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giving学术英语

giving学术英语1. The professor is giving a lecture on quantum mechanics.教授正在进行一场关于量子力学的讲座。

2. The researcher is giving a presentation at a conference.研究人员正在会议上进行演讲。

3. The scientist is giving a demonstration of his latest experiment.科学家正在进行他最新实验的演示。

4. The teacher is giving instructions to the students.老师正在给学生们讲解指导。

5. The academic journal is giving valuable insights into the field of neuroscience.这本学术期刊为神经科学领域提供了宝贵的见解。

6. The conference is giving participants the opportunity to network with fellow professionals.会议为参与者提供了与同行专业人士交流的机会。

7. The university is giving scholarships to outstanding students.大学正在向优秀学生提供奖学金。

8. The research institute is giving grants to support innovative projects.研究机构正在提供拨款支持创新项目。

9. The professor is giving feedback to the students on their research proposals.教授正在就学生们的研究计划提供反馈。

10. The academic conference is giving researchers a platform to showcase their findings.学术会议为研究人员提供了展示他们的研究成果的平台。

中考英语生物科技的创新应用练习题40题

中考英语生物科技的创新应用练习题40题1.The new piece of equipment in the biology lab is called a _____.A.microscopeB.telescopeputerD.television答案：A。

显微镜是生物实验室中常见的新设备，而望远镜用于观测天体等，计算机和电视机在生物实验室中一般不是新设备。

2.The latest discovery in biotechnology is a new kind of _____.A.plantB.animalC.cellD.mineral答案：C。

在生物技术中最新发现通常是新的细胞类型等，植物、动物和矿物一般不是生物技术的最新发现重点。

3.The biotech company developed a new _____ for medical research.A.toolB.bookC.penD.pencil答案：A。

生物科技公司会为医学研究开发新工具，书、钢笔和铅笔一般不是生物科技公司开发的用于医学研究的物品。

4.The new biotech product is a _____ that can detect diseases.A.machineB.chairC.tableD.door答案：A。

能够检测疾病的通常是机器，椅子、桌子和门不能检测疾病。

5.The scientist used a special _____ to study the genes.A.instrumentB.clothesC.shoesD.hat答案：A。

科学家用特殊的仪器研究基因，衣服、鞋子和帽子不是用于研究基因的物品。

6.The biotech innovation brought a new _____ to the market.A.foodB.drinkC.medicineD.toy答案：C。

生物科技创新通常会带来新的药品，食物、饮料和玩具一般不是生物科技创新带来的主要成果。

生理学英文练习题-第一章-绪论

CHAPTER 1 INTRODUCTIONSummaryPhysiology is the study of how living organisms work. It is the science that describe the normal functions and their regular patterns of the living organisms. The vast field of physiology can be divided into viral physiology, bacterial physiology, cellular physiology, plant physiology, human physiology,and many more subdivisions. However, the Human Physiology is very important and basic biomedical course for medical students.The body has three fundamental characteristics of living organism which are metabolism, excitability and reproduction. The metabolism include material metabolism and energy metabolism. The material metabolisms of carbonhydrate, lipid, proteins etc. have mainly been learned in BIOCHMISTRY. The energy metabolism will be learned in the 7th Chapter in PHYSIOLOGY. The excitability is very important physiological term, the property of living organisms that permit them to react to stimuli is defined as excitability.Since the normal functions of organs or organ systems was emphasized, homeostasis is another very important physiological concept. Homeostasis signifies a stable and constant status of the internal enviroment in the body of living organism. It is a dynamicbalance of pH, osmostic pressure, temperature, ions concentrations, and so on. Homeostasis is a necessary for the normal functions of cells, organs and organ systems. Therefore, homeostasis is the soul concept of PHYSIOLOGY.The living organism needs to overcome the possible disorder caused by the metabolisms, then homeostasis could be maintained and the normal functions of the living organisms could be gone on. How to maintain the homeostasis? There are mainly three mechanisms to maintain the homeostasis. They are neural regulation, humoral regulation and auto-regulation. Three regulatory patterns exhibit different mechanisms and features.Feedback, a term borrowed from engineering, is a fundamental feature of homeostasis. Feedback regulation anticipates changes in a regulated variable, improves the speed of the body’s homeostatic responses, and minimizes fluctuations in the level of the variable being regulated. In the negative feedback system, a change in the variable being regulated brings about response that tend to push the variable in the direction opposite to the original change. The homeostasis could be maintained after negative feedback regulation. In positive feedback system, an initial disturbance in the system sets off a train of events that increases the disturbance even further. Some special physiological activities in the livingorganism are carried out by the positive feedback system such as processes of giving birth, blood coagulation, micturition.Definition1.Physiology（生理学）2.Acute experiment（急性实验）3.Chronic experiments（慢性实验）4.In vitro（离体）5.In vivo（在体）6.Metabolism（新陈代谢）7.Interstitial fluid（组织间液）8.Internal environment（内环境）9.Homeostasis（稳态）10.Excitability（兴奋性）11.Excitation（兴奋）12.Inhibition（抑制）13.Stimulus（刺激）14.Neural regulation（神经调节）15.Neuro-humoral regulation（神经体液调节）16.Reflex arc（反射弧）17.Unconditioned reflex（非条件反射）18.Conditioned reflex（条件反射）19.Humoral regulation（体液调节）20.Auto-regulation（自身调节）21.Feedback（反馈）22.Negative feedback（负反馈）23.Positive feedback（正反馈）24.Feedforward（前馈）Choose the ONE best answer, then fill the corresponding letter in the blank.( C ) 1. Which one of the following is a physiological process with negative feedback?A.Blood coagulationB.Process of passing urineC.Sino-aortic baroreceptor reflexD.Na+ influx during action potentialE.Process of parturition( D ) 2. Which one of the following is not the property of regulation by hormone?A.Slow in onsetB.Diffuse in natureC.Longer in durationD.Accurate in actionE.Action in overcorrection( D ) 3. Which of the following is not the fundamental characteristic of living organisms?A.MetabolismB.ExcitabilityC.ReproductionD.Passive diffusionE.Adaption( D ) 4. The concept of homeostasisA.includes the concept of an error signal.B.refers to maintaining physiological functions in a stablecondition.C.refers only to the regulation of body temperature.D. A and BE. B and C(A) 5. This term refers to the existence of a stable internal environmentA.HomeostasisB.FeedbackC.AutoregulationE.None of the above(C) 6. Which one of the following provides long-term regulatory control that results in relatively unchanging internal conditions.A.Positive FeedbackB.DiseaseC.Negative FeedbackD.All the aboveE.None of the above(B) 7. Moving your hand away from a hot stove is an example of a basic function calledA.Positive feedbackB.ResponseC.RegulationD.All the aboveE.None of the above(E) 8. On the objects that Physiology researches and observes, which of the following is correct description ?A.Whole body levelan and organ systems levelsD.Molecular levelE.All the above(E) 9. On the methodology applied in Physiology, which of the following is correct?A.Acute experimentB.Chronic experimentC.Experiment in vivoD.Experiment in vitroE.All the above(D) 10. The acceleration of heart beat caused by catecholamine hormones released from adrenal gland after doing exercise, it isA.Neural regulationB.Humoral regulationC.AutoregulationD.Neural-humoral regulationE.None of the aboveQuestions:1.What are the five components of the reflex arc?2.What are fundamental characteristics of living organism?3.Explain the mechanisms of how to maintain the homeostasis inliving organism.4.Contrast the properties of the neural regulation, humoralregulation and auto-regulation.5.Describe the category of the humoral regulation.Answers:Definitions:1.Physiology（生理学）: Physiology is the study of how livingorganisms work, the goal of physiology is to study the normal functions and their regular patterns of organs or organ systems of living organism.2.Acute experiment（急性实验）：Experiment performed is to studythe physiological activities or to observe the reaction to the external interference in short time is called acute experiment.The animals used are oftenly under anesthesia, and the experiments are oftenly destructive and irreversible, even induce the death of animals. The acute experiment include experiment in vivo and in vitro.3.Chronic experiments（慢性实验）: Experiment performed is to studythe physiological activities or to observe the reaction to the external interference in long time is called chronic experiment.The Chronic experiments may be performed on conscious subject for a long period of time after recovery from the operation.4.In vitro（离体）：Experiment is performed on an isolated tissueor organ that is taken out from the body of the animal.5.In vivo（在体）：Experiment is performed on the whole body of theanimal to observe one or some physiological functions of the organ or organ systems.6.Metabolism（新陈代谢）：Metabolism is the one of basiccharacteristics of living organism. It means all the chemical reactions in all the cells of the body, and includes all material and energy transformations that occur in the body. The material metabolism includes catabolic and anabolic reactions.7.Interstitial fluid（组织间液）：The spaces between cells arecalled the interstitutium, the fluid in these spaces is the interstitial fluid.8.Internal environment（内环境）：It is the environment that allcells of the body live in the extracellular fluid, which is called the internal environment of the body.9.Homeostasis（稳态）：The state maintenance of a constancy andbalance in one’s internal environment. It is the soul of the physiology.10.Excitability（兴奋性）：It is the ability of certain kinds of cells(excitable cell) to make response to the stimulus. Essentially, It is the ability of cells to generate action potential.Excitability is a fundamental property to all tissues and cells.11.Excitation（兴奋）：It signifies a beginning of an activity orincrease in physiological activity after stimulus, such as the acceleration of the heart beat after stimulating the sympathetic nerve.12.Inhibition（抑制）：Inhibition is a stop of an activity or adecrease in physiological activity after stimulus, such as the slowing of the heart beat after stimulating the vagus nerve.13.Stimulus（刺激）：Any changes from external or internalenvironmental factors that causes a response in a sense organ or an organism are called the stimulus. It includes the physical, chemical and biological stimuli.14.Neural regulation（神经调节）：The functions of organs or organsystems are regulated by the central nervous system via the reflexes. The reflex is the regular response of effectors to the stimulus based on the reflex arc.15.Neuro-humoral regulation（神经体液调节）：In many cases, theendocrine system is so closely related to the nervous system that it can be regarded as an extension of the efferent limb of the reflex arc . In this instance it is called neuro-humoralregulation.16.Reflex arc（反射弧）：Reflex arc is the pathway in a reflex, itis the basic unit of integrated neural activity, consisting of receptor, afferent nerve, nervous center, efferent nerve and effector.17.Unconditioned reflex（非条件反射）：A fixed reflex whose mechanismmay be supposed to be inherited as its functioning does not depend on previous experience.18.Conditioned reflex（条件反射）：A learned reflex in which thenervous system is trained to produce a new and unusual response to a stimulus.19.Humoral regulation（体液调节）：The functions of organs or organsystems are regulated by the special chemicals released by the endocrine glands or cells, or metabolic products released by the living cells.20.Auto-regulation（自身调节）：In certain cases, a tissue or organcan respond directly to the environmental change, depending neither on nervous nor on humoral control. This form of regulation is called auto-regulation.21.Feedback（反馈）：It is a flow of information along a closed loop.Usually, a constancy of physiological variable requires a feedback mechanism that feeds the output information back to thecontrol system so as to modify the nature of control.22.Negative feedback（负反馈）：A regulated variable is sensed,information is sent to a controller, and action is taken to oppose change from the desire value.23.Positive feedback（正反馈）：With a variable is sensed and actionis taken to reinforce change of the variable, so it promotes a change in one direction.24.Feedforward（前馈）：control mechanisms often sense a disturbanceand can therefore take corrective action that anticipates changes. Conditioned reflexes belong to the feedforward control system.。

2023-2024学年广东省仲元中学高二上学期期中考试英语试题

2023-2024学年广东省仲元中学高二上学期期中考试英语试题Best spring destinations in TibetThe Qinghai-Tibet Plateau has long been an ideal and mysterious destination for visitors who are passionate about exploring remote lands. Here we recommend some of the best tourist destinations in Tibet.Peach Blossom Valley, NyingchiThe peach blossoms i n Nyingchi have been dubbed as “the most beautiful peach flowers in the world”. The annual festival has become a signature tourism event on the plateau. Peach trees bloom depending on the altitude and climate, so visitors will have the chance to enjoy the blossoms.Ranwu LakeRanwu Lake is renowned for its tranquility and its purity of blueness. Scenery along the lakeside varies a good deal with grass, forest, autumn leaves, white waterfowl and colorful pebbles clearly reflected in the mirror-like water. Spring coming, a reflection of green trees dances on the lake and people feel like they are walking into a romantic dreamland.The Yarlung Zangbo River Grand CanyonThe Grand Canyon is the deepest canyon in the world. With a total length of about 500 kilometers, its altitude spans from 7,782 meters to 550 meters around the Yarlung Zangbo River Valley. Visitors can enjoy both the peach blossoms and the snow-capped mountains.Nanyi ValleyNanyi Valley is known as “the highest green mysterious place on Earth”. Surrounded by mountains and shrouded in clouds, Nanyi Valley is an ideal spring destination for visitors, where you can find peach and azalea blossoms everywhere.There are some other attractions. More information, please browse /.1. If you prefer the peace and the clear sky, which destination will you choose?A．Peach Blossom Valley, Nyingchi. B．Ranwu Lake.D．Nanyi Valley.C．The Yarlung Zangbo River GrandCanyon.2. What do Peach Blossom Valley, Nyingchi and Nanyi Valley have in common?A．Appreciating azalea flowers. B．Watching white waterfowl.C．Enjoying peach blossoms. D．Admiring snow-capped mountains.3. Where is this text probably taken from?A．A book review. B．A magazine. C．A travelD．A website.brochure.I arrived home from work, my mind racing. I was scheduled to perform an experiment using a pricey piece of equipment, but I had spent the whole day worrying about the experiment which was on the top of my agenda, and I amazingly longed to shut off my anxious thoughts. So after dinner, I made a cup of hot chocolate, stretched myself on my sofa, and opened a page. Almost instantly, my mind left behind the details of experimental design and stepped into a land of monsters, magic dust, and man-like bears comprising a wonderful world distinct from my daily life. It was exactly what I needed.Growing up, I was virtually never a big fan of novels. My classmates would be crazy about the latest Harry Potter book, while my copy sat collecting dust on a shelf. Instead, I would choose to read through the reference books related to my disciplines for better grades. After I started graduate school, extracurricular reading didn’t appeal to me at all but I spent most of my time on campus digesting research papers and textbooks and my min d couldn’t handle processing fact-filled nonfiction books at home, too. So I knew that I needed to find a way to enjoy reading again.To help me stick with it, I made a New Year’s resolution: I would read two fiction books per month for the entire year. The result was an almost instant appreciation of fiction, along with many unexpected results including ones that have benefited my schoolwork.What surprised me the most was how much I learned. Some of the best books I read were historical fictional stories happening in a realistic historical setting. I learned about life in different countries, as well as struggles people there faced during difficult periods in their histories. The books have helped me build sympathy and understanding, with an unexpected b enefit: I’ve started to think more deeply about the diversity of issues in the scientific community and could serve it, heart and soul.4. What did the author do to wipe out the anxiety?A．He drowned it in chocolate. B．He conducted an experiment.C．He slept on the sofa leisurely. D．He escaped into a fantasy world.5. What does the author mean by the underlined part in paragraph 2?A．Reading novels was a waste of time.B．Reading a good book was time well spent.C．He was too busy to take good care of his books.D．The Harry Potter book wasn’t as good as expected.6. How did the New Year ’s resolution benefit the author?A．More sympathy went out to him.B．His moral values were strengthened.C．He learned much about religious diversity.D．He gained new insight into his academic discipline.7. What’s the best title of the text?A．Reading: A Lifelong Hobby B．The Power of Research PapersC．Novels: Love at Second Sight D．The Benefits of History Reading People perform graceful moves, all while standing on a bamboo strip in the river. You may think it’sa scene from an art movie, but actually it is a form of intangible cultural heritage: bamboo drifting(独竹漂).Bamboo drifting dated back to over 2,000 years ago in the Chishui River area of Guizhou. During the Qin Dynasty, the Bozhou district of Zunyi city was known for its high-quality nanmu. It was in great demand by the royal court more than 2,000 kilometers to the north. With no transportation along the Chishui River, people had to stand on one log (原木) to drift down the river. Later, local people began to compete along the way and the game of wood drifting was born. In the Qing Dynasty, wood drifting became bamboo drifting because of bamboo's lower price.Now, communities in Guizhou hold bamboo drifting competitions every year during Dragon Boat Festival. Due to the great strength and balance it takes for one to master this act, bamboo drifting was included in the national intangible cultural heritage list.Yang Liu, 24, is an inheritor of bamboo drifting. Yang said the most difficult part of bamboo drifting was keeping one’s balance. “I fell in the water several times when I was practicing.” she told.“Usually, the bamboo under your feet is about 9 mete rs long, and the bamboo in your hands is about 5 meters. If the length or diameter of the bamboo is not long enough, it will not be buoyant (有浮力的）enough to float. So we should fight against the water flow by continuously changing the angle (角度).” Yang adde d.But the love for the ancient skill keeps Yang going. In the past 17 years, she has drifted all year round, in winter cold and summer heat.Yang also produces new ideas when spreading the culture of bamboo drifting. For example, she connects dance with bamboo drifting to make it more graceful and wears hanfu when performing, creating a beautiful feel. In 2020. Yang registered on social media platforms and posted her videos. “I want to spread it to other countries so that more people around the world wil l like Chinese culture.” she told China Daily.8. What’s the main idea of Paragraph 2?A．The use of bamboo drifting. B．The birthplace of bamboo drifting.C．The acting skills for bamboo drifting D．The historical development of bamboodrifting.9. Why was bamboo drifting listed into the national intangible cultural heritage?A．It spreads Chinese culture to the worldB．It enjoys great popularity among Guizhou people.C．It’s physically and technically demanding for performers.D．It’s an important activity during the Dragon Boat Festival.10. What is the most challenging for bamboo drifting?A．Keeping one’s balance.B．Performing graceful moves.C．Choosing bamboos of proper size. D．Continuously changing the angle11. Which of the following best describes Yang Liu?A．Responsible and brave. B．Creative and determined.C．Hard-working and outgoing. D．Knowledgeable and competitive. Speaking to The Guardian at the Third International Conference on Human genetic editing, ProfJennifer Doudna, a 2020 Nobel chemi stry prize winner, said, “We’ll definitely be seeing genetic therapies (治疗；疗法) for heart diseases, brain diseases, and eye conditions.” But she warned, “One of the riskiest and most realistic potentials is that trials of gene editing in embryos (胚胎) will p robably follow.”The technology can and will smooth the way for therapies for enhancing healthy humans, to make them faster, smarter, stronger, or more resistant to diseases, though enhancement would be more difficult than mending single faulty genes. According to the experts at the conference, including geneticists, public health researchers and philosophers, a wave of gene editing therapies were expected to reach clinics in the next five years or so. The therapies will correct disease-causing disorders in tissues and organs and become mature as researchers work out how to make multiple edits at once and reach difficult areas such as parts of the brain.However, Doudna and the other experts also expressed their concern that the next generation of advanced genetic therapies raises serious issues that must be tackled to ensure the technology benefits patients and society. Prof Françoise Baylis, a philosopher at Dalhousie University in Canada, was worried that in addition to the sure sign of genetic enhancement coming, the cost of the new therapies would be too high for much of the global population. Prof Mayana Zatz, at the University of São Paulo, Brazil, said she was against editing genes for improvement but added, “There will always be people ready to pay for it in private clinics and it will be difficult to stop.”One conclusion almost all experts shared was that while all these potential problems and risks did exist, a future full of promise would definitely be witnessed. After all, it is not technology itself but ways in which people employ it that decide the result.12. Which is not considered as beneficial by Prof Jennifer Doudna?A．Gene editing for diseases in brain.B．Gene editing for diseases in eyes.C．Gene editing for diseases in heart.D．Gene editing for diseases in embryos.13. What can we infer in paragraph 2?A．Genetic therapies are more difficult than mending.B．Society will benefit from genetic therapies entirely.C．Genetic therapies have already reached some clinics.D．All disorders c an’t be corrected by genetic therapies.14. What did Prof Françoise Baylis and Prof Mayana Zatz agree on?A．The cost of the new therapies would be too high.B．Editing genes for improvement is promising.C．Editing genes for improvement is unavoidable.D．Editing genes for improvement should carry on.15. What is the attitude of most experts towards genetic therapies in the text?A．Opposed. B．Objective. C．Supportive. D．Unconcerned. Breathing is a basic human function. 16 . You may be surprised to learn that there are better ways to breathe than others.It’s easy to get in the habit of taking short, shallow breaths. I’s important to train yourself to breathe deeply since deep breaths are better at oxygenating your body and can actually help reduce stress. Take a moment to pay attention to your breathing. 17 , you’re likely to take shallow breaths. Try practicing deep breathing for several minutes every day. Over time, it will become easier and feel more natural.Schedule regular check-ins to stay focused on your breathing. Since you don’t usually realize that you’re breathing, it can be tricky to notice whether or not you’re doing it properly. Try to check-in at the same time every day, like each morning and lunchtime, so that it becomes part of your routine.18 . For example, if you notice that you’re taking shallow breaths whenever you check on your breathing, you’ll know to work on taking deeper breaths from your diaphragm (隔膜).19 . To make deep breathing easier, try practicing a couple of breathing exercises so you can use them the next time you’re feeling overwhelmed. For example, you can quickly relax when you’re feeling stressed by taking deep breaths through your nose and then sighing out loud on your exhales (呼出). If you ever feel like you’re on the edge of having a panic attack, take a deep breath in for 3 seconds, hold it for 3 seconds, and then slowly exhale through pursed lips. 20 .Deep breathing exercises help you take the time out of your day to focus on just your breaths. This can help you relax in the moment and improve your form when breathing throughout the day.In 1973, I was teaching elementary school. Each day, 27 kids ______ ”The Thinking Laboratory“. That was the ______ students voted for after deciding that ”Room 104“ was too dull.Freddy was an average ______, but not an average person. He had the rare balance of fun and compassion (同情). He would ______ the loudest over fun and be the saddest over anyone’s______.Before the school year ended, I gave the kids a special ______, T-shirts with the words ”Verbs Are Your ______“ on t hem. I had advised the kids that while verbs (动词) may seem dull, most of the ______ things they do throughout their lives will be verbs.Through the years, I’d run into former students who would provide ______ on old classmates. I learned that Freddy did several jobs after his ______ from high school and remained the same caring person I met forty years before. Once, while working overnight at a store, he let a homeless man______ in his truck. Another time, he ______ a friend money to buy a house.Just last year, I was ______ a workshop when someone knocked at the classroom door. A woman excused the interruption and handed me an envelope. I stopped teaching and ______ it up. Inside were the ”Verbs“ shirt and a ______ from Freddy’s mother. ”Freddy passed awa y on Thanksgiving. He wanted you to have this.“I told the story to the class. As sad as it was, I couldn’t help smiling. Although Freddy was taken from us, we all took something from Freddy.21.A．built B．entered C．decorated D．ran22.A．name B．rule C．brand D．plan23.A．scholar B．student C．citizen D．worker24.A．speak B．sing C．question D．laugh25.A．misfortune B．disbelief C．dishonesty D．mistake26.A．lesson B．gift C．report D．message27.A．Friends B．Awards C．Masters D．Tasks28.A．simple B．unique C．fun D．clever29.A．assessments B．comments C．instructions D．updates30.A．graduation B．retirement C．separation D．resignation31.A．wait B．sleep C．study D．live32.A．paid B．charged C．lent D．owed33.A．observing B．preparing C．designing D．conducting34.A．opened B．packed C．gave D．held35.A．picture B．bill C．note D．diary阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

2023-2024学年山西省吕梁市高二上学期11月期中英语试题

2023-2024学年山西省吕梁市高二上学期11月期中英语试题Sequoia National ParkLocated about 80 miles east of Fresno, California, in the southern Sierra Nevada mountain range, Sequoia National Park was established in 1890 as a measure to protect the giant trees from being cut down, making it America’s second national park.Highlights of the park are, of course, the trees. Perhaps the most famous is the General Sherman Tree, which has rightfully earned th e title of the world’s largest tree (it stands 275 feet tall and its base measures more than 36 feet in diameter).·Best Months to VisitThe best time to visit Sequoia National Park is June through August, when the weather is fine. The park is open 24/7, year-round, but there are certain challenges during winter and spring seasons. Beginning in September, the park reduces its ranger(护林员)-led programming and certain facilities cut their hours.·What You Need to KnowDon’t rely on technologyCell service in many areas of the park is spotty, meaning your GPS or smartphone may not work. Plan to pick up paper maps at the park’s visitor centers.Check the weatherSome areas in the park might be closed or you might need snow tires or chains to get through, even in the spring and fall. Check the park’s website for the most up-to-date information.Gas upNo gasoline is sold within the park, so make sure you have a full tank before you start your journey.Pay to playA vehicle pass to the park costs $35; an individual pass, for an adult on a bike or on foot, costs $20.1. What is Sequoia National Park best known for?A．Its service. B．Its trees. C．Its covering area. D．Its history.2. Which of the following is the best time to visit Sequoia National Park?A．July. B．September. C．October. D．December.3. How much should a couple pay if they visit Sequoia National Park by bike?A．$20. B．$35. C．$40. D．$70.When a woman bought a painting that appeared to bear the signature (签名) of N. C. Wyeth at a store in 2017, she joked that the 4-dollar item might actually be a real work by the Maine painter. Her joke was no laughing matter, and the painting is now estimated to fetch as much as $250,000 at auction (拍卖会) in September.According to experts at Bonhams Skinner auction house, the seller unknowingly bought the work at a Savers store in Manchester, New Hampshire, while searching for frames to reuse. At that time, the Wyeth painting had been put against a wall along with mostly damaged posters and prints.The woman took the piece home, and then made a quick Internet search but could not find any information about the work. After hanging the painting in her bedroom for several years, she eventually stored it in her study.She rediscovered the painting this past May while doing cleaning, and this time posted images of the work on an online page titled “Things Found in Walls”, which is devoted to “stories of things you have found in walls, dug up in your backyard, or in that spare house across the street from your grandma’s”, according to the group’s description.Comments on the post led her to contact Lauren Lewis, a former curator who worked with paintings by three generations of the Wyeths: N. C. Wyeth, his son Andrew Wyeth and his grandson Jamie Wyeth. So she did.“After seein g the piece in person, Lewis was 99% certain it was authentic instead of a copy,” she told The Boston Globe. “While it certainly had some small scratches (划痕), it was in remarkable condition considering none of us had any idea of its journey over the last 80 years.”Wyeth often produced cover art for publishers of periodicals and novels. The painting up for sale in September is one of four he completed for a 1939 edition of Helen Hunt Jackson’s book Ramona, originally published in 1884. In it, Wyeth painted the young title character facing her elderly mother.4. What was the woman’s joke?A．The storekeeper was lazy and foolish.B．The painting she bought might be valuable.C．The signature of N. C. Wyeth was wrong.D．The Maine painter would appear at auction.5. How did the woman deal with the painting shortly after she got home?A．She put it in her study. B．She sold it to Lauren Lewis.C．She sent it to her friend. D．She searched online about it.6. What does the underlined word “authentic” in paragraph 6 mean?A．Real. B．Damaged. C．Famous. D．Stolen.7. What is the text mainly about?A．A world-famous artist in the US. B．A novel by Helen Hunt Jackson.C．A painting getting its recognition. D．An expert going on a treasure hunt. Clarence DeMar would train for races by running to and from his job in Boston, up to 14 miles a day. His hard work paid off. He won the 1911 Boston Marathon and competed in the next year’s Olympics.But at the time, many people and medical experts thought prolonged (持续很久的) exercise was dangerous. A doctor, detecting a heart murmur (杂音), warned DeMar to quit the sport.DeMar proved them all wrong—both during his lifetime and after—in ways that helped change people’s minds about the benefits of exercise.He became one of the most noticeable distance runners of his day, competing in two more Olympics and winning the Boston Marathon a record seven times between 1911 and 1930. He kept winning races well into his 40s. The press called him “Mr. DeMarathon”.After he died of cancer at age 70, two Boston-area experts took a look at his heart. What they found were different from all those terrifying warnings. Not only was DeMar’s heart in good shape, but his arteries(动脉) were also two to three times the size of a typical person’s — reducing the risk of a fatal blockage. As for that heart murmur the doctor warned DeMar about? Experts say, “We now know that highly trained athletes often have a heart murmur, and it’s normal.”The study, published in the New England Journal of Medicine in 1961, made the front page of The Boston Globe. “It was one of those first studies that taught us that the human body can really handle, very healthfully, lots and lots of exercise,” said Dr. Aaron Baggish, a professor at the University of Lausanne in Switzerland and the former medical director of the Boston Marathon.The popularity of running exploded in the decades after DeMar’s death, as further research backed that up. It’s now well-established that regular exercise makes us healthier and prolongs our lives. The current national guidelines recommend at least two and a half to five hours of moderate exercise like walking each week, or an hour and fifteen minutes to two and a half hours of vigorous activity like running—and research suggests more is generally better.8. Why did the doctor advise DeMar to give up prolonged exercise?A．He was in poor health. B．He had a heart murmur.C．He must focus on his job. D．He was unable to finish it.9. What was DeMar’s attitude to the doctor’s warning?A．Favorable. B．Worried. C．Mistrustful. D．Unclear.10. What did the two Boston experts find about DeMar?A．His heart was in bad shape. B．He died from too much exercise.C．He suffered from artery blockage. D．He benefited from lots of exercise.11. What does the last paragraph mainly talk about?A．Advice on exercise. B．Several forms of exercise.C．The advantages of walking. D．The purpose of the research.Artificial intelligence (AI) tools designed to operate at human levels have greatly expanded in popularity over the past year. These include OpenAI’s ChatGPT, Google’s Bard and Microsoft’s AI-powered search engine Bing. Such tools, also known as chatbots or generative AI, are computer-powered systems. They are designed to interact smoothly with humans and perform high-level writing and creative work.In recent months, these tools have demonstrated an ability to produce high-quality work. This has led some technology experts to warn that generative AI systems could end up replacing workers in many industries.This year, researchers at Harvard Business School and other organizations carried out an experiment. It aimed to test how well AI tools could help workers perform their usual duties or tasks. It involved more than 700 business advisors, called consultants, from Massachusetts-based Boston Consulting Group.Harvard Business School recently published the results from the experiment in a working paper. The main findings suggest that AI tools like ChatGPT can greatly improve worker performance. For example, researchers found that, on average, workers who used OpenAI’s latest ChatGPT 4 tool completed 12 percent more tasks than non-ChatGPT users. Tasks carried out with help from the AI technology were completed 25 percent faster. And the team found the quality of work performed by consultants using ChatGPT 4 increased by about 40 percent.However, the paper also noted areas where the performance of consultants using ChatGPT 4 dropped. The researchers said this was especially true with tasks the AI tool was not good at completing. “Of tasks the AI was good at, the experiment showed it significantly improved human performance,” the paper said. “But for tasks ChatGPT 4 was not right for, humans relied too much on the AI and were more likely to make mistakes.”The team suggests one of the biggest barriers to companies effectively using AI is not knowing which tasks can be completed best with the technology. Finding this out will require businesses to carry out thoughtful research and training efforts in order to find the right mix of AI and human-level work.12. What is a purpose of designing AI tools according to the text?A．To perform low-level writing. B．To replace technology experts.C．To finish high-quality work. D．To improve interpersonalcommunication.13. Why does the author mention ChatGPT 4 in paragraph 4?A．To explain the disadvantages of AI tools.B．To show how well AI tools could help workers.C．To forecast changes in the future working environment.D．To compare the work performance between humans and AI tools.14. What can be learned from the last paragraph?A．Companies need to balance the work of AI and humans.B．It is useless to train so many workers to learn to use AI.C．It is easy to find the right mix of AI and human-level work.D．Research on using AI effectively has been made by businesses.15. What is the best title for the text?A．ChatGPT Can See, Hear and Speak NowB．Ways to Improve Your Performance at WorkC．The Fast Development of Artificial IntelligenceD．AI Tools Help but also Harm Worker PerformanceBody language can reflect our confidence level. 16 and another way when we’re nervous. At a glance (看一眼), most people can tell if we’re confident or not. So we should learn some tips to show confidence through body language so that we always appear confident and ready.17The first tip to show confidence with body language is to keep your hands out of your pockets. We often put our hands in our pockets when we’re unsure of ourselves. And that’s how other people will view us.Keep your eyes forward18 , it often feels natural to lower your head slightly and watch your step. However, this gesture communicates to others that you don’t want to interact. And if you’re not careful, you might get into the habit of doing it all the time. So keep your head up and your eyes forward, even when you’re walking down the street by yourself.SmileTry this as an experiment: Smile at someone as you pass by them on the street or walk around the office. 19 . Now wouldn’t you like to have that effect on people all the time?Firm handshakesThere are few things worse than reaching out your hand during an introduction and getting a handshake which is not firm enough. Don’t be that guy. Instead, hold the other person’s hand firmly and confidently. Of course, a handshake is not a contest. 20 .In 2013, Alie Ward’s life was falling apart. Her dad was diagnosed (诊断) with a rare form of cancer, and she was feeling increasingly ________ in her job.To distract herself from her troubles, she liked to find and take pictures of insects. Sometimes, if she found one she ________ liked, she’d post it online. Those ________ attracted the attention of a woman named Lila Higgins, who worked as an entomologist (昆虫学家) at the local natural history museum. After ________ Ward’s pictures, Higgins reached out to see if she would want a ________ of the museum’s insectary.When Ward arrived at the museum, Higgins ________ her and led her through the different exhibits.For the first time in ages, Ward felt herself ________. Higgins noticed her enthusiasm and ________ Ward to volunteer at the museum for a few hours every week.“But at the time I really felt like I didn’t have a lot to ________ many people. That’s because I felt ________ those days and cried constantly,” Ward remembered.Despite her ________, Ward dec ided to sign up. Every Wednesday she’d arrive at the ________. And with each volunteer shift, she felt a little bit ________.“It gave me this sense of purpose. It helped me reconnect with my ________ of science and nature that I’d always had,” Ward said.Soon, Ward quit her original job and started ________ in science media. She now is the creator and host of a podcast called Ologies. Ward had Higgins on the show as her first guest.21.A．curious B．incredible C．unhappy D．ashamed22.A．gradually B．particularly C．hardly D．mostly23.A．posts B．troubles C．volunteers D．words24.A．printing B．drawing C．seeing D．passing25.A．place B．treasure C．director D．tour26.A．defeated B．greeted C．warned D．resisted27.A．give up B．break down C．check in D．light up28.A．caused B．reminded C．advised D．begged29.A．teach B．pay C．award D．offer30.A．painful B．independent C．proud D．excited31.A．efforts B．doubts C．injuries D．smiles32.A．party B．hospital C．office D．museum33.A．better B．embarrassed C．anxious D．healthier34.A．list B．story C．love D．hope35.A．playing B．working C．thinking D．waiting阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

2022年山东省烟台市中考英语试题(含答案解析)

2022年烟台市初中学业水平考试英语试题温馨提示：1．本试卷共10页，满分120分；考试时间120分钟。

考试结束后，请将本试卷和答题卡一并交回。

2．答题前，务必用0.5毫来黑色签字笔将自己的姓名、准考证号、座位号填写在试卷和答题卡指定的位置上。

3．选择题选出案后，用2B铅笔把答题卡上对应题目的答案标号涂黑；如需改动，用橡皮擦净后，再选涂其它答案标号。

4．非选择是必须用0.5毫米黑色签字笔作答，答震必须写在答题卡指定区域内相应位置；如需改动，先划掉原来的答案，然后再写上新的答案；不能使用涂改液、胶带纸、修正带。

5．在试卷上和答题卡指定区域外的答案无效。

第一部分阅读理解（共两节，满分35分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从短文后每题所给的A、B、C和D四个选项中，选出最佳选项。

A1．If Tom finds the cat, what number should he call?A. 719 873 466.B. 719 533 857.C. 719 767 472.D. 719 543 676. 2．How many people are living in Blue House now?A. One.B. Two.C. Three.D. Four.3．When should one work in the City Museum shop?A. On Mondays.B. On Tuesdays.C. On Thursdays.D. On Sundays.BFive young girl students at Shanghai Theatre Academy have become famous online by singing pop songs to the tunes (曲调) of Beijing Opera.Li Wei, a young man, likes to watch the students’ videos. He said, “Thanks to them, I have got a better understanding of my parents’ deep love for Beijing Opera.”The students, mainly roommates from Room 416 at the academy, are known on the Internet as the “416 girls”. They have put their singing on short-video platforms (平台) since 2019.Over the past three years,the students have gradually won a large number of fans. In one of their videos, which has been watched more than 50 million times and received 2.5 million “likes”, they sing the pop song Tan Chuang to a Beijing Opera tune.Young people such as the “416 girls” have increased audience (观众) numbers for Beijing Opera, which has a history of more than 200 years.Guo Jing, 27, a primary school teacher, has about 2.5 million followers on the Douyin short-video platform. In her videos, she performs ancient songs while dancing to Beijing Opera movements, or discusses interesting stories about the art form.“I want to be one of the best art vloggers, and I see it as m y task to shorten the distance between art and life,” Guo said.Pan Yan, a leader of the China Performance Industry Association, said, “Beijing Opera has a special charm (魅力) that people can sense without having to understand it. Audience experience the art form’s beauty by watching short videos, and they also spread news and knowledge about Beijing Opera after watching videos.”4．What do Li Wei’s words mean?A. He used to love Beijing Opera as a child.B. His parents enjoy Beijing Opera very much.C. He did not understand the “416 girls” at first.D. His parents don’t like to watch the students’ videos.5．Why is the group of the five girls called “416 girls”?A. Their first video received 416 “likes”.B. They had only 416 fans at first.C. They started their videos on April 16.D. Most of them live in Room 416.6．What do the “416 girls” and Guo Jing have in common?A. They get more people to enjoy Beijing Opera.B. They try to learn the history of Beijing Opera.C. They have got 2.5 million followers on Douyin.D. They’re good at making up Beijing Opera stories.7．What can we learn from what Pan Yan said in the last paragraph?A. It is hard to sense the special charm of other operas.B. Audience need to understand Beijing Opera completely.C. Short videos help spread news and knowledge of Beijing Opera.D. Short videos are the best way to enjoy the beauty of Beijing Opera.CThe music band Coldplay is taking actions to protect the environment. This includes using their fans’ energy to help provide electricity for their performances. In this way, they use electricity without adding carbon gases (碳气体) to the air. The band hopes to cut the amount of CO2given out by its business activities by 50 percent.The Coldplay stars have added special dance floors and energy-storing bicycles to their latest world tour performance. The purpose is to get fans to help produce electricity by dancing and riding. Each dance floor can support many people. It creates electricity when people move on it. Each of the bikes can create an average of 200 watts (瓦特) of electricity. In order to encourage fans to dance or ride more during the performance, they even have competitions to find out which group of fans can create the most electricity.“Being green is a good business model. That’s what we’d like to show,” said Coldplay lead singer Chris Martin. “The changes will bring a sense of belonging to the fans. Everything in our show is planned to bring everyone into the same group, singing together. It makes us feel part of a community.”Coldplay has taken other steps to protect the environment. One of its tour stages (舞台) uses recycled steel. The band also hopes to set up the world’s first tour battery (电池) system, made from 40 recycled electric car batteries. The hope is to power the whole show with batteries.“It’s very expensive to try these things for the first time,” said Martin, “but we are very happy that we are changing.”Coldplay is just one music group working to help the environment. Some other famous bands are also taking such steps.8．What does Coldplay use their fans’ energy to do?A. To create 200 watts of electricity.B. To provide power for their shows.C. To cut their business activities by 50%.D. To make their performances wonderful.9．What does the underlined word “It” in the second paragraph refer to (指代)?A. The floor.B. The band.C. The stage.D. The bicycle. 10．How does Coldplay encourage fans to dance and ride more?A. By helping them to buy bicycles.B. By living in the same community.C. By traveling around the world with them.D. By having electricity-creating competitions.11．Which ways are introduced to protect the environment in the passage?①Riding energy-storing bicycles. ②Driving or taking electric cars.③Recycling electric car batteries. ④Building stages with recycled steel.A. ①②③B. ②③④C. ①③④D. ①②④DFor the first time, scientists have grown plants in moon soil (土壤) collected by NASA’s Apollo astronauts.The scientists had no idea if anything would grow in moon soil. They wanted to see if it could be used to grow plants. Robert Ferl of the University of Florida was surprised with the results. “Plants actually grow in moon soil,” he said.Ferl and other researchers planted thale cress, a small flowering plant, in moon soil. The good news was that all of the seeds (种子) grew. The bad news was that after the first week, they grew slowly. Most of the plants ended up small and not fully developed.Scientists found that the longer the soil was on the moon, the worse the plants seemed to grow. The soil collected by the Apollo 11 was the least helpful for growth. It was a couple billion years longer. One solution might be to use younger soil on the moon, like lava (火山岩浆), or put in some special nutrient (营养物) mixtures.Only 382 kilograms of moon rocks and soil were brought back by the six Apollo groups that landed on the moon. Early last year, NASA finally gave out 12 grams of soil for the planting experiment (实验).The Florida scientists hope to reuse their moon soil later this year, planting more thale cress before possibly moving on to other plants.A scientist said, “Growing plants is a big step forward. The real next step is to go and do it on the surface of the moon.”12．What did Robert Ferl think of the results of the planting experiment?A. Surprising.B. Disappointing.C. Awful.D. Regretful. 13．What do the Florida scientists plan to do this year?A. To find some younger soil on the moon.B. To make some special nutrient mixtures.C. To plant some other plants in new moon soil.D. To use the moon soil again in the experiment.14．What may be the real purpose of the planting experiment?A. To collect more soil from the moon.B. To send more scientists to the moon.C. To grow plants on the moon surface.D. To plant more thale cress on the moon. 15．What can we infer (推断) from the passage?A. Most of the plants grew well after two weeks.B. The soil collected by the Apollo 11 is the oldest.C. It is easy for astronauts to bring back moon soil.D. Scientists found no ways to improve the experiment.第二节（共5小题，每小题1分，满分5分）阅读下面短文，从短文后的选项中，选出可以填入空白处的最佳选项。

高中英语学术前沿单选题30题

高中英语学术前沿单选题30题1. In academic research, the data should be analyzed ______ to draw accurate conclusions.A. carefullyB. carelesslyC. quicklyD. slowly答案：A。

本题考查副词的用法。

carefully 表示“仔细地”，在学术研究中，为了得出准确的结论，数据应该被仔细分析。

carelessly 表示“粗心地”，不符合学术研究的要求。

quickly 表示“快速地”，但重点不是速度而是仔细程度。

slowly 表示“缓慢地”，也不符合学术研究追求准确的目的。

2. The scientist ______ a new theory to explain the phenomenon.A. put forwardB. put offC. put upD. put down答案：A。

put forward 意为“提出”，科学家提出新理论来解释这一现象，符合语境。

put off 表示“推迟”；put up 表示“张贴；搭建”；put down 表示“写下；镇压”，均不符合。

3. The experiment was ______ because of the lack of funds.A. cancelledB. continuedC. completedD. controlled答案：A。

cancelled 表示“取消”，由于缺乏资金实验被取消。

continued 表示“继续”；completed 表示“完成”；controlled 表示“控制”，均不符合缺乏资金的情况。

4. The results of the study ______ the previous hypothesis.A. confirmedB. contradictedC. supportedD. ignored答案：B。

高三英语科学前沿动态单选题30题

高三英语科学前沿动态单选题30题1. In the latest scientific experiment, the researchers found that the substance reacts ______ with certain chemicals.A. stronglyB. weaklyC. rapidlyD. slowly答案：A。

本题考查副词的词义辨析。

A 选项“strongly”表示“强烈地”，符合实验中物质反应的程度；B 选项“weakly”表示“微弱地”，与实验情况不符；C 选项“rapidly”侧重速度快；D 选项“slowly”侧重速度慢，均不符合物质与化学物质反应的强度描述。

2. The new scientific experiment aimed to discover how the cells ______ under extreme conditions.A. behaveB. behavesC. behavingD. to behave答案：A。

本题考查动词形式。

“how the cells behave”是宾语从句，从句中主语“the cells”是复数，谓语动词用原形，A 选项正确；B 选项“behaves”是第三人称单数形式，错误；C 选项“behaving”是现在分词形式，不能作谓语；D 选项“to behave”是动词不定式，不能作谓语。

3. During the scientific experiment, they observed that thetemperature ______ steadily.A. roseB. risesC. is risingD. has risen答案：A。

本题考查时态。

“During the scientific experiment”是过去的时间段，要用一般过去时，A 选项“rose”是过去式，正确；B 选项“rises”是一般现在时的第三人称单数形式；C 选项“is rising”是现在进行时；D 选项“has risen”是现在完成时，均不符合过去时间段的语境。

Acomparative study onthehydro-mechanical behavior of compacted

A comparative study on the hydro-mechanical behavior of compacted bentonite/sand plug based on laboratory and ﬁeld in ﬁltration testsQiong Wang a ,Anh Minh Tang a ,Yu-Jun Cui a ,c ,⁎,Jean-Dominique Barnichon b ,Wei-Min Ye ca Ecole des Ponts ParisTech,Franceb Institut de Radioprotection et de SûretéNucléaire (IRSN),France cTongji University,Chinaa b s t r a c ta r t i c l e i n f o Article history:Received 1December 2012Received in revised form 15May 2013Accepted 19May 2013Available online 25May 2013Keywords:Small-scale test In situ experimentBentonite/sand mixture Technological void Swelling pressure Swelling stainSEALEX is a research project aiming at identifying the key factors that affect the long-term performance of bentonite-based sealing systems with an initial technological void.In this context,a series of in situ experiments have been performed in ﬁeld conditions.Meanwhile,a small-scale test (1/10)was carried out in controlled conditions in the laboratory,aiming at providing useful information for analyzing the in situ tests in terms of sat-uration time and sealing effectiveness.In this paper,the results of the small-scale test are presented along with the results from the ﬁrst in situ test (PT-N1).It was observed that during the saturation process,the evolution of the injected water volume followed a hyperbolic relationship with time in both the laboratory and ﬁeld condi-tions.In the laboratory conditions,a decrease in axial swelling pressure occurred due to ﬁlling of the technolog-ical void.By contrast,this decrease has not been observed in the ﬁeld parison of the injected water and the axial swelling pressure between the two different scales enabled the de ﬁnition of a same time upscaling ratio of 2.5(in situ experiment/small-scale test).Accordingly,the saturation duration of the in situ experiment was estimated to be equal to two years.For the small-scale test,a swelling strain evolution rate of 0.588mm/day was identi ﬁed in the case of in ﬁltration from two sides of the sample.This is useful when predicting the evolution of swelling strain in the case of failure of the sealing plug.After ﬁlling of an additional 20%void,a swelling pressure of 0.18MPa was obtained,indicating the favorable sealing capacity of the material after ﬁlling the technological void.©2013Elsevier B.V.All rights reserved.1.IntroductionIn the design of deep geological repository for high level long lived radioactive wastes,compacted bentonite-based materials are often considered as buffer/sealing materials.These materials are expected to exhibit a swelling pressure high enough to ful ﬁll their buffer/sealing functions.Numerous laboratory studies have been conducted to assess the performance of buffer/sealing materials (e.g.Delage et al.,1998;Lloret et al.,2003;Romero et al.,2005;Lloret and Villar,2007).Vari-ous experiments were also performed in the underground research laboratories (URL)(TSX at Manitoba,Canada;FEBEX at Grimsel,Switzerland;RESEAL at Mol,Belgium;KEY at Bure,France,etc.).Re-cently,IRSN (Institut de Radioprotection et de SûretéNucléaire,France)has launched the SEALEX project aiming at identifying and quantifying the key factors related to the long-term performance of bentonite-based sealing systems taking into account an initial technological void.This project consists of a series of in situ experiments in the Tournemire URL,and a small-scale test (1/10)in the laboratory.The in situ experimental program was purposefully built allowing systematical exploration of the effects of technical speci ﬁcations,design,construction,defect,etc.,by changing a single parameter each time.As a reference case (see Barnichon and Deleruyelle,2009;Barnichon et al.,2012for more details),the ﬁrst test PT-N1with a clay core made up of pre-compacted monolithic disks of MX80bentonite/sand mixture (70/30in dry mass)has been conducted in the URL of Tournemire.Due to the low permeability of this material,saturation is expected to be reached in several years (see Barnichon et al.,2012).During the saturation process,the injected water volume,total pres-sure,pore water pressure and relative humidity changes have been monitored at several positions within the plug.After the saturation stage,hydraulic tests will be performed to determine the overall hy-draulic properties (permeability,occurrence of leakage)of the sealing system.In addition to this reference case,three other tests are designed to quantify the impact of the technical speci ﬁcation and design of the sealing plug by changing the intra-core geometry (jointed instead of monolithic disks),core composition (MX80/sand ratio)and core condi-tions (compacted in ﬁeld instead of pre-compacted).Moreover,to in-vestigate the effect of altered conditions,an additional test is designedEngineering Geology 162(2013)79–87⁎Corresponding author at:Ecole des Ponts ParisTech,6-8av.Blaise Pascal,CitéDescartes,Champs-sur-Marne,77455Marne la Vallee,France.Tel.:+33164153550;fax:+33164153562.E-mail address:yujun.cui@enpc.fr (Y.-J.Cui).0013-7952/$–see front matter ©2013Elsevier B.V.All rights reserved./10.1016/j.enggeo.2013.05.009Contents lists available at SciVerse ScienceDirectEngineering Geologyj o u rn a l ho m e p a g e :w w w.e l s e v i e r.c o m /l o c a t e /e n g g e oto simulate an incidental decrease of swelling pressure caused by failure of the conﬁning structure.Based on the design of the in situ experiments,a laboratory small-scale test(1/10)was performed,focusing on the recovery capacity of the bentonite-based seal with technological voids.The ma-terial identical to that used in test PT-N1was used(MX80bentonite/ sand mixture).A conﬁning cell of stainless steel was used to simulate the constant-volume boundary conditions.After the initial saturation process as in the PT-N1in situ experiment,the seal evolution upon a conﬁnement failure was simulated by allowing a given amount of free swell.This free swell was followed by a last stage of wetting under con-stant volume conditions.To assess the sealing capacity,the injected water volume,axial swelling pressure and swelling strain were moni-tored in different stages.It was expected to obtain useful information from the laboratory small-scale test for analyzing theﬁeld tests in terms of saturation time and sealing effectiveness.In this paper,the results of the small-scale test are presented along with the results from the in situ test(PT-N1).An upscaling ratio was obtained by comparing the injected water volume and the axial swelling pressure evolution between the laboratory andﬁeld condi-tions.The time needed to reach the stabilization of axial swelling pressure for the in situ test(PT-N1)as well as the evolution of swell-ing strain and swelling pressure in the case of failure of the conﬁning structure were estimated accordingly.2.Materials and methods2.1.MaterialsThe soil studied is a compacted MX80/sand mixture with a pro-portion of70/30in dry mass.The bentonite is from Wyoming,USA, with a high content of montmorillonite(80%).It has a liquid limit of 575%,a plastic limit of53%and a unit mass of2.77Mg/m3.The cation exchange capacity(CEC)is76meq/100g(83%of Na+).The quartz sand used in the mixture comes from Eure and Loire(France)with a unit mass of2.65Mg/m3.It was sieved at2mm prior to being mixed with the bentonite.The water used has the same chemical composition as the pore water of the Callovo-Oxfordian claystone from the ANDRA URL in Bure(France),namely synthetic water(Wang et al.,2012,2013).It was obtained by mixing the corresponding chemical compounds (see Table1)with distilled water using a magnetic stirrer until full dissolution.2.2.SEALEX in situ test(PT-N1)As mentioned above,the in situ experiment(PT-N1)has been conducted in the Tournemire URL excavated in Toarcian claystone.A horizontal borehole(0.60m in diameter)was drilled for this purpose. Fig.1shows the layout of the experiment.A seal made up of compacted MX80/sand mixture was sandwiched between two porous plates, allowing water inﬂow from two water reservoirs(i.e.upstream and downstream).The14.33%annular technological void(volume of void/ volume of borehole)was deﬁned by adopting a smaller initial diameter (0.555m)of the pre-compacted seal as compared to the borehole diameter(0.60m).The upstream plate is in direct contact with the host-rock while the downstream one is retained by a conﬁning system ensuring a constant-volume condition.A packer-like device was used to prevent water leakage from the interface between the conﬁning plug and host-rock.The clay seal in test PT-N1is made up of8monolithic pre-compacted disks(0.555m in diameter and0.15m thick)of MX80/ sand mixture with an initial dry density of1.97Mg/m3(Figure2). The disks were arranged in vertical slices giving rise to the geometry of seal as shown in Fig.2.The bricks were obtained through uniaxial compaction of the mixture at its initial water content of11%.The ini-tial dry density(1.97Mg/m3)of the bricks was selected based on the consideration of the14.33%technological void and the need to have a ﬁnal dry density of1.67Mg/m3after saturation of the plug andﬁlling of the initial technological voids.Three types of sensors were installed within the compacted blocks to monitor the swelling pressure,pore pressure and relative humidity.For clarity,only the distribution of sensors for swelling pressure measurement is shown in this paper(Figure3a).Three total pressure sensors were installed on the surface of the column at section0.60m(from the downstream saturation system,L-01,L-02, L-03)to measure the radial swelling pressure;two total pressure sensors were installed at section0and1.20m to measure the axial swelling pressure(A-01,A-02).For each sensor,a hole as shown in Fig.3b was prepared at their pre-assigned positions before the assem-blage of blocks,keeping the hole to a minimum size.Wireless sensors (d=32mm)were used to limit preferentialﬂow along cables and a wireless transmitter was installed at each measurement section.Data were recorded automatically by a data acquisition system.Regarding the test operational phases,a volume of water of49l wasﬁrst injected,which corresponded to the volume of the techno-logical void adopted.This process ended in one hour.Afterwards, the water supply was stopped because the side packer was not prop-erly inﬂated;it restarted after20days under a water pressure of 0.1MPa.During the saturation process,the swelling pressure,pore pressure,water content or water saturation within the plug were monitored.The injected water volumes at both upstream and down-stream chambers were also measured.When the saturation process is completed,hydraulic tests will be performed to determine the overall hydraulic properties(permeability,occurrence of leakage)of the corresponding sealing systems.boratory small-scale testThe experimental devices used for the laboratory small-scale test (1/10)are shown in Fig.4.A stainless steel cell of60mm in inner diameter and200mm long was used.As in the in situ test,an annular technological void was deﬁned by adopting a smaller initial diameter (55.5mm)for the pre-compacted sample as compared to the diame-ter of the hydration cell(60mm).Note however that the hydration cell was placed in the vertical direction(see Figure4)and it was then different from the in situ test which is performed in a horizontal borehole(see Figures1and2).Water supply was conducted through the water inlets in the bottom base which was connected to burettes. This allowed measurement of the total amount of water taken up by the sample.A piston of60mm diameter was used to simulate the conﬁning structure.On the bottom of the piston,there was drainage with two inlets(upside inlet in Figure4)and a porous stone of 50mm diameter,allowing water/airﬂow.A mechanical press was used to restrain the axial deformation and a force transducer was used to monitor the axial swelling pressure.A displacement transducer ﬁxed on the piston allowed monitoring of the axial displacement to an accuracy of1μm.The axial pressure and axial displacement were recorded automatically to a data logger,while the inlet water volume was measured manually by determining the water level in the burettes.Table1Chemical composition of the synthetic water.Compound NaHCO3Na2SO4NaCl KCl CaCl2.2H2O MgCl2.6H2O SrCl2.6H2O Mass(g)per liter of solution0.28 2.2160.6150.075 1.082 1.3560.05380Q.Wang et al./Engineering Geology162(2013)79–87Note that in this small-scale test,the radial swelling pressure was not measured.A monolithic cylindrical sample(55.5mm in diameter,120mm high)was used in the test.It was statically compacted in a mold to the same dry density as in the in situ test(1.97Mg/m3).In order to ensure the homogeneity of the specimen,the compaction was carried out in two layers.The surface of theﬁrst compacted layer was care-fully scariﬁed before the second layer was added to ensure a good junction between them.Fig.5a shows the pre-compacted specimen with the hydration cell.After compaction,the specimen(55.5mm in diameter)was placed at the center of the cell(60mm in inner diameter),leaving an annular void(2.25mm)between the specimen and cell wall(Figure5b).An initial axial stress of0.1MPa was applied on the specimen before hydration in order to ensure good contacts between the load cell and the piston,between the piston and the sample,between the sample and the cell bottom,as well as satisfac-tory load measurement.Then,the upside inlets(see Figure4)were sealed and vacuum was applied to evacuate all air in the voids(tech-nological void mainly).The synthetic water wasﬁnally injected from the bottom.As described in Fig.6,hydration was carried out in three stages. First,the axial deformation was restrained and water was injected to the sample;during this stage(Stage1.initial saturation phase), the evolution of the vertical swelling pressure was monitored.Once the hydration ended,the conﬁning pressure in the axial direction was removed by unloading,allowing a free swell of20%(Stage2. recovery of the void phase).To reduce the test duration in this stage,two-side inﬁltration was applied by injecting water from both the bottom and the top,while recording changes in axial swelling strain over time.This stage aimed at simulating the case of a satura-tion defect or a failure of conﬁning structure that may occur during the long-term lifespan of the disposal system.The free swell of20% represents the sealing capacity required afterﬁlling the technological void.When the axial swelling strain reached the desired value of20%, the piston was automatically blocked thanks to a reserved distanceof Fig.2.Geometry of the clay plug and the pre-compacted blocks.(a)Distribution of the total pressure sensorsFor total pressure sensorA-01 (d = 32 mm)0.555 m(b) Hole machined for installation of wireless sensorFig.3.Distribution and installation of the total pressuresensors.yout of the SEALEX in situ experiment(after Barnichon and Deleruyelle,2009).81Q.Wang et al./Engineering Geology162(2013)79–8724mm (corresponding to 20%swelling strain)between the piston and the load cell (Figure 7);the evolution of swelling pressure was monitored again (Stage 3.con ﬁnement phase).3.Experimental results 3.1.In situ test (PT-N1)Fig.8shows the evolution of injected water volume over time.As mentioned above,a volume of 49l was ﬁrst injected to ﬁll the tech-nological void and the injection was stopped for 20days due to a technical problem related to the packer.After resuming the injection,it was observed that the increase rate of water volume was followed by an asymptotic curve with a decreasing rate.After 367days,the total injected water volume was 71.39l (Figure 8).Examination of the curve shows that the shape of water volume versus time (after rejection)can be described by a hyperbolic function.Fig.9presents the time/water volume (day/l)versus time.A good linear relationship is obtained,con ﬁrming that the water volume –time curve is of a hyperbolic shape.Thereby,the following equation can be adopted for this relationship:t¼a þbt 1where t is time,V is injected water volume,a and b are the intercept and the slope of the straight line,respectively (Figure 9).According to this hyperbolic relationship,the maximum water volume corresponds to 1/b (Eq.(2)),equal to 72.46l.This is to be compared with the total volume of voids including the technological void and the soil porosity:69.1l.V max¼lim t →∞V t ðÞ¼limt →∞1¼12During hydration,both the axial and radial swelling pressureswere recorded by the total pressure sensors (see Figure 3)and the results are shown in Fig.10.The data by the sensor located at 1.20m section for the axial swelling pressure measurement were unfortunately not available;only the axial swelling pressure values at 0m section are presented.This pressure increased at an almost constant rate and reached 1.63MPa after 367days.For the radial swelling pressure,the evolution rates were very different for the three sensors (see Figure 3);the pressure values reached were 1.78MPa,0.56MPa and 1.05MPa for sensors L-01,L-02and L-03,respectively.This indicates the heterogeneous radial swelling under the in situ conditions.3.2.Small-scale testFig.11shows the measured water in ﬂow over time.Once the water supply was connected to the bottom inlet,water volume increased rapidly and reached 49ml in a few minutes.This value corresponded exactly to the volume of technological void (49ml).Fig.4.Experimentaldevices.Fig.5.Sample preparation.82Q.Wang et al./Engineering Geology 162(2013)79–87Afterwards,water volume increased gradually to reach a maximum value of 70.6ml.No more water could in ﬁltrate after about 200days.The total volume of void (including the technological void V tech and the void inside the soil V v −s )that could be ﬁlled with water was esti-mated at 69.1ml.The result shows that a little more water was injected with respect to the estimated one (70.6ml against 69.1ml),but the dif-ference is quite small.For further analyzing the evolution of water volume,the time/water volume (day/ml)is plotted versus time in Fig.12.As in the case of in situ test,a straight line is obtained justifying a hyperbolic relationship between the water volume and the elapsed time (Eq.(1)).The value of 1/b corresponds to the maximum volume of water:1/b =71.43ml,which is very close to the measured water volume (70.6ml).Figs.13and 14depict the evolution of swelling pressure in the ﬁrst stage (i.e.initial saturation phase).Once water was injected into the specimen,the axial swelling pressure increased very quickly (Figure 14).After about 2days,the swelling pressure reached a ﬁrst stability stage (1.30MPa)and it restarted to increase on the 4th day.When the swelling pressure reached 1.45MPa after about 12days,a signi ﬁcant decrease of swelling pressure occurred and a minimum value of 0.70MPa was reached.Afterwards,the swelling pressure increased again after about 33days (Figure 13),but at a slower rate.In addition,the evolution curve shows ﬂuctuating pattern.The swelling pressure reached a mean value of 1.80MPa after 300days and then ﬂuctuated in the range of 1.75–1.95MPa.The axial deformation during the swelling pressure development was also recorded,and shown in Fig.13.It followed the same trend as the swelling pressure.Note however that the variation of displace-ment was smaller than 0.2mm.It represents 0.16%of the specimen height (120mm),suggesting a satisfactory control of axial displace-ment in this stage.According to the data obtained in the ﬁrst stage (Figure 13),no obvious swelling pressure increase occurred during a period of 50days from day 300to day 350.Thus,it was decided to start the sec-ond stage.For this purpose,the con ﬁning pressure was removed on day 350,allowing the free swell.Changes in axial swelling strain were recorded and presented in Fig.15.The uplifting of load cell led to an in-stantaneous rebound of 1.1%(1.4mm/120mm).Afterwards,the axial swelling strain increased almost linearly at a rate of 0.145mm/day.Following this rate,20%of swelling strain was expected to be reached after 157days.In order to reduce the test duration,two-side in ﬁltration was applied on day 364.This resulted in an increase of the swelling strain rate to 0.588mm/day,which is four times faster than that with one-side in ﬁltration.The expected value of 20%(24mm)was reached on day 400.The piston was then re-blocked automatically to start Stage 3.Note that the measured axial swell was 24.4mm.The evolution of swelling pressure was then measured again and the results are presented in Fig.16.Small ﬂuctuation was observed and this ﬂuctuation can be attributed to the daily temperature varia-tions.As expected,the evolution curve follows a hyperboliccurveFig.6.A schematic description of the three stages of the small-scale test.LVDTFig.7.Lifting of load cell for free swell.83Q.Wang et al./Engineering Geology 162(2013)79–87with a decreasing rate over time.It reached stabilization on day 520with a ﬁnal swelling pressure of 0.18MPa.parison and discussionIt was observed that more water in ﬁltrated into the soil than that calculated by considering the technological void and the soil porosity in both the in situ test (71.39l)and laboratory small-scale test (70.60ml).Even though the water volume has not yet reached stabi-lization in the in situ conditions,the discrepancy is found to be larger than in the small-scale test.This can be related to the natural condi-tions of the in situ test,where some water intake by the host-rock did occur.With a well-controlled condition in the small-scale test,the larger in ﬁltrated water obtained may be related to the low water density (1.00Mg/m 3)considered in the determination of soil void ratio.Indeed,for high plasticity materials as the MX80bentonite,the water density can be much higher than 1.00Mg/m 3(Marcial,2003;Villar and Lloret,2004;Lloret and Villar,2007;Jacinto et al.,2012).This is in agreement with the observation from the KBS-3H mock-up test (Börgesson et al.,2005).Regarding the evolution of water volume,a hyperbolic relation-ship between the injected water volume and elapsed time was obtained in both tests.Accordingly,the maximum water volume was estimated at 72.46l and 71.43ml for the in situ and small-scale tests,respectively.To compare the evolution curve at different scales,the water volume was normalized by using these two values.The nor-malized water volume is equal to the ratio of water volume at time t (V t )to the maximum water volume that can be injected (72.46l and 71.43ml for the in situ and small-scale test,respectively).In terms of time scale,an upscaling ratio of 2.5(in situ test/small-scale test)was found from the normalized water volume shown in Fig.17,where very similar evolution curves (normalized water volume versus normalized time)were obtained for the two tests (in situ and small-scale tests).This upscaling ratio is much smaller than that estimated based on the consolidation theory by considering the experiment scale and hydration conditions:according to the in ﬁltration length,the hydration rate of the in situ test should be 100times lower than in the small-scale test (1/10).As the two-side in ﬁltration applied in the in situ test increased the hydration rate by 4times,the upscaling ratio should be equal to 25(in situ test/small-scale test),still tenElapsed time (day)I n j e c t e d w a t e r v o l u m e (L )Fig.8.Injected water volume versus time.Elapsed time (day)T i m e /w a t e r v o lu m e (d a y /L )Fig.9.Time/water volume versus elapsed time after water rejection.Elapsed time (day)S w e l l i n g p r e s s u r e (M P a )Fig.10.Evolution of swelling pressure.102030405060708004080120160200Elapsed time (day)I n j e c t e d w a t e r v o l u m e (m L )V tech = 49.0 mLTotal volume of voidFig.11.Water volume injected into the specimen.84Q.Wang et al./Engineering Geology 162(2013)79–87times larger than the rate identi ﬁed from the measurements.In fact,under the ﬁeld conditions,water may ﬁll some voids between the pre-compacted disks during the ﬁrst minutes (0.15m thick,see Figure 2).This in ﬁltration length of 0.15m leads to an upscaling ratio to 0.56.The upscaling ratio of 2.5observed is possibly related to the combined effect of these two phenomena.Using this upscaling ratio,the axial swelling pressure evolution curve obtained from the in situ test (Figure 10)was normalized and presented in Fig.18,together with the axial swelling pressure mea-sured in the ﬁrst stage of the small-scale test.Except for the ﬁrst 33days (see Figure 13)where signi ﬁcant decrease of swelling pres-sure occurred in the small-scale test,the normalized curve of swelling pressure for the in situ test joins the curve of the small-scale test,con-ﬁrming the upscaling ratio of 2.5.Based on the results of small-scale test,this ratio allows the time needed to reach the stabilization of swelling pressure in the in situ test to be estimated.It can be observed in the small-scale test that the swelling pressure reached the stability after about 300days.Thus,155days more is needed to reach the maximum swelling pressure at the normalized time scale for the in situ test.Accordingly,it can be estimated that the maximum swellingy = 0.0140 x + 0.0524R 2= 0.99870.00.51.01.52.02.53.004080120160200Elapsed time (day)T i m e /w a t e r v o l u m e (d a y /m L )Fig.12.Time/water volume versus elapsed time.050100150200250300350400Elapsed time (day)S w e l l i n g p r e s s u r e (M P a )-0.100.10.20.30.40.50.6D i s p l a c e m e n t (m m )Fig.13.Evolution of axial swelling pressure and displacement in the ﬁrststage.0.00.40.81.21.605101520253035Elapsed time (day)S w e l l i n g p r e s s u r e (M P a )Fig.14.Evolution of swelling pressure during the ﬁrst 33days.0.00.51.01.52.02.53.03.54.0350355360365Elapsed time (day)S w e l l i n g s t r a i n (m m )(a) Evolution of axial swelling strain during the first051015202530350360370380390400410S w e l l i n g s t a i n (m m )Elapsed time (day)One-side infiltrationTwo-side infiltrationε= 20 %(b) Evolution of axial swelling strainFig.15.Evolution of axial swelling strain during Stage 2.85Q.Wang et al./Engineering Geology 162(2013)79–87pressure in the in situ test should be reached after 388days,corre-sponding to 754days starting from the time of water injection.As regards the kinetics of the axial swelling pressure in the ﬁrst 33days of small-scale test,stabilization was attained after about 2days at 1.30MPa and restarted to increase from day 4(Figure 14).Wang et al.(2013)observed similar phenomenon in swelling pres-sure tests on smaller samples (35mm in diameter,10mm in height)with the same percentage of technological void.This is related to changes in microstructure of soil.With the progress of hydration,the ef-fect of microstructure changes is reduced,resulting in the re-increase in swelling pressure (Cho et al.,2000;Baille et al.,2010).When the swell-ing pressure reached 1.45MPa on day 12,a signi ﬁcant decrease of swelling pressure occurred,reaching a minimum value of 0.70MPa.This decrease can be attributed to the ﬁlling of the technological void.Afterwards,the swelling pressure increased again from day 33.How-ever,the evolution curve showed ﬂuctuation due to the reorganization of soil microstructure under the effect of technological void.On the contrary,the axial swelling pressure measured in the in situ test increased constantly without any ﬂuctuation.This can be re-lated to a coupled effect of large-scale and pressure sensor location.Indeed,in the small-scale test,the axial swelling pressure was mea-sured on the whole cross section and any changes in axial pressure could be monitored.However,in the in situ test,the total pressure sensor was installed in the center of the cross section (Figure 3)and the axial swelling pressure herein corresponded to the local one.Therefore,the axial swelling pressure changes that occurred in the zone of technological void could not be detected by this sensor.After the axial swelling pressure of small-scale test reached stabi-lization,removing the axial con ﬁning restriction led to a very small rebound of 1.1%(1.4mm/120mm).This observation provides valu-able information for the con ﬁnement removal phase of the in situ test.During the free swelling process (Stage 2),a swelling strain evo-lution rate (swelling strain/time)of 0.588mm/day was observed under two-side in ﬁltration bined with the upscaling ratio,this result (0.588mm/day)allows prediction of the swelling strain evolution in the in situ test when simulating an incidental decrease of the swelling pressure caused by a failure of the concrete con ﬁning structure.As the piston was re-blocked automatically in the small-scale test (Stage 3),swelling pressure developed again.This indicates the favor-able sealing capacity after ﬁlling of the technological void.If a saturation defect or a con ﬁning structure failure occurs in the ﬁeld,a 20%addi-tional void could be sealed.A ﬁnal swelling pressure of 0.18MPa was attained,which is in accordance with the swelling pressures measured in the laboratory on smaller samples (Wang et al.,2013):after the 20%free swell (24.5mm),the dry density decreased to a ﬁnal value of 1.39Mg/m 3;this corresponds to a swelling pressure of 0.23MPa.5.ConclusionIn the context of SEALEX project,a laboratory small-scale test (1/10)was carried out to investigate the recovery capacity of bentonite-based plug with technological void.By comparison with the ﬁrst results from the in situ test PT-N1,the phenomena identi ﬁed in the laboratory were used for interpreting and estimating the results from the in situ test.During the saturation process,a hyperbolic relationship between the injected water volume and elapsed time was obtained in both laboratory and ﬁeld tests.However,a little more water was injected as compared to the water volume estimated by considering the total rger discrepancy was found for the in situ test due to the effect of natural conditions.Elapsed time (day)S w e l l i n g p r e s s u r e (M P a )23242526D i s p l a c e m e n t (m m )Fig.16.Evolution of axial swelling pressure during Stage 3.0.70.80.91.01.1050100150200N o r m a l i z e d v o l u m eNormalized time (day)In-situ test PT-N1Small-scale test (1/10)Fig.17.Normalized water volume versus normalized time.050100150200250300350400S w e l l i n g p r e s s u r e (M P a )Elapsed time (day)Fig.18.Swelling pressure versus normalized time.86Q.Wang et al./Engineering Geology 162(2013)79–87。

全国卷2025届高考英语2月高分模拟卷卷7含解析

（全国卷）2025届高考英语2月高分模拟卷（卷7）（含解析）(时间：120分钟满分：120分)选择题部分第一部分阅读理解(共两节，满分50分)第一节(共15小题；每小题2.5分，满分37.5分)阅读下列短文，从每题所给的四个选项A、B、C和D中，选出最佳选项。

A（2024·河北衡水市·衡水中学高三月考）The Apollo Missions“That's one small step for a man. One giant leap for mankind.”—Neil Armstrong Apollo’s GoalsThe national effort that enabled Astronaut Neil Armstrong to speak those words as he stepped onto the lunar surface fulfilled a dream as old as humanity. Project Apollo’s goals went beyond landing Americans on the moon and returning them safely to Earth.Apollo 13Apollo 13 has been called a “successful failure,” because the crew never landed on the Moon, but they made it home safely after an explosion crippled their ship. When the associated heater was turned on during flight, the tankexploded depleting almost all of the power from the command module and forcing the crew to use the lunar module as a lifeboat. Jim Lovell, Fred Haise and Jack Swigert came home safely thanks to the mission control team’s improvised procedures and their own ability to implement them.(Launch: April 11, 1970; splashdown: April 17)Apollo 14Notable for the return of America’s first astronaut, Alan Shepard, to space, Apollo 14 also was probably the smoothest lunar landing to that point. The crew spent more than nine hours outside the lunar module and set up a number of experiments. Shepard set a new distance record by walking more than 9,000 feet on the lunar surface, pulling a hand cart to carry their tools and samples.(Launch: Jan. 31, 1971: lunar landing: Feb. 5: splashdown, Feb. 9) Apollo 15For the first time, humans drove a car on the Moon. The first of the Apollo “J” Missions-designed for longer stays on the Moon - the mission carried a lunar rover, which Commander David Scott and Lunar Module Pilot James Irwin used while they were on the surface for more than I8 hours. They traveled more than 17 miles in the rover, setting up experiments and collecting 170 pounds of samples. Before leaving the lunar surface, Scott conducted an experiment to test Galileo’s theory that objects in vacuum, without air resistance, would fall at the same rate. He dropped a geological hammer and a feather, which hit the ground at the same time, proving Galileo right.(Launch: July 26, 1971, lunar landing: July 30: splashdown: Aug. 7)1．Why has Apollo 13 been called a “successful failure”?A．Apollo 13 finally exploded as planned in space.B．All the crew succeeded in landing on the Moon.C．The crew managed to escape from a severe accident and returned to Earth. D．The crew finished the experiment although they failed to land on the Moon. 2．Which of the following is True according to the passage?A．It took five days for Apollo 14 to reach the Moon.B．The lunar rover was used as a lifeboat for space travel.C．Shepard tested Gali leo’s theory successfully on the Moon.D．Apollo 15 remained in space for the shortest period of time.3．Which of the following column is this article most likely to be found? A．Booming Science B．Exploring the Unknown C．Mechanical World D．Transforming MoonB（2024·黑龙江哈尔滨市第六中学校高三期末）Staying connectedWhen Central Bucks South became one of the first Philadelphia-area high schools to close because of the fear of novel coronavirus exposure in early March, 16-year-old sophomore Andrew Chen knew that things were not going to return to normal as quickly as some of his peers hoped.But still, the change from seeing his friends on the swim team during daily practices to learning alone at home was jarring.“I only have three years her e at South, and it pains me to see one of them being wasted,” Chen said.The coronavirus has changed everyone’s lives, but for students, the disruption feels particularly serious. Schools closed and graduation ceremonies were put off. Summer plans, such as camps, are up in the air.But right now, many students are trying to stay connected, struggling with false information, and finding out the best ways they can help –through online method.For Josh Harycki, 17, a senior student at the Shipley School in Philadelphia, the best way to help was to create a “social distancing promise” for young people.“I saw a lot of young people not paying attention,” he said. “They were … still going out, hanging out with others. I thought that there had to be a way to reach younger people, who were possibly not watching the news.”Harycki started a call to action on social media and then built a website with a map that followed and kept the locations of people who’d signed the promise. The site also shares links to accurate sources of information like the US Centers for Disease Control and Prevention.Harycki knows that his peers are worried they can’t connected with their friends in the same way, so he created the social distancing promise to strengthen that although everyon e might be physically distant, they’re still connected.“Part of what we’re showing is that you might feel like you’re the only one taking this seriously, but our map shows that you’re not alone,” he said. 4．What does the underlined word “jarring” in Parag raph 2 probably mean? A．naturalB．necessaryC．worryingD．reasonable5．Who does Harycki mainly want to reach?A．Friends who are worried and bored.B．Young people not aware of the situation.C．Younger students trying to help.D．People taking the coronavirus seriously.6．What’s Harycki’s purpose in creating the “social distancing promise”? A．To order young people to stay at home.B．To follow those infected with the coronavirus.C．To tell young folks of latest news about the coronavirus.D．To show young people that they are still connected.7．Why does the author describe Andrew Chen’s experience in the text?A．To explain what worried students most when schools closed.B．To show the different views of students toward the coronavirus.C．To show how the coronavirus affected students’ lives.D．To explain the proper reaction to the close of school.C（2024·全国高三专题练习） One night in 1966, Michael Chapman rushed into a folk-music club in Cornwall, England to get out of the rain, and soon found himself onstage playing the guitar.“They offered me a job to play for the rest of the summer. And I’ve been playing ever since,” Chapman says. “I’ve told that story so many times, but it’s absolutely true. If it hadn’t been raining that night, I wouldn’t be talking to you.”The British guitar player has spent the 50 years since then on the road. He released some praised albums in the 1970s, but his health went downhill in the 80s and 90s. Like a lot of British artists in the 1960s, Chapman taught himself to play the guitar by listening to American jazz and blues records.Chapman actually taught photography, but quit when he was 26 to play music full time. When he was starting out, he was often compared to other British acoustic guitar heroes of the time, like John Martyn and Bert Jansch.“The fascinating thing about Michael Chapman is that he doesn’t fit in with those guys of his generation,” says Andrew Male, a music journalist. “He’s always been an outsider. He never moved to London. ”And while he never became part of the London music scene, Chapman was noticed by those musicians. “The 70s caught up with him in the 80s,” Male says. “He had a huge heart attack at the end of the 80s that nearly finished him off. When he made his way back into the world in the early 90s, people had forgotten about him.” But not everyone. A younger generation of musicians in America, including Thurston Moore of Sonic Youth and a younger singer and guitarist named Steve Gunn, recently rediscovered Chapman.“We wanted to capture Michael’s voice and character where he is now. You know, it’s a little road-weary, but he still has it,” Gunn says. “For me, it was really important to get that right.” “He’s the right old musician for present times,” Male says. “I think the music he makes seems quite in tune with where we’re at.”8．Which can best describe Michael Chapman’s first involvement in music? A．Untrue. B．Accidental. C．Unfortunate. D．Reasonable. 9．What can we learn about Michael Chapman from the text?A．He has taught photography for 26 years.B．He taught himself to play the guitar and did far better than John Martyn. C．To some degree, he is not accepted by other people of his generation. D．He is one of the best guitar players in the early 90s.10．Why did Michael Chapman quit his music career once?A．He lost his special voice. B．He suffered from a severe heart attack.C．He got tired of competing with others. D．He was almost forgotten by everyone.11．Which of the following can be the best title for the text?A．The Rise and Fall of Guitar Music B．The Sad Story of a Guitar Musician C．A New Generation Helps an Old Guitar Musician D．A Brief Introduction to a Guitar MusicianD（2024·天水市第一中学高三月考） How many times a day do you check your email? When you wake up? Before bed? A dozen limes in between? The technology that was supposed to make our lives simple has taken up too much time. The average teen spends more than seven hours a day using technological devices, with an additional hour just text-messaging friends.The advantage of technological devices is connectedness. Email lets us respond on the go, and we are in touch with more people during more hours of the day than at any other time in history. But is it possible that we’re lonelier than ever, too? That’s what MIT professor Sherry Turkle observes in her new book, Alone Together, which clearly describes our changing relationship with technology.For Turkic, the biggest worry is the effect the weak connections have on our development. T echnology isn’t offering us the lives we want to live. “We’re texting people at a distance” says Turkic. “We’re using lifelessobjects to convince ourselves that even when we’re alone, we feel together. And then when we’re with each other, we put ourselves in situations where we are alone—always on our mobile devices. It’s what I call a perfect storm of confusion about what’s important in our human connections.”Moreover, communicating online is not equal to face-to-face communication. Online, you can ignor e others’ feelings. In a text message, you can avoid eye contact A number of studies have found that this generation of young people is sympathetic (有怜悯心的) than ever. “That doesn’t lead to disaster,” says Turkle, “but the disadvantages still cannot be ignored.”12．From the first paragraph we can learn that .A．Email checking helps people wake up earlyB．People communicate mainly by text-messaging nowC．Technological device production has been simplifiedD．Using technological devices costs young men much time13．What is Sherry Turkic’s biggest worry?A．Technology may make human connections confusing.B．Technology can’t help people remove loneliness.C．Technology may make people’s lives hard.D．Technology keeps people together.14．What is the author’s at titude towards the influence of technology on people’s life?A．Positive B．NegativeC．Hopeless D．Uncertain15．What is the passage mainly about?A．Technology brings many conveniences to people’s lives.B．Young men spend too much time on technological devices.C．Technology also brings people some disadvantages.D．Sherry Turkle observes people’s changing relationship with Technology.其次节(共5小题；每小题2.5分，满分12.5分)依据短文内容，从短文后的选项中选出能填入空白处的最佳选项。

九年级英语科技单选题50题

九年级英语科技单选题50题1. The new smart phone has a ______ camera that can take amazing photos.A. high-resolutionB. low-resolutionC. medium-resolutionD. no-resolution答案：A。

“high-resolution”表示高分辨率，新智能手机通常会有高分辨率的相机才能拍出很棒的照片。

“low-resolution”是低分辨率，“medium-resolution”是中分辨率，不符合新智能手机的特点。

“no-resolution”这种表述不正确。

2. This invention can ______ energy from the sun and turn it into electricity.A. collectB. wasteC. destroyD. lose答案：A。

“collect”有收集的意思，这项发明能收集太阳能并转化为电能。

“waste”是浪费，“destroy”是破坏，“lose”是丢失，都不符合发明利用太阳能的意思。

3. The latest technology allows us to ______ information very quickly.A. sendB. receiveC. storeD. process答案：D。

“process”有处理、加工的意思，最新的技术能让我们很快处理信息。

“send”是发送，“receive”是接收，“store”是存储，都没有强调对信息的快速处理。

4. The scientist is working on a ______ that could change the world.A. projectB. problemC. questionD. answer答案：A。

“project”指项目、工程，科学家正在研究能改变世界的项目。

高中英语科技类单选题30题

高中英语科技类单选题30题1. The development of new technology has made our lives more ______.A. convenientB. difficultC. boringD. simple答案：A。

本题考查形容词的词义辨析。

“convenient”意为“方便的”；“difficult”意为“困难的”；“boring”意为“无聊的”；“simple”意为“简单的”。

新技术的发展通常会让我们的生活更方便，所以选A。

2. With the help of modern science and ______, many diseases can be cured.A. technologyB. informationC. knowledgeD. culture答案：A。

“technology”指“技术”；“information”指“信息”；“knowledge”指“知识”；“culture”指“文化”。

现代科学和技术能帮助治愈很多疾病，故选A。

3. The latest ______ in communication has changed the way we interact with each other.A. achievementB. inventionC. progressD. discovery答案：C。

“achievement”意为“成就”；“invention”意为“发明”；“progress”意为“进步”；“discovery”意为“发现”。

最新的通讯方面的进步改变了我们相互交流的方式，C 选项更符合语境。

4. Scientists are working hard to find ______ solutions to environmental problems.A. effectiveB. expensiveC. beautifulD. traditional答案：A。

关于做一道菜的新闻报道英文英语作文

全文分为作者个人简介和正文两个部分：作者个人简介：Hello everyone, I am an author dedicated to creating and sharing high-quality document templates. In this era of information overload, accurate and efficient communication has become especially important. I firmly believe that good communication can build bridges between people, playing an indispensable role in academia, career, and daily life. Therefore, I decided to invest my knowledge and skills into creating valuable documents to help people find inspiration and direction when needed.正文：关于做一道菜的新闻报道英文英语作文全文共3篇示例，供读者参考篇1Culinary Conquests: A Student's Journey into the KitchenBy Claude Wilkins, Sophomore, Greendale HighIt was just another typical Friday night. My friends and I had plans to watch a movie marathon, binging on snacks andreveling in our weekend freedom. However, this particular evening took an unexpected turn that would forever change my relationship with the culinary arts.As I rummaged through the kitchen pantry, a forgotten jar of roasted red peppers caught my eye. It had been sitting there, neglected, for who knows how long. In that moment, a spark of inspiration ignited within me. "Why not try making something with these?" I thought to myself.Little did I know, this spontaneous decision would lead me down a rabbit hole of gastronomic discoveries and newfound appreciation for the art of cooking.The Initial Attempt: A Humbling ExperienceFeeling ambitious, I decided to attempt a roasted red pepper pasta dish. How hard could it be? Armed with a recipe I found online and a misplaced sense of confidence, I dove headfirst into the culinary arena.Let's just say the first attempt was... less than stellar. The pasta was overcooked, the sauce was a watery mess, and the flavors were lackluster at best. But instead of being deterred, I was intrigued. There had to be a way to elevate this dish, to unlock its true potential.The Pursuit of PerfectionFrom that point on, I became obsessed with mastering the roasted red pepper pasta. Every weekend, I would experiment with different techniques, adjustments, and ingredient combinations. I scoured cookbooks, watched countless cooking shows, and even pestered the family chef for tips.Slowly but surely, my skills began to improve. I learned the importance of timing, the art of balancing flavors, and the subtle nuances that separate a good dish from a great one.The Turning Point: A Culinary EpiphanyIt was during one particularly frustrating attempt that I experienced a culinary epiphany. As I stood over the stove, stirring the sauce, I realized that cooking was more than just following a recipe; it was a delicate dance between ingredients, techniques, and personal flair.From that moment on, I stopped blindly adhering to recipes and started trusting my instincts. I experimented with different spice combinations, tried new cooking methods, and even incorporated unexpected ingredients like smoked paprika and sun-dried tomatoes.The results were nothing short of extraordinary. Suddenly, the dish I had once struggled with became a masterpiece – a harmonious blend of flavors that danced across the palate, leaving a lasting impression.Sharing the JoyAs my culinary prowess grew, so did my desire to share my newfound passion with others. I started hosting dinner parties for friends and family, meticulously planning menus and showcasing my latest creations.The look of pure delight on their faces as they savored each bite was a reward like no other. It was in those moments that I truly understood the power of food – its ability to bring people together, to create memories, and to celebrate life's simple pleasures.Beyond the Roasted Red Pepper PastaMy culinary journey didn't stop at the roasted red pepper pasta. Emboldened by my success, I began exploring a wide range of cuisines and techniques. From the intricate art of sushi rolling to the hearty comfort of slow-cooked barbecue, no cuisine was off-limits.Each new dish presented its own set of challenges and lessons, further honing my skills and expanding my culinary horizons. I learned the importance of patience, attention to detail, and the willingness to learn from mistakes.The Future Looks DeliciousAs I reflect on my culinary escapades, I can't help but feel a sense of pride and gratitude. What started as a simple attempt to use up a forgotten jar of roasted red peppers has blossomed into a lifelong passion.Looking ahead, my dreams are filled with visions of culinary adventures. Perhaps I'll attend a prestigious culinary school or open my own restaurant someday. Maybe I'll travel the world, immersing myself in the diverse flavors and techniques of different cultures.One thing is certain: the kitchen has become my sanctuary, a place where I can unleash my creativity, indulge my senses, and share the joy of good food with those around me.So, the next time you find yourself staring at a seemingly ordinary ingredient, remember my story. Embrace the opportunity to explore, experiment, and let your culinary curiosity run wild. Who knows? It might just be the start of anincredible journey, one that leads you to discover your true passion and unlock a world of flavors you never knew existed.篇2A Delicious Disaster in the Making: A Student's Journey to Culinary CatastropheIntro:It was just another typical Thursday night. I had just gotten back from my last class of the day, my backpack weighing heavily on my shoulders with textbooks and notes. Like many college students, I was tired, hungry, and lacking any culinary ambition beyond microwaving a frozen meal. However, little did I know that my simple desire for sustenance would quickly devolve into a comedy of errors deserving of its own sitcom episode. This is the story of how I attempted to make a humble plate of spaghetti bolognese and nearly burned my apartment complex to the ground in the process.The Setup:After dropping my bag and kicking off my shoes, I headed to the kitchen to survey my supplies. A box of spaghetti noodles? Check. A can of store-brand tomato sauce? You bet. A pound of ground beef that was maybe a day or two past its expiration date?Hey, no food goes to waste on a student's budget. I cracked my knuckles, feeling confident that this most basic of meals would be a culinary cakewalk.The First Mistake:As I waited for a pot of water to boil, I absent-mindedly pulled out my phone to scroll through social media, already imagining the satisfied feeling of a full belly. Needless to say, I became so engrossed in the endless pit of online content that I completely forgot about the water on the stove. It wasn't until the harsh beeping of the smoke alarm jolted me back to reality that I realized my terrible mistake. Acrid plumes of steam were billowing out of the pot as the water had entirely evaporated away, leaving only a blackened container and the charred remains of what used to be a nice kitchen towel.Not to be deterred, I simply grabbed a new pot, filled it with fresh water, and set it back on the burner with the heat dialed down low. Crisis averted...or so I thought.The Second Mistake:With the noodles finally cooking away, I turned my attention to browning the ground beef. I tossed it into a hot skillet, confident that I at least knew how to properly cook meat. Onceagain, I made the fateful error of becoming distracted, this time by a chorus of notifications from my group project teammates frantically messaging about an upcoming deadline.By the time I looked back at the beef, it had transformed into an unappetizing, solid mass of gray, likely inedible material that a competitive eater would struggle to consume. Determined to press on, I simply scooped out the hockey-puck-esque disc of overcooked protein and continued with the sauce.The Third Mistake:You would think that by the third step in this relatively straightforward process, I would have learned my lesson about paying attention. And yet, when it came time to warm up the canned tomato sauce, you can likely guess what happened. That's right, I got sucked down yet another social media rabbit hole, leaving the sauce to simmer away untended.Except, this time, my neglect had graver consequences than a ruined meal component. By the time I realized something was amiss, thick clouds of smoke were pouring out of the pan and curling up towards the ceiling. I had somehow managed to scorch the sauce to such an extreme degree that it transmogrified into a burnt, crusty substance more akin to asphalt sealant than a savory pasta accompaniment.The Grand Finale:At this point, any sane person would have thrown in the towel and ordered a pizza. But I, blinded by a toxic concoction of stubbornness and hunger, refused to accept defeat. With smoke detectors blaring, I doused the sauce pan with water to extinguish the mini-inferno I had created. The air now thick with the foul stench of charred tomatoes, I scooped the spaghetti noodles out of their pot and slapped everything together on a plate: the overcooked beef disk, the plain, unseasoned noodles, and a few spoonfuls of unburnt sauce from the edges of the pan.As I sat down to choke down my culinary abomination, I couldn't help but laugh at the sheer series of disasters that had led to this moment. Was this the low point of my young adult life, or merely an amusing anecdote that would make a great dinner party story someday? Only time would tell.In the end, I learned a crucial lesson about the importance of focus, patience, and maybe investing in a few beginner's cooking classes. Because if this degree of destruction could result from something as simple as spaghetti bolognese, I shudder to think about the havoc I could wreak while attempting a more ambitious recipe. For now, I'd be sticking to frozen meals and takeout.篇3Disaster in the Kitchen! Student Attempts Viral Ramen RecipeBy Samantha Lewis, Freshman, Woodbury High SchoolApril 1st, 2024 - A culinary catastrophe occurred in the Lewis household kitchen late last night as I attempted to recreate the latest viral ramen recipe taking the internet by storm. What was supposed to be an impressive, delicious meal ended up arisky click-bait fail that nearly burned down my family's home.The recipe, dubbed "Ramen Sixfury" by its creator, appeared simple enough to follow at first glance. Boil water, cook instant ramen according to package directions, then add a menagerie of extra ingredients like sliced spam, shredded cheese, an egg, sriracha sauce, and crush up some potato chips to sprinkle over top. The final product looks mouth-wateringly good in the video.As a relatively inexperienced home cook whose kitchen skills are limited to microwaving frozen meals and assembling sandwiches, I felt confidently up for tackling this trendy recipe. How hard could it be to fancify some student-friendly instant ramen? Famous last words...My first mistake was misreading the quantity of water needed to cook the noodles properly. Instead of using just enough water to barely cover the noodle block, I filled my sauce pot nearly to the brim, as if I were cooking a full package of pasta. This resulted in a huge pile of soggy, overcooked ramen when I strained out the excess water.Undeterred, I pushed ahead by following the instructions to stir in the slice of spam, shredded cheddar cheese, an egg, and several dashes of sriracha. By this point, the whole concoction looked more like prison slop than the appetizing meal in the video. But I still had high hopes that actually tasted better than it looked.Where things really took a turn for the worse was when I moved on to the potato chip step. Perhaps I got a little too excited and heavy-handed when crushing up the chips over the ramen. One minute I was happily smashing the chips into pieces, the next minute a small grease fire had erupted in the pot!I froze in shock for a split second before frantically reaching for the fire extinguisher we keep under the sink. As clouds of smelly smoke filled the kitchen, I struggled to remember whether I was supposed to aim the nozzle at the base of the fire or not. Finally I just opted to douse the entire pot with the extinguisher'scontents, creating a huge mess all over the stove and surrounding area.My parents came rushing into the kitchen amid my panicked coughing and sputtering to discover the scene of chaos. The ramen was a charred, inedible lump at the bottom of the scorched pot. Ashes floated through the air, covering every surface in a fine film of soot. Smoke continued billowing out from the stove despite my futile attempts at extinguishing the flames."What in the world were you trying to make?" my dad asked in shock, surveying the damage as my mom opened all the windows."The ramen...recipe...video..." I gasped out between coughs. Both parents just shook their heads slowly, no doubt wondering where they went wrong in raising me.In the end, the kitchen sustained only minor damage thanks to my fast response in grabbing the extinguisher. But the entire house reeked of smoke for days. My olfactory receptors were assaulted by the harsh, acrid odor every time I entered a room. We ended up having to do a deep clean and repaint parts of the kitchen to get rid of the lingering burnt smell.As for me, I am now officially banned from all "viral" recipe attempts and ANY unsupervised kitchen activities for the foreseeable future. All things considered, I made it through the harrowing experience unscathed save for a temporary cough, some minor smoke inhalation, and a badly bruised ego. I think I'll just stick to microwaving Easy Mac from now on.While this may have been my first major culinary disaster, I have a feeling it won't be my last. At least I received a crucial life lesson without severely injuring myself or burning down the house entirely. Next time I'm struck by the urge to try a complicated recipe from an online video, I'll be sure to suit up in full firefighter gear first. Maybe I'll even keep the extinguisher aimed and ready right from the start just in case. When you're as culinarily challenged as I am, you can never be too careful!。

promisingly例句

promisingly例句1. The young artist displayed her work at the gallery, and the critics responded promisingly.这位年轻艺术家在画廊展示了她的作品，评论家们的反应非常积极。

2. The new technology is promisingly efficient, leading to hopes of reducing costs significantly.这项新技术的效率非常高，人们希望能显著降低成本。

3. After several months of training, the team performed promisingly in their first match of the season.经过几个月的训练，球队在赛季的首场比赛中表现得很不错。

4. The research findings are promisingly indicating a breakthrough in cancer treatment.研究结果很有希望地指向癌症治疗的突破。

5. His latest novel has been received promisingly by both readers and critics alike.他最新的小说受到了读者和评论家的积极评价。

6. The students’ test scores improved promisingly after the new teaching methods were implemented.新的教学方法实施后，学生们的考试成绩明显提高。

7. The startup company is growing promisingly, attracting investors from various sectors.这家初创公司正在蓬勃发展，吸引了各个领域的投资者。

小学下册P卷英语第6单元测验卷[有答案]

小学下册英语第6单元测验卷[有答案]考试时间：80分钟（总分:100）A卷考试人：_________题号一二三四五总分得分一、综合题(共计100题共100分)1. Mountains separate Europe from ________(乌拉尔山脉将欧洲与________分开). 填空题：The Viki2. 填空题：The _____ (蜜蜂) is essential for pollinating flowers.3. 听力题：The study of chemicals and their reactions is called ______.4. 填空题：We should _______ (帮助) those in need.5. 填空题：We will go to the ________ (水族馆) next week.6. 选择题：What do we call the practice of keeping animals for food, work, or companionship?A. AgricultureB. FarmingC. DomesticationD. Husbandry答案:C7. 填空题：My _____ (表妹) is coming to visit.8. 听力题：My mom loves to organize ____ (events).9. 听力题：Light can be split into different colors using a _______.The rabbit's fur is very _______ (兔子的毛非常_______).11. 填空题：我的朋友喜欢 _______ (活动). 她觉得这很 _______ (形容词)12. 填空题：I feel _______ when I dance.13. 填空题：The __________ (历史的交互方式) shapes our comprehension.14. 听力题：The chemical formula for ammonium chloride is ______.15. 填空题：We share ______ (秘密) with each other.16. 听力题：The rainbow is _____ after the rain. (appearing)17. 听力题：The puppy is _____ under the table. (hiding)18. 填空题：The __________ (历史的观察) offers valuable perspectives.19. 填空题：I like to water the _____ (植物) every day.20. solves in water to form a _______. (溶液) 填空题：Sunflowe21. 选择题：Which shape has three sides?A. SquareB. TriangleC. CircleD. Rectangle答案: B22. 填空题：The baby kangaroo is carried in its _________. (育儿袋)What is the capital of Spain?A. BarcelonaB. MadridC. SevillaD. Valencia答案:B24. 填空题：I love _______ (chocolate/vanilla) ice cream.25. 听力题：An acid has a pH value less than _______.26. 填空题：I have a pet ______ (小猫) named Bella. She is very ______ (活泼).27. 听力题：I ___ (love/hate) my school.28. 选择题：What do we call the time between night and day?A. DawnB. DuskC. EveningD. Noon29. 听力题：We can ___ a fun day together. (have)30. 填空题：We visit the ______ (艺术中心) for cultural events.31. 填空题：I enjoy learning new ______ (技能) and hobbies to expand my interests.32. 填空题：My _____ (小鸟) sings every morning.33. 填空题：The _______ (Cold War) was a period of tension between the US and the Soviet Union.34. 选择题：Which animal is known as man’s best friend?A. CatB. DogC. HorseD. Fish答案:B35. 听力题：The Earth’s ______ is responsible for its magnetic field.36. 听力题：Star clusters can contain thousands of ______.37. 填空题：The country known for its koalas is ________ (以考拉闻名的国家是________).38. 填空题：The ________ (农业生产模式) reflects innovations.39. 选择题：What is the name of the famous ancient city in Italy known for its ruins?A. RomeB. PompeiiC. FlorenceD. Venice答案:B40. 选择题：How do you greet someone in the afternoon?A. Good morningB. Good nightC. Good afternoonD. Good evening答案:C41. 听力题：A saturated solution does not change when more solute is ______.42. 填空题：The __________ (历史的力量) drives change.43. 选择题：What is the name of the famous river in Russia?A. VolgaB. DanubeC. AmazonD. NileIn which country is the Great Pyramid located?A. GreeceB. EgyptC. ChinaD. India答案: B45. 听力题：I see a _____ (mouse) in the house.46. 听力题：The dog is barking ___. (softly)47. 选择题：What do bees produce?A. MilkB. HoneyC. SugarD. Butter48. 填空题：The ancient Romans practiced ______ (法律) to govern their society.49. 听力题：Can you _____ me the ball? (throw/catch/read)50. 听力题：My dad loves to play ____ (cricket) with friends.51. 听力题：The ________ (toothbrush) is in the bathroom.52. 听力题：The _____ (teacher/student) gives homework.53. 听力题：A ________ is a natural disaster that can occur in coastal areas.54. 听力题：An element's atomic number tells you how many _____ it has.55. 填空题：Many animals depend on plants for ______ (食物).What do you call the natural habitat of a polar bear?A. DesertB. JungleC. TundraD. Savanna答案:C57. 填空题：A lion is a powerful _______ that rules its territory with strength.58. 填空题：The _______ (马) pulls a cart.59. 小龙虾) scuttles across the riverbed. 填空题：The ____60. 填空题：The _______ (青蛙) likes to jump around.61. 选择题：What do you call the feeling of being afraid?A. HappinessB. AngerC. FearD. Surprise答案:C62. 选择题：What is the opposite of "early"?A. LateB. SoonC. QuickD. Fast63. 选择题：Where do fish live?A. TreesB. WaterC. SkyD. Land答案：B64. 听力题：The Boston Tea Party was a protest against _______ taxes.Which animal can live both in water and on land?A. FishB. BirdC. FrogD. Dog66. 听力题：The baby is sleeping ___. (quietly)67. 填空题：The _______ (The Bolshevik Revolution) established the Soviet regime.68. 听力题：I have a ___ (hobby/job) that I enjoy.69. 选择题：What do you call the place where a river meets the sea?A. DeltaB. EstuaryC. MouthD. Source答案:B70. 听力题：We like to eat _____ (pizza/salad) for lunch.71. 填空题：A goldfish can recognize its owner's ______ (声音).72. 听力题：A __________ is a way to represent a chemical reaction.73. 填空题：I want to _______ (学习) about history.74. 填空题：The flower pot is on the _______ (花盆在_______上).75. 听力题：A tornado is a fast-moving ______.76. 听力题：A _____ is a phenomenon where a star explodes.What do you call the main character in a play?A. ActorB. DirectorC. ProtagonistD. Scriptwriter78. 填空题：The ancient Greeks contributed to the development of _____ and science.79. 选择题：What do you call the leader of a country?A. PresidentB. MayorC. JudgeD. Teacher答案: A80. 选择题：What do we call the chemical process that plants use to make food?A. PhotosynthesisB. RespirationC. FermentationD. Digestion答案: A. Photosynthesis81. 填空题：Cleopatra was the last active ruler of the ________ (埃及).82. 听力题：I want to ___ a great leader. (become)83. 填空题：I love reading books about ________ (恐龙) and learning about their ________ (历史).84. 填空题：I share my toys with my __________. (兄弟姐妹)85. 填空题：I like to watch ________ (儿童节目) on Saturday mornings.86. 选择题：What is the opposite of happy?A. SadB. AngryD. Tired87. 填空题：A crab scuttles sideways on the _______ and digs in the sand.88. 选择题：What is the capital of Lesotho?A. MaseruB. MaputoC. MbabaneD. Gaborone答案:A89. 填空题：The __________ (历史的丰富性) fosters appreciation.90. 填空题：I enjoy watching ________ (比赛) at the stadium.91. 听力题：The butterfly lands on a _____ flower.92. 选择题：What do we call a story that is not real?A. FictionB. Non-fictionC. BiographyD. History93. 听力题：His favorite movie is a ________.94. 选择题：What do you call the event where people come together to discuss important issues?A. MeetingB. ConferenceC. AssemblyD. Forum答案: B95. 选择题：What is the main ingredient in chocolate?A. SugarB. Cocoa beansC. Milk答案:B96. 听力题：The process of heating something to kill bacteria is called ______.97. 听力题：The Earth's crust can be altered by human ______.98. 填空题：My __________ (玩具名称) has a cute little tail.99. 听力题：The sun is ___ in the sky. (bright)100. 选择题：What do we call the study of fungi?A. MycologyB. BotanyC. ZoologyD. Bacteriology答案:A。

海淀区2024届高三二模英语试题

海淀区2023-2024学年第二学期期末练习高三英语 2024.5本试卷共 10 页，100 分。

考试时长 90 分钟。

考生务必将答案答在答题卡上，在试卷上作答无效。

考试结束后，将本试卷和答题卡一并交回。

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。

Movement is our first language; I believe we’re born to dance. I’ve always had a special liking for dance, and my job.I got great 1 working in the therapeutic ( 治疗的) world; it felt more like a calling. I enjoyed every moment; my purpose and mission 2 me. My highlights are when I’ve witnessed once dull and hopeless eyes light up when the person felt seen, heard, and accepted.Then, ill health struck. As my health declined progressively, I had to stop doing what I loved.3 , all I had was being able to facilitate the occasional workshop when opportunity and energy aligned (一致). Chronic fatigue syndrome (慢性疲劳综合症) is a merciless beast.In 2020, the unimaginable happened. In addition to soul-destroying feeling of being4 , I began experiencing frequent vocal challenges of varying degrees. I could no longer accept facilitation invitations because my5 was now unreliable. I grieved, feeling like I was being swallowed by a damp, dark fog.After an extended period of being in self-pity, I 6 my thinking. I have internal value. My value or identity is not 7 by what I can or cannot do. Regarding my health journey, in time, I 8 this: it is what it is. For this season, this is my path.So, I started dancing again. Life is full of surprises, pleasant, unpleasant, and neutral, yet what matters is how we 9 to those surprises. Despite ongoing voice loss and health challenges, I found new ways to make a difference.You and I may not be able to choose the 10 life plays for us; however, we do get to choose how we will dance to it. May we dance with strength, courage, and grace.1. A. fame B. surprise C. pleasure D. inspiration2. A. fuelled B. attracted C. instructed D. calmed3. A. Simply B. Particularly C. Eventually D. Apparently4. A. tired B. annoyed C. disappointed D. injured5. A. mind B. sight C. sense D. voice6. A. discovered B. adjusted C. abandoned D. controlled7. A. ignored B. selected C. defined D. assisted8. A. accepted B. recalled C. questioned D. expected9. A. refer B. appeal C. turn D. respond10. A. role B. music C. joke D. game第二节（共 10 小题；每小题 1.5 分，共 15 分）阅读下列短文，根据短文内容填空。

扬州2024年05版小学六年级上册G卷英语自测题

扬州2024年05版小学六年级上册英语自测题考试时间：90分钟（总分:100）A卷考试人：_________题号一二三四五总分得分一、综合题(共计100题)1、听力题：A ____ has a thick shell and moves very slowly.2、听力题：Hydrogen is the lightest _____.3、听力题：Oxidation is the loss of ______.4、填空题：The ancient Greeks are known for their _____ and philosophy.5、听力题：A _______ can help illustrate the concept of inertia.6、填空题：The ancient Egyptians built pyramids as _____ for their leaders.7、What do we call the process of natural selection?A. EvolutionB. AdaptationC. MutationD. Speciation答案:A8、填空题：I enjoy visiting the ________ (科学博物馆) for fun.9、听力题：We need to ________ the dishes.10、听力题：A chemical reaction can result in a temperature ______.11、听力题：A ____ is known for its bright colors and beautiful plumage.12、What is the name of the fairy tale character who lived in a tower?A. CinderellaB. RapunzelC. Sleeping BeautyD. Goldilocks13、填空题：Did you see the _______ (小变色龙) change colors?14、What do we use to boil water?A. OvenB. MicrowaveC. KettleD. Toaster答案: C15、What is the capital of Turkey?A. IstanbulB. AnkaraC. IzmirD. Antalya答案: B16、听力题：The concentration of a solution is measured in _____ per liter.17、听力题：She loves to _______ (travel) overseas.18、填空题：We decided to play together. We played tag and ran around the park. I felt so ______ (7) because we laughed and enjoyed our time. After playing, we both got thirsty, so we went to buy some ice cream. It was so delicious and made us feel refreshed.19、Which animal says "meow"?A. DogB. CatC. CowD. Bird答案:B20、What do we call a baby cow?A. CalfB. KidC. LambD. Foal21、听力题：An alkali is a type of ______ that dissolves in water.22、What is the capital of Serbia?A. BelgradeB. ZagrebC. LjubljanaD. Sarajevo答案: A23、填空题：The ancient Egyptians used hieroglyphics as their form of ________.24、What is the name of the famous ancient city in Peru?A. Machu PicchuB. CuscoC. LimaD. Arequipa答案:A25、填空题：The _____ (花) blooms in the spring.26、听力题：A nova is a sudden increase in the brightness of a ______.27、填空题：The first female Nobel Prize winner was ________ (居里夫人).28、填空题：_____ (evergreen) trees stay green all year round.29、听力题：The _____ (校园) is large and green.30、听力题：The speed of light is very ______.31、填空题：I enjoy going to the ______ (公园) to relax and unwind.The elephant's large ears help it to cool off in the ________________ (热) sun.33、Which planet is known for its blue color due to methane in its atmosphere?A. NeptuneB. UranusC. EarthD. Saturn34、填空题：I enjoy visiting the ______ (水族馆) to see colorful fish and marine life.35、Which fruit is yellow?A. StrawberryB. KiwiC. BananaD. Cherry答案:C36、填空题：Many plants require ______ (阳光) for optimal growth.37、 Depression started in ________ (1929). 填空题：The Grea38、听力题：The chemical formula for acetic acid is _______.39、填空题：I love _______ (chocolate/vanilla) ice cream.40、听力题：The _____ (clouds/trees) are white.41、听力题：A parrot can often be found in the __________.42、What is the capital of France?A. BerlinB. MadridC. ParisD. Rome43、填空题：The __________ (湿地) is home to many birds.Every year, we celebrate ______ (感恩节) with a big feast and share what we are thankful for.45、听力题：A _______ can be used to measure the resistance of a circuit.46、听力题：Pressure can affect the ________ of gases.47、选择题：What is the name of the famous mountain range in Asia?A. Rocky MountainsB. AndesC. HimalayasD. Alps48、填空题：He is a _____ (企业家) who started his own business.49、听力题：The sun is ________ in the sky.50、听力题：The chemical formula for palmitoleic acid is ______.51、填空题：My dad is an amazing __________ (修理工).52、填空题：A _____ (生态旅游) can focus on plant life.53、填空题：My favorite season is __________ because of the colorful leaves. (秋天)54、What is the process of a seed developing into a plant called?A. GerminationB. PropagationC. CultivationD. Growth答案: A55、听力题：Andromeda is on a collision course with the ______.The birds are ___ (chirping).57、听力题：The chemical symbol for phosphorus is ______.58、听力题：A ____ is a friendly pet that loves being around people.59、听力题：The _______ can help create a relaxing environment.60、填空题：A _____ (海豚) can leap out of the water gracefully.61、填空题：I enjoy visiting ______ on holidays.62、What do we call the process of growing plants?A. GardeningB. FarmingC. AgricultureD. All of the above答案: D. All of the above63、填空题：I like to ride my _______ (自行车) in the neighborhood.64、What do you call the highest point of a mountain?A. SummitB. BaseC. PeakD. Ridge65、填空题：I always have fun playing with my _________ (玩具蛇).66、What do we use to write on paper?A. ColorB. PencilC. BrushD. Eraser答案:B67、填空题：I have a toy _______ that spins and makes funny sounds.A garden can be a great way to teach children about ______.(花园可以是教育孩子们了解自然的好方法。

科学文献

FIRST RESULTS FROM THE ! e OSCILLATIONS SEARCH IN THE NOMAD EXPERIMENT
The NOMAD Collaboration
J. Altegoere M. Anfrevillet C. Angelinir P. Astiero M. Authiert D. Autierod A. Baldisserit M. Baldo-Ceolinn M. Bannero S. Basaj G. Bassompierreb K. Benslamaj I. Birdj B. Blumenfeldi F. Bobisutn J. Bouchezt S. Bunyatovf S. Boydv A. Buenoa L. Camillerid A. Cardinik A. Casterao P. Cattaneop V. Cavasinnir O. Clouet G. Confortog C. Contap R. Cousinsk A. De Santor T. Del Preter L. Di Lellad T. Dignanh E. do Couto e Silvad I. Donnellyt;v J. Dumarchezo L. Dumpsd C. Engsterd T. Faziob G.J. Feldmanh R. Ferrarip D. Ferrered V. Flaminior M. Fraternalip J-M. Gaillardb P. Galumianj E. Ganglero A. Geiserd D. Gepperte D. Gibinn S. Gninenkom J-J. Gomez-Cadenasd;a J. Gossett C. Go linge M. Gouanereb A. Grantd G. Grazianig A. Guglielmin C. Hagnert J. Hernandoa D. Hubbardh P. Hursth W. Hutad N. Hyettj E. Iacopinig C. Josephj D. Kekezw M. Kirsanovg B. Khomenkod O. Klimovf A. Kovzelevm V. Kuznetsovf A. Lanzap L. La Rotondac M. Lavedern C. Lazzeronir A. Letessier-Selvono J-M. Levyo L. Linssend A. Ljubicic w J. Longi A. Lupig E. Manola-Poggiolib A. Marchionnig F. Martellig J-P. Mendiburub J-P. Meyert M. Mezzetton S-R. Mishrah G. Moorheadl L. Mossuzb P. Nedelecd;b Yu. Nefedovf C. Nguyen-Mauj D. Orestanor;p J.P. Passerieuxt F. Pastorer;p L. Peakv E. Pennacchiog J-P. Perroudj H. Pessardb R. Pettip P. Petitpasb A. Placcid H. Plothow-Beschd A. Pluquett J. Poinsignont G. Polesellop D. Pollmanne B. Poped B. Popovf;o C. Poulsenl P. Rathouitt G. Renzonir C. Rodad A. Rubbiad F. Salvatorer K. Schahmanecheo B. Schmidte A. Sconzan M. Serranoo M. Seviorl D. Silloub C. Sobczynskid P. Solerv G. Sozzij D. Steelei P. Ste end M. Steiningerj M. Stipcevic w T. Stolarczykt G. Taylorl S. Tereshchenkof S. Toropinm A-M. Touchardo S. Toveyd M-T. Tranj E. Tsesmelisd J. Ulrichsv V. Uroso M. Valdata-Nappic;q V. Valuevb;f F. Vannuccio K. Varvellt;v M. Veltrig V. Vercesip D. Verkindtb J-M. Vieiraj M. Vot S. Volkovm F. Weberd T. Weissee M. Werlenj F. Wilsond P. Wichtd L. Wintonl B. Yabsleyv H. Zacconet

WhenHomeworkisaWasteofTime

When Homework is a Waste of TimeMost after-school assignments are based on out-of-date and often ineffective methods By Annie Murphy Paul @anniemurphypaulSept. 05, 2013We often hear passionate arguments about how American students have too much homework, or too little. But I believe that we ought to be asking a different question altogether. What should matter to parents and educators is this: How effectively do children’s after-school assignments advance learning?The evidence suggests that as of now, homework isn’t making the grade. Although surveys show that the amount of time our children spend on homework has risen over the past three decades, American students are mired in the middle of international academic rankings: 17th in reading, 23rd in science, and 31st in math, according to the latest results from the Program for International Student Assessment (PISA). In a 2008 survey, one-third of parents polled rated the quality of their children’s homework assignments as fair or poor, and four in ten said they believed that some or a great deal of homework is busywork. A recent study, published in the Economics of Education Review, reports that homework in science, English and history has “little to no impact” on students’ test scores. (The authors did note a positive effect for math homework.)Fortunately, research is available to help parents, teachers and school administrators make homework smarter, although these particular innovations have yet to be applied outside the classroom. A new discipline, known as Mind, Brain and Education, has recently emerged that is devoted to understanding and improving how people absorb, retain and apply knowledge. A collaboration between psychologists at Washington University in St. Louis and teachers at nearby Columbia Middle School, for example, lifted seventh- and eighth-grade students’ science and social studies test scores by 13 to 25 percent. The field’s methods may seem unfamiliar and even counterintuitive, but they are simple to understand and easy to carry out. After-school assignments are ripe for the kind of improvements this new science can offer.“Spaced repetition” is one example of the kind of evidence-based technique that researchers have found has a positive impact on students’ learning. Here’s how it works: instead of concentrating the study of information in large one-shot doses, as many homework assignments currently do—reading about, say, the Civil War one evening, and Reconstruction the next—learners encounter the samematerial in briefer sessions spread out over a longer period of time. With this approach, students would be re-exposed to information about the Civil War and Reconstruction in their homework a number of times during the semester. It sounds unassuming, but spaced repetition produces impressive results. Eighth-grade history students who tried a spaced approach to learning had nearly double the retention rate of students who studied the same material in a consolidated unit, reported researchers from the University of California-San Diego in 2007. The reason the method works so well goes back to the brain: when we first acquire memories, they are volatile, subject to change or to disappear. Exposing ourselves to information repeatedly over time fixes it more permanently in our minds, by strengthening the representation of the information that is embedded in our neural networks.A second learning technique, known as “retrieval practice,” employs a familiar tool—the test—in a new way: not to assess what students know, but to reinforce it. We often conceive of memory as something like a storage tank, and a test as a kind of dipstick that measures how much information we’ve put in there. But that’s not actually how the brain works. Every time we pull up a memory, we make it stronger and more lasting—so that testing doesn’t just measure, it changes. Simply reading over material to be learned, or even taking notes and making outlines, as many homework assignments require, doesn’t have this effect. In one experiment, language learners who employed the retrieval practice strategy to study vocabulary words remembered 80 percent of the words they studied, while learners who used conventional study methods remembered only about a third of them. Study subjects who used retrieval practice to learn from a science textbook retained about 50 percent more of the material than those who studied in traditional ways, reported researchers from Purdue University in 2011. [10] Students—and parents—may groan at the prospect of more tests, but the self-quizzing involved in retrieval practice need not provoke any anxiety. It’s simply an effective way to focus less on the input of knowledge (passively reading over textbooks and notes) and more on its output (calling up that same information from one’s own brain).Another common misconception about how we learn can render homework much less effective than it might be. Most of us assume that if information feels easy to absorb, we’ve learned it well. In fact, just the opposite is true. When we work hard to understand information, we recall it better; the extra effort expended signals the brain that this knowledge is worth keeping. This phenomenon, known as cognitive disfluency, promotes learning so effectively that psychologists have devised all manner of “desirable difficulties” to introduce into the learning process: for example, sprinkling a passage with punctuation mistakes, deliberately leaving out letters, shrinking font size until it’s tiny, or wiggling a document while it’s being copied so that the words come out blurry. Teachers are unlikely to startsending students home with smudged or error-filled worksheets, but there’s another kind of desirable difficulty—called interleaving—that can readily be applied to homework. An interleaved assignment mixes up different kinds of situations or problems to be practiced, instead of grouping them by type. When students can’t tell in advance what kind of knowledge or problem-solving strategy will be required to answer a question, their brains have to work harder to come up with the solution—and the result is that they learn the material more thoroughly.A study published in 2010 in the journal Applied Cognitive Psychology asked fourth-graders to work on solving four types of math problems, and then to take a test evaluating how well they had learned. The scores of those whose practice problems were mixed up were more than double the scores of those students who had practiced one kind of problem at a time. The effectiveness of interleaving has been demonstrated many times in the laboratory, yet real-world homework assignments still commonly present problems of a single type together.Homework has long been an academic laggard, slow to adopt scientifically-supported approaches to learning. No wonder it’s assailed by critics on all sides, whether they believe homework is piled on too heavily or given too sparingly. Maybe the heated debates about the amount of homework children are assigned would cool if it became clear that the homework was effectively advancing their learning. At our resource-strapped public schools, the application of such research-based strategies to homework is an untapped opportunity. Science has shown us how to turn homework into a potent catalyst for learning. Our assignment now is to make it happen.。

合肥2024年02版小学3年级F卷英语第五单元综合卷[有答案]

合肥2024年02版小学3年级英语第五单元综合卷[有答案]考试时间：90分钟（总分:120）A卷考试人：_________题号一二三四五总分得分一、综合题(共计100题共100分)1. 填空题：I love to cook ______ with my dad.2. 填空题：The _____ (植物群落) is diverse and vibrant.3. 填空题：The ancient Egyptians wrote on ______ (草纸).4. 听力题：My teacher is a ______. She supports our dreams.5. 选择题：How many hours are there in a day?A. 12B. 24C. 36D. 486. 填空题：The _______ (Vikings) were known for their seafaring and exploration.7. 听力题：A nova is a sudden increase in the brightness of a ______.8. 听力题：In a chemical reaction, the products are formed from the _____.9. 听力题：In chemistry, a solvent is the substance that does the _____.10. 听力题：A chemical equation must be balanced to comply with the law of ______.11. 听力题：The _____ (wind/snow) is blowing.12. 选择题：What do you call a person who studies space?A. BiologistB. AstronomerC. GeologistD. Physicist13. 填空题：The color change in a reaction is a sign that a __________ (变化) has occurred.14. 选择题：What is 8 x 2?A. 12B. 14C. 16D. 18答案: C15. 填空题：She is _______ (非常努力) in her studies.16. 听力题：The _______ grows tall and has green leaves.17. 选择题：What is the capital of Papua New Guinea?A. SuvaB. Port MoresbyC. HoniaraD. Apia答案:B18. 听力题：My favorite subject is _____ (math/science).19. 听力题：The phase change from gas to solid is called ______.20. 选择题：What do we call a large, round fruit that is typically orange?B. BananaC. OrangeD. Grape21. 听力题：The chemical symbol for fluorine is ______.22. 听力题：The reaction between vinegar and baking soda produces ______ gas.23. 填空题：I can create memories with my ________ (玩具).24. 选择题：How many colors are in a typical rainbow?A. 5B. 6C. 7D. 8答案:C25. 听力题：A ____ is a small animal that makes a chirping sound.26. 填空题：I have a toy _______ that rolls and spins everywhere I take it.27. 填空题：The ________ (农业与生态合作) benefits both fields.28. 听力题：The capital of Hungary is __________.29. 选择题：What is the name of the first spacecraft to land on the surface of Mars?A. Viking 1B. SpiritC. CuriosityD. Opportunity30. 填空题：My cat likes to sleep on ____.31. 选择题：What do you use to write on paper?B. PencilC. ScissorsD. Glue答案:B32. 选择题：What is the name of the fairy tale character who loses her glass slipper?A. Snow WhiteB. CinderellaC. RapunzelD. Sleeping Beauty33. 选择题：What is the main ingredient in pizza?A. DoughB. RiceC. BreadD. Salad34. 听力题：The process of ______ can lead to the creation of new ecosystems.35. 听力题：The process of fermentation produces __________ from sugars.36. 选择题：What is the name of the famous castle in Scotland?A. Edinburgh CastleB. Windsor CastleC. Neuschwanstein CastleD. Alcázar of Segovia答案:A. Edinburgh Castle37. 听力题：The Eiffel Tower is in _______.38. 听力题：The chemical symbol for technetium is _______.39. 选择题：What is the capital of Portugal?A. LisbonB. PortoC. MadridD. Barcelona答案:A40. 听力题：A ______ is a negatively charged particle in an atom.41. 选择题：What do we call a scientist who studies living things?A. ChemistB. BiologistC. PhysicistD. Geologist答案:B42. 填空题：The _____ (气候) affects what plants can grow.43. 选择题：What is the opposite of hot?A. ColdB. WarmC. DryD. Wet44. 听力题：The main gas released during combustion is __________.45. 选择题：What do you wear on your feet?A. HatB. ShirtC. ShoesD. Pants答案:C46. 听力题：A chemical reaction can be classified as ______ or endothermic.47. 填空题：I pretend to be a _________ (医生) using my toy _________ (医疗工具).48. 听力题：The element with the atomic number is ______.49. 听力题：My friend is a ______. She loves to sing in the choir.50. 听力题：The park is ________ from my house.51. n rainforest is rich in ______ (生物多样性). 填空题：The Amer52. 选择题：What is 5 + 3?A. 6B. 7C. 8D. 9答案:C53. 填空题：The ________ loves to eat grass.54. 听力题：The chemical formula for formic acid is ______.55. 填空题：My _____ (拼图) is almost complete.56. 填空题：My brother loves _______ (玩电子游戏).57. 听力题：The chemical formula for cerium(IV) oxide is _____.58. 填空题：I can ______ (保持) a balanced approach to challenges.59. 填空题：The goose honks loudly in the _______ (湖).60. 听一听，圈出与你听到的句子相符的图片。