2023届北京市朝阳区高三二模英语试题(解析版).docx
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1、北京市朝阳区高三年级第二学期质量检测二英语(考试时间90分钟满分100分)本试卷共10页。考生务必在答题卡指定区域作答,在试卷上作答无效。第一部分知识运用(共两节,30分)第一节(共10小题;每小题1.5分,共15分)阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项,并在 答题卡上将该项涂黑。My son was born with breathing difficulties, so he had to stay in NICU, the hospital unit for newborns needing intensive care. There he cou
2、ld only be fed through a tube. I hated the tube. The lovely dreams I had of nursing my baby were entirely 1On the fifth day, I 2 about the tube, saying that I wanted to feed him with a bottle. The doctors agreed to let me try. My sons feedings would be closely recorded to see if he was able to get 3
3、 milk intake without the tube. After eighteen hours, it was determined he could not do that and the tube was back. This meant he wasnt getting stronger. The 4 felt so dark.Seated outside the NICU, I started crying. Just then, a young nurse came and sat beside me. When I had 5 my sorrow a little, she
4、 handed me a tissue and asked if I wanted to talk. I asked again if we could remove the tube.The nurse replied, Not today. But remember, tomorrow is a new day/7She seemed much younger than me, but her words were 6 and hope-filled, and I held on to them. I remembered her advice and repeated it to mys
5、elf multiple times a day. The nurse changed my perspective away from current 7 to see the hope of tomorrow. Gradually, things started to 8, On day eight, my son drank half ofhis milk without the tube. On day ten, the doctors approved taking off the tube 9 Tomoirow came. It just came a few days later
6、 than expected. On day fifteen, we were released from the hospital, and my son graduated” from the NTCU.What I learned from that nurse was to look beyond today and the suffering of it and to consider tomorrowwith 10. After all, tomorrow is a new day.1. A. controlledB. destroyed2. A. protestedB. wond
7、ered3. A. maximumB. restrictedC. questionedC. forgotC. sufficientD. recalledD. warnedD. additional4. A. plotB.spotC. atmosphereD. situation推理判断题。根据最后一段的“I shared my story in my book called I Am Choosing to Smile. I do, indeed, choose to smile. Waking up every morning, I look down at my one foot and
8、say with all sincerity, Good morning, five toes. Im very glad t。see you!”(我在我的书我选择微笑中分享了我的故事。我的确选择微笑。每天早上 醒来,我低头看着我的一只脚,真诚地说:“早上好,五个脚趾。我很高兴见到你!“)”可知,作者勇敢地 面对自己的缺陷,因此他是勇敢的,故选B。CResearchers from a U.K. plant research institute have found a way to provide plants with an antibody-based defense for a spe
9、cific threat, potentially speeding the creation of crops resistant to any kind of emerging virus, or bacterium 终田菌).The strategy is to inoculatea protein from the plant pathogen (病原体)to be targeted to a camel or other camel relatives, purify the unusually small antibodies the camels produce, and eng
10、ineer the corresponding gene section fbr them into a plants own immune gene.Farmers lose many billions of dollars to plant diseases each year, and emerging pathogens pose new threats to food security in the developing world. Plants have evolved their own immune system, kick-started by cell receptors
11、 that recognize general pathogen features, such as a bacterial cell wall, as well as intracellular receptors for molecules (分子)produced by specific pathogens. If a plant cell detects these molecules, it may trigger its own death to save the rest of the plant. But plant pathogens often evolve and esc
12、ape from those receptors.A long-standing dream in plant biotechnology is to create designer disease resistance genes that could be produced as fast as pathogens emerge. One approach is to edit the gene for a plant immune receptor, changing the proteins shape to recognize a particular pathogenic mole
13、cule.Instead, Sophien Kamoun, a molecular biologist at the Sainsbury Laboratory, and his colleagues used an animal immune system to help make the receptor adjustments. During an infection with a new pathogen, animals produce billions of slightly different antibodies, ultimately selecting and mass-pr
14、oducing those that best target the virus.Camelids, which include camels, are workhorses for antibody design because their immune systems create unusually small versions, called nano-bodies. As a proof of principle of the new plant defense strategy, Kamouns group turned to two standard camelid nano-b
15、odies that recognize two different molecules, including one called green fluorescent protein (GFP), to detect test viruses, in this case a potato virus, engineered to make the fluorescent proteins. They investigated how well plants with the nano-body-enhanced receptors detected the changed potato vi
16、ruses. It was found that the plants increased an active immune response and experienced almost no viral reproduction.“The exciting part about this technology is that we have the potential of made-to-order resistance genes and keeping up with a pathogen J Kamoun says. This technology is a potential g
17、ame changer/9 says Jeff Dangl, a plant researcher at the University of North Carolina. Ksenia Krasileva, a scientist at the University of California, Berkeley, says the mixture of nano-bodies with plant immune receptors opens up a vast body of biomedical knowledge for plant scientists. We can now di
18、g into all of that research and translate it to save crops.”27. What does the underlined word “inoculate“ in Paragraph 1 probably mean?A. Compare.B. Restore.C. Introduce.D. Label.28. What is the main purpose of Paragraph 2?A. To illustrate the function of cells in saving the plant.B. To explain how
19、to strengthen plant receptors effectively.C. To demonstrate the solutions to farmers5 annual heavy losses.D. To reveal why plants fail to handle constantly-updated diseases.29. What can we learn from the passage?A. Editing plant receptors is to match the shape of pathogens.B. Nano-bodies can help pl
20、ants catch up with pathogen changes.C. Plants select the best antibodies from animals to fight viruses.D. Plants with nano-bodies respond actively in massive virus copying.30. According to the passage, scientists will.A. apply the outcome in the real worldB. prove the findings of resistance genesC.
21、identify similar means to fight diseasesD. seek more support for the new strategy【答案】27.C28. D 29. B 30. A【解析】【导语】这是一篇说明文。主要说明了英国一家植物研究所的研究人员发现了一种方法,可以为植物提供 一种基于抗体的防御机制,以抵御一种特定的威胁,这可能会加速作物对任何新出现的病毒或细菌的抗性 的产生。【27题详解】词句猜测题。根据画线词下文 u a protein from the plant pathogen (病原体)to be targeted to a camel or o
22、ther camel relatives, purify the unusually small antibodies the camels produce, and engineer the corresponding gene section for them into a planfs own immune gene(将植物病原体中的一种蛋白质接种到骆驼或其他骆驼亲属,纯化骆驼产 生的异常小的抗体,并将其相应的基因片段转化为植物自身的免疫基因)”可知,要纯化骆驼产生的异常小 的抗体,并将相应的基因片段设计成植物自身的免疫基因,需要把一种来自植物病原体的蛋白质引入到骆 驼或其他骆驼的近亲身
23、上,故画线词意思是“引入二故选C。【28题详解】推理判断题。根据第二段“Farmers lose many billions of dollars to plant diseases each year, and emerging pathogens pose new threats to food security in the developing world. Plants have evolved their own immune system, kick-started by cell receptors that recognize general pathogen feature
24、s, such as a bacterial cell wall, as well as intracellular receptors for molecules (分子)produced by specific pathogens. If a plant cell detects these molecules, it may trigger its own death to save the rest of the plant. But plant pathogens often evolve and escape from those receptors.(农民每年因植物病害损失数十亿
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