山西省太原市高考英语二轮复习 阅读理解训练2.docx

1、山西省太原市高考英语二轮复习 阅读理解训练2山西太原市2016高考英语二轮阅读理解训练（2）请认真阅读下列短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项。For decades, public health officials have puzzled over a surprising fact about HIV: Only about 10-20 percent of infants who are breastfed by infected mothers catch the virus. Tests show, though, that HIV is indeed p

2、resent in breast milk, so these children are exposed to the virus multiple times daily for the first several months of their lives.Now, a group of scientists and doctors from Duke University has figured outwhy these babies dont get infected. Human breast milk naturally contains a protein calledTenas

3、cin Cthat neutralizes HIV and, in most cases, prevents it from being passed from mother to child. Eventually, they say, the protein could potentially be valuable as an HIV-fighting tool for both infants and adults that are either HIV-positive or at risk of contracting the infection.The research, pub

4、lished inProceedings of the National Academy of Sciences, was inspired byprevious workby other researchers showing that, both in tissue cultures (组织培养) and live mice, breast milk fromHIV-negativemothers was naturallyendowed withHIV-fighting properties. Scientists suggested that a few different prote

5、ins in the milk could potentially be responsible, but no one knew which one.As part of the study, the researchers divided breast milk into smaller fractions (部分) made up of specific proteins via a number of filters (过滤) separating the proteins by size, electrical charge and othercharacteristicsand t

6、ested which of these fractions, when added to a tissue culture, prevented the cells from being infected by HIV. Eventually, theyfound that one particular protein was present in all the HIV-resistant fractions but in none of the others: Tenascin C.Tenascin C works by blocking a key protein onHIVs env

7、elopethat normally ties up to a receptor on a T cells membrane called CCR5. In doing so, Tenascin C prevents HIV from mixing with the T cell and injecting its RNA inside.Still, the researchers say that other natural elements in milk might play a role in fighting HIV as well. “Its clearly not the who

8、le story, because we do have samples that have low amounts of this protein but still have HIV-neutralizing activity,” the studys lead author Permar says.“So it may be actingin concert withother antiviral and antimicrobial factors in the milk.”Whatever those other factors are, though, the finding vin

9、dicates (证明的正确) recent changes toUN guidelinesthatrecommend even HIV-positive mothers in resource-poor countries should breastfeed, if theyre taking anti-retroviral drugs to combat their own infection.The next steps, Permar says, are determining which area of Tenascin C is active and whether it can

10、effectively prevent transmission in a live animal. If it works, it could potentially beincorporated(合并) into an HIV drug with broader applications. Its evenpossiblethat it could someday be adapted to reduce the risk of HIV transmission in adults as well as infants.63. What is the main idea of Paragr

11、aph 1?A. The breast milk from an infected mother doesnt contain HIV at all.B. Its less likely for infants feeding on infected mothers breast milk to catch HIV.C. The possibilities of infants catching HIV have nothing to do with infected mothers.D. Children breastfed by infected mothers wont catch HI

12、V though exposed to it frequently.64. Why did the researchers divide breast milk into smaller fractions?A. To find out Tenascin C.B. To make up specific proteins.C. To add them to a tissue culture.D. To test what prevents cells being infected.65. Which of the following about Tenascin C is true?A. It

13、 has become an effective tool in fighting HIV.B. It was first found by Permar and her research group.C. It can prevent transmission in a live animal effectively.D. It can sometimes prevent mother-to-child transmission of HIV.66. What can we know about Permar and her research group according to the p

14、assage?A. They have found a cure for HIV.B. They have helped changeUN guidelines.C. They will do more researches on Tenascin C.D. Their finding is based on their previous work.【参考答案】63. B64. D65. D 66. C【2014高考英语南京市、盐城市一模】请认真阅读下列短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项。He leant down to the pickpocket. The he

15、aving and gasping had stopped, but he was still making a show of his breathlessness.“Thats better,” Mallon said. “Can you stand up? Try to stand up. Here,” he said, and gripped the pickpockets arm and forced him upright until he saw his face for the first time. As the pickpocket labored for breath,

16、he gazed up at Mallon with his dark eyes.“How could you?”they asked.Mallon might have said, “Because you tried to steal from me.” But he was still conscious of the flush of joy hed felt when his blow struck home when he knew hed hurt the man. Where that joy came from he couldnt say, but he knew that

17、 its roots were deeper than some clumsy failed theft.Fat drops of rain began to patter on theawning(雨篷).“How are you?” Mallon said. “Can you walk?” The pickpocket turned away and leant against the store window with both hands, and his head sank lower as his shoulders rose and fell. A gray-haired wom

18、an inside the store rapped on the glass and made a shooing motion. When the pickpocket ignored her, she rapped harder and kept rapping.“I have to go,” Mallon said. “Im sorry.” He looked up at the sky. “Im sorry,” he said again, and stepped into the rain and walked quickly up the street.One of the Ba

19、ngladeshi umbrella sellers was working the corner, and Mallon had just paid seven euros when he heard a woman shouting. He didnt want to look back but did. It was the woman from the shop, pushing and batting the pickpocket away from the window while he bent down and covered his head like a boxer try

20、ing to get through the last seconds of a round. Mallon slipped his wallet back into his jacket pocket and took the umbrella that the Bangladeshi had opened for him.The pickpocket was out on the sidewalk now, in the rain. The woman stood just under the awning with her arms crossed over her chest.“Exc

21、use me, madam,” Mallon said, coming up to them. “This man isnt well. He needs to rest a moment.”“I know these people,” she said. “Our Romans dont want them here.”The rain fell in sheets, ran down the pickpockets shinyscalpand face, down his leather jacket.“Here,” Mallon said, and offered him the umb

22、rella, but he only looked at Mallon with his hurt dark eyes and then lowered his head again. Mallon bumped him in the shoulder with the handle of the umbrella. “Go on take it!” he said. And finally, with a beaten, unwilling look, the pickpocket did.And that was when he saw a taxi round the corner wi

23、th a light glowing on its roof. Mallon ran out waving his arm and the cab turned sharply to the pavement, sendinga lot ofwater over his shoes. He opened the door but couldnt help looking back. The pickpocket had lowered the umbrella to the ground upside down and was leaning on theshaft, head low, ne

24、ck bared to the sky.“Wait,” Mallon said to the driver. He went back and grabbed the pickpockets sleeve and pulled him to the cab. “Get in,” Mallon said, and took the umbrella and pushed him into the back seat. He leaned inside. “O.K., where do you live?”“No Gypsies!” the driver said. He was twisted

25、around, glaring at the pickpocket.“Gypsy? Look, hes not well. Ill pay,” Mallon added.The driver shook his head. “No Gypsies. Get him out,”Mallon looked at the drivers nameplate: Michele Kadare. “Its the law,” he said, “If you dont take us, Signor Kadare, Ill report you and youll lose your license. B

26、elieve me I am quite serious.”The driver fastened those pale eyes on Mallon and turned and put his hands on the steering wheel. He raised his eyes to the rearview mirror and he and Mallon exchanged stares.“O.K., Mr. American,” he said. “You pay.”67. What does the underlined sentence in Paragraph 2 i

27、ndicate?A. Mallon shouldnt have saved the pickpocket.B. The pickpocket didnt thank Mallon for his offer.C. The pickpocket blamed Mallon for his failure to steal.D. Mallon must have beaten the pickpocket before helping him.68. Where should the sentence “He hesitated, then turned back.” be placed?A. B

28、etween paragraphs 5 and 6.B. Between paragraphs 6 and 7.C. Between paragraphs 7 and 8.D. Between paragraphs 8 and 9.69. From the attitudes of the woman and the driver towards the pickpocket, we can conclude that _.A. the Gypsies had a bad reputation in RomeB. the pickpocket frequently stole around t

29、he womans storeC. everyone was protected by the law in Rome except the GypsiesD. the pickpocket couldnt purchase anything in the womans store70. Which of the following can be inferred from the passage?A. The taxi didnt take the pickpocket to his house in the end.B. The pickpocket succeeded in steali

30、ng something from Mallon.C. The pickpocket was a little suspicious of Mallons intention to help him.D. The umbrella seller gave an umbrella to Mallon free of charge.【参考答案】67. B68. C69. A70. C阅读理解。 Psychiatrists (精神病专家) who work with older parents say that maturity can be an asset in child raisingold

31、er parents are more thoughtful, use less physical discipline and spend more time with their children. But raising kids takes money and energy. Many older parents find themselves balancing their limited financial resources, declining energy and failing health against the growing demands of an active

32、child. Dying and leaving young children is probably the older parents biggest, and often unspoken, fear. Having late-life children, says an economics professor, often means parents, particularly fathers, “end up retiring much later.” For many, retirement becomes an unobtainable dream. Henry Metcalf a 54-year-old journalist, knows it takes money to raise