课时提升作业十一
Module 4Grammar
Ⅰ. 用所给单词的适当形式填空
1. He does nothing but __________ (talk).
2. The man could do nothing but __________ (wait).
3. We have no choice but __________ (leave).
4. —How did you spend your weekend, Joe?
—I didn’t find anything inter esting for me but __________ (do)some washing instead of my mother.
5. She wished that he was as easy __________ (please)as her mother, who was always delighted with perfume.
6. The work needs __________________________ (complete)by the end of the week.
7. Tom pretended __________ (write)something when his mother came in.
8. The news reporters hurried to the airport, only __________ (tell)the film stars had left.
9. It’s my honour __________ (invite)to spend time with you.
10. The doctor urged me __________ (have)an X-ray test, and then he could make a conclusion.
答案：1. talk 2. wait 3. to leave 4. to do
5. to please
6. to be completed/completing
7. to be writing 8. to be told
9. to be invited 10. to have
Ⅱ. 完成句子
1. 这把椅子坐起来很舒服。
The chair is comfortable __________ .
2. 他病得太重, 不能完成那个项目。
He was too ill __________ that program.
3. 我不知道要不要去开会。
I don’t know ____________________________ or not.
4. 我迫使他们把钱还给我。
I _____________ me the money back.
5. 为了赶上火车, 我们最好赶紧乘出租车去车站。
________________ , we’d better hurry to the station by taxi.
6. 我不得不告诉她真相。
I __________ tell her the truth.
7. 她什么都不想做, 只想哭一场。
She wanted nothing __________ .
8. 他搬起石头砸了自己的脚。
He lifted a rock __________ it on his own feet.
9. Fred没有钱, 所以他决定找一份工作。
Fred didn’t have any money, so he decided ________________ .
10. 请允许我介绍Mr White给你们。
Please allow me ___________________ to you.
答案：1. to sit on
2. to carry out
3. whether to go to the meeting
4. made them give
5. To catch the train
6. can’t but
7. but to cry
8. only to drop
9. to look for a job
10. to introduce Mr White
Ⅲ. 完形填空
(2015·烟台高一检测) Do you find yourself pulling away from others, especially if you’ve experienced deep sadness? Maybe the most1thing most of us can do is to be with people when we don’t feel like be ing around anybody.
A man whose wife died of cancer found himself wanting to be2. In time he dropped out of his community and3all its activities. After work he returned straight home to a(n)4house. His free time was spent watching TV or working in the basement.
His friends became5. One came and invited him over for6 the next evening. The two old friends sat by a warm fireplace. The visitor
mentioned the invitation and7him to come. “You may need to allow others to share your8. ”
The man responded that he figured he was better off9being around other people. He said, “It’s too difficult to10any more. ”
They sat in11watching the wood burn in the fireplace. Then the visitor did an unusual thing. He took the tongs by the fireplace, reached into the fire, 12 a flaming ember(炭块)and laid it down by itself on the ground. “That’s you, ”he said.
The men sat13the red-hot ember quietly. It slowly14its light. Neither man looked away as the once-hot coal15became cold. Then the man said, “I know what you want to tell me. I’ll16and dine with you tomorrow evening. ”
We cannot17in any healthy way by ourselves. The leaf needs the branch. The branch needs the trunk. The trunk needs the roots. And the roots need the rest of the18. This means we are19. And in that connection, life and vitality(活力)are found. So next time when you are sad, don’t20to open your heart to others.
【文章大意】烧红的炭块离开火炉就会渐渐熄灭, 一个人脱离了群体和朋友就会变得暗淡无光。故事中的男主人公沉浸在丧妻之痛中无法自拔, 将自己封闭起来, 不与外界接触。但在朋友的劝说下, 他最终重新参与到了社交活动中。
1. A. brilliant B. necessary
【推荐】2020年外研版高中英语必修一（全册）精品教案汇总 第一学期高一英语讲义1 Book 1 Module 1 My First Day at Senior High 课时1词汇; 课型A（基础）；课长30分钟 一、词汇互译 1.____________________ 换句话说 2. ____________________ 期待, 盼望 3. ____________________ 在……开始的时候 4. ____________________ 在……结束的时候 5. ____________________ 上大学 6. ____________________ 被（划）分成…… 7. take part in ____________________ 8. ____________________ 理科 9. ____________________ A 与 B 之间的区别 10. be similar to … ____________________ 11. ____________________ 对…的态度 12. teaching method ____________________ 13. ____________________ 写下, 记下 14. nothing like ____________________ 15. have fun ____________________ make fun of … ____________________ 16. 倍数表达法：
A is three times____________________ B. A is three times ____________________B. A is three times ____________________B. 17. ____________________ 不同于… 18. ____________________ 和…一样 二、词汇运用 1.the differences between A and B 你知道英语和美语有什么区别吗？ _______________________________________________________________________________ 2.one’s attitude to \ towards sth. (doing sth.) 对于学习英语, 你的态度是怎样的？ _______________________________________________________________________________ 3.behave oneself/behave badly 老实点！ _______________________________________________________________________________ 4.be friendly to 他对待别人总是很友好。 _______________________________________________________________________________ 5.introduce A to B\oneself 首先请允许我介绍一下自己。 _______________________________________________________________________________ 6.in other words 你明天不用来上班了。换句话说, 你被炒了。 ______________________________________________________________________________
单词 1 across prep. & adv. 横过，穿过；从一边到另一边；在对面 come across 偶然遇到 get across 通过；使被理解；解释清楚 10 meters across 宽10米 【词语辨析】 across, through和 over across表示从一定范围的一边到另一边，且在物体的表面上或沿着某一条线的方向而进行的动作，其含义常与on 有关；through表示动作在空间内进行，其含义常与in有关；over表示“越过”，指越过较高物体，从一侧到另一侧。 【活学活用】 (1)My house is just ________the street. 我的房子就在马路对面。 2 face n. 脸；表面；(物体的)正面，表面 v. 面对，面向；面临；应付，应对 lose one's face 丢脸；丢面子 make a face 做鬼脸 in the face of 面对 be faced with 面临；面对 face to face 面对面 face south/the park 面向南方/公园 face the fact 正视现实 3 range n. [C]山脉；列；排；(变动或浮动的)幅度；[C，U](知识、知觉、听觉等的)范围；(枪支、导弹等的)射程，最大航程 v. (在一定范围内)变化，变动；安排；徘徊 be in/within range 在范围以内 be beyond/out of range 超出范围；在范围以外 a wide/broad range of 范围广泛的 range from…to…从……到……不等 4 situated adj. 坐落(某处)的；位于(某处)的 situate v. 使位于；使处于 situation n. 情形；位置；境遇 be situated/located/at/in/on＋n. 位于；坐落于 be well/badly/situated 处境很好/困难5 opposite prep. 在……对面 adj. 相对的；对面的；对立的；相反的 n. 对立面；反面 just/quite the opposite 恰恰相反 in the opposite direction 朝相反的方向 the man opposite 对面的那个人 on the opposite side of the street 在街的对面 【词语辨析】 opposite和contrary (1)opposite指位置、方向、地位、性质、意义等的对 立、相反。 (2)contrary指“两物朝相反的方向发展”，含有“相 互冲突，不一致”的意思。on the contrary“正相反”，经常用来引出相反的观点或事实。 6 sign v. 签署；签字；签约；雇佣；做手势(示意) n. 迹象；征兆；手势；信号；标志；指示牌；符号 sign to sb to do sth 示意某人做某事 sign up 经报名参加 sign in/out 签到/签名登记离开 sign for 签收 sign on 签约受雇(或入伍) sign an agreement 签署协议 road signs 路标 短语 1 work on 从事，忙于 work at 研究，努力学习 work out 计算，算出，找到答案； 弄懂；制订出；锻炼，健身； 按某种方式发展，结果 work as 作为……工作 at work 在上班 【短语辨析】 work on和work at work on往往指做某种具体的工作，翻译起来比较灵活；而work at更倾向于“钻研”或“努力学习”。 如： He is working on a new novel. 他正在写一本新的小说。 The little boy was working on a branch with a knife to make a toy gun. 小男孩正在用刀子削树枝做玩具手枪。 He is working at English grammar. 他正在努力学习英语语法。 (2)根据语境选择work out恰当的英语释义 a．to calculate sth b．to train the body by physical exercise c．to develop in a particular way, turn out d．to find the answer to sth; to solve sth; to understand e．to plan or think of sth 1
高中英语外研版必修三单词表 Module 1 1. across prep. 横过；穿过 2. boot n. 长统靴；皮靴 3. continental adj. 大陆的；大洲的 4. face vt. 面向；面对 5. range n. 山脉 6. landmark n. 标志性建筑 7. gallery n. 美术馆；画廊 8. situated adj. 坐落（某处）的；位于（某处）的 9. symbol n. 象征；符号 10. located adj. 位于 11. architect n. 建筑师 12. project n. 计划；项目；工程 13. sculpture n. 雕刻；泥塑 14. birthplace n. 发源地 15. civilization n. 文明 16. ancient adj. 古代的 17. opposite prep. 在……对面 18. sign vt. 签署 19. agreement n. 协议；契约 20. whereabouts adv. 在哪里 21. govern vt. 统治；治理 22. head n. 领袖；领导人 23. representative n. 代表 24. parliament n. 国会；议会 25. region n. 地区；区域 26. geographical adj. 地理的 27. feature n. 特点 28. produce n. 产品；农产品 because of 因为；由于 be known as 作为……而出名/闻名 ever since 自从……一直 in terms of 据……；依据…… on the other hand 另一方面；反过来说little by little 一点点地；逐渐地 Module 2 1. hunger n. 饥饿 2. income n. 收入 3. poverty n. 贫穷 4. human n. （与动物等对比的）人 5. development n. 发展 6. index n. 指数 7. measure vt. 测定；测量；评估 8. goal n. 目标 9. expectancy n. （根据概率得出的）预期数额 10. position n. 位置 11. educate vt. 教育；培养；训练 12. figure n. 数字 13. household n. 一家人；家庭 14. homeless adj. 无家可归的 15. charity n. 慈善团体 16. crowded adj. 拥挤的 17. freeway n. 高速公路 18. inhabitant n. 居民 19. similarity n. 类似；相似 20. unfortunate adj. 不幸的；遗憾的 21. location n. 位置；所在地 22. tourism n. 旅游业 23. transport n. 交通工具 24. industrial adj. 工业的 25. polluted adj. 受到污染的 26. smart adj. 漂亮的；整洁的；时髦的 27. vast adj. 巨大的；庞大的；浩瀚的 28. entertainment n. 娱乐 29. exchange n. 交换 at the top of 在……顶端 at the bottom of 在……底部 make effort 努力 be connected with 与……有联系；与……有关 be close to 接近；靠近 Module 3 1. disaster n. 灾难
外研版高中英语必修三课文 3.1 Great European Cities Paris Paris is the capital and largest city of France, situated on the River Seine. It is one of the most beautiful cities in the world and is visited by more than eight million tourists every year. The most popular place for tourists is the Eiffel Tower, the famous symbol of Paris. One of the world's largest art galleries, the Louvre, is also located in Paris. The city is also famous for its restaurants, cafés and theatres. About two-thirds of France's artists and writers live in Paris. Barcelona Barcelona is the second largest city of Spain and is situated on the northeast coast, about five hundred kilometres east of the Spanish capital, Madrid. One of Barcelona's most famous landmarks is the Church of the Sagrada Familia, which was designed by an architect called Antonio Gaudi. Gaudi worked on the project from 1882 until his death in 1926. The church hasn't been finished yet! Florence Florence is an Italian city which became famous because of the Renaissance, a great artistic movement which began in the 1300s and lasted for three hundred years. During the Renaissance, some of the greatest painters of all time lived and worked in Florence. Many of Florence's most beautiful paintings and sculptures were produced by great artists such as Leonardo da Vinci and Michelangelo. Florence is visited each year by about a million tourists who come to see the art galleries, churches and museums. The Uffizi Palace is the most famous art gallery in the city. Athens Athens, the capital of Greece, is known as the birthplace of western civilisation. Two thousand four hundred years ago, it was the world's most powerful city. Buildings such as the Parthenon on the Acropolis Hill
一小测验 Ⅰ.课标单词 1. __________ adj. 热心的，热情的→enthusiasm n. 热心；热情 2. __________ adj. 令人惊异的→ _______ v. 使吃惊→ ________ adj. 感到吃惊的→ amazement n. 惊愕，惊异 3. __________ n. 信息→ inform vt. 通知，告知 4. __________ n. 指示，用法说明→ instruct v. 教导，命令，指示 5. _________ adj. 令人厌烦的→ _______ adj. (对某人/事物)厌倦的，烦闷的→ ______ vt. 使厌烦 6. ___________ adj. 尴尬的，难堪的→ __________ v. 使困窘，使局促不安→ _____________ adj. 令人为难的→ embarrassment n. 窘迫；为难 7. __________ n. 行为，举止→behave v. 举动，举止 8. __________ n. 描述；形容；描写→ describe vt. 描写，记述 9. _______ vt. 使(人)印象深刻；使铭记→ __________ n. 印象，感想→ impressive adj. 令人印象深刻的 10. __________ n．纠正，改正→correct adj.正确的→ _______ v．改正，纠正，批改 11. __________ v. 鼓励，激励→ __________ adj. 鼓舞人心的→ ___________ adj. 受到鼓舞的，更有信心的→ encouragement n. 鼓励，奖励 12．enjoyment n. 享受，乐趣→ _______ v. 享受，喜欢→ ________ adj. 令人愉快的，有乐趣的 13．fluency n. 流利，流畅→ _______ adj. 流利的，流畅的 14. _____________ adj. 失望的→ ______________ adj. 使人失望的，令人失望的→ disappoint vt. 使失望→ _____________ n. 失望 15. _________ n. 助手，助理→ assist v．帮助 Ⅱ.常用短语 1．____________________________________与……相似 2．____________________________________某人对(做)某事的态度 3．____________________________________离……远，远非 4．____________________________________一点不像，与……完全不同 5．____________________________________玩得很开心 6．____________________________________起初，一开始 7．____________________________________换句话说 8．____________________________________期待；盼望 9．____________________________________对……印象深刻 10．____________________________________在……开始的时候 11．____________________________________在……结束的时候 12．____________________________________被(划)分成…… 13．____________________________________参加
外研版高中英语必修三单词表（带音标） 课本单元单词音标中文 必修３1across[?'kr??s]prep.横过；穿过 必修３1boot[bu?t]n.长统靴；皮靴 必修３1continental[?kɑnt??nentl]adj.大陆的；大洲的 必修３1face[fe?s]vt.面向；面对 必修３1range[re?nd?]n.山脉 必修３1landmark[?l?nd?mɑrk]n.标志性建筑 必修３1gallery[?ɡ?l?ri]n.美术馆；画廊 必修３1situated[?s?t?u?e?t?d]adj.坐落/位于(某处)的必修３1symbol[?s?mb(?)l]n.象征；符号 必修３1located[l???ke?t?d]adj.位于 必修３1architect[?ɑ?k?tekt]n.建筑师 必修３1project[?pr?d?ekt]n.计划；项目；工程 必修３1sculpture[?sk?lpt??]n.雕刻；泥塑 必修３1birthplace[?b??θple?s]n.发源地 必修３1civilisation[?s?v?la??ze???n]n.文明 必修３1ancient[?e?n??nt]adj.古代的 必修３1opposite[??p?z?t]prep.在…对面 必修３1sign[sa?n]vt.签署 必修３1agreement[??ɡri?m?nt]n.协议；契约 必修３1whereabouts[?we?r??ba?ts]adv.在哪里 必修３1govern[?ɡ?v(?)n]vt.统治；治理 必修３1head[hed]n.领袖；领导人 必修３1representative[repr??zent?t?v]n.代表 必修３1parliament[?pɑ?l?m?nt]n.国会；议会 必修３1region[?ri?d??n]n.地区；区域 必修３1geographical[?d?i???ɡr?f?k(?)l]adj.地理的 必修３1feature[fi?t??]n.特点 必修３1produce[pr?'dju?s]n.产品；农产品 必修３2hunger[?h??ɡ?]n.饥饿 必修３2income[??nk?m]n.收入 必修３2poverty[/?p?v?ti ]n.贫穷 必修３2human['hju?m?n]n.(与动物等对比的)人必修３2development[d??vel?pm?nt]n.发展 必修３2index[??ndeks]n.指数 必修３2measure[?me??]vt.测定；测量；评估 必修３2goal[g??l]n.目标 必修３2expectancy[?k?spekt?nsi](根据概率得出的)预期数额必修３2position[p??z??(?)n]n.位置 必修３2educate[?edj?ke?t]vt.教育；培养；训练 必修３2figure[?f?ɡ?]n.数字 必修３2household[?ha?s?h??ld]n.一家人；家庭 必修３2homeless['h??ml?s]adj.无家可归的 必修３2charity['t??r?ti]n.慈善团体 必修３2crowded[?kra?d?d]adj.拥挤的 必修３2freeway[?fri?we?]n.高速公路 必修３2inhabitant[?n?h?b?t?nt]n.居民 必修３2similarity[?s?m??ler?ti]n.类似；相似 必修３2unfortunate[?n?f?rt??n?t]adj.不幸的；遗憾的 必修３2location[l??'ke???n]n.位置；所在地 必修３2tourism[?t??r?z(?)m]n.旅游业 必修３2transport[tr?ns?p??t]n.交通工具 必修３2industrial[?n?d?stri?l]adj.工业的 必修３2polluted[p?'lu?t?d]adj.受到污染的 必修３2smart[smɑ?t]adj.漂亮的;整洁的;时髦的必修３2vast[vɑ?st]adj.巨大的;庞大的;浩瀚的必修３2entertainment[ent??te?nm?nt]n.娱乐 必修３2exchange[?ks?t?e?nd?]n.交换 必修３3disaster[d??zɑ?st?]n.灾难 必修３3flood[fl?d]n.洪水
Words and expressions in NSE SH books 1-8 必修1 1课 1.academic adj. 学术的(SH1 M1 P1) 2.province n.省(SH1 M1 P2) 3.enthusiastic adj.热心的(SH1 M1 P2) 4.amazing adj.令人吃惊的；令人惊讶的 (SH1 M1 P2) https://www.doczj.com/doc/ab15273881.html,rmation n.信息 (SH1 M1 P2) 6.website n.网站；网址(SH1 M1 P2) 7.brilliant adj. （口语）极好的(SH1 M1 P2) https://www.doczj.com/doc/ab15273881.html,prehension n.理解；领悟(SH1 M1 P2) 9.instruction n.（常作复数）指示；说明(SH1 M1 P2) 10.method n.方法(SH1 M1 P3) 11.bored adj.厌烦的; 厌倦的(SH1 M1 P3) 12.embarrassed adj.尴尬的；难堪的；困窘的(SH1 M1 P3) 13.attitude n.态度(SH1 M1 P3) 14.behaviour n.行为；举动(SH1 M1 P3) 15.previous adj. 以前的；从前的(SH1 M1 P3) 16.description n.记述；描述(SH1 M1 P3) 17.amazed adj.吃惊的；惊讶的(SH1 M1 P2) 18.embarrassing adj.令人尴尬的；令人难堪的(SH1 M1 P4) 19.technology n.技术(SH1 M1 P4) 20.impress vt.使印象深刻(SH1 M1 P4) 21.correction n.改正；纠正(SH1 M1 P5) 22.encouragement n.鼓励；激励(SH1 M1 P5) 23.enjoyment n.享受；乐趣(SH1 M1 P5) 24.fluency n.流利；流畅(SH1 M1 P5) 25.misunderstanding n.误解(SH1 M1 P5) 26.disappointed adj.失望的(SH1 M1 P6) 27.disappointing adj.令人失望的(SH1 M1 P7) 28.system n.制度；体系；系统(SH1 M1 P7) 29.teenager n.少年(SH1 M1 P8) 30.disappear vi.消失(SH1 M1 P8) 31.move vi.搬家(SH1 M1 P8) 32.assistant n.助手；助理(SH1 M1 P8) 33.cover vt.包含(SH1 M1 P9) 34.diploma n.文凭；毕业证书(SH1 M1 P9)
1、为了了解全校240名学生的身高情况，从中抽取40名学生进行测量，下列说法正确的是 A．总体是240 B、个体是每一个学生 C、样本是40名学生 D、样本容量是40 2、为了正确所加工一批零件的长度，抽测了其中200个零件的长度，在这个问题中，200个零件的长度是（） A、总体 B、个体是每一个学生 C、总体的一个样本 D、样本容量 3、一个总体中共有200个个体，用简单随机抽样的方法从中抽取一个容量为20的样本，则某一特定个体被抽到的可能性是。 4、从3名男生、2名女生中随机抽取2人，检查数学成绩，则抽到的均为女生的可能性是。 例2、从忆编号为1～50的50枚最新研制的某种型号的导弹中随机抽取5枚来进行发射实验，若采用每部分选取的号码间隔一样的系统抽样方法，则所选取5枚导弹的编号可能是 A．5，10，15，20，25 B、3，13，23，33，43 C．1，2，3，4，5 D、2，4，6，16，32 1、从2005个编号中抽取20个号码入样，采用系统抽样的方法，则抽样的间隔 为（）A．99 B、99，5 C．100 D、100，5
2、从学号为0～50的高一某班50名学生中随机选取5名同学参加数学测试， 采用系统抽样的方法，则所选5名学生的学号可能是（）A．1，2，3，4，5 B、5，16，27，38，49 C．2, 4, 6, 8, 10 D、4，13，22，31，40 4、某小礼堂有25排座位，每排20个座位，一次心理学讲座，礼堂中坐满 了学生，会后为了了解有关情况，留下座位号是15的所有25名学生进 行测试，这里运用的是抽样方法。 5．某高中共有900人，其中高一年级300人，高二年级200人，高三年级40人，现采用分层抽样抽取容量为45的样本，那么高一、高二、高三 各年级抽取的人数分别为 A.15,5,25 B.15,15,15 C.10,5,30 D15,10,20 6、某单位有老年人28人，中年人54人，青年人81人，为了调查他们的身体情况，需从他们中抽取一个容量为36的样本，则适合的抽取方法是（）A．简单随机抽样 B．系统抽样 C．分层抽样 D．先从老人中剔除1人，然后再分层抽样 【例题精析】 〖例1〗：下表给出了某校500名12岁男孩中用随机抽样得出的120人的身高 (单位ｃｍ) (1) (2)一画出频率分布直方图; (3)估计身高小于134ｃｍ的人数占总人数的百分比.。 解：（１）样本频率分布表如下：
必修三知识点汇总 Module 1 Europe 重要短语： because of be covered by/with be known for/as/to make A out of B on the coast work on have…in common refer to have control over/of have a population of little by little on the other hand in one’s thirties compared with belong to increase to/by in terms of be faced with ever since 重要句型： 1. It is one of the most beautiful cities in the world. one of the +形容词最高级+ 可数名词复数最。。。。之一 2. Portugal is to the west of Spain. ①表示位置: A is/lies in/on/to/off the+方向+of B A is located/situated in/on/to/off the+方向+of B ②位置+距离: A is (about)+距离+（to the）+方向+of B in ,on和to表地理方位的区别 （1）表示A在B的范围内（即A是B的组成部分之一）时用in.如：our school is in the west of the town.我们学校在城西。 （2）强调A和B两地接壤时，用on.如： Korea is on the east of China.朝鲜与中国东部接壤。 （3） A在B的范围之外，两者之间没有所属关系时用to。如：Our school is to the west of the hospital.我们学校在医院的西面。 3. on the coast和off the coast on表示“位于河畔或铁路，公路及海岸等沿线上”；off表示“稍离陆地，在沿岸的海里”。如： 语法要求： 一：一般现在时和一般过去时的被动语态 被动语态由“be+及物动词的过去分词(+by) ”构成。被动语态发生时态变化时只变be的形式，过去分词不变。 现在时被动语态：am/ is/ are + 过去分词 过去时被动语态：was/ were + 过去分词 二：主谓一致：本单元主要强调第二个原则 语法一致原则。句子的主语是单数，谓语动词用单数形式；主语是复数，谓语动词用复数形式。 注意：(1) something, everybody, nobody , either, neither, each等不定代词作主语时，谓语需用单数。 (2) 当主语后面跟有with, together with, as well as, like 等时，谓语动词的单复数形式仍然要与这些词语前面的主语保持一致。 2. 意义一致原则。 一些集合名词，如：family, enemy, class, population, army等作主语时，谓语动词的
Module 1 My First Day at Senior High My name is Li live in Shijiazhuang, a city not far from Beijing.It is the capital city of Hebei Province.Today is my first day at Senior High school and I’m writing down my thoughts about it. My new school is very good and I can see why. The teachers are very enthusiastic and friendly and the classrooms are amazing.Every room has a computer with a special screen, almost as big as a cinema screen. The teachers write on the computer, and their words appear on the screen behind them. The screens also show photographs, text and information from websites.They’re brilliant! The English class is really interesting. The teacher is a very enthusiastic woman called Ms Shen.We’re using a new textbook and Ms Shen’s method of teaching is nothing like the teachers at my Junior High school. She thinks that reading comprehension is important, but we speak a lot in class, too. And we have fun.I don’t think I will be bored in Ms Shen’s class! Today we introduced ourselves to each other.We did this in groups.Some students were embarrassed at first but everyone was very friendly and it was really nice. Ms Shen gave us instructions and then we worked by ourselves.Ms Shen wants to help us improve our spelling and handwriting. We do this in a fun way, with spelling games and
人教版高中数学必修三第二章统计知识点总结 2.1随机抽样 2.1.1简单随机抽样 教学目标：1．结合实际问题情景，理解随机抽样的必要性和重要性 2．学会用简单随机抽样的方法从总体中抽取样本 教学重点：学会用简单随机抽样的方法从总体中抽取样本 1．总体和样本 在统计学中 , 把研究对象的全体叫做总体． 把每个研究对象叫做个体． 把总体中个体的总数叫做总体容量． 为了研究总体的有关性质，一般从总体
中随机抽取一部分：， ， ，
研究，我们称它为样本．其中个体的个数称为样本容量． 2．简单随机抽样 一般地，设总体中有Ｎ个个体，从中逐个不放回地抽取n个个体作为样本 (n≤N),如果每次抽取时总体中的各个个体被抽到的机会都相等就把这种抽样方法叫做简单随机抽样. 特点：每个样本单位被抽中的可能性相同（概率相等），样本的每个单位完全独立，彼此间无一定的关联性和排斥性。简单随机抽样是其它各种抽样形式的基础。通常只是在总体单位之间差异程度较小和数目较少时，才采用这种方法。 简单随机抽样常用的方法： （1）抽签法； 例：请调查你所在的学校的学生做喜欢的体育活动情况。 （2）随机数表法： 例：利用随机数表在所在的班级中抽取10位同学参加某项活动。 例题 例1 为了了解参加运动会的2000名运动员的年龄情况，从中抽取100名运动员；就这个问题，下列说法中正确的有； ①2000名运动员是总体；②每个运动员是个体；③所抽取的100名运动员是一个样本； ④样本容量为100；⑤这个抽样方法可采用按年龄进行分层抽样；⑥每个运动员被抽到的概率相等。 例2 下面抽取样本的方式是简单随机抽样吗？为什么？ （1）从无限多个个体中抽取50个个体作为样本； （2）箱子里共有100个零件，从中选取10个零件进行检验，从中任取一个零件进行检验
精品文档 . 高中数学必修3知识点总结第二章统计 2.1.1简单随机抽样 1．总体和样本：在统计学中, 把研究对象的全体叫做总体．把每个研究对象叫做个体．把总体中个体的总数叫做总体容量．为了研究总体的有关性质，一般从总体中随机抽取一部分：，，，研究，我们称它为样本．其中个体的个数称为样本容量．2．简单随机抽样，也叫纯随机抽样。就是从总体中不加任何分组、划类、排队等，完全随机地抽取调查单位。特点是：每个样本单位被抽中的可能性相同（概率相等），样本的每个单位完全独立，彼此间无一定的关联性和排斥性。简单随机抽样是其它各种抽样形式的基础。通常只是在总体单位之间差异程度较小和数目较少时，才采用这种方法。 3．简单随机抽样常用的方法： （1）抽签法；⑵随机数表法；⑶计算机模拟法；⑷使用统计软件直接抽取。 在简单随机抽样的样本容量设计中，主要考虑：①总体变异情况；②允许误差范围； ③概率保证程度。 4．抽签法:（1）给调查对象群体中的每一个对象编号；（2）准备抽签的工具，实施抽签（3）对样本中的每一个个体进行测量或调查例：请调查你所在的学校的学生做喜欢的体育活动情况。 5．随机数表法：例：利用随机数表在所在的班级中抽取10位同学参加某项活动。 2.1.2系统抽样 1．系统抽样（等距抽样或机械抽样）： 把总体的单位进行排序，再计算出抽样距离，然后按照这一固定的抽样距离抽取样本。第一个样本采用简单随机抽样的办法抽取。 K（抽样距离）=N（总体规模）/n（样本规模） 前提条件：总体中个体的排列对于研究的变量来说，应是随机的，即不存在某种与研究变量相关的规则分布。可以在调查允许的条件下，从不同的样本开始抽样，对比几次样本的特点。如果有明显差别，说明样本在总体中的分布承某种循环性规律，且这种循环和抽样距
必修1 Module 1 My First Day at Senior High My name is Li Kang. I live in Shijiazhuang, a city not fa r from Beijing. It is the capital city of Hebei Province. Today is my first day at Senior High school and I’m writi ng down my thoughts about it. My new school is very good and I can see why. Th e teachers are very enthusiastic and friendly and the classr ooms are amazing. Every room has a computer with a special screen, almost as big as a cinema screen. The teachers wr ite on the computer, and their words appear on the screen behind them. The screens also show photographs, text and inf ormation from websites. They’re brilliant! The English class is really interesting. The teacher is a very enthusiastic woman called Ms Shen. We’re using a new textbook and Ms Shen’s method of teaching is nothi ng like that of the teachers at my Junior High school. She thinks that reading comprehension is important, but we spea k a lot in class, too. And we have fun. I don’t think I will be bored in Ms Shen’s class! Today we introduced ourselves to each other. We did this in groups. Some students were embarrassed at first bu t everyone was very friendly and it was really nice. Ms Sh en gave us instructions and then we worked by ourselves. Ms Shen wants to help us improve our spelling and handwriting. We do this in a fun way, with spelling games and other activities. I like her attitude very much, and the behavior of the other students shows that they like her , too. There are sixty-five students in my class –more than my previous class in Junior High. Forty-nine of them a re girls. In other words, there are three times as many gi rls as boys. They say that girls are usually more hard-work ing than boys, but in this class, everyone is hard-working. For our homework tonight, we have to write a description of the street where we live. I’m looking forward to doing it! ^ A Letter from a Senior High Student Dear Li Kang, How’s it going I thought I’d write to tell you about the