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北师大教材模块一Unit2Lesson2History Makers听说课

北师大教材模块一Unit2Lesson2History Makers听说课

北师大版教材第一模块Module 1 Unit 2 Heroes Lesson 2 History Makers 听说课教学设计Module 1 Unit 2 HeroesLesson 2 History Makers教材分析本单元分析:本单元为北师大版英语必修模块一Module 1 Unit 2,以话题Heroes—英雄人物为主线,设置了“谈论英雄”的各项任务。

整个单元通过Lesson 1 Modern Heroes, Lesson 2 History Makers, Lesson 3 Sports Stars, Lesson 4 Super Heores 和Culture Corner Space Heroes 从不同的角度向学生介绍各个领域,各个时代的英雄人物,输入相关的话题知识,词汇和功能句。

最后教材要求学生在Communication Workshop和Bulletin Board 口笔头输出自己对英雄人物的描述和对英雄这一概念的理解。

本课分析:本课是北师大版英语必修模块一的第2单元第2课。

本课话题为History Makers, 本课要求学生掌握的技能主要为听说技能。

学生对书中出现的历史人物事先有一定了解,有助于话题的深入。

学生在学习了第一课“Modern Heroes”有关航天英雄杨利伟的阅读文章后,已经了解了一些英雄的特征,建立了一定的“英雄观”,本课将引导学生从创造历史的角度思考英雄人物。

学生在本课还要学习表达“同意”、“不同意”的功能用语以及表达个人观点。

本课按一课时进行:通过图片等相关信息呈现四位历史人物的主要介绍,导入本课主题,学生在教师指导下从听力材料中提取信息,了解马丁•路德•金等历史人物,同时进行听力策略的训练。

引导学生能够运用听力策略抓住所听语段中的关键词,从中提取细节信息,理解主旨大意。

同时通过引导学生关注表达个人观点的功能用语,使学生能熟练运用这些功能用语来表达个人对英雄观的认识和见解。

高教版中职英语基础模块1第2单元《Transportation》复习课件

高教版中职英语基础模块1第2单元《Transportation》复习课件
Learning by yourselves:
பைடு நூலகம்
Key point:
祈使句
定义:表示请求、命令、劝告、建议、禁止等的句子叫祈使句。祈使句通常省略主语“you”,动词一律用动词原形。祈使句的句末一般用感叹号或句号。
(1)用于表达命令、请求、劝告、警告、禁止等的句子叫做祈使句。 Wash your hands.(去洗你的手。—命令) Be quiet,please.(Please be quiet.) (请安静。—请求)
(3)有时在口语中为了表达简洁 ,直接用名词引起一个祈使句。One moment, please . 请等一会。 Hands up ! 举起手来。
(4)有的祈使句中出现称呼语,目的是为了向谁提出请求或命令。Tom,listen to me.汤姆,听我说。Please take a seat , Mr. reen.格林先生,请坐。
肯定祈使句的结构如下:1、Do sth ,(please).2、(Please) do sth.否定祈使句的结构如下:Don't do sth.注意:应答祈使句时要用将来时。 Yes,I will. 祈使句不管是肯定还是否定,反意疑问句都可以用will you
巧记
祈使句王国护卫队PV-B-L-N-D
复习课
Unit 2Transportation
Learning objectives:
复习重点单词、短语及祈使句用法。
熟练掌握和运用祈使句。
培养学生的复习意识,巩固已学知识。
1.notice 2.jogging 3.introduction 4.strict5.especially 6.convenient 7. jog 8.introduce9. energetic 10.be strict with11.get off 12.rush hour 13.get to 14.be worried about 15.You had better do sth 16.express 17.direction 18.change19.expression 20.direct

牛津高中英语模块一UNIT2教材答案

牛津高中英语模块一UNIT2教材答案

牛津高中英语模块一UNIT2教材答案篇一:牛津高中英语模块一Unit2 练习和检测试题与答案牛津高中英语模块一Unit2 练习和检测试题与答案一、单项选择1. ______ two exams to worry about, I have to work really hard this weekend.A. WithB. BesidesC. As forD. Because of2. ______John has arrived, we can begin.A. IfB. As soon asC. Now thatD. Now this3. The students shared their experiences through their website, in the hopemore teenagers would help pass down their local culture.A. whichB. thatC. whereD. as4.He’s got himself into a dangerous situation________ he is likely to lose control over the plane.A. whereB. whichC. whileD why5.Nobody noticed the thief slip into the house because the lights happened to _______.A. be put up.B. give inC. be turned onD. go out6 .We asked teacher to explain _________.A. us the word.B. us of the word.C. the word to us.D. the word for us.7.The children were left __________ of a neighbor when they went on holiday.A. in chargeB. in the chargeC. under chargeD. at charge.8.. ----He has turned on all the lights in thebuildin g. That’s waste of electricity.---- It’s not his____. He just did what he was told to.A. mistake.B. wrongC. faultD.shorting.9. The teacher came in, ________ by some students.A. followedB. followingC. was followedD. to follow10. Don’t punish him again. ________, he is only a small child.A. After allB. In allC. First of allD. Above all11.★I have two bikes; _______ are broken.A. all of themB. both of themC. all of whichD. both of which12. We need water and air, _________ we can’t live.A. with whichB. with whomC. without which D without whom13. The reason ____ he explained was ______ he was ill and unable to go to school.A. why; thatB. why; becauseC. which; becauseD. which; that14.★ Premier Wen Jiabao said the suggestions on improving the quality of milk industry are supposed to careful consideration.A. determineB. decideC. deserveD. desire15.★ difficulties we may e across, we’ll help oneanother to overe them.A. WhereverB. WheneverC. HoweverD.Whatever二、完型填空★Are you a man or a mouse? When people ask this question they want to know 16 you think you are a 17 person or a coward(懦夫). But you will never really know the answer to this question 18 you are tested in real life. Some people19 they are brave but when they e face to face with real 20 , they act like cowards. Others think of themselves as cowards, but when they meet danger, they act like 21.Lenny had always thought of himself as a 22 person. He got worried before examinations. He worried about his job and his health. All he wanted in life was to be safe and healthy. 23 , on January 15th, 2002, a plane crashed into the Potomac River in Washington. Lenny went to the river to see what was happening. He saw a woman in the 24 water. Lenny did not feel afraid. He kept very 25 and did a very courageous thing. He jumped into Potomac, 26 to the woman, and kept her head 27 the water. Seventy-eight people died that day. Thanks to Lenny, it was not 28 . When you are in a very 29 situation and feel afraid, the bodyautomatically(自动地)produces a chemical in the blood. This chemical is called adrenalin(肾上激素). 30 adrenalin in the blood system, you actually feel stronger and stronger and are 31 to fight or run away. However, when you are absolutely terrified, the body can produce too much adrenalin. When this 32 the muscles bee very hard and you find you 33 move at all. You are paralyzed(使无能为力) with fear. This is 34 when we are very frightened, we sometimes say we are ‘petrified’, this word es from a Greek word‘petros’, which means ‘stone’. We are 35 frightened that we bee stonelike.16. A. howB. neitherC. whether D. either17. A. braveB. realC. hard D. certain18. A. whenB. untilC. after D. once19. A. realize B. findC. think D. agree20. A. lifeB. question C. mouse D. danger21. A. soldiers B. miceC. heroes(英雄)D. cowards22. A. useful B. braveC. nervous D. terrible23. A. SoB. ThereforeC. ThenD. Actually24. A. freshB. poisonous C. warm D. ice-cold25. A. nervous B. calmC. frightened D. excited26. A. wentB. helpedC. spoke D. swam27. A. inB. underC. above D. from28. A. an accident B. a mistake C. seventy-eightD. seventy-nine29. A. dangerous B. fortable C. different D.favorable30. A. WithB. Without C. For D. Like31. A. afraidB. unableC. ready D. anxious32. A. getsB. disappears C. happens D. goes33. A. needn’t B. can’tC. mustn’t D. shouldn’t34. A. where B. howC. because D. why35. A. reallyB. veryC. such D. so三、阅读理解(A)Six people were traveling in a partment (包厢) on a train. Five of them were quiet and well behaved(举止文明), but the sixth was a rude young man who was causing a lot of trouble to the other passengers.At last this young man got out of the station with his two heavy bags. None of the other passengers helped him, but one of them waited until the rude young man was very far away, and then opened the window to him, “ You left something behind in the partment!” Then he closed the window again.The young man turned around and hurried back with his two bags. He was very tired when he arrived, but he shouted through the window, “ What did I leave behind?”As the train began to move again, the passenger who had called him back opened the window and said, “ A very bad impression!”36. Of the six passengers in the partment ___.A. five of them were rude and badly behavedB. one of them was rude and badly behavedC. five were always causing trouble on the trainD. only one was quiet and well behaved37. When the rude young man got off the train ___.A. he left his two bags behindB. he was thrown out through the windowC. the other five pas sengers didn’t help himD. one of the other passengers opened the window for him38. The young man hurried back because ___.A. he found he had left something on the trainB. he found he had left his bags on the trainC. he heard a passenger calling him by his nameD. he heard a passenger shouting to him that he hadleft something behind39. The passenger who had called him back wantedA. to punish him for his bad behaviorB. to have a word with him about his behaviorC. to help him with his behaviorD. to return him the things he had left on the train(B)A thief entered the bedroom of the 30th President of the United States, who met him and helped himescape punishment.The event happened in the early morning hours in oneof the first days when Calvin Coolidge came into power, late in August, 1923. He and his family were living in the same third-floor suite(套房) at the Willard Hotelin Washington that had occupied several years before. The former President’s wife was still living in the White House.Coolidge awoke to see a stranger go through his clothes, remove a wallet and a watch chain.Coolidge spoke, “ I wish you wouldn’t take that.”The thief, gaining his voice, said, “ Why?”“ I don’t mean the watch and chain, only thecharm(表坠). Take it near the window and read what is impressed on its back,” the president said.The thief read, “ Presented to Calvin Coolidge.”“ Are you President Coolidge?” he asked.The president answered, “ Yes, and the House of Representatives(众议院)gave me the watch charm. I’m fond of it. It would do you no good. You want money. Let’s talk this over.”Holding up the wallet, the young man said in a low voice, “ I’ll take this and leave everything else.”Coolidge, knowing there was 80 dollars in it, persuaded the young man to sit down and talk. He told the President he and his college roommate had overspent during their holiday and did not have enough money to pay their hotel bill.Coolidge added up the roommate and two rail tickets back to the college. Then he counted out 32 dollars and said it was a loan(借款).He then told the young man, “ There is a guard in the corridor.” The young man nodded and left through the same window as he had entered.40. What caused the thief to meet the PresidentA. He knew the president had lots of money.B. He knew the president lived in the suite.C. He wanted to be a rich businessman.D. He wanted to steal some money.41. Why did Calvin Coolidge live at the Willard Hotel in those days?A. Because the former president was still in the White House.B. Becaus e the former First Lady hadn’t left the White House.C. Because the First lady liked to live there.D. Because he liked there.42. Coolidge counted out 32 dollars______.A. in order not to be killed by the thiefB. in order to be out of dangerC. so as to help the young student overe his difficulty.D. because he had no more money.43. The young man’s roommate went back to college_____.A. by airB. by waterC. by busD. by train44. Which of the following might happen afterwards?A. The young man repaid the 32 dollars.B. The thief was put into prison.C. The President told many reporters the thief’s name.D. The President ordered the young man to repay the money.四、单词拼写45.How much did the bookstore owner c_______ you?46. Teaching the children with disabilities is ac______________ job.47.The only_________________(解释) for his behavior is that he’s mad.48. No one can go u________________ if he breaks the law.49.I _____________(真诚地)hope that you will be successful next time.50. This tool is ______________(贵重的)for doing electrical repairs.51.Students are f___________ to smoke in school.52. He ____________(后悔)that he had been careless.53. Where are you planning to spend your v__________ next summer..54.They are having a heated a_________(争论) over whether smoking is badfor the health.篇二:牛津高中英语模块1Unit_2_基础知识训练模块1Unit 2 基础知识训练(一)单项填空:1. ---- Where is Frank?---- He is ______ his car painted in the garage.A. takingB. doingC. havingD. giving2. ---- If you like I can do some shopping for you.---- That’s a very kind ________.A. offerB. serviceC. pointD. suggestion3. ---- I feel like ________ for a walk. Will you go with me?---- If Mary goes, _________.A. to go; I alsoB. to go; so do IC. going; so will ID. going; so do I4. ---- Who to ld you about Dad’s illness?---- The doctor in _________.A. connectionB. turnC. publicD. charge5. We insisted that the sick children ________ to hospital at once.A. must be sentB. be sentC. will be sentD. is sent6. Does this meal cost $50? I __________ something far better than this!A. preferB. expectC. suggestD. suppose7. Mary wanted to travel around the world all by herself, but her parents did not ________ her todo so.A. forbidB. allowC. followD. ask8. _________ you’ve got a chance, you might as well make full use of it.A. Now thatB. AfterC. AlthoughD. As soon as9. You are not _______ to take the newspapers and magazines out of the reading room.A. hopedB. imaginedC. supposedD. wished10. Mr. Lee suggested _______ to there instead of________ by bus.A. cycling; goingB. cycling; goC. to cycle; goingD. cycle; go(二)单词拼写:1. Can you take out the ___________ when you go off to work? (垃圾)2. Such ____________ is unacceptable in public. (行为)3. Various ______________ for these changes in climate have been offered by scientists all overthe world. (解释)4. In the final ______________, Harry expressed his love to Julia. (场景)5. Teachers in this school are given plete _______ in their choice of teaching materials. (自由)6. I think we all learned a _____________ lesson today. (宝贵的)7. After a brief __________ of silence, the students started their discussion. (时期、时段)8. She drew back the _________ to let in the light,and then sat down to enjoy a cup of tea. (窗帘)9. Students at our school generally have the highest test __________ in the city. (分数)10. In this country, women are ______________ to enter the temple. (禁止)(三)词组填空:1. Generally speaking, a lot of successful people_________________ themselves.2. Who do you think will be ______________ the pany when Mr. Luck retires this June?3. With Tom away and Jenny ill, we're going to have to work ________________ to get this taskfinished on time.4. I understand him much better ______________ I’ve seen his living conditions.5. Mike is impossible! He treated me _______________ I was a plete stranger!6. I’m sorry, but you ________________ hand in your paper last Monday.1. I had a very bad day at the office, so tonight I don’t __________________ doing anything.2. We went to bed, but Julie and Kate____________________ talking and playing cards.3. She ______________ following me all the way here, though I told her not to.4. Be careful not to ______________ those papers on the desk.5. What shall we _____________ the dog if we go off on vacation?6. Suddenly all the lights ______________ and it was pitch dark.(四)综合填空:1. ---- What’s up, honey? You don’t look happy.---- Sorry, nothing serious. I just had an a______________ with my boss this afternoon.2. ---- Why didn’t you hand in your home work, Jeffery?---- I’m sorry, sir. But it’s not myf___________. My dog ate it. 3. ---- Copy the text ten times! Every one of you! ---- But sir, it's unfair to p___________ a whole class for the actions of one or two students.4. ---- I give up! Physics is simply driving mec__________!---- Why don’t you ask your teacher for help?5. ---- What’s wrong with Bob these days?---- I think he is still u__________ that we forgot his birthday.6. ---- How are you paying? By credit card?---- No, in c__________.7. ---- Are you close to your parents?---- Yes. I have a good r____________ with them.8. ---- We still have a s_________ ticket fortonight’s game.---- Then can I go with you?9. ---- May I speak to Dr. Henderson please?---- I’m sorry, but Dr. Henderso n is away onv__________.10. ---- What a m___________! Can’t you clean up a bit?---- Sorry. I’m too busy with my exam this week.(五)短文填空:the brothers had to take Spot to the vet. They spent a whole day with the dog so they did not have time to clean the house.模块1 Unit 2KEYS(一)单项填空:1-5: CACDB 6-10: BBACA(二)单词拼写:1. garbage2. behaviour6. valuable7. period(三)词组填空:A1. are hard on2. in charge of6. were supposed toB1. feel like2. stayed up6. went out(四)综合填空:1. argument2. fault6. cash7. relationship(五)短文填空:1. vacation2. charge6. upset7. trust 3. explanations8. curtains 3. like crazy 3. insisted on 3. punish8. spare3. surprise 8. explain4. scene9. scores4. now that 4. mix up4. crazy9. vacation 4. mess9. rude5. freedom 10. forbidden 5. as though 5. do with 5. upset 10. mess 5. mad/angry 10. hard篇三:牛津高中英语模块一Unit_2_Home_aloneHome aloneAct oneMom and Dad arrive back from vacation a day is dark when Mom and Dad Dad: It’s so nice to be home!Mom: Yes, I Suddenly a door opens and a soccer ball walking very slowly.Eric: Mom! Dad! You’re back early! (looking around room, sounding e home until tomorrow!The dog slowly walks to Mom and Dad.Mom: (Bending to touch dog) Eric, he’s so tired and hungry! (looking at table) The money for dog food , but Spot looks like he is ! What did you Dad: And look at this room— garbage all over the place! Where is your brother? (shouting angrily) Daniel! Daniel: (running into room) Mom, Dad, I canDad opens the curtains and light es into the room. The room is, with pizza boxes on the floor and dirty dishes in the sink. In the corner, there is a garbage canpaper.Mom and Dad both turn towards Daniel.Dad: (sounding very angry) listen to me, young man----we an I don’t know the reason Mom: Daniel, we thought you were an adult, a person ...Dad: How can we trust you any more? We won’t such behavior in our family!Daniel: ( shouting) Stop me. I’m still a! Why is everything always my Daniel runs into his bedroom and the door angrily. Mom and Dad look at.Act two, scene oneDaniel and Eric’s bedroom. Eric sits and looksDaniel: They never even myself. I hate them!Eric: You don’t hate them. I can tell them we had . Then they won’t be madDaniel: No, don’t tell them anything. Anyhow they didn’t me. They don’t. Let them th ink what they want.Eric: But Daniel, if they knew that Spot was sick and we used the money to him to the Daniel: And that we spent all of yesterdayhouse --- but no, Eric, why didn’t they ask me what happenedAct two, scene twoMom: Do you think we were Daniel? Perhaps there is a why the house is a mess…Dad: Maybe, but he has been sohim or he won’t Mom: Oh, why does this have to be so?End of act two.Project ---Growing pains。

(知识点)模块1第2单元第6讲 英国的制度创新含解析

(知识点)模块1第2单元第6讲 英国的制度创新含解析

第6讲英国的制度创新一、确立——《权利法案》的颁布1.背景(1)历史渊源:13世纪初,《大宪章》签署,以后逐渐形成了限制王权的议会制度。

(2)经济基础:英国资本主义经济迅速发展。

(3)阶级基础:英国资产阶级和新贵族日益强大。

(4)政治前提:从1640年开始,英国资产阶级和新贵族与国王展开激烈斗争,最终通过1688年的“光荣革命”,推翻了斯图亚特王朝的统治。

2.标志1689年颁布的《权利法案》确立了议会主权,国王的权力受到限制。

3.影响(1)英国统治方式从人治转向法治。

(2)英国社会从此进入了长期稳定发展的时期。

二、责任内阁制的形成与发展1.形成(1)“光荣革命”后,国王逐渐成为“统而不治”的国家元首,内阁承担实际行政职责。

(2)1721年,罗伯特·沃波尔成为英国历史上第一任内阁首相。

2.原则(1)内阁全体成员对政府事务集体负责,并与首相在政治上共进退。

(2)如果议会通过了对政府的不信任案,内阁就要下台,或者宣布解散议会,重新进行选举。

3.发展19世纪中期,议会选举变成两大政党之间的权力角逐,大选中获胜的多数党上台组阁。

英国内阁的权力不断扩大,被称为议会中的“第三院”,那么英国是否还是以议会为中心的代议制国家呢?提示:内阁权力虽然不断扩大,但内阁首相还是由议会产生,对议会负责,受议会监督。

内阁权力扩大适应了经济高速发展、政府职能不断扩大的趋势,但英国以议会为中心的原则没有改变。

三、君主立宪制的特点与完善1.特点(1)英国的君主立宪制以代议制为基础,以责任内阁制为核心。

(2)英国国王是礼仪性的国家元首,首相实际上是国家最高行政首长。

(3)内阁名义上对国王负责,实际上是对议会负责。

(4)首相掌握行政权和立法创议权,是国家政治生活的最高决策者和领导者。

2.完善:1832年议会改革(1)背景:随着工业革命深入发展,新兴工业资产阶级力量迅速壮大。

(2)内容:通过1832年议会改革法案,工业资产阶级取得更多席位。

外研 五上英语 一、二模块练习题

外研 五上英语 一、二模块练习题

五年级英语Module1-2练习题一、写出下列动词的过去式形式。

do---__________ meet---__________ drop---__________ buy---___________ go---__________ come---__________ have---__________ run---___________ is--- __________ visit--- __________ lose---__________ eat---___________二、选择合适的词填空。

1. Did you_____________ (go/went) home yesterday?2. Did you_____________ (watch/watched) TV last night?3. Did you_____________ (do/did) your homework last Saturday?4. Did you_____________ (visit/visited) your grandparents last Sunday?5. Did you ____________ (see/saw) an apple on the table?三、选择合适的词填空。

---- At the supermarket.2. My father went to Shanghai__________ plane yesterday.3. These presents are____________ you. Please take them to your home.4. Lily is _____________ England. She wants to make friends in China.5. They live ___________ Beijing.6. ----____________ did you eat last night?---- Rice and fish.7. I often play football__________ my friends after school.四、根据句意用括号内所给单词的适当形式填空。

2020安徽中考历史考前必刷题-第1部分 模块2 主题1 中国开始沦为半殖民地半封建社会

2020安徽中考历史考前必刷题-第1部分 模块2 主题1 中国开始沦为半殖民地半封建社会
两次鸦片战争
1.[2016 安徽,2 题,2 分]法国上尉巴特雷写信给雨果,要雨果歌颂
他们。他认为,“这次远征行动干得体面而漂亮,是法兰西和英格兰共享之
荣耀。”雨果却严厉地谴责了他们的行径。“他们的行径”是( B )
A.发动鸦片战争
B.火烧圆明园
C.割占中国大片领土
D.对华倾销商品
2.[2014安徽,15题(1)(2),3分]阅读材料,结合所学知识回答问题。 材料一 道光、咸丰年间的人没有领受军事失败的教训,战后与战前 完全一样,麻木不仁,妄自尊大。直到咸丰末年,英、法联军攻进了北 京,然后有少数人觉悟了,知道非学西洋不可。
口货物税率(关税)变化的主要原因是( C )
A.清朝实行闭关锁国政策 B.中国手工业纺织技术较弱 C.中英《南京条约》的签订 D.英国机器棉纺织业发达
4.[2012 安徽,3 题,2 分]“最讽刺的是,作为这场战争之直接起因的
鸦片在这项条约中竟然只字未提。”“这项条约”是指( A )
A.《南京条约》
【解析】 材料反映了1843年前后中英进出口货物税率大幅度降低。 《南京条约》规定,英商进出口货物应纳税款,必须经过中英双方协议。 由此导致材料所示现象。
3.(株洲)“英国发动鸦片战争的主要目的是要除去中国设在经商道路上 的无数障碍。”下列《南京条约》及其附件的哪项内容最能体现英国这一意
图( B )
——摘自蒋廷黻《中国近代史》 (1)“军事失败”指什么具体事件?(1分) 答:鸦片战争中国战败。
材料二 在中国社会缓慢地发生变化的同时,出现了《海国图志》 《瀛寰志略》等著作……可惜的是,在当时,对这两部意在醒世的著作予 以最大注意的,不是中国人,而是日本人。日本社会因炮声震撼而惊醒, 中国社会却在炮声沉寂后又昏昏睡去……

牛津译林版高中英语必修一高一英语模块一Unit1-2基础检测.doc

牛津译林版高中英语必修一高一英语模块一Unit1-2基础检测.doc

高中英语学习材料***鼎尚图文理制作***高一英语模块一Unit1-2基础检测I.Word checkpoints1.After leaving his son in c_________ of the shop, he hurried off.2.----What makes him so u________? ---- Losing the key to the classroom.3.His parents never let bad b_____ go unpunished, so the boy is loved by everyone4.It’s your own f______ to choose this kind of shoes, which are poorly made.5.Children and a________ have equal rights to express their own opinions.6.The man was lying on the beach, with his hands c_________ under his head.7.The bus is s___________ to leave at 5:00, but it hasn’t come yet.8.He s____________ that we should take exercise every day to keep fit.9.That room is a m_____, with waste paper on the floor and fast food boxesunder the bed.10.The only_________________(解释) for his behavior is that he’s mad.11. This tool is ______________(贵重的)for doing electrical repairs.12.Students are f___________ to smoke in school.13.They are having a heated a_________(争论) over whether smoking is bad for the health.II. phrases:1.浪费时间做某事 ____________________2..不再3.强迫某人做_____________________4.应该做---5.如何处理--- _________________________6. 好像_____________7..熄灭___________________________ 8..取代9.对----苛刻_______________________ 10.既然11.想做---- __________________________ 12.有望/被要求做--- _________________13.向某人解释---- _____________________ 16.乱七八糟_______________________ 17.负责---- __________________________ 18. 熬夜_______________19.混合. _______________ 20. 记住_______________21. ________________为某事同某人争论22. _________________对---心烦意乱23. ________________ 坚持要求24. _____________毕竟25. ______________阻止某人做某事26. ________________徒劳27. ________________把---当作----看待28._____________________目前III. 翻译下列句子1.父母度假比预料要早回来一天。

人教版高中体育全一册 《足球模块1-2》课件

人教版高中体育全一册 《足球模块1-2》课件
重难点
重点:踢球部位脚型。
难点:腿部放松及协 调用力。
02
脚内侧踢定位球
返回目录

支撑脚:助跑→脚尖与出球方向一致→距球15厘米→膝
关节微曲。

面平行→大腿带动小腿。

击球:脚跟前顶→脚踝用力绷紧→脚内侧击球后中部。
重点
踢球部位、脚型
难点
腿部的放松及协调用力
返回目录
脚内侧踢定位球
图 解
练 习
03
脚背正面运球
返回目录
脚背正面运球
动作要领:
跑动时身体自然放松,上体稍 前倾,两臂自然摆动,步幅不宜过大。 运球脚提起时,膝关节弯屈,脚跟提 起,脚尖朝下,在迈步伸脚着地前, 用脚背正面向前推拨球前进。
返回目录
脚背正面运球
A重难点
重点:运球动作技术 难点:控球能力与协 调性
B易犯错误
✭运球脚触球时松动,难以控制运球力量和 方向 ✭膝、踝关节僵硬、变推拨为捅击,控制不 住球
04
脚背正面停球
返回目录
脚背正面停球
分解

作 要
判断球落点,及时移动到位,脚背 正面上迎下落的球,当球与脚面接触的 一瞬间,接球脚与球同步下撤,此时大
领 腿膝关节、踝关节、脚趾均保持适度的
紧张,脚尖微翘将球接到身体附近。
目录
01 脚 背 正 面 颠 球 02 脚 内 侧 踢 定 位 球 03 脚 背 正 面 运 球 04 脚 背 正 面 停 球 05 脚 背 外 侧 运 球 06 二 过 一 传 切 配 合 07 身 体 素 质 及 考 核
01
脚背正面颠球
返回目录
动作方法:脚向 前上方摆动,用 脚背击球,击球 时踝关节固定, 击球的下部。

(完整版)高教版英语基础模块一1-2单元测试题原创

(完整版)高教版英语基础模块一1-2单元测试题原创

Test for Unit 1-2 (Book one)一.语音题: 5分从下列四个划线音节中找出与其它发音不同的选项:1. A. come B. month C. summer D. postcard2. A. see B. read C. tea D. coffee3. A. game B. class C. half D. France4. A. dear B. wear C. clear D. hear5. A. smoke B. hope C. shop D. Home二.选择题: 10分6. Hello! I ______ your new teacher. May I know your name?A.areB.isC.am7.-I can't stop smoking, doctor.-For your health, I'm afraid you ______.A. canB. can'tC. mustD. mustn't8.I like your class. You _____ a very good teacher.A.isB. areC.am9.-May I take this book out? -No, you___.A. can'tB. may notC. needn'tD. aren't10.We enjoy listening ______ the music.A.onB.inC.to11.Beijing ______ a beautiful city and its people _____ nice and kind.A.is; isB.is; areC.are; is12.He works in a factory. He is _____ engineer.A.aB.anC. /13.She is very busy. There _______ too much work for her.A.isB. areC.am14.Henry ______ to school very early every day.A.goB. wentC. goes15.I’m very glad __________ in the IT Company.A.to get a jobB. get a jobC. gets a job三.完形填空10分My familyI have a happy family. There ___16___ four people in my family.They are my father, my mother, my sister and __17___. My father is a ___18___ ,and he works in a factory. He thinks it’s a boring job. He wants ___19___ a policeman. My mother is a teacher. She works ____20__ a school. She thinks ____21__ job is very interesting. She works hard and often comes back home late.In her___22__time,she likes reading books. My sister is ___23___ . She is about one year old.I am a student. I ___24___ in a school. I like singing. I want to be a __25___ when I grow up.16.A.be B.is C.am D.are17.A.I B.my C.mine D.you18.A.teacher B.doctor C.worker D.driver19.A.be B. is C.being D.to be20.A.in B.on C.to D.of21.A.she B.he C.her D.his22.A.busy B.free C.happy D.working23.A.old B.young C.tall D.big24.A.study B.teach C.play D.work25.A.singer B.swimming C.nurse D.doctor四.阅读理解: 30分ABob’s family in ChinaMy name is Bob I am English. I live in China with my parents. I was born on June 30th, 2005.My hair is yellow; my eyes are blue like the sea. I like going out. Green trees, the blue sky...They are nice.I love flowers very much.Their colors are beautiful. Swimming is my favorite sport. Rivers, the sea... They are very cool.My father is Alfred. He works in a football club. My mother Sally is an English teacher in my school. I have a brother. His name is Simon. He is a student at Sunshine Middle School.He is in Grade8.He is good at all his subjects.He likes playing football. I always run after him when he plays football. I like playing with him.26.How old is Bob?A.SixB. SevenC. NineD. Ten27.What is Bob?A. A football player.B. A worker.C. A student.D. A teacher.28.What color is Bob’s hairA. BlueB. BlackC. WhiteD. Yellow29.What does Bob like?a .playing with Simon b. swimming c. going out d. flying kitesA. a b cB. a b dC. a c dD. b c d30.Which of the following is NOT right?A. Sally teaches young children.B. Alfred works in a football club.C. Simon studies at a middle school.D. Bob always talks with his friends when Simon plays football.BMr. and Mrs. Green have three daughters. They are Sue, Rose and Kitty. Sue is sixteen,Rose is twelve and Kitty is fourteen.Their father,Mr.Green,is a teacher. Their mother, Mrs. Green, is a nurse. They love their three daughters very much.Sue, Rose and Kitty fruit, all like fruit, but they don’t like the same fruit. Sue like apples. Rose likes bananas. Kitty likes oranges.Mr. and Mrs. Green don’t call their real names at home. They call Sue“ Apple”, Rose“Banana”and Kitty“Orange”.The children like their own nicknames very much. Often they call each other’s nicknames too.31.There are ______ people in the family.A.threeB.fourC.fiveD.six32.Mr Green works in a ______.A.schoolB.shopC.bookshopD.hospital33.“Apple” is _____ year old.A. 11B.12C.14D.1634.“Orange” is ______ nickname.A. Sue’sB. Kitty’sC. Rose’sD.Mr Green’s35.Sue does n’ t like______.A.apples or bananasB.oranges or applesC.pears or applesD.bananas or orangesCDo you need friends? I'm sure your answer is "Yes, of course. Everybody does!”You need friends when you play and when you work. If you have friends,you will feel happy. If you have no friends, you will feel lonely (寂寞的). Do you know how to make friends? There is only one good way—you make friends by being friendly. A friendly person is interested in other people.He is always helpful.If you want to make friends with a new classmate, you can talk with him, tell him about the other classmates in your class and try your best to be helpful to him.36. We need friends __________.A. because we must play with themB. Because we must work with themC. when we play and when we workD. when we talk with them37. If we want to make friends, we should __________.A. be politely to themB. be friendly to them.C. be afraid of themD. when we talk with them.38. A friendly person is _________ other people.A. interested inB. worried aboutC. surprised atD. like them39. If we want to make friends with a new classmate, ___________.A. we can talk with themB. we must try to help himC. we can tell him about the other classmates in our classD. A、B and C40. Which of the following is true?A. No one needs friends.B. Everyone needs friends.C. Only classmates need friends.D. Someone needs friends.五.Replace(替换划线部分) :10分A. a lot ofB. give me a rideC. hear from youD. have a good timeE. write back41. I am glad to receive your letter._____________42. Please answer my letter soon._____________43. Can you drive me to the shop on your way home? ________44. The children enjoy themselves in the park. ________45. There are many interesting places to visit in Italy. ________六、完成对话:10分Anne : __________46_____________.May I know your name, please?A. I want to be a cookJohn : John Smith.B. Nice to see youAnne: Oh, Mr. Smith. ____47______. C. We’ll tell you our decision later. John: I’m twenty-two . D. What do you do?Anne:_________48_________. E. How old are you?John: I’m a waiter, but_____49_____.Anne: Thank you. ______50______.七.翻译:20分51.Mary is going to(申请)for a job in IBM.52.公园里有很多大树。

外研版八年级上册英语课文翻译,模块1-2 怎样学英语

外研版八年级上册英语课文翻译,模块1-2 怎样学英语

模块1 怎样学英语模块任务:建立你的英语学习计划1单元让我们尽可能多地说英语听力与词汇1读下面的指导语,在你读懂的指导语后面打勾。

1 按计划学习。

提问与回答问题。

2 检查拼写。

3 听单词,并检查你听到的单词。

4 学说你刚听到的单词。

5 说出你听到单词的(中文)意思。

6 把下面框中的单词连成句子。

2 听题,使用下面黄框中的单词和短语回答听到的问题。

1哪个单词大明没听懂?2 玲玲犯了什么错误?3大明通常怎样检查拼写?4 为什么大明检查cincma 的拼写有困难?3 听与读詹姆斯先生:欢迎大家回来!今天,我们要说说学习英语的好方法。

准备好了吗?谁有建议?玲玲:我们在教室里应该只说英语。

詹姆斯先生:说的好!让我们试着尽可能多地说英语。

大明:把我们犯的错误记在笔记本上不好吗?詹姆斯先生:这是一个好主意。

不要忘记在错题的后边写下正确答案。

还有吗?玲玲:这对每天大声练习新单词拼读和发声是一个好主意。

詹姆斯先生:非常感谢,玲玲。

听收音机如何?大明:是的。

这对我们的发音也有好处。

可就是新单词太多了。

詹姆斯先生:你们不需要理解每一个单词,只需要听那些关键的单词和主要的意思。

大明:阅读也是一样。

英语故事特别有意思。

通过阅读,我能够知道世界上的许多事情。

玲玲:我认为写也很重要。

为什么不找一些英语笔友呢?我们可以写东西给他们。

詹姆斯先生:很好!我赞成。

模块1 怎样学英语2单元你要向她微笑!阅读与词汇1结对学习,与伙伴谈谈你遇到的问题*理解英语* 说英语*学习词汇2 阅读下面的信息,找出学生们有什么问题。

问题和答案发送你的问题给英语博士戴安娜,许多学生求教关于如何提高他们英语的建议。

下面是三个基本问题。

第一个问题是关于理解英语电影和歌曲的问题。

河北的李豪写到:“我喜欢看英语电影和听英语歌曲,但是我不太懂,我该怎么办?”看英语电影和听英语歌曲是学习英语很好的方法!反复看、反复听,猜想生词的意思。

每次你都能学到新东西。

我还建议你跟朋友们谈论你看过的电影和听过的歌曲。

高中英语新高考-教材课文复习讲义:牛津模块1Unit 2单词语篇记忆和讲解(考前复习版)

高中英语新高考-教材课文复习讲义:牛津模块1Unit 2单词语篇记忆和讲解(考前复习版)

高中英语新高考-教材课文复习讲义:牛津模块1Unit 2单词语篇记忆和讲解(考前复习版)一、短文朗诵Adolescence (1)carefully.随同青春期的到来是青少年的生理和心理的变化。

现在,我们迫不及待地去追寻独立和自由。

我们不再和父母聊天,这让他们困惑不安。

我们之间于是经常有冲突。

特别是争吵过后,我们会保持冷漠,坚持我们的要求被满足。

他们最终对我们加以限制。

个人之见,我们应该32. Everyone should be allowed freedom of choice.每个人都应享有自由选择的权利。

33. Local people are worried by the rise in crime.当地人因犯罪活动有所抬头而忧心忡忡。

34. Bad books do more harm to people than bad friends. 壞書比壞朋友害處更大。

35. It is clear that smoking is harmful to health.很明显,抽烟对健康有害。

36. It would be foolish of you to change your mind now. 现在改变主意非常愚蠢。

37. It takes time and patience to photograph wildlife. 拍摄野生动物要肯花时间,要有毅力。

38. It was selfish of him to leave all the work to you. 他把所有的工作都推给你,真是自私。

39. The time we spent together is now a distant memory. 我们一起度过的时光现已成为久远的记忆。

40. I was so annoyed with him for turning up late.他姗姗来迟,我很生气。

41. He is forbidden from leaving the country.他被限制出境。

模块1-2 微生物形态学_真核生物

模块1-2  微生物形态学_真核生物

匍匐菌丝和假根
毛霉目的霉菌 在固体培养基上常 形成延伸的匍匐状 的菌丝,称为匍匐 菌丝。 当匍匐菌丝蔓 延到一定距离后, 在培养基内或附着 于器壁上形成根状 的菌丝,称为假根。 功能是固着、延伸 和吸收营养。
吸器
一些专性寄生真菌从菌丝上分化出来的旁 枝,侵入细胞内分化成指状、球状或丝状,用 以吸收细胞内的营养。
质地比放线菌疏松
外观干燥
不透明
或松或紧的蛛网状、绒毛状、棉絮状 不易挑取 正反面、边缘与中心的颜色不一致
2、霉菌繁殖
孢子囊孢子 无性孢子 分生孢子 厚垣孢子、节孢子、 芽孢子、菌核 霉菌的繁殖 卵孢子
有性孢子
子囊孢子 接合孢子
担孢子
霉菌繁殖方式

霉菌主要利用无性孢子进行繁殖 液体培养基上则主要采用菌丝片段的方式 繁殖

菌丝有隔,多核,孢子多为外生孢子(分 生孢子)
米 曲霉属 曲 菌落特征: 霉
绒毛状,局限性生长
个体形态:
多细胞,有隔膜; 分生孢子梗从足细胞生出,无
横隔,顶部膨大形成顶囊(棍
棒形、椭圆形、半圆形等)。 顶囊表面产生小梗(单层或双
层),分生孢子自小梗顶端相
继形成; 分生孢子头(顶囊、小梗及分 生孢子链构成)具有不同形状 和颜色。
用途:
• 传统发酵食品,如:酱,酱油 米曲霉(A. oryzae)(沪酿3.042):淀粉糖化及分解蛋 白质 • 酶制剂 淀粉酶 黑曲霉(A. niger) 蛋白酶 黄曲霉(A. flavus) 有机酸(柠檬酸,葡萄糖酸)
洛伐他汀:土曲霉 抑制胆固醇生物合成, 是β –羟基-β 甲基戊二酰辅酶A还原酶抑制剂 治疗高血脂
内层:葡聚糖(主要结构成分)
三明治状 外层:甘露聚糖 中层:蛋白质(大多与多糖结合)

《S7-200 SMART PLC应用技术》课后习题答案模块1-5全

《S7-200 SMART PLC应用技术》课后习题答案模块1-5全

模块一S7-200 SMART PLC基本指令的应用任务1.1 答案1.填空题(1)计算机(Computer)技术、控制(Control)技术、通信(Communication)技术(2)整体式、模块式(3)CPU(中央处理器)、存储器、输入/输出(I/O)接口电路、电源、外部设备接口、I/O(输入/输出)扩展接口(4)继电器输出、晶体管输出、晶闸管输出(5)循环扫描,输入采样、程序执行和输出刷新(6)20点、30点、40点、60点;经济型、标准型(7)漏型、源型(8)36、24(9)60(10)3、1002.选择题(1)B (2)B (3)A、B (4)A (5)C3.分析题(1)S7-200 SMART PLC的数字量输入端不可以同时接NPN和PNP两种传感器。

(2)继电器输出型的PLC既可以带直流负载,也可以带交流负载;晶体管输出型的PLC只能带直流负载。

(3)S7-200 SMART晶体管输出型PLC的数字量输出端不可以接漏型设备。

(4)有一台CPU SR40的PLC,控制一只DC24V的电磁阀和一只AC 220V的接触器线圈,PLC的输出端如何接线?任务1.2 答案1.填空题(1)Windows XP SP3(仅32位)、Windows 7(32位和64位)(2)组织编辑项目、提供指令(3)注释、变量的状态、硬件组态、设置通信2.分析题(1)硬件组态的任务就是用系统块生成一个与实际硬件系统相同的系统。

硬件组态包括CPU型号、扩展模块、信号板的添加以及它们相关参数的设置。

(2)按“仅绝对”地址、“符号:绝对”地址和“仅符号”地址来显示参数。

(3)①网线是否连接好。

检查网络电缆是否连接好,在CPU本体左上角以太网接口处有“以太网状态”指示灯“LINK”,此灯常亮表示以太网连接成功。

②检查编程设备的IP地址是否与CPU的IP地址在同一网段中。

编程设备必须与CPU在同一网段中。

S7-200 SMART CPU预置的IP地址为:192.168.2.1。

英语单词精解系列[高中译林模块1单元2]六十一

英语单词精解系列[高中译林模块1单元2]六十一

英语单词精解系列[高中译林模块1单元2]六十一along with释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 沿(顺)着;连同…一起;与…一道;随同…一起短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ got along well with:相处的很好get along on with:与…相处Gets along well with others:善于与他人友好相处;容易与他人沟通Getting Along Peacefully with Others:和睦相处along famously with a hammer:相惜以默Getting along well with others:好好与他人相处fault音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[fɔːlt; fɒlt] 美[fɔlt]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n. 故障;[地质] 断层;错误;缺点;毛病;(网球等)发球失误vi. 弄错;产生断层vt. (通常用于疑问句或否定句)挑剔短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ active fault:活断层;活动断裂;Page fault:活动断层Fault Tolerance:页缺失;页面失效;页错误;页面错误Double fault:容错;容错性;故障包容;容错能力Fault management:双发失误;两次失误;发球双错误;两次发球失误fault detection:故障管理;错误管理;障碍管理;进行故障管理fault plane:故障检测;探伤;故障监测;故障探测fault liability:断层面;断面;断层面上;断层带transient fault:过失责任;过错责任;过失赔偿责任;过失责任险例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.N-SING If a bad or undesirable situation is your fault , you caused it or are responsible for it. 过错; 过失2.N-COUNT A fault is a mistake in what someone is doing or in what they have done. 错误3.N-COUNT A fault in someone or something is a weakness in them or something that is not perfect. 缺点4.N-COUNT A fault is a large crack in the surface of the earth. 断层5.N-COUNT A fault in tennis is a service that is wrong according to the rules. (网球的) 发球失误6.V-T If you cannot fault someone, you cannot find any reason for criticizing them or the things that they are doing. 批评[with brd-neg]7.PHRASE If someone or something is at fault , they are to blame or are responsible for a particular situation that has gone wrong. 有过错8.PHRASE If you find fault with something or someone, you look for mistakes and complain about them. 挑剔; 指责behavior音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[bɪˈheɪvjə] 美[bɪ’hevjɚ]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n. 行为,举止;态度;反应短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ social behavior:社会行为;collective behavior:社会性行为;社群行为;社交行为Herd behavior:集合行为;集体行为;集群行为;群体行为Animal Behavior:羊群行为;羊群效应;从众行为;追风行为Organization Behavior:动物行为;动物行为学;家畜行为instinctive behavior:组织行为学;组织行为helping behavior:本能行为Cost behavior:助人行为;帮助行为role behavior:成本习性;成本性态;成本行为chat音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[tʃæt] 美[tʃæt]附加_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ [ 过去式chatted 过去分词chatted 现在分词chatting ]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ v. 聊天,闲谈;网聊n. 聊天,闲谈;(尤指非正式的)谈话;网聊;石;鸣禽n. (Chat) (美、泰、英)沙(人名)短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ chat room:网络聊天室;聊天室;网路聊天室;国粹茶楼Phleng Chat:泰国国歌;泰王国国歌Chat Heads:聊天大头贴;谈天头像Fireside Chat:名为对话;经济学人围炉夜话;炉边会议Microsoft Chat:启动;设置;网上聊天工具;简介Back Chat:回来聊天;回聊;回到聊天;回头聊chat vi:闲谈;聊天Chat Software:聊天软件;聊天信使Christmas chat:聊聊圣诞例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1.V-RECIP When people chat , they talk to each other in an informal and friendly way. 聊天2.N-COUNT Chat is also a noun. 聊天curtain音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[’kɜːt(ə)n] 美[ˈkɜrtən]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n. 幕;窗帘vt. 遮蔽;装上门帘短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ curtain wall:幕墙;护墙;玻璃幕墙;帘墙air curtain:空气幕;Curtain area:风帘;空气帘;Curtain coating:气幕window curtain:帘面积;帘平面或物体表面的大curtain tassel:淋涂;濂涂法;幕涂屏;幕式喷涂层Shutter curtain:窗帘;窗式幕;玻璃幕;横开窗帘fire curtain:窗帘穗子;幕缨;帘穗;窗帘挂球curtain gauze:快门帘幕例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.N-COUNT Curtains are pieces of material which you hang from the top of a window. 窗帘2.N-SING In a theatre, the curtain is the large piece of material that hangs in front of the stage until a performance begins. 幕布limit音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[’lɪmɪt] 美[’lɪmɪt]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n. 限制;限度;界线vt. 限制;限定短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Chandrasekhar limit:钱德拉塞卡极限;钱卓拉极限;钱氏极限Hayashi limit:林极限;林忠四郎极限Subsequential limit:子序列极限limit load:极限载荷;极限负载;极限负荷;负载极限stability limit:稳定极限;稳定性极限;不变极限;稳定限度permissible limit:容许极限;容许限度;允许极限;允许的限量tolerance limit:容许界限;容许限度;公差极限temperature limit:温度界限;温度限制;应用温度范围battery limit:界区;项目区界;装置区边界;装置边界wear limit:磨损极限;极限磨损;磨耗限度例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.N-COUNT A limit is the greatest amount, extent, or degree of something that is possible. 极限2.N-COUNT A limit of a particular kind is the largest or smallest amount of something such as time or money that is allowed because of a rule, law, or decision. 限制3.N-COUNT The limit of an area is its boundary or edge. 界限4.N-PLURAL The limits of a situation are the facts involved in it which make only some actions or results possible. 范围5.V-T If you limit something, you prevent it from becoming greater than a particular amount or degree. 限制6.V-T If you limit yourself to something, or if someone or something limits you, the number of things that you have or do is reduced. 对…作出限制7.limiting ADJ 限制的8.V-T If something is limited to a particular place or group of people, it exists only in that place, or is had or done only by that group. 仅限于(某地、某团体) [usu passive]9.→ see also limited10.PHRASE If an area or a place is off limits , you are not allowed to go there. 禁止入内sink音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[sɪŋk] 美[sɪŋk]附加_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ [ 过去式sank或sunk 过去分词sunk或sunken 现在分词sinking ]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ vi. 下沉;消沉;渗透vt. 使下沉;挖掘;使低落n. 水槽;洗涤槽;污水坑n. (Sink)人名;(英、瑞典)辛克短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ sink in:被完全理解;被理解advise sink:通知接收;表示已连接的通知接收information sink:信宿;信息宿;信息汇集点Sink into:沉入;汇成;沉沦sink plug:面盆堵头sink drainer:面盆下水cooled sink:冷却散热片Sink index:缩痕指数;凹陷指数chlorine sink:氯的吸收汇例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.N-COUNT A sink is a large fixed container in a kitchen or bathroom, with faucets to supply water. In the kitchen, it is used for washing dishes, and in the bathroom, it is used to wash your hands and face. (固定在厨房里的) 洗涤槽; (固定在浴室里的) 洗脸盆2.V-T/V-I If a boat sinks or if someone or something sinks it, it disappears below the surface of a mass of water.使沉没; 下沉3.V-I If something sinks , it disappears below the surface of a mass of water. 沉没4.V-I If something sinks , it moves slowly downward. 下沉5.V-I If something sinks to a lower level or standard, it falls to that level or standard. 下降6.V-I If your heart or your spirits sink , you become depressed or lose hope. (心情) 沮丧; (情绪) 低落7.V-T/V-I If something sharp sinks or is sunk into something solid, it goes deeply into it. 深深切入8.V-T If someone sinks a well, mine, or other large hole, they make a deep hole in the ground, usually by digging or drilling. 打(水井); 挖(矿井)9.V-T If you sink money into a business or project, you spend money on it in the hope of making more money. 投入(资金)10.→ see also sinking , sunk11.PHRASE If you say that someone will have to sink or swim , you mean that they will have to succeed through their own efforts, or fail. 自主沉浮harm音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[hɑːm] 美[hɑrm]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n. 伤害;损害vt. 伤害;危害;损害n. (Harm)人名;(德)哈尔姆短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ harm principle:伤害原则;不为害的原则;损害原则;害原理reduce harm:降低危害of Harm:损害之Harm Touch:伤害之触;死亡触摸;亡一指;独有技能Harm set:害人反害己minor harm:较小损害spiritual harm:精神损害harm restonic:谐波harm n:伤害;损害例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.V-T To harm a person or animal means to cause them physical injury, usually on purpose. (故意地) 伤害2.N-UNCOUNT Harm is physical injury to a person or an animal which is usually caused on purpose. (故意的)伤害3.V-T To harm a thing, or sometimes a person, means to damage them or make them less effective or successful than they were. 损害4.N-UNCOUNT Harm is the damage to something which is caused by a particular course of action. 损害5.PHRASE If you say it does no harm to do something or there is no harm in doing something, you mean that it might be worth doing, and you will not be blamed for doing it. 不妨(做某事)6.PHRASE If someone or something is out of harm’s way , they are in a safe place away from danger or from the possibility of being damaged. 免于伤害7.PHRASE If you say that there is no harm done , you are telling someone not to worry about something that has happened because it has not caused any serious injury or damage. 没有造成伤害(或损害)8.PHRASE If you say that someone or something will come to no harm or that no harm will come to them, you mean that they will not be hurt or damaged in any way. 将不受伤害; 将不受损害normal音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[’nɔːm(ə)l] 美[’nɔrml]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ adj. 正常的;正规的;标准的n. 正常;标准;常态;法线(数学)n. (Normal)人名;(德)诺马尔短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Normal :正态分布normal university:师范大学;高师院校;师范院校;高等师范院校normal subgroup:正规子群;不变子群normal curve:正态曲线;正态分布曲;正规曲Normal equation:正规方程组;Normal Tanks:正规方程;Normal ranges:法方程;标准方程normal saline:标准坦克大战;坦克大战;坦克魂斗罗;坦克游戏normal temperature:正常范围;正常值范围例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1.ADJ Something that is normal is usual and ordinary, and is what people expect. 正常的; 平常的2.ADJ A normal person has no serious physical or mental health problems. 身心正常的sign音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[saɪn] 美[saɪn]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n. 迹象;符号;记号;手势;指示牌vi. 签署;签名vt. 签署;示意短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ SIGN function:正负号函数;符号功能;记号功能currency sign:货币符号;equals sign:货币符;货币记号;通货符号number sign:等号;等于符号medical sign:井号;数字符号;数字标志;数字记号Equal sign:医学征象;医疗标识Guide sign:等号;相等符号;等于号HOLLYWOOD Sign:指路标志;指示标志;指路标记;导向标志Prohibition sign:好莱坞标志;好莱坞地标;好莱坞标牌;好莱坞招牌例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.N-COUNT A sign is a mark or shape that always has a particular meaning, for example, in mathematics or music. 符号2.N-COUNT A sign is a movement of your arms, hands, or head which is intended to have a particular meaning.姿势; 手势3.V-T If you sign , you communicate with someone using sign language. If a programme or performance is signed , someone uses sign language so that deaf people can understand it. 打手势; (节目或表演) 配手势语4.N-COUNT A sign is a piece of wood, metal, or plastic with words or pictures on it. Signs give you information about something, or give you a warning or an instruction. 指示牌5.N-VAR If there is a sign of something, there is something which shows that it exists or is happening. 迹象; 征兆6.V-T When you sign a document, you write your name on it, usually at the end or in a special space. You do this to indicate that you have written the document, that you agree with what is written, or that you were present as a witness. 在…上签名; 签署7.V-T/V-I If an organization signs someone or if someone signs for an organization, they sign a contract agreeing to work for that organization for a specified period of time. 签约雇用; 签约受雇8.N-COUNT In astrology, a sign or a sign of the zodiac is one of the twelve areas into which the heavens are divided. 星座9.→ see also signing10.PHRASE If you say that there is no sign of someone, you mean that they have not yet arrived, although you are expecting them to come. 不见某人的踪影stay up释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 不睡觉,熬夜短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ stay y up:叫醒;不睡;坚持不睡觉;挺住stay y up late:深夜不留stay-up power:持久力stay-up mercerize:持久力stay wake up:维系醒悟stay fed up with:对……感到厌烦The Stay-up DJ:熬夜DJStay-up Eye Mask:英树熬夜眼膜stay-up pressure suit:高空停留用加压服;停留加压服例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.PHRASAL VERB If you stay up , you remain out of bed at a time when most people have gone to bed or at a time when you are normally in bed yourself. 熬夜error音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[’erə] 美[’ɛrɚ]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n. 误差;错误;过失短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ error function:错误函数;差函数;或者错误函数sampling error:取样误差;systematic error:采样误差Error analysis:系统误差accidental error:错误分析;medical error:误差分析;偏误分析;error detection:差错分析Driver Error:偶然误差;偶然性差错;偶差error detector:医疗过失;医疗差错;含医疗疏失例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.N-VAR An error is something you have done that is considered to be incorrect or wrong, or that should not have been done. 错误2.PHRASE If you do something in error or if it happens in error , you do it or it happens because you have madea mistake, especially in your judgment. 错误地3.PHRASE If someone sees the error of their ways , they realize or admit that they have made a mistake or behaved badly. 认识到自身错误bicycle音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[’baɪsɪkl] 美[’baɪsɪkl]附加_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ [ 过去式bicycled 过去分词bicycled 现在分词bicycling ]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n. 自行车vi. 骑脚踏车vt. 骑自行车运送短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Bicycle Thieves:偷自行车的人;单车失窃记;德西卡;偷单车的人bicycle helmet:自行车头盔;自行车安全帽;自行车盔图片Touring bicycle:旅行自行车;旅行脚踏车;游览自行车;小轮车Chainless Bicycle:无链式自行车;无链式脚踏车;无链式自桥式起重机bike bicycle:自行车bicycle light:自行车灯;车灯;脚踏车灯;自行车Regular Bicycle:一般自行车;一般脚踏车;一般自桥式起重机;凡是自行车Junveniles Bicycle:孩童车bicycle pedal:自行车踏板;自行车脚踏;脚踏车踏板例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.N-COUNT A bicycle is a vehicle with two wheels which you ride by sitting on it and pushing two pedals with your feet. You steer it by turning a bar that is connected to the front wheel. 自行车defend音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[dɪ’fend] 美[dɪ’fɛnd]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ vt. 辩护;防护vi. 保卫;防守短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ defend against:防卫;防卫以免;防卫以免于;抵御defend korea:万历抗倭战争Defend Love:机动战士高达To defend:保卫;防卫;保护;防御defend tribe:部落大防御Defend Scratch:抗刮痕defend tier:抗裂防护层vigorously defend:竭力维护;详细翻译Defend Alone:独自防御例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.V-T If you defend someone or something, you take action in order to protect them. 保护2.V-T If you defend someone or something when they have been criticized, you argue in support of them. 为…争辩3.V-T When a lawyer defends a person who has been accused of something, the lawyer argues on their behalf in a court of law that the charges are not true. 为…辩护4.V-T When a sports player plays in the tournament which they won the previous time it was held, you can say that they are defending their title. 卫冕[journalism]starve音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[stɑːv] 美[stɑrv]附加_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ [ 过去式starved 过去分词starved 现在分词starving ]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ vi. 饿死;挨饿;渴望vt. 使饿死;使挨饿短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ surfeit starve:过度Dont Starve:饥荒starve e:饿死;使饿死We Starve:便会挨饿starve of:挨饿的;饿死的;迫切需要Really starve:真是困死了starve niggardly:勉强地挨饿starve mentally:精神上挨饿sate starve:饱例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.V-I If people starve , they suffer greatly from lack of food which sometimes leads to their death. 挨饿; 饿死2.V-T To starve someone means not to give them any food. 使挨饿3.V-T If a person or thing is starved of something that they need, they are suffering because they are not getting enough of it. 使极其缺乏physical音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[’fɪzɪk(ə)l] 美[’fɪzɪkl]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ adj. [物] 物理的;身体的;物质的;根据自然规律的,符合自然法则的n. 体格检查短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Physical Properties:物化性质;物理性质;物理性能;物理特性physical geography:自然地理学;地球物理;自然地理;天然地舆学physical quantity:物理量;物理量;实物量;要的实物量Physical Review:物理评论;物理学评论;物理评论B;物理评论DPhysical Therapist:理疗师;物理治疗师;物理治疗员;理学疗法士physical assets:有形资产;物质资产;什物资产physical phenomenon:物理现象physical system:物质系统;physical intimacy:物理系统例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.AD J Physical qualities, actions, or things are connected with a person’s body, rather than with their mind. 肉体的; 身体的2.physically ADV 身体上地3.ADJ Physical things are real things that can be touched and seen, rather than ideas or spoken words. 实物的;有形的4.physically ADV 有形地5.ADJ Physical means relating to the structure, size, or shape of something that can be touched and seen. 物理的[ADJ n]6.ADJ Physical means connected with physics or the laws of physics. 物理学的[ADJ n]7.ADJ Someone who is physical touches people a lot, either in an affectionate way or in a rough way. (以温柔或粗鲁的方式) 有大量身体接触的8.ADJ Physical is used in expressions such as physical love and physical relationships to refer to sexual relationships between people. 性的[ADJ n]9.N-COUNT A physical is a medical examination by your doctor to make sure that there is nothing wrong with your health, or a medical examination to make sure you are fit enough to do a particular job. 体格检查mix up释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 混淆;拌和;调和短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ MIX IT UP:混合模式;举拳猛打;参与打斗;争执起来mix sth up:混合mix-up strategy:混合战略The Mix-Up:唱片名mix things up:混在一起mix something up:把mix-up:混乱;打法多样;混票;混战mix x up:混全;混淆;搞糊涂;拌和Mix-up Principle:拌合原理例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.PHRASAL VERB If you mix up two things or people, you confuse them, so that you think that one of them is the other one. 混淆2.PHRASAL VERB If you mix up a number of things, you put things of different kinds together or place things so that they are not in order. 把不同类的事物混放在一起; 弄乱3.→ see also mixed upclinic音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[’klɪnɪk] 美[’klɪnɪk]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n. 临床;诊所;卫生所,卫生室;医务室短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ pet clinic:宠物医院;的领域对象实现;概述;数据库操作的实现Glaucoma Clinic:青光眼;眼科;眼科青光眼Memory Clinic:记忆力诊所;你也可以去影象诊所The Clinic:诊所惊魂;急诊室;恶灵急诊室;英文片名Monteria Clinic:蒙特里亚诊所contract clinic:合同医院clinic symptom:临床症状;临床特性clinic nurse:门诊护士;医务室护士;诊所护士;厂内医务室护士clinic study:临床研究;临床观察例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1.N-COUNT A clinic is a building where people go to receive medical advice or treatment. 诊所handle音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[’hænd(ə)l] 美[’hændl]附加_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ [ 过去式handled 过去分词handled 现在分词handling ]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n. [建] 把手;柄;手感;口实vt. 处理;操作;运用;买卖;触摸vi. 搬运;易于操纵短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ valve handle:阀门手柄;阀门手轮;阀杆;阀柄frank handle:翰德乐file handle:文件句柄;锉刀柄;档案控制代码;锉刀把die handle:板牙架;螺纹板牙扳手;板牙扳手Handle Wrap:手握片Steering Handle:方向把手;操舵手柄;标的目的把儿;标的目的把手Handle Lever:拉杆;手柄杆;开关杆;调节柄handle webbing:织带手挽;详细翻译grab handle:扶手;车顶安全把手;握柄;抓具例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.N-COUNT A handle is a small round object or a lever that is attached to a door and is used for opening and closing it. 门把手2.N-COUNT A handle is the part of an object such as a tool, bag, or cup that you hold in order to be able to pick up and use the object. 柄; 把3.V-T If you say that someone can handle a problem or situation, you mean that they have the ability to deal with it successfully. (成功地) 处理4.V-T If you talk about the way that someone handles a problem or situation, you mention whether or not they are successful in achieving the result they want. 应付5.handling N-UNCOUNT 应付6.V-T If you handle a particular area of work, you have responsibility for it. 负责7.V-T When you handle something, you hold it or move it with your hands. 拿; 用手移动8.PHRASE If you fly off the handle , you suddenly and completely lose your temper. 突然大发脾气[非正式]act音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[ækt] 美[ækt]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n. 行为,行动;法案,法令;假装;(戏剧,歌剧等)一幕v. 做事,行动;假装;扮演(戏剧,电影中的角色);充当,起作用;对…有影响n. (ACT)美国大学入学考试,全称是American College Testing短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Sister Act:修女也疯狂;修女也猖狂;修女也猖獗;修女也疯狂专辑act out:演出;表演出来;演角色Coercion Act:翻译;高压统治法patent act:专利法;专利法案education act:年教育法;教育法;教育法案;教育法令Espionage Act:反间谍法;间谍法;间谍法案;反间谍法案Finance act:财政法;年英国财政法案;财政法案;财政法案英语act psychology:动作心理学;意动的研究juristic act:法律行律例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.V-T/V-I When you act , you do something for a particular purpose. 行动2.V-I If you act on advice or information, you do what has been advised or suggested. (按照建议或信息) 行动3.V-I If someone acts in a particular way, they behave in that way. 表现4.V-I If someone or something acts as a particular thing, they have that role or function. 担任5.V-I If someone acts in a particular way, they pretend to be something that they are not. 假装6.V-I When professionals such as lawyers act for you, or act on your behalf , they are employed by you to deal with a particular matter. 代理7.V-I If a force or substance acts on someone or something, it has a certain effect on them. 作用(于)8.V-I If you act in a play or film, you have a part in it. 表演9.N-COUNT An act is a single thing that someone does. 行为[正式] [oft N ’of’ n]10.N-COUNT An Act is a law passed by the government. 法案11.N-COUNT An act in a play, opera, or ballet is one of the main parts into which it is divided. 幕[oft N num]12.N-COUNT An act in a show is a short performance which is one of several in the show. 节目13.N-SING If you say that someone’s behaviour is an act , you mean that it does not express their real feelings. 装样子14.PHRASE If you catch someone in the act , you discover them doing something wrong or committing a crime. 逮个正着15.PHRASE If someone who has been behaving badly cleans up their act , they start to behave in a more acceptable or responsible way. 检点(某人的) 行为[非正式]16.PHRASE If you get in on the act , you take part in or take advantage of something that was started by someone else. 插手其中[非正式]17.PHRASE You say that someone was in the act of doing something to indicate what they were doing when they were seen or interrupted. 在(做某事的) 行动中18.PHRASE If you get your act together , you organize your life or your affairs so that you are able to achieve what you want or to deal with something effectively. 有条理地安排(生活或事务) [非正式]19.to act the fool →see foolscene音标_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 英[siːn] 美[sin]释义_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n. 场面;情景;景象;事件短语_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Scene Explorer:增强的场景浏览器;场景浏览器;加强的场景阅读器;增强的场景观赏器OFF SCENE:画外音;旁白Autumn Scene:秋天的心事;秋的心事Scene Setup:场景设定;场景设置;场景设计;片段设定SCENE TWELVE:第十二场SCENE THIRTEEN:淘气的小糖糖;第十三场xRef Scene:外部参照场景;参考外部场景;参考场景例句_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1.N-COUNT A scene in a play, movie, or book is part of it in which a series of events happen in the same place.场面; 片断2.N-COUNT You refer to a place as a scene when you are describing its appearance and indicating what impression it makes on you. 景象3.N-COUNT You can describe an event that you see, or that is broadcast or shown in a picture, as a scene of a particular kind. 场面; 事件。

初中数学 数与式模块1-2 实数讲义(含答案解析)

初中数学 数与式模块1-2 实数讲义(含答案解析)

实数题型练题型一平方根例1.16的平方根是().A .±8B .±4C .4D .-4【解析】因为(±4)2=16,所以16的平方根是±4变式1.若a +1和-5是实数m 的平方根,则a 的值是().A.1B.2C.3D.4或-6【答案】D【解析】【分析】根据平方根的定义可得两个关于a 的一元一次方程,解方程即可得.【详解】解:由题意得:15a +=-或1(5)0a ++-=,解得6a =-或4a =,故选:D .【点睛】本题考查了平方根、一元一次方程的应用,熟练掌握平方根的定义是解题关键.题型二算术平方根(2)非负数a 的算术平方根a 有双重非负性:①被开方数a 是非负数;②算术平方根a 本身是非负数.(3)求一个非负数的算术平方根与求一个数的平方互为逆运算,在求一个非负数的算术平方根时,可以借助乘方运算来寻找.例2.2.81的算术平方根为().A.9B.-9C.-3D.27【答案】A【解析】【分析】根据算术平方根的定义即可得.【详解】解:2981=Q ,81\的算术平方根为9,故选:A .【点睛】本题考查了算术平方根,熟记定义是解题关键.变式3.下列式子错误的是().A.2=±B.1=±C.3=- D.32=【答案】B【解析】【分析】根据算术平方根和平方根的定义求解即可.【详解】A.2=±,故该选项正确,不符合题意;B.1=,故该选项错误,符合题意;C.3=-,故该选项正确,不符合题意;D.32==,故该选项正确,不符合题意;故选B .【点睛】本题考查算术平方根和平方根的定义,熟练掌握相关定义是解答本题的关键.题型三非负数的性质:算术平方根(1)非负数的性质:算术平方根具有非负性.(2)利用算术平方根的非负性求值的问题,主要是根据被开方数是非负数,开方的结果也是非负数列出不等式求解.非负数之和等于0时,各项都等于0利用此性质列方程解决求值问题.例3.4.下列说法正确的是()A.﹣81平方根是﹣9B.9C.平方根等于它本身的数是1和0D.一定是正数【答案】D【解析】【分析】根据一个正数有两个平方根,这两个平方根互为相反数,零的平方根是零,负数没有平方根进行分析即可.【详解】A 、﹣81没有平方根,故A 选项错误;B 9的平方根是±3,故B 选项错误;C 、平方根等于它本身的数是0,故C 选项错误;D 一定是正数,故D 选项正确,故选D .【点睛】本题主要考查了平方根,解题的关键是掌握平方根的性质.变式5.0=,则x y +的值为()A.10B.不能确定C.6-D.10-【答案】C【分析】根据算术平方根的非负性得到x 和y 的值,再代入计算.0=,∴x-2=0且y+8=0,∴x=2,y=-8,∴x y +=-6,故选C .【点睛】本题考查了算术平方根的非负性,解题的关键是掌握被开方数是非负数.题型四立方根例4.-8的立方根等于.【解析】∵(-2)3=-8,∴-8的立方根是-2变式6.若519x +的立方根是4,则27x +的平方根是________.【答案】5±【分析】首先利用立方根的定义可以得到关于x 的方程,解方程即可求出x ,然后利用平方根的定义即可求解.【详解】∵5x+19的立方根是4,∴5x+19=64,解得x=9则2x+7=2×9+7=25,∴25的平方根是±5故答案±5.【点睛】此题主要考查了利用立方根的概念解题.牢牢掌握灵活运用.如果一个数x 的立方等于a ,即x 的三次方等于a (x 3=a ),那么这个数x 就叫做a 的立方根,也叫做三次方根.读作“三次根号a”其中,a 叫做被开方数,3叫做根指数.题型五计算器—数的开方正数a 的算术平方根a 与被开方数a 的变化规律是:当被开方数a 的小数点每向左或向右平移2位时,它的算术平方根的小数点也相应向左或向右平移1位,即a 每扩大(或缩小)100倍,a 相应扩大(或缩小)10倍.例5.7.用计算器计算:≈_____.(精确到0.01)【答案】15.63【解析】【分析】根据计算器的使用方法、精确度的定义即可得.15.63≈,故答案为:15.63.【点睛】本题考查了计算器的使用、精确度,熟练掌握计算器的使用方法是解题关键.变式8.利用计算器,得7.071≈≈≈≈,按此规【答案】22.36【解析】【分析】从题目已经给出的几个数的估值,寻找规律即可得到答案.7.071≈≈≈≈,不难发现估值的规律即:第一个数扩大10倍得到第三个数,第二个数扩大10倍得到第四个数,因此得到第三个数的估值扩大1022.36≈.故答案为22.36.【点睛】本题是规律题,主要考查找规律,即各数之间的规律变化,在做题时,学会观察,利用已知条件得到规律是解题的关键.题型六无理数(1)定义:无限不循环小数叫做无理数.说明:无理数是实数中不能精确地表示为两个整数之比的数,即无限不循环小数.如圆周率、2的平方根等.(2)无理数与有理数的区别:①把有理数和无理数都写成小数形式时,有理数能写成有限小数和无限循环小数,比如4=4.0,13=0.33333…而无理数只能写成无限不循环小数,比如2=1.414213562②所有的有理数都可以写成两个整数之比;而无理数不能.例6.9.在2π,3.14,0,0.1010010001…,23中,无理数有______个.【答案】2【解析】【分析】根据无理数的种类即可判断出上述题目中无理数的个数.【详解】无理数是无限不循环小数,在2π,3.14,0,0.1010010001…,23中,2π,0.1010010001…两个数是无理数.【点睛】此题重点考察学生对无理数的理解,掌握无理数的定义是解题的关键.变式10.下列说法正确的是()A.9的算术平方根是﹣3B.带根号的数是无理数C.无理数是无限小数D.的算术平方根是2【答案】C【解析】【分析】根据算术平方根的概念、无理数的概念进行判断即可.【详解】解:A 、9的算术平方根是3,故此选项错误;B 、带根号的数不一定是无理数,如,故此选项错误;C 、无理数是无限小数,故此选项正确;D 故选:C .【点睛】本题考查算术平方根、无理数,理解无理数的概念,会求一个数的算术平方根是解答的关键,注意D 选项是易错点.题型七实数(1)实数的定义:有理数和无理数统称实数.(2)实数的分类:①可分为:有理数和无理数;②可分为:正实数、0和负实数.例7.11.在−,0,2270.1010010001…−2π中,负实数集合:{________________}.【答案】−2π【解析】【分析】先根据二次根式的性质,立方根的运算,负整指数幂的运算,将各数进行化简,再根据负实数的定义,进行判断即可.【详解】0-=-<,是负实数;0不是负实数;227>,不是负实数;50=-<,是负实数;0.1010010001…>0,不是负实数;110==>,不是负实数;2π-<,是负实数,综上所述,负实数有:−2π,故填:−2π.【点睛】此题主要考查了负实数的定义,二次根式的性质,立方根的计算,负整指数幂的计算,解题关键是掌握负理数的定义,二次根式的性质,立方根的计算,负整指数幂的运算法则.变式12.我们规定:相等的实数看作同一个实数.有下列六种说法:①数轴上有无数多个表示无理数的点;②带根号的数不一定是无理数;③每个有理数都可以用数轴上唯一的点来表示;④数轴上每一个点都表示唯一一个实数;⑤没有最大的负实数,但有最小的正实数;⑥没有最大的正整数,但有最小的正整数.其中说法错误的有_____(注:填写出所有错误说法的编号)【答案】⑤【解析】【详解】分析:根据每种说法所涉及的数学知识进行分析判断即可.详解:(1)“数轴上有无数多个表示无理数的点”的说法是正确的,故①正确;(2)“带根号的数不一定是无理数”是正确的,如带有根号,但它是有理数,故②正确;(3)“每个有理数都可以用数轴上唯一的点来表示”的说法是正确的,故③正确;(4)“数轴上的每一个点都表示唯一的实数”的说法是正确的,故④正确;(5)“没有最大的负实数,但有最小的正实数”的说法是错误的,因为没有最小的正实数,故⑤错误;(6)“没有最大的正整数,但有最小的正整数”的说法是正确的,故⑥正确.综上所述,上述说法中,只有⑤中说法是错误的.故答案为:⑤.点睛:熟悉“每种说法中所涉及的相关数学知识”,知道“实数和数轴上的点是一一对应的关系”是正确解答本题的关键.题型八实数的性质(1)在实数范围内绝对值的概念与在有理数范围内一样.实数a的绝对值就是在数轴上这个数对应的点与原点的距离.(2)实数的绝对值:正实数a的绝对值是它本身,负实数的绝对值是它的相反数,0的绝对值是0(3)实数a的绝对值可表示为|a|={a(a≥0)-a(a<0),就是说实数a的绝对值一定是一个非负数,即|a|≥0.并且有若|x|=a(a≥0),则x=±a.实数的倒数乘积为1的两个实数互为倒数,即若a与b互为倒数,则ab=1;反之,若ab=1,则a与b互为倒数,这里应特别注意的是0没有倒数.例8.13.的绝对值是________,相反数是________,倒数是________.【答案】①.②.③.【解析】【分析】根据负数的绝对值是它的相反数,可得负数的绝对值;根据只有符号不同的两个数互为相反数,可得一个数的相反数;根据乘积为1的两个数互为倒数,可得一个数的倒数.的绝对值是倒数是故答案为(1).(2).(3).【点睛】本题考查的是绝对值、相反数和倒数的知识,熟知绝对值的性质、相反数的定义及倒数的定义是解答此题的关键.变式14.23﹣π的绝对值是_____.【答案】①.﹣②.π﹣3【解析】【分析】根据相反数和绝对值的计算方法解答.【详解】解:2的相反数:﹣(2|3﹣π|=π﹣3.故答案是:﹣π﹣3.【点睛】本题考查了相反数、绝对值,熟练掌握相反数、绝对值的定义是解题的关键.题型九实数与数轴(1)实数与数轴上的点是一一对应关系.任意一个实数都可以用数轴上的点表示;反之,数轴上的任意一个点都表示一个实数.数轴上的任一点表示的数,不是有理数,就是无理数.(2)在数轴上,表示相反数的两个点在原点的两旁,并且两点到原点的距离相等,实数a 的绝对值就是在数轴上这个数对应的点与原点的距离.(3)利用数轴可以比较任意两个实数的大小,即在数轴上表示的两个实数,右边的总比左边的大,在原点左侧,绝对值大的反而小.例9.15.如果正实数a在数轴上对应的点到原点的距离是a=______.【解析】【分析】根据数轴的特点即可求解.【详解】∵实数a在数轴上对应的点到原点的距离是,∴a∵a为正∴a=.【点睛】此题主要考查实数与数轴,解题的关键是熟知数轴的特点.变式16.如图,在数轴上找到表示-3的点B,过点A作AB⊥OB,AB=2,以O为圆心,OA为半径作弧,弧与数轴交于点C,则点C在数轴上表示的数是__.【答案】【解析】OB=,再利用勾股定理可得OA=从而可得【分析】先根据数轴的定义可得3OC==,【详解】解:设点C在数轴上表示的数是a,则OC aOB=--=,由题意得:0(3)3,⊥=AB OB AB,2∴===,OA由作图可知,OC OA==,即a=解得a=a<-<,由数轴的定义得:30∴=,a即点C在数轴上表示的数是,故答案为:.【点睛】本题考查了实数与数轴、勾股定理,熟练掌握实数与数轴的关系是解题关键.题型十实数大小比较(1)任意两个实数都可以比较大小.正实数都大于0,负实数都小于0,正实数大于一切负实数,两个负实数绝对值大的反而小.(2)利用数轴也可以比较任意两个实数的大小,即在数轴上表示的两个实数,右边的总比左边的大,在原点左侧,绝对值大的反而小.例10.17.将实数,π-,0,1由大到小用“>”连起来,可表示为__________.【答案】10π>>>-解:正实数都大于0,负实数都小于0,正实数大于一切负实数,两个负实数绝对值大的反而小,据此判断即可.【解析】【详解】正实数都大于0,负实数都小于0,正实数大于一切负实数,两个负实数绝对值大的反而小,据此判断即可.-≈-.解:∵ 2.6≈-,π 3.14∴10π>>>-变式18.比较大小:(1)-100___0.3;(2___3;(3)-3.14___-π.【答案】①.<②.<③.>【解析】【分析】(1)根据负数小于正数即可得;(2)根据无理数的估算方法即可得;(3)根据负数绝对值大的反而小即可得.【详解】解:(1)由负数小于正数得:1000.3-<,故答案为:<;(2)79< ,<3<,故答案为:<;(3) 3.1415926 3.14π≈> ,3.14π∴->-,故答案为:>.【点睛】本题考查了实数的大小比较、无理数的估算,熟练掌握实数的大小比较方法是解题关键.题型十一估算无理数的大小估算无理数大小要用逼近法.思维方法:用有理数逼近无理数,求无理数的近似值.例11.<a ,且a 是整数,则a =.<2<a ∴a =2变式19.3-最接近的整数是___.【答案】1【解析】【分析】先根据无理数的估算可得34<<,再比较3-与4的大小,由此即可得出答案.【详解】解:91416<< ,<<,即34<<,--=--+3(434=-,7=-,3.5)=>,->-,34最接近的整数是4,-=,3-最接近的整数是431故答案为:1.【点睛】本题考查了无理数的估算、实数的大小比较,熟练掌握无理数的估算方法是解题关键.题型十二实数的运算(1)实数的运算和在有理数范围内一样,值得一提的是,实数既可以进行加、减、乘、除、乘方运算,又可以进行开方运算,其中正实数可以开平方.(2)在进行实数运算时,和有理数运算一样,要从高级到低级,即先算乘方、开方,再算乘除,最后算加减,有括号的要先算括号里面的,同级运算要按照从左到右的顺序进行.另外,有理数的运算律在实数范围内仍然适用.例12.(−5)2=.解:(−5)2=25−4+2=23变式20.计算+【答案】7.【解析】【分析】先计算立方根、算术平方根,再计算有理数的加减即可得.【详解】解:原式27=-++,52=+,7=.【点睛】本题考查了立方根、算术平方根等知识点,熟练掌握各定义和运算法则是解题关键.实战练21.若9x2-16=0,则x=_______.【答案】4 3±【解析】【分析】先将方程变形为216 9x=,然后方程两边同时开平方即可得到x的值.【详解】解:由题意可知:216 9x=,等式两边同时开平方,得到:43x=±,故答案为:43±.【点睛】本题考查了利用平方根的定义解方程,计算过程中细心,注意正数开平方后有两个平方根.22.的算术平方根是_______.【解析】=10,然后再根据算术平方根的定义可得答案.=10,10,,.【点睛】此题主要考查了实数和算术平方根,相反数,关键是掌握算术平方根的概念:一般地,如果一个正数x的平方等于a,即x2=a,那么这个正数x叫做a的算术平方根.23.0+=,则22012a b --=______.【答案】109-【解析】【详解】分析:先由非负性的性质得出3a +1=0,b ﹣1=0,求出a ,b 代入式子计算即可.=0,∴3a +1=0,b ﹣1=0,∴a =﹣13,b =1,∴﹣a 2﹣b 2012=﹣(13)2﹣12012=﹣19﹣1=﹣109.故答案为﹣109.点睛:本题是非负数的性质:算术平方根,主要考查了一元一次方程的解法,有理数的运算,解答本题的关键是求出a ,b .24.若一个正数的平方根是3m +和215m -,n 的立方根是2-,则2n m -+的算术平方根是______.【答案】4【解析】【分析】首先根据平方根的定义,求出m 值,再根据立方根的定义求出n ,代入-n+2m ,求出这个值的算术平方根即可.【详解】解:∵一个正数的两个平方根分别是m+3和2m-15,∴m+3+2m-15=0,解得:m=4,∵n 的立方根是-2,∴n=-8,把m=4,n=-8代入-n+2m=8+8=16,所以-n+2m 的算术平方根是4.故答案为:4.【点睛】本题考查了平方根、算术平方根、立方根.解题的关键是掌握平方根、算术平方根、立方根的定义,能够利用定义求出m 、n 值,然后再求-n+2m 的算术平方根.25.如图,在5×5的正方形网格中,以AB为边画直角△ABC,使点C在格点上,且另外两条边长均为无理数,满足这样条件的点C共__个.【答案】4【解析】【分析】本题需根据直角三角形的定义和图形即可找出所有满足条件的点.【详解】解:根据题意可得以AB为边画直角△ABC,使点C在格点上,且三边都为无理数,满足这样条件的点C共D,E,F,H4个点.故答案为8.26.若|a,则的相反数是____.【答案】2【解析】【分析】先化简绝对值可得a=26a=,再根据算术平方根的定义、相反数的定义即可得.,【详解】解:a=∴=,a26∴=,a===-,2则的相反数是2,故答案为:2.【点睛】本题考查了化简绝对值、算术平方根、相反数,熟练掌握算术平方根的定义是解题关键.27.①点M在数轴上与原点相距M表示的实数为____,②数轴上到的点所表示的数是___.【答案】①.②.0或-【解析】【分析】①根据实数与数轴的关系建立等式,再化简绝对值即可得;②根据实数与数轴、数轴两点间的距离公式即可得.【详解】解:①设点M表示的实数为m,m-=,则0解得m=即点M表示的实数为故答案为:②设这个点所表示的数是a,-=,则aa=或a=-解得0即这个点所表示的数是0或-,故答案为:0或-.【点睛】本题考查了实数与数轴,正确建立含绝对值的等式是解题关键.28.比较大小:________(填“>”或“<”=).【答案】>【解析】【分析】先将两个数进行平方再比大小【详解】∵22==1812(,(又18>12∴>故答案为>【点睛】此题主要考查二次根式的大小比较29.已知a的整数部分,b则(-a)3+(2+b)2=________;【答案】0【解析】【分析】根据4<8<9的整数部分,表示出小数部分,确定出a与b 的值,代入所求式子计算即可求出值.【详解】∵4<8<9,∴23,的整数部分a=2,小数部分,则原式=-8+8=0.故答案为0.【点睛】此题考查了估算无理数的大小,解题关键是确定无理数的整数部分与小数部分.30.+2=________.【答案】5【解析】【分析】由立方根、算术平方根的性质化简.2=3+2=5故答案为:5.【点睛】本题考查实数的运算,涉及立方根、算术平方根等知识,是基础考点,难度较易,掌握相关知识是解题关键.31.若一个正数的两个平方根分别为2-a与3a+6,则这个正数为()A.2B.-4C.6D.36【答案】D【解析】【分析】根据平方根的定义可得一个关于a的一元一次方程,解方程求出a的值,再计算有理数的乘方即可得.【详解】解:由题意得:2(36)0a a -++=,解得4a =-,则这个正数为222(2)(24)636a -=+==,故选:D .【点睛】本题考查了平方根、一元一次方程的应用,熟练掌握平方根的定义是解题关键.32.下列说法正确的是()A.-4是(-4)2的算术平方根B.±4是(-4)2的算术平方根C.2D.-2【答案】D【解析】【分析】根据算术平方根、平方根的定义逐项判断即可得.【详解】A 、2(4)16-=,16的算术平方根是4,则此项错误,不符题意;B 、2(4)16-=,16的算术平方根是4,则此项错误,不符题意;C 4=,4的平方根是2±,则此项错误,不符题意;D 4=,4的平方根是2±,则2-故选:D .【点睛】本题考查了算术平方根、平方根,掌握理解定义是解题关键.33.0+=,则x -y 的值为()A.3B.-3C.1D.-1【答案】D【解析】【分析】先根据算术平方根的非负性可得10,20x y -=-=,从而可得1,2x y ==,再代入计算即可得.【详解】解:由题意得:10,20x y -=-=,解得1,2x y ==,则121x y -=-=-,故选:D .【点睛】本题考查了算术平方根的非负性,熟练掌握算术平方根的非负性是解题关键.34.2=-,则的值是()A.1B.2C.3D.4【答案】C【解析】【分析】先根据立方根的定义求出a 的值,再根据算术平方根的定义即可得.【详解】解:2=-,18a ∴-=-,解得9a =,3==,故选:C .【点睛】本题考查了立方根与算术平方根、一元一次方程的应用,熟练掌握立方根与算术平方根的定义是解题关键.35.下列说法正确的是()A.实数可分为有理数和无理数B.无限小数都是无理数C.只有0的立方根是它本身D.1的任何次方根都是1【答案】A【解析】【分析】根据实数的概念,立方根的概念,无理数的概念逐个求解即可.【详解】解:选项A :实数分为有理数和无理数,故选项A 正确;选项B :无限不循环的小数是无理数,无限循环小数可以写成分数的形式,是有理数,故选项B 错误;选项C :立方根等于它本身的数有-1,0,1,故选项C 错误;选项D :1的平方根为±1,故选项D 错误;故选:A .【点睛】本题考查实数的分类,无理数的定义,立方根,平方根的性质,解题的关键是熟记这些基本概念.36.若a,b ,c 的相反数、绝对值、倒数,则下列结论正确的是()A.a b> B.b c < C.a c > D.2b c =【答案】D【解析】【分析】根据题意分别列出a ,b ,c 分别表示的数,然后比较即可得出结论.【详解】由题意,a =b =,2c ==,∴2b c =,故选:D .的倒数求出是解题关键.37.如图,根据图中的标注和作图痕迹可知,在数轴上的点A 所表示的数为()A.1-B.1-+C.D.1【答案】A【解析】【分析】根据勾股定理,结合数轴即可得出结论.【详解】解:∵在Rt △BCD 中,BD=2,CD=1,∴∵根据图中的标注和作图痕迹可知,∴∴点A 表示的实数是1--故选A .【点睛】本题考查勾股定理,以及数轴与实数,关键是求出BC 的长.38.1-的值()A.在4和5之间B.在5和6之间C.在6和7之间D.在7和8之间【答案】B【解析】【分析】根据无理数的估算即可得.【详解】解:364149<< ,<<,即67<<,61171∴-<-<-,即516<-<,故选:B .【点睛】本题考查了无理数的估算,熟练掌握无理数的估算方法是解题关键.39.实数a 、b 在数轴上的位置如图所示,那么a b -的结果是()A.2aB.2bC.2a -D.2b-【答案】D【解析】【分析】由数轴可得到0b a <<a b =+和绝对值的性质,即可得到答案.【详解】解:根据题意,则0b a <<,∴0a b ->,0a b +<,∴a b -+=a b a b-++=a b a b---=2b -;故选:D .【点睛】本题考查了二次根式的性质,绝对值的意义,数轴的定义,解题的关键是掌握所学的知识,正确得到0b a <<.40.已知一个正数m 的两个不同的平方根是2a +3和1-3a ,求m 的值.【答案】121【解析】【分析】一个正数的两个平方根互为相反数,根据它们的和为0,求出a 的值,然后求出这个数的平方根,最后根据平方根的平方即可求出m 的值.【详解】解:根据题意得:(2a +3)+(1-3a )=0,2a +3+1-3a =0,解得:a =4,∴这个数的其中一个平方根为2×4+3=11∴m =112=121.【点睛】本题考查平方根的定义,熟练掌握正数的平方根有两个,它们互为相反数,即它们的和为0.41.互为相反数,求(x+y)2016的平方根.【答案】±1【解析】【详解】试题分析:根据相反数的性质列出算式,根据非负数的性质列出二元一次方程组,解方程组求出x、y的值,根据平方根的概念解答即可.=0,则3020x yx y-+⎧⎨+⎩==,解得,21xy-⎧⎨⎩==,∴(x+y)2016=1,∴(x+y)2016的平方根是±1.42.正数x的两个平方根分别为3﹣a和2a+7.(1)求a的值;(2)求44﹣x这个数的立方根.【答案】(1)a=﹣10;(2)4-x的立方根是﹣5【解析】【分析】(1)理解一个正数有几个平方根及其两个平方根间关系:一个正数有两个平方根,它们互为相反数,求出a的值;根据a的值得出这个正数的两个平方根,即可得出这个正数,计算出44-x的值,再根据立方根的定义即可解答.【详解】解:(1)由题意得:3﹣a+2a+7=0,∴a=﹣10,(2)由(1)可知x=169,则44-x=﹣125,∴44-x的立方根是-5.【点睛】此题考查了立方根,平方根,注意一个正数有两个平方根,它们互为相反数;0的平方根是0;负数没有平方根.43.判断下面两句话是否正确.若正确请说明理由;若不正确,请举例说明.(1)两个实数的和一定大于每一个加数.(2)两个无理数的积一定是无理数.【答案】(1)、答案见解析;(2)、答案见解析【解析】【分析】(1)、当两个加数为负数时,则和小于任何一个加数;(2)、当两个数为同一个无理数时,则两数的积为有理数.【详解】(1)、错误.例子:(-1)+(-2)=-3,-3<-1,-3<-2;(2)、错误.是无理数,而2是有理数.44.实数a 、b 、c 在数轴上的位置如图所示,其中c 为8的立方根,求代数式2b a b +--的值.【答案】2.【解析】【分析】先根据数轴的定义可得0b a c <<<,从而可得0,0b a b c -<-<,再根据立方根的定义可得2c =,然后根据算术平方根的定义、化简绝对值即可得.【详解】解:由数轴的定义得:0b a c <<<,0,0b a b c ∴-<-<,c 为8的立方根,2c ∴=,()()()22b a b a a b c b b +--=-+-+---,2a a b c b b =-+-+-+,c =,2=.【点睛】本题考查了实数与数轴、立方根与算术平方根等知识点,熟练掌握数轴的定义是解题关键.45.(1)用“<”、“>”或“=”(2)由以上可知:①1-=________________=_____________;(3)计算:1-+ .(结果保留根号)【答案】(1)<,<;(21-;(31-【解析】【分析】(1)当被开方数越大时算数平方根越大,依此判断即可;(2)依据(1)知次数为负数,而负数的绝对值等于它的相反数即可化简;(3)依据(2)将化简的结果相加即可.【详解】解:(1)<,<(21-(3)原式1-+-+-+1【点睛】此题是考察算数平方根的大小比较,准确解得(1)是关键,为后两问做基础.46.已知:31a +的立方根是2-,21b -的算术平方根3,c(1)求,,a b c 的值;(2)求922a b c -+的平方根.【答案】(1)3,5,6a b c =-==;(2)其平方根为4±.【解析】【分析】(1)根据立方根,算术平方根,无理数的估算即可求出,,a b c 的值;(2)将(1)题求出的值代入922a b c -+,求出值之后再求出平方根.【详解】解:(1)由题得318,219a b +=--=.3,5a b ∴=-=.<<,67∴<<.6c ∴=.3,5,6a b c ∴=-==.(2)当3,5,6a b c =-==时,()99223561622a b c -+=⨯--+⨯=.∴其平方根为4=±.【点睛】本题考查了立方根,平方根,无理数的估算.正确把握相关定义是解题的关键.47.计算下列各题:(1+(2)7π--,(3(21+--+.【答案】(1)118;(2)π-;(3)8.【解析】【分析】(1)先计算算术平方根、立方根,再计算有理数的加减即可得;(2)先化简绝对值、计算算术平方根,再计算实数的加减即可得;(3)先计算算术平方根、化简绝对值、立方根、实数的平方,再计算实数的加减即可得.【详解】解:(1)原式14(3)2+-+=-11143228=--++,118=;(2)原式(7π=--,77π=,π=-;(3)原式)125=+-+,613=+,8=.【点睛】本题考查了算术平方根与立方根、实数的加减运算、化简绝对值,熟练掌握各运算法则是解题关键.培优练48.先阅读,然后解答提出的问题:设a,b是有理数,且满足a b=3﹣,求b a的值.解:由题意得(a﹣3)+(b+2=0,因为a,b都是有理数,所以a﹣3,b+2也是有理数,是无理数,所以a﹣3=0,b+2=0,所以a=3,b=﹣2,所以b a=(﹣2)3=﹣8.问题:设x,y都是有理数,且满足x2﹣2y x+y的值.【答案】8或0.【解析】【分析】根据所给信息,先移项,然后将有理数和无理数分组,从而可得(x2-2y-8)y-4)=0,结合所给信息即可得出x、y的值,代入代数式即可得出答案.【详解】解:移项得(x2-2y-8)+(y-4,∴y-4=0,x2-2y-8=0∴y=4,x=±4,故x+y=8或0.【点睛】本题考查了实数的运算,解答本题的关键是仔细审题,得到题目所给的解题思路,然后套用这个思路解题,正确理解题意、熟练掌握实数的性质是关键.。

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• 英特尔®未来教育项目致力于帮助教师超越课堂的藩 篱,拓展自身创造力,并进而发展学生的创造力。
• 哪个主题你最有兴趣? 为什么? • 哪个主题对你最有挑战性?为什么?
• 结合自己的情况和需要,思考:我参加“英 特尔®未来教育”核心课程要达到的目标。 • 可以在个人博客中写出自己的想法。
思考自己作为课程设计者的角色:
• 思考:为什么要把自己作为课程的设计者? • 培训成果:带着单元作品集回到学校。 回答下列问题: • 什么是单元? • 什么是单元作品集?
活动3 准备工作
• 第三步: 创建作品集文件夹
– 作品集文件夹用来保存整个培训期间有关的文 件 – 为了今后查询方便,请按统一的命名规则建立 文件夹(见教材模块1-11页上的示意图) – 文件夹按要求建立在本地计算机指定的盘符下 – 注意:不要建在其它的盘下,否则关机后会丢 失。
活动3 准备工作
unit_support
(支持材料)
evaluation_tools (评价工具) unit_plan (单元计划) student_support (学生支持材料) teacher_support (教师支持材料)
用模块1-12页作品集自查表,检查、记录 您的工作。 • 每完成一个部分,就在1-12页相应的表格上打 一个钩“√”。 • 每建立一个文件,把文件名填写在1-13页相应 的栏内。 • 注意使用恰当的文件名。
项目文件夹参照示意图
• 学校名称_姓名 _培训号
(用拼音缩写)
copyright_permissions (版权许可) images_sounds (图片声音) student_samples (学生样品) student_presentation (学生演示文稿) student_web_site (学生网站)
• 初步思考:什么是基于项目的学习?
浏览单元作品集评价量规
• 在开始工作前,审视项目的评价量规对沟通 和阐明期望是非常有价值的。浏览单元作品 集评价量规中列出的评价指标,有助于理解 本课程对你的单元作品集的期望。 • 阅读:单元作品集评价量规 • 思考:对照作品集评价量规,你打算给自己 的作品集确定什么目标?
活动4 开始行动
• 第一步:浏览单元计划模板,并把它存入自己的单元 作品集文件夹中
– 浏览配套光盘的module_01\activity 4\单元计划模板 – 方法:
• 依次单击“开始”、“程序”、“Microsoft Office”、 “ Microsoft Office Word 2003” 打开字处理软件Word • 单击菜单栏中的“文件”、“打开” • 在“查找范围”内,找到光盘、文件夹Module_01\activity 4 • 选中文件“单元计划模板” • 单击“打开”
–注意:在模块1-7页上记下登录名和密码 –注册后,请检查个人信息 –建议:公开你的有关信息
–注册后你就自动拥有了一个博客空间
活动3 准备工作
• 第二步: 在收藏夹中添加网站 地址
– 常用网站的网址可以添加到IE的收 藏夹中,以方便以后的访问。 – 还可以在收藏夹中建立一个专用 的文件夹,以便分类存放各种常 用的网址。
活动1
介绍“英特尔®未来教育”项目 培训要求
• 参加全部培训活动,积极参与课堂活动, 认真完成回家作业。 • 完成一个融合了技术的单元作品集。 • 参加关于本次培训的在线评估。 • 在下一学年中履行各项后续评估。
活动2 互相认识
• 自由活动结识班级的学习伙伴
–利用教材1-6页上的表格,搜集班级内学习伙伴的信息。
活动1
介绍“英特尔®未来教育”项目
• 最终的成果检验 –之所以开发“英特尔®未来教育”这个项 目,是因为我们相信在学生学习中起重要 作用的是教师,而不是计算机。教师们所 需要的不仅仅是理论,还需要实践层面上 的训练,以便能真正在课堂中有效地使用 计算机。这个项目正是为了响应教师们的 此类要求而开发的,并会根据你们的反馈 不断改进。
研究什么是好的教学设计
• 主要内容:
• 第一步,查看一些有关 ‘项目学习’ 的研究。 • 第二步,考虑你的单元的课程设计过程,浏览单元作 品集评价量规,修改自己在本课程培训中的目标。
什么是基于项目的学习
• 基于项目的学习是一种以学生为中心的教 学模式。这种学习通过能推动‘学生探究’ 的拓展任务和‘真实’性的学习产品和表 现来开发内容领域知识和技能。基于项目 的课程是由几个重要问题组成的,这些问 题将内容标准和高级思维与真实世界情境 紧密联系在一起。 • 阅读实例:从资源大省到经济大省 • 项目设计是未来教育有效实施的关键
活动1
介绍“英特尔®未来教育”项目
单元作品集的内容
• 一个学习目标与教学大纲或课程标准相适应的单元 计划 • 学生范例(演示文稿和网站) • 评价工具(演示文稿和网站的评价工具) • 支持单元的教师演示文稿或网站 • 支持单元的讲义、模板或试卷 • 一个单元实施计划 • 课堂管理文档 • 作品引用记录
• 展现您的交际能力,培养团队精神 • 想一想:谁能帮助您?您愿意与谁合作? • 考虑教材1-5页上的两个问题:
–除主讲教师外,还有谁能帮助您: –您能与哪些学友合作?
活动3 准备工作 • 第一步: 在线注册 请访问/rta,进 入到英特尔®未来教育培训在线管理系 统的主页面。在首次登录前,必须先 进行“学员注册”。
如何培养学生21世纪技能?
• 阅读两个案例:
• 案例1:魏老师所教的初中二年级学生营养课 • 案例2:陈老师所教的初中二年级学生营养课
• 小组讨论:
• 这两个案例分别培养、支持并鼓励了哪些21世纪技能? • 教师采用了什么方式培养学生的21世纪技能?
– 全班交流。
设定自己参加本课程培训的目标
• 阅读“课程目录”,针对所要学习的内容, 思考自己想要特别关注哪些主题的学习。 • 和小组成员面对面地进行讨论。
• • • • • • • • • 怎么看待金融危机? 怎么评价范跑跑现象? 如何对待高中文理分科? 桌子上摆着两根火柴,怎么用这两根火柴搭桥? 一个圆,不用公式,怎么求出它的面积? 蛋炒饭怎么做? 谈谈对身边同学的印象。 成长过程中遇到过哪些挫折?如何解决? ......
• “另类”的高校的自主招生考试,“雷”到 的不仅是部分参考的学生和家长,还有应试 教育的陈规陋习。 • 在这样的考查测试中,高校会更加注重学生 的创新素质和综合能力。这些具有创新性的 考题从客观上促进了学生思维的开放性拓展 ,在多元的考核标准中独立发展。
思考与讨论
– 什么是框架问题? – 什么是单元概述? – 单元概述与框架问题有何联系?
活动5
设计有层次的问题
• 参看附录-4布鲁姆教育目标分类 • 依据例子设计问题,按要求将模块1-19的 “教育创新”中的空格填写完整。 • 你还可以观看布鲁姆教育目标分类法问题 设计举例和进行这方面的练习
问题的设计要从提高 学生的综合能力入手
通向理解之门
• 用什么类型的问题来引导教学,并让学 生致力于揭示处于各学科核心位置的重 要概念呢?
– 这些问题必须能够揭示学科内涵的丰富性和 复杂性; – 这些问题必须是直接指向学科的核心思想和 关键探究; – 这些问题不可能用一两句话就讲得清楚; – ……
关于框架问题
• 框架问题是用于框定单元学习范围,并引导 学生深入学习于探索的一组问题; • 通过框架问题的提出,学习被置于复杂的、 有意义的问题情景中; • 用于引导一个单元的学习,包括: “内容问 题”、“单元问题”和“基本问题”
新课改的课程目标
• 初步形成正确的人生观、价值观和世界观,具 有民族精神和国际视野、民主与法制意识和社 会责任感;具有适应终身学习的基础知识、基 本技能和学习策略;具有初步的创新精神、实 践能力和可持续发展能力;具有基本的人文素 养和科学素养;具有健康的个性和良好的身心 素质,养成健康的审美情趣和生活方式,成为 有理想、有道德有文化、有纪律的公民。 • 思考:课程目标与21世纪技能的关系?
框架问题是有层次的
•最大
•基本问题
•概念是重要的
•单元问题
•更大
•属于哪类问题 倒并不一定是 最重要的。
•基本
•内容问题
关于内容问题
• 内容问题是指向事实性知识与基础性技能的问题; 其特点是: • 直接支持学习内容; • 大多涉及的是事实而不是对事实的解释; • 都有明确的答案; • 用于丰富学科内容,从而帮助学生对增强和发展 对更大问题的理解; • 可以参考课程标准直接提出
– 将该模板另存(按Ctrl+S)到您自己的单元作品集文件夹的 “unit_support\Unit_plan”中,并将文件名改为单元计划
活动4
开始行动
• 第二步:观看“英特尔®未来教育”作品集量 规
– 浏览配套光盘上的未来教育评价量规 “module_01\activity 4\Activity4” (方法同第一步) – 或教材1-17 页上的作品集评价量规(中文) – 思考:您将使您的教学单元计划达到单元作品集量 规的什么要求。
看高校自主招生
• 从09年元旦起至元月中下旬,北大、清 华、复旦、四川大学、西南交大等诸多名 校纷纷在展开自主招生测试,高校各具特 色的试题渐渐浮出水面,其间频频出现的 新奇考题也成为人们关注和议论的焦点, 一道道别具匠心的试题,反映了高校选拔 学生的独特思路,也冲击着根深蒂固的“ 应试教育”。
看复旦大学自主招生面试提问问题
活动6 了解框架问题
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