英语基础训练
英语基础训练参考答案
英语基础训练参考答案一、词汇题1. A. 形容词 "famous" 表示“著名的”，符合句意。
2. B. 动词 "improve" 表示“提高”，与 "improving" 形式一致。
3. C. 副词 "suddenly" 表示“突然地”，修饰动词。
4. D. 名词 "culture" 表示“文化”，是不可数名词。
5. E. 动词 "enjoy" 表示“享受”，常用于 "enjoy doing sth" 结构。
二、语法填空1. was; 根据 "yesterday" 可知，句子使用过去时态，主语 "I" 用"was"。
2. to; 根据 "want to do sth" 结构，填入 "to"。
3. her; 根据 "she" 可知，需要使用宾格 "her"。
4. reading; 根据 "enjoy" 后接动名词，填入 "reading"。
5. interesting; 根据 "boring" 可知，需要使用 "interesting" 形成对比。
6. because; 根据 "so" 可知，前句需要使用 "because" 引导原因状语从句。
7. did n’t; 根据"didn’t go" 可知，前句需要使用否定形式"didn’t"。
8. to; 根据 "invite sb to do sth" 结构，填入 "to"。
9. happily; 根据 "adverb" 提示，使用副词 "happily" 修饰动词。
八年级上册英语基础训练
1、以下哪个单词的意思是“环境”？A. environmentB. technologyC. historyD. geography（答案：A）2、以下哪个短语的意思是“对……感兴趣”？A. be interested inB. be good atC. be proud ofD. be afraid of（答案：A）3、“I have _____ apple.”这句话中的空白处应该填入哪个冠词？A. aB. anC. theD. /（答案：B）4、以下哪个句子是正确的？A. He don't like playing football.B. He doesn't like playing football.C. He doesn't likes playing football.D. He don't likes playing football.（答案：B）5、以下哪个单词的发音中包含/i:/音？A. seeB. sheC. heD. me（答案：B）6、以下哪个句子使用了正确的现在进行时态？A. I am having a bath.B. I have a bath.C. I had a bath.D. I will have a bath.（答案：A）7、以下哪个短语的意思是“在……的帮助下”？A. with the help ofB. because ofC. thanks toD. instead of（答案：A）8、以下哪个句子中的动词用错了时态？A. I usually walk to school.B. She is always smiling.C. They will go to the park tomorrow.D. He don't eat meat.（答案：D）9、以下哪个单词的意思是“建议”？A. adviceB. exampleC. reasonD. problem（答案：A）10、以下哪个句子是正确的疑问句？A. What does your father do?B. What do your father does?C. What your father does?D. What does your father does?（答案：A）。
英语基础训练答案
英语基础训练答案英语是全球通用的语言，学习英语已经成为现代人必不可少的技能。
但是想要掌握英语技能，首先得从基础训练开始，也就是英语基础测试。
那么如何正确地完成英语基础测试呢？下面是一些常见的英语基础测试题目与答案，希望对大家有所帮助。
一、单项选择1. Have you seen Linda?A. yes, I doB. Yes, I haveC. Yes, I did正确答案：B2. I'm going to the supermarket. Would you like to come _______?A. tooB. eitherC. along正确答案：C3. My father can't stand _____ too much noise.A. hearB. hearingC. to hear正确答案：B4. This is the _____ house I have ever seen.A. more beautifulB. most beautifulC. beautifuler正确答案：B5. Tom watches TV every night, _____?A. does heB. isn't heC. doesn't he正确答案：A二、完形填空Dear Diary,Today was a __1__ day. I had a exam in the morning, and then I went to the library to __2__ some books for my paper. When I got__3__ the library, I realized that I had left my __4__ at home. So I had to go back and __5__ it. After that, I __6__ the library and found the books I __7__. But when I got __8__, I realized that I had left my__9__ in the library. So I had to go back __10__ to look for it.1. A. rough B. good C. bad正确答案：C2. A. take B. borrow C. check out正确答案：B3. A. to B. at C. in正确答案：B4. A. book B. phone C. wallet正确答案：C5. A. forget B. remember C. bring正确答案：C6. A. left B. entered C. exited正确答案：C7. A. want B. borrowed C. stole正确答案：B8. A. home B. school C. library正确答案：A9. A. paper B. wallet C. phone正确答案：B10. A. immediately B. again C. eventually正确答案：B三、阅读理解As the world's population continues to grow, and the resources available for each person decrease, the need for __1__ energy sourceshas become urgent. One solution is the development of renewable energy: energy that is generated by sources that are replenished naturally and relatively quickly, such as wind, solar, and hydro.Hydroelectric power, for example, is already a major source of energy in many countries. It is produced by the force of water flowing through turbines in dams. Because water is constantly replenished by rainfall and snowmelt, hydroelectric power is a renewable energy source that produces no emissions.Wind power is another rapidly growing source of renewable energy. Wind turbines convert the kinetic energy of the wind into electrical energy. Wind farms, or groups of turbines, are often located in coastal areas or on top of hills and mountains, where winds are consistently strong.Solar power is another promising renewable energy source. Solar panels convert sunlight into electrical energy. Although the technology is relatively new, solar power is already being used to generate electricity in many homes and businesses.1. What is renewable energy?A. Energy that is generated by sources that are depleting rapidlyB. Energy that is generated by sources that are replenished naturally and relatively quicklyC. Energy that is generated by sources that are not replenished naturally正确答案：B2. What is hydroelectric power?A. Energy that is produced from the sunB. Energy that is produced from water flowing through turbines in damsC. Energy that is produced from the wind正确答案：B3. Where are wind farms often located?A. In rural areas with low wind speedsB. In mountainous areas with unpredictable wind speedsC. In coastal areas or on top of hills and mountains, where winds are consistently strong正确答案：C4. How does solar power work?A. Solar panels convert sunlight into electrical energyB. Wind turbines convert the kinetic energy of the wind into electrical energyC. Water flowing through turbines in dams produces electrical energy正确答案：A以上是关于英语基础训练答案的一些常见测试题目和答案。
八年级上册译林版英语基础训练
一、概述八年级上册译林版英语基础训练是初中英语教材中的重要部分，通过对基础知识和技能的训练，帮助学生夯实英语学习的基础，提高阅读、写作、听力和口语能力。
本文将从课程设置、教学目标、教学方法和学习效果等方面对八年级上册译林版英语基础训练进行全面分析和评价。
二、课程设置八年级上册译林版英语基础训练根据学生的认知特点和心理发展规律，科学设置了基础模块、语法模块、阅读模块、写作模块和听力口语模块，全面覆盖了英语学习的各个方面，有助于学生全面提升英语能力。
1. 基础模块基础模块主要包括单词、词组、词汇和基础语法知识的训练，帮助学生牢固掌握英语基础知识，夯实学习基础。
2. 语法模块语法模块注重对英语语法规律的训练，帮助学生正确理解和运用英语语法，提高语言表达能力。
3. 阅读模块阅读模块涵盖了各种类型的阅读训练，包括阅读理解、阅读表达和阅读应用等，有助于提高学生的阅读能力和语言理解能力。
4. 写作模块写作模块主要包括写作技巧和写作演练，帮助学生提升写作能力，培养学生的语言表达能力和写作思维能力。
5. 听力口语模块听力口语模块注重对听力和口语能力的培养，通过各种听力材料和口语练习，帮助学生提高听力理解能力和口语表达能力。
三、教学目标八年级上册译林版英语基础训练的教学目标主要体现在以下几个方面：1. 帮助学生牢固掌握英语的基础知识和技能，包括单词、词组、词汇、语法等，打好英语学习的基础。
2. 提高学生的阅读能力和语言理解能力，培养学生良好的阅读习惯和理解能力。
3. 提升学生的写作能力，让学生学会用英语进行正确、流畅的表达，并培养学生的写作思维能力。
4. 培养学生的听力口语能力，提高学生的听力理解能力和口语表达能力，增强学生与外国人交流的能力。
四、教学方法八年级上册译林版英语基础训练采用了多种灵活多样的教学方法，包括情境教学法、任务型教学法、合作学习法等，让学生在轻松愉快的学习氛围中提升英语能力。
1. 情境教学法通过创设真实的语言情境，帮助学生在实际场景中运用英语，增强学生的语言表达能力和语言运用能力。
七年级下册英语基础训练电子版57页
七年级下册英语基础训练电子版57页1、I think ______ time with my friends is fun for me.（）[单选题] *A. spendB. spendC. spending(正确答案)D. spent2、So many people will _______ to their work after the Spring Festival. [单选题] *A. get inB. get onC. get offD. get back(正确答案)3、—What ______ your sister ______ this Saturday?—Something special, because it’s her birthday. （）[单选题] *A. are; going to doB. is; going to do(正确答案)C. does; doD. did do4、In fact, Beethoven did something brave than dying. [单选题] *A. 勇敢(正确答案)B. 冒险C. 可怕D. 奇妙5、If we want to keep fit, we should try to _______ bad habits. [单选题] *A. keepB. haveC. getD. get rid of(正确答案)6、He asked for help from his friends who owned a computer company in New York. [单选题] *A. 拥有(正确答案)B. 经营C. 工作D. 了解7、It' s a pity that we have to stay at home when we are having（）weather. [单选题] *A. so fineB. so fine aC. such fine(正确答案)D. such a fine8、You’d ______ give up smoking. [单选题] *A. goodB. wellC. better(正确答案)D. best9、30．I want to find ______ and make much money. [单选题] *A．worksB．jobC．a job(正确答案)D．a work10、( )He killed the enemy guard and made away _________the villagers. [单选题] *A. with the helpB. with helpC. with help ofD. with the help of(正确答案)11、86．—? ? ? ? ? ? ?will it take me to get to the Golden Street?—About half an hour. [单选题]*A．How farB．How long(正确答案)C．How oftenD．How much12、One thousand dollars a month is not a fortune but at least can help cover my living（）. [单选题] *A. billsB. expenses(正确答案)C. pricesD. charges13、She found her wallet（）she lost it. [单选题] *A. where(正确答案)B. whenC. in whichD.that14、On Easter children _______ eggs around the house. [单选题] *A. hunt for(正确答案)B. send forC. prepare forD. ask for15、As soon as he _______, he _______ to his family. [单选题] *A. arrived, writesB. arrived, writtenC. arrived, wrote(正确答案)D. arrives, write16、The more he tried to please her, _____she seemed to appreciate it. [单选题] *A.lessB.lesserC.the less(正确答案)D.the lesser17、Tom didn’t _______ his exam again. It was a pity. [单选题] *A. failB. winC. pass(正确答案)D. beat18、We often go to the zoo _______ Saturday mornings. [单选题] *A. atB. inC. on(正确答案)D. of19、The book is very _______. I’ve read it twice. [单选题] *A. interestB. interestedC. interesting(正确答案)D. interests20、He studied harder to _______ his reading skills. [单选题] *A. improve(正确答案)B. rememberC. memorizeD. forget21、I’d?like _______ the English club. [单选题] *A. to join inB. joinC. to join(正确答案)D. join in22、Mr. Wang is coming to our school. I can’t wait to see _______. [单选题] *A. herB. him(正确答案)C. itD. them23、The man lost his camera and he ______ it now.（）[单选题] *A. foundB. is findingC. is looking forD. looks for(正确答案)24、( ) What _____ fine weather we have these days! [单选题] *A. aB. theC. /(正确答案)D. an25、Many young people like to _______ at weekends. [单选题] *A. eat out(正确答案)B. eat upC. eat onD. eat with26、The famous writer, _____ writings for China Daily I appreciate a lot , is invited to give a speech in our university. [单选题] *A. thatB. whose(正确答案)C. whomD. who27、It took a long time to _______ Tom to go shopping with me. [单选题] *A. speakB. tellC. persuade(正确答案)D. talk28、Could you please ______ why you can’t come to attend the meeting? [单选题] *A. explain(正确答案)B. understandC. giveD. reach29、Finally,I have _____ interesting to share with you,and I am sure you will be interested in it. [单选题] *A. everythingB. something(正确答案)C. nothingD. anything30、He was?very tired，so he stopped?_____ a rest. [单选题] *A. to have(正确答案)B. havingC. haveD. had。
三年级-人教PEP(2024新版)-英语-上册-【基础训练】Revision (Period 1)
Revision (Period 1)Lesson 1一、读一读，连一连。
1．A．2．B．3．C．二、选出与句子或对话相符的图片。
（）1．This is a monkey.A．B．C．（）2．—What’s that?—It’s a dog.A．B．C．（）3．—How old are you?—Six.A．B．C．（）4．—How many birds?—Six.A．B．C．【参考答案】一、读一读，连一连。
1．【答案】C【解析】“Good morning.（早上好。
）”它的应答语还是“Good morning.”所以与C相连。
2．【答案】A【解析】“What’s your name?（你叫什么名字？）”回答时要说出自己的名字，A项“我叫Joe。
”符合，所以与A相连。
3．【答案】B【解析】“What’s this?（这是什么？）”询问事物的名称，答语是“It’s +事物名称.”B项“是一只鸭子。
”符合，所以与B相连。
二、选出与句子或对话相符的图片。
1．【答案】B【解析】句意：这是一只猴子。
A项是一只猫，B项是一只猴子，C项是一只大熊猫，故选B。
2．【答案】C【解析】句意：——那是什么？——是一只狗。
A项是一条鱼，B项是一头大象，C项是一只狗，故选C。
3．【答案】C【解析】句意：——你几岁？——六岁。
A图蛋糕上有四根蜡烛，代表四岁，B图蛋糕上有九根蜡烛，代表九岁，C图蛋糕上有六根蜡烛，代表六岁，故选C。
4．【答案】A【解析】句意：——几只鸟？——六只。
A项是六只鸟，B项是四只鸟，C项是三只鸟，故选A。
英语基础训练七年级上册人教版
英语基础训练七年级上册人教版一、词汇部分。
1. 重点单词。
- 名词。
- 家庭成员类：father（爸爸），mother（妈妈），parent（父母），grandfather（爷爷；外公），grandmother（奶奶；外婆），grandparent（祖父母；外祖父母），sister（姐妹），brother（兄弟）等。
- 学习用品类：pen（钢笔），pencil（铅笔），eraser（橡皮），ruler（尺子），book（书），notebook（笔记本）等。
- 颜色类：red（红色），blue（蓝色），green（绿色），yellow（黄色），black（黑色），white（白色）等。
- 动词。
- be动词：am，is，are。
例如：I am a student. He is my friend. They are my classmates.- 实义动词：have（有），like（喜欢），play（玩；打；弹奏）等。
例如：I have a pen. She likes reading. They play basketball.- 形容词。
- 描述人物特征的：tall（高的），short（矮的；短的），fat（胖的），thin （瘦的），nice（美好的；令人愉快的）等。
- 描述事物性质的：big（大的），small（小的），good（好的）等。
2. 单词记忆方法。
- 联想记忆法。
- 例如记忆“pencil”，可以联想“pen（钢笔）+cil”，想象一支钢笔旁边有一支铅笔。
- 分类记忆法。
- 把单词按照上述的名词、动词、形容词等类别进行分类记忆，同一类别的单词往往有相似的用法或者语境。
二、语法部分。
1. 一般现在时。
- 概念。
- 表示经常发生的动作、存在的状态或习惯性的行为。
- 结构。
- 当主语是第一人称（I/we）、第二人称（you）、复数名词或复数代词时，动词用原形。
例如：I like apples. We play football. They are students.- 当主语是第三人称单数（he/she/it或单个的人名、事物名）时，动词要变成第三人称单数形式（一般在动词原形后加 -s或 -es）。
英语基础训练五年级上册
英语基础训练五年级上册一、重点单词。
1. 家庭成员类。
- grandfather/grandpa（爷爷；外公）- grandmother/grandma（奶奶；外婆）- father/dad（爸爸）- mother/mom（妈妈）- brother（兄弟）- sister（姐妹）- uncle（叔叔；伯伯；舅舅等）- aunt（姑姑；阿姨；婶婶等）- baby brother（婴儿小弟弟）- baby sister（婴儿小妹妹）2. 描述人物特征类。
- old（年老的）- young（年轻的）- funny（滑稽的；可笑的）- kind（和蔼的；亲切的）- strict（严格的）- polite（有礼貌的）- hard - working（工作努力的）- helpful（有用的；愿意帮忙的）- clever（聪明的）- shy（害羞的）3. 星期类。
- Monday（星期一）- Tuesday（星期二）- Wednesday（星期三）- Thursday（星期四）- Friday（星期五）- Saturday（星期六）- Sunday（星期日）4. 学科类。
- Chinese（语文）- English（英语）- maths/math（数学）- music（音乐）- art（美术）- PE（体育）- science（科学）5. 食物类。
- ice cream（冰淇淋）- hamburger（汉堡包）- sandwich（三明治）- salad（沙拉）- tea（茶）- fresh（新鲜的）- healthy（健康的）- delicious（美味的）二、重点句型。
1. 描述人物。
- - Who's your English teacher?（你的英语老师是谁？）- Mr/Mrs/Miss...（……先生/夫人/小姐）- - What's he/she like?（他/她是什么样的人？）- He/She is kind/funny/strict...（他/她是和蔼的/滑稽的/严格的……）2. 谈论星期与课程安排。
英语基础训练高一参考答案
英语基础训练高一参考答案一、词汇与语法1. 根据题目所给的单词，选择正确的形式填空。
- The weather is very hot in summer in this region.- She is interested in music and often plays the guitar.2. 根据上下文，选择正确的词组填空。
- After finishing his homework, he went on to read a novel. - She looked forward to meeting her old friends at the reunion.3. 根据句子结构，选择正确的语法形式。
- If I were you, I would take the job offer.- He has never been to the Great Wall, but he wants to go.4. 选择正确的词性转换形式填空。
- The teaching of English is her profession.- She is a talented singer, known for her beautiful voice.5. 根据语境，选择正确的时态填空。
- I have been studying English for three years.- He will be arriving at the airport in an hour.二、阅读理解1. 根据文章内容，选择正确的答案。
- What is the main topic of the passage? A. The importanceof learning English. B. The history of English. C. Thebenefits of traveling abroad.2. 根据细节信息，选择正确的答案。
英语基础训练九年级全一册答案
英语基础训练九年级全一册答案第一单元一、单项选择1. B2. D3. A4. A5. B6. C7. D8. C9. C 10. B11. C 12. B 13. D 14. A 15. A 16. D 17. B 18. C 19. D 20. A二、完形填空1. C2. B3. A4. D5. B6. C7. D8. A9. A 10. C三、阅读理解1. B2. C3. A4. D5. C第二单元一、单项选择1. B2. D3. A4. C5. A6. B7. D8. C9. A 10. B11. B 12. C 13. D 14. A 15. C 16. D 17. B 18. A 19. C 20. B二、完形填空1. D2. B3. C4. A5. B6. C7. C8. D9. A 10. D三、阅读理解1. A2. B3. D4. C5. B第三单元一、单项选择1. C2. A3. B4. D5. C6. A7. B8. D9. C 10. A11. B 12. D 13. C 14. A 15. C 16. D 17. B 18. A 19. D 20. C二、完形填空1. B2. C3. D4. A5. B6. C7. D8. A9. D 10. C三、阅读理解1. B2. C3. D4. A5. C第四单元一、单项选择1. D2. B3. D4. C5. A6. B7. D8. C9. D 10. B11. C 12. B 13. A 14. D 15. B 16. C 17. A 18. D 19. C 20. A二、完形填空1. B2. A3. D4. C5. A6. C7. D8. B9. A 10. B三、阅读理解1. B2. A3. C4. D5. B第五单元一、单项选择1. B2. D3. A4. A5. C6. D7. A8. C9. D 10. B11. B 12. C 13. D 14. A 15. C 16. A 17. D 18. C 19. B 20. A二、完形填空1. B2. C3. A4. D5. B6. C7. D8. A9. B 10. D三、阅读理解1. C2. A3. D4. B5. D第六单元一、单项选择1. A2. B3. C4. D5. C6. B7. A8. A9. C 10. C11. B 12. D 13. A 14. B 15. D 16. B 17. A 18. B 19. D 20. C二、完形填空1. C2. B3. D4. C5. A6. D7. B8. D9. A 10. C三、阅读理解1. D2. C3. A4. B5. C第七单元一、单项选择1. A2. C3. B4. D5. A6. D7. B8. D9. A 10. C11. C 12. B 13. A 14. B 15. A 16. D 17. C 18. D 19. B 20. A二、完形填空1. D2. B3. A4. C5. D6. B7. C8. A9. A 10. B三、阅读理解1. A2. C3. D4. B5. A第八单元一、单项选择1. B2. C3. B4. D5. C6. B7. A8. C9. A 10. D11. B 12. D 13. C 14. A 15. D 16. A 17. C 18. B 19. D 20. C二、完形填空1. D2. B3. A4. C5. A6. B7. D8. B9. D 10. C三、阅读理解1. A2. D3. C4. B5. A第九单元一、单项选择1. C2. A3. C4. B5. D6. C7. B8. A9. D 10. B11. C 12. A 13. D 14. B 15. C 16. A 17. D 18. D 19. A 20. C二、完形填空1. C2. D3. A4. B5. C6. A7. D8. B9. D 10. A三、阅读理解1. B2. D3. C4. A5. B以上是英语基础训练九年级全一册的答案。
2024年人教版六年级上册英语第七单元课后基础训练(含答案和概念)
2024年人教版六年级上册英语第七单元课后基础训练（含答案和概念）试题部分一、选择题：1. In Unit 7, which word means "happy" in English?A. SadB. HappyC. AngryD. Tired2. Which sentence is correct in English?A. I am go to the park.B. I am going to the park.C. I goes to the park.D. I am going at the park.3. What is the opposite of "hot"?A. ColdB. WarmC. CoolD. HotterA. happyB. sadC. tiredD. angry5. Which word is a noun?A. RunB. JumpC. BookD. Eat6. What is the past tense of "go"?A. GoedB. GoneC. WentD. Going7. Which of the following is an adjective?A. RunB. FastC. EatD. Sleep8. Translate the following Chinese word into English: "大"A. BigB. SmallC. TallD. Short9. Which sentence is in the future tense?A. I am eating an apple.B. I will eat an apple.C. I eat an apple.D. I have eaten an apple.10. What is the plural form of "child"?A. ChildsB. ChildrenC. ChildD. Childes二、判断题：1. "I am happy" and "I am sad" have the same meaning. ( )2. "She is reading a book" is in the past tense. ( )3. "He goes to school bus" is a correct sentence. ( )4. "I like apples" means "I like apple". ( )5. "They are playing football" is in the present continuous tense. ( )6. "I am going to the cinema" and "I will go to the cinema" have the same meaning. ( )7. "She is a teacher" is a sentence with a noun as the subject. ( )8. "The sun is shining" is a sentence in the past tense. ( )9. "I have two brothers" means "I have two sister". ( )10. "He can swim" and "He swims" have the same meaning. ( )三、填空题：1. The opposite of "expensive" is ________.2. "I ________ a book yesterday" is the correct sentence to describe a past action.3. The plural form of "mouse" is ________.4. "She ________ to the store every weekend" is a sentence in the present simple tense.5. "He is ________ because his team won the game" is a correct sentence.6. "My birthday is in ________" is how you would say your birthday is in the month of June.7. "I ________ to the park" is how you would say you goto the park with someone.8. "The cat is ________ on the bed" is a correct sentence.9. "We are ________ a movie tonight" is a sentence abouta future plan.10. "They ________ their homework every day" is a sentence about a routine.11. "She ________ her hair every morning" is a correct sentence.12. "The dog ________ very loud" is how you woulddescribe a noisy dog.13. "I ________ my phone at home" is how you would say you forgot your phone.14. "He ________ the cake in the kitchen" is a correct sentence.15. "We ________ to the beach last summer" is a sentence about a past event.16. "She ________ a new dress for the party" is a correct sentence.17. "They ________ to the zoo yesterday" is a sentence about a past trip.18. "I ________ a lot of books" is how you would say you have many books.19. "The sun ________ in the sky" is a correct sentence.20. "She ________ her teeth before bed" is a sentence about a daily habit.四、简答题：1. What is the difference between "I do" and "I am doing"?2. How do you form the past tense of regular verbs?3. What is the difference between "a" and "an"?4. Explain how to use "there is" and "there are" correctly.5. What is the past participle of "go"?6. How do you make a sentence negative in present simple tense?7. What is the plural form of "child"?8. How do you ask a question in present continuous tense?9. What is the opposite of "hot"?10. Write a sentence using the future tense with "going to".一、选择题答案：1. B2. B3. A4. A5. C6. C7. B8. A9. B10. B二、判断题答案：1. ×2. ×3. √4. ×5. √6. √7. √8. ×9. ×10. ×三、填空题答案：1. cheap2. read3. mice4. goes5. happy6. June7. go8. lying9. watching10. do11. brushes12. barks13. left14. baked15. went16. bought17. went18. have19. shines20. brushes四、简答题答案：1. "I do" is present simple tense, while "I am doing" is present continuous tense.2. Regular verbs form the past tense adding ed to the base form.3. "A" is used before words that begin with a consonant sound, while "an" is used before words that begin with a vowel sound.4. "There is" is used for singular countable nouns and uncountable nouns, while "there are" is used for plural countable nouns.5. The past participle of "go" is "gone".6. To make a sentence negative in present simple tense, add "do not" or "does not" before the verb.7. The plural form of "child" is "children".8. To ask a question in present continuous tense, use "am/is/are" followed the subject and the present participle of the verb.9. The opposite of "hot" is "cold".10. "I am going to visit my grandparents next week."Tense and Aspect: The practice questions cover various tenses such as present simple, present continuous, past simple, and future with "going to", as well as the aspect of perfect tense.Nouns: Questions address plural forms of nouns, including irregular plural forms and the use of articles "a" and "an".Adjectives: The use of adjectives to describe nouns is tested.Verb Conjugation: Correct conjugation of verbs in different tenses and aspects is required.Pronouns: The use of pronouns in different contexts is included.Adverbs: The placement and use of adverbs in sentences is practiced.Question Formation: The formation of questions in different tenses is tested.Negative Sentences: The correct formation of negative sentences in the present simple tense is included.各题型知识点详解和示例：选择题： Test students' understanding of vocabulary, grammar rules, and sentence structure. For example, Question 1 tests the student's knowledge of antonyms.判断题： Assess students' ability to recognize correct and incorrect sentence structures and grammar usage. For example, Question 2 tests the student's understanding of verb tense.填空题： Require students to apply their knowledge of vocabulary, grammar, and sentence construction. For example, Question 1 requires knowledge of antonyms.简答题： Evaluate students' ability to explain grammatical concepts and rules. For example, Question 1 teststhe student's understanding of the difference between simple and continuous tenses.试题部分一、选择题：1. In Unit 7, which word means "weather" in English?A. SunnyB. WeatherC. CloudyD. Rainy2. What is the opposite of "hot"?A. ColdB. WarmC. CoolD. Hotter3. Which of the following sentences is correct?A. It's snowing, let's go outside.B. It's raining, let's play football.C. It's sunny, let's stay at home.D. It's windy, let's have a picnic.4. Which season is it now in China?A. SpringB. SummerC. AutumnD. Winter5. What should you wear when it's cold?A. Shorts and TshirtB. Sweater and scarfC. Skirt and sandalsD. Cap and sunglasses6. Which of the following is not a weatherrelated activity?A. Making snowmenB. Flying kitesC. Going swimmingD. Reading a book7. What is the weather like in Beijing in winter?A. Hot and sunnyB. Cold and snowyC. Warm and rainyD. Cool and windy8. Which word is not a type of weather?A. SunnyB. WindyC. HappyD. Rainy9. Which of the following sentences is NOT about weather?A. The sun is shining brightly.B. The leaves are falling down.C. The wind is blowing hard.D. The rain is pouring down.10. What is the best way to describe "fog"?A. A thick cloud on the groundB. A light rainC. A strong windD. A bright sun二、判断题：1. "It's raining cats and dogs." means it's raining very hard. ( )2. "It's a nice day." always means the weather is sunny. ( )3. "Sunny" and "rainy" are both types of weather. ( )4. In winter, it never snows in some parts of China. ( )5. You can wear shorts and Tshirt when it's cold outside. ( )6. "It's windy." means the wind is blowing gently. ( )7. "It's snowing." is a sentence about the weather. ( )8. "It's hot and sunny." is the same as "It's sunny and hot." ( )9. "It's raining." means you should stay indoors. ( )10. "It's cloudy." means the sky is full of stars. ( )三、填空题：1. The opposite of "hot" is ________.2. When it's sunny, we often say, "What a ________ day!"3. In English, "It's raining." can also be said as "It's ________."4. If it's snowy outside, you might need to wear ________ and ________.5. "It's windy." can also be described as "The wind is________."6. When the weather is bad, we might say, "What ________ weather!"7. "It's foggy." means you can't see very well because of the ________.8. "It's cloudy." usually means that the sky is ________ with clouds.9. In spring, the weather is often ________ and ________.10. "It's hailing." means that ________ are falling from the sky.11. "It's drizzling." is a gentle form of ________.12. In summer, it often ________ a lot, making the air very humid.13. "It's stormy." might include ________, ________, and strong winds.14. "It's freezing." is a way to say that it's very________.15. "It's muggy." is a way to describe weather that is both ________ and ________.16. "It's overcast." means that the sky is covered with ________ clouds.17. "It's blustery." is another way to say that the wind is ________.18. "It's sleeting." means that ________ and ________ are falling together.19. "It's pleasant." is a way to describe weather that is ________ and ________.20. "It's bitter cold." is a way to say that the weather is extremely ________.四、简答题：1. Describe what you would wear on a sunny day.2. What activities can you do when it's raining outside?3. How does the weather affect our daily lives?4. What are some ways to protect ourselves from the sun on a hot day?5. Why is it important to check the weather forecast before going out?6. How does the weather change from season to season?8. How can you tell if it's going to be a cold day?9. Why do some people prefer cloudy days over sunny days?10. How does the weather affect the way we feel and behave?一、选择题答案：1. B2. A3. A4. C5. B6. D7. B8. C9. B10. A二、判断题答案：1. √2. ×3. √4. ×5. ×6. ×7. √8. √9. ×10. ×三、填空题答案：1. cold2. nice3. raining4. boots, coat5. blowing6. terrible7. fog8. filled9. warm, sunny10. hail11. rain12. rains13. thunder, lightning14. cold15. hot, humid16. thick17. windy18. rain, snow20. cold四、简答题答案：1. On a sunny day, one might wear a Tshirt, shorts, sunglasses, and a hat.2. When it's raining, activities include reading a book, watching a movie, playing board games, or doing indoor exercises.3. Weather affects our daily lives influencing ourchoice of clothing, activities, and sometimes our mood.4. To protect ourselves from the sun, we can wear sunscreen, a hat, sunglasses, and stay in the shade.5. It's important to check the weather forecast to plan activities, choose appropriate clothing, and for safety reasons.6. Weather changes from season to season with variationsin temperature, precipitation, and daylight hours.7. Signs of an approaching storm include dark clouds, strong winds, lightning, and thunder.8. You can tell it's going to be a cold day checking the weather forecast, feeling a drop in temperature, or seeing frost.9. Some people prefer cloudy days because they are cooler, there's less glare, and it's easier on the eyes.10. Weather affects our feelings and behaviorinfluencing our energy levels, mood, and the activities we choose to engage in.Vocabulary: Understanding and using weatherrelated vocabulary (e.g., sunny, rainy, snowy, windy).Opposites: Recognizing and using antonyms (e.g., hotcold, sunnycloudy).Sentence Structure: Constructing correct sentences to describe weather conditions.Seasons: Identifying and describing weather patterns associated with different seasons.Clothing: Selecting appropriate attire based on weather conditions.Weather Activities: Associating activities with specific weather conditions.Weather Forecast: The importance of checking weather forecasts and their impact on daily planning.Weather Phenomena: Describing various weather phenomena (e.g., storms, fog, hail).各题型所考察学生的知识点详解和示例：选择题： Test students' knowledge of weather vocabulary, sentence structure, and the ability to recognize correct information.Example: Understanding that "It's snowing, let's go outside." is an appropriate sentence for snowy weather.Example: Recognizing that "It's a nice day." does not always mean the weather is sunny, as it can also refer to pleasant weather in general.填空题： Evaluate students' recall of vocabulary and their ability to use words in context.简答题： Measure students' ability to express their understanding of weather concepts in their own words and to apply knowledge to reallife situations.Example: Describing what activities can be done on a rainy day, which tests the application of weatherrelated knowledge to daily life.。
小学一、二年级英语基础训练20题
小学一、二年级英语基础训练20题1. 请看下面的字母，哪个是大写的“A”？（）A. aB. A答案：B解析：大写的“A”是A，小写的是a 。
2. 数字“2”用英语怎么说？（）A. oneB. two答案：B解析：one 是“1”，two 是“2”。
3. 下面哪个字母是小写的“b”？（）A. BB. b答案：B解析：大写是B，小写是b 。
4. 英语中“3”是（）A. threeB. four答案：A解析：four 是“4”，three 是“3”。
5. 找出大写字母“C”（）A. cB. C答案：B解析：小写字母是c ，大写字母是C 。
6. 数字“5”的英语是（）A. fiveB. six答案：A解析：six 是“6”，five 是“5”。
7. 哪个是小写字母“d”？（）A. DB. d答案：B解析：大写是D ，小写是d 。
8. “10”用英语说是（）A. tenB. nine答案：A解析：nine 是“9”，ten 是“10”。
9. 找出小写字母“e”（）A. EB. e答案：B解析：大写是E ，小写是e 。
10. 英语中“8”是（）A. eightB. seven答案：A解析：seven 是“7”，eight 是“8”。
11. 选择题：苹果的英文是（）A. apple B. banana C. orange 答案：A解析：苹果的英文是“apple”，“banana”是香蕉，“orange”是橙子。
12. 填空题：红色的英文是“___”。
答案：red解析：红色对应的英文单词是“red”。
13. 选择题：以下哪个是橙子（）A. pear B. grape C. orange 答案：C解析：“orange”是橙子，“pear”是梨，“grape”是葡萄。
14. 填空题：黄色的英文是“___”。
答案：yellow解析：黄色用英文说是“yellow”。
15. 选择题：香蕉的英文是（）A. apple B. banana C. strawberry答案：B解析：“banana”是香蕉，“apple”是苹果，“strawberry”是草莓。
2024年人教版七年级上册英语第四单元课后基础训练(含答案和概念)
2024年人教版七年级上册英语第四单元课后基础训练（含答案和概念）试题部分一、选择题：1. In this unit, which word means "not happy"?A. sadB. happyC. excitedD. angry2. Which of the following sentences is correct?A. She likes apples, but she doesn't like bananas.B. She likes apples, and she doesn't likes bananas.C. She likes apples, and she doesn't like banana.D. She likes apples, but she don't like bananas.3. What is the opposite of "expensive"?A. cheapB. costlyC. valuableD. priceyA. likesB. likeC. likingD. to like5. Which of the following is a question word?A. becauseB. whyC. howD. both B and C6. What is the past tense of "do"?A. didB. doneC. doesD. doing7. Which word can describe a person who is very tall?A. shortB. tallC. smallD. bigA. tallerB. tallC. tallestD. the tallest9. What is the plural form of "child"?A. childsB. childC. childrenD. childrensA. Can I help you?B. Could I sit here?C. What's your name?D. How old are you?二、判断题：1. "I am liking English very much." is a correct sentence. ( )2. "She is taller than him." is a correct sentence. ( )3. "He doesn't like apples, and she doesn't too." is a correct sentence. ( )4. "They are going to the park yesterday." is a correct sentence. ( )5. "How old are you?" is a question word. ( )6. "I am liking playing football." is a correct sentence. ( )7. "He is the most tallest in our class." is a correct sentence. ( )8. "She can't singing and dancing." is a correct sentence. ( )9. "I am going to the library at 7 o'clock tomorrow morning." is a correct sentence. ( )10. "He is more taller than his brother." is a correct sentence. ( )1. The opposite of "hot" is _______.2. If you want to ask someone "Do you like apples?", in English, you say "_______ apples?"3. "I _______ to the cinema last night." (past tense of "go")4. The plural form of "mouse" is _______.5. "He is _______ (tall/taller) than his father."6. "She _______ (like/likes) playing the piano."7. "They _______ (go/went) to the park yesterday."8. "I _______ (am/is/are) very tired today."9. "My mother is _______ (a/an/the) doctor."10. "_______ (How/What/Where) old are you?"11. "Can you help _______ (I/me)?"12. "She is _______ (a/an) good teacher."13. "I have _______ (a/an) brother and _______ (a/an) sister."14. "_______ (Is/Are) this your book?"15. "They _______ (has/have) two pets."16. "I _______ (do/don't) like coffee."17. "She _______ (can/can't) swim."18. "_______ (Who/What/Where) is that man?"19. "We _______ (are/is) in the same class."20. "He _______ (do/does) his homework every day."1. What is the past tense of "read"?2. How do you ask "What is your name?" in English?3. What is the opposite of "expensive"?4. Write a sentence using "I am" and "you are".5. What is the plural form of "ba"?6. How do you say "Thank you" in English?7. What is the question word for asking "Why?" in English.8. Write a sentence using "He likes" and "but".9. How do you ask for permission in English?10. What is the correct form of "I don't have anybrothers or sisters."?一、选择题答案：1. A2. A3. A4. B5. D6. A7. B8. A9. C10. B二、判断题答案：2. √3. ×4. ×5. ×6. ×7. ×8. ×9. √10. ×三、填空题答案：1. cold2. Do you like3. went4. mice5. taller6. likes7. went8. am9. a10. How11. me12. a13. a, a15. have16. don't17. can't18. Who19. are20. does四、简答题答案：1. read2. What is your name?3. cheap4. I am a student, and you are a teacher.5. babies6. Thank you7. Why8. He likes to play football, but he doesn't like basketball.9. Can I sit here?10. I don't have any brothers or sisters.1. 词性：本题涵盖了名词、动词、形容词等词性的用法，如名词的复数形式（mice），动词的时态（went）和语态（likes），以及形容词的比较级（taller）。
基础训练英语参考答案
基础训练英语参考答案一、词汇与语法练习1. 单选题- (1) A. 选择A，因为根据句子结构，需要一个形容词来修饰名词“opportunity”。
- (2) C. 选择C，因为“although”引导的让步状语从句，表示尽管有困难，我们仍然会尽力。
- (3) B. 选择B，因为“since”表示从某个时间点开始一直持续到现在的动作或状态。
2. 完形填空- (1) D. 根据上下文，这里需要一个表示“尽管”的词，所以选择“although”。
- (2) A. 根据语境，这里需要一个表示“实现”的词，所以选择“achieve”。
- (3) C. 根据句子结构，这里需要一个表示“选择”的词，所以选择“option”。
3. 语法填空- (1) has been built. 根据时间状语“since 2010”，可知使用现在完成时。
- (2) were. 根据上下文，这里描述的是过去发生的事情，所以使用过去时。
- (3) had finished. 根据“by the time you arrived”，可知使用过去完成时。
二、阅读理解1. A- 根据文章第一段，可以得知A选项正确。
2. B- 文章第二段提到了B选项中的信息，因此B是正确答案。
3. C- 根据文章第三段，C选项是对文章内容的正确理解。
4. D- 文章最后一段提到了D选项中的信息，所以D是正确答案。
5. A- 根据整篇文章的主旨，A选项是对文章主题的概括。
三、翻译练习1. 他昨天没有来参加我们的会议。
- He did not attend our meeting yesterday.2. 她已经完成了她的作业。
- She has already finished her homework.3. 他们计划下个月去旅行。
- They plan to travel next month.四、写作练习请根据以下提示写一篇不少于100字的短文。
提示：你的朋友李华最近感到压力很大，因为他即将参加高考。
2024年人教版八年级上册英语第一单元课后基础训练(含答案和概念)
2024年人教版八年级上册英语第一单元课后基础训练（含答案和概念）试题部分一、选择题：1. Which of the following words is an adjective?A. runB. happyC. eatD. studyA. a teacherB. teachersC. teacherD. the teacher3. What is the past tense of "do"?A. didB. doneC. doesD. doing4. Which of the following sentences is in the present continuous tense?A. She eats an apple.B. She is eating an apple.C. She ate an apple.D. She will eat an apple.A. goB. wentC. goesD. going6. What is the opposite of "expensive"?A. cheapB. costlyC. valuableD. worthless7. Which of the following is a question word?A. becauseB. howC. butD. although8. What is the plural form of "child"?A. childsB. childC. childrenD. childesA: "Can you help me with my homework?"B: "________, I'd be happy to."A. Yes, I canB. No, I can'tC. Sure, I canD. I don't know10. Which of the following is a conjunction?A. andB. butC. howeverD. all of the above二、判断题：1. "She goes to school bus." is in the past tense. ( )2. "I am reading a book." is in the present simple tense. ( )3. "They are playing football." is in the past continuous tense. ( )4. "He can swim very fast." is a negative sentence. ( )5. "The sun rises in the east." is an interrogative sentence. ( )6. "This dress is too expensive." means the dress is very cheap. ( )8. "She is a doctor." and "She is doctor." have the same meaning. ( )9. "Who" and "whom" can be used interchangeably in questions. ( )10. "They speak English." is in the present perfect tense. ( )三、填空题：1. The opposite of "hot" is ________.2. "I ________ my homework every day." (present simple tense)3. She ________ (go) to the store yesterday. (past tense)4. They ________ (watch) a movie right now. (present continuous tense)5. My brother is ________ than me. (tall)6. If it ________ (rain) tomorrow, we will stay at home. (present simple tense)7. He ________ (not have) any money. (negative sentence)8. ________ you like to go to the park this weekend? (question word)9. There ________ (be) many cars in the parking lot. (plural noun)10. She ________ (write) a letter to her pen pal last week. (past tense)11. The cat is ________ the table. (preposition)12. "I have ________ brothers." means more than one brother. (plural noun)13. ________ is your favorite color? (question word)14. They ________ (travel) to Japan last year. (past tense)15. She ________ (not finish) her dinner yet. (negative sentence)16. The sun ________ (set) in the west. (present simple tense)17. He is ________ to help you. (adjective)18. ________ you like tea or coffee? (question word)19. They ________ (be) happy to see their friends. (present continuous tense)20. "I ________ (do) my homework after dinner." (future tense)四、简答题：1. What is the difference between "a" and "an"?2. Write a sentence using the past perfect tense.3. Explain the difference between "it's" and "its".4. What is a verb? Give an example.5. How do you form questions in English?6. What is an adverb? Give an example.7. Write a sentence using the future continuous tense.8. What is the difference between "too" and "enough"?9. What is a conjunction? Give an example.10. How do you make a word plural in English?一、选择题答案：1. B2. A3. A4. B5. B6. A7. B8. C9. C10. D二、判断题答案：1. ×2. ×3. ×4. ×5. ×6. ×7. √8. ×9. ×10. ×三、填空题答案：1. cold2. do3. went4. are watching5. taller6. rains7. doesn't have8. Would9. are10. wrote11. under12. two13. What14. traveled15. hasn't finished16. sets17. ready18. Do19. are being20. will do四、简答题答案：1. "A" is used before words that begin with a consonant sound, while "an" is used before words that begin with a vowel sound.2. She had finished her homework before the teacher arrived.3. "It's" is a contraction of "it is" or "it has," while "its" is a possessive pronoun showing ownership.4. A verb is a word that expresses an action or a state of being. Example: "run," "sleep," "is."5. Questions in English are often formed using question words (who, what, where, when, why, how) or inverting the subject and the auxiliary verb.6. An adverb is a word that modifies a verb, an adjective, another adverb, or a sentence. Example: "quickly," "very," "often."7. She will be sleeping when you call her.8. "Too" is used to add extra information, often about an amount, while "enough" is used to indicate that something isas much as required.9. A conjunction is a word used to connect clauses or sentences. Example: "and," "but," "or."10. In English, most nouns form the plural adding s ores to the singular form.Parts of Speech (词性): Identifying adjectives, adverbs, verbs, nouns, and conjunctions.Tenses (时态): Understanding and using present simple, present continuous, past simple, past continuous, and future tenses.Question Formation (疑问句构成): Using question wordsand inversion of subject and auxiliary verb to form questions.Article Usage (冠词使用): Differentiating between "a," "an," and "the."Plural Nouns (名词复数): Forming plurals of regular and irregular nouns.Pronouns and Possessive Adjectives (代词与物主形容词): Distinguishing between "it's" and "its."Negative Sentences (否定句): Forming negative sentences with auxiliaries and not.各题型知识点详解和示例：选择题：测试学生对词性、时态、疑问词、冠词使用等基础知识的掌握。
七年级上册英语基础训练
七年级上册英语基础训练
七年级上册英语基础训练是帮助学生巩固基础知识，提高语言运用能力的重要环节。
下面给大家介绍一些基础训练的方法和技巧。
1. 多听多读多写
语言的学习需要多方面的支持，其中听、读、写三个方面是最基本的。
学生可以通过听英文歌曲、看英文电影、阅读英文小说等方式来提高口语和听力能力；通过阅读英文文章、报纸、杂志等提高阅读能力；通过写作练习，提高写作能力。
2. 核心词汇积累
核心词汇是语言学习的基础，学生需要积累一定量的词汇量，才能更好地理解和运用语言。
可以选择一些常用的词汇进行积累，如数字、时间、颜色、动物、水果等，也可以根据学习内容进行词汇积累。
3. 语法规则掌握
语法是英语学习的重要部分，学生需要掌握基本的语法规则，如时态、语态、句型等。
可以通过练习题和语法教材进行学习和练习。
4. 口语练习
口语是语言学习的重要部分，学生需要不断地练习口语，提高发音和语调。
可以选择一个话题，和同学进行交流，也可以模仿英语口音进行练习。
以上是七年级上册英语基础训练的基本方法和技巧，学生需要坚持不懈地进行练习和学习，才能取得更好的成绩。
- 1 -。
六年级上册英语基础训练试卷
UNIT 1 What did you do this summer ？你今年夏天做了什么？Lesson 11.重点词汇farm农场 strong强壮 museums博物馆 cousins表兄弟2.重点词组went back to Canada回到加拿大 wrote a story写故事 made cakes做蛋糕Peking Opera京剧3.重点句型What did you do this summer？你今年夏天做了什么？I had a great time and did many things.我过得很愉快并且做了很多事情。
Where did you go？你去哪里了？Exercise 1请把每个单词写五遍，并在括号里写一遍汉语意思。
（）（）（）（）Exercise 2 汉英翻译，要求默写。
回到加拿大 ______________ 写故事_____________做蛋糕______________ 京剧_____________Exercise 3 根据汉语意思默写单词农场______________ 强壮 ______________ 博物馆______________ 表兄弟______________Exercise 4 翻译句子1.你今年夏天做了什么？2.我过得很愉快并且做了很多事情。
3.你去哪里了？Lesson 21.重点词汇hours小时 airport飞机场 piano钢琴2.重点词组last Thursday上个星期四 last week上星期 came back回来last Monday morning上星期一早上 went to the airport去了机场finished the piano lessons 完成了钢琴课 summer camp夏令营3.重点句型When did you came back？你什么时候回来的？I came back last Thursday. 我上星期四回来的。
2023年五年级上册英语基础训练
2023年五年级上册英语基础训练
1. 听力和口语：多听英语录音、歌曲、故事等，提高听力理解能力。
尝试模仿英语发音和语调，与同学或老师进行英语口语交流。
2. 词汇和语法：学习课本中的词汇和语法知识，通过背诵、书写、练习题等方式加深记忆。
理解和掌握基本的英语句型和语法规则。
3. 阅读理解：阅读适合年龄的英语故事、短文或教材中的阅读材料，提高阅读理解能力。
学习理解文章主旨、细节和推理。
4. 写作练习：进行简单的英语写作练习，如书写短文、描述图片、回答问题等。
注意语法、拼写和标点的正确使用。
5. 学习习惯：养成良好的学习习惯，定期复习和预习课程内容。
积极参与课堂活动，与老师和同学互动交流。
此外，可以利用各种学习资源，如英语学习网站、学习APP、英语学习资料等，进行更多的练习和拓展。
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第十二章
1.如图所示的用具中,在使用时属于费力杠杆的是（）
2.一根原木放在水平地面上,粗略估计它的质量时,我们视其粗细相同,质量分布均匀,现抬起一端使它稍离地面需要500N的力(g=10N/kg),则原木的质量大约为（）
A 50kg
B 100kg
C 250kg
D 500kg
3.在探究“杠杆平衡条件”实验中,杠杆在拉力F作用下水平平衡,如图所示,现将弹簧测力计绕B点从a位置转动到b位置过程中,杠杆始终保持水平平衡,则拉力F与其力臂的乘积变化情况是（）
A.一直变小
B.一直变大
C.一直不变
D.先变小后变大
4.如图,OA为长2m的轻杆,与固定在竖直墙面上的光滑转轴相连接。
将一重为30N的物体用轻绳拴在OA的中点B处,用垂直于OA的力F拉住轻杆,静止图示位置,则F=＿＿＿N
5.如图所示,轻质杠杆OA可绕O点无摩擦转动,A点处挂一个重20N的物体，B点施加竖直向上的力F,杠杆在水平位置平衡，且OB:BA=2：1则F=＿＿＿N。
它是＿＿＿杠杆
3 4 5
6.某同学设计了一种如图所示的简易电梯,由图可知（）
A.A是动滑轮
B.B是定滑轮
C.如果电动机向下拉动绳子电梯厢将上升
D.电梯厢运动的速度与电动机拉绳的速度相
7.A、B两种实心物体的质量与体积的关系如甲图所示,把体积相等的A、B物体挂在滑轮组下,若要使它们处于静止状态,则在乙图的虚线框内悬挂B物体的个数是(不计摩擦和滑轮的自重)（）
A.1个
B.2个
C.3个
D.4个
8.小谦想把被台风刮倒的树拉正。
他把绳子的一端系在乙树上,然后绕过甲树用力拉绳子,这样做有＿＿＿段绳子拉甲树。
如果不计绳重和摩擦,甲树受300N拉力,则小谦对绳子的拉力至少为＿＿＿N
6 7 8 9
9.高速铁路的输电线,无论冬、夏都绷的直直的以保障列车电极与输电线的良好接触。
如图为输电线的牵引装置。
钢绳通过滑轮组悬挂20个相同的坠砣,每个坠砣质量为25kg,不计滑轮和钢绳自重及摩擦,输电线A端受到的拉力
大小为＿＿＿N 。
若某段时间内坠砣串下降了30cm,则输电线A 端向左移动了＿＿＿cm 。
(g 取10N/kg,不考虑钢绳的热胀冷缩）
10.工人用如图的机械将物体匀速提升到某一高度,若物体的重力与滑轮的重力之比G 物:G 滑轮=9:1,忽略绳重与摩擦的影响,则机械效率为（ ）
A.10%
B.45%
C.80%
D.90%
11.图甲中用力F1水平拉着重为G 的物体在水平路面上匀速移动s 的距离。
图乙中用动滑轮拉着它也在同一路面上匀速移动s 的距离,水平拉力为F2。
使用动滑轮的过程中 （ ）
S F S F W D S F GS C GS W B S F W A 12222.2...-====额有总额外功为机械效率有用功为总功为η
12.如图所示,用相同的滑轮组成甲乙两个滑轮组,分别将同一物体在相同时间内匀速提升相同高度,若不计绳重和摩擦,比较甲、乙两滑轮组,下列说法正确的是（ ）
A.甲的拉力大
B.乙的额外功少
C.甲的拉力功率大
D.乙的机械效率低
10 11 12 13
13.如图所示,沿斜面把质量为12kg 的一个物体匀速拉到最高处,沿斜面向上的拉力F=100N,斜面长2m 、高1m,则其机械效率是＿＿＿%,物体所受摩擦力是＿＿＿N.(取g=10N/kg)
14.用如图甲所示的滑轮组运送货物上楼,每件货物重100N,每次运送的量不定。
图乙记录了在整个过程中滑轮组的机械效率随货物重力增加而变化的图象,则动滑轮重为＿＿＿N;当某次运送3件货物时,绳子的拉力F 是＿＿＿N 。
(不考虑绳重和摩擦)
15. 如图所示,在竖直向上的力F 的作用下,重物A 沿竖直方向匀速上升。
已知A 的重力G=100N,重物A 上升速度为0.2m/s,不计绳与滑轮摩擦以及滑轮重和绳重,则拉力F 的大小和滑轮上升的速度分别为( )
A.50N 0.4m/s
B.50N 0.1m/s
C.200N 0.4m/s
D.200N 0.1m/s
易错知识点2 滑轮组机械效率的有关计算
16. 如图所示,用滑轮组匀速提起重1000N 的物体,使物体上升10m,所用拉力为400N,若绳重和摩擦不计,求:
(1)滑轮组的机械效率;
(2)若用此装置匀速提起1200N 的重物,则拉力为多少N?
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答案
作图巩固练习
1．轻质杆OA的A端挂一重物，在绳子拉力作用下保持静止，请画出图中绳对A点的拉力F1及对应的力臂L1。
2.如图所示是一个简易压水机，其中AOB是杠杆，作出动力F1的力臂。
3.如图所示，请画出杠杆AB在图示位置静止时作用在B点的最小力F及其力臂L．
4.如下图，小明在做俯卧撑时可将他视为一个以脚为支点O的杠杆，如果他的重心在A点，请在图中画出重力G 和支撑力F及支撑力的力臂l。
5.下图为揭开井盖的示意图，O为支点，请在图中画出拉力F的力臂L．
6.如图所示，一个绕O点转动的杠杆在两个力的作用下水平平衡，已知阻力F2的方向，以及动力F1的力臂，请在图中画出F2的力臂以及动力F1．
7.如图，人用滑轮组提起重物，请用笔画表示绳子，画出滑轮组的绕线．
8.按照要求画出图中所示滑轮组的穿绳情况．（滑轮重和摩擦不计）要求F=G/4。
9．若用滑轮组来平移物体(如图),已知小车重2500N,小车滚动时所受摩擦力是车重的0.1倍,绕滑轮的绳子能承受的最大拉力为100N,试画出图中滑轮组绳子的绕法。
答案。