自主阅读第一册答案
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人教版一年级初级语文第一单元测验题及
参考答案
一、选择题
1. 下列哪个字表示“水”的意思?(A)
A. 水
B. 火
C. 木
答案:A
2. 下列哪个字表示“山”的意思?(B)
A. 水
B. 山
C. 木
答案:B
3. 下列哪个字表示“人”的意思?(A)
A. 人
B. 火
C. 木
答案:A
二、填空题
1. (空)+(空)=(空)答案:一 + 一 = 二
2. (空)+(空)=(空)答案:二 + 一 = 三
3. (空)-(空)=(空)答案:四 - 一 = 三
三、阅读理解
阅读下面的短文,回答问题。
《小猪快跑》
有一天,小猪在农场里玩耍,突然看到了一只狡猾的狼。
小猪害怕极了,决定逃跑。
小猪跑啊跑,跑到了一座山上。
狼追啊追,但是追不上了。
最后,小猪成功逃脱了狼的追赶。
1. 小猪为什么会害怕?(答案:因为看到了狡猾的狼)
2. 小猪跑到了哪里?(答案:小猪跑到了一座山上)
四、写作
请用你学过的词语,写一篇关于“我的家人”的短文。
答案:略
以上就是人教版一年级初级语文第一单元测验题及参考答案,希望对您有所帮助。
如有任何疑问,欢迎随时提问。
人教版选择性必修第一册unit4课文阅读理解+拓展训练板块一--课文阅读理解Step 1Fastreading1.What does the passage mainly talk about?A.Communication.B.Spoken language.C.Body language.D.Different cultures.答案C2.Match each part with its main idea.Para.1A.The same gesture may have different meanings in different countries. Para.2 B.Smiling has many different uses.Paras.3-4 C.Body language varies from culture to culture.Para.5 D.Both words and body language are of importance in interactions with others. Para.6 E.Some gestures seem to have the same meaning everywhere.答案Para.1D Para.2C Paras.3-4A Para.5E Para.6BStep 2CarefulreadingChoose the best answer.1.In which countries are men and women not permitted to make eye contact? A.China and Japan.B.Middle Eastern countries.C.Brazil and Germany.D.Bulgaria and southern Albania.2.How does the passage develop(展开)?A.By giving examples.B.By giving data.C.By giving definition(定义).D.By analysing facts.3.What can we learn from the passage?A.In all countries,shaking the head means “No”.B.A smile can get a person into difficult situations.C.In Russia,people favour bowing from the waist when they meet someone else.D.If a person moves his hand in circles over his stomach after a meal,that means he is full. 4.Which proverb can best describe the main idea of the passage?A.Never too old to learn.B.When in Rome,do as the Romans do.C.Four eyes see more than two.D.Every country has its own customs.5.Which of the following can NOT be conveyed(传达) through the gesture of “smiling”?A.Apology. B.Greeting.C.Anger. D.Asking for help.答案BADBCStep 3PostreadingAfter reading the passage,please fill in the following blanks.Gestures can 1._______(use) to express people’s thoughts and opinions in their interactions 2._______ other people,but in different countries the same gesture may have different meanings.For example,in some countries,looking into the eyes of the person you are talking to 3.______(be) a way to display interest,but in many Middle Eastern countries men and women should avoid 4.________(make) eye contact.In most countries,5.______(shake) one’s head means “no”,and nodding means “yes”.By 6._______(compare),in Bulgaria and southernAlbania,the gestures have the opposite meaning.In countries 7._____ France and Russia,people may kiss their friends on 8.____cheek when they meet.Elsewhere,people favour shaking hands,bowing from the waist,or nodding the head when they meet someone else.All in all,body language 9._____(vary) from culture to culture,but it is safe 10.______(follow) the golden rule—When in Rome,do as the Romans do.1.be used2 with 3 is 4making 5shaking 6 comparison 7 like 8 the 9 varies 10 to followStep 4Sentencelearning1.Words are important,but the way people stand,hold their arms,and move their hands can also give us information about their feelings._____________________________________________________________2.In many countries,shaking one’s head means “no”,and nodding means “yes”._____________________________________________________________3.And if we are feeling down or lonely,there is nothing better than seeing the smiling face of a good friend._____________________________________________________________[1句式分析]本句是一个由but连接的并列句。
2020-2021学年部编版选择性必修第一册课时分层作业16中国赋税制度的演变含解析课时分层作业(十六)中国赋税制度的演变(建议用时:35分钟)一、选择题1.唐初实行均田制、租庸调制的直接受益者是()A.大地主B.中小地主C.地方政府D.广大农民D[农民从中得到土地和自由支配劳动时间的权利,所以是直接的受益者.]2.唐朝实行的两税法产生的实际作用是()A.缓解了严重的土地兼并问题B.缓解了均田制被破坏造成的财政问题C.减轻了地主对农民的剥削D.削弱了藩镇割据的经济基础B[随着土地买卖和兼并之风盛行,政府直接支配的土地日益减少,均田制和租庸调制均无法维持,国家的财政收入大为减少.为了解决财政危机,780年,唐德宗采取宰相杨炎的建议,实行两税法。
它的实行在一定时期内使政府收入大大增加;但大地主千方百计把赋税转移到农民身上,农民负担更加沉重。
故选B项.] 3.两税法与以前的赋税制度相比,进步之处体现在()①封建国家对农民的人身控制有所放松②税源扩大,农民的赋税负担有所减轻③增加了封建政府的财政收入④一定程度上抑制了土地兼并A.①②B.①④C.②④D.③④A[两税法不论人丁多少,只按土地、资产多少征税的赋税制度,较之不论财产、土地多少,贫富如何,只按人丁多少征税的租庸调制要公平、合理得多,也进步得多,农民的负担相对减轻。
封建国家对农民的人身控制也有所放松。
故选A项.]4.王安石的募役法和唐朝的纳绢代役相比,在社会经济发展方面表现出的最大特征是()A.增加政府财政收入B.限制官僚地主在经济上的特权C.保证农民劳动时间,有利于农业生产D.商品经济发展使封建赋税由实物形态向货币形态转化D[A、B、C三项是王安石募役法和唐朝纳绢代役的共同点,而D项才是募役法在社会经济发展方面表现出的最大特征。
] 5.清朝征收“地丁银"是指()A.只征土地税,废除人丁税B.土地税、人丁税一律只收白银C.按土地与人口的多少征收白银D.将丁税平均摊入田赋统一征收D[“地丁银”的本意是将地税、丁税合二为一,故选D项.]6.据史书记载:我国古代人口从汉代以来大体在五千万左右,清康熙时只有两三千万,乾隆五十九年激增至三亿多,道光十九年(1834年)超过四亿,导致人口激增的重要原因是() A.清朝管理疆域扩大B.农耕面积增加C.地丁银制度在全国的推行D.多民族国家得到巩固C[清初实行“地丁银”制度后,汉唐以来实行了近两千年的人头税被彻底废除,意味着农民对封建国家的人身依附关系日益松弛,这是导致清朝人口激增的重要原因。
1.2 集合的基本关系1. 了解集合之间包含与相等的含义,能识别给定集合的子集.2. 理解子集.真子集的概念.3. 能使用venn 图表达集合间的关系,体会直观图示对理解抽象概念的作用。
重点:集合间的包含与相等关系,子集与其子集的概念. 难点:难点是属于关系与包含关系的区别.一、 预习导入阅读课本7-8页,填写。
1.集合与集合的关系(1)一般地,对于两个集合A ,B ,如果集合A 中_____________元素都是集合B 中的元素,我们就说这两个集合有__________关系,称集合A 为B 的______.记作:A _______ B (或B ________ A )读作:A 包含于B(或B 包含A).图示:(2)如果两个集合所含的元素完全相同(A ______ B 且B ______ A ),那么我们称这两个集合相等.记作:A ______B 读作:A 等于B.图示:2. 真子集:若集合B A ⊆,存在元素x ______ B 且x ______ A ,则称集合A 是集合B 的真子集。
记作:A ______B (或B ______A )读作:A 真包含于B (或B 真包含A )3.空集:__________________的集合称为空集,记作:∅.规定:空集是任何集合的子集。
4.常用结论(1)A __________ A (类比a a ≤)(2)空集是__________的子集,是_____________的真子集。
(3)若,,A B B C ⊆⊆则A __________ C (类比b a ≤,c b ≤则c a ≤)(4)一般地,一个集合元素若为n 个,则其子集数为________个,其真子集数为________个,特别地,空集的子集个数为________,真子集个数为________。
1.判断(正确的打“√”,错误的打“×”)(1)空集中只有元素0,而无其余元素. ( )(2)任何一个集合都有子集. ( ) (3)若A =B ,则A ⊆B . ( )(4)空集是任何集合的真子集. ( )2.用适当的符号填空(1) a______{a,b,c} (2) 0_______{x|x 2=0} (3) ∅________{x ∈R|x 2+1=0} (4) {0,1}_____N(5) {∅}_____{x|x 2=x} (6){2,1}____{x|x 2−3x +2=0} 3.设a ∈R ,若集合{2,9}={1-a,9},则a =________.例1 (1)写出集合{0,1,2}的所有子集,并指出其中哪些是它的真子集;(2)填写下表,并回答问题:由此猜想:含n 个元素的集合{a 1,a 2,…,a n}的所有子集的个数是多少?真子集的个数及非空真子集的个数呢?例2 下列能正确表示集合M={-1,0,1}和N={x|x 2+x=0}的关系的维恩图是( )例3 已知集合A={x|-5<x<2},B={x|2a-3<x<a-2}. (1)若a=-1,试判断集合A,B 之间是否存在子集关系; (2)若A ⊇B,求实数a 的取值范围.变式1. [变条件] 【例3】(2)中,是否存在实数a,使得A ⊆B?若存在,求出实数a 的取值范围;若不存在,试说明理由.变式2. [变条件] 若集合A={x|x<-5或x>2},B={x|2a-3<x<a-2},且A ⊇B,求实数a 的取值范围.1.已知集合A ={2,-1},集合B ={m 2-m ,-1},且A =B ,则实数m 等于( )A .2B .-1C .2或-1D .42.已知集合A ={x|-1-x<0},则下列各式正确的是( )A .0⊆AB .{0}∈AC .∅∈AD .{0}⊆A3.已知集合A ⊆{0,1,2},且集合A 中至少含有一个偶数,则这样的集合A 的个数为( )A .6B .5C .4D .34.已知集合A ={x|x =3k ,k ∈Z},B ={x|x =6k ,k ∈Z},则A 与B 之间的关系是( )A .A ⊆BB .A =BC .A BD .A B5.已知集合A ={x|ax 2+2x +a =0,a ∈R},若集合A 有且仅有两个子集,则a 的值是( )A .1B .-1C .0,1D .-1,0,16.设x ,y ∈R ,A ={(x ,y)|y =x},B ={(x ,y)|yx =1},则A ,B 的关系是________.7.已知集合A ={x|x<3},集合B ={x|x<m},且A ⊆B ,则实数m 满足的条件是________. 8.已知A ={x ∈R|x<-2或x>3},B ={x ∈R|a≤x≤2a-1},若B ⊆A ,求实数a 的取值范围.答案小试牛刀1.答案:(1) × (2) √ (3) √ (4)× 2.(1)∈ (2)= (3)= (4)⊆ (5)⊈ (6)= 3.-1 自主探究例1【答案】见解析【解析】分析:(1)利用子集的概念,按照集合中不含任何元素、含有一个元素、含有两个元素、含有三个元素这四种情况分别写出子集.(2)由特殊到一般,归纳得出. 解:(1)不含任何元素的子集为⌀;含有一个元素的子集为{0},{1},{2}; 含有两个元素的子集为{0,1},{0,2},{1,2};含有三个元素的子集为{0,1,2}. 故集合{0,1,2}的所有子集为⌀,{0},{1},{2},{0,1},{0,2},{1,2},{0,1,2}. 其中除去集合{0,1,2},剩下的都是{0,1,2}的真子集.(2)由此猜想:含n 个元素的集合{a 1,a 2,…,a n}的所有子集的个数是2n,真子集的个数是2n-1,非空真子集的个数是2n-2. 例2【答案】B【解析】∵N={x|x 2+x=0}={x|x=0或x=-1}={0,-1},∴N ⫋M,故选B. 例3【答案】见解析【解析】分析:(1)令a=-1,写出集合B,分析两个集合中元素之间的关系,判断其子集关系;(2)根据集合B 是否为空集进行分类讨论;然后把两集合在数轴上标出,根据子集关系确定端点值之间的大小关系,进而列出参数a 所满足的条件.解:(1)若a=-1,则B={x|-5<x<-3}.如图在数轴上标出集合A,B.由图可知,B ⫋A.(2)由已知A ⊇B. ①当B=⌀时,2a-3≥a-2,解得a ≥1.显然成立.②当B ≠⌀时,2a-3<a-2,解得a<1.由已知A ⊇B,如图在数轴上表示出两个集合, 由图可得{2a -3≥-5,a -2≤2,解得-1≤a≤4.又因为a<1,所以实数a 的取值范围为-1≤a<1变式1.【答案】见解析【解析】因为A={x|-5<x<2},所以若A ⊆B,则B 一定不是空集.此时有{2a -3≤-5,a -2≥2,即{a ≤-1,a ≥4,显然实数a 不存在.变式2.【答案】见解析【解析】①当B=⌀时,2a-3≥a-2,解得a ≥1.显然成立.②当B ≠⌀时,2a-3<a-2,解得a<1. 由已知A ⊇B,如图在数轴上表示出两个集合,由图可知2a-3≥2或a-2≤-5,解得a ≥52或a ≤-3.又因为a<1,所以a ≤-3. 综上,实数a 的取值范围为a ≥1或a ≤-3.当堂检测1-5.CDADD 6.B A 7.m≥3 8.【答案】见解析 【解析】∵B ⊆A ,∴B 的可能情况有B ≠∅和B =∅两种. ①当B =∅时,由a>2a -1,得a<1. ②当B≠∅时,∵B ⊆A ,∴⎩⎪⎨⎪⎧a>3,a≤2a-1或⎩⎪⎨⎪⎧2a -1<-2,a≤2a-1成立,解得a>3;综上可知,实数a 的取值范围是{a|a<1或a>3}.。
一年级上册“会看的小眼睛”自主阅读课教学实录教学目标:1.自主识字,能正确流利地朗读儿歌。
2. 多形式诵读儿歌,自主交流体会,积累美词佳句,背诵自己喜欢的诗文。
3.激发孩子喜爱儿歌的情感,培养细心、爱观察的好习惯。
教学重点:自主识字,能正确流利地朗读儿歌。
教学难点:培养学生细心、爱观察的好习惯,激发孩子喜爱儿歌的情感。
教学理念:《语文课程标准》明确指出:小学阶段课外阅读不少于145万字,仅靠课文阅读是远远不够的。
所以指导学生进行有效的课外阅读显得十分必要。
本学期,我校语文科组开展了单元主体教学的试验,减少了讲读课文的时间,把时间留出来了,干什么?阅读去!让孩子用课内的时间畅游书海!对于孩子来说,让他们在读书中体验快乐,激发读书兴趣是非常重要的。
因此,运用讨论、表演等学生喜欢的活动形式激发他们的读书兴趣,感受读书的快乐,并从活动中渗透一些简单的读书方法,让学生学有所获。
教学准备:课件教学流程:一、复习导入,激发兴趣。
1.复习导入师:孩子们,你们喜欢儿歌吗?你最喜欢哪一篇?背给大家听一听。
(学生积极举手,背诵儿歌)师:这个单元我们学了那几首儿歌?一起拍手背。
(全班学生边拍手,边背诵儿歌)2.小结引入课题师:今天呀,就让我们一起再开学习两首朗朗上口的儿歌,感受儿歌的节奏之美,体会儿歌给我的小启示。
【评析】:充分利用课程资源,引导学生联系旧知,体验情感。
激发了学生的学习兴趣,感知了儿歌的特点,有利于展开教学活动。
二、指导阅读,掌握方法。
1.自读提示:用自己喜欢的方式读课文,不懂得字词画下来,看生字宝宝的拼音帽子多读几次。
师:我们打来《新语文主题阅读》,一起来读第六单元“会看的小眼睛”的41课《小河里的标点符号》,用你自己喜欢的方式读,注意借助拼音读准字音。
遇到不认识的生字圈出来,多读几次。
(学生积极举手,背诵儿歌)2.小老师正因师:很多小朋友都已经做好了,让我们同坐互相做小老师,帮助同学正正读因。
师:那位小朋友愿意做小老师,带着同学们一起朗读?【评析】:一年级的孩子已初步具备认读生字的能力,把主动权交给学生,有利于调动学生识字的积极性和创造性,培养学生识字的能力。
第3节细胞中的糖类和脂质[学习目标] 1.概述糖类有多种类型,它们既是细胞的重要结构成分,又是生命活动的主要能源物质。
2.举例说出不同种类的脂质对维持细胞结构和功能有重要作用。
一、细胞中的糖类1.元素组成和功能(1)元素组成:一般由C、H、O构成。
(2)功能:细胞中主要的能源物质。
2.分类(1)单糖①含义:不能水解的糖类。
②种类:葡萄糖、果糖、半乳糖、核糖和脱氧核糖等,其中葡萄糖是细胞生命活动所需要的主要能源物质。
(2)二糖①含义:由两分子单糖脱水缩合形成的糖。
②种类:蔗糖在糖料作物甘蔗和甜菜里含量丰富;麦芽糖在发芽的小麦等谷粒中含量丰富;乳糖在人和动物乳汁中含量丰富。
(3)多糖种类淀粉糖原纤维素几丁质(壳多糖) 基本单位葡萄糖葡萄糖葡萄糖-作用植物体内的储能物质人和动物细胞的储能物质构成植物细胞细胞壁的主要成分甲壳类动物和昆虫的外骨骼的重要组成成分分布粮食作物的种子中,植物变态的茎或根及一些植物的果实中主要分布在人和动物的肝脏和肌肉中植物的茎秆和枝叶及所有植物细胞的细胞壁广泛存在于甲壳类动物和昆虫的外骨骼中判断正误(1)所有的糖都能和斐林试剂反应生成砖红色沉淀()(2)糖类都能为生命活动提供能量,细胞内的糖都是能源物质()(3)人和动物血液中葡萄糖含量低于正常时,肝糖原、肌糖原便会分解产生葡萄糖及时补充() 答案(1)×(2)×(3)×糖类的分类及功能1.请自主阅读,归纳糖类的分类及功能种类常见种类分布功能单糖五碳糖核糖(C5H10O5)动植物细胞组成RNA 脱氧核糖(C5H10O4)组成DNA六碳糖(C6H12O6)葡萄糖细胞中主要的能源物质果糖植物细胞(主要) -半乳糖动物细胞(主要) -二糖(C12H22O11)蔗糖(蔗糖→葡萄糖+果糖)甜菜、甘蔗、水果等植物细胞中,可用于加工红糖、白糖、冰糖能水解成单糖而供能麦芽糖(麦芽糖→葡萄糖+葡萄糖)发芽的小麦等植物细胞中乳糖(乳糖→葡萄糖+半乳糖)人和动物的乳汁中多糖(C6H10O5)n淀粉(淀粉→许多葡萄糖)玉米、小麦、水稻、马铃薯、山药等植物细胞中植物细胞中重要的储能物质纤维素(纤维素→许多葡萄糖)植物细胞壁植物细胞壁的主要成分糖原(糖原→许多葡萄糖)肝糖原主要存在于人和动物的肝脏和肌肉中糖原是人和动物细胞中重要的储能物质,肝糖原可调节血糖含量,肌糖原可为肌肉供能肌糖原几丁质(壳多糖) 广泛存在于甲壳甲壳类动物和昆虫的外类动物和昆虫的骨骼的重要组成成分外骨骼中2.细胞中的糖类按化学性质可分为还原糖和非还原糖,请分别列举。
unit 1"N","Y","Y","N","N","Y","NG""enhance your learning experience","suits you best","sleep on it""A","D","A","C","D""C","A","D","B","D""美国人的爱情和浪漫始于约会。
","朋友甚至会安排你与不认识的人相亲。
","美国人对约会的看法与其他国家的人不同。
","美国的电影、电视节目和书籍都描绘了恋爱中的人们。
","美国人知道没有任何爱情是完美的,但他们仍然尝试找到理想中的恋人。
" unit 2"N","N","Y","Y","N","Y","NG""online quit forums","push them out of your head","figure out what went wrong""D","B","A","C","D""B","C","D","B","A""Ask her boss for a raise in salary.","To celebrate his wife\'s victory or sooth her wounds.", "a second card","love without measure","Family love."unit 3"Y","Y","NG","Y","N","N","Y""notice what people need","focus","fearful and anxious""D","A","A","C","B""B","D","B","C","A""她搭乘的公共汽车在清晨拥堵的交通中缓慢行驶,导致她第一次上班就迟到了几分钟。
", "尽管她确信这是两周前金先生面试她时待过的房间,但现在看来却很不一样了。
","她想,在房间的另一端肯定有人刚刚讲过很好听的笑话,因为当她进来时爆发出一阵笑声。
","很快他们都回到了自己的办公桌,也就几秒钟的时间,每个人都开始努力工作了。
","他埋头工作,几乎没看她一眼,只是告诉她坐下等,金先生随时都会到。
"unit 4"Y","N","N","NG","Y","Y","N""A list of priorities","many useful and fruitful activities","living with nothing but work in mind""B","B","C","D","C""D","C","C","B","D""hurriedly","apologize","change","puzzled","occupies","express","unfulfilled","sign","responsible","displayed"unit 5"D","A","C","B","A","D","B""lingering and people-watching", "dine","ballets","fairy tale""C","C","B","C","D""B","B","D","B","C""Ready and able to conquer the world.", "Did not talk to each other during the test.", "A frightened/worried expression ","No one would complete the questions.", "Education is endless."unit 6"NG","Y","N","Y","N","Y","N""new opportunities","weak points","too much time""A","C","B","D","A""B","C","A","C","D""他很快就习惯了购置新车,添买昂贵的衣服,对自己基本上是想要什么就买什么。
", "钱快用完时,我还在电脑、技术玩具,甚至是我们根本就养不起的车上耗费金钱。
", "但是当他突然意识到他和他的新婚妻子刷信用卡欠债7万多美元且无计可施时,他说那才是对他敲响了警钟。
","我学会了如何通过日常活动来娱乐自己,如跑步、骑车、徒步旅行和绘画。
"unit 7"Y","N","N","Y","N","Y","NG""sensible","balance","available""D","A","C","B","B""D","D","B","A","B""differ", "opportunities", "reared", "attain", "intelligence", "identical", "foster", "isolated", "intellectually", "roughly"unit 8"B","D","C","D","C","C","D""achievements", "succeed", "profit""D","B","D","C","B""B","C","D","C","C""Only one move.", "surprised/amazed","He seemed to be overmatched.", "He dropped his guard.", "grab his left arm"unit 9"Y","Y","N","N","Y","NG","N""motivated","solve","desirable""A","B","D","C","B""A","B","C","A","D""involves", "experienced","truly","events","available","reliable","variety","informed", "Numerous","as long as"unit 10"N","N","Y","NG","Y","N""as accurately as possible","Recording everything / Keeping a fitness journal", "yourself going in circles");"D","C","B","B","A""C","B","C","D","A""fortune","accounts","withdrew","declare","mention","suspicious","remained","investigated","attached","charged");unit 11"Y","N","Y","N","NG","Y","remind","achievement","rewarding");.."C","C","C","B","C""C","D","C","A","D""Some of her high notes needed improvement.", "For fear of disturbing her family.","She was shy and sensitive about her high notes.", "Stopped to examine all his tires.", "Puzzled.");unit 12"N","Y","NG","Y","N","Y","N""communication and involvement","the fear of breaking up","learn to resent the pressure");"B","B","D","A""C","B","A","A","D""同理,大气层中也有一些气体阻止太阳释放的热量逸出。