英文习题练习
英文习题练习完整版.ppt
monopolist price discriminates?
(b) If the monopolist is not able to price discriminate, what common price does it charge?
b. the law of demand predicts downward pressure on the price of the good from its current level.
c. we say that there is a scarcity of 100 units of the good.
Exercises
1
1. Suppose Bart, Benjamin, and Brent each purchase a particular type of electric pencil sharpener at a price of $20. Bart’s willingness to pay was $22, Benjamin's willingness to pay was $25, and Brent's willingness to pay was $30. Which of the following statements is correct?
4
5. National defense（国防） is provided by the government because
a. it is impossible for private markets to produce public goods.
英语全套练习题
英语全套练习题Introduction:English is a widely spoken language around the world, and having a strong command of it is essential for effective communication in various personal and professional settings. To master the language, it is crucial to engage in comprehensive practice. In this article, we will explore a full range of exercises that cover different aspects of English language skills, including listening, speaking, reading, and writing. These exercises aim to enhance your overall English proficiency and ensure a well-rounded language learning experience.Listening Exercises:1. Dictation:- Listen to a recording and write down what you hear. Replay the recording to check your accuracy and improve any mistakes.- Use online resources or language learning apps that offer dictation exercises, where you can choose recordings based on your language level and interests.2. Listening Comprehension:- Listen to conversations, news reports, or podcasts in English. Summarize what you have heard and answer questions related to the content.- Utilize English language learning websites, which provide a wide range of listening exercises at different difficulty levels.Speaking Exercises:1. Role-Playing:- Engage in simulated conversations with a partner or a language exchange partner. Take turns playing different roles in various scenarios, such as ordering food in a restaurant or discussing a recent movie.- Practice pronunciation, intonation, and fluency by recording your conversations and listening to them. Identify areas for improvement and work on them.2. Debate and Discussion:- Choose a topic of interest and engage in debates or discussions with others. This exercise not only improves your speaking skills but also enhances critical thinking and the ability to express opinions effectively.- Join English conversation groups or participate in online forums to interact with a diverse range of English speakers.Reading Exercises:1. Comprehension:- Read English articles, newspapers, or books. After reading, summarize the main points, identify supporting details, and answer questions about the text.- Utilize online resources that provide reading materials along with comprehension questions.2. Vocabulary Expansion:- Read extensively in English to expose yourself to various words and expressions. Use context clues to infer the meanings of unfamiliar words.- Keep a vocabulary journal to record new words, their definitions, and example sentences. Review and practice using these words regularly.Writing Exercises:1. Essay Writing:- Choose a topic and write an essay in English. Focus on structuring your essay with an introduction, body paragraphs, and a conclusion. Pay attention to grammar, vocabulary, and coherence.- Seek feedback from proficient English speakers or language teachers to improve your writing skills.2. Creative Writing:- Practice creative writing by crafting stories, poems, or journal entries in English. Experiment with different genres and styles to make writing more engaging and enjoyable.- Join writing communities or workshops to receive feedback and suggestions from fellow writers.Conclusion:To achieve fluency in English, it is essential to engage in a comprehensive and well-rounded practice. By incorporating listening exercises, speaking activities, reading comprehension tasks, and writing practice into your language learning routine, you can significantly enhance your English language skills. Remember to set realistic goals andconsistently devote time and effort to these exercises. Embrace every opportunity to practice English, and you will make significant progress on your language learning journey.。
练习题(打印版)英文
练习题（打印版）英文### Practice Questions (Printable Edition)Section A: Vocabulary1. Choose the correct word to fill in the blank:- The weather was extremely harsh / haste, making it difficult for the hikers to continue their journey.- The diplomat / diploma played a crucial role in resolving the international conflict.2. Match the following words with their definitions:- Eloquent: a. A person who is not very careful- Imprudent: b. Expressing or done in an expressive and effective way- Voracious: c. Having or showing great enthusiasm for reading- Avid: d. Consuming large amounts of something quickly and eagerly3. Rewrite the following sentences using synonyms:- The innovative approach was widely praised.- The frugal lifestyle helped her save a significant amount of money.Section B: Grammar1. Fill in the blanks with the correct form of the verb inparentheses:- She has been studying (study) English for three years now.- The children were playing (play) in the park when it started to rain.2. Choose the correct sentence:- A. I would have gone to the party if I had known about it.- B. I would go to the party if I knew about it.3. Identify the errors in the following sentence and provide the correct version:- "She don't like to travel by plane because it's too much noise."Section C: Reading ComprehensionRead the passage below and answer the questions that follow:Passage:In the heart of the city, there stands a magnificent library that has been a sanctuary for book lovers for over a century. The library's collection spans various genres, from classic literature to modern science fiction, catering to the diverse tastes of its visitors. It also hosts regular events such as book signings and author talks, fostering a vibrant community of readers and writers.Questions:1. What is the main purpose of the library mentioned in thepassage?2. How does the library cater to its visitors?3. What types of events does the library host?Section D: WritingWrite a short essay (100-150 words) on the topic: "The Importance of Preserving Cultural Heritage."Answer Key:Section A: Vocabulary1. harsh, diplomat2. a. b, b. a, c. d, d. c3. The original approach was widely praised.- The economical lifestyle helped her save a significant amount of money.Section B: Grammar1. has been studying, were playing2. A3. She doesn't like to travel by plane because it's too noisy.Section C: Reading Comprehension1. The main purpose of the library is to serve as a sanctuary for book lovers.2. The library caters to its visitors by having a collection that spans various genres.3. The library hosts events such as book signings and authortalks.Section D: Writing(Sample essay not provided as it requires original content creation beyond the scope of this task.)。
英文习题练习
Solution: (a)
EpA=dqA/dpA=4 EpB=dqB/dpB=3 So, the EpA is greater than EpB, then, group B pays the higher price if the monopolist price discriminates. (b) The total demand function of the monopolist is qm = qA + qB = (100−4p)+ (60−3 p)=160-7p . The marginal revenue is MR=dTR/dp=160-14p; The marginal cost is $10, For seeking maximizing profit, it should make MR=MC, 160-14p = 10, P=150/14 So, the common price it charges is 150/14, the monopolist is not able to price discriminate.
Exercises
1. Suppose Bart, Benjamin, and Brent each purchase a particular type of electric pencil sharpener at a price of $20. Bart’s willingness to pay was $22, Benjamin's willingness to pay was $25, and Brent's willingness to pay was $30. Which of the following statements is correct? a. Had the price of the pencil sharpener been $26 rather than $20, only Brent would have been a buyer. b. Brent’s consumer surplus is the smallest of the three individual consumer surpluses. c. For the three individuals together, consumer surplus amounts to $60. d. The fact that all three individuals paid $20 for the same type of pencil sharpener indicates that each one placed the same value on that pencil sharpener.
练习题答案英文
练习题答案英文一、选择题1. Which of the following is not a fruit?a) Appleb) Bananac) Carrotd) OrangeAnswer: c) Carrot2. The capital of France is:a) Berlinb) Londonc) Parisd) RomeAnswer: c) Paris3. What is the chemical symbol for water?a) H2Ob) CO2c) O2d) N2Answer: a) H2O二、填空题4. The largest mammal in the world is the _______.Answer: Blue Whale5. The process by which plants convert light energy intochemical energy is called _______.Answer: Photosynthesis6. The formula for calculating the area of a circle is_______.Answer: πr²三、简答题7. What are the four seasons?Answer: Spring, Summer, Autumn, and Winter.8. Explain the term "biodiversity."Answer: Biodiversity refers to the variety of life on Earth, including the variety within species, between species, and of ecosystems.9. What is the significance of the Magna Carta?Answer: The Magna Carta is significant as it is one of the first documents to establish the principle that the king was not above the law and that justice should be accessible to all.四、翻译题10. 请将以下句子翻译成英文：“教育是社会进步和个人发展的关键。
一般现在时的英文练习题
一般现在时的英文练习题一般现在时是英语中最常用的时态之一，表示经常、习惯性或普遍的动作、事实或状态。
下面是一些关于一般现在时的英文练习题及其参考内容。
练习题1：用所给动词的适当形式填空。
1. He usually ____(go) to the gym in the morning.2. I always ____(drink) a cup of coffee in the morning.3. She ____(watch) TV every evening.4. They ______(play) soccer on weekends.5. We _______(not like) spicy food.参考内容1：1. goes2. drink3. watches4. play5. don't like练习题2：选择正确的选项填空。
1. Sarah ______ (plays/play) the piano every day.2. My father ________ (work/works) in a bank.3. They ________ (live/lives) in Tokyo.4. The sun _______ (rises/rise) in the east.5. We often ________ (go/goes) to the park on Sundays.参考内容2：1. plays2. works3. live4. rises5. go练习题3：改写下列句子，用一般现在时表达。
1. She is reading a book now.（变为一般现在时）2. They are studying for the exam.（变为一般现在时）3. He is watching a movie at the moment.（变为一般现在时）4. I am writing an email to my friend.（变为一般现在时）5. We are eating dinner.（变为一般现在时）参考内容3：1. She reads a book.2. They study for the exam.3. He watches a movie.4. I write an email to my friend.5. We eat dinner.练习题4：根据提供的信息，用一般现在时写出完整的句子。
小学英语练习题集,包含答案,50题,日期专项
小学英语练习题集，包含答案，50题，日期专项小学英语练习题集（日期专项）题1：写出以下日期的英文表示方式。
中文 | 英文--- | ---1月1日 |2月15日 |3月29日 |4月30日 |5月10日 |答案中文 | 英文--- | ---1月1日 | January 1st2月15日 | February 15th3月29日 | March 29th4月30日 | April 30th5月10日 | May 10th---题2：选出正确的日期表示方式。
A. March 23rdB. March 23rdC. March 23rdD. March 23rd1. March 23rd2. March 23rd3. March 23rd4. March 23rd答案1. A---题3：用英文回答，今天是几月几号？中文 | 英文--- | ---今天是1月5日 |今天是2月10日 |今天是3月15日 |今天是4月20日 |今天是5月25日 |答案中文 | 英文--- | ---今天是1月5日 | Today is January 5th.今天是2月10日 | Today is February 10th.今天是3月15日 | Today is March 15th.今天是4月20日 | Today is April 20th.今天是5月25日 | Today is May 25th.---题4：写出以下日期的英文表示方式。
中文 | 英文--- | ---10月31日 |11月15日 |12月25日 |9月30日 |8月10日 |答案中文 | 英文--- | ---10月31日 | October 31st11月15日 | November 15th12月25日 | December 25th9月30日 | September 30th8月10日 | August 10th---题5：选出正确的日期表示方式。
小学四年级英文练习题
小学四年级英文练习题一、选择题1. What is the capital city of China?A. BeijingB. ShanghaiC. Guangzhou2. How many days are there in a week?A. 6B. 7C. 83. Which month comes after October?A. NovemberB. DecemberC. September4. The opposite of "hot" is ___________.A. coldB. warmC. cool5. How do you say "hello" in English?A. Thank youB. GoodbyeC. Hello二、填空题1. I ____ going to the park tomorrow.2. My sister _____ a book every day.3. _______ is your favorite color?4. There are _____ students in my class.5. We _____ lunch at 12 o'clock.三、配对题Match the words with their meanings.1. Dog A. A place where you can buy things.2. School B. A round fruit that is red or green.3. Supermarket C. A pet that barks and wags its tail.4. Apple D. A place where you study and learn.5. Book E. An object with pages that you read.四、阅读理解Read the passage and answer the questions.My name is Sara. I am eight years old. I live in London with my parents and my little sister, Emma. I go to a primary school near my house. I love learning English and Math. My favorite subject is Science. In my free time, I like to read books and play with my friends. My mom is a teacher and my dad works in a bank.1. How old is Sara?2. What is Sara's favorite subject?3. What does Sara like to do in her free time?4. What does Sara's dad do?5. Where does Sara live?五、写作题Write a short paragraph about your favorite hobby or activity. Include what you like to do, why you enjoy it, and any special memories you have related to that hobby.答案：一、选择题1. A2. B3. A4. A5. C二、填空题1. am2. reads3. What4. twelve5. have三、配对题1. C2. D3. A4. B5. E四、阅读理解1. Sara is eight years old.2. Sara's favorite subject is Science.3. In her free time, Sara likes to read books and play with her friends.4. Sara's dad works in a bank.5. Sara lives in London.五、写作题My favorite hobby is drawing. I enjoy drawing because it allows me to be creative and express myself. When I draw, I feel relaxed and happy. I like to use different colors and create beautiful pictures. One special memory I have is when I won a drawing competition at school. It was a proud moment for me and it made me love drawing even more. I hope to continue improving my drawing skills in the future.。
小学英语练习题及答案
小学英语练习题及答案一、选择题1. What's this in English?- A. 这是一个苹果。
- B. This is an apple.- C. It's an apple.- 答案：B2. How do you say "早上好" in English?- A. Good morning.- B. Good night.- C. Good afternoon.- 答案：A3. What color is the sky?- A. It's red.- B. It's blue.- C. It's green.- 答案：B二、填空题4. My name is _______. (我的名字是)- 答案：[学生姓名]5. _______ are you from? (你来自哪里？)- 答案：China6. I have two _______. (我有两个)- 答案：brothers/sisters三、翻译题7. 请把下列句子翻译成英文。
- 这是我的家。
- 答案：This is my home.8. 请把下列句子翻译成中文。
- What's your favorite color?- 答案：你最喜欢的颜色是什么？四、连词成句9. is, this, what- 答案：What is this?10. have, I, three, books- 答案：I have three books.五、阅读理解Once upon a time, there was a little boy named Tom. He lived in a small village. Every day, he would go to the river to play with his friends. One day, he found a beautiful stone by the river. He took it home and showed it to his mother.Questions:11. Who is the main character in the story?- 答案：Tom12. Where did Tom find the beautiful stone?- 答案：By the river13. What did Tom do with the stone?- 答案：He took it home and showed it to his mother.六、作文14. 写一篇关于你的宠物的短文。
英语练习题中文
英语练习题中文1. 选择题：选择下列句子中正确的翻译。
a. "I am going to the library." 正确翻译是 "我要去图书馆。
"b. "Can you help me with my homework?" 正确翻译是 "你能帮我做作业吗？"c. "What time is it?" 正确翻译是 "几点了？"d. "I would like to order a pizza." 正确翻译是 "我想要点一份比萨。
"2. 填空题：根据中文提示，填入正确的英文单词。
- 我____（喜欢）____（游泳）。
答案：like swimming- 她____（想要）一些____（苹果）。
答案：wants some apples- 他们____（正在）____（学习）英语。
答案：are learning English3. 翻译题：将下列中文句子翻译成英文。
- 他每天早晨跑步。
答案：He runs every morning.- 她正在厨房里做饭。
答案：She is cooking in the kitchen.- 孩子们在公园里玩耍。
答案：The children are playing in the park.4. 完形填空：阅读下面的短文，从括号内选择正确的选项填入空白处。
Tom is a student. He (a) likes to read books and (b) playsfootball. Every day, he (c) gets up early and (d) goes to school by bus. After school, he (e) often plays football with his friends.a. 喜欢b. 踢足球c. 起床d. 乘坐e. 经常5. 阅读理解：阅读下面的短文，回答问题。
英文练习题答案
英文练习题答案Part 1: Vocabulary and Grammar1. Choose the correct word to complete the sentence:- The _______ of the building was completed in 2020.- Answer: construction2. Fill in the blanks with the appropriate form of the verb given in brackets:- She _______ (to play) the piano since she was five years old.- Answer: has been playing3. Rewrite the sentence in the passive voice:- The teacher will give the students a test tomorrow.- Answer: A test will be given to the students by the teacher tomorrow.Part 2: Reading ComprehensionRead the following passage and answer the questions.Passage:In the heart of the city, there stands a magnificent building known as the "Cultural Center." It is a place where people gather to enjoy various cultural events such as concerts, art exhibitions, and theater performances. The center was established in 1995 and has been a hub for culturalactivities ever since.Questions:1. What is the main purpose of the "Cultural Center"?- Answer: The main purpose of the "Cultural Center" is to provide a place for people to enjoy various cultural events.2. When was the "Cultural Center" established?- Answer: The "Cultural Center" was established in 1995.3. What types of events can be found at the "Cultural Center"? - Answer: The types of events that can be found at the "Cultural Center" include concerts, art exhibitions, and theater performances.Part 3: WritingWrite a short paragraph about the importance of learning a second language.Answer:Learning a second language is crucial in today's globalized world. It not only broadens one's horizons but also enhances cognitive abilities. Being bilingual allows for better job opportunities and the ability to communicate with a wider range of people. Moreover, it fosters a deeper understanding and appreciation of different cultures.请注意，以上内容仅为示例，实际的英文练习题及其答案应根据具体要求和教学大纲来制定。
英文单选练习题
英文单选练习题1. What is the meaning of the word "abundant"?a) limitedb) scarcec) plentifuld) inadequate2. Which sentence is grammatically correct?a) The dogs is barking loudly.b) He have gone to the store.c) They does not like pizza.d) She is studying for her exam.3. Which word is spelled correctly?a) Recieveb) Occurencec) Definatelyd) Separate4. What is the capital of Australia?a) Sydneyb) Melbournec) Canberrad) Perth5. Which sentence is an example of the past continuous tense?a) I will be going to the concert tonight.b) She has already finished her homework.c) They were playing soccer in the park.d) We have been waiting for over an hour.6. Who wrote the novel "Pride and Prejudice"?a) William Shakespeareb) Jane Austenc) Charles Dickensd) Emily Brontë7. Which of the following is not a primary color?a) Redb) Bluec) Greend) Yellow8. What is the chemical symbol for gold?a) Gdb) Auc) Agd) Pt9. Which planet is known as the "Red Planet"?a) Venusb) Marsc) Jupiterd) Saturn10. What is the largest organ in the human body?a) Brainb) Liverc) Heartd) Skin11. When did World War II end?a) 1942b) 1945c) 1950d) 193912. Who painted the Mona Lisa?a) Vincent van Goghb) Leonardo da Vincic) Pablo Picassod) Salvador Dalí13. What is the national animal of China?a) Pandab) Tigerc) Dragond) Elephant14. Which country is famous for the Taj Mahal?a) Chinab) Indiac) Egyptd) France15. What is the square root of 144?a) 10b) 12c) 14d) 1616. Who is the current President of the United States?a) Joe Bidenb) Donald Trumpc) Barack Obamad) George Washington17. Which sport is not included in the Summer Olympic Games?a) Footballb) Basketballc) Swimmingd) Ice Hockey18. What is the chemical formula for water?a) CO2b) H2Oc) NaCld) O219. Who is the author of "To Kill a Mockingbird"?a) Harper Leeb) J.K. Rowlingc) Ernest Hemingwayd) F. Scott Fitzgerald20. What is the symbol for the element sodium?a) Sb) Sac) Sod) Na。
英语每日一练习题初一
英语每日一练习题初一一、词汇练习1. 根据题目所给的单词，选择正确的英文解释。
- 快乐：A) happy B) sad C) angry- 朋友：A) friend B) enemy C) family2. 将下列单词填入句子中，使其意义完整。
- 我有一个好朋友，他的名字叫做Tom。
（friend）- 我每天放学后都会去图书馆。
（library）二、语法练习1. 用正确的时态填空。
- I ___ (be) at school yesterday.- They ___ (go) to the park last weekend.2. 选择正确的词填空。
- My brother ___ (and/with) his friends are playing soccer.三、阅读理解阅读下面的短文，并回答问题。
Tom is a student. He goes to school every day. He likes toplay soccer with his friends after school. His favoritesubject is English because he enjoys speaking with hisfriends in English. Today, he is going to the library toborrow a new English book.问题：1. What does Tom like to do after school?2. What is Tom's favorite subject?四、完形填空阅读下面的短文，从括号内选择合适的选项填入空白处。
Tom is a good student. He ___ (A) always gets up early and goes to school on time. He ___ (B) likes to read books and play sports. His favorite sport is soccer. He ___ (C) plays soccer with his friends every day after school. He ___ (D) wants to be a soccer player when he grows up.(A) never(B) also(C) never(D) always五、翻译练习将下列句子从中文翻译成英文。
英语基础对话练习题
英语基础对话练习题Dialogue 1:A: Good morning! How can I help you?B: Good morning! I would like to inquire about your English language courses.A: Certainly, we offer a variety of English courses for different levels. What level are you currently at?B: I am a beginner. I have very little knowledge of the language.A: That's not a problem. We have a beginners' course starting next week. It covers basic grammar, vocabulary, and conversation skills.B: That sounds perfect! How long does the course last?A: It is a 12-week course, with classes held twice a week for two hours each session. It is designed to give you a solid foundation in English.B: Great! How much does the course cost?A: The course fee is $500, which includes all study materials and resources. Would you like to enroll?Dialogue 2:A: Hi, how are you doing today?B: I'm good, thank you. How about you?A: I'm great, thanks for asking. By the way, have you received the invitation for our company's annual dinner?B: Yes, I got it. It's going to be held next Friday, right?A: That's correct. It will take place at the Grand Hotel. The event starts at 7 pm.B: Sounds exciting! What's the dress code for the dinner?A: The dress code is formal. Please make sure to dress accordingly.B: I will remember that. Is there anything else I need to prepare for the dinner?A: Just bring your invitation card with you. It will be required for entry. Also, there will be a raffle draw during the dinner, so make sure to bring some cash if you would like to participate.B: Thank you for the information. I'm looking forward to the dinner!Dialogue 3:A: Good afternoon, how may I assist you today?B: Hi, I have a reservation for a car rental. My name is John Smith.A: Let me check that for you. Yes, Mr. Smith, I see your reservation here. When would you like to pick up the car?B: I would like to pick it up tomorrow morning, around 9 am if possible.A: Alright, we can arrange that for you. How long will you be renting the car?B: I will need it for three days, returning it on the following Tuesday.A: That works. We have a range of vehicles available. Are you looking for a specific type?B: I would prefer a compact car, if you have one available.A: Sure, we have a few compact cars in stock. Is there anything else I can assist you with?B: No, that will be all. Thank you for your help.A: You're welcome, Mr. Smith. We will see you tomorrow for the car rental pickup.Dialogue 4:A: Good morning, welcome to our travel agency. How can I help you today?B: Good morning. I'm planning a vacation and I'm interested in booking a trip to Hawaii.A: Hawaii is a wonderful choice! When are you planning to go?B: I am thinking of going in September. Can you provide me with some options?A: Certainly. How long would you like your vacation to be?B: I have around 10 days available.A: Perfect. We have several package options for a 10-day trip to Hawaii. Is there a specific island you would like to visit?B: I'm particularly interested in visiting Maui and Oahu.A: Great choices. I can provide you with a package that includes flights, accommodations, and some activities on both islands. Would you like me to proceed with the booking?B: Yes, please. That would be wonderful. Thank you for your assistance.Dialogue 5:A: Good afternoon, how can I assist you today?B: Hi, I'm having trouble with my internet connection. It seems to be very slow.A: I apologize for the inconvenience. Let me check your account and see if there are any issues.B: Thank you. I appreciate your help.A: It appears that there is a technical problem in your area. Our technicians are already working on resolving it. It should be fixed within the next few hours.B: Alright, I understand. Is there anything I need to do on my end?A: Not at the moment. Once the issue is resolved, your internet connection should be restored automatically. If you continue to experience problems, please contact our customer support line.B: Okay, I will keep an eye on it. Thank you for your assistance.A: You're welcome. We apologize for the inconvenience and appreciate your patience.Note: The word count of the above dialogues totals approximately 770 words. Depending on the desired length of the article, additional dialogues or elaborations on the topics can be provided to meet the word count requirement.。
《英文习题练习》课件
Summary
Enhancing Writing Interest
Detailed description
Paragraph writing has various forms, allowing students to choose topics of interest for practice and enhance their writing interest.
Summary
Cultivating logical thinking ability
Detailed description
Paragraph writing requires students to organize their thoughts, arrange paragraph structure and content reasonably, which helps cultivate their logical thinking ability.
Enhance exam stress management
Practicing English exercises can help students develop better stress management skills and scope with exam pressure
Foster analytical thinking
Detailed description
VS
Cultivating Critical Thinking
Detailed description
Short article writing requires students to express their own opinions and comment on different viewpoints, which helps cultivate students' critical thinking.
英语四级练习题
英语四级练习题一、听力理解（共15分）1. 听下面短对话，从A、B、C三个选项中选出能回答问题的最佳选项。
- 例：What does the woman want to do?A) Go to the library.B) Go to the cinema.C) Stay at home.2. 听下面长对话，回答1-3题。
- 例：Why did the man call the woman?A) To ask for directions.B) To invite her to a party.C) To discuss a project.3. 听下面短文，回答4-5题。
- 例：What is the main idea of the passage?A) The importance of environmental protection.B) The benefits of urban development.C) The impact of technology on society.二、阅读理解（共20分）1. 阅读下面短文，从A、B、C、D四个选项中选出最佳选项回答问题。
- 例：What is the author's opinion on the new policy?A) It is effective.B) It is controversial.C) It is unnecessary.D) It is overdue.2. 阅读下面短文，判断下列句子是否正确（True or False）。
- 例：The company has been in business for over a century.A) True.B) False.3. 阅读下面短文，回答问题。
- 例：What is the main reason for the decline in the number of bees?A) Loss of habitat.B) Climate change.C) Pesticide use.D) Disease.三、词汇与语法结构（共25分）1. 用所给单词的适当形式填空。
1-10英语练习题
1-10英语练习题1. 选择填空：The cat is ________ the box.A) inB) onC) atD) under2. 翻译句子：请将下列中文句子翻译成英文。
“今天天气真好。
”3. 完形填空：He ________ his homework every day.A) doesB) didC) doD) don't4. 阅读理解：阅读下面的短文，然后回答问题。
Tom likes to play basketball. He plays it every weekend. What does Tom like to do?A) Play soccerB) Play basketballC) Watch TVD) Read books5. 单词拼写：根据音标 /ˈkæn.vəs/ 写出正确的英文单词。
6. 语法填空：She ________ (be) a teacher for ten years.A) isB) wasC) wereD) am7. 改错：Please correct the following sentence if it is wrong. "He don't like to eat vegetables."8. 连词成句：use, to, we, English, everyday, do.9. 翻译句子：请将下列英文句子翻译成中文。
"I am looking forward to seeing you."10. 写作：写一篇不少于50字的短文，描述你最喜欢的季节以及为什么喜欢它。
自主练习题英文
自主练习题英文英文自主练习题1. Fill in the blanks with the appropriate tenses of the verbs in brackets.a. She (study) English since she was a child.b. I (live) in this city for five years.c. They (work) at the company since 2010.d. He (travel) to many countries last year.e. We (wait) for the bus for over an hour.2. Choose the correct option to complete the sentences.a. I don't have ____ money to buy a new car.1. any2. many3. muchb. Could you please pass ____ the salt?1. to2. of3. mec. She enjoys ____ books in her free time.1. reads2. reading3. to readd. I'm sorry, but I can't help ____.1. you2. your3. yourse. He goes to the gym ____ a week.1. twice2. two times3. second3. Rewrite the sentences in passive voice.a. They are building a new bridge in the city.b. He takes care of his sister's dog.c. They will organize a party next week.d. She has written a book about her travels.e. We should clean the house before guests arrive.4. Fill in the blanks with the appropriate prepositions.a. He is afraid ____ spiders.b. She is interested ____ photography.c. The keys are on the table, ____ the vase.d. We walked ____ the park and enjoyed the scenery.e. The cat is hiding ____ the bed.5. Choose the correct option to complete the sentences.a. I _______ to the store yesterday.1. go2. went3. is goingb. She _______ English for six years.1. study2. studies3. studiedc. They _______ to the beach when it started raining.1. go2. went3. were goingd. We _______ soccer every weekend.1. play2. plays3. playede. He _______ me a present on my birthday.1. give2. gave3. gives6. Complete the sentences with the correct form of the verbs.a. She _____ (cook) dinner when I arrived.b. They _______ (study) for the exam all night.c. He _______ (not see) that movie yet.d. We _______ (travel) to Europe last summer.e. I _______ (not play) tennis for a long time.7. Choose the words that best fit in the given context.a. The dog is _______ its tail.1. chasing2. chased3. chasesb. The concert was _______ last night.1. enjoy2. enjoyably3. enjoyablec. I'm _______ tired to go out tonight.1. too2. very3. enoughd. She _______ won the competition.1. hardly2. nearly3. completelye. The students _______ to the teacher's lecture attentively.1. listens2. listened3. are listening8. Rearrange the words to form grammatically correct sentences.a. the / cancel / football / match / rain / was / due / to / the / heavy / . /b. delicious / made / cake / she / a / for / her / birthday / .c. interested / going / are / in / dinner / for / you / out / ?d. to / doesn't / have / she / time / go / to / the / movies / .e. the / book / my / read / sister / an / entire / weekend / in / .9. Correct the errors in the following sentences.a. He don't like to eat vegetables.b. We was going to the beach when it rained.c. She have been studying French for three years.d. I'm really interesting in learning how to play guitar.e. They goes to the gym every day.10. Write a short paragraph (5-6 sentences) about your favorite hobby or activity.These practice questions are designed to help you improve your English skills. Remember to study regularly and practice using the language in various contexts. Good luck!。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
b. Brent’s consumer surplus is the smallest of the three individual consumer surpluses.
a. increase the supply of education.
b. decrease the supply of education.
c. increase the demand for education. d. decrease the demand for education.
5. National defense（国防） is provided by the government because
a. $5 and 50 b. $5 and 100 c. $10 and 50 d. $10 and 100
8. Let the demand and supply for a good be given by
qd = 1600−38p qs = 2 p + 400 What is the equilibrium quantity and price? Solution：
a. the law of supply predicts(预报） upward pressure on the price of the good from its current level.
b. the law of demand predicts downward pressure on the price of the good from its current level.
qd = qs 1600−38p = 2p + 400
Solve it, p = 30, qd = qs = 2p + 400 =460 So, the equilibrium quantity is 460, and the
equilibrium price is 30.
9. A monopolist has a unit production cost of $10. The firm has identified two distinct groups of customers. Group A has a demand curve of qA = 100−4pA , while group B has a demand curve of q B = 60−3 pB .
d. public goods increase government revenues.
6. Average total cost is very high when a small amount of output is produced because
a. average variable cost is high. b. average fixed cost is high. c. marginal cost is high. d. marginal product is high.
Solution:
(a)
EpA=dqA/dpA=4
EpB=dqB/dpB=3
So, the EpA is greater than EpB, then, group B pays the higher price if the monopolist price discriminates.
(b) The total demand function of the monopolist is qm = qA + qB = (100−4p)+ (60−3 p)=160-7p . The marginal revenue is MR=dTR/dp=160-14p; The marginal cost is $10, For seeking maximizing profit, it should make
a. it is impossible for private markets to produce public goods.
b. products provided by the government are produced more efficiently.
c. free-riders make it difficult for private markets to supply the socially optimal quantity.
MR=MC, 160-14p = 10, P=150/14
So, the common price it charges is 150/14, the
7. Suppose a firm in a competitive market received $1,000 in total revenue and had a marginal revenue of $10 for the last unit produced and sold. What is the average revenue per unit, and how many units were sold?
(a) Which group pays the higher price if the monopolist price discriminates?
(b) If the monopolist is not able to price discriminate, what common price does it charge?
2. If the quantity supplied is the same regardless of price, then supply is
a. elastic. b. perfectly elastic. c. perfectly inelastic. d. inelastic.
3. When there is a shortage of 100 units of a particular good,
Exercises
1. Suppose Bart, Benjamin, and Brent each purchase a particular type of electric pencil sharpener at a price of $20. Bart’s willingness to pay was $22, Benjamin's willingness to pay was $25, and Brent's willingness to pay was $30. Which of the following statements is correct?
c. For the three individuals together, consumer surplus amounts to $60.
d. The fact that all thrhe same type of pencil sharpener indicates that each one placed the same value on that pencil sharpener.
c. we say that there is a scarcity of 100 units of the good. d. None of the above is correct.
4. An increase in the number of college scholarships(奖学金） issued by private foundations would