Module 1 Unit 3 Looking good, feeling good
一、单项填空 (共15小题,每小题1分,满分15分)
1. What he said is ______ surprise to me, ______ I hadn’t expected.
A. a; which
B. /; which
C. /; that
D. a; that
2. My cousin had an accident last week. He is now in hospital, ______ very rapidly.
A. recovered
B. recovering
C. to recover
D. having recovered
3. The boy was left unpunished after he broke his neighbour’s window, ______?
A. did he
B. didn’t he
C. was he
D. wasn’t he
4. My uncle has a lot of books in his study, ______ are about computer science and technology.
A. most of them
B. most of that
C. most of which
D. and most of which
5. The little boy, _______ about his examination results, stood there without saying a word.
A. encouraged
B. embarrassed
C. frightened
D. relaxed
6. The school, ______ students are all under 12, holds a big party on Children’s Day.
A. which
B. its
C. whose
D. that
7. I’ll soon let you know when I’m getting married, bu t still have no ______ date.
A. extra
B. exact
C. real
D. true
8. In order to save the coal miners, the rescue team would have to risk ______ caught in the pit.
A. getting
B. to get
C. to be got
D. being got
9. Mr. Smith will move into his new house next Sunday, ______ it will be completely finished.
A. by the time
B. on that time
C. on which
D. by which time
10. A: What about the sofa we’ve found in the shop?
B: In my opinion, it’s a perfect ______ for the furniture in our sitting room.
A. fit
B. suit
C. match
D. comfort
11. He, along with his brother, ______ how serious the situation is.
A. haven’t realized
B. hasn’t realized
C. don’t realize
D. didn’t realize
12. A: How long do you suppose it is ______ he arrived here?
B: No more than half a week.
A. since
B. before
C. after
D. when
13. Mr. Adams phoned the teacher if his son had behaved ______ in school.
A. exactly
B. carefully
C. generally
D. properly
14. A:These things are not useful to anyone, are they?
B: ______. We can throw them away.
A. Yes, they are
B. Yes, they aren’t
C. No, they aren’t
D. No, they are
15. A: Show me your passport, please.
B: Oh, it’s not in my pocket. It must have ______.
A. fallen off
B. fallen out
C. fallen down
D. fallen over
二、完形填空 (共20小题,每小题1分,满分20分)
A blind boy sat on the steps of a building with a hat by his feet. He held up a 16 which said: “I am blind, please help.” There were only a few 17 in the hat.
A man was walking by. He took a few coins from his 18 and dropped them into the hat. He 19 took the sign, turned it around, and wrote some words. He 20 the sign 21 everyone who walked by would see the new words.Soon the hat began to 22 . A lot more people were giving money to the blind boy. That afternoon the man who had 23 the sign came to see 24 things were. The blind boy 25 his footsteps and asked, “Were you the one who changed my sign this morning? What did you write?”
The man said, “I only wrote the truth. I said what you said in a di fferent way, 26 .”What he had written was: “Today is a(an) 27 day and I cannot see it.”
Do you think the first sign and the second sign were saying the same thing?
Of course both signs told people the boy was blind. But the first sign 28 said the boy was blind. The second sign told people they were so 29 that they were not blind.
Should we be surprised that the second sign was more 30 ?
There are at least two lessons from the story. The first is to be 31 . There is always a better way!
The second is to be thankful for what you have. 32 life gives you 100 reasons to cry, show life that you have 1000 reasons to 33 . Face your past without regret. 34 your present with confidence. Prepare for the 35 without fear. Keep the faith (信念) and drop the fear.
16. A. cover B. sign C. board D. note
17. A. cashes B. treasures C. pennies D. coins
18. A. pocket B. can C. backpack D. case
19. A. still B. already C. then D. yet
20. A. put on B. put out C. put off D. put back
21. A. in case B. now that C. so that D. as though
22. A. mix up B. fill up C. show up D. make up
23. A. changed B. prepared C. supported D. reached
24. A. what B. why C. where D. how
25. A. realized B. recognized C. felt D. discovered
26. A. though B. but C. yet D. still
27. A. average B. successful C. harmonious D. beautiful
28. A. sincerely B. mainly C. simply D. immediately
29. A. happy B. lucky C. strong D. strange
30. A. effective B. brave C. surprising D. scientific
31. A. kind B. creative C. easygoing D. polite
32. A. Once B. Because C. While D. When
33. A. smile B. exist C. survive D. prove
34. A. Look into B. Search for C. Deal with D. Work on
35. A. tomorrow B. future C. risk D. sunrise
三、阅读理解 (共10小题;每小题2分,满分20分)
A
It is so true: you can have all the money in the world, and every possession (财产) you’ve ever wanted, but if you don’t have good health, then you have nothing.
Two years ago I made a huge change-of-life effort to improve my health and fitness. I lost over 70 pounds through hard workouts, a strict diet, and just pure determination (决心), and achieved the best health I’ve ever had. I’m feeling better now than ever before, and people are saying that I look much younger. My work also has improved, and mind is clear, organized, and focused in a way it never was before.
Since achieving that level of fitness, I’ve done a fairly good job of keeping it. I’ve discovered that losing the weight and getting fit is not the most difficult part, but insisting on exercising and dieting after you’ve achieved it is.
Like anyone who has gone down this path, I make plenty of excuses for giving up: I work longer hours, and haven’t been able to find a proper gym. But I realize that having good health is what counts. I need to readjust (重新调整), and refocus my efforts. If I’m to work hard to achieve my long-term financial (金融的) aims, then I need to have good health to enjoy my success.
36. Which of the following was NOT changed by the writer’s losing weight?
A. Health.
B. Appearance.
C. Ability to work.
D. Possessions.
37. What’s the writer’s attitude towards losing weight?
A. I t’s not difficult at all to go on a diet for a long time.
B. Losing weight and getting fit are the most difficult things to do.
C. Insisting on doing exercise is as difficult as losing weight.
D. Insisting on doing exercise and dieting after achieving fitness is the most difficult.
38. By saying “I need to readjust…” in the last paragraph, the writer means that he aims to ____
A. find a proper gym
B. go on exercising while working hard
C. work hard rather than exercising
D. enjoy the success he has had
B
Most young people enjoy some form of physical activity. It may be walking, cycling, or swimming, or in winter, skating or skiing. It may be a game of some form — football, basketball, hockey, golf or tennis. It may be mountaineering.
Those who have a passion for climbing high and difficult mountains are often looked upon with surprise. Why are men and women willing to suffer cold and hardship (艰难), and to take risks in high mountains? This astonishment is caused, probably, by the difference between mountaineering and other forms of activity to which men give their leisure (闲暇).
Mountaineering is a sport and not a game. There are no man-made rules as others, as there are for such games as golf and football. There are, of course, rules of different kind which it
would be dangerous to ignore (忽视), but it is this freedom from man-made rules that makes mountaineering attractive to many people. Those who climb mountains are free to use their own methods.
If we compare mountaineering and other more familiar sports, we might think that one big difference is that mountaineering is not a “team game”. We should be mistaken in thi s. There are, it is true, no “matches” between “teams” of climbers, but when climbers are on a rock face linked by a rope on which their lives may depend, there is obviously teamwork.
The mountain climber knows that he may have to fight forces that are stronger and more powerful than man. He has to fight the forces of nature. His sport requires high mental and physical qualities.
A mountain climber continues to improve in skill year after year. A skier is probably past his best by the age of thirty. But it is not unusual for men of fifty or sixty to climb the highest mountains in the Alps. They may take more time than younger men, but they perhaps climb with more skill and less waste of effort, and they certainly experience equal enjoyment.
39. What movements are popular among people in winter in the passage?
A. Soccer and golf.
B. Skiing and skating.
C. Cycling and hockey.
D. Mountaineering.
40. The word “passion” in Paragraph 2 could best be replaced by ______.
A. strong feeling
B. dislike
C. interest
D. pleasure
41. We know from the text that ______.
A. Mountaineering is a match between climbers
B. Mountaineering is similar to other sports in many ways
C. Climbers work like a team when their lives may depend on (依靠) a rope
D. Climbers help each other in time of difficulty
42. It can be inferred from the passage that ______.
A. people show interest in mountaineering because it is a team game
B. physical quality is more important than mental one for climbers
C. a mountain climber would pass his best by the age of thirty
D. it is possible for an old man of fifty or sixty to climb the Alps
C
After the terrible car accident, the whole world had been completely dark and quiet for Robert Edwards for almost ten years, for he became both blind and deaf after the doctor had saved him. The loss of sight and hearing threw him into such a sadness that he tried a few times to put end to his life. His family especially his wife did their best to look after and comfort him. By and by he finally regained the courage to live on.
On a hot summer afternoon he was taking a walk with a stick near his house when a thunderstorm started all at once. He stood under a large tree in order not to get himself wet. Unfortunately he was struck down (击倒) to the ground by a lightning. The witnesses thought him dead but he woke up about 20 minutes later lying face down in muddy water below the tree.
He felt that he was shaking badly, but when he opened his eyes, he didn’t dare to believe that he saw a plough (犁) lying near the wall. When Mrs Edwards came running up to him, she shouted to their neighbours for help. And he saw her and heard her voice for the first time in nearly ten years.
The news of Robert’s regaining his sight and hearing quickly spread in his area. And many doctors came to prove the truth of the news. Most of them said that he gained sight and hearing again obviously from the knock of lightning; none of them could give convincing (有说服力的) reasons, however. The only reasonable explanation given by one doctor was that, since Edwards lost his sight and hearing as a result of sudden shock in a terrible accident, perhaps the only way for them to regain was by another sudden shock.
43. What did Edwards see first after being struck down by a lightning?
A. His wife.
B. The large tree.
C. A plough.
D. The lightning itself.
44. Which of the following is NOT true?
A. Edwards had been deaf and blind for nearly ten years.
B. Edwards lost all his senses for about 20 minutes after the lightning had struck him down.
C. Doctor held the belief that Edwards was never really blind and deaf.
D. Edwards woke up with his face in mud.
45. How did Edwards get his sight and hearing once more according to the doctor?
A. He regained them from hurting his head when he fell from a tree.
B. His wife’s first visit after almost ten years made him so happy that he regained them.
C. The lightning took the feeling from his legs and gave the senses of sight and hearing to his head.
D. The blow that caused him blind and deaf was very serious, so it took another sudden blow to regain them.
D
Many people go to school for an education. They learn languages, history, geography, physics, chemistry and mathematics. Others go to school to learn a skill so that they can make a living. School education is very important and useful. Yet no one can learn everything they want to know. The teacher’s job is to show his students how to learn. He teaches them how to read and how to think. So, much more is to be learned outside school by the students themselves.
It is always more important to know how to study by oneself than to memorize some facts or a formula. It is usually quite easy to learn a certain fact in history or a formula in mathematics. But it is very difficult to use a formula in working out a maths problem. Great scientists, such as Einstein, Newton and Galileo didn’t get anything from school. But they were all so successful. They invented so many things for mankind.
The reason for their success is that they knew how to study. They read books that were not taught at school. They worked hard all their lives, wasting not a single moment. They would ask many questions as they read and they did thousands of experiments.
Above all, they knew how to use their brains.
46. Many people go to school for an education. But some others go to school for __________.
A. enjoying themselves
B. learning subjects
C. learning a skill
D. making a living
47. Whether he is more _______ or less, a teacher can’t teach his students everything they want to know.
A. important
B. useful
C. difficult
D. knowledgeable
48. A teacher’s job is mainly to train his students to master the ability of __________.
A. learning by themselves
B. making a living
C. reading and thinking
D. studying all the subjects
49. Using a formula in working out a maths problem is ______ memorizing it.
A. much easier than
B. more difficult than
C. as easy as
D. as difficult as
50. The scientists were successful because __________.
A. they read books that were not taught at school
B. they worded all their lives
C. they wasted not a single moment
D. they knew how to use their brains
四、词汇检测 (共15小题;每小题1分,满分15分)
46. He told me such a t__________ story that I had to struggle to hold back my tears.
47. Sometimes a person’s voice is difficult to be r__________ on the phone.
48. There was too much noise outside, and I could not c__________ my attention on my book
49. He was late for the meeting because all the trains were delayed due to a power f_________.
50. When you exercise, your body produces some c__________ that make you feel relaxed.
51. The new medicine is safe for you and has no side __________ (作用).
52. It seems that John is delighted with his __________ (成就).
52. It is not how much you read but what you read that __________ (有价值).
53. Much to our disappointment, our plan didn’t __________ (奏效) at all.
54. We have spent a large __________ (量) of money protecting the wild animals in West China. 根据情境,写出一个语法和语义上都正确的单词。
55. A: I’m terribly sorry for what I said to you.
B: OK. Anyway, sometimes you should learn how to __________ yourself.
56. A: People are paying more attention to low carbon life now.
B: Y es. Many countries are increasing their use of natural gas, wind and other forms of __________.
57. A: What do you think of the solution put forward at today’s meeting?
B: It is well worth __________. We will discuss it further.
58. A: What makes him so healthy?
B: I think it’s eating properly and exercising __________.
59. —Did you see Mrs. Thompson at the party last night? She looked great!
—Yes. It’s amazing how she keeps her f____________ over the years.
60. —Remember the day we s___________ school?
—Of course! We spent the afternoon in the Internet Café, only to be caught by the teacher!
2018-2019学年必修三第二章训练卷 统计(二) 注意事项: 1.答题前,先将自己的姓名、准考证号填写在试题卷和答题卡上,并将准考证号条形码粘贴在答题卡上的指定位置。 2.选择题的作答:每小题选出答案后,用2B 铅笔把答题卡上对应题目的答案标号涂黑,写在试题卷、草稿纸和答题卡上的非答题区域均无效。 3.非选择题的作答:用签字笔直接答在答题卡上对应的答题区域内。写在试题卷、草稿纸和答题卡上的非答题区域均无效。 4.考试结束后,请将本试题卷和答题卡一并上交。 一、选择题(本大题共12个小题,每小题5分,共60分,在每小题给出的四个选项中,只有一项是符合题目要求的) 1.已知x ,y 是两个变量,下列四个散点图中,x ,y 是负相关趋势的是( ) A. B. C. D. 2.一组数据中的每一个数据都乘以2,再减去80,得到一组新数据,若求得新的数据的平均数是1.2,方差是4.4,则原来数据的平均数和方差分别是( ) A.40.6,1.1 B.48.8,4.4 C.81.2,44.4 D.78.8,75.6 3.某篮球队甲、乙两名运动员练习罚球,每人练习10组,每组罚球40个.命中个数的茎叶图如右图,则下面结论中错误的一个是( ) A.甲的极差是29 B.乙的众数是21 C.甲罚球命中率比乙高 D .甲的中位数是24 4.某学院A ,B ,C 三个专业共有1200名学生,为了调查这些学生勤工俭学的情况,拟采用分层抽样的方法抽取一个容量为120的样本.已知该学院的A 专业有380名学生,B 专业有420名学生,则在该学院的C 专业应抽取的学生人数为( ) A.30 B.40 C.50 D.60 5.在一次歌手大奖赛上,七位评委为某歌手打出的分数如下:9.4、8.4、9.4、9.9、9.6、9.4、9.7,去掉一个最高分和一个最低分后,所剩数据的平均值和方差分别为( ) A.9.4,0.484 B.9.4,0.016 C.9.5,0.04 D.9.5,0.016 6.两个变量之间的相关关系是一种( ) A.确定性关系 B.线性关系 C.非确定性关系 D.非线性关系 7.如果在一次实验中,测得(x ,y )的四组数值分别是A (1,3),B (2,3.8),C (3,5.2),D (4,6),则y 与x 之间的回归直线方程是( ) A.y =x +1.9 B.y =1.04x +1.9 C.y =0.95x +1.04 D.y =1.05x -0.9 8.现要完成下列3项抽样调查: ①从10盒酸奶中抽取3盒进行食品卫生检查. ②科技报告厅有32排,每排有40个座位,有一次报告会恰好坐满了听众,报告会结束后,为了听取意见,需要请32名听众进行座谈. ③东方中学共有160名教职工,其中一般教师120名,行政人员16名,后勤人员24名.为了了解教职工对学校在校务公开方面的意见,拟抽取一个容量为20的样本. 较为合理的抽样方法是( ) A.①简单随机抽样,②系统抽样,③分层抽样 B.①简单随机抽样,②分层抽样,③系统抽样 C.①系统抽样,②简单随机抽样,③分层抽样 D.①分层抽样,②系统抽样,③简单随机抽样 9.从存放号码分别为1,2,…,10的卡片的盒子中,有放回地取100次,每次取一张卡片并记下号码,统计结果如下: 此卷只装 订 不 密 封 班级 姓名 准考证号 考场号 座位号
高二生物必修三第一单元试卷 一、单项选择题(每小题只有一个选项最符合题意,每小题2分,共50分) 1、与人体细胞直接进行物质交换的是 ( ) A .体液 B .细胞内液 C .消化液 D .细胞外液 2、下列有关内环境的说法中不正确的是( ) A .血浆渗透压的大小主要与无机盐和蛋白质的含量有关 B .内环境中含量最多的成分是蛋白质 C .正常人血浆的PH 稳定在7.35-7.45之间,与内环境中含有的HCO 3-、HPO 42-等离子有关 D .人体细胞外液的温度一般维持在在37O C 左右,即人体的正常体温 3、人体发生花粉等过敏反应时,引起毛细血管壁的通透性增加,血浆蛋白渗出,会造成局部( ) A .组织液增加 B .组织液减少 C .血浆量增加 D .淋巴减少 4、下图是人体局部内环境示意图,以下关于A 液、B 液和C 液三者之间联系表达正确的一项是( ) 5、食物中过多的酸性物质被肠道吸收进入血液后,血浆的PH 不会发生大的变化。其主要原因是( ) A .与血浆中的强碱中和 B .形成Na 2CO 3排出体外 C .H 2CO 3 / NaHCO 3等缓冲物质的调节作用 D .很快排出体内 6、碘是甲状腺激素的组成成分,当食物中缺碘时,分泌量增加的激素是( ) A .促甲状腺激素 B .甲状腺激素 C .胰岛素 D .生长激素 7、如果某人的下丘脑受到损伤,则可能导致 ( ) ① 体温调节能力下降 ②调节血糖的能力下降
③影响抗利尿激素的合成④影响渴觉的形成 A.①②③ B.①② C.③④ D.①②③④ 8、当人体的一些组织器官损伤或发生炎症时,会产生并释放组织胺。该物质使 毛细血管舒张和通透性增加,促进血浆渗入组织间隙而形成组织液,造成组织水 肿。该物质对血管的调节方式属于( ) A.血流自动调节 B.神经调节 C.体液调节 D.神经体液调节 9、当人处于炎热环境时,会引起 ( ) A.冷觉感受器兴奋 B.温觉感受器抑制 C.甲状腺激素分泌量增加 D.下丘脑体温调节中枢兴奋 10、某人因为交通事故脊髓从胸部折断了,一般情况下( ) A、膝跳反射存在,针刺足部无感觉 B、膝跳反射不存在,针刺足部有感觉 C、膝跳反射不存在,针刺足部无感觉 D、膝跳反射存在,针刺足部有感觉 11、神经调节的特点是 ( ) A.比较缓慢 B.比较广泛 C.时间比较长 D.迅速准确 12、当人所处的环境温度从25 ℃降至5 ℃,耗氧量、尿量、抗利尿激素及体内 酶活性的变化依次为( ) A.增加、增加、减少、降低B.增加、减少、增加、不变 C.增加、增加、减少、不变D.减少、减少、增加、不变 13、某种病毒已侵入人体细胞内,机体免疫系统对该靶细胞发挥的免疫作用是 ( ) A.体液免疫 B.自身免疫 C.细胞免疫 D.非特异性免疫 14、下图为人体内体温与水平衡调节的示意图,下列叙述正确的是( ) ①当受到寒冷刺激时,a、b、c、d激素的分泌均会增加 ②c、d激素分泌增多,可促进骨骼肌与内脏代谢活动增强,产热量增加 ③下丘脑体温调节的中枢,也是形成冷觉、热觉的部位
高中英语必修一单元测试卷 I. 单词拼写(共5题,计5分) 1.Keeping a healthy ________ (饮食) is quite important. 2.After ___________(毕业) from university, Ning Jin plans to go to the countryside to work as a teacher. 3.You shouldn’t use formal words in _p_______ letters to friends. 4._________ (广告) usually attempt to attract people’s attention. 5.I often play games with my family to _r________ my stress. II. 完形填空(共20小题,计30分) Telling the truth is a very good habit. If you 36 speak the truth, you can save yourself from a lot of 37 ! Here is a story of a man who did a lot of 38 things, but his promise to tell the truth _ 39_ him. Once a man came to a prophet(预言家)and said, “Oh, prophet, I have many bad 40 . Which one of them should I 41 first?”The prophet said,“Give up tellin g 42 first and always speak the truth. ”The man promised to do so and went home. At night the man was about to go out to steal. Before setting out , he thought for a moment about the 43 he made with the prophet. “44 tomorrow the prophet asks me where I have been, what shall I say?Shall I say that I went out 45?No, I cannot say that. But nor can I lie. If I tell the truth, 46 will start hating me and call me a thief. I would be 47 for stealing.” So the man 48 not to steal that night, and gave up this bad habit. Next day, he 49 drinking wine. When he was about to do so, he said to himself, “What shall I say to the prophet if he asks me what I did during the day?I cannot tell a lie, and if I speak the truth people will 50 me, because a Muslim is not 51 to drink wine.” And so he gave up the 52 of drinking wine. In this way, 53 the man thought of doing something bad, he 54 his promise to tell the truth. One by one, he gave up all his bad habits and became a very 55 person. 36. A. always B. hardly C. sometimes D. never 37. A. time B. money C. trouble D. energy 38. A . great B. bad C. strange D. stupid 39. A. educated B. bothered C. tested D. saved 40. A. habits B. friends C. purposes D. collections 41. A. take in B. bring back C. give up D. depend on 42. A. stories B. truths C. reasons D. lies 43. A. plan B. secret C. promise D. mistake 44. A. Because B. Unless C. Since D. If 45. A. stealing B. drinking C. walking D. dancing 46. A. none B. someone C. anyone D. everyone 47. A. controlled B. admired C. punished D. killed 48. A. refused B. tried C. decided D. agreed 49. A. talked about B. felt like C. adapted to(适应) D. broke down 50. A. understand B. like C. hate D. respect
必修三unit 3 单元练习 Dear Laura, I just heard you tell an old story of gift giving and un- selfish love in your program. You doubted that such unselfish love would happen in today’s world. Well, I’m here to give you 1 . I wanted to do something very 2 for my fifteen – year - old son, who has always been the perfect child. He 3 all summer to earn enough money to buy a used motorcycle. Then, he spent hours and hours on it 4 it looked almost new. I was so 5 of him that I bought him the shiniest helmet and a riding outfit. I could 6 wait for him to open up his gift. In fact, I barely slept the night before. Upon a wakening, I went to the kitchen to 7 the coffee, tea, and morning goodies. In the living room was a beautiful keyboard with a 8 : “To my wonderful mother, all my love, your son.” I was so 9 . It had been a long - standing joke in our family that I wanted a piano so that I could 10 lessons. “Learn to play the piano,and I’ll get you one” was my hus- band’s 11. I stood there shocked, crying a river, asking myself how my son could 12 this expensive gift. Of course, the 13 awoke, and my son was thrilled(激动的)with my reaction. Many kisses were 14 ,and I immediately wanted him to 15 my gift. As he saw the helmet and outfit, the look on his face was not 16 what I was expecting. Then I 17 that he has sold the motorcycle to get me the keyboard. Of course I was the proudest mother 18 on that day, and my feet never hit the ground for a month. So I wanted you to know, that kind of love still 19 and lives even in the ever-changing world of me, me, me ! I thought you’d love to 20 this story. Yours, Hilary P.S. The next day, my husband and I bought him a new “used” already shiny motorcycle. 1. A. hope B. advice C. support D. courage 2. A. polite B. similar C. special D. private 3. A. played B. studied C. traveled D. worked 4. A. after B. before C. unless D. until 5. A. sure B. fond C. proud D. confident 6. A. perhaps B. really C. almost D. hardly 7. A. start B. cook C. set D. serve 8. A. note B. notice C. word D. sign 9. A. disturbed B. confused C. astonished D. inspired 10. A. give B. take C. draw D. teach 11. A. reason B. request C. comment D. response 12. A. present B. afford C. find D. order 13. A. neighbor B. building C. home D. house 14. A. exchanged B. experienced C. expected D. exhibited
必修3第6章统计参考答案 6.1.1简单随机抽样 1.C2.C3.A4.抽签法,随机数表法,向上、向下、向左、向右 5. 21 6.60,30 7.相等,N n 8.略 9.(1)不是简单随机抽样,由于被抽取样本的总体的个数是无限的而不是有限的。 (2)不是简单随机抽样,由于它是放回抽样 10.选法二不是抽签法,因为抽签法要求所有的签编号互不相同,而选法二中39个白球无法相互区分。这两种选法相同之处在于每名学生被选中的概率都相等,等于40 1。 6.1.2系统抽样 1.A2.B3.B4.B5.A 、B 、D 6.2004 50 7.(一)简单随机抽样 (1) 将每一个人编一个号由0001至1003; (2) 制作大小相同的号签并写上号码; (3) 放入一个大容器,均匀搅拌; (4) 依次抽取10个号签
具有这十个编号的人组成一个样本。 (二)系统抽样 (1)将每一个人编一个号由0001至1003; (2)选用随机数表法找3个号,将这3个人排除; (3)重新编号0001至1000; (4)在编号为0001至0100中用简单随机抽样法抽得一个号L; (5)按编号将:L,100+L,…,900+L共10个号选出。 这10个号所对应的人组成样本。 8.系统抽样适用于总体中的个体数较多的情况;系统抽样与简单随机抽样之间存在着密切联系,即在将总体中的个体均分后的每一段进行抽样时,采用的是简单随机抽样;与简单随机抽样相同的是,系统抽样也属于等可能抽样。 9.是用系统抽样的方法确定的三等奖号码的,共有100个。 10.略(参考第7小题) 6.1.3分层抽样 Nm 1.B2.B3.1044. n 5.70,80 6.系统抽样,100个 7.总体中的个体个数较多,差异不明显; 总体由差异明显的几部分组成 中年:200人;青年:120人;老年:80人 8.分层抽样,简单随机抽样 9.因为总体共有彩电3000台,数量较大,所以不宜采用简单随机抽样,又由于三种彩电的进货数量差异较大,故也不宜用系统方法,而以分层抽样为妥。康佳:38台;海信:16台;熊猫:6台。其中抽取康佳,海信,熊猫彩电的时候可用系统抽样的方法 如果商场进的货是“康佳”“长虹”和“TCL”彩电,因为三者所占的市场分额差异不大,因此可以采用系统抽样法,具体方法略。 6.2.1频率分布表 1.C2.C3.A4.55.1206.0.47.0.148.略 9.频率分布表为:
第一章算法初步(B) (时间:120分钟满分:150分) 一、选择题(本大题共12小题,每小题5分,共60分) 1.将两个数a=8,b=17交换,使a=17,b=8,下面语句正确一组是() 2.运行如下的程序,输出结果为() A.32 B.33 C.61 D.63 3.表达算法的基本逻辑结构不包括() A.顺序结构B.条件结构 C.循环结构D.计算结构 4.设计一个计算1×2×3×…×10的值的算法时,下面说法正确的是() A.只需一个累乘变量和一个计数变量 B.累乘变量初始值设为0 C.计数变量的值不能为1 D.画程序框图只需循环结构即可 5.阅读下边的程序框图,运行相应的程序,则输出s的值为()
A.-1 B.0 C.1 D.3 6.计算机执行下面的程序段后,输出的结果是() A.1,3 B.4,1 C. 7.给出30个数:1,2,4,7,11,…,其规律是第一个数是1,第二个数比第一个数大1, 第三个数比第二个数大2,第四个数比第三个数大3,……依此类推,要计算这30个数 的和,现已知给出了该问题的程序框图如图所示.那么框图中判断框①处和执行框②处 应分别填入() A.i≤30?;p=p+i-1 B.i≤29?;p=p+i-1 C.i≤31?;p=p+i D.i≤30?;p=p+i 8.当x=5,y=-20时,下面程序运行后输出的结果为()
A.22,-22 B.22,22 C.12,-12 D.-12,12 9.阅读如图所示的程序框图,运行相应的程序,输出的结果是() A.2 B.4 C.8 D.16 10.读程序 当输出的y的范围大于1() A.(-∞,-1)
必修一 UNIT1 _____________ n. 调查;测验_____________ 合计 _____________adj.心烦意乱的;不安的;不适的_____________vt.使不安;使心烦。 _____________不理睬,忽视_____________(使)平静下来;(使)镇静下来 _____________vt.vi(使)平静;(使)镇定adj.平静的;镇静的;沉着的 _____________不得不;必须_____________(使)担忧;涉及;关系 _____________关心;挂念_____________松的;松开的 ______________经历;经受_____________记下;放下;登记 _____________一连串的;一系列;一套_____________在户外;在野外 _____________ vt迷住;迷惑_____________故意 _____________为了…_____________在黄昏时刻 _____________整个的;完全的;全部的_____________完全地;全然地;整个地 _____________ n.能力;力量;权力_____________面对面地 _____________积满灰尘的_____________ 不再 ____________ n.伙伴;合作者;合伙人_____________安家;定居;停留;安排;解决 _____________遭受;忍受;经历_____________遭受;患病 _____________孤单;寂寞_____________痊愈;恢复;重新获得 _____________对…厌烦_____________将(东西)装箱打包 _____________ n.手提箱;衣箱_____________ n.十几岁的青少年 _____________与…相处;发展_____________ n.闲话;闲谈 _____________相爱爱上_____________确实如此;正式;确切地 _____________ vi不同意_____________感激的;表示谢意的 _____________不喜欢;厌恶_____________参加;加入 _____________n.揭示;技巧;尖;尖端;消费vt. 倾斜;翻到 _____________交换_____________ n.项目;条款 UNIT2 _____________官方的;正式的;公务的_____________征服;占领 _____________因为;由于_____________adj.本国的;本地的;n本地人;本国人 _____________走近;上来;提出_____________实际上;事实上 _____________以…为根据;n 基部;基地;基础_____________现在;目前 _____________逐渐的;逐步的_____________逐渐地;逐步地 _____________使富裕;充实;改善_____________词汇;词汇量;词表 _____________利用;使用_____________拼写;拼法 _____________较后的;后半的;(两者中)后者的_____________本身;本体;身份 _____________流利的;流畅的_____________流利地;流畅地 _____________例如……;想这种_____________频繁的;常见的 _____________常常;频繁地_____________使用;用法;词语惯用法 _____________命令;指令;掌握_____________请求;要求 _____________词语;表达;表示_____________扮演一个角色;参与 _____________辨认出;承认;公认_____________直接;挺直;笔直的,正直的 _____________街区;块;木块;石块 unit3 _____________日记;杂志.定期刊物_____________运送.运输 _____________更喜欢;选择某事物(而不选择其他事物) ____________不利条件;不便之处 _____________费用_____________路线.路途 _____________流动.流出n 流动.流量____________从那以后 _____________说服.劝说_____________毕业n 大学毕业生 _____________最后.终于_____________时间表;进度表;制度表;v为某事安排时间_____________心喜爱的.慈爱的;宠爱的_____________喜爱;喜欢 _____________缺点_____________顽固的;固执的 _____________组织,成立_____________关心;忧虑; _____________细节;详情_____________来源;水源
Unit 3 单元测试题 第二部分:阅读理解(共两节,满分40分) 第一节(共15小题;每小题2分,满分30分) 阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。 A Ten-year-old Cody Jackson, a 2013 Build-A-Bear Workshop Huggable Hero, helps support the soldiers. November 11 is a day to honor people who have served in the army. That is what Cody Jackson, 10, from Alpharetta, Georgia, does all the year round. Cody visits airports to greet soldiers and has sent nearly 5,000 pounds of care packages to the soldiers. He has also written books to teach kids to love their country, and sells the books on his website, https://www.wendangku.net/doc/3d4775893.html,, to pay for his package supplies. For all his work, Cody was selected as a 2013 Build-A-Bear Workshop Huggable Hero. The 10 Huggable Heroes chosen each received $10,000. “When I was four years old, I was at the airport and it was taking so long to get through the airport. I asked my mom and dad why it was taking us so long and they told me about 9/11 and what the soldiers did that day. They explained the soldiers were providing extra (额外的) protection to help keep us safe. That is when I started to thank the soldiers,” Cody said. “Sending them care packages makes me feel good. I hope the packages make the soldiers feel at home. I hope they show the soldiers that they are not forgotten.” When asked how it felt to be chosen as a hero, Cody smiled, “It was really exciting and it felt really good that I won that money so I could send more packages to the soldiers and get more things.” Cody also hopes more kids can send care packages to the soldiers and thank them for risking their lives. “If they want to help me or if they need some information, they can go to my website,” he added.
必修三统计试题 一、选择题(每小题5分,共60分) 1.①某学校高二年级共有526人,为了调查学生每天用于休息的时间,决定抽取10%的学生进行调查;②一次数学月考中,某班有10人在100分以上,32人在90~100分,12人低于90分,现从中抽取9人了解有关情况;③运动会工作人员为参加4×100 m 接力赛的6支队伍安排跑道.就这三件事,恰当的抽样方法分别为( ) A .分层抽样、分层抽样、简单随机抽样 B .系统抽样、系统抽样、简单随机抽样 C .分层抽样、简单随机抽样、简单随机抽样 D .系统抽样、分层抽样、简单随机抽样 2. 某单位有840名职工,现采用系统抽样方法抽取42人做问卷调查,将840人按1,2,…,840随机编号,则抽取的42人中,编号落入区间[]481,720的人数为 ( ) A .11 B .12 C .13 D .14 3从2007名学生中选取50名参加全国数学联赛,若采用下面的方法选取:先用简单随机抽样从2007人中剔除7人,剩下的2000人再按系统抽样的方法抽取,则每人入选的可能性( ) A .不全相等 B .均不相等 C .都相等,且为140 D .都相等,且为50 2007 4. 某大学数学系共有学生5 000人,其中一、二、三、四年级的人数比为4∶3∶2∶1,要 用分层抽样的方法从数学系所有学生中抽取一个容量为200的样本,则应抽取三年级的学生人数为( ) A.80 B.40 C.60 D.20 5.下列数字特征一定是数据组中数据的是( ) A .众数 B .中位数 C .标准差 D .平均数 6.某公司10位员工的月工资(单位:元)为1234,,,x x x x ,其均值和方差分别为x 和2 s ,若从下月起每位员工的月工资增加100元,则这10位员工下月工资的均值和方差分别为 ( ) A.2,s 100x + B. 22+100,s 100 x + C.2 ,s x D.2 +100,s x 7.一组数据中的每一个数据都乘以2,再减去80,得到一组新数据,若求得新的数据的平均数是1.2,方差是4.4,则原来数据的平均数和方差分别是( ) A .40.6,1.1 B .48.8,4.4 C .81.2,44.4 D .78.8,75.6 8.如图所示的茎叶图记录了甲、乙两组各5名工人某日的产量数据(单位:件).若这两组数据的中位数相等,且平均值也相等,则x 和y 的值分别为( ). A.3和5 B.5和5 C.3和7 D.5和7 9.如果在一次实验中,测得(x ,y )的四组数值分别是A (1,3),B (2,3.8),C (3,5.2),
2018-2019学年必修三第一章训练卷 算法初步(一) 注意事项: 1.答题前,先将自己的姓名、准考证号填写在试题卷和答题卡上,并将准考证号条形码粘贴在答题卡上的指定位置。 2.选择题的作答:每小题选出答案后,用2B 铅笔把答题卡上对应题目的答案标号涂黑,写在试题卷、草稿纸和答题卡上的非答题区域均无效。 3.非选择题的作答:用签字笔直接答在答题卡上对应的答题区域内。写在试题卷、草稿纸和答题卡上的非答题区域均无效。 4.考试结束后,请将本试题卷和答题卡一并上交。 一、选择题(本大题共12个小题,每小题5分,共60分,在每小题给出的四个选项中,只有一项是符合题目要求的) 1.小明中午放学回家自己煮面条吃,有下面几道工序:①洗锅盛水2分钟;②洗菜6分钟;③准备面条及佐料2分钟;④用锅把水烧开10分钟;⑤煮面条和菜共3分钟.以上各道工序,除了④之外,一次只能进行一道工序.小明要将面条煮好,最少要用( ) A .13分钟 B .14分钟 C .15分钟 D .23分钟 2.如图给出了一个程序框图,其作用是输入x 值,输出相应的y 值,若要使输入的x 值与输出的y 值相等,则这样的x 值有( ) A .1个 B .2个 C .3个 D .4个 3.已知变量a ,b 已被赋值,要交换a 、b 的值,采用的算法是( ) A .a =b ,b =a B .a =c ,b =a ,c =b C .a =c ,b =a ,c =a D .c =a ,a =b ,b =c 4.阅读下图所示的程序框图,运行相应的程序,输出的结果是( ) A .1 B .2 C .3 D .4 5.给出程序如下图所示,若该程序执行的结果是3,则输入的x 值是( ) INPUT IF THEN =ELSE =END IF PRINT END x x y x y x y >0- A .3 B .-3 C .3或-3 D .0 6.下列给出的输入语句、输出语句和赋值语句: (1)输出语句INPUT a ,b ,c (2)输入语句INPUT x =3 (3)赋值语句3=A (4)赋值语句A =B =C 则其中正确的个数是( ) A .0个 B .1个 C .2个 D .3个 7.执行如图所示的程序框图,若输入的a 为2,则输出的a 值是( ) 此卷 只 装订 不密封 班级 姓名 准考证号 考场号 座位号
高中英语必修一单词测试卷一、单词汉译英 1. 调查;测验 2.不理睬;忽视 3.(使)担心;涉及;关系到 4.黄昏傍晚 5.打雷雷鸣 6.整个的;完全的 7.窗帘;门帘;幕布 8.伙伴.合作者.合伙人 9.捆扎;包装打行李 10.确实如此;正是;确切地 11.项目;条款 12.电梯;升降机 13.航行;航海 14.公寓住宅;单元住宅 15.逐渐的;逐步的 16.词汇;词汇量;词表 17.较后的;(两者中)后者的 18.频繁的;常见的 19.请求;要求 20.词语;表达 21..西北方的;来自西北方的 22.口音;腔调;重音 23.流动;流出n.流动;流量 24.顽固的;固执的 25.坚决的;有决心的26.海拔高度;高处 27.冰河;冰川 28.保险 29.可信赖的;可靠的 30.在…下面 31.民族;国家国民 32.苦难;痛苦 33.极度的 34.幸存者;生还者;残存物 35.(使)震惊;震动n.休克;打击 36.电,电流;电学 37.掩蔽;掩蔽处避身处 38.真诚地;真挚地 39..骑自行车的人 40.慷慨的大方的 41.忠实的;深爱的 42.法则;原则;原理 43.律师 44.同盟;联盟;联合会 45.暴力;暴行 46.乐意的;自愿的 47.恐怖;可怕的人 48.报酬;奖金vt.酬劳;奖赏 49.辨认出;承认;公认 50.意见;看法;主张 二、单词英译汉 1.upset 2.spellbind 3.power 4.settle 5.loneliness 6.recover 7.gossip 8.grateful 9.petrol 10.official 11.conquer 12.native 13.enrich 14.fluently 15.dialect 16.straight 17.block 18.journal
本章测评(时间:90分钟满分:100分) 一、选择题(本大题共10小题,每小题5分,共50分.在每小题给出的四个选项中,只有一项是符合题目要求的) 1下列说法中不正确 ...的是( ). A.系统抽样是先将差异明显的总体分成几个小组,再进行抽取 B.分层抽样是将差异明显的几部分组成的总体分成几层,然后进行抽取 C.简单随机抽样是从个体无差异且个数较少的总体中逐个抽取个体 D.系统抽样是从个体无差异且个数较多的总体中,将总体均分,再按事先确定的规则在 各部分抽取 解析:当总体中个体差异明显时,用分层抽样;当总体中个体无差异且个数较多时,用系 统抽样;当总体中个体无差异且个数较少时,用简单随机抽样.所以A项中的叙述不正确. 答案:A
2某班的60名同学已编号1,2,3, (60) 为了解该班同学的作业情况,老师收取了号码能被5整除的12名同学的作业本,这里运用的抽样方法是( ). A.简单随机抽样 B.系统抽样 C.分层抽样 D.抽签法 解析:抽出的号码是5,10,15,…,60,符合系统抽样的特点:“等距抽样”. 答案:B 3统计某校1 000名学生的数学测试成绩,得到样本频率分布直方图如图所示,若满分为100分,规定不低于60分为及格,则及格率是( ).
A.20% B.25% C.6% D.80% 解析:从左至右,后四个小矩形的面积和等于及格率,则及格率是 1-10(0.005+0.015)=0.8=80%. 答案:D 4两个相关变量满足如下关系: 两变量的回归直线方程为( ). A.=0.58x+997.1 B.=0.63x-231.2
C.=50.2x+501.4 D.=60.4x+400.7 解析:利用公式==0.58, =- =997.1. 则回归直线方程为=0.58x+997.1. 答案:A 5某市A,B,C三个区共有高中学生20 000人,其中A区高中学生7 000人,现采用分层抽样的方法从这三个区所有高中学生中抽取一个容量为600的样本进行“学习兴趣”调查,则在A区应抽取( ). A.200人 B.205人 C.210人 D.215人 解析:抽样比是=,则在A区应抽×7 000=210(人). 答案:C
新人教版高中英语必修一复习测试题及答案
高一英语必修1综合复习检测题 (总分150分) 第二部分英语知识运用(共两节,满分45分) ▲第一节语法和词汇知识(共15小题;每小题1分,满分15分) 从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。 21. —I just heard from Miss Li that I passed the exam. —Oh, ________! A. cheer up B. congratulations C. have fun D. exactly 22. A great number of visitors __________ attracted to my hometown, and the number of foreigners there _______ quite large. A. are; are B. are; is C. is; are D. is; is 23. He devoted himself __________ to his research and got many achievements. A. entirely B. extremely C.
carefully D. certainly 24. In order ______ a good engine driver, you have to learn from the experienced ones. A. becoming B. became C. to becoming D. to become 25. I do hope that you can give me some good _______ on how to improve my spoken English. A. bases B. tips C. fares D. opinions 26. Kathy told me that all the doors and windows _______ when she arrived this morning. A. have cleaned B. have been cleaned C. had cleaned D. had been cleaned 27. Professor Li preferred _______ lectures to his students to _______ to meetings on scientific developments. A. to give; invite B. to give; be invited