新概念英语第二册课后题答案详解：Lesson53

电火花
round the wires. When it did so, it sent sparks down to the
ground and these immediately started a fire.
Lesson 53 Hot snake
最终，最后
பைடு நூலகம்消防员
灭火
At last firemen have put out a big forest fire in California.
自从那时
找到，发现
Since then, they have been trying to find out how the fire
n.，神秘，秘密
n. 解释
简单的
able to solve the mystery. The explanation was simple but very
不同寻常的
抓住
unusual. A bird had snatched up the snake from the ground and
then dropped it on to the wires. The snake then wound itself
引起
began. Forest fires are often caused by broken glass or by
烟头
粗心地，马虎地
扔掉
cigarette ends which people carelessly throw away. Yesterday
检查
the firemen examined the ground carefully, but were not able
相当地

• 大雨是造成洪水的原因。
• The heavy rain was the cause of the flood.
• reason有时与cause换用，Reason 多与for连 用,cause 多与of连用。
• They are trying to find out the reason for the forest fire.
• I have heard this story three times.
• (5)有些静态动词只能用于完成时，一般不用于进行时：
• They’ve been married for twenty years. • The war has lasted for a long time.
25
• 1) Someone has phoned you. • (打了电话)
4
• Solve v.解决；解答，解释 • solve a problem解决问题 • solve a mystery 解答一个迷团
5
•Drop & fall
• Drop vt. & vi.，表示“（使）掉下”、 “（使）落下”、“放下”：
• 当他走过那棵树时，一个苹果从树上掉了 下来。
• As he walked past the tree, an apple dropped from it.
14
• They were also quite sure that a cigarette end did not start the fire.
• start作及物动词时可以表示“使……发 生”、“引起”。 be sure that ···很确信 我肯定把钱放在衣袋里了。
I am sure that I put the money in my pocket.

新概念英语第二册第53课：HotsnakeLesson 53 Hot snake触电的蛇First listen and then answer the question.听录音，然后回答以下问题。

What caused the fire?At last firemen have put out a big forest fire in California. Since then, they have been trying to find out how the fire began. Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away. Yesterday the firemen examined the ground carefully, but were not able to find any broken glass. They were also quite sure that a cigarette end did not start the fire. This morning, however, a fireman accidentally discovered the cause. He noticed the remains of a snake which was wound round the electric wires of a 16,000-volt power line. In this way, he was able to solve the mystery. The explanation was simple but very unusual. A bird had snatched up the snake from the ground and then dropped it on to the wires. The snake then wound itself round the wires. When it did so, it sent sparks down to the ground and these immediately started a fire.参考译文消防队员们终于扑灭了加利福尼亚的一场森林大火。

新概念英语2lesson53作文答案全文共3篇示例，供读者参考篇1Lesson 53Title: My Dream JobThe question of what one wants to be when they grow up is a common conversation starter, often heard from childhood well into adult life. For many, the answer to this question may change over time as interests, skills, and circumstances evolve. However, there are some individuals who have known their dream job from a young age and have pursued it with unwavering determination.I am one of those individuals.Ever since I was a child, I have always wanted to become a veterinarian. Growing up surrounded by animals, I developed a deep love and respect for all creatures big and small. I would spend hours studying animal anatomy, reading books about different species, and volunteering at the local animal shelter. As I grew older, my passion for animals only intensified, solidifying my decision to pursue a career in veterinary medicine.To achieve my dream job, I enrolled in a rigorous veterinary medicine program at a prestigious university. The coursework was challenging, but my determination never wavered. I spent countless hours studying, attending lectures, and gaining hands-on experience in clinics and labs. I learned how to diagnose and treat various ailments in animals, perform surgeries, and provide compassionate care to both pets and their owners. It was a long and demanding journey, but I knew that every sacrifice I made was bringing me closer to my ultimate goal.After years of hard work and dedication, I finally earned my veterinary degree and began my career as a veterinarian. I now work at a busy animal hospital, where I care for a wide range of animals on a daily basis. Whether it's a sick dog, an injured bird, or a pregnant cat, I am always ready to provide the best possible care and treatment. Seeing the joy on pet owners' faces when their beloved companion is healed and healthy brings me immense satisfaction and fulfillment.In conclusion, my dream job as a veterinarian has become a reality, thanks to my unwavering dedication and passion for animals. I am grateful for the opportunities that have allowed me to pursue my passion and make a positive impact in the lives ofboth animals and their owners. I encourage everyone to follow their dreams, no matter how difficult the journey may seem, for the reward of achieving your ultimate goal is truly priceless.篇2New Concept English 2 Lesson 53 Writing AnswerThe lesson describes a young man who sees a beautiful girl on a train and feels an instant connection. He is too shy to talk to her, but he decides to write a letter to her instead. The letter is full of emotion and longing, expressing his desire to know her and be with her. The young man sends the letter but never hears back from the girl.In my opinion, the young man's decision to write a letter to the girl was brave and romantic. It takes courage to put your feelings into words and reveal them to someone you barely know. Unfortunately, the girl's lack of response may have been disappointing, but it doesn't diminish the young man's gesture.Love and connection are not always reciprocal, and sometimes we have to take risks and put ourselves out there even if there's no guarantee of a positive outcome. The young man's letter may not have led to a relationship with the girl, but itwas a step towards expressing his true feelings and being open to the possibility of love.Overall, I think the young man's decision to write the letter was a meaningful and heartfelt gesture. It shows that love and connection can be found in unexpected places, and sometimes all it takes is a moment of courage to reach out and express your feelings.In conclusion, the lesson teaches us the importance of taking risks and being vulnerable in matters of the heart. Love may not always be reciprocated, but the act of expressing our feelings is a brave and beautiful thing in itself. The young man's letter may not have been answered, but it was a powerful declaration of his emotions and desires.篇3Unfortunately, I can't provide verbatim excerpts from Lesson 53 of New Concept English 2 as it is copyrighted material. However, I can help you understand the content and guide you on how to write a composition based on the lesson.In Lesson 53 of New Concept English 2, the topic may revolve around various themes such as travel, daily life, culture, or history. You can expect to find vocabulary related to thesetopics, grammar structures for expressing opinions, describing past events, and so on.To write a composition based on the lesson, you can follow these steps:1. Start by introducing the topic and providing a brief overview of what you will be discussing.2. Use the vocabulary and grammar structures from the lesson to write sentences and paragraphs. Incorporate them naturally in your composition.3. Include your thoughts, opinions, or personal experiences related to the topic. This will make your composition more engaging and unique.4. Use transition words and phrases to connect ideas and ensure a smooth flow of the text.5. Conclude your composition by summarizing your main points or providing a final thought on the topic.Remember to proofread your composition for any grammatical errors or typos before submitting it. This will help you ensure that your writing is clear, coherent, andwell-organized.I hope this helps you with your composition based on Lesson53 of New Concept English 2. If you have any specific questions or need further assistance, feel free to ask!。

新概念英语第二册课后练习题答案详解(第53课)新概念英语第二册课后习题Lesson 531. c根据课文第二行… they have been trying to find out how the fire began 能够判断出只有c. wanted to find out what had caused the fire 最能说明消防队员仔细查看地面的原因，其他3个选择都不够全面。

2. d根据课文第10-12行A bird had snatched up the snake from the ground and then dropped it on to the wires… When it Idid so, it sent sparks down to the ground and these immediately started a fire 能够判断只有d. a snake which had been dropped on to the wires by a bird 与课文的实际内容相符，只有它是引起火灾的原因，其他3个选择都不符合课文的实际内容。

3. a只有a. since最合乎题目意思和语法。

因为本句是现在完成实行时，只有since引导的时间短语最适合于完成实行时态，表示“自从……以来”，所以应该选a.其他3个选择都不能引导合适的时间短语。

4. c本句表示时间的词是often, 表示经常性的动作，所以应该用一般现在时。

a. is causing 是实行时，b. has caused 是完成时，d. is caused by 是现在时被动语态，而本句需要主动语态。

只有c. causes 是一般现在时，第3人称单数形式，本句的主语Broken glass 是单数，所以c.最符合语法，所以选c.5. ca. almost certain(几乎肯定)，b. fairly certain(相当肯定)，c. completely certain(完全肯定)，d. nearly certain(几乎肯定)4个选择中只有c. 同前一句中的quite sure(十分确信)意义最接近，所以选c.6. c只有c. succeeded in solving it (成功解决了它)同前一句中的 was able to solve the mystery (解开了这个谜)的含义相同，所以c.是准确答案。

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Lesson 53 Hot snake【New words and expressions 】生词和短语hot adj. 带电的，充电的fireman n. 消防队员cause v. 引起； n. 原因examine v. 检查accidentally adv. 意外地，偶然地remains n. 尸体，残骸wire n. 电线volt n. 伏特（电压单位）power line 电力线solve v. 解决mystery n. 谜（无法接受地, 解释不了的）snatch v. 抓住spark n. 电火花★hot adj. 带电的, 充电的hot adj. 热的；新鲜的；棘手的；带电的, 充电的 hot-hot-hot 麻辣烫；hot-wings 辣鸡翅；hot dog 热狗 hot-tempered 火暴(脾气)的（temper n. 脾气）hot line 热线；hot topic 热门话题hot cake 热蛋糕It sells like a hot cake/cakes. 表示一个东西的畅销, 热销 best seller 畅销的东西hot potato 棘手的问题hot news 最热点的新闻★fireman n. 消防队员hydrant n. 消防栓, 消防龙头fire extinguisher 灭火器（extinguisher n. 熄灭者, 灭火器） extinguish ＝put out 灭火★cause v.& n. 引起；原因①v. 引起cause sth. 引起麻烦Carelessness causes accidents. 粗心导致事故Pride causes failure. 骄傲使人失败cause sb. to do sth. 引起某人做某事, 导致某人做某事Illness caused him to lose his temper. (lose one ’s temper 发火) ② n. 原因，强调事情发生的直接原因(一个)because 因为reason 理由，其他各种的理由(很多个)★examine v. 检查examine the soilcheck v. 核实, 核对★accidentally adv. 意外地, 偶然地 (但更趋向于“偶然” 的意思) accident －accidental －accidentallyaccident n. 事故unexpectedly adv. 出乎意料地(更趋向于“意外” 的意思)★remains n. 尸体, 残骸remains 指dead body★solve v. 解决solve the mysterysolve the problem★snatch v. 抓住catch v. 抓，如抓鱼hold v. 握着snatch v. (突然抓起来)强调动作的突然性seize v. 抓住(用力)seize my arm【Text 】At last firemen have put out a big forest fire in California. Since then, they have been trying to find out how the fire began. Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away. Yesterday the firemen examined the ground carefully, but were not able to find any broken glass. They were also quite sure that a cigarette end did not start the fire. This morning, however, a firemen accidentally discovered the cause. He noticed the remains of a snake which was wound round the electric wires of a 16,000-volt power line. In this way, he was able to solve the mystery. The explanation was simple but very unusual. A bird had snatched up the snake from the ground and then dropped it on to the wires. The snake then wound itself round the wires. When it did so, it sent sparks down to the ground and these immediately started a fire. 【课文讲解】 1、Hot snake hot snake 触电的蛇 get a electric shock 触电 2、At last firemen have put out a big forest fire in California. at last 最后，终于 put out a fire 扑灭火（put out 扑灭，熄灭，关掉） Please put the light/fire out. a fire 一场(堆)火 3、Since then, they have been trying to find out how the fire began. since then 从那时起，到现在为止 find out （经过研究、努力等）找出，发现，查出……（这里find out 的宾语是个从句） I ’ll try and find out the name of the person who saved my life yesterday. 4、Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away. broken glass 被打碎的玻璃片 cigarette ends 烟头 5、They were also quite sure that a cigarette end did not start the fire. be able to 能够；be not able to 没有能够 be sure that 对……很有把握；quite sure 相当的把握性 rather adv. 相当 fairly adv. 相当, 公正地, 诚实地 quite(＝completely)>rather>fairly 程度一个比一个轻 quite a few 颇有几个(相当多的) start a fire ＝cause a fire （start vt. 使……发生，引起） 6、This morning, however, a firemen accidentally discovered the cause. accidentally =by chance 偶然地 discover 本身含有偶然发现（某个已经存在的东西）的含义 I don ’t know who discovered America. 7、He noticed the remains of a snake which was wound round the electric wires of a 16,000-volt power line. notice 注意别人没注意的东西 the remains 表示“尸体，残骸”，必须用复数形式： The villagers were surprised to see the remains of an aeroplane near the lake. 16,000-volt power line 连字符“-” 一旦加在两个词之间, 这个词之间就失去了加复数的资格,能够加连字符的概念一定是做定语。

新概念2 第53课…a fireman accidentally discovered the cause．……一个消防队员偶然发现了起火的原因。

discover本身含有偶然发现（某个已经存在的东西）的含义：I don't know who discovered America. 我不知道谁发现美洲的。

在discover前面加上accidentally更加强了“偶然”、“意外”的含义。

He noticed the remains of a snake which was wound round the electric wires of a 16,000-volt power line.他发现了缠绕在16，000伏高压线上的一条死蛇。

（1）the remains表示“尸体”、“残骸”，必须用复数形式：wound /wuːnd/为wind的过去分词。

wind在这里不表示“蜿蜒”，而表示“卷在……上”、“缠绕”，常与around／round连用：wind sth around sth 把…缠绕在…上Did you wind this piece of wire round the tree? 是你把这根铁丝缠在树上的吗？wound, n,（刀、枪或其他武器所致的）创伤，伤口；（感情或名誉的）损害，痛苦v. （武器或其他利器）伤害，使受伤；（在感情上）使受创伤.（3）wire指具体的电线、铁丝等，line在这里指“线路”，含义比wire广。

When it did so…当它这样做时……so常用于一些动词之后，代指前面提过的某个动作／某件事，以免重复. I think so.snatch , v.抢,夺,掠取. snatch up 抓起来The thief snatched her bag and ran away. 贼把她的包抓起来逃跑了。

He snatched the paper as his mother was about to see it. 在他妈妈刚要看那张纸的时候，他把它夺走了。

【导语】新概念系列教材的经典早已不⾔⽽喻。

其⽂章的短⼩精悍，语句的幽默诙谐，语法的全⾯⽽系统，历来被公认为是适合⼤多数中学⽣课外学习的资料之⼀。

为您整理了以下内容，仅供参考。

希望可以帮助到您！如果您想要了解更多相关内容，欢迎关注！ 词汇学习 Word study cause与reason (1)cause作名词时最重要的含义是"原因"、"起因"： A fireman accidentally discovered the cause of the fire.　⼀个消防队员偶然发现了起⽕的原因。

Do you know the cause of the war?　你知道这场战争的起因吗?(cause通常与of连⽤) cause作动词时可以表⽰"使……产⽣/发⽣"、"引起"： Forest fires are often caused by broken glass or cigarette ends.　森林⽕灾时常由碎玻璃或⾹烟头引起。

What caused the accident?　事故是如何造成的? (2)reason作名词时最重要的含义是"理由"、"原因"： Give me your reasons for going there.　请告诉我你去那⾥的理由。

What was the reason for the delay?　延迟的原因是什么? 作"原因"讲时，reason与cause可以互相交换使⽤，但reason与介词for连⽤，⽽cause则与介词of连⽤： What was the cause of the delay?　(译⽂同上) reason后⾯通常跟why引导的从句： That was the reason why the meeting was put off.　这就是会议推迟的原因。

文章标题：The Power of Perseverance: A Reflection on the Essence of Lesson 53 in New Concept English Book 2In the world of language learning, perseverance often stands as the silent hero, silently propelling us forwardin our journey of acquiring new knowledge and skills. Lesson 53 in New Concept English Book 2, titled "An Expensive Camera," offers a profound insight into this very essence of perseverance. Beyond the surface-level narrative of a lost and found camera, the lesson highlights the importance of persistence and resilience in overcoming obstacles and achieving our goals.The story revolves around a man who loses his expensive camera while on a trip to the countryside. Despite the initial despair and hopelessness that might have overwhelmed him, the man does not give up. Instead, he perseveres, returning to the scene of the loss multiple times in search of his camera. His unwavering dedication and resilience are eventually rewarded when he stumbles upon a boy who has found the camera and is willing toreturn it.What stands out in this lesson is the powerful message that perseverance can yield remarkable results. The man's dogged determination to retrieve his camera serves as a powerful reminder that no matter how challenging or seemingly impossible a task may be, with persistence and a refusal to quit, we can often overcome the odds and achieve our objectives.Moreover, the lesson underscores the importance of maintaining a positive attitude even in the face of adversity. The man's optimism and refusal to accept defeat are key factors in his ultimate success. He does not allow the initial setback to define his actions or attitude, but rather uses it as a springboard to persevere and ultimately triumph.In the realm of language learning, this lesson translates into a powerful reminder that mastering a new language requires perseverance and resilience. The process of acquiring a new language is often fraught with challenges and setbacks, whether it be difficulties with pronunciation, grammar, or vocabulary. However, bypersevering and refusing to give up, we can overcome these challenges and achieve fluency in the language.Furthermore, the lesson teaches us the value of maintaining a positive mindset and approach to learning. By focusing on our progress and celebrating our small successes, we can stay motivated and engaged in the learning process. This positive attitude not only makes the learning experience more enjoyable, but it also enhances our ability to retain and apply the new knowledge we acquire.In conclusion, Lesson 53 in New Concept English Book 2 offers a profound lesson on the power of perseverance. It reminds us that with persistence, resilience, and apositive attitude, we can overcome any obstacle and achieve our goals. Whether it be in the realm of language learning or any other aspect of life, perseverance is a valuabletrait that can help us triumph in the face of adversity.**毅力的力量：对《新概念英语》第二册第53课的深度反思** 在语言学习的广阔天地里，毅力常常扮演着沉默的英雄角色，默默推动着我们在获取新知识和技能的道路上不断前行。

Lesson 53 Hot snake 触电的蛇【New words and expressions】（13）hot adj. 带电的，充电的fireman n. 消防队员cause v. 引起；n. 原因examine v. 检查accidentally adv. 意外地，偶然地remains n. 尸体，残骸wire n. 电线volt n. 伏特（电压单位）power line 电力线solve v. 解决mystery n. 谜（无法接受地, 解释不了的）snatch v. 抓住spark n. 电火花★ hot adj. 带电的，充电的同義詞fiery, flushed, burning, steaming反義詞cold, cool, frigid, icy 變化形形變hotter hottesthot－hotted－ hotted －hotting（1）熱的、炎熱的（反義詞cold）hot water ；hot weather ；a hot dayeg：Strike while the iron is hot . 趁熱打鐵.(諺)勿錯失良機。

hot 炎熱的→ warm 溫暖的→ cool 涼爽的→ chilly寒冷的→cold 寒冷的、嚴寒的（2）（調味品等）辣的eg：Pepper and mustard are hot . 胡椒和芥末都是辣的.（3）強烈的、激烈的、熱烈的have a hot temper 怒りっぽいa hot debate 激烈的討論get hot on rock music 熱衷搖滾樂（4）（新聞等）最新的，剛發生的、剛到達的hot news on the election results 選舉的結果的最新消息a magazine hot from the press 剛出版的雜誌a young man hot from school 剛從學校踏出社會的年輕人be hot on sb 迷戀某人、愛慕某人be in hot water 惹上麻煩、陷入困境(受辱)get / run into trouble 遇到麻煩a hot potato 棘手的問題、燙手山芋get hot under the collar 怒氣沖衝的；局促不安★ fireman n. 消防队员同義詞fire fighter, fire extinguisher, fire tender變化形名複firemenfireplace [ˈfaiəpleis] n.壁爐firework [ˈfaiəwə:k] n.爆竹,(常pl.)煙火fire-water消防用水；fire-fighter救火員firehouse消防隊＝fire station消防站fireproof ['faiəpru:f] adj. 耐火的, 防火的vt. 使耐火, 使防火fire-raising n. 放火、縱火★ cause v. 引起；n. 原因; 起因[C][U][(+of)]同義詞motive, reason, occasion, basis反義詞result, consequence, effect, outcome變化形名複causes 變化形動變caused caused causing（1）v. 引起、導致eg：A cigarette caused the forest fire . 香煙引起的森林大火。

新概念第二册53课作文答案英文回答：The New Concept English Second Book Lesson 53 essay assignment requires students to demonstrate their understanding of the concepts introduced in the lesson. The lesson focuses on the theme of "Friendship," and students are asked to write an essay exploring the qualities that make a good friend.In their essays, students should consider the following elements of friendship:Trust: A good friend is someone you can trust with your secrets and confidences. They will not betray your trust or use your information against you.Honesty: A good friend is honest with you, even when it is difficult. They will not lie to you or withhold information that you need to know.Loyalty: A good friend is loyal to you, even when it is not convenient or popular. They will stand up for you and support you, no matter what.Support: A good friend is supportive of you, both emotionally and practically. They will be there for you when you need them, and they will always be willing to help you achieve your goals.Respect: A good friend respects your opinions and feelings, even if they do not agree with them. They will not try to force their beliefs on you or make you feel bad about yourself.Students should also consider the following questions when writing their essays:What are the most important qualities of a good friend?Why are these qualities important?How do you demonstrate these qualities in your own friendships?中文回答：新概念英语第二册第53课作文要求学生展示对本课所介绍概念的理解。

Remains of a snake.单词详解1. hot adj. 带电的，充电的hot还可以解释为：Strike the iron while it is hot. 趁热打铁。

This dish is a bit hot. 这道菜有些辣。

I could not bear his hot temper. 我忍受不了他那急躁的脾气。

Lately, global warming has become a very hot issue.近来，全球变暖已经成为一个相当热门的话题。

2. fireman n. 消防队员3. cause v. 引起；n. 原因e.g. What caused his illness? = W hat was the cause of his illness?4. examine v. 检查翻译：医生仔细地为她做了检查。

The doctor examined her carefully.词组：physical examination 体检5. accidentally adv. 意外地，偶然地翻译：I accidentally overheard what they were saying.我偶然听到他们的谈话内容。

6. remains n. 尸体，残骸翻译：She cried loudly over her father’s remains.她对着她父亲的遗体放声大哭。

I f you don’t mind, we still have some remains of lunch.如果你不介意，我们还有中午的剩饭剩菜。

7. wire n. 电线8. volt n. 伏特（电压单位）9. power line 电力线10. solve v. 解决派生：solution n. 解决办法11. mystery n. 谜hot（受home.3) He stopped for breakfast on派生：mysterious adj. 神秘的12. snatch v. 抓住13. spark n. 电火花翻译：A single spark can start a prairie fire. 星星之火可以燎原。

新概念第二册53课作文答案英文回答：In the realm of human experience, the notion of individuality stands as a poignant paradox, both a beacon of liberation and a constant reminder of our inherent loneliness. The question of how we navigate this duality, balancing the pursuit of self-expression with the need for belonging, has haunted philosophers and artists alike for centuries.The concept of individualism, with its emphasis on personal autonomy and the uniqueness of each human, has its roots in the Enlightenment period. Philosophers such as John Locke and Immanuel Kant argued that the individual is the fundamental unit of society, possessing inherent rights and responsibilities. This view gained traction during the Romantic era, with its celebration of self-expression and the cultivation of personal experience.Individualism has had a profound impact on Western society, shaping everything from our political institutions to our cultural values. It has fueled revolutions, inspired artistic movements, and driven scientific advancements. Yet, alongside its liberating potential, individualism has also sown seeds of isolation and alienation.As we immerse ourselves in the pursuit of our ownunique path, we risk disconnecting from the collective, losing the sense of community that has been a cornerstoneof human existence since the dawn of time. The paradox of individualism lies in the fact that it both empowers and isolates us, leaving us to grapple with the bittersweet realization that we are both unique and alone.In navigating this paradox, it is essential to strike a delicate balance between the assertion of our individuality and the recognition of our interconnectedness. We must acknowledge the value of our own experiences and perspectives while remaining open to the wisdom and perspectives of others. By embracing diversity andfostering genuine connections, we can cultivate a sense ofbelonging that transcends our individual boundaries.Ultimately, the question of how to balance individualism and belonging is an ongoing dialogue, a journey of self-discovery and connection. As we traverse this path, we must constantly reassess our priorities, seeking ways to honor both our unique selves and the collective human experience.中文回答：个体的概念在人类经验领域中是一个尖锐的悖论，既是解放的灯塔，也是对我们与生俱来的孤独的不断提醒。

新概念英语第二册课后题答案详解Lesson531. c根据课文第二行… they have been trying to find out how the fire began 能够判断出只有c. wanted to find out what had caused the fire 最能说明消防队员仔细查看地面的原因，其他3个选择都不够全面。

2. d根据课文第10-12行A bird had snatched up the snake from the ground and then dropped it on to the wires… When it Idid so, it sent sparks down to the ground and these immediately started a fire 能够判断只有d. a snake which had been dropped on to the wires by a bird 与课文的实际内容相符，只有它是引起火灾的原因，其他3个选择都不符合课文的实际内容。

3. a只有a. since最合乎题目意思和语法。

因为本句是现在完成实行时，只有since引导的时间短语最适合于完成实行时态，表示“自从……以来”，所以应该选a.其他3个选择都不能引导合适的时间短语。

4. c本句表示时间的词是often, 表示经常性的动作，所以应该用一般现在时。

a. is causing 是实行时，b. has caused 是完成时，d. is caused by 是现在时被动语态，而本句需要主动语态。

只有c. causes 是一般现在时，第3人称单数形式，本句的主语Broken glass 是单数，所以c.最符合语法，所以选c.5. ca. almost certain(几乎肯定)，b. fairly certain(相当肯定)，c. completely certain(完全肯定)，d. nearly certain(几乎肯定)4个选择中只有c. 同前一句中的quite sure(十分确信)意义最接近，所以选c.6. c只有c. succeeded in solving it (成功解决了它)同前一句中的 was able to solve the mystery (解开了这个谜)的含义相同，所以c.是准确答案。

Lesson 53 Hot snake 触电的蛇★ hot adj. 带电的，充电的同义词fiery, flushed, burning, steaming反义词cold, cool, frigid, icy 变化形形变hotter hottest hot－hotted－ hotted －hotting（1）热的、炎热的（反义词cold）hot water ；hot weather ；a hot dayeg：Strike while the iron is hot . 趁热打铁.(谚)勿错失良机。

hot 炎热的→ warm 温暖的→ cool 凉爽的→ chilly寒冷的→ cold 寒冷的、严寒的（2）（调味品等）辣的eg：Pepper and mustard are hot . 胡椒和芥末都是辣的.（3）强烈的、激烈的、热烈的have a hot temper 怒りっぽいa hot debate 激烈的讨论get hot on rock music 热衷摇滚乐（4）（新闻等）最新的，刚发生的、刚到达的hot news on the election results 选举的结果的最新消息a magazine hot from the press 刚出版的杂志a young man hot from school 刚从学校踏出社会的年轻人be hot on sb 迷恋某人、爱慕某人be in hot water 惹上麻烦、陷入困境(受辱)get / run into trouble 遇到麻烦a hot potato 棘手的问题、烫手山芋get hot under the collar 怒气冲冲的；局促不安★ fireman n. 消防队员同义词fire fighter, fire extinguisher, fire tender变化形名复firemenfireplace [ˈfaiəpleis] n.壁炉firework [ˈfaiəwə:k] n.爆竹,(常pl.)烟火fire-water消防用水；fire-fighter救火员firehouse消防队＝fire station消防站fireproof ['faiəpru:f] adj. 耐火的, 防火的vt. 使耐火, 使防火fire-raising n. 放火、纵火★ cause v. 引起；n. 原因; 起因[C][U][(+of)]同义词motive, reason, occasion, basis反义词result, consequence, effect, outcome变化形名复causes 变化形动变caused caused causing （1）v. 引起、导致eg：A cigarette caused the forest fire . 香烟引起的森林大火。

新概念英语第二册Lesson 53深精讲解 Lesson 53 Hot snake下面我们开始：一、深精讲解：课文标题：1. Hot snake触电的蛇标题中可以省略名词短语、皇冠形状的名称结构和冠词。

问题：2. What caused the fire?什么导致了火灾？本句是特殊疑问句.主谓宾结构，主语是疑问代词what,谓语动词caused,宾语是名词短语the fire.3.At last firemen have put out a big forest fire in California.消防队员终于扑灭了加州的一场森林大火。

本句是主谓宾状结构，主语是firemen,谓语have put out，宾语是a big forest fire，状语1是at last，状语2是in California.4.Since then, they have been trying to find out how the fire began.从那时起，他们一直试图找出火灾的原因。

这句是宾语从句，主句是主系表结构，主语they，谓语是have been，系动词的完成时态,表语是现在分词短语trying to find out，其中，动词不定式短语to find out是现在分词trying的逻辑宾语是。

宾从是主谓状结构，主语the fire，谓语began，状语1是how，状语2是since then.5.Forest fire are often caused by broken glass or by cigarette ends which people carelessly throw away.森林火灾通常是由碎玻璃或人们扔掉的烟头引起的。

本句是定语从句，主句是主系表状结构，主语forest fire,谓语动词are,表语是过去分词caused表完成，表被动.状语1是by broken glass,状语2是by cigarette ends.定语从句，主谓宾结构，主语people，谓语动词是throw away,宾语是which，状语是carelessly.6.Yesterday the firemen examined the ground carefully, but were not able to find any broken glass.昨天，消防队员仔细查看了地面，但没有发现碎玻璃。