Timing and Precession of the Young, Relativistic Binary Pulsar PSR J1906+0746
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Timing is a crucial element in various aspects of life,whether its in business, relationships,or personal growth.The ability to seize the right moment can lead to success and fulfillment,while missing it can result in missed opportunities and regrets. Heres a detailed exploration of the importance of timing and how it can be effectively managed.Understanding the Concept of TimingTiming refers to the precise moment when an action should be taken to achieve the best possible outcome.Its about recognizing when the conditions are most favorable for a particular event or decision.This can be influenced by a range of factors,including personal readiness,external circumstances,and the readiness of others involved.Importance of Timing in Different Scenarios1.Business Decisions:In the corporate world,timing can make or break a deal. Launching a product too early or too late can lead to failure.For instance,Apples successful launch of the iPhone was not just about the innovation of the product but also about the perfect timing when the market was ready for a smartphone revolution.2.Investments:In finance,timing the market is a common strategy.Investors who buy low and sell high can maximize their returns.However,this requires a deep understanding of market trends and the ability to predict future movements,which is not always easy.3.Career Moves:Professionals often need to decide when to switch jobs or pursue further education.The right timing can lead to better opportunities and career growth, while the wrong timing might mean stepping into a stagnant market or leaving a job too soon.4.Personal Relationships:In personal life,timing is equally important.Proposing to a partner,having a serious conversation,or even breaking up requires the right moment to ensure the best outcome for all parties involved.5.Health and Fitness:Starting a new fitness regime or changing diet plans also requires timing.Starting a new routine at a time when you are least likely to be interrupted or distracted can increase the chances of success.Strategies for Effective Timing1.Research and Analysis:Understanding the context and environment is key.Thisinvolves researching market trends,personal circumstances,and the state of the industry.2.Flexibility:Being adaptable to change is important.Sometimes,the bestlaid plans need to be adjusted based on new information or unforeseen circumstances.3.Patience:Waiting for the right moment can be challenging,especially when there is pressure to act.However,patience can often lead to better opportunities.4.Risk Assessment:Evaluating the risks associated with different timing options is crucial.This can help in making informed decisions that are more likely to result in success.5.Learning from Past Experiences:Reflecting on past successes and failures can provide valuable insights into what works and what doesnt when it comes to timing.ConclusionIn conclusion,timing is a critical factor that can significantly influence the outcome of various endeavors.By being aware of the importance of timing and employing strategies to manage it effectively,one can increase the likelihood of success in both personal and professional life.Its not just about being at the right place at the right time,but also about being prepared and making the most of the opportunities that present themselves.。
Success and opportunity are two concepts that are often intertwined in the journey of life.Here is a detailed essay on the relationship between success and opportunity.Introduction:Success is a term that is often used to describe the accomplishment of a goal or the attainment of a desired outcome.Opportunity,on the other hand,refers to a set of circumstances that makes it possible to do something or a favorable juncture for acting. The essay will explore the connection between these two concepts and how they influence each other.The Role of Opportunity in Achieving Success:Opportunities are the stepping stones to success.Without the right opportunities,even the most talented and hardworking individuals may find it difficult to achieve their goals.For instance,a talented musician may not become successful if they never get the chance to perform or record their music.Opportunities can come in various forms,such as access to education,mentorship,networking,or simply being in the right place at the right time.The Preparation for Opportunities:However,opportunities alone are not enough.Success also requires preparation.The saying opportunity favors the prepared mind holds true.Individuals must be ready to seize opportunities when they arise.This readiness can come from continuous learning, skill development,and staying informed about ones field of interest.For example,a student who diligently studies and stays updated with the latest trends in their field is more likely to excel when an internship or job opportunity comes knocking.The Creation of Opportunities:While some opportunities are serendipitous,others can be created.Actively seeking out opportunities and creating them can lead to success.Entrepreneurs,for example,often create their own opportunities by identifying gaps in the market and starting businesses to fill those needs.Similarly,artists may create their own platforms for showcasing their work,such as online galleries or social media campaigns.The Importance of Timing:Timing is crucial when it comes to seizing opportunities.Being too early or too late can mean missing out on the chance for success.Understanding the right moment to act is a skill that can be developed through experience and intuition.For instance,an investor who recognizes the peak of a market trend and decides to sell at the right time can achieve significant financial success.Overcoming Challenges:Success is not a linear path,and opportunities often come with challenges.The ability to overcome obstacles and adapt to changing circumstances is a key factor in achieving success.Resilience and perseverance are essential qualities for anyone looking to capitalize on opportunities and achieve their goals.Conclusion:In conclusion,success and opportunity are closely linked.Opportunities provide the avenues for success,but they must be met with preparation,initiative,and the right timing.The journey to success is dynamic,and those who are proactive in seeking and creating opportunities,as well as those who are prepared to face challenges,are more likely to achieve their aspirations.It is a continuous process of growth,learning,and adaptation that ultimately leads to the realization of ones goals.。
【外刊精读】139. 了解青少年的大脑发育过程和特点导读:直到最近,人们曾以为人类的大脑在幼儿时期结束时就完全停止发育了。
然而,在过去的十年间,有研究表明人类的大脑从青春期开始到成年初期的这段时间内仍然在变化。
本集《外刊精读》带你走进青少年的大脑,并介绍一些与“青春期” 有关的英语表达。
一、语篇泛读Vocabulary: adolescence 词汇: 青春期What were you like as a teenager? I was a nightmare. I was rude to my parents, always stayed out late, never did my homework, hung out with the wrong people and made lots of bad decisions. Apparently, this is the age when teenagers are out of control and behave badly. Maybe, if you're a teenager now, you think this is unfair criticism or it's not your fault. Well, you might be right!Experts have found that it's a teenager's brain that is to blame. Between the ages of approximately 13 to 19 - a period known as adolescence - the brain is still developing in areas that control behaviour. This has an impact on learning and multitasking, stress and memory, sleep, addiction, and decision-making. For parents, these consequences often manifestthemselves in a variety of behaviours that they may have previously blamed on hormones or just moodiness.This is quite a new discovery, according to Professor Sarah-Jayne Blakemore, who, speaking on the BBC radio programme The Life Scientific, says "when I was at university, the dogma in the text books was that the vast majority of brain development goes on in the first few years of life and nothing much changes after mid-childhood. That dogma is completely false."So our brains are still developing much later than was originally thought. Is this the perfect excuse for teenagers to lounge around and not get their homework done on time? Of course not! According to Professor Sarah-Jayne Blakemore, it's to do with our prefrontal cortex–that's the part of our brain right at the front, just behind the forehead. She says "it’s involved in a whole range of very high-level cognitive tasks such as decision making and planning - we know that this region is undergoing very very large amounts of development during the adolescent years". This is the part of the brain critically involved in planning, and, for a teenager, this hasn't developed yet. So getting organised to do their homework, for example, can come as a bit of a challenge.I wish I’d known about this because instead of telling my teacher I’d left my homework on the bus or that the dog had eaten it. Now I could say,"Sorry sir, my brain isn’t developed enough for the cognitive task of planning my homework".二、词汇表三、测试与练习1. 阅读课文并回答问题。
In the hustle and bustle of modern life,the ability to seize the moment and achieve goals is more crucial than ever.It is a skill that can set one apart from the rest and lead to success in various aspects of life.Here are some key points to consider when discussing the importance of seizing the moment to achieve goals.Understanding the Importance of TimingThe first step in seizing the moment is recognizing the significance of timing. Opportunities do not last forever,and the right moment to act can be fleeting.It is essential to be aware of the environment and the circumstances that present themselves, allowing for swift and decisive action when the time is right.Setting Clear and Specific GoalsHaving a clear vision of what you want to achieve is fundamental.Specific,measurable, achievable,relevant,and timebound SMART goals provide a roadmap for success.They help in focusing efforts and making the most of opportunities when they arise.Developing a Sense of UrgencyA sense of urgency can be a powerful motivator.It pushes individuals to act rather than procrastinate.Cultivating this sense requires a mindset that values time and understands the potential consequences of missed opportunities.Enhancing Adaptability and FlexibilityThe ability to adapt to changing circumstances is crucial for seizing opportunities.Being flexible allows one to pivot when necessary and take advantage of unexpected opportunities that may arise.Building Resilience and PerseveranceNot every attempt to seize the moment will be successful.Building resilience and the capacity to persevere in the face of setbacks is vital.It enables individuals to learn from failures and continue striving towards their goals.Improving DecisionMaking SkillsQuick and effective decisionmaking is essential when opportunities present themselves. Developing these skills involves practice,experience,and the ability to weigh the pros and cons of different courses of action rapidly.Utilizing Available ResourcesUnderstanding and making the most of the resources at ones disposal can significantly impact the ability to seize the moment.This includes leveraging personal networks, financial resources,and technological tools.Maintaining a Growth MindsetA growth mindset encourages continuous learning and improvement.It fosters an attitude of openness to new experiences and the willingness to take on challenges,which can lead to seizing opportunities that contribute to goal achievement.Practicing MindfulnessMindfulness helps in staying present and aware,which is essential for recognizing and acting on opportunities as they arise.It involves being fully engaged in the current moment without being distracted by past or future concerns.Creating a Support SystemHaving a support system of friends,family,or mentors can provide encouragement, advice,and assistance when trying to seize the moment.They can offer different perspectives and help in making informed decisions.Reflecting on Past ExperiencesLearning from past experiences,both successes and failures,can provide valuable insights into how to better seize the moment in the future.Reflection helps in identifying patterns and understanding what works and what doesnt.In conclusion,seizing the moment to achieve goals is a multifaceted skill that involves being prepared,adaptable,and decisive.It requires a combination of personal attributes, such as resilience and a growth mindset,as well as practical skills like decisionmaking and resource utilization.By cultivating these qualities and strategies,one can increase the likelihood of success in various endeavors.。
【优化方案】〔广东专用〕高中英语电子题库 Unit1SectionⅡ知能演练轻巧夺冠新人教版必修5Ⅰ.品句填词1.Reaction to strong stimulate from the outside world is a ____________ (特征) of all animals.答案:characteristic2. From these observations we ____________ (推断出) that the moon has little or no atmosphere.答案:conclude3.I have promised her to ____________ (参加) her wedding.答案:attend4.He ____________ (击败) his elder brother at table tennis.答案:defeated5.The river has been ____________ (污染) by waste products from the factory. 答案:polluted6.The hot weather is partly to____________(谴责,责备) for the water shortage. 答案:blame7.President Obama is preparing to ____________(宣布) his new war plan on Tuesday. 答案:announce8.No one could ____________(预见) his future accurately.答案:foresee9.I want to make an____________(询问) about train times.答案:inquiry10.Then I’ll phone our family____________(医生)and make an appointment for you. 答案:physicianⅡ.选词填空to blame for;draw a conclusion;put forward;attend the meeting;absorbed in1.He has ________________ a plan on improving the efficiency.答案:put forward2.They ________________ from the facts.答案:drew a conclusion3.More than one thousand people________________.答案:attended the meeting4.He was ________________ a book that he did not hear the bell.答案:absorbed in5.Officials believe that more than one person may be ________________ the fire. 答案:to blame forⅢ.仿照文中画线局部的句子结构将给出的汉语翻译成英语1.It seemed that the water was_to_blame.The manager said that all the employees ______________(对这个错误负责).答案:were to blame for the mistake2.So many thousands of terrified people died every_time_there_was_an_outbreak. ______________________(每次Constance去巴黎的时候),she buys the new season’s fashions.答案:Every time Constance goes to Paris3.He became interested in two theories that_possibly_explained_how_cholera_killed_people.This is a magazine ______________________ (解释这家公司是怎样开展的).答案:that explains how this company develops4.Neither_its_cause_nor_its_cure was understood.______________________(我和他都不知道) about it.答案:Neither I nor he knowsⅣ.阅读理解William Shakespeare is often called the world’s greatest playwright.He wrote comedies,tragedies and historical plays in England in the last part of the 16th and the early 17th century.William Shakespeare was born in 1564 in the English town of Stratfor duponAvon.His father was a businessman and the town’s mayor.His mother came from a family that owned land near Stratford.William had three younger brothers and two younger sisters.Like other boys of middleclass families,William attended a grammar school in Stratford where he got a good education and also learned Latin.When William was 18 he married Anne Hathaway.They had three children,first Susanna and then twins,a son named Hamnet,a daughter named Judith.Hamnet died when he was 11.We don’t really kn ow what William did during the following years but in 1592 he went to London to work as a writer and actor.It was a difficult job and only the best found work in London.From 1592 to 1594 the Black Death disseminated across England.Many public places were closed and plays couldn’t be performed either.Shakespeare spent these years writing sonnets(十四行诗) and poems.When the theatres opened up again in 1594 Shakespeare joined the best acting company of the country—Lord Chamberlain’s Men.It had the best actors,the best writers and the most famous theatre—the Globe.The Globe was a huge amphitheatre(圆形剧场) without a roof.The seats were curved around a stage that was built on many levels.Plays always started at 2 o’clock in the afternoon.People who didn’t have the money to buy a seat were allowed to stand in the front of the stage.All kinds of people came to see the shows—housewives,children,noblemen and even visitors from other countries.The company also presented special plays for kings and queens. 1.Which of the following is in agreement with Shakespeare?A.Shakespeare is the world’s greatest novelist.B.William Shakespeare’s father is a farmer who lived on his land.C.William Shakespeare is the big brother of three brothers and two sisters. D.William Shakespeare comes from a family of upperclass.解析:选C。
怎样抓住淘汰时机英语作文1. Timing is everything when it comes to seizing the opportunity to eliminate competition. You have to be like a hawk, constantly scanning the horizon for the perfect moment to strike.2. It's all about being agile and adaptable in the face of changing circumstances. You can't afford to be complacent or stuck in your ways when the tides of competition are constantly shifting.3. Keep your eyes open for any signs of weakness or vulnerability in your rivals. This is your chance to pounce and gain the upper hand in the cutthroat world of business.4. Don't hesitate to take risks and make bold moves when the time is right. Fortune favors the bold, and those who are willing to take calculated risks are often the ones who come out on top.5. Remember, it's not just about being aggressive, but also about being strategic in your approach. Look for opportunities to outmaneuver your competitors and position yourself for success.6. Stay one step ahead of the game by constantly innovating and staying ahead of the curve. The key to staying ahead of the competition is to always be thinking one step ahead and anticipating their next move.7. In the fast-paced world of business, the window of opportunity can open and close in the blink of an eye.That's why it's crucial to always be on the lookout for the perfect moment to strike and eliminate your competition.。
Success and opportunity are two interconnected concepts that often go hand in hand. Heres a detailed English essay on the topic:Title:The Interplay of Success and OpportunityIntroduction:The journey to success is often paved with a series of opportunities,each presenting a chance to learn,grow,and excel.This essay explores the relationship between success and opportunity,how they influence each other,and the importance of seizing the right moments to achieve ones goals.The Definition of Success:Success is a subjective term,varying from person to person.For some,it might mean achieving professional milestones,while for others,it could be personal fulfillment or happiness.Regardless of the definition,success is often the result of hard work, dedication,and the ability to capitalize on opportunities.The Role of Opportunity:Opportunity is the chance or set of conditions that make it possible to do something or for something to happen.In the context of success,opportunities can be seen as doors that open up,allowing individuals to apply their skills,knowledge,and abilities to achieve their desired outcomes.The Importance of Recognizing Opportunities:Recognizing opportunities is a skill that can be developed.It requires an open mind,a keen eye for detail,and the ability to think creatively.Those who are adept at identifying opportunities are often the ones who find themselves on the path to success more frequently.Seizing Opportunities:Not all opportunities are created equal,and not all are worth pursuing.The ability to discern which opportunities are aligned with ones goals and values is crucial.Once identified,seizing these opportunities requires courage,initiative,and sometimes,a leap of faith.The Impact of Timing:Timing is a critical factor in the successopportunity equation.Being at the right place at the right time can significantly influence the outcome of an opportunity.However,timing is not just about luck it is also about being prepared and proactive.Case Studies:Throughout history,there are numerous examples of individuals who have achieved success by recognizing and seizing opportunities.From entrepreneurs like Steve Jobs, who saw the potential in personal computing,to scientists like Marie Curie,who discovered radium,these stories highlight the importance of opportunity in the path to success.Overcoming Challenges:Opportunities often come with challenges.Success stories are rarely without obstacles. The ability to overcome these challenges,learn from failures,and persist in the face of adversity is a hallmark of those who achieve success.Conclusion:In conclusion,success and opportunity are intertwined.Success is not a random event but a result of recognizing,seizing,and making the most of opportunities that come our way. It requires a combination of skill,timing,and perseverance.By understanding the importance of opportunities and being prepared to act on them,individuals can increase their chances of achieving their goals and finding success.Reflection:Reflecting on ones own experiences with opportunities and success can provide valuable insights into personal growth and development.It is through this reflection that we can better understand how to navigate our own paths to success in the future.。
2024年外研版英语高二上学期模拟试卷及答案指导一、听力第一节(本大题有5小题,每小题1.5分,共7.5分)1、Question: What is the name of the author being discussed in the conversation?A) Jane AustenB) Charles DickensC) Mark TwainD) Emily BrontëAnswer: B) Charles DickensExplanation: The conversation mentions a famous novel by the author, which is “Great Expectations,” a novel by Charles Dickens. Therefore, the correct answer is B) Charles Dickens.2、Question: How does the woman describe her recent trip to the mountains?A) It was very hot.B) It was quite challenging.C) It was very relaxing.D) It was quite expensive.Answer: B) It was quite challenging.Explanation: The woman in the conversation mentions that the hike up the mountain was difficult and required a lot of effort, indicating that it was challenging. Thus, the correct answer is B) It was quite challenging.3、Question 3:Conversation:M: Hi, Sarah. Are you going to the library today?W: Yes, but I’ll be leaving a bit later because I have a class until 3 PM. Q: What does Sarah plan to do after her class?(A) Go home(B) Meet a friend(C) Go to the library(D) Attend a lectureAnswer: CExplanation: The woman indicates that she will go to the library, but only after her class ends at 3 PM.4、Question 4:Conversation:W: Excuse me, Professor White. Could you give me a brief overview of today’s lecture?M: Of course. We discussed the impact of technology on communication in the 21st century.Q: What topic did Professor White cover in his lecture?(A) The history of communication(B) The future of technology(C) The influence of technology on modern communication(D) The development of 21st-century educationAnswer: CExplanation: Professor White explicitly states that the lecture covered the impact of technology on communication in the current century, which aligns with option C.5、Listen to the conversation and answer the question.W: Hey, John, did you know that the average temperature in the city for the past week was 75 degrees Fahrenheit?M: Yeah, that’s quite hig h compared to last year. It was only 60 degrees Fahrenheit last week at this time.Q: What was the average temperature in the city last week at this time last year? A: 60 degrees Fahrenheit解析:This question tests your ability to understand numbers and compare information. The key phrase to listen for is “60 degrees Fahrenheit last year at this time,” which directly gives you the answer.二、听力第二节(本大题有15小题,每小题1.5分,共22.5分)1、Question: What is the name of the author who wrote the book “To Kill a Mockingbird”?Options:A. Jane AustenB. Mark TwainC. Harper LeeD. F. Scott FitzgeraldAnswer: C. Harper LeeExplanation: “To Kill a Mockingbird” is a novel written by Harper Lee. The other options listed are authors of different famous works, but they are not the author of this specific book.2、Question: What is the capital city of France?Options:A. RomeB. ParisC. LondonD. BerlinAnswer: B. ParisExplanation: Paris is the capital city of France. The other options listed are the capitals of Italy (Rome), the United Kingdom (London), and Germany (Berlin), respectively.3.You will hear a conversation between two students, Alice and Bob, discussing their weekend plans. Listen and answer the question.Question: What activity does Alice plan to do on Saturday afternoon?A. Visit a museumB. Go hikingC. Watch a movieD. Go shoppingAnswer: BExplanation: In the conversation, Alice says, “I’m planning to g o hiking with some friends on Saturday afternoon. It should be a lot of fun!” This indicates that her plan for Saturday afternoon is to go hiking.4.You will hear a news report about the upcoming climate change conferencein Paris. Listen and answer the question.Question: According to the report, what is the main goal of the conference?A. To discuss the history of climate changeB. To find a solution to the global financial crisisC. To create a global agreement on reducing carbon emissionsD. To promote tourism in ParisAnswer: CExplanation: The news report states, “The main goal of the conference is to reach a global agreement on reducing carbon emissions to combat climate change.” This directly answers the question about the main goal of the conference.5.You will hear a conversation between two students, Tom and Sarah, discussing their weekend plans. Listen to the conversation and answer the question.Question: What does Sarah plan to do on Saturday afternoon?A. Visit a museum.B. Go to a movie with Tom.C. Attend a sports event.D. Have a quiet day at home.Answer: A. Visit a museum.Explanation: In the conversation, Sarah mentions, “I’m thinking of visiting the art museum this Saturday afternoon.” This indicates that her plan is to visit a museum.6.You will hear a news report about a new study on climate change. Listen to the report and answer the question.Question: What is the main finding of the study according to the report?A. Climate change is slowing down.B. The effects of climate change are becoming less severe.C. The rate of global warming is increasing.D. The impact of climate change is minimal.Answer: C. The rate of global warming is increasing.Explanation: The news report states, “The study indicates that the rate of global warming is accelerating at an unprecedented pace, which is causing concern among scientists.” This statement supports option C as the correct answer.7.You hear a conversation between two students discussing their weekend plans. The first student mentions going to the beach, and the second student responds with enthusiasm. What does the second student say?A)“That sounds amazing, I wish I could go with you.”B)“I’m not a big fan of the beach, but I’ll consider it.”C)“I’ve never been to the beach, but I’ll give it a try.”D)“That’s a terrible idea, I prefer staying indoors.”Answer: A)Explanation: The second student expresses enthusiasm for the first student’s plan to go to the beach. The correct response is “That sounds amazing, I wish I could go with you.”8.You hear a conversation between a teacher and a student. The student is asking for advice on choosing a major. The teacher suggests that the student consider their interests and strengths. What does the teacher say?A)“You should choose a major that you’re passionate about.”B)“I think it’s best to choose a major that will make you a lot of money.”C)“You should choose a major that will make your parents happy.”D)“You should choose a major based on what your friends are studying.”Answer: A)Explanation: The teacher advises the student to consider their interests and strengths when choosing a major. The correct response is “You should choose a major that you’re passionate about.”9.You will hear a conversation between two students discussing their favorite subjects. Listen to the conversation and answer the question.Question: What subject does the girl prefer?A. MathB. EnglishC. HistoryD. ScienceAnswer: BExplanation: In the conversation, the girl says, “I really like E nglish because it’s both challenging and fun.” This indicates that her favorite subject is English.10.You will hear a dialogue between a teacher and a student about the student’s homework. Listen to the dialogue and answer the question.Question: Why is the student worried about the homework?A. The homework is too difficult.B. The homework is due the next day.C. The student has already completed the homework.D. The student doesn’t understand the instructions.Answer: DExplanation: The teacher asks, “Why don’t you understand the instructions for the homework?” The student responds, “I’m not sure what to do with the data analysis part.” This shows that the student is worried because they don’t understand the instructions.11.You hear a conversation between two students discussing their weekend plans.A)They plan to go hiking.B)They plan to stay at home and study.C)They plan to go to a concert.Answer: B) They plan to stay at home and study.Explanation: In the conversation, one student mentions having a lot of homework and the other agrees that it’s important to focus on studying,indicating that they plan to stay at home.12.You hear a news report about a recent scientific discovery.A) A new type of technology has been developed.B) A famous scientist has passed away.C) A major medical breakthrough has been achieved.Answer: A) A new type of technology has been developed.Explanation: The news report focuses on the introduction of a new technology that has the potential to impact various fields, which is why option A is the correct answer. The other options are not mentioned in the report.13.You will hear a short conversation between two students. Listen and answer the question.Question: What are the students discussing?A. The weather forecast for the weekend.B. The deadline for an upcoming assignment.C. The latest movie they watched together.D. The location of a new café in town.Answer: B解析:In the conversation, the students are talking about the deadline for an upcoming assignment. They discuss the importance of finishing it on time and how they need to manage their time effectively.14.You will hear a short lecture about the impact of social media on young adults. Listen and answer the question.Question: According to the lecture, what is one potential negative effectof social media on young adults?A. Improved communication skills.B. Increased self-confidence.C. Decreased face-to-face social interactions.D. Enhanced educational opportunities.Answer: C解析:In the lecture, the speaker mentions that one potential negative effect of social media on young adults is the decreased face-to-face social interactions. The speaker discusses how excessive time spent on social media can lead to less personal communication and a reliance on digital interactions.15.You will hear a conversation between two students, John and Emily, discussing their favorite subjects. Listen to the conversation and choose the best answer to the following question.Question: What is the main reason Emily chose her major?A. She is interested in mathematics.B. She wants to study computer science.C. She is passionate about literature.D. She is good at economics.Answer: C. She is passionate about literature.Explanation: In the conversation, Emily mentions that she has always loved reading books and writing stories, which is why she chose to major in literature. Therefore, the correct answer is C. She is passionate about literature.三、阅读第一节(第1题7.5分,其余每题10分,总37.5分)第一题Read the following passage carefully and then answer the questions below.In recent years, the importance of environmental protection has been increasingly recognized worldwide. As the global population continues to grow and urbanization expands, the negative impact of human activities on the environment has become more evident. One of the most pressing issues is climate change, which is caused by the excessive emission of greenhouse gases. The rising temperatures are leading to more frequent and severe natural disasters, such as hurricanes, floods, and droughts. In addition to climate change, pollution from factories and vehicles has also caused significant damage to ecosystems and human health.Many countries have started to take action to mitigate the environmental problems. Renewable energy sources, such as solar and wind power, are being developed to reduce reliance on fossil fuels. Public transportation systems are being improved to encourage people to use eco-friendly modes of transport. Moreover, governments are implementing stricter regulations on industries to reduce their emissions and promote sustainable practices.Despite these efforts, it is still crucial for individuals to take responsibility for their own actions. Simple lifestyle changes, such as reducing waste, conserving water, and using energy-efficient appliances, can make a significant difference. Education and awareness are also vital in promoting aculture of environmental responsibility.Questions:1、What is the main topic of the passage?A. The benefits of renewable energy sourcesB. The negative impact of climate changeC. The role of individuals in environmental protectionD. The importance of public transportation systems2、According to the passage, what are the main causes of environmental problems?A. Climate change and pollutionB. Urbanization and overpopulationC. Deforestation and overfishingD. Fossil fuel consumption and deforestation3、Which of the following is NOT mentioned as a measure to mitigate environmental problems?A. Developing renewable energy sourcesB. Improving public transportation systemsC. Encouraging people to use eco-friendly modes of transportD. Implementing stricter regulations on industries and promoting sustainable practices4、What is the author’s main point about the role of individuals in environmental protection?A. Individuals should not take responsibility for their actions.B. Simple lifestyle changes can make a significant difference.C. Education and awareness are not important in promoting a culture of environmental responsibility.D. Individuals should only rely on governments and industries to solve environmental problems.Answers:1、C2、A3、C4、B第二题Reading PassageIn the small town of Windermere, nestled between the majestic mountains of the Lake District, there’s a hidden gem known as the Windermere Lake Steamboat Museum. This museum, which opened its doors in 1969, is dedicated to the rich history of steam-powered boats and their impact on the development of the region.The museum’s centerpiece is the world’s last remaining paddle steamer, the MV Balmoral, which was built in 1894. The Balmoral was an engineering marvel of its time, capable of carrying passengers and goods across the waters of Lake Windermere. The museum’s exhibits also include photographs, artifacts, and interactive displays that tell the story of the steamboat era.One of the most fascinating aspects of the museum is the opportunity for visitors to take a short steamboat ride on the lake, just as the early travelers would have done. The experience is not only educational but also offers a unique perspective of the landscape that has changed little over the years.The museum’s founder, Mr.Harold Pegg, was a local historian who had a deep passion for preserving the town’s heritage. He believed that the story of the steamboats was integral to understanding the development of the region and the lives of its people.Questions:1、What is the main focus of the Windermere Lake Steamboat Museum?A. The history of the town of WindermereB. The impact of steamboats on the Lake DistrictC. The life of Mr. Harold PeggD. The history of steam-powered boats and their role in the region2、What year was the MV Balmoral built?A. 1869B. 1894C. 1969D. 19403、What is a unique opportunity offered to visitors at the museum?A. A guided tour of the townB. A talk by a local historianC. The chance to take a steamboat ride on Lake WindermereD. A tasting of local cuisine4、Why did Mr. Harold Pegg establish the museum?A. To attract tourists to the townB. To showcase his own steamboat collectionC. To preserve the history of steamboats in the regionD. To promote the sale of steamboat memorabiliaAnswers:1、D2、B3、C4、C第三题Reading PassageThe following is a passage about the history and impact of the internet on modern life. Read the passage carefully and answer the questions that follow.In the late 20th century, the internet began to transform the way people communicate, work, and live. This digital revolution has had a profound impact on various aspects of society, including education, business, and entertainment. The internet has become an indispensable part of our daily lives, connecting people from all corners of the globe.The birth of the internet can be traced back to the 1960s, when the UnitedStates government initiated a project called ARPANET (Advanced Research Projects Agency Network). The primary goal of ARPANET was to create a decentralized communication network that could withstand nuclear attacks. Over time, ARPANET evolved into the modern internet we know today.1、What was the original purpose of ARPANET?A. To provide entertainment to the public.B. To create a decentralized communication network that could withstand nuclear attacks.C. To develop advanced research projects.D. To improve the quality of education.2、According to the passage, how has the internet changed our lives?A. It has made people more isolated.B. It has reduced communication between people.C. It has had a profound impact on various aspects of society.D. It has increased unemployment.3、The passage mentions that the internet has become an indispensable part of our daily lives. What does this mean?A. The internet is no longer important.B. The internet is a necessary part of our lives.C. The internet is not necessary for our lives.D. The internet is only important for some people.4、What is the main idea of the passage?A. The history of the internet.B. The impact of the internet on education.C. The impact of the internet on business.D. The impact of the internet on modern life.Answers:1、B2、C3、B4、D第四题Read the following passage and answer the questions that follow.The rise of the Internet has revolutionized the way we communicate and access information. With just a few clicks, we can now connect with people from all over the world, access a vast array of information, and even purchase products online. This technological advancement has brought both benefits and challenges to our society.In the past, communication was limited to letters, phone calls, and face-to-face meetings. Now, with email, social media, and instant messaging, we can communicate instantly with anyone, regardless of their location. This has greatly increased efficiency and convenience in our daily lives. However, it has also led to a decline in face-to-face interactions and a decrease in written communication skills.Information accessibility has also been greatly enhanced by the Internet. Libraries, once the go-to source for research, are now just one of many options. With a simple online search, we can find articles, books, and other resources in seconds. This has made education and self-learning more accessible to a wider audience. On the other hand, it has raised concerns about the reliability and accuracy of online information.Online shopping has become increasingly popular, offering convenience and a wide variety of choices. Customers can compare prices, read reviews, and even have products delivered to their doorstep. This has changed the retail landscape and forced traditional brick-and-mortar stores to adapt. However, there are concerns about the environmental impact of online shopping and the potential for fraud.1、What is the main topic of the passage?A. The advantages of the InternetB. The disadvantages of the InternetC. The impact of the Internet on communicationD. The impact of the Internet on education2、According to the passage, what is one of the challenges brought by the Internet?A. Increased efficiencyB. Decreased face-to-face interactionsC. Enhanced information accessibilityD. Improved communication skills3、How has the Internet affected libraries?A. Libraries have become obsolete.B. Libraries are no longer used for research.C. Libraries are still a valuable resource for research.D. Libraries have been replaced by online searches.4、What is a concern regarding online shopping mentioned in the passage?A. The convenience of online shopping.B. The environmental impact of online shopping.C. The wide variety of choices available.D. The potential for fraud in online transactions.Answers:1、C2、B3、C4、B四、阅读第二节(12.5分)Reading Section IIPassage:In the small coastal town of Porthaven, the community has long cherished its annual summer festival. This year, however, the festival is facing a newchallenge. The local council has proposed a plan to expand the town’s marina, which many residents believe will overshadow the festival and damage the natural beauty of the town.The festival, which has been running for over 50 years, features traditional music, local crafts, and a grand parade. It’s a highlight of the summer for both tourists and residents al ike. However, the council’s proposal has sparked a heated debate among the townspeople.Proponents of the marina expansion argue that it will bring in more tourists, boost the local economy, and provide more docking space for boats. They believe that the additional revenue generated from the expanded marina will be used to improve the town’s infrastructure and public amenities.Opponents, on the other hand, are worried that the expansion will destroy the natural landscape and disrupt the tranquility of the town. They also fear that the increased tourist traffic and commercialization will detract from the festival’s charm and the community’s sense of identity.Questions:1.What is the main issue that the community of Porthaven is currently debating?A. The closing of the local schoolB. The expansion of the town’s marinaC. The relocation of the town’s libraryD. The cancellation of the annual summer festival2.What is the primary concern of the opponents of the marina expansion plan?A. The potential increase in tourismB. The possibility of improved infrastructureC. The potential damage to the natural landscapeD. The potential for increased revenue3.Which of the following is NOT mentioned as a feature of the Porthaven summer festival?A. Traditional musicB. Local craftsC. A grand paradeD. An art gallery exhibit4.How do the proponents of the marina expansion plan expect the additional revenue to be used?A. To fund the festival activitiesB. To improve the town’s infrastructureC. To increase the festival’s budgetD. To reduce the town’s taxes5.According to the passage, what is the outcome of the debate over the marina expansion plan?A. The council has decided to cancel the expansion project.B. The town has voted to proceed with the expansion.C. The residents have decided to ignore the council’s proposal.D. The debate is still ongoing, with no clear resolution yet.Answers:1.B2.C3.D4.B5.D五、语言运用第一节 _ 完形填空(15分)完形填空Passage:“Every morning, Tom would wake up early and go f or a run. It was his way of getting ready for the day (1)_____. One morning, he noticed an elderly man sitting on a bench in the park, feeding birds. The old man looked so peaceful and content that Tom decided to (2)_____ him. ‘Good morning, sir,’ Tom gree ted with a smile. ‘Good morning, young man,’ the elderly gentleman replied. ‘I see you’re a runner. It’s a good habit to keep fit.’ Tom nodded, appreciating the (3)_____. They started talking about running, life, and the beauty of (4)_____. The old man shared stories of his youth, (5)_____ Tom with wisdom and laughter. Before leaving, the old man said, ‘Remember, son, it’s not just the destination but the journey that (6)_____.’ Tom waved goodbye, feeling inspired by their conversation. He realized that sometimes, the most unexpected (7)_____ can lead to the most profound moments. From then on, Tom made it a point to(8)_____ and appreciate every step of his journey, knowing that there is always something new to learn and someone new to meet. His runs became more than just exercise; they were opportunities for (9)_____. As days passed, Tom visited the park (10)_____, hoping to meet the old man again. Though the old man didn’t reappear, Tom never forgot his words. He continued to greet each day with (11)_____, to meet people with kindness, and to live his life to the fullest. In his heart, Tom knew that this encounter had changed him for the better.”1.A) ahead B) behind C) forward D) backward2.A) interrupt B) approach C) avoid D) ignore3.A) compliment B) advice C) suggestion D) guidance4.A) nature B) city C) town D) countryside5.A) filling B) providing C) giving D) offering6.A) matters B) exists C) happens D) appears7.A) meetings B) destinations C) journeys D) encounters8.A) slow down B) speed up C) give up D) drop out9.A) discovery B) relaxation C) adventure D) exploration10.A) regularly B) rarely C) occasionally D) seldom11.A) excitement B) disappointment C) sadness D) frustration答案1.C) forward2.B) approach3.A) compliment4.A) nature5.A) filling6.A) matters7.D) encounters8.A) slow down9.A) discovery10.A) regularly11.A) excitement以上就是这次的完形填空练习题及答案。
没有合适的时间英语作文Title: The Challenge of Finding the Right Time: A Personal Reflection。
In our fast-paced world, finding the perfect moment can often feel like trying to catch a fleeting shadow. Time,that elusive commodity, seems to slip through our fingers just when we think we've grasped it firmly. It's a topicthat has intrigued philosophers, poets, and thinkers for centuries, and yet, the question remains: is there ever a truly "right" time for anything?As I ponder this question, I am reminded of the countless instances in my own life where timing played a pivotal role. From major life decisions to mundane daily tasks, the concept of timing is always lurking in the background, subtly influencing our choices and actions.Take, for example, the decision to pursue higher education. For many, the timing of this decision is crucial.Some may choose to go straight to college after high school, while others may opt to take a gap year to travel or work. Then there are those who decide to return to school laterin life, perhaps after gaining valuable work experience or realizing a newfound passion. In each case, the timing of this decision can have a significant impact on one's academic and professional trajectory.Similarly, in matters of the heart, timing often playsa decisive role. We've all heard stories of missed connections and opportunities that arose too late or too soon. Whether it's finding the courage to confess one's feelings or taking the leap into a new relationship, the timing must align just right for things to fall into place. And yet, despite our best efforts, timing can be unpredictable, leaving us to wonder what might have been if circumstances had been different.On a more practical level, even everyday tasks can be influenced by timing. From scheduling appointments to planning meals, the rhythm of our daily lives is governedby the ticking of the clock. And yet, amidst the chaos ofmodern life, finding the perfect moment to tackle these tasks can be a challenge in itself. There are always competing priorities vying for our attention, making it difficult to determine when to focus on one thing over another.But perhaps the most profound aspect of timing is its role in shaping our personal growth and development. As we navigate the ups and downs of life, we are constantly evolving, learning, and growing. And yet, this process is not linear; it ebbs and flows with the passage of time. There are moments of clarity and insight when everything seems to align perfectly, propelling us forward on our journey. And then there are moments of uncertainty and doubt when we feel stuck, unsure of which path to take.In the end, I've come to realize that there is no universal formula for perfect timing. Instead, it's a deeply personal and subjective concept that varies from person to person and situation to situation. What may be the right time for one individual may not be the right time for another. And yet, despite its inherent ambiguity, thereis beauty in the fluidity of time, in its ability to shape our experiences and guide our decisions.So, as I continue to navigate the intricacies of life, I strive to embrace the uncertainty of timing, recognizing that it's not always about finding the perfect moment, but rather, making the most of the moments we are given. For in the end, it's not the timing itself that matters, but rather, what we choose to do with the time we have.。
a r X i v :0711.2690v 1 [a s t r o -p h ] 16 N o v 2007Timing and Precession of the Young,Relativistic BinaryPulsar PSR J1906+0746Laura Kasian ∗and PALFA Consortium †∗University of British Columbia†see ∼palfa for complete list of participantsAbstract.We present an updated timing solution and an analysis of the profile evolution -including precession and beam shape -of the young,relativistic binary pulsar J1906+0746.The 144-ms pulsar,in a 3.98-hour orbit with eccentricity 0.085[1],was initially discovered during the early stages of the ALFA (Arecibo L-band Feed Array)pulsar survey [2]using the 305-metre Arecibo telescope and was subsequently found in archival Parkes Multibeam Survey data.We have since been regularly monitoring the system using the Arecibo and Green Bank telescopes,and include data from the Jodrell Bank,Parkes,Nancay and Westerbork telescopes.The nature of the binary companion will also be discussed based on improved estimates of the total and companion masses obtained from the updated timing solution.Keywords:binary pulsars;precession;timing;pulsar mass measurements PACS:97.80.-d or 97.60.GbGAUSSIAN FITTING AND PROFILEEVOLUTIONIn order to better understand the profile evolution and in turn remove some timing noise from the system,we have created standard profiles for each epoch of data,and fit-ted sets of 1,2,or 3(as necessary)gaussians to each of the pulse and interpulse (seperately).All fitting was done using the gaussian fitting package bfit [3].After experi-menting with several different methods of aligning the gaussian templates,we decided that the smoothest align-ment was achieved by keeping the phase of the tallest gaussian constant.This also seems to produce a fairly monotonic behaviour in the phase of the interpulse.The full collection of modelled profiles is shown in Figure 1.These were used as standard profiles for timing.TEMPLATE EVOLUTIONThe changing profile shape poses a problem in the cre-ation of times-of-arrival (TOAs)for the system,as the changing profile shape allows for ambiguity in the fidu-cial point of the profile,which translates into additional timing noise for the system.Figure 2shows the changing fiducial point of the gaussian profiles over time.In order to reduce this source of timing noise,we have decided to 1)use a series of standard profiles developed from the well-modelled epochs of ASP,GASP and W APP data,and 2)align the Gaussian templates as described in the previous section.ORBITAL ABERRATIONWe obtained GBT time over four days between October 4and 12,2006,in an intensive campaign that has allowed us to study the effect of orbital aberration without the effects of the long-term profile evolution.Over such a small time span,the secular evolution of the pulse profile is negligible,and so we can be confident that any changes over orbital phase bins (as shown in Figure 3)are due solely to the change in observed emission cone direction as the pulsar moves at a relativistic orbital velocity.TIMINGWe present timing using L-band data from telescopes at Green Bank,Arecibo and Nancay.For each observation,we use the Gaussian template nearest in time.A total of 1676TOAs were fitted using the pulsar timing package TEMPO2[4].Even with the multiple templates,there was still a large amount of timing noise.We removed this using the ’fitwaves’feature of TEMPO2[5],which fit out 13harmonically-related sinusoids as illustrated in Figure 4a,resulting in the residuals presented in Figure 4b.Ta-ble 1shows the preliminary orbital and mass parameters resulting from this fit.More work is needed on the tim-ing of this system since,for example,we still need to correct for frequency-dependent profile differences that are apparent in some of the Arecibo data.From our tim-ing analysis,we obtain an improved companion mass of 1.365±0.018M ⊙,allowing us to more confidently as-sume that the companion is a neutron star.FIGURE 1.The fits of the pulse and interpulse of J1906+0746,based on ASP (Arecibo;coherent dedispersion),GASP (GBT;coherent dedispersion)and WAPP (Arecibo;spectrometer)observations,each modelled with several gaus-sian components.The pulses are spaced vertically based on observation date,and the interpulse is magnified by a factor of ten relative to the main pulse.Different machine dispersion methods account for some but not all of the apparent interpulse differences in nearby observations;the re maining differences are under investigation.The vertical line for the main pulse (left)illustrates the chosen alignment,whereas the vertical line for the interpulse demonstrates the marked phase shift of the interpulse relative to the main pulse (see proceedings by Desvi-gnes etal.)FIGURE 2.Phase offset of the profile at each of 29epochs of data.Offsets computed by comparing one epoch of data with each of 29gaussian-modelled standard profiles (as described in ’Gaussian Fitting and Profile Evolution’section).A regression line is plotted through the points,and although there is a fair amount of scatter in the data,it roughly follows a linear trend.ACKNOWLEDGMENTSThis work was supported by the NSF through a cooper-ative agreement with Cornell University to operate the Arecibo Observatory.NRAO is a facility of the NSFop-(a)(b)FIGURE 3.J1906+0746pulse and interpulse for 8orbital phase bins for two days of data are shown in the two leftmost sets of plots -a third day will be incorporated once it has been recalibrated.Note that the interpulse has been magnified by a factor of 8relative to the main pulse.The two columns of plots on the right show the difference between the profile in each orbital bin and an average profile summed over the two days of data.The difference profiles show no evidence of profile changes on an orbital timescale within the noise.We will use these limits along with the long-term profile evolution to constrain the emission beamerated under cooperative agreement by Associated Uni-versities,Inc.L.K.holds an NSERC Canada Graduate Scholarship.(a)(b)FIGURE4.a)The timing noise required13harmonically-related’fitwaves’sinusoids to befit out using TEMPO2,with a fundamental period of2.322years.The resulting variations attributed to timing noise are plotted in the top panel.In the bot-tom panel,we have subtracted from these the best-fit parabola to demonstrate the large short-term variations.Based on the amplitude of the parabola,we estimate that the use offitwaves has affected thefit period derivative at the level of about2.5%.b)Timing residuals usingTEMPO2and a relativistic timing model(Damour&Deruelle1986)[6].Residuals are black: Nancay;dark grey:Arecibo(WAPP);and light grey:GBT (GASP).REFERENCES1. D.R.Lorimer et al.,Astrophysical Journal640,428–434(2006),arXiv:astro-ph/0511523.2.J.M.Cordes et al.,Astrophysical Journal637,446–455(2006),arXiv:astro-ph/0509732.3.M.Kramer,R.Wielebinski,A.Jessner,J.A.Gil,and J.H.Seiradakis,Astron.Astrophys.Suppl.107,515–526(1994).4.G.B.Hobbs,R.T.Edwards,and R.N.Manchester,MNRAS369,655–672(2006),arXiv:astro-ph/0603381.FIGURE5.This mass–mass diagram displays constraints only from the advance of periastron˙ωand the time dila-tion/gravitational redshift parameterγ.Adding the orbital pe-riod derivative to thefit changes thefit only marginally,and the fit does not yet appear to be robust.The black dot represents the masses derived assuming general relativity.TABLE1.Preliminary Mass and Orbital Parameters for J1906+07465.G.Hobbs,A.G.Lyne,M.Kramer,C.E.Martin,andC.Jordan,MNRAS353,1311–1344(2004).6.T.Damour,and N.Deruelle,Ann.Inst.Henri PoincaréPhys.Théor.,Vol.44,No.3,p.263-29244,263–292(1986).。