. I don’t have to take medicines, and I live as if nothing has happened. God has favoured me a lot.” Dr. Xu Yu, a viral immunologist, said, “It is really a wonder that the human immune(免疫) system worked.” He worked with Dr. Natalia Laufer to lead the search for any living HIV in the woman’s body. “She also gave birth to an HIV-negative(阴性) baby in March 2020,” he added.

So far, researchers have successfully cured two other people — in both cases through complex and dangerous stem cell transplants(干细胞移植).

 “The study sets the standard for proving that the Esperanza patient has no HIV DNA within her cells,” said Dr. Carl Dieffenbach. “The more of these patients we find and work up, the more complete our understanding of what a cured patient looks like.”

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1.How did the Esperanza patient feel about her being healthy again?

A Proud.

B Pleased.

C Surprised.

D Nervous.

解析：选B。B 推理判断题。根据第三段中该女子说的话“我很享受健康……上帝很眷顾我”，可推断她对自己的康复感到很高兴，故选B。

2.What’s the purpose of the passage?

A To introduce a woman with HIV.

B To tell us about a medical research on HIV.

C To introduce a new way of treating HIV.

D To ask people to protect themselves from HIV.

解析：选B。B 目的意图题。本文主要介绍了一项医学研究，该研究是关于一个未经治疗而自愈的艾滋病病毒(HIV)感染者，B项最符合。故选B。

3.How old was the woman when she was diagnosed(诊断) with HIV?

A 13.

B 20.

C 22.

D 30.

解析：选C。C 数字计算题。根据第二段的“Researchers have named the 31-year-old mother, who was first made sure with HIV in 2013, the “Esperanza patient””可知，该女子现年31岁，2013年(即9年前)确诊感染艾滋病毒，故她当时应是22岁。故选C。

4.What’s the main idea of the last paragraph?

A The value of the study.

B The standard of beating the HIV.

C The following plan of the research.

D The future treatment for HIV patients.

解析：选A。A 段落大意题。根据最后一段可知，这项研究为证明埃斯佩兰萨病人的细胞内没有艾滋病病毒DNA奠定了标准，这也是是该研究的价值所在，故选A。

5.What does the underlined words “a wonder” refer to?

A The scientists’ research.

B Two other people’s being cured.

C The woman’s being well again.

D The work of human immune system.

解析：选C。C 词义指代题。第三段该词所在句“It is really a wonder that the human immune(免疫) system worked.”这是人类免疫系统创造的奇迹，“奇迹”应该指前文中提到的the “Esperanza patient”的自愈康复。故选C。