内容正文:
精准提速
高三英语限时训练5
班级____________ 姓名:____________ 用时:____________ 成绩:____________
要求用: 25min
A
Georgia Aquarium is a non-profit scientific organization with over 11 million gallons of water. It aims to entertain and educate visitors through high-standard exhibits and programs, ultimately saving animal species and creating a balanced environment. As a research leader, it studies sea animals in human care and natural habitats to advance scientific knowledge and apply discoveries to conservation. Visitors can enjoy hands-on activities, close-up animal experiences, and educational programs designed to develop a deeper appreciation for our ocean and the animals that call it home.
Galleries
Coral Diver—Experience over 200 species of the Indo-Pacific Corals
Learn more about the different types of corals, why corals are vital to the ocean, and how we care for them through face-to-face sessions with our aquarium specialists.
Dolphin Coast—Dive into the World of Dolphins
THEATER SEATS: 1,800+
Dolphins are social animals that live in small groups. Through the underwater viewing tunnel, watch playful dolphins and interact with dolphin keepers.
Presentation time: 3:00 PM/6:00 PM
Sea Lion Studio—Encounter Sea Lions
THEATER SEATS: 500+
Trainers will interact with these incredible creatures while educating guests on the dangers the sea animals face in their natural environment, as well as key environmental factors that impact them. To attend the Dolphin or Sea Lion Presentation, please reserve online. First come, first served. Space is limited.
Presentation time: 9:00 AM/10:30 AM
One-Day Ticket
Reserve & Save General Admission—Off-peak times
$49
Reserve & Save General Admission—Weekends & Holidays
$59
Anytime General Admission—Walk-in
$79
Book off-peak & save
Save on tickets when you book off-peak times like weekdays. An additional $10 discount applies to every ticket for entry after 3:30 P.M.
21. What is the purpose of Georgia Aquarium?
A. To raise awareness for sea plants.
B. To take care of natural habitats.
C. To collect funds for animal research.
D. To protect undersea biodiversity.
22. What do the three galleries have in common?
A. They provide glass channels for viewing.
B. They offer scheduled presentations online.
C. They allow visitors to engage with professionals.
D. They highlight environmental threats to sea animals.
23. A couple who make reservation and arrive at 4:00 P.M. on Monday should pay ______.
A. $78 B. $98 C. $118 D. $138
B
One day, I was walking across campus when I spotted one of my students sitting on a bench, her face turned toward the sun, her eyes closed. I went over and asked if I could sit with her. When I asked how she was doing, she explained that her phone had "crashed," and she was bored.
The moment reminded me how deeply we're shaped by the digital world. Our devices, including computers, smartphones and the never-ending flow of online content, keep feeding us fresh updates, training us to expect continued stimulation. We've become trapped in a cycle of response, as if any pause were a problem to be solved.
My thoughts wandered back to my childhood—those afternoons spent staring out the window, doing nothing in particular. What felt like aimless boredom was actually a retooling period when my mind needed to reset before it could rediscover joy and invention. Before I knew it, I was building models, climbing trees, or playing instruments.
"What are your personal interests?" I asked my student. Her eyes lit up as she showed me her amazing artwork. "Have you ever felt bored while drawing?" I asked. "Never," she said, though ideas didn't always come easily. "Does that annoy you?" "No," she responded, "because I know that something will eventually pop into my head. When it does, it's a real rush of satisfaction."
That was it. That was exactly it. She needed to walk in the desert before arriving at the oasis. She needed to experience a complete lack of inspiration before it struck her. This must have been what Ralph Waldo Emerson meant when he wrote, "Guard well your spare moments. They are like uncut diamonds. ... Improve them and they will become the brightest gems in a useful life."
As I left, I told her the truth: "I envy you"—not for her dead device, but for the creative space it had opened.
24. What is the author's main concern over digital devices?
A. They cause unease during quiet pauses. B. They require frequent software updates.
C. They often stop working without warning. D. They may replace face-to-face interaction.
25. What role did boredom play in the author's childhood?
A. It taught him to be patient. B. It gave him time to recharge.
C. It developed his rich imagination. D. It helped him avoid digital distraction.
26. What can we learn from the student's response?
A. True artists never feel bored. B. Drawing requires special training.
C. Inspiration comes after waiting. D. Satisfaction begins when desire ends.
27. What advice is the author implying by saying "I envy you"?
A. Use phone less. B. Hold tight to youth.
C. Search for more treasure. D. Spare time for creativity.
C
Nicotinamide mononucleotide (NMN), a natural compound found in foods like broccoli and avocado, has emerged as a promising anti-aging supplement. As people age, their levels of nicotinamide adenine dinucleotide (NAD⁺) decline. Since NMN helps boost NAD⁺ production, scientists believe it could slow age-related decline.
The current global aging crisis urges studies in this field. With the population over 65 expected to double by 2050, age-related diseases such as Alzheimer's, Parkinson's diseases and diabetes have gone up, leading to heavy global socioeconomic and medical burden. Therefore, age management medical practices have been mushrooming in the world for recommending nutritional supplements. And NMN serves as a direct boost to NAD⁺, a vital molecule that fuels cells with energy and repairs DNA damage.
Many studies have been done to explore NMN's anti-aging effects in various cells and tissues, most of which were done in animal models. For example, according to Fu and Zhang, on an experiment of using NMN in preparation of anti-aging health-care products or drugs on aged mice, it was found that the NMN administration could extend the life span of mice by 29%. Fang investigated that the hearing loss happened to mice could be prevented by improving cochlear health and restoring outer hair cell loss. Wang also indicated that the use of NMN contributed to the restoration of learning and cognition in rats.
However, most evidence comes from lab studies, and human trials remain limited. Also, in terms of intake, early small-scale studies suggest NMN is safe in doses up to 500 mg per day, but experts caution that unregulated high doses (such as 1,000 mg capsules) could be risky.
Alarmingly, despite the lack of comprehensive human data, NMN supplements are already widely marketed. Dr. Jun Lu, a leading researcher, warns: "Nature perfected these systems over millions of years—lab-made versions still can't fully copy them." While NMN holds promise, more research is needed to confirm its safety and effectiveness in humans.
28. Why are scientists interested in NMN?
A. Because it is a natural compound found in common foods.
B. Because it is the only effective anti-aging supplement available.
C. Because it may contribute to slowing aging by boosting NAD⁺ levels.
D. Because it has been proven to cure Alzheimer's and Parkinson's diseases.
29. The underlined word "administration" in Paragraph 3 most likely means ______.
A. government B. interruption
C. injection D. accommodation
30. Which of the following words best describes the effectiveness of NMN on humans?
A. Revolutionary. B. Promising.
C. Invasive. D. Unproven.
31. What is the best title for the passage?
A. Animal Studies Prove NMN's Anti-Aging Effects
B. NMN's Potential and Risks: A Scientific Perspective
C. How NMN Supplements Are Dominating the Market
D. NMN: The Miracle Anti-Aging Solution Finally Found
D
Microplastics have been detected in human brains at far higher concentrations than in other bodily organs—and levels are increasing, having risen 50 percent in eight years.
This is the conclusion of a team of researchers from the University of New Mexico (UNM), who said the findings should trigger alarm. "This really changes the landscape. It makes it so much more personal," UNM professor Matthew Campen said in a statement. "I have not encountered a single human being who says, 'There's a bunch of plastic in my brain and I'm totally cool with that.'"
Microplastic (smaller than 5 millimeters in size) and nanoplastics (under 0.001 millimeters) pollution have become common in the environment and can get into the food we eat. These plastic bits have been found in various bodily organs—including the kidney, liver—although not at such concentrations as now seen in the brain, the team said.
The researchers identified 12 different types of plastic within samples collected from the so-called frontal cortex—the brain region found above and behind the eyes that had been linked to various capabilities from abstract thinking through to motor function. "We start thinking that maybe these plastics block blood flow in small blood tube," Campen said. "There's the potential that these nanomaterials interfere with the connections between axons in the brain. They could also be a seed for grouping of proteins involved in dementia. We just don't know."
Campen said most of the microplastics that end up in our bodies arrive there via food—meat in particular, as commercial meat production concentrates plastics across the food chain. "The way we irrigate fields with water containing plastic, we assume that the plastic builds up there," he said. "We feed those crops to our farm animals. We take the animal waste and put it back on the field."
Microplastic and nanoplastics pollution in the environment is certain to grow, the researchers warn—for even if we were to cease plastic production tomorrow, existing plastic would still be around to break down into tiny and then super tiny pieces.
32. Why does the author cite Professor Matthew Campen's words in paragraph 2?
A. To emphasize the impact of plastics on individuals.
B. To explain the source of plastics in human organs.
C. To trigger a quick response from different researchers.
D. To advocate for reduction measures in plastic production.
33. What might nanoplastics in the brain lead to?
A. Continuous brain aging. B. Immediate memory loss.
C. Disturbed neural bonds. D. Complete blood tube blockage.
34. What can be inferred about commercial meat production?
A. It relies on polluted irrigation. B. It removes plastics completely.
C. It reduces the waste of crops. D. It accumulates plastics in food chain.
35. What does the last paragraph's warning imply?
A. Nanoplastics is less harmful.
B. Anti-pollution efforts are effective.
C. Existing plastics still pose a threat.
D. Stopping production solves pollution.
答题区
A篇
B篇
C篇
D篇
高三英语限时训练5
答案速对:
21-23 DCA 24-27 ABCD 28-31 CCDB 32-35 ACDC
A篇:乔治亚水族馆
21. 乔治亚水族馆的目的是什么?
A. 提高对海洋植物的认识
B. 照顾自然栖息地
C. 为动物研究筹集资金
D. 保护海底生物多样性
答案:D
解析: 文章第一段明确指出水族馆的宗旨:"It aims to entertain and educate visitors... ultimately saving animal species and creating a balanced environment." 以及 "apply discoveries to conservation",这些都指向保护生物多样性。
原文依据: "It aims to entertain and educate visitors through high-standard exhibits and programs, ultimately saving animal species and creating a balanced environment. As a research leader, it studies sea animals in human care and natural habitats to advance scientific knowledge and apply discoveries to conservation."
翻译: 它旨在通过高标准的展览和项目来娱乐和教育游客,最终拯救动物物种并创造平衡的环境。作为研究领导者,它研究人工饲养和自然栖息地中的海洋动物,以推进科学知识并将发现应用于保护。
22. 这三个展馆有什么共同点?
A. 它们提供玻璃通道供观赏
B. 它们提供在线安排的演示
C. 它们允许游客与专业人士互动
D. 它们强调海洋动物面临的环境威胁
答案:C
解析: 三个展馆的描述中都提到了与专业人员互动的机会:Coral Diver有"face-to-face sessions with our aquarium specialists";Dolphin Coast可以"interact with dolphin keepers";Sea Lion Studio有"Trainers will interact with these incredible creatures while educating guests"。
原文依据:
Coral Diver: "Learn more... through face-to-face sessions with our aquarium specialists."
Dolphin Coast: "interact with dolphin keepers."
Sea Lion Studio: "Trainers will interact with these incredible creatures while educating guests."
翻译:
珊瑚潜水员:"通过与水族馆专家的面对面交流,了解更多关于..."
海豚海岸:"与海豚饲养员互动。"
海狮工作室:"训练员将与这些不可思议的生物互动,同时教育游客..."
23. 一对夫妇提前预订并在周一下午4:00到达,应该支付多少钱?
A. 78美元 B. 98美元 C. 118美元 D. 138美元
答案:A
解析: 周一是工作日(off-peak),提前预订的"Reserve & Save General Admission—Off-peak times"价格为$49每人。另外,下午3:30后入场可享受"an additional $10 discount",即每人$39。两人共$78。
原文依据:
"Reserve & Save General Admission—Off-peak times | $49"
"An additional $10 discount applies to every ticket for entry after 3:30 P.M."
翻译:
"提前预订优惠普通门票—非高峰时段 49美元"
"下午3:30后入场的每张门票额外优惠10美元。"
B篇:数字时代与创造力
24. 作者对数字设备的主要担忧是什么?
A. 它们在安静停顿期间引起不安
B. 它们需要频繁的软件更新
C. 它们经常无故停止工作
D. 它们可能取代面对面交流
答案:A
解析: 第二段中,作者指出数字设备"training us to expect continued stimulation"并让我们陷入"a cycle of response, as if any pause were a problem to be solved",说明任何停顿都被视为需要解决的问题,即安静时刻会引起不安。
原文依据: "Our devices... keep feeding us fresh updates, training us to expect continued stimulation. We've become trapped in a cycle of response, as if any pause were a problem to be solved."
翻译: 我们的设备不断给我们提供新鲜内容,训练我们期待持续的刺激。我们陷入了一个响应循环,仿佛任何停顿都是需要解决的问题。
25. 无聊在作者童年时期扮演了什么角色?
A. 它教会他耐心
B. 它给了他时间 recharge
C. 它培养了他丰富的想象力
D. 它帮助他避免数字干扰
答案:B
解析: 第三段中,作者描述童年无所事事的时光:"What felt like aimless boredom was actually a retooling period when my mind needed to reset before it could rediscover joy and invention." 无聊是一个让思维重置的时期。
原文依据: "What felt like aimless boredom was actually a retooling period when my mind needed to reset before it could rediscover joy and invention."
翻译: 那些看似漫无目的的无聊时光实际上是一个调整期,我的思维需要重置,然后才能重新发现快乐和创造力。
26. 从学生的回答中我们可以学到什么?
A. 真正的艺术家从不感到无聊
B. 绘画需要特殊训练
C. 灵感在等待之后到来
D. 满足感始于欲望结束时
答案:C
解析: 学生回答:"I know that something will eventually pop into my head. When it does, it's a real rush of satisfaction." 表明她知道灵感最终会出现,等待是创作过程的一部分。
原文依据: "because I know that something will eventually pop into my head. When it does, it's a real rush of satisfaction."
翻译: 因为我知道最终会有东西出现在我脑海里。当它出现时,那是一种真正的满足感。
27. 作者说"我羡慕你"暗示了什么建议?
A. 少用手机
B. 抓住青春
C. 寻找更多宝藏
D. 留出时间给创造力
答案:D
解析: 文章最后一句:"not for her dead device, but for the creative space it had opened." 作者羡慕的不是手机坏了,而是手机坏了所打开的创造空间,暗示要留出时间给创造力。
原文依据: "I envy you"—not for her dead device, but for the creative space it had opened.
翻译: "我羡慕你"——不是因为她坏掉的设备,而是因为它打开的创造空间。
C篇:NMN抗衰老研究
28. 为什么科学家对NMN感兴趣?
A. 因为它是常见食物中的天然化合物
B. 因为它是唯一有效的抗衰老补充剂
C. 因为它可能通过提高NAD⁺水平来延缓衰老
D. 因为它已被证明能治愈阿尔茨海默病和帕金森病
答案:C
解析: 第一段明确说明:"Since NMN helps boost NAD⁺ production, scientists believe it could slow age-related decline."
原文依据: "As people age, their levels of nicotinamide adenine dinucleotide (NAD⁺) decline. Since NMN helps boost NAD⁺ production, scientists believe it could slow age-related decline."
翻译: 随着年龄增长,人们体内烟酰胺腺嘌呤二核苷酸(NAD⁺)水平下降。由于NMN有助于提高NAD⁺的产生,科学家相信它可以减缓与年龄相关的衰退。
29. 第三段中带下划线的单词"administration"最可能的意思是______。
A. 政府 B. 中断 C. 施用/给药 D. 住宿
答案:C
解析: 根据上下文,该词出现在动物实验描述中:"NMN administration could extend the life span of mice by 29%",指给小鼠施用/注射NMN。
原文依据: "it was found that the NMN administration could extend the life span of mice by 29%."
翻译: 研究发现,施用NMN可以使小鼠的寿命延长29%。
30. 以下哪个词最能描述NMN对人类的有效性?
A. 革命性的 B. 有前景的 C. 侵入性的 D. 未经证实的
答案:D
解析: 文章第四、五段指出:"most evidence comes from lab studies, and human trials remain limited"、"despite the lack of comprehensive human data",说明NMN对人体的效果尚未被充分证实。
原文依据: "However, most evidence comes from lab studies, and human trials remain limited." / "Alarmingly, despite the lack of comprehensive human data, NMN supplements are already widely marketed."
翻译: 然而,大多数证据来自实验室研究,人体试验仍然有限。/ 令人担忧的是,尽管缺乏全面的人体数据,NMN补充剂已经广泛销售。
31. 这篇文章的最佳标题是什么?
A. 动物研究证明NMN的抗衰老效果
B. NMN的潜力和风险:科学视角
C. NMN补充剂如何主导市场
D. NMN:终于找到的神奇抗衰老解决方案
答案:B
解析: 文章既讨论了NMN的潜力(抗衰老作用、动物实验结果),也指出了其风险(人体数据不足、高剂量风险、市场监管缺失),B选项全面概括了这两个方面。
原文依据: 全文主旨——第一段介绍NMN的潜力,中间段落介绍动物实验效果,最后两段指出局限性和风险。
翻译: 全文综合呈现了NMN的科学潜力和已知风险。
D篇:大脑中的微塑料
32. 作者为什么在第二段引用Matthew Campen教授的话?
A. 强调塑料对个人的影响 B. 解释人体器官中塑料的来源
C. 引发其他研究人员的快速回应D. 倡导减少塑料生产的措施
答案:A
解析: Campen的话:"This really changes the landscape. It makes it so much more personal" 强调研究发现使问题更加贴近个人,突出了塑料对每个人的影响。
原文依据: "This really changes the landscape. It makes it so much more personal," UNM professor Matthew Campen said in a statement. "I have not encountered a single human being who says, 'There's a bunch of plastic in my brain and I'm totally cool with that.'"
翻译: "这真的改变了局面。这让问题更加个人化,"UNM教授Matthew Campen在一份声明中说。"我还没遇到过一个人说,'我脑子里有一堆塑料,我完全无所谓。'"
33. 大脑中的纳米塑料可能导致什么?
A. 持续的大脑老化 B. 即时记忆丧失
C. 干扰神经连接 D. 完全堵塞血管
答案:C
解析: 第四段中Campen提到:"There's the potential that these nanomaterials interfere with the connections between axons in the brain."
原文依据: "There's the potential that these nanomaterials interfere with the connections between axons in the brain. They could also be a seed for grouping of proteins involved in dementia."
翻译: 这些纳米材料有可能干扰大脑中轴突之间的连接。它们也可能成为与痴呆症相关的蛋白质聚集的种子。
34. 关于商业肉类生产,可以推断出什么?
A. 它依赖于受污染的灌溉 B. 它完全去除塑料
C. 它减少作物浪费 D. 它在食物链中积累塑料
答案:D
解析: 第五段指出:"commercial meat production concentrates plastics across the food chain",说明商业肉类生产导致塑料在食物链中富集。
原文依据: "Campen said most of the microplastics that end up in our bodies arrive there via food—meat in particular, as commercial meat production concentrates plastics across the food chain."
翻译: Campen说,最终进入我们体内的大多数微塑料是通过食物进入的——尤其是肉类,因为商业肉类生产使塑料在整个食物链中富集。
35. 最后一段的警告暗示了什么?
A. 纳米塑料危害较小 B. 抗污染努力是有效的
C. 现有的塑料仍然构成威胁 D. 停止生产就能解决污染
答案:C
解析: 最后一段指出:"even if we were to cease plastic production tomorrow, existing plastic would still be around to break down into tiny and then super tiny pieces",说明即使停止生产,现有塑料仍会持续分解成更小的颗粒,持续构成威胁。
原文依据: "Microplastic and nanoplastics pollution in the environment is certain to grow, the researchers warn—for even if we were to cease plastic production tomorrow, existing plastic would still be around to break down into tiny and then super tiny pieces."
翻译: 研究人员警告说,环境中的微塑料和纳米塑料污染肯定会增加——因为即使我们明天停止塑料生产,现有的塑料仍然会存在,并分解成微小颗粒,然后变成超微小颗粒。
学科网(北京)股份有限公司
$