周周清1
八年级英语周周清(1)
英语周周清8A Unit1 (一) 09/9/10一．根据句意或汉语提示写出下列单词。
（每空一词）（2’*10=20’）1. My friend David always b that he can win the first in the exam next time.2. She is an (诚实的) girl, so I believe what she says.3. I can tell Millie anything because she can keep (秘密).4. Hangzhou is f for the West Lake.5. Kate is very pretty and kind because she has a pair of s eyes.6. Jenny is a h__________ girl. She often helps me with my English.7. Does Lucy have a round face or a s_________ one?8. I want to be a policeman in the f__________.9. Han Hong is one of the most popular s__________ in China now.10. Jim is very tall. The h_________ of him is 1.75meters.二．用所给词的适当形式填空。
（2’*10=20’）1.I did lots of funny things the baby laugh. (make)2.Can I have something __________ (drink)? Sure!3.It's great football. (play)4.My elder sister is a little than me. (thin)5.I have memory in my class. (bad)6.I'm willing my hand to others. (give)7.I feel when I read this book. (bore)8.If I don't pass the English exam, my mother will be ________ (happy).9.After she came out of the hospital, she looked _________ than before (healthy).10.I think Physics is as __________ (difficult) as Math.三．单项选择题。
九年级英语全册周周清一新版人教新目标版
检测内容：Unit 1得分________ 卷后分________ 评价________一、单项选择。
(10×1.5分＝15分)从下面各题的四个选项中选择一个最佳答案。
(C)1.Miss Li picked a short text for each of us to repeat word ________ word.A．with B．of C．by D．in(B)2.Just be ________ with the difficult math problem, or you won't work it out soon.A．satisfied B．patientC．strict D．comfortable(D)3.Plan your money ________ at the beginning of the month so that you don't run out of it early.A．differently B．easilyC．cheaply D．wisely(B)4.(2019江苏南通)—Excuse me, can you teach me how to ________ this new word?—No problem. Look at my mouth and listen carefully.A．prove B．pronounceC．prepare D．produce(B)5.—What't the secret ________ happy?—I think it is helping others.A．to be B．to beingC．be D．being(B)6.(2019湖南湘西中考改编)—How do you practice your spoken English, Andrew?—By ________ English with my classmates.A．to speak B．speakingC．speak D．speaks(C)7.We should ________ spelling and capital letters when writing in English.A．get used to B．get ready toC．pay attention to D．look forward to(D)8.Many animals ________ the ability to swim, but humans must practice how to swim.A．part with B．agree withC．are good with D．are born with(C)9.Our program will help you ________ what you learn in the classroom ________ reallife experiences.A．introduce; to B．lead; toC．connect; with D．fill; with(B)10.—I'm always a slow reader. What can I do?—Well, be patient. ________. You can become better by reading more.A．That's true B．It takes timeC．I agree D．It's a piece of cake二、完形填空。
2021秋六年级新人教版语文上册第五单元周周清(一)含答案
第五单元周周清(一)[测试范围：第16，17课时间：40分钟满分：45分]一、基础清（16分）1．阅读下面材料，回答问题。
(5分)夏天来了，瓜蔓．( )在不停地疯长，菜qí( )里呈现绿油油的景象，甘庶一天天地长高……这些景象令人欣喜不已。
但我最喜欢的却是在下雨的天气里，穿上斗蓬式的雨衣，跑去帮妈妈买jiàng( )油，让妈妈炒菜吃，我享受雨在雨衣上跳舞的感觉。
(1)根据拼音写出汉字，或给加点字注音。
(3分)瓜蔓．( )菜qí( )jiàng( )油(2)文段中有两个错字，请找出并纠正。
(2分)__________改为__________；__________改为__________。
2．下列句子中没有语病的一项是( )(3分)A．通过参加志愿者活动，让许多学生都感受到了奉献的快乐。
B．“百度”“美团”“饿了么”，这三家外卖平台的全国日订单量大约在700万单左右。
C．在有关部门的大力治理下，我市PM2.5指数下降了一倍多，空气质量得到明显改善。
D．高速铁路具有服务大众、紧贴民生的特点。
3．下面标点使用正确的一项是( )(3分)A．北方农家的谚语说：“六月六，看谷秀”。
B．你在豆棚瓜架上看绿蔓，一天可以长出几寸，你到竹子林、高粱地里听声音，在叭叭的声响里，一夜可以多出半节。
C．每天在放学的路上我都这样想：太阳把天烤得这样干，还能长云彩吗？D．作者描绘的景色是真实存在的？还是作者虚构的？4．请你根据下面这首颂兰诗对出下联。
(5分)芳名誉四海，落户到万家。
叶立含正气，芳妍不浮华。
常绿斗严寒，含笑度盛夏。
花中真君子，风姿寄高雅。
上联：观翠竹仰慕谦逊品节下联：种幽兰追求__________二、素养清（14分）5．按要求填空。
(8分)(1)我会写谚语：____________，割谷喂老牛。
朝霞不出门，______________。
(2)________________，山青花欲燃。
人教版级语文下册周周清周周清(一)
人教版级语文下册周周清周周清(一)“周周清周周清”，这可能是很多人小时候读过人教版语文下册的同学都非常熟悉的一个名词。
周周清是人教版语文下册中的一本阅读辅导书，它一直以来都备受家长和老师的关注。
那么，为什么周周清能够受到这么多关注呢？它到底有什么优点和劣势呢？今天我们就来一起探讨一下这个话题。
一、周周清的优点1.内容丰富周周清中的练习题涵盖了多种类型的题目，包括阅读理解、填词、选词填空、句子改错等等。
这些题目不仅能够帮助学生巩固课堂学习的知识，还能够提高学生的阅读能力和写作水平。
2.难度适中周周清的练习难度并不是特别高，对于初学者来说比较易于掌握。
同时，它也不是那种过于简单的练习题，而是进行了一定的融合和拓展，使得学生能够逐步提高自己的语文素养。
3.形式新颖周周清中的题目形式比较新颖，比如填画、搜图、挖掘等等，这使得学生的学习更具趣味性和互动性。
而这些形式也能够激发学生的学习热情，让学生更主动地参与到学习中来。
二、周周清的劣势1.练习过多周周清中的练习数量比较多，这可能会让一些学生感到压力。
如果学生过于注重做题数量，而忽略了理解题意的重要性，那么就可能会在考试中失分。
2.缺少情境周周清中的练习缺乏情境，对于学生的语文理解能力的培养可能有一定的限制。
造成这种现象的原因可能是出题者想要确保练习题的公正性和客观性，但也忽略了情境对于学生理解能力的提升作用。
3.缺乏趣味性虽然周周清中的练习形式比较新颖，但是很多学生仍会认为这些练习缺乏趣味性。
对于缺乏学习兴趣的学生来说，这可能会成为一种阻碍。
总体来说，周周清是一本比较不错的语文阅读辅导书。
它的丰富内容、适中难度以及新颖形式让学生更愿意参与到学习中来，而不是单调地记忆知识点。
当然，周周清的劣势也不容忽视，比如缺乏情境和趣味性等方面对于学生的学习有所制约。
因此，我们要在使用周周清的时候，既要注重做题数量，又要注重理解题目的意思，让学习更有效果。
同时也要考虑到学生的实际情况，有针对性地进行练习和指导。
2022-2023学年九年级人教版物理周周清1
检测内容：第十三章第1～3节得分________卷后分________评价________一、选择题(共8小题，共48分。
1～7为单选题，8为多选题，每小题6分)1．下列常见的自然现象，能用分子热运动知识解释的是(C)A．春天，柳枝吐芽B．夏天，山涧瀑布C．秋天，菊香满园D．冬天，雪花飘飘2．(赤峰中考)“母亲节”到了，小云怀着一颗感恩的心为妈妈精心准备了一桌美食。
关于烹饪食物过程中所包含的物理知识，以下认识正确的是(D)A．锅一般都是用铁制造的，主要是利用了铁的比热容较大的性质B．炒菜时，主要是通过做功的方式增加菜的内能C．拌菜时，要通过搅拌才能更好入味，说明分子没有做无规则运动D．炖菜时，主要是通过热传递的方式使菜的内能增加3．(杭州中考)对同一物态的某种物质，根据c＝QmΔt可知(D)A．比热容跟热量成正比B．比热容跟质量成反比C．比热容跟温度变化成反比D．吸收或放出的热量跟质量与温度变化的乘积之比是个恒量4．(盐城中考)为了“探究热传递过程中高温物体、低温物体温度变化”的特点，小明做了如下实验，将盛有30 ℃冷水的小烧杯放入盛有70 ℃热水的大烧杯中，分别用温度传感器测量两杯水的温度变化情况，绘制成如图所示的图象。
下列说法错误的是(C) A．热水和冷水到达同一温度的时间是相同的B．热水温度下降比冷水温度升高得快C．热水放出的热量等于冷水吸收的热量D．热水的质量可能小于冷水的质量第4题图第5题图5．(常州期中)小明同学用酒精灯对冰块加热，研究冰的熔化现象。
他依据实验数据绘制了图中甲、乙两条图线中的一条，已知m冰＝0.1 kg，c水＝4.2×103 J/(kg·℃)，c冰＝2.1×103 J/(kg·℃)，酒精灯在相同时间内的加热效果相同，下列分析正确的是(D) A．小明绘制的是甲图线B．1～3 min内温度不变，说明冰块没有吸收热量C．0～1 min内冰块吸收的热量为2.1×103 JD．1～3 min内，冰水混合物吸收的热量为2.1×103 J6．(重庆校级月考)1 kg初温为30 ℃的水，吸收4.2×105 J的热量后，它的温度在下列给出的四个温度中，最多有几个可能温度(C)①90 ℃②110 ℃③130 ℃④150 ℃A．1 B．2 C．3 D．47．(抚顺一模)用相同的加热装置对a、b两种液态的物质加热时，它们的温度随时间变化的图象如图所示，下列说法正确的是(A)A.如果a、b是同种物质，则a的质量更小B．如果a、b质量相等，则a的吸热能力更强C．在加热过程中，利用做功的方式改变了a、b的内能D．温度从t1升高到t2时，a、b吸收的热量Q a＝Q b8．(多选)关于温度、热量和内能，下列说法中正确的是(AC)A．一个物体放出热量时，温度可能会下降B．物体的温度越低，所含的热量越少C．一个物体内能增加时，温度不一定升高D．物体内能增加，一定从外界吸收热量二、填空题(每空2分，共20分)9．(辽阳中考)热熔胶是一种在常温下为固态的粘合剂，使用时先用热熔胶枪加热使其熔化，再凝固来粘合物体。
一年级数学周周清(1)
一年级数学 第1页，共2页
一年级数学第2页，共2页
…○…………密…………封…………线…………内…………不…………要…………答…………题…………○………
准考证号： 姓名： 班级：
一年级数学周周清试卷
2019.12.17
一、连一连。
（12分）
二、算一算。
（每题30分）
8+7= 4+8= 9+8= 4+9= 9+6= 3+9= 7+4= 6+7= 7+8= 2+9= 7+9= 6+8= 5+6= 9+9= 5+7= 6+( )=13 7+( )=5+6 6+9=( )+7 8+( )=14 7+7=5+( ) 8+( )=10+7 三、填一填。
（每题26分）
1、1个十和5个一合起来是（ ）。
2个十是（ ）。
2、18是（ ）位数，十位上是（ ），个位上是（ ）。
3、和15相邻的数是（ ）和（ ）。
4、17的个位上是（ ），表示（ ）个（ ）；十位上是（ ），表示（ ）个（ ）。
12里面有（ ）个十和（ ）个一。
5、一个加数是2，另一个加数是12，和是（ ）。
6、被减数是14，减数是4，差是（ ）。
四、看图列算式。
（25分）
五、解决问题。
（7分）
1. 猫妈妈钓了16条鱼，小猫钓了3条鱼。
一共钓了几条鱼？ （条）
2. 小青蛙和青蛙妈妈一共捉了19只虫子，小青蛙捉了4只虫子。
青蛙妈妈捉了几只虫子？
（只）。
高一英语周周清训练(1)
高一英语周周清1一、完形填空Unfortunately man has killed wild animals, polluted rivers and cut down forests through the ages. But lately people are beginning to realize that their own lives depend on the way they treat “nature” and all living things in it.Man has 1 ways of showing his love to nature. He says he loves it, although he often 2 its beauty. While walking through the woods, how many times have we picked flowers? Then later, as the 3 wither(枯萎), we throw them away. That’s one of the reasons 4 many kinds of plants and flowers have become rare. Or, have you 5 wondered where all the thousands of New Year trees come from and 6 happens to them, once the 7 are over?Man destroys natu re by polluting the air. That’s probably the greatest danger8 our lives. The smoke from factories and 9 from cars and trucks do not only harm the surrounding vegetation(植被). It 10 our earth, too.Man pollutes rivers, seas and oceans. Just think of the 11 fish that die by thousands because of polluted waters.Biologists have 12 that all kinds of wildlife are 13 in the areas where they live. Even the wolf, which we 14 dangerous and “bad”, plays an important role in nature. Here is an interesting example: There is a large 15 in one of the Great Lake between Canada and the US. Early in this century many wild deer invaded(涌入) the island. Nobody knows how they 16 there.The deer multiplied(繁殖) until there were as many as 4,000 on the island. They destroyed 17 of the vegetation on it. Finally, as they couldn’t find enough 18 , they began to starve and die. Then came the wolf. 19 knows how wolves got to the island, but they 20 . The wolves killed those deer that were easiest to catch—the sick, the weak and the old. So, only the strong and the healthy animals were left. The island became green once again and there was enough food for the deer that were left.1、A、lovely B、strange C、many D、much2、A、harms B、breaks C、injures D、destroys3、A、stems B、branches C、roots D、flowers4、A、what B、how C、why D、when5、A、still B、even C、ever D、quite6、A、which B、that C、what D、how7、A、years B、meetings C、parties D、holidays8、A、to B、of C、about D、for9、A、waters B、smells C、gases D、whistles10、A、affects B、efforts C、effects D、causes11、A、poor B、weak C、strong D、ill12、A、studied B、developed C、invented D、discovered13、A、want B、need C、necessary D、helped14、A、consider B、think it C、regard D、think as15、A、field B、land C、mountain D、island16、A、left B、got C、reached to D、arrived in17、A、a whole B、most C、more D、more much18、A、plants B、rice C、vegetation D、food19、A、Nobody B、Anybody C、Somebody D、Everybody20、A、got B、went C、arrive D、did二．阅读理解：AA man once said how useless it was to put advertisements in the newspaper. “Last week”, he said, “my umbrella was stolen from a London church. As it was a present, I spent twice its worth in advertising, but didn’t get it back.”“How did you write your advertisement?” asked one of the listeners, a merchant.“Here it is”, said the man, taking out of his pocket a slip out from a newspaper. The other man took it and read, “Lost from the City Church last Sunday evening, a black silk umbrella. The gentleman who finds it will receive ten shillings on leaving it at No.10 Broad Street.”“Now” said the merchant, “I often advertise, and find that it pays me well. But the way in which an advertisement is expressed is of extreme importance. Let us try for your umbrella again, and if it fails, I will buy you a new one.”The merchant then took a slip of paper out of his pocket and wrote. “ if the man who was seen to take an umbrella from the City Church last Sunday evening doesn’t wish to get into trouble, h e will return the umbrella to No.10 Broad Street. He is well known.”This appeared in the paper, and on the following morning, the man was astonished when he opened the front door. In the doorway lay at least twelve umbrellas of all sizes and colors that had been thrown, and his own was among them. Many of them had notes fastened to them saying that they had been taken by mistake, and begging the loser not to say anything about the matter.21、What is an advertisement?A、A news itemB、A public announcement in the press, on TV, etc.C、One way to voice one’s view.D、Public opinions.22、The man once thought advertising was_________.A、of little useB、of some useC、practicalD、valuable23、Why did the merchant say “I often advertise, and find that it pays me well.”?A、He knew how to advertise.B、He had more money for advertising.C、He found it easy to advertise.D、He had a friend in the newspaper where he advertised.24、Did the merchant know who had taken the umbrella?A、SureB、Not very sureC、Not at allD、probably.25、This is a story about____________.A、a useless advertisementB、how to make an effective advertisementC、how the man lost and found his umbrellaD、what the merchant did for the umbrella owner.BYou are seeing a film in which two men are having a fight. They hit one another over the heads with chairs. And so it goes on until one of the men crashes through a window and falls thirty feet to the ground below. He is dead!Of cour se he isn’t really dead. With any luck he isn’t even hurt. Why? Because the men who fall out of high windows or jump from fast moving trains, who crash cars or even catch fire, are professionals. They do this for a living. These men are called stuntmen. That is to say, they perform tricks.They actually do most of the things you see on the screen. For example, they fall from a high building. However, they do not fall onto hard ground but onto empty cardboard boxes covered with a mattress. Again, when they hit one another with chairs, the chairs are made of soft wood and when they crash through windows, the glass is made of sugar!But although their work depends on tricks of this sort, it also requires a high degree of skill and training. Often a stuntman’s s uccess depends on careful timing. For example, when he is “ blown up” in a battle scene, he has to jump out of the way of the explosion just at the right moment.Naturally stuntmen are well paid for their work, but they lead dangerous lives. They sometimes get seriously injured, and even killed. A Norwegian stuntman, for example, skied over the edge of a cliff a thousand feet high. His parachute (降落伞) failed to open and he was killed.In spite of all the risks, this is no longer a profession for men only. Men no longer dress up as women to perform some dangerous actions. For nowadays there are stunt girls , too.26. What can be inferred from the author’s example of the Norwegian stuntman?A. Sometimes an accident can happen to a stuntman.B. The percentage of serious accidents is high.C. Parachutes must be of good quality.D. The cliff was too high.27. Stuntmen are those who __________________.A. often dress up as actors.B. like to lead dangerous lives.C. often perform seemingly dangerous actions. D .often fight each other for their lives.28. Stuntmen earn their living by ___________________.A. playing their dirty tricks.B. selling their special skills.C. jumping out of high windows.D. jumping from fast moving trains.29. When a stuntman falls from a high building, _____________________.A. he needs little protection.B. he will be covered with a mattress.C. his life is in danger.D. his safety is generally all right.30. Which of the following is the main factor of a successful performance?A. StrengthB. ExactnessC. SpeedD. CarefulnessCRecently some American scientists have given a useful sincere piece of advice to people in industrialized nations that they would be much healthier if they ate more of the same kind of food eaten by humans living more than 10,000 years ago.The scientists say that the human body has changed very little since humans first appeared on the earth, but the way we live has changed greatly. Our body has not been able to deal with ( 处理，对付)these changes in life style and this has led to new kinds of sicknesses. These new sicknesses were not known in ancient times, so they are called “ diseases of civilization”. Many cancers and diseases of the blood system, including heart attacks and strokes ( 中风) are examples of such diseases.Scientists noted that people in both the Old Stone Age and the New Stone Age enjoyed very little alcohol (酒精) or tobacco ( 烟草), probably none. Ancient people also got a great deal of physical exercise, but a change in food is one of the main differences between life in ancient times and that of today.Stone-age people hunted wild animals for their meat, which had much less fat than domestic or tame ones ( 家畜). They also ate a lot of fresh wild vegetables and fruits. They didn’t have milk or any other dairy products, and they made very little use of grains. But today, we eat a large amount of these. We eat six times more salt than our remote ancestors ( 祖先). We eat more sugar. We eat twice as much fat but only one third as much protein (蛋白质) and much less vitamin C.People today probably do not want to live the way people thousands of years ago did, but scientists say that we would be much healthier if we ate much the same way as remote ancestors did, cutting the amount of fatty, salty and sweet food.31. According to the passage, people in industrialized nations would be much healthier if theyate____________________.A. more food than humans living 10,000 years ago did.B. as much food as humans living 10,000 years ago didC. more kinds of food eaten by people living over 10,000 years ago.D. more of the same kind of food eaten by people over 10,000 years ago.32. New kinds of sicknesses have been found because ___________________.A. the human body has changed compared with humans who first appeared on the earth.B. the way we live has changed a little.C. our body can’t deal with the changes in life style.D. the way we live today is proper for the human body.33. What is the main cause that people suffer from a lot of new sicknesses?A. Ancient people did a great deal of physical exercise.B. People today have a lot of alcohol.C. People today have more tobacco.D. Food today is quite different from that of ancient times.34. Which of the following belongs to the dairy products?A. MilkB. CornC. PorkD. Flour35. According to some scientists , Stone-age people were much healthier than people todaybecause they ate a lot of _____________.A. milk and other dairy products.B. wild animals, fresh wild vegetables and fruits.姓名：____________C. salt and sugarD. grain foods三、单词填空：1. The homework was a bit c_________ for me, because I was absent from class yesterday and missed the lesson.2. Cultural e____________ is very important for all the countries in the world, since more and more people want to know about other countries nowadays.3. I look back on the life in the countryside with s___________ because of the fresh air and beautiful views.4. Please keep me i___________ of the event and I will do everything I can to help you.5. If you s________ in your English learning, you can try to turn to your teacher for help.6. On a___________, there are ten students who the teacher fails every term.7. To e______ respect from the others, you need to respect them first.8. To live an i____________ life, you must get rid of the habit of depending on others.9. I feel very lucky to have the chance to e_________ the happiness of trying this new product.10. He d________ himself to his career and achieves a lot.1-5 BDDCC 6-10 CCACA 11-15 ADCAD 16-20 BBDAD 21—25 BAACB 26–30 ACBDB 31–35 DCDAB。
人教部编七年级语文上册 第2单元 第二单元 周周清(一)
第二单元周周清（一）[测试范围：第5、6课时间：40分钟满分：45分] 一、基础清（14分）1．根据拼音写汉字或给加点的字注音。
(5分)爱是什么？爱是面对瘫huàn( )的儿子时，母亲谨慎的yāng( )求；爱是面临死神的威胁时，母亲临终的牵挂；爱是发生分歧．( )时，子女尊老爱幼的抉．( )择；爱是父母老去时，子女小心翼翼的搀．( )扶……爱是付出，是无私的回报。
2．下列加点成语使用不恰当的一项是( )(3分)A．校园艺术节画展上，大家纷纷在一幅杏花图前驻足，这幅妙手回春．．．．之作仿佛把人们带到了融融春光之中。
B．电视连续剧《人民的名义》，剧情跌宕起伏，反腐尺度之大前所未有，可谓气势磅礴，石破天惊．．．．。
C．各级用人单位越来越重视人才队伍建设，真诚关心、爱护人才，增强人才的凝聚力，使各方面人才各得其所．．．．，尽展其长。
D．心脏设备设计公司的专家3D打印出一种用于心脏手术的工具，这种工具能在术后帮助医生将组织自动缝合在一起，并能做到天衣．．无缝．．。
3．下列句中标点使用有误的一项是( )(3分)A．我们在田野上散步：我、我的母亲、我的妻子和儿子。
B．6月6日是“全国爱眼日”，的主题是“‘目’浴阳光，预防近视”。
C．铁人三项包括哪些项目？什么时候在我市举行？老师逐一做了回答。
D．自己不倒，啥都能过去；自己倒了，谁也扶不起你。
4．【济宁改编】下列句子中，没有语病的一项是( )(3分) A．志愿者不怕付出，当他们默默奉献爱心的时候，需要社会给予更多的关注和支持。
B．亲子运动会不仅增进了孩子与父母之间的感情，孩子们也在活动中得到了锻炼。
C．为回馈广大顾客的厚爱，本店打折销售部分商品，具体详情敬请进店咨询。
D．智能手机功能强大，不仅能聊天，看视频，还能看直播，深受用户欢迎。
二、素养清（16分）5．填空。
(6分)(1)________________，影入平羌江水流。
(李白《峨眉山月歌》)(2)正是江南好风景，________________。
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周周清1
1.从东西半球看，我国位于，从南北半球看我国位于。
我国大多数地区位于中纬度地区，属于（填温度带），南部有一小部分热带，没有。
我国位于世界最大的大陆—东部，东临洋。
2．我国陆地面积约平方千米，居世界第位。
我国最北端位于以北黑龙江主航道的中心线上；最南端位于南沙群岛的；最东端位于和主航道中心线的相交处；最西端在新疆的高原上。
陆上邻国有个，隔海相望的国家有个。
我国临海由北向南依次是海、海、海、海，内海为和。
我国最大的岛屿是岛，第二大岛是海南岛。
3.我国的行政区划基本分为、、三级。
我国有个省级行政单位，包括个省、个自治区、个直辖市、个特别行政区。
4.根据2010年第六次人口普查，我国总人口达亿，占世界人口以上。
我国人口的特点：人口大，增长。
我国人口方面的基本国策是实行。
5.我国人口分布特点是：多少。
我国人口分布的界线：一线。
6.我国共有个民族，其中族人口最多，其他民族称为少数民族，少数民族人口最多的民族是。
汉族分布遍及全国，主要集中在部和部，少数民族主要分布在、和。
我国各民族的分布具有特点。