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英语名著阅读 七年级 格林童话选练习题(连云港赣榆区,无答案)

英语名著阅读  七年级 格林童话选练习题(连云港赣榆区,无答案)

Little Red Riding HoodⅠAre these sentences correct? Write "T" for true and "F" for false. 1.As she walked through the forest, Little Red Riding Hood met a wood cutter.2.The wood cutter cut open Mr. Wolf.3. Mr Wolf died in the story.4.The little girl was walking with her old er brother.5.Mr Wolf ran to Grandmother’s house.Ⅱ.Choose the best answer.1. How did Little Red Riding Hood get her nickname?a. She was little.b. She had red skin.c. She liked to rid e ponies.d. She wore a red hood.2. Where was Little Red Riding Hood going when she met Mr Wolf?a. She was going home.b. She was going to the market.c. She was going to Grandmother’s house.d. She was going to school.3. What did Mr. Wolf d o to Grandmother?a. He gave her cakes.b. He ate her.c. He danced with her.d. He tickl ed her.4. How did Mr. Wolf die?a. Little Red Riding Hood poisoned him.b. The wood cutter shot him.c. The wood cutter fill ed his belly with stones.d. Grandmother hit him in the nose.Snow White and the Seven DwarfsChapter 1 The Dwarfs’ HouseⅠAre these sentences correct? Write "T" for true and "F” for false. 1.One day, the queen said to one of her guards, "Take thisgirl into the forest and kill her."2. When the sun went d own, seven dwarfs came into the little house.3. Snow White walked and walked until she came to a little house.4. Once upon a time, there was a queen with a beautiful daughter call ed Cind erella.1 / 45. The new queen hated her stepdaughter because the girlwas very mean.Ⅱ.Choose the best answer.1. What happened to Snow White’s mother?a. She ran away.b. She got sick.C. She died.d. She became evil.2. Why did the new queen hate Snow White?a.Snow White was bad.b. Snow White was very beautiful.c, Snow White was too noisy.d. Snow White was not beautiful.3. Why didn’t the guard kill Snow White?a. He was a good man.b. He didn’t have a knife.c. The dwarfs stopped him.d. Snow White ran away.4. What did snow white find in the forest?a. A castle.b. A farm.c. A schoolhouse.d. A small house.Chapter 2 The Queen’s TrickⅠ. Put the sentences in ord er from 1(first) to 5(last).1.Snow White bit into the appl e and immediately fell d own.2.The queen fill ed some appl es with poison.3.Snow White went home with the prince and married him.4.The queen pretend ed to be a farmer’s wife and went to the little house in the forest.5.When the seven dwarfs came home, they found Snow Whited ead on the fl oor.Ⅱ.Choose the best answer.1. The dwarfs tol d Snow White not to l et anyone into the house because .a. they were afraid of thieves.b, they were afraid of the queen.C. animals might get into the house.d. the house might get col d.2. The queen dressed up as a farmer’s wife to .a, fool Snow White.b fool the dwarfs.c. fool the farm.d. fool the guard.3. The queen gave Snow White a poisoned .a. banana.b. grape.c. tomato.d. apple.4. What happened when the servants moved the coffin?a. They dropped it.b. It broken.c. Snow White woke up.d. The queen appeared.BearskinChapter 1 The Devil and the Sol dierI .Are these sentences correct? Write "T" for true and "F" for false.1. During the fifth year, the sol dier met an old man.2. When the sol dier turned around, a bear was running toward him.3. At the end of the first year, the sol dier smell ed bad, but he did2 / 4not l ook ugly.4. A rich soldier was walking along the road when he met the Devil.5. The ol d man was very grateful. "Come home with me, "he said. Ⅱ. Choose the best answer.1. Where was the sol dier going when he met the Devil?a. Home.b. To meet the king.c. We d on’t know.d. Back to school2. What was the animal that the sol dier shot and kill ed?a. An elephant.b. A horse.c. A lion.d. A bear.3.The Devil promised to make the sol dier .a. rich.b. smart.c. handsome.d. powerful.4. What can the sol dier d o for seven years?a. Wash.b. Cut his hair.c. Cut off his beardd. Speak.Chapter 2 The Merchant’s DaughtersⅠ. Put the sentences in ord er from 1(first) to 5(last).1. The sol dier showed the youngest daughter his half of the ring.2.The sol dier married the merchant’s youngest daughter, and they lived happily ever after.3. The Devil was angry, but he kept his promise.4. At last, the seven years were over, and the Devil came to the sol dier.5. Later that day, the soldier went to the merch ant’s house.ⅡChoose the best answer.1. The merchant had daughters.a. one.b. two.c. three.d, four2.The daughter promised to marry the sol dier.a. ol d est.b. second ol d est.c. mid dl e.d. younger.3. The sol dier cut a in half and gave one piece to the daughter.a. coin.b. ring.c. bracelet.d. necklace.4. The Devil was but kept his promise.a. angry.b. happy.c. sad.d. l onely.RapunzelⅠ.Are these sentences correct? Write "T" for true and "F" for false.1. The years passed, and the coupl e had several babies.2. The coupl e promised to give their child to the witch.3. The prince found Rapunzel in the d esert.4. Many years ago, there was a married coupl e who wanted to have achild.3 / 45. A year after her marriage, Rapunzel died.Ⅱ. Choose the best answer.1. The woman was unhappy because the coupl e had no .a, moneyb. childrenc. foodd. home2. The wife liked to eat .a. appl esb. potatoesc. rampiond. carrots3. They promised to give the witch .a. moneyb. gol dc. their childd. food4. The witch sent Rapunzel to live in the .a. d esertb. forestc. mountainsd. swamp4 / 4。

贸易术语练习习题(单选无答案,其他有答案)

贸易术语练习习题(单选无答案,其他有答案)

2.某进出口公司以CIF汉堡向英国某客 商出售供应圣诞节的应节杏仁一批,由 于该商品的季节性较强,买卖双方在合 同中规定:买方须于9月底以前将信用证 开抵卖方,卖方不迟于12月5日将货物交 付买方,否则,买方有权撤销合同。如 卖方已结汇,卖方须将货款退还买方。 问:该合同是否还属于CIF合同,为什么?
(二)多项选择题
1.贸易术语的性质是( )。 A.表示交货条件 B.表示成交价格的构成因素 C.表示付款条件 D.表示运输条件 2.有关贸易术语的国际贸易惯例有( )。 A.《2000年通则》 B.《1932年华沙一牛津规则》 C.《1941年美国对外贸易定义修订本》 D.《汉堡规则》
3 .在使用集装箱海运的出口贸易中,卖方采用 FCA贸易术语比采用FOB贸易术语更为有利的 具体表现是( )。 A.可以提前转移风险 B.可以提早取得运输单据 C.可以提早交单结汇,提高资金的周转率 D.可以减少卖方的风险责任 4.FOB、CFR、CIF和FCA、CPT、CIP术语 的主要区别是( )。 A.适用的运输方式不同 B.风险转移的地点 不同 C.装卸费用的负担不同 D.运输单据不同
2.就卖方承担的费用而言,正确的是( A FOB > CFR > CIF B FOB >CIF >CFR C CIF > CFR >FOB D CIF >FOB > CFR

3.按照C组贸易术语成交,货物起运后的风险 由( )负担。 A 卖方 B 买方 C 承运方 D 保险公司 4.从交货方式上看,CIF是一种典型的象征性 交货,此语的含义为( )。 A.卖方以态度明确的函电表示交货 B.卖方以提交全套合格单据来履行交货义务 C.卖方无须实际准备足货,只要少量样品即 可代表 D.买方对不符合合同要求的货物,只要单据 合格,无权索赔

保税物流货物报关课程练习题--无答案

保税物流货物报关课程练习题--无答案

保税物流货物报关课程练习题一、判断题1、申请建立保税仓库,除了要求具有专门储存、堆放进口货物的安全设施,建立、健全的仓库管理制度和详细的仓储帐册、配备经海关培训认可的专职管理人员外,保税仓库的经理人还应具备向海关缴纳税款的能力。

2、某保税仓库进口仓库内部管理用计算机、堆放货物的货架及在保税仓库内使用搬运货物的叉车,按照规定,进口这些物资可以申请办理保税手续。

3、某保税仓库进口仓库管理用计算机、堆放货物的货架及搬运货物的叉车。

按照规定,进口这些物资可予以免税。

4、企业设立保税仓库应向仓库所在地主管海关提交书面申请,主管海关报直属海关审批,直属海关批准设立保税仓库后报海关总署备案。

5、公用保税仓库由主营仓储业务的中国境内独立企业法人经营,专门向社会提供保税仓储服务,其面积最低为2000平方米。

6、从非保税区运入保税区的供加工生产产品用的货物,属于应税出口商品的,应缴纳出口关税。

7、物流园区与境外之间进出货物,除园区自用的免税进口货物、国际中转货物或者法律、行政法规另有规定的货物以外,海关实行备案制管理。

8、出口监管仓库存放的货物,是办结出口海关手续的货物,所以只能装运出口,不可以出仓复进口。

9、保税仓库可以存放未办结海关手续的进口货物,不能存放已办结出口海关手续的出口货物二、单选题1、保税区须经()批准建立A、海关总署B、国务院C、省级人民政府D、直属海关2、保税区与境外之间进出的货物,属于自用的,采用(),填写()A、备案制,进出境备案清单B、报关制,进出境报关单C、备案制,进出口报关单D、以上答案都不对3、天津商业保税仓库存放一批冷压薄板。

1998年4月5日已经存放满1年,仍未能转为进口或退运出口,企业要求延长该批保税货物存放期限,根据上述情况海关批准延长期不能超过:A.1998年5月5日B.1998年7月5日C.1998年10月5日D.1999年4月5日4、一批转口的货物于2003年6月1日进入某保税仓库储存,到2004年5月底因故没有出库,经海关批准延期3个月,但到期仍未出库。

无人机飞行原理与性能解答练习题II 无答案

无人机飞行原理与性能解答练习题II 无答案

.1.关于动压和静压的方向,以下哪一个是正确的()A.动压和静压的方向都是与运动的方向一致B.动压和静压都作用在任意方向C.动压作用在流体的流动方向,静压作用在任意方向2.流体的伯努利定理()A.适用于不可压缩的理想流体B.适用于粘性的理想流体C.适用于不可压缩的粘性流体3.伯努利方程适用于()A.低速气流B.高速气流C.适用于各种速度的气流4.下列关于动压的哪种说法是正确的()A.总压与静压之和B.总压与静压之差C.动压和速度成正比5.测量机翼的翼弦是从()A.左翼尖到右翼尖B.机身中心线到翼尖C.机翼前缘到后缘6.测量机翼的翼展是从()A.左翼尖到右翼尖B.机身中心线到翼尖C.机翼前缘到后缘7.机翼的安装角是()A.翼弦与相对气流速度的夹角B.翼弦与机身纵轴之间所夹锐角C.翼弦与水平面之间所夹的锐角8.机翼的展弦比是()A.展长与机翼最大厚度之比B.展长与翼尖弦长之比C.展长与平均几何弦长之比9.机翼1/4弦线与垂直机身中心线的直线之间的夹角称为机翼的()A.安装角B.上反角C.后掠角10.翼型的最大厚度与弦长的比值称为()A.相对弯度B.相对厚度C.最大弯度11.翼型的最大弯度与弦长的比值称为()A.相对弯度B.相对厚度.C.最大厚度12.影响翼型性能的最主要的参数是()A.前缘和后缘B.翼型的厚度和弯度C.弯度和前缘13.具有后掠角的飞机有侧滑角时,会产生()A.滚转力矩B.俯仰力矩C.不产生任何力矩14.具有上反角的飞机有侧滑角时,会产生()A.偏航力矩B.俯仰力矩C.不产生任何力矩15.机翼空气动力受力最大的是()A.机翼上表面压力B.机翼下表面压力C.机翼上表面负压16.当迎角达到临界迎角时()A.升力突然大大增加,而阻力迅速减小B.升力突然大大降低,而阻力迅速增加C.升力和阻力同时大大增加17.对于非对称翼型的零升迎角是()A.一个小的正迎角B.一个小的负迎角C.失速迎角18.飞机飞行中,机翼升力等于零时的迎角称为()A.零升迎角B.失速迎角C零迎角19.失速”指的是()A.飞机失去速度B.飞机速度太快C.飞机以大于临界迎角飞行20.“失速迎角”就是“临界迎角”,指的是()A.飞机飞的最高时的迎角B.飞机飞的最快时的迎角C.飞机升力系数最大时的迎角21.飞机上的总空气动力的作用线与飞机纵轴的交点称为()A.全机重心B.全机的压力中心C.机体坐标的原点22.飞机升力的大小与空气密度的关系是()A.空气密度成正比B.空气密度无关C.空气密度成反比23.飞机升力的大小与空速的关系是()A.与空速成正比B.与空速无关C.与空速的平方成正比24.机翼升力系数与哪些因素有关()A.仅与翼剖面形状有关B.与翼剖面形状和攻角有关C.仅与攻角有关25.飞机在飞行时,升力方向是()A.与相对气流速度垂直B.与地面垂直C.与翼弦垂直26.飞机在平飞时.载重量越大其失速速度()A.越大B.角愈大C.与重量无关27.机翼的弦线与相对气流速度之间的夹角称为()A.机翼的安装角B.机翼的上反角C.迎角28.当飞机减小速度水平飞行时()A.增大迎角以提高升力B.减小迎角以减小阻力C.保持迎角不变以防止失速29.机翼的压力中心()A.迎角改变时升力增量作用线与翼弦的交点B.翼弦与机翼空气动力作用线的交点C.翼弦与最大厚度线的交点30.为了飞行安全,飞机飞行时的升力系数和迎角一般为()A.最大升力系数和临界迎角最大B.最大升力系数和小于临界迎角的迎角限定值C.小于最大升力系数和临界迎角的两个限定值31.增大翼型最大升力系数的两个因数是()A.厚度和机翼面积B.弯度和翼展C.厚度和弯度32.对一般翼型来说,下列说法中.哪个是正确的()A.当迎角为零时,升力不为零B.当翼剖面有一个正迎角时,上翼面处的流线比下翼面处的流线疏。

江苏省南通启秀中学八年级英语下册 Unit5 练习题 (无答案)

江苏省南通启秀中学八年级英语下册 Unit5 练习题 (无答案)

8B小题训练(Unit5)Class -Name一、选择填空(20×2=40分)1. Do you think the 2008 Beijing Olympic Games._______ great success?-----Yes________ most successful one in______ history.A a: The. / B. the: The, the C.a, /. / D. / The, the2-There is somebody at the door. Who________ it be? Is it the postman?.No. It ________be him. it's just seven even o'clock. It's too early.A.may;mustn’t B will;won’t C. may, can’t D. must, may not3-I heard that you____________the running race?------Yes, but I only finished_____________A. joined, fourthB. took part in; fourthC. took part in; fourD. joined, four4. How many tips did Jim offer on the talk about manners ?-----____________.He said____________A Nothing;nothingB None ;nothing C.Nothing none D. None.none5. --We should give the elderly there as much help as we can.-I agree.______________ we should keep in touch with them as often as we can.A. After allB. Above allC. In allD. At all6. -Is your father in? ..No, he.___________________for three hours.A.was outB. has gone outC. went outD.has been out7. "The grass is always greener on the other side. "means_________other people have Always____ _better than your own.A. what, seemsB. that, seemC. that, seemsD. what, seem8.--_________turn is it to make our daily speech today?---It's time for me to speak today, Mrs Lin.A. WhatB.WhoseC.WhichD.Where9. I have spent___________on this job. I think I can finish it _______ this afternoonA.sometime;sometimeB. sometimes; some timeC. some times: sometimeD. some time;sometime10.China is getting better and better at making high technology products.--That's right. People around the world can hardly avoid___________ products made in China.A.buyingB. not to buyC. to buyD. not buying11. There was big stone_______my way_________ my way home yesterday.A. at; byB.in;byC. on; inD.in;on12. This exercise is___________difficult_______________________.A. so; that few of us can doB. so; that many of us can doC. too; for any one of us to do itD. too; for any one of us to do13. The tent is for ______________a family of three___________________.A.big enough: to live inB. enough big: to live in itC. big enough: to liveD. enough big: live in14.-What a rain! -It has rained since last night..A.heavily ;heavy. B. hardly;hardC.heavy. heavilyD. hard;hardly15. Why not leave the door_____________? I think the air in the room smells bad.A. openingB. openC. openedD. to open16.-He's back from Japan,__________?-------___________He is on a visit to Beijing nowA. isn't he; NoB.hasn't he; YesC.isn't he; YesD. hasn't he;No17.--What a heavy rain! Will it last long?------_____________We're getting into the rainy season.A. Of course not. B I'm afraid so C. That's impossible D. I'm afraid not18.You'd better fix the machine____ I have told you. Otherwise, you may make more problems.A. likeB.withC.asD. follow19.--Why does Joe feel so unhappy?-She failed the exam and she has no friends_____________A.talkingB. to talk withC. to talkD. talking with20. Tom's mother is too busy _housework him with his homework.A. doing; helpingB.to do;to helpC. doing; to helpD. to do;helping二、根据句意、中英提示完成下列句子:(6×1=6分)1. She ____________(冒险)her own life to help this old man out of a big fire last week.2. We have decided to go to England for visit the coming summer holiday. But how dousually start __________(a small talk)with the local people in the UK, can you tell us?3. I did everything possible carefully for you in order to help you ____________ (try not to do sth)making the same mistake.4. Mr. Lin spent about 10 minutes_____________the long sentence to us and at last we all understood it.5. What's the ___________( right or correct)way to greet people in the UK?6.--How______________(礼貌) British people behave in public ---Exactly, they do.三、选用方框中所给词的适当形式填空:(6x1=6分)two they excite discuss relax close1. Reading some interesting books and doing some exercise can help us feel ______________.2. Lily and Lucy are working much harder than before to improve_________________.3. After a long______________.we decided to have school trip next month.4. The more communication we have, the_______________ we feel.5. His jacket looked just the same as mine, but it cost _____________as much as mine.6. The fans screamed _________________ when they saw their favourite film stars.四、选用方框内所给动词的适当形式填空:(6×1分clean eat wait smell not stop study1.--Have you left, the college?-Yes. I____________ in the college for four years, and now om an engineer of a big company2. --Listen, they are talking loudly. --Don't worry, they__________talking until the film starts.3.________ your mum still _______windows? No, she finished the work two hours ago.4.--I didn't see you at the meeting yesterday. Why?--- -Because I ____________for an old friend from the USA.5. They ______________all the food, but they still feel hungry6. How nice the cake on the table_____________- But I can't' eat it because have to lose weight.五、句型转换:(12*1=12分)1. He greeted his wife with kise on her face.(改为同义句)He greeted his wife _____________ _____________ her face.2 They succeeded in improving the situation last year. .(改为同义句)They__________ ____________improve the situation last year improve the situation last year.3. Peter was so slow that he couldn’t catch up with the train.(改为简单句)Peter wasn’t__________ ____________that he couldn't' catch up with the train.4. She is such a brave girl that she can play with the snake.(保持句意不变)She is __________ ____________ to play with the snake.5.Mrs. Wang is our good teacher and she is also our good friend(两句合并一句)Mrs. Wang is our good teacher___________ ____________as our good friend6. We read a story book this morning, but we all felt bored after reading it.(改为同义句)We found__________ __________to read such a story book this morningad such a story book this morning六、短文填空子(10*2=20分)New rules and behavior standards (行为规范)for middle school students came out in March. Middle school is going to use a new way to d____________(1)who the top students are. The best students won’t only have high marks. They will also be kids who don’t dye (染) their hair, smoke or drink. The f____________(2) are some of the new rules.Tell the truth. Have you ever copied someone e____________(3) work on an exam? Don’t do it again! That’s not something an____________(4) student should do. If you have played computer games for two hours in your room, don’t tell your parents you have done homework.Do more at school. Good students love animals and care for other people. April is Bird-loving Month in China. Is your school doing anything to celebrate? You should j____________(5) in it ! That way, you can learn more about animals and how to protect them. When more people work together, it makes it more fun for everyone.Have you ever quarreled with your teammates when our basketball lost? Only working together can make your team stronger. Be friendly to the people you are with. Try to think of others, not only yourself.Be o____________(6) to new ideas. Have you ever thought that people could live on the moon? Maybe you’ll discover Earth Ⅱ someday. Don’t look down on new ideas. Everyone’s ideas are important. You should w____________(7)them, because new ideas make life b____________(8)for everyone.P____________(9) yourself. Has someone ever taken money from one of your classmates? Don’t let it h____________(10) to you. If you have to go home late you should let your parents know it.七、任务型阅读Scientists find that hard-working people can live longer than idle (不工作的) people. Career women are healthier than housewives. Evidence shows that the jobless are in poorer health than the job-holder. A report shows that whenever the unemployment rate (失业率) increases by 1%, the death rate increases by 2%. All this comes down to one point: work is helpful to health.Why is work good for health? It is because work keeps people busy, away from loneliness. Researches show that people feel unhappy, worried when they have nothing to do. Instead, the happiest are those who are busy. Many high achievers who love their careers feel that they are happiest when they are working hard. Work serves as a bridge between man and reality (现实). By work, people come into contact with each other. By taking part in some activities, they find friendship and warmth. This is helpful to health. The loss of work means the loss of everything. It affects man in spirit and makes him easy to get ill.Besides, work gives one a sense of fulfillment (充实感) and a sense of achievement. Work makes one feel his value in society. When a writer finishes his writing or a doctor successfully operates on a patient or a teacher sees his students grow, they are happy beyond words.From the above we can come to the conclusion that the more you work, the happier and healthier you will be. Let us work hard and study well and live a happy and healthy life.1. Who can live longer, hard-working people or idle people?2. How do people feel when they don't have anything to do?3. How can we find friendship and warmth in our daily life?4. Why can career women be healthier than housewives? (请根据文章内容,自拟1句话作答)5. What do you think hard work can bring us? (请根据自己的想法,自拟1-2句话作答)。

新概念英语第一册Lesson 29-30练习题(无答案)

新概念英语第一册Lesson 29-30练习题(无答案)

Lesson 29 and Lesson 30一根据汉语提示完成句子(10分)1. 进来。

in.2. 关门。

the .3. 这个卧室非常乱。

This is very .4. Amy 应该做什么?What Amy ?5. 打开窗户并且给房间通风。

the window and the room.6. 你应该把这些衣服放在大衣柜里。

You must these clothes in the . 7. 然后铺床。

the bed.8. 掸掉梳妆台的灰尘。

the dressing table.9. 我必须扫地吗?I the floor?10. 不要关掉水龙头。

off the .二用所给词的适当形式填空(10分)1. You must (sharp) these knives. They are very blunt.2. The box is full. Please (empty) it.3. not (clean) the refrigerator.4. This bedroom is not clean. It is very (tidy).5. Put these (cloth) in the wardrobe.6. A (read) often reads newspapers and magazines.7. There are some (fork) on shelf.8. Are there (some) bottles in the refrigerator?9. Mrs. Smith’s (live) room is large.10. Sharpen (this) pencils.三说明下列划线单词的词性和汉意。

(10分)1. These knives are sharp.词性汉意2. You must sharpen these pencils.词性汉意3. The bottle is empty.词性汉意4. The bedroom is clean.词性汉意5. Please clean the dirty car.词性汉意6. The School is shut today.词性汉意7. Don’t shut the door.词性汉意8. The window is open.词性汉意9. Please open the window.词性汉意10. The air today is nice and clean.词性汉意四根据句意填空(10分)1. It’s cold out there. Please come .2. The door is open. Please it.3. This room is very untidy. You must it.4. must I do ? You must clean the room.5. must Amy put these clothes? In the wardrobe.6. There is too much dust on the dressing table. You must it.7. Don’t put on your tie. Please take it .8. Who can the basket? It is full.9. This pencil is blunt. You must it10. You must turn off the . There’s water everywhere.五选择填空(10分)( ) 1 .The door is open. You must it.A. openB. shutC. opensD. shuts ( ) 2. Don’t put on this watch .A. Take off itB. Take it offC. Put it onD. Put on it ( ) 3. Please put your coatA. atB. inC. upD. on ( ) 4. Which is your cup? on the table.A .That B.This C. The D. The one ( ) 5. That’s nice car and colour is nice,too.A. a,itsB. a,it’sC. one,itD. an,its ( ) 6. What must Amy ?A. doB. doesC. doingD. to do ( ) 7. the window.A. Don’t openB. Not openC. Not shutD. opening ( ) 8. Make .A. a bedB. the bedC. a bed’sD. beds ( ) 9. clothes on the bed?A. Who,areB. Whose,areC. Whose isD. Who,is ( ) 10. Give your book him,please.A. inB. toC. atD. on六句型转换(10分)1. Come in. (变为否定句)in.2. Shut the door. (变为同义句)the door.3. This bedroom is tidy. (变为反义句)This bedroom is .4. You must air the room. (变为同义祈使句)the .5. Amy must put these clothes in the wardrobe. (就划线部分提问)Amy these clothes?6. He must sweep the floor. (变为一般疑问句)he the floor?7. We must make the bed. (就划线部分提问)We do?8. Amy must dust the dressing table. (变为否定句)Amy the dressing table.9. Turn on the tap. (变为同义句)Turn the tap.10. You mustn’t clean the refrigerator. (变为同义祈使句)the refrigerator.七补全对话(10分)Sam: Whose shoes are these? They look 1 yours,Billy.Bill: Let me see,please. 2 aren’t mine. They’re Mike’s.Sam: Are these 3 yours,Mike?Make: Oh, 4 .They aren’t 5 .Sam: Tom,are these shoes yours?Tom: Oh,no. 6 are blue. These shoes are black. They’re Lily’s.Sam: Lily,are these shoes 7 ?Lily: 8 ,they’re mine.Sam: 9 you are.Lily: 10 you.1. 2. 3. 4. 5.6. 7. 8. 9. 10.八完形填空(10分)1 morning I am on duty. I2 the teacher do some things. First I go to3 office to take a4 box5 our classroom. The box6 full of our newEnglish books. I give 7 books to every 8 . Then I put the 9 box 10 . The teacher comes and we are ready for classes.( ) 1.A. A B. This C. This is D. Today( ) 2. A. give B. let C. help D. want( ) 3. A. a teacher B. the teacher C. the teachers D. the teachers’( ) 4. A. heavy B. empty C. some D. light( ) 5. A. in B. at C. to D. of( ) 6. A. is B. are C. take D. carry( ) 7. A. the call B. all the C. every D. one( ) 8. A. student B. students C. the student D. a student ( ) 9. A. heavy B. full C. light D. empty( ) 10. A. after B. away C. on D. in九阅读理解(10分)My name is Wang Lin. I’m twelve. I’m a school girl. I have a nice watch. My father gives it to me. I go to school at seven o’clock every morning. I have six classes every day. After school I go and play games with my friends. At five o’clock,I go home. In the evening I do my homework. After that I watch TV. I go to bed at about ten in the evening.A 根据短文内容选择填空。

2020春 中考物理复习练习题 :压强 (无答案)

2020春 中考物理复习练习题 :压强 (无答案)

2020春人教版中考物理:压强习题(无答案)**复习:压强**(80%有答案)1、两块完全相同的砖块,如图所示叠放在水平地面上,砖块A立放砖块B平放,砖块的长、宽、高之比为4:2:1,若砖块A对砖块B的压力是FA,压强为pA;砖块B对地面的压力是FB,压强为pB,则()A.FA:FB=1:2;pA:pB=4:1B.FA:FB=1:2;pA:pB=2:1C.FA:FB=1:1;pA:pB=2:1D.FA:FB=1:1;pA:pB=4:12、一块重500牛、长2米、宽1米、厚0.2米的长方体物块,放在边长为0.5米的正方形水平桌面上,可以采取各种不同的放置方法,在各种不同的放置方法中物块对桌面的最小压强是()A.250帕B.500帕C.1000帕D.2000帕3、把一根盛有部分液体的竖直的玻璃管倾斜时,液体对管底的压强将( )A.变大B.不变C.变小D.无法确定4、假如一个人的表面积为1.5平方米,他受到的大气压力大约是()A.1.5×104N B.1.5×105N C.1.5×106N D.1500N5、昔日高档小轿车,今朝进入百姓家。

下列有关小轿车的说法正确的是()A. 司机驾车时系安全带可以减小惯性B. 轿车在水平路面加速行驶时,使轿车前进的力是路面施加的C. 轿车行驶时车体上方空气流速比下方大,故空气对小车向下的压强大于向上的压强D. 轿车设计成流线型,目的是为了增大行驶时对地面的摩擦力6、把同种材料制成的甲、乙两个正方体,放在水平桌面上,甲、乙对桌面的压强分别为P1和P2,如图所示,把甲、放在乙的上面,则乙对桌面的压强为()A.P 1+P2B.P12+P22C.D.7、深水炸弹是一种入水后下潜到一定深度自动爆炸的水中兵器,主要用于攻击潜艇。

对于其爆炸原理,下列说法正确的是( )A.与潜艇撞击而爆炸B.水是导体,可以接通电路,引发爆炸C.采用了定时爆炸系统D.炸弹在水中下潜越深,所受压强越大;炸弹在一定压强下才能自动爆炸8、某同学将燃着的酒精棉花放入广口瓶中,接着把熟鸡蛋放在瓶口,冷却后发现塞在瓶口的鸡蛋被地吞入瓶中(如图所示),下列关于该实验结果的解释正确的是()A.大气压变小B.乙瓶内的气压变小C.大气压变大D.乙瓶内的气压变大9、(多选)下列利用矿泉水瓶设计的实验,说法正确的是()A. 甲图,比较海绵形变程度,可研究压力的作用效果与压力的关系B. 乙图,比较三个孔水的喷射距离,可研究液体压强与深度的关系C. 丙图,通过盖在瓶口的硬纸片不掉落,可以证明大气压强的存在D. 丁图,吹气时两空瓶向中间靠拢,可研究流体压强与流速的关系10、练太极拳是很好的强身健体运动.图甲姿势换成图乙姿势时,人对水平地面的()A.压力变大,压强不变B.压力变大,压强变大C.压力不变,压强变大D.压力不变,压强变小11、一支两端开口的玻璃管下方扎有橡皮膜,当注入水时,橡皮膜向下凸出;将其放入一盛有某种液体的容器中,当管内外液面相平时,橡皮膜凹进管内。

部编版四年级语文上册 句子专项练习题 无答案

部编版四年级语文上册 句子专项练习题 无答案

四年级语文上册句子专项练习题1. 给下列各句排序。

()王红同学真值得我们学习。

()今天,老天爷一直紧绷着脸,阴沉沉的,好象跟谁生气似的。

()就在这个时候,我看见一个女同学飞快地朝操场奔去。

()天突然下起雨来。

()啊!那是三年级(4)班的王红。

()下午放学的时候,同学们背起书包正准备回家。

()原来,她是冒雨去降国旗的。

()红领巾在她胸前飘动,就像一束跳动的火苗。

2. 缩写句子。

①我的眼睛急切地寻找那本读过的书。

②广场上千万盏灯静静地照耀着天安门广场周围的宏伟建筑。

3. 按要求写句子。

(1)照样子,改写句子。

例:我下次再来非躲开四月不可!我下次再来一定要躲开四月!①你非把这碗饭吃了不可!②我非赢了这场比赛不可!③战士说,非把全部的敌人消灭不可!(2)修改病句。

①他从小养成了热爱劳动。

②这件事,不是小华做得不对,还是小芳做得不对。

③那嘹亮的歌声飘浮在田野上空。

4. 按要求改写句子。

(1)尽管这都还是偶然的发现,居里夫人却对此提出了新的思考。

(用划线的词语造句)(2)火箭划过一道绚丽的曲线,看起来宛若一条蜿蜒的苍龙。

(仿写句子)(3)如果没有老师的悉心教导,______。

(把句子补充完整)(4)他怎么能够这样来糊弄你们呢?(改为陈述句)5. 读对联,填空。

上联:鸟居笼中,望孔明想张飞无奈关羽下联:鱼离水面,置半山滚东坡如何陆游这副对联的上联包含了《三国演义》中的三位著名人物:诸葛亮、______、______;下联包含了宋代的三位著名文学家:王安石、______、______。

6. 给下列各句排序。

()找到字典“部首目录”那页。

从2画中找到“讠”,看看后面的页码。

()老师让我们用部首查字法查出“诚”字。

()再数一数除去部首还有6画。

()我翻到有“讠”的那一页,从6画中找到“诚”字,根据页码就可以查到“诚”字。

()我先确定“诚”的部首是“讠”,共2画。

7. 按要求写句子。

(1)她那美丽端庄的形象也就从此定格在历史上。

苏教版七年级上册数学2.5 有理数的加减法同步练习题 (无答案)

苏教版七年级上册数学2.5 有理数的加减法同步练习题 (无答案)

第一章有理数◆课题4 有理数的加法一、【知识梳理】1.有理数加法法则的探索:两个有理数相加,有多少种不同的情形?为此,我们来看一个大家熟悉的实际问题:足球比赛中赢球个数与输球个数是相反意义的量.若我们规定赢球为“正”,输球为“负”.比如,赢3球记为+3,输2球记为-2.学校足球队在一场比赛中的胜负可能有以下各种不同的情形:(1).上半场赢了3球,下半场赢了2球,那么全场共赢了5球.也就是(+3)+(+2)=+5.(2).上半场输了2球,下半场输了1球,那么全场共输了3球.也就是(-2)+(-1)=-3.(3).上半场赢了3球,下半场输了2球,全场赢了1球,也就是(+3)+(-2)=+1 (4).上半场输了3球,下半场赢了2球,全场输了1球,也就是(-3)+(+2)=-1 (5).上半场赢了3球下半场不输不赢,全场仍赢3球,也就是(+3)+0=+3;(6).上半场输了2球,下半场两队都没有进球,全场仍输2球,也就是(-2)+0=-2 (7).上半场赢了3球,下半场输了3球,全场是平局,也就是(+3)+(-3)=0 上面我们列出了两个有理数相加的7种不同情形,并根据它们的具体意义得出了它们相加的和.但是,要计算两个有理数相加所得的和,我们总不能一直用这种方法.现在我们大家仔细观察比较这7个算式,看能不能从这些算式中得到启发,想办法归纳出进行有理数加法的法则?也就是结果的符号怎么定?绝对值怎么算?这里,先让学生思考2~3分钟,再由学生自己归纳出有理数加法法则:2.有理数加法法则:5)=−8−4(因为->62,所以最后符号为“−”)3.“有理数加法”与小学里学过的数的加法有什么区别和联系?请算一算:①. (-9.18)+6.18= ;②. 6.18+(-9.18);③. [8+(-5)]+(-4)= ;④. 8+[(-5)+(-4)]= ;⑤.[(-7)+(-10)]+(-11)= ;⑥. (-7)+[(-10)+(-11)] .(1)有理数运算律:(1)交换律——两个有理数相加,交换加数的位置,和不变.用代数式表示上面一段+=+.话:a b b a这里的字母a,b表示任意两个有理数,可以是正数,也可以是负数或者零.在同一个式子中,同一个字母表示同一个数.(2)结合律——三个数相加,先把前两个数相加,或者先把后两个数相加,和不变.用代数式表示上面一段话:++=++.这里的字母a,b,c表示任意三个有理数.a b c a b c()()二、【典例精析】例1计算下列算式的结果:(口答)(1).(+4)+(+7)= ; (2).(-4)+(-7) = ;(3).(+4)+(-7) = ; (4).(+9)+(-4) = ;(5).(+4)+(-4) = ; (6).(+9)+(-2) = ;(7).(-9)+(+2) = ; (8).(-9)+0= ;例2.计算16+(-25)+24+(-32).(注意,怎样简便怎样计算)例3. 10袋小麦称重记录下,以每袋90千克为准,超过的千克数记作正数,不足的千克数记作负数.7,5,-4,6,4,3,-3,-2,8,1。

人教版必修一 Unit4 定语从句由浅入深练习试题 无答案

人教版必修一 Unit4 定语从句由浅入深练习试题 无答案

Unit4 Grammar-------定语从句1.用适当的关系代词填空1.We don’t know the number of people_________ lost their homes in the disaster.2.Those__________want to go to the English party must be at the school gate by 7:30 pm. 3.The first museum_______________he visited in China was the History Museum.4. The building __________________doors are green is an office building.5. The building_______________________wall is white is my uncle's house.6.I know the boy__________________________you are looking for.7.Will you please lend me the very book__________________you bought yesterday?8.The student____________________the teacher praised at the class meeting is our monitor. 9.The season____________________________________comes after spring is summer.10.This is the museum________________________________we visited last Saturday.11.My grandpa always tells me things and person___________she remembered when he was young. 12.This is the very man_________________________________gave me a hand last week.13. The house _____________________________ they built in 1987 stayed up in the earthquake.14. A house _______________________________ is built on sand may fall down in a earthquake.15. Harry is the boy _________________________________ mother is our maths teacher .16. Look at that lady _______________________________ name is Rose.17. The person to_____________________________________ you just talked is Mr. Li.18. He said he had gone abroad, ____________________is true.19.Tom worked in a factory, ____________________is new.20. We often communicate with Tom, __________is a great teacher.II.将下列句子合并成含有定语从句的复合句1.Do you know the bridge? It was built with stone.2.The boy is my brother.He was here a minute ago.3.The man is Mr Green.You saw him in the park.4.The woman looks like the singer.I’ve heard her songs on TV.5.There is a little girl at the gate. She is crying for her mother.III. 语法改错1. Under the big tree are 34 students, many of them come from class two.2. My mother has a good book, which cover looks terrible.3. Who are the young girls who are having dinner in the restaurant?4. She is one of the girls who is very interested in maths.5. Tom is the only one of the boys who like playing football.6. Tom passed the exam, that made his father happy.7.There is an old woman, that is holding a stick.IV.完成句子。

三年级上册数学试题-应用题每日练习 苏教版 (无答案)

三年级上册数学试题-应用题每日练习  苏教版  (无答案)

三年级上册应用题每日练习12月9日1.甲、乙两个小组的同学们要做一些花,两个小组都有4人。

甲小组每人要做25朵花,乙小组一共要做92朵花。

(1)两个小组一共要做多少朵花?(2)两个小组所有人平均每人要做多少朵花?2.工厂某车间有8名工人,他们一个星期(7天)加工了392个零件。

(1)他们平均每天加工多少个零件?(2)平均每个工人加工多少个零件?(3)平均每个工人每天加工多少个零件?1.书店有故事书和科技书一共524本,卖掉186本故事书后,故事书和科技书一样多。

书店原有故事书多少本?原有科技书多少本?2.停车场里有轿车和面包车一共359辆,又开进来71辆面包车后,轿车和面包车就一样多。

停车场里原有轿车多少辆?原有面包车多少辆?12月11日1.老师给三(2)班的学生每人发7颗糖果和3块巧克力,一共发了315颗糖果。

三(2)班有多少人?需要多少块巧克力?2.外国语学校每个教室里安装9组日光灯和4台电风扇,一共安装了288台电风扇。

(1)外国语学校一共有多少个教室?(2)一共安装了多少组日光灯?(3)外国语学校一共有4幢教学楼,平均每幢教学楼有多少个教室?1.小朋友们排成一排,从左往右数,小丽排在第5个;从右往左数,小丽排在第7个。

你知道这一排小朋友一共有多少个吗?2.20小朋友们排成一排,从左往右数,小明排在第6个;从右往左数,小刚排在第9个。

你知道小明和小刚中间一共有多少个小朋友吗?12月13日1.同学们参加团体操表演,方队每行的人数都相等,每列的人数也相等。

从前数,小芳排第3,;从后数排第5;从左数排第12;从右数排第18。

参加团体表演的一共有多少人?2.新华书店给刚到货的550本书做编号。

1~197号是故事书, 348~550号是科技书,剩下的都是漫画书。

你知道漫画书有多少本吗?1.在一块正方形草地四周植树,每边植20棵,每个顶点处各有一棵,每相邻两棵树之间的距离是6米。

(1)这块正方形草地四周一共植了多少棵树?(2)这块正方形草地的边长是多少米?周长呢?2.学校要在门口长735米马路的两边植树,每两棵树之间的距离是5米。

网络互连课后习题(无答案)

网络互连课后习题(无答案)

习题一一.选择题1.下列协议中,(C)协议使用了TCP及UDP端口。

A.ICMPB.SNMPC.DNSD.TELNET2.下列协议中,(B)协议同时使用了不只一个TCP端口。

A.TFTPB.FTPC.SNMPD.SMTP3.下列IEEE标准中,(C)是和千兆以太网有关的。

A.802.11B.802.3aeC.802.3zD.802.3u4.IEEE 802.11b WLAN 的最大数据传输速率是(A)。

A. 11Mb/sB.100Mb/sC.5Mb/sD.54Mb/s5.当执行MS-DOS命令ping的时候,用到了(AB)类型的ICMP数据包。

A. ICMP REQUESTB. ICMP REPL YC. ECHOD. ECHO REPL Y二.判断题(×)1.在OSI参考模型中,是靠会话层保证可靠地端到端传输的。

(×)2.TCP建立连接和断开连接均需要经过三次握手过程。

(×)3.同有线以太网一样,802.11标准也使用载波监听多路访问/冲突检测(CSMA/CD)技术。

(√)4.只有采用Infrastructure模式的WLAN通信模式需要设置SSID,Ad Hoc 模式则不需要。

(×)5.MS-DOS命令ping的输出结果中的TTL值代表执行ping命令的源主机发送原始ping 包的TTL值。

三.填空题1.OSI参考模型采用七层分层结构,包括__物理层_、数据链路层、网络层、传输层、会话层、表示层、应用层。

2.TCP/IP协议栈采用四层分层结构,包括主机到网络层、网络互连层、传输层、应用层。

3.常见的四种不同以太网帧格式包括Ethernet II、Ethernet 802.3 raw、Ethernet 802.3SAP、Ethernet 802.3SNAP。

4.传统的有线局域网及无线局域网采用的介质访问方法分别是载波监听多路访问碰撞检测(CSMA/CD)、载波监听多路访问/冲突避免(CSMA/CA)。

绿化工中级-练习一_真题-无答案

绿化工中级-练习一_真题-无答案

绿化工中级-练习一(总分239,考试时间90分钟)判断题1. 树木在一年中经历的生活周期称为生命周期。

( )A. 正确B. 错误2. 树木从播种经幼年、开花、衰老直至生命终止的全过程称为年周期。

( )A. 正确B. 错误3. 当树木生长和发育之间的协调失去平衡时,会出现过早结实或过旺生长的现象。

( )A. 正确B. 错误4. 树木由根颈向两端不断扩大其空间的生长叫离心生长。

( )A. 正确B. 错误5. 树木地上部分离心生长造成树木内膛环境条件恶化,枝干基部向枝端方向出现枯落的现象称为自疏。

( )A. 正确B. 错误6. 树木树冠的更新和枯死的发生一般是由内膛向冠外,由根颈至下部进行的,称为向心更新与向心枯死。

( )A. 正确B. 错误7. 树木的离心生长、向心更新会导致树木的体态变化。

( )A. 正确B. 错误8. 乔木型竹只能以根蘖更新。

( )A. 正确B. 错误9. 不同的树种,生命周期每一时期开始的早晚与延续时间长短大致相同,差异不大。

( )A. 正确B. 错误10. 从种子萌发时起到具有开花潜能之前的一段时期称为青年期。

( )A. 正确B. 错误11. 紫薇当年栽种即可开花,而银杏需15~20年,说明了不同树种需经历的幼年期时间差异很大。

( )A. 正确B. 错误12. 营养繁殖的树木没有幼年阶段也没有性成熟过程,只要生长正常,有条件即可成花。

( )A. 正确B. 错误13. 树木各物候期的开始、结束和持续时间的长短因树种、环境条件与栽培条件不同而不同。

( )A. 正确B. 错误14. 一般来说,栽培措施不可能改变树木物候的变化进程。

( )A. 正确B. 错误15. 一般来说,由于环境的周期变化不同,每年的栽培措施也应做出相应的调整。

( )A. 正确B. 错误16. 树木从休眠期转入生长期需要一定的累积温度,不同树木所需的累积温度不同。

( )A. 正确B. 错误17. 树木的根的萌动比萌芽更迟。

2023育婴员中级练习500题 _无答案版本

2023育婴员中级练习500题 _无答案版本

单项选择题(共题353题)1.狂犬病是感染( )得病。

A:狂犬病毒B:狗病毒C:狂犬疫苗D:狂犬病菌2.()不是25~36个月的婴幼儿饮食的注意事项。

A:饮食逐步定量B:食进量与体力活动平衡C:食量逐步增加D::定期儿童生长检测3.大部分25~36个月婴幼儿每天睡眠的时间是()左右。

A:12个小时B:13个小时C:14个小时D:15个小时4.为婴幼儿测量身高时宜取( )体位。

A:坐位B:侧卧位C:仰卧位D:俯卧位5.婴幼儿图书选择文字的描述要越( )越佳。

A:简短B:复杂C:简洁D:简单6.一般平均每次奶量,1个月内的婴幼儿,奶量为()。

A:60~120mlB:80~120mlC:120~150mlD:150~180ml7.婴幼儿点心的进食时间应安排在两顿主餐的间隔时间,距离下顿主食至少( )小时。

A:1B:2C:3D:48.()是6个月内婴儿最好的天然食物。

A:母乳B:配方奶粉C:果汁D:蔬菜汁9.对婴幼儿社会性发展影响最大的早期人际关系有两种()。

A:亲子依恋关系和同伴交往关系B:亲子依恋关系和保育员交往关系C:亲子依恋关系和师生交往关系D:亲子依恋关系和育婴员交往关系10.我国一般把从出生到成熟之间(0~18岁)的发展过程分为新生儿期,婴幼期等( )。

A:三个阶段B:四个阶段C:五个阶段D:六个阶段11.进食点心要有节制,控制进食的量和进食次数,注意不能以( )。

A:点心代替水果餐B:点心代替奶制品C:点心代替主食D:主食代替点心12.( )是被狗咬伤伤口的正确处理方法。

A:立即伤口挤血B:立即包扎伤口C:立即碘伏消毒伤口D:立即肥皂水冲洗伤口13.不属于婴幼儿生活照料过程中的安全因素是()。

A:婴幼儿乘坐无安全装备的轿车会使婴幼儿受到外伤B:喂食过期的奶粉将引起小儿腹泻C:喂食变质食品将引起小儿腹泻D:喂食未经煮透煮熟的食物将引起小儿腹泻14.为预防(),便后涂消毒植物油。

A:鹅口疮B:脐炎C:狂犬病D:尿布皮炎15.目前儿童死亡的首要原因是( )。

初中宾语从句专项练习题 无答案

初中宾语从句专项练习题 无答案

宾语从句讲练一、宾语从句的连词:1 The teacher told us she was a good girl .2 We know Taiwan attracts a number of tourists every year .3 Are you from Japan? He asked me .He asked me / I was from Japan.4 Do you like watching TV?He asked me.He asked me / I liked watching TV.5 When did he leave for China ?Could you tell me ?Could you tell me he left for China?6 Can you tell me a good place to visit ?A where there isB there is whereC where is thereD is there where总结:1当宾语从句是陈述句时,连词用(一般可省略)。

2当宾语从句是一般疑问句时,连词用。

3当宾语从句是特殊疑问句时,连词就用原来的疑,但一定要用语序。

巩固提高:1 I don’t know I can get to the station.2 I don’t know she will be back or not next Saturday.3 Could you please tell me the post office is?4 My English teacher said my spoken English was very good.5 This pair of shoes is neither beautiful nor comfortable. I don’t know you want to buy it.二、宾语从句的转换之将从句变为疑问词to-do1. She doesn’t know what she should do next.She doesn’t know ______________next.2 Will you please show me how I can work it out?Will you please show me _________it out?3 Could you tell me how I can get some shampoo?Could you tell me ___________some shampoo?三、宾语从句的语序:1 What’s Kate’s e—mail address? Do you know ?(合为一句)Do you know what ____________________________?2 Could you tell me _________?A where is the post officeB where the post office isC how can I get to the parkD how I can get to the park3 I don’t know __________.A where does he come fromB what is his nameC when will he leaveD how old he is4 Where can I buy some shampoo? Do you know ?合为一句Do you know where ____________buy some shampoo?总结:宾语从句的语序要用_______________语序,即主谓语序。

小学数学五年级 小数乘小数习题无答案 人教新课标

小学数学五年级 小数乘小数习题无答案 人教新课标

小数乘小数练习题六、解决问题1.蒙古牛一-般体重是0.326吨,身高是1.12米。

新培育的草原红牛体重约是蒙古牛的1.3倍,身高约是蒙古牛的1.1倍。

草原红牛的体重、身高各多少?其实,任何一门学科都离不开死记硬背,关键是记忆有技巧,“死记”之后会“活用”。

不记住那些基础知识,怎么会向高层次进军?尤其是语文学科涉猎的范围很广,要真正提高学生的写作水平,单靠分析文章的写作技巧是远远不够的,必须从基础知识抓起,每天挤一点时间让学生“死记”名篇佳句、名言警句,以及丰富的词语、新颖的材料等。

这样,就会在有限的时间、空间里给学生的脑海里注入无限的内容。

日积月累,积少成多,从而收到水滴石穿,绳锯木断的功效。

宋以后,京师所设小学馆和武学堂中的教师称谓皆称之为“教谕”。

至元明清之县学一律循之不变。

明朝入选翰林院的进士之师称“教习”。

到清末,学堂兴起,各科教师仍沿用“教习”一称。

其实“教谕”在明清时还有学官一意,即主管县一级的教育生员。

而相应府和州掌管教育生员者则谓“教授”和“学正”。

“教授”“学正”和“教谕”的副手一律称“训导”。

于民间,特别是汉代以后,对于在“校”或“学”中传授经学者也称为“经师”。

在一些特定的讲学场合,比如书院、皇室,也称教师为“院长、西席、讲席”等。

“教书先生”恐怕是市井百姓最为熟悉的一种称呼,从最初的门馆、私塾到晚清的学堂,“教书先生”那一行当怎么说也算是让国人景仰甚或敬畏的一种社会职业。

只是更早的“先生”概念并非源于教书,最初出现的“先生”一词也并非有传授知识那般的含义。

《孟子》中的“先生何为出此言也?”;《论语》中的“有酒食,先生馔”;《国策》中的“先生坐,何至于此?”等等,均指“先生”为父兄或有学问、有德行的长辈。

其实《国策》中本身就有“先生长者,有德之称”的说法。

可见“先生”之原意非真正的“教师”之意,倒是与当今“先生”的称呼更接近。

看来,“先生”之本源含义在于礼貌和尊称,并非具学问者的专称。

2020年中考 二次函数压轴练习试题 (无答案)

2020年中考 二次函数压轴练习试题   (无答案)

二次函数练习1、二次函数22++=bx ax y 的图象交x 轴于A (-1,0),B (4,0)两点,交y 轴于点C ,动点M 从点A 出发,以每秒2个单位长度的速度沿AB 方向运动,过点M 作MN ⊥x 轴交直线BC 于点N,交抛物线于点D ,连接AC ,设运动的时间为t 秒.(1)求二次函数22++=bx ax y 的表达式;(2)连接BD ,当23=t 时,求△DNB 的面积; (3)在直线MN 上存在一点P,当△PBC 是以∠BPC 为直角的等腰直角三角形时,求此时点D 的坐标;(4)当45=t 时,在直线MN 上存在一点Q ,使得∠AQC+∠OAC=900,求点Q 的坐标.2、在平面直角坐标系xOy 中,抛物线y=ax 2+bx −a 1与y 轴交于点A ,将点A 向右平移2个单位长度,得到点B ,点B 在抛物线上。

(1)求点B 的坐标(用含a 的式子表示);(2)求抛物线的对称轴;(3)已知点P(21,−a1),Q(2,2).若抛物线与线段PQ 恰有一个公共点,结合函数图象,求a 的取值范围。

3、如图,抛物线c bx ax y ++=2经过点A (-2,5),与x 轴相交于B (-1,0),C (3,0)两点.(1)求抛物线的函数表达式;(2)点D 在抛物线的对称轴上,且位于x 轴的上方,将△BCD 沿直线BD 翻折得到△BC 'D ,若点C '恰好落在抛物线的对称轴上,求点C '和点D 的坐标;(3)设P 是抛物线上位于对称轴右侧的一点,点Q 在抛物线的对称轴上,当△CPQ 为等边三角形时,求直线BP 的函数表达式.4、已知抛物线y=x 2−bx+c(b,c 为常数,b>0)经过点A(−1,0),点M(m,0)是x 轴正半轴上的动点。

①当b=2时,求抛物线的顶点坐标;②点D(b,y D )在抛物线上,当AM=AD ,m=5时,求b 的值;③点Q(b+21,y Q )在抛物线上,当2AM+2QM 的最小值为4233时,求b 的值。

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第一章信息与信息技术
一、信息与信息的特征
1.关于信息,以下说法不正确的是()
A.需要依附于载体而存在 B.两个人进行交谈或讨论也是在互相传递信息
C.传递和获得信息的途径可以有很多种 D.信息可以不通过载体传授
2.( )不属于信息的主要特征。

A.时效性 B.不可能增值 C.可传递、共享 D.依附性
3.天气预报、市场信息都会随时间的推移而变化,这体现了信息的( )。

A.载体依附性 B.共享性 C.时效性 D.必要性
4、古人将文字、符号刻在龟甲上以传后人,这主要体现了信息特征中的()。

A、载体依附性
B、时效性
C、真伪性
D、可加工性
5.下列叙述中,其中( )是错误的。

A.信息可以被多个信息接收者接收并且多次使用 B.信息具有时效性特征
C.同一个信息可以依附于不同的载体 D.获取了一个信息后,它的价值将永远存在6.小王和小李就“信息”的范畴展开了讨论。

小王说:“报纸上刊登的广告是信息”;小李说:“期中考试的各科成绩是信息”。

你认为他们说的对吗?( )
A.小王说的对,小李说的不对 B.小李说的对,小王说的不对
C.小王和小李说的都对 D.小王和小李说的都不对
7.学校通过广播报道校运会赛事信息,其主要的信息载体形式是( )
A.动画 B.声音 C.视频 D.图形
8.对于信息,下列说法错误的是()。

A.信息是可以处理的 B.信息是可以传递的
C.信息是可以共享的 D.信息可以不依附于某种载体而存在
9.《三国演义》中的《空城计》,魏诸葛亮用“空城计”吓退司马懿十五万大军,这一案例告诉我们,信息具有()
A.价值性 B.时效性 C载体依附性 D.真伪性
10.典故“马陵之战”中的“减灶退敌”炉灶减少人数减说明信息的()
A.价值性 B.时效性 C载体依附性 D.真伪性
11.老黄历看不得、找路时使用旧的交通地图往往会误事,说明信息具有()
A.价值性 B.时效性 C载体依附性 D.真伪性
12.一千个读者,一千个‘哈姆雷特’对于同一件事情,每个人可能会有不一样的看法。

()
A.价值相对性 B.时效性 C载体依附性 D.真伪性
13.《三国演义》的“赤壁之战”中,蒋干从周瑜那里盗得伪造的蔡瑁、张允投降书,致使曹操将二人斩首。

信息的()
A.价值相对性 B.时效性 C载体依附性 D.真伪性
14.6月25日,天气炎热,李先生顺手拿起一张报纸浏览,看到一条信息“今明两天到国美电器购买空调一台,即获300元现金券。

”于是,李先生便前往国美商场,却被告知他不能享受优惠,李先生不解,找出报纸一看,发现报纸是6月1日的,在这个事例中李先生的错误体现了信息的什么特征()A.价值相对性 B.时效性 C载体依附性 D.真伪性
15.“口说无凭”指的是说过的话无据可查,在进行重大交易时,往往需要签订书面协议。

()A.价值相对性 B.时效性 C载体依附性 D.真伪性
16.李华想报考公务员,但一打听今年的公务员报名工作已结束,她错过了报名的机会。

这件事情主要体现了信息的()
A.价值相对性 B.时效性 C载体依附性 D.真伪性
17.信息无处不有,信息无处不在,表现了信息具有()
A.普遍性 B.时效性 C载体依附性 D.真伪性
18.下列不能称为信息的是()
A.报上刊登的广告 B.高一的《信息技术》教科书
C.电视中播放的刘翔打破世界纪录的新闻 D.半期考的各科成绩
19、下列不属于信息的是()。

A、电视新闻报道
B、天气预报
C、电视机
D、市场行情
20、下列不属于信息的是()。

A、报纸上刊登的新闻
B、电视播放的天气预报
C、书本里的知识
D、存有程序的磁盘
21、下列属于信息的是()。

A、电脑
B、VCD光盘
C、报纸
D、CCTV1播出的新闻
22、萧伯纳的名言"你有一个苹果,我有一个苹果,彼此交换一下,我们仍然各有一个苹果;但你有一种思想,我有一种思想,彼此交换,我们就都有了两种思想,甚至更多",这种现象最能说明信息具有()。

A、传递和共享性
B、时效性
C、载体依附性
D、隐蔽性
23、在我国古代,人们常用"学富五车"来形容一个人博学,这是因为那时的书是以笨重的竹简、木简为载体的。

这体现了信息的。

( )
A、载体依附性
B、共享性
C、时效性
D、传递性
二、信息技术及其发展
1、下列不属于信息技术范畴的是()
A.计算机技术
B.微电子技术
C.通信技术
D.勘探技术
2、通常认为人类社会共经历了五次信息技术革命,按发展的先后顺序排列,下列选项中正确的是()。

①造纸术和印刷术的发明②语言的产生与应用③计算机与现代通信技术的应用④文字的创造和使用
⑤电报、电话、广播、电视的发明和普及
A.①②③④⑤
B.②④①⑤③
C.③②①⑤④
D.④②①③⑤
3、从古到今,人类共经历了五次信息技术的重大发展历程,当前正处于哪一阶段?( )
A、文字的发明和使用
B、电报、电话及其它通讯技术的应用
C、语言的产生和应用
D、电子计算机和现代通信技术的应用
4、下列叙述中不正确的是:( )
A、微电子技术是现代信息技术的基石
B、信息是一成不变的东西
C、信息是一种可利用的资源,具有一定的使用价值
D、信息可以在时间和空间上传递
5、通常认为人类社会发展史上发生过五次信息技术革命,其中文字的创造()。

A使信息的存储和传递首次超越了时间和地域的局限 B是从猿进化到人的重要标志
C为知识的积累和传播提供了更为可靠的保证 D进一步突破了时间与空间的限制
6、北京奥运会举办的全过程中,世界各地的网民都能第一时间通过网络即时地观看到奥运赛事,包括开幕式、闭幕式及所有重点赛事。

这主要体现了人类社会发展史上的()信息技术革命所产生的巨大作用。

A第二次 B第三次 C第四次 D第五次。

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