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题型:阅读理解-阅读单选 难度:0.65 引用次数:24 题号:19740025

New research has found that even if you give up smoking, the damage it has done to your genes (基因) will stay there for a much longer time.

In the research,a team of US scientists studied the blood of 16,000 people. Among them, some were smokers, some used to smoke, and the rest were non-smokers. Scientists compared their genes and found that more than 7,000 genes of smokers had changed—a number that is one-third of known human genes.

According to NBC News, both heart disease and cancer are caused by genetic changes. Some people may have had the changes when they were born,but most people get them in their day-to-day lives while doing things like smoking.

When you stop smoking,a lot of these genes will return to normal within five years. This means your body is trying to heal (治愈) itself of the harmful effects of smoking. But the changes in some of the genes stay for longer. They can stay for as long as 30 years. It’s almost like leaving a footprint on wet cement (水泥)-it will always be there, even when you’ve walked away and when the cement becomes dry.

Although the study results may make people unhappy, there is a bright side: the findings could help scientists invent medicine to treat genetic damage caused by smoking or find ways to tell which people have heart disease or cancer risks.

1. The function of Paragraph 1 is to         .
A.give an exampleB.show the blackground of the passage
C.make an argumentD.introduce the topic of the passage
2. Most genetic changes happen because of         .
A.people’s condition at birthB.environmental pollution
C.people’s bad living habitsD.heart disease and cancer
3. The underlined word “it” in Paragraph 4 refers to         .
A.the cementB.the footprint
C.the harmful effectsD.the genetic change
4. Which of the following statements is true?
A.The findings can’t help scientists to find ways to tell which people have heart disease.
B.The findings have prevented more people from starting smoking.
C.The findings offer evidence that a damaged gene can heal itself.
D.The findings help scientists to find cures for genetic damage caused by smoking.

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文章大意:这是一篇新闻报道。本文讲述了一位父亲创建救治眼疾的应用程序,收录患者的照片和数据,帮助视网膜母细胞瘤患者。

【推荐1】After his baby son lost his eye to retinoblastoma (视网膜母细胞瘤), this father found a way to save others from the same fate.

Like almost every set of new parents. Bryan and Elizabeth Shaw started taking pictures of their son, Noah, practically from the moment he was born. When he was about three months old, Elizabeth noticed something odd when she took his picture. The flash on their digital camera created the typical red dot in the center of Noah’s left eye, but the right eye had a white spot at the center, almost as if the flash was being reflected back at the camera by something.

When Elizabeth mentioned the strange phenomenon to their doctor, she shined a light into Noah’s eye, and saw the same white reflection, a tell-tale sign of retinal (视网膜的) cancer. After that, Noah received months of chemotherapy and radiation, but doctors finally could not save his eye.

Noah’s tumour (肿瘤) is treatable if caught early. Bryan Shaw couldn’t help but wonder whether there were signs he’d missed. He went back over every baby picture of Noah he could find and discovered the first white spot in a photo taken when Noah was 12 days old. “By the time he was four months old, it was showing up in 25 per cent of the pictures taken of him per month,” Bryan told People.

It was too late for Noah’s eye, but Bryan was determined to put his hard-won insights to good use, so he created a database that charted the cancer’s appearance in every photo. He also collected photos and data from eight other children with retinoblastoma. Armed with that data, he began to work with colleagues to develop a smartphone app that can scan the photos in the user’s camera roll to search for white eye and can be used as a kind of ophthalmoscope (检眼镜). Called White Eye Detector, it is now available for free on Google Play and in Apple’s App Store.

1. Which can be inferred from the passage?
A.Noah’s discase was treatable when discovered.
B.Noah got the discase when he was three months old.
C.Noah’s parents failed to notice his symptoms at the beginning.
D.Neither of Noah’s eyes could be saved for a delay in treatment.
2. Why did Bryan create the database?
A.To create a photo scanner on the phone.
B.To collect the data of children with the disease.
C.To assess his hard-won insights into the disease.
D.To use his knowledge to save others from the disease.
3. What’s the writing purpose of this passage?
A.To speak highly of father’s love.
B.To introduce a type of eye cancer.
C.To raise people’s awareness of eye protection.
D.To report a father’s creation of an eye-saving app.
2022-05-09更新 | 116次组卷
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【推荐2】I went to a New York Mets fantasy camp in 1995, an incredible experience. I was fortunate to be on a team whose pitching coach was Mel Stottlemyre, the former Yankees star pitcher(投手) and Mets and Yankees coach. I was upset when Mel died of cancer on Jan. 13, 2018, at the age of 77.

He was warm, friendly and treated us as if we were major leagues. He asked me whether I would like to pitch and showed me how to throw a “two-seamer”, a fastball that tends to sink, as well as a straight four-seam fastball. I knew that pitching was not for me. At age 45, my experience in organizing baseball was limited to a couple of years in Little League in the Bronx, and softball games as an adult. Mel eventually left the Mets and became the pitching coach for the Yankees. I followed his career and knew about his diagnosis of multiple myeloma(骨髓瘤), a blood cancer, in April 2000, and a stem cell transplant.

In the summer of 2002, I was diagnosed as multiple myeloma and was told that I needed a stem-cell transplant by the same group of doctors at Memorial Sloan Kettering Cancer Center that had treated Mel.

This shocked me, and frankly, I became quite depressed. I vowed that somehow I would try to speak to Mel. One day, my phone rang. Mel was calling from the Yankee' locker room. I asked him to tell me everything about his treatment. He spent 30 minutes generously explaining all the details. I hung on every word. He told me how well he was feeling and ended the conversation by giving me his home phone number! "I feel great, and I'm not retiring," he told me.

This incredible experience lifted my spirits. Every time I saw Mel during games on TV as I awaited my transplant, I repeated to myself, "Look at Mel. If he can do it, so can I."

1. Why did the author say he was lucky in Paragraph 1?
A.He joined a famous team.
B.He met an unusual coach.
C.He was successfully cured.
D.He was chosen as a pitcher.
2. What do we know about the author?
A.He was not skilled in pitching.
B.He was a good baseball player.
C.He called Mel for his treatment.
D.He forgot what Mel had told him.
3. How old was Mel when he was diagnosed as multiple myeloma?
A.23.B.45.
C.59.D.6l.
4. What would be a suitable title for the text?
A.The Skills Taught by My Former Coach
B.The Transplant Given by the Same Doctors
C.My Baseball Team Helping Me Out
D.My Coach's Spirits Shining on Me
2020-06-24更新 | 26次组卷
阅读理解-阅读单选(约370词) | 适中 (0.65)
文章大意:本文是一篇说明文。文章介绍了新冠疫情以来,美国人的预期寿命下降了。

【推荐3】Despite the life-saving COVID-19 vaccines (疫苗), so many people died in the second year of the pandemic in the US that the nation’s life expectancy dropped for a second year in a row last year, according to a new analysis.

The analysis of government statistics found US life expectancy fell by just under half a year in 2021, adding to a dramatic drop in life expectancy that occurred in 2020. Dr. Steven Woolf, a professor of population health and health expert at Virginia Commonwealth University, who helped conduct the analysis, said many of the deaths occurred in people in the prime of their lives. And Woolf added that it drove the overall US life expectancy to fall to 76.6 years—the lowest in at least 25 years.

“Shame on the US,” said Noreen Goldman, a professor at Princeton University. The 2021 drop came after US life expectancy fell in 2020, dropping by almost two years. It’s unclear why this happened, but Woolf and others thought it may be due in part to some Americans more likely to live in states with fewer restrictions, so they let down their guard more, while often refusing to get vaccinated.

“The deaths that occurred in 2021 were a product not only of a lack of COVID-19 vaccines, which was a factor, but also being in places that didn’t observe policies like masking and social distancing that prevented spread of the virus, which was the main reason,” Woolf said.

The 2021 drop also widened the gap in life expectancy between the US and other countries, the analysis found. That was due primarily to lower vaccination rates in the US, researchers said. The researchers also said a big part of that was fewer restrictions and more vaccine hesitation in the US, which resulted in lower vaccination rates and a much higher death number. The other health problems like heart attack and overweight also played a role, they said.

“We spent a fortune on medical care and we’re a high-income country. Our government should be able to do far better,” Goldman said.

1. What was America’s life expectancy before COVID-19?
A.About 79.1 years.B.About 78.6 years.
C.About 77.1 years.D.About 76.6 years.
2. What played an important role in leading the high death rate in the US?
A.Lack of medicine.B.Powerful virus.
C.Violation of anti-epidemic policies.D.The government’s negative act.
3. Which column of a magazine can this text come from?
A.Politics.B.Science.C.Education.D.Health.
4. What is Goldman’s attitude toward the government?
A.Unsatisfied.B.Objective.C.Supportive.D.Unconcerned.
2023-01-09更新 | 70次组卷
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