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七年级上册期末词类专项复习一．根据句意及所给首字母提示完成单词(1)1. This is M_______Li. She is my teacher.2. Nice to m____you.3. Mrs Zhang is our t______. She teaches us English.4. Tom is my good f________in my class.5. Good morning.class.S______down,please.6. Tom, please d______a picture on the blackboard.7. This is our c_________.We study in it.8. Wash your h______before meals.9. L_____to Miss Wang in class.10.-T________ very much.-You are welcome.(2)11.Can you say it in E__________?12. These f________are red in the garden. They are very nice.13. There are s_______days in a week.14. Please draw them on the b________.15. We can w_______words with a pen.16. What are your parents’ j______?17. His father is a h______manager?18. My brother’s job is at a bus s_______.19. There are four seasons in a year.They are spring,summer,a_____and w_______.20. What’s the w_______like in Beijing?(3)21.We go home a_______school.22. He’s from C________.He is Chinese.23. This year I’m twelve years old and n______year I will be thirteen.24. Tony and Tom are from A_________.They speak English.25. Tom and Bill are E__________. They are from the UK.26. W_________to Beijing. It’s a big city.27. In the name of “John Brown”, John is the g_______name.28. Six and seven is t_________.29. People in different countries have different h______.30.-Do you know the c_______of China?-Beijing(4)31.Beijing and Shanghai are big c_______in China.32. It’s very nice to m_____you.33. March 8 is W________Day.34. My uncle’s son is my c______.35. My mother’s sister is my _______.36. This is a p_____of my family.37. Tom’s Mother works at a hospital,and she is a n_______.38. P________ come from China and they eat bamboo.39. Her mother is a t______ she teaches in a school.40. On his twelfth birthday, he gets many P______.(5)41. A g______ has a long neck.42. In the fridge, we have got many v_____. Such as potatoes and tomatoes.43. Today we can use the I______ to do my homework44. The k______ lives in grassland. It eats grass and leaves45. It's half p_____ six in the evening. It's time to have dinner.二．用单词的适当形式填空(1)1.-What are you_______(this)? -They are bags.2. There are two________(boy) in our class.3. Mike and Lucy________(be) friends.4._______(this) is Miss li. ________(that) are her books.5.-How old are you? -I ______(be) 13.6.-What’s that? –It’s ______(a) apple.7. There are some _______(bag) on the desk.8. There is _______(a) “L” in the word “letter”.9. There_____(be)a pen, two books and three pencils on the desk.10. How many ______(book) are there on the desk?(2)11.-What color are the chairs? - _______(it) are yellow.12. How ______you ______(spell)it?13. What color_______(be) the bananas?14. Don’t _______(open)your books.15. Let’s _______(play) basketball.16. Does she like ________(swim)?17. It’s time _______(have) lunch.18.I like _______(play) football.19.Can you help_______(they),please？20._______(write)it on the blackboard.(3)21. There _______(be) four seasons in a year.22.Liu yang is the ________(one ) Chinese woman in space.23.LiTao is in ______(class) 1_______(grade)7.24. Tony is 13_________(year) old.25.-What about _______(go)swimming? –Ok,good idea.26.______(I) name is Li Peng._______(I) am a boy.27.He is from America._____(he) name is Jack.28.They are _________(America).29.What ______(be) your name?30.They ________(be not ) good friends.(4)31.The man _______(work) in a factory and he is a _____(work)32.Tom is ______________(Jim and Jack) brother.33.Lucy’s_________(parent) are very kind.34.It’s nice _______(see) you35. ______(I) English teacher is Mr Black.36. In _____ (China), the family name is first and the given name is last.37. He can ______(play) the piano very well.38. Look! There is a man over there. He is _____(Liming) father.39. would you like ______(eat) some bread?40. –What time ____ Darning ____(go) to school?-- At 7:30.(5)41. He ____(like) music because he thinks it's relaxing.42. The little boy _____(not do) his housework every day.43. He reads books every day and he is good at_____ (write).44. The Greens _____(like) going to the cinema. They often go to the movies on weekends. 45He often _____(play) basketball after class.46. There are much _____(fruit) on the table.47. Mr Wang teaches ______(we) math.48.My mother _________（have）lunch at school．49.He _________（not like）English．(6)50 .Is e________ in the classroom now?51.There _________ (be) a desk and two chairs in the classroom.52. It’s happy _______ (meet) my old friends here.53.My jeans are purple , and hers _________ (be) pink .54.You mustn’t _________ (smoke) in the theatre .55..Mike and Bill _________（not speak）English to us．They speak Chinese．56.Can she _________（play）football?57.Let's _________（go）to school now．58.My grandma and grandpa live in England．_________（they）house is very big．59.Darning does _________（he）homework．60.This is _________（Mike）plan．(7)61.I have got an _________（invite）to the party．62．There are two football _________（match）this week．63. In our school, we have many ___________ (club).64. Helen can _______________ (speak) three languages.65. The Whites have four ___________ (child), two daughters and two sons.66. My pen pal _____________ (live) in Japan.67. I want to eat _____________ (a) apple.68. Please come and __________ (help) me.69. She _________ (have) a dictionary.70. There isn’t _____________ (some) tea in the cup.三. 选择合适单词的适当形式填入空内（1）Betty, Tony, Daming and Lingling are in Class 4 7. Betty is f and Tony is from . Daming and Lingling are .（2）Hello! My name is Amy. These are friends. names are Jack, Lily and Mike. Jack is American. Father is a doctor. He is family doctor. Lily isn’t American. family is Chinese. Mike isn’t Chinese. is English. Mike’s mother is a teacher. is our English teacher. are her students.（3）A health breakfast is in the morning and it’s my favorite . There arefruit and vegetables for lunch at school, but there isn’t any cola or candy. Candy and colaare food and drink and they’re bad for your . At home, my grandma’s dinner are and we aren’t . ! Eat well, and healthy.（4）On Friday I have a busy day. I at half past six in the morning. Then I wash my hands and face, and at seven. At half past seven, I , and at eight. There are four lessons in the morning. At twenty to ten, we for twenty minutes. We go to the playground and I talk with my friends. We in the school dining hall. In the afternoon, we have two lessons and go home at half past three. I don’t on Friday evening. I do it on Saturday.（5）I’m Daming. This is my family photo. This is me, my grandma and my grandpa.me are my mum and dad. My uncle is of my father. He is my f ather’s brother. My father’s sister is of my mum. See the dog me? His name is Dodo. We all love him.（6）Daming’s teacher a lot of on clothes. She buys scarves, dresses and shoes. Tony’s sister likes music and she often goes to . Lingling’s aunt and uncle like watching football on television at , but never go to football . Which birthday presents do you for them?（7）What’s at Lingling’s home? They’re getting for Spring Festival. Her mother and her aunt are working very , cleaning and . Linglimg is also busy. She’s marking red . Daming and Betty are learning a dance so Tonyto Lingling’s home and them.答案一．1—10 Miss meet teacher friend sit draw classroom hands listen Thanks11—20 English flowers seven blackboard write jobs Hotel station autumn winter;weather21—30 after China next American England welcome given thirteen habits capital31—40 cities meet women’s cousin;aunt photo nurse pandas teacher presents41—45 giraffe vegetable internet kangaroo past二．1.these2. boys3. are4. This, Those5. am6. an7.bags 8. an 9. is 10. books 11. They 12. do, spell13.are 14. open 15. play 16. swimming 17. to have18.playing 19. them 20. write 21. are 22. first23.Class, Grade 24. years 25. going 26. my,I 27. His28.American s 29. is 30. aren’t 31. works, worker32.Jim and Jack’s 33. parents 34. to see 35. my 36. China 37.play 38. Liming’s 39. to eat 40. does, go 41. likes42.doesn’t 43. writing 44. like 45. plays 46. fruit 47. us 48.has 49. doesn’t 50. everyone 51. is 52. to meet 53. is 54.smoke 55. don’t speak 56. play 57. go 58. Their 59. his 60.Mike’s 61. invitation 62. matches 63. clubs 64. speak 65.children 66. lives 67. an 68. help 69. has 70. any三．1.students Grade English American Chinese2.my their his our her he she we3.important meal lots of sweet teeth delicious fatremember4.get up have breakfast go to school start work have a breakhave lunch do homework5.between behind on the left on the right in front of6.spends money silk expensive concert weekend matchchoose。
《数据结构》期末复习题及参考答案- 第7章图//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 注意：做复习题时，请结合阅读教材，钻研教材，参考课件////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////一、选择题1、以下数据结构中，哪种具有非线性结构？A．栈B．队列C．双向链表D．十字链表2、下面关于图的存储的叙述中正确的是（）。
A.用邻接表法存储图，占用的存储空间大小只与图中边数有关，而与结点个数无关。
B.用邻接表法存储图，占用的存储空间大小与图中边数和结点个数都有关。
C.用邻接矩阵法存储图，占用的存储空间大小与图中结点个数和边数都有关。
D.用邻接矩阵法存储图，占用的存储空间大小只与图中边数有关，而与结点个数无关3、在图的邻接表存储结构上执行深度优先搜索遍历类似于二叉树上的（）A.先根遍历B.中根遍历C.后根遍历D.按层次遍历4、图的广度优先遍历算法类似于树的（）。
A. 中根遍历B. 先根遍历C. 后根遍历D. 按层次遍历5、设无向图的顶点个数为n，则该图最多有（）条边。
A．n-1 B．n(n-1)/2 C．n(n+1)/2 D．06、设有n个结点的无向图，该图至少应有( )条边才能确保是一个连通图。
A．n-1 B．n C．n+1 D．nlogn；7、一个含有n个顶点的非连通图，则（）：A．它的边一定不大于n-1 B．它的边一定不大于nC．它的边一定小于n-1 D．它的边一定大于08、要连通具有n个顶点的有向图，至少需要（）条边。
2014-2015学年7年级第一学期期末综合复习试题精选一济南版（最新教材）1对比下列两幅图，回答下列问题：（1）口腔上皮细胞可用图表示。
（2）制作口腔上皮细胞临时装片,在盖盖玻片时，要将盖玻片从水滴的一侧轻轻放平的目的是。
（3）能控制物质进出的是。
（4）含有遗传物质的是。
（5）在细胞质中，植物细胞有而动物细胞所没有的两个结构是。
2右上图是家鸽的肺和气囊示意图，请据图回答：（1）图中2、3分别是。
（2）当两翼举起时，家鸽完成了吸气，气体的流经途径是 (用图中数字和箭头表示)。
当两翼下垂时，家鸽完成呼气，气体的流经途径与吸气正好相反。
这样，每呼吸一次，空气就次经过肺，都进行气体交换。
这样的呼吸方式叫，其意义是。
3右图为细菌的结构示意图，请据图回答：（1）与动植物细胞相比，细菌特有的结构是，并且细菌都没有成形的。
（2）①和②的作用分别是。
（3）细菌的休眠体称为。
（4）细菌的繁殖方式为。
4根据下面的关节模式图回答问题：(1) ②③是分别。
（2）我们通常所说的脱臼是指从脱出来的现象。
（3）当骨骼肌受到神经传来的刺激而收缩时，就会牵动骨围绕活动，于是躯体就会产生运动。
（4）关节在运动中起作用。
5 如下两图，甲图表示某种树叶的外形图，图中①、②、③、④分别代表不同的物质，箭头表示物质进出的方向，乙图表示该种树的叶片结构示意图，请据图回答下列问题：（1）若甲图为光合作用示意图，则①从乙图中的进入叶片内，③通过乙图中的到达所需部位。
（2）若甲图为呼吸作用示意图，则甲图中①②分别为。
（3）若甲图为蒸腾作用示意图,则甲图中②为。
（4）叶片正面比背面颜色深，主要是因为乙图中⑥所示部分含有较多的。
6据图回答下列问题：（1）专门营寄生生活，不具有细胞结构的是（填数字及名称）。
（2）②和③所属生物类别在生物圈中的作用是促进生物圈中的。
（3）②③④⑤均为单细胞生物，在结构上最明显的区别是②没有。
（4）④在光下能利用二氧化碳和水制造有机物，并释放氧气，据此推测④含有哪一结构？（5）用放大镜观察⑤的生命活动，发现⑤趋向有利刺激（牛肉汁），躲避有害刺激（食盐），这说明生物体具有这一基本特征。
山东大学分光光度分析期末考试题一、选择题（每题1分，共20分）1.某非水溶性化合物，在200nm~250nm有吸收，当测定其紫外可见光谱时，应选用的溶剂为（）A. CH3-CH2-CH2-CH2-CH2-CH3B. CH3-CH2- OHC.CH2＝CH-CH2-CH＝CH2D.CH3-CH＝CH-CH＝CH-CH32.对于两种有色配合物M和N，已知其透光率关系为lg T N-lg T M=1，则其吸光度关系为（）A.A N-A M=1B. A N-A M=2C.A N-A M=-2D. A N-A M=-13.质量相等的A、B两物质，其摩尔质量M A＞M B。
经相同方式发色后，用同一比色皿在某一波长下测得其吸光度相等，则在该波长下它们的摩尔吸光系数的关系是（）A.εA＞εBB. εA＜εBC.εA=εBD.2 εA＞εB4.组分A和B的吸光光谱相互干扰，它们的最大吸收波长分别为λA和λB，若用双波长法测定A的含量，选择两工作波长λ1和λ2的方法是（）A.λ1=λA和λ2=λBB.以λ1为参比波长、λ2为测定波长，使B组分在λ2和λ1具有相等的吸光度C.使λ1=λB，选择λ2使B组分在λ2和λ1具有相等的吸光度D.使λ2=λB，选A、B两吸收峰相交处的波长为使λ15.某吸光物质的摩尔质量为M，则其摩尔吸光系数ε与吸光系数a之间的换算关系为（）A.ε=aMB.ε=a/MC.ε=aM/1000D.ε=1000a/M6.符合朗伯-比尔定律的有色溶液在被适当稀释时，其最大吸收峰的波长位置（）A.向长波方向移动B. 向短波方向移动C.不移动D.移动方向不确定7.对于符合朗伯-比尔定律的有色溶液，其浓度为c o时的透光度为T0；如果其浓度增大1倍，则此溶液透光度的对数为（）A. T0/2B.2T0C.2lg T0D.0.5lg T08.在光度分析中，某有色物质在某浓度下测得其透光度为T；若浓度增大1倍，则透光度为（）A. T2B. T/2C.2TD.T1/29.某物质的摩尔吸光系数很大，则表明（）A.该物质溶液的浓度增大B.光通过该物质溶液的光程长C.该物质对某波长的光的吸收能力很强D.用紫外-可见分光光度法测定该物质时其检出下限很低10.示差分光光度法和一般分光光度法的不同点在于参比溶液不同。
一、选择1. ---- Can you take photos with elephants?---- Certainly. ______ elephant is ____ useful animal. I like them. A.A, an B. An, an C. The, anD. The, a2 ---- Who is the student on the playground?? ---- Andy. _____ often takes a walk with ______.A. He, meB. She, meC. He, sheD. She, I3. ---- The reading room ______ from 9a.m. to 5p.m. ---- It ’s 4 p.m. now, but the door ______.A. is open, is closedB. closes, opensC. opens, is o penD. is open, close4. Jim’s house is made _____wood and his bedroom is______ the second floor.A. of; inB. from; onC. of; onD. from; in5.We shouldn’t watch films and we shouldn’t watch TV either.A.too much, too many B．too many, too muchC.too much, too much D．too many, too many6. ---- I want to go to school early tomorrow,Mum.---- OK.Don’t worry.I can____________at6:00in the morning.A.wakes you upB.wake you upC.wake up youD.wake up to you7. ---Would you like _____bread?--- No, I don’t want to eat _____.A. some; someB. any; someC. any; anyD. some; any8. John’s mother usually ______ to work. But now she ________ to work with John’s father.A. drives; is ridingB. is driving; is ridingC. drives; ridesD. is driving; rides9. —Mum, there ____ no milk in the fridge. —Oh, but there __ three bottles of orange juice.A. are; isB. are; areC. is; areD. is; is10. —I don’t know for the party.— You look so good now. I think the pink T-shirt the grey jeans very .A. what to wear; matches; wellB. how to wear it; matches; goodC. what to wear; fits; muchD. how to wear; fits; well11.—How much do you spend _______ the new boots?—They __________me 50 yuan.A. buying; costB. to buy; costC. buying; spendD. buy; take12. Eating too much is ________ for your ________.A. good; healthB. bad; healthyC. good; healthyD. bad; health13. Look! Here __________ Simon. He ___________ a pink shirt and a pair of jeans.A. comes; is wearingB. goes; is putting awayC. comes; is putting onD. goes; is dressing14.—Why Daniel look happy today?—He happy because he can’t do well in Music today.A. doesn't; doesn'tB. isn't; isn'tC. isn't; doesn'tD. doesn't; isn't15. —You look very cool today, Simon. —_______.A. Really? Thank youB. Oh, I don't think soC. No. I am not cool at allD. Yes.二、完形填空Many middle school students want to look cool. But not everyone can haveenough 1 to buy a lot of cool clothes. Chloe Murray has a(n) 2 to work outthis problem(问题). She opens a charitable clothes closet(慈善衣橱). It's calledChloe's Closet. She is an eighth-grade 3 at Jefferson Middle School in the US.Her school 4 the idea, too. The school lets her 5 a room for theproject(项目). Chloe's classmates join(加入) 6 , too. The charitable clothes closet has lots of fashionable (时尚的)clothes for girls and boys.Chloe thinks fashionable clothes make students look 7 and cool.People around the school and other schools donate(捐)both used and new 8 . The clothes closet is closed from 8 a.m. to 4 p.m.. It is only 9 after school. Students can “ 10” these clothes with the “money” they get. They can get “money” when they hand in(上交) their schoolwork on time or make corrections (改正) on homework. Since it opens, they have “sold” about 100 things to students.1. A. money B. energy C. exercise D. time2. A. answer B. idea C. email D. place3. A. teacher B. parent C. student D. worker4. A. catches B. gives C. likes D. picks5. A. order B. use C. draw D. leave6. A. them B. us C. him D. her7. A. slim B. slow C. smart D. small8. A. clothes B. books C. toys D. school9. A. clean B. free C. late D. open10. A. change B. design C. carry D. buy三、阅读理解(A)Happy Birthday! Do you want to have a special birthday? Have a look at our website (网站)! Birthday partyWe have two kinds of parties. The party will be at your home.Girls please visit www. g-birthday. com. Boys please visit www. b-birthday. com.Birthday dinnerWe have three kinds of set dinner (晚餐套餐) at the cost of ＄10 to ＄30 each.Set A＄10 per person (每人)Set B＄20 per personSet C ＄30 per personTel: 659 – 4876A. visit www. g-birthday. com.B. visit www. b-birthday. com.C. stay in the school hallD. get a free（免费的）meal( ) 2. You want to order Set B for ten persons（人）, how much do you need to pay?A.＄100.B.＄200C.＄300D.＄400 ( ) 3. Which of the following is TRUE according to the passage（根据短文）?A. They have three kinds of parties.B. The party will be in a big restaurant.C. They have two kinds of set dinners.D. There are different websites for boys and girls. ( )4. We can’t know about _________ from the passage.A. the telephone number of the websitesB. the cost of set dinnersC. the name of the restaurantD. the address (地址) of the website ( ) 60. The passage（短文）is probably（可能）_________.A. an advertisement (广告) of a websiteB. an invitation (邀请) to a birthday partyC. an advertisement of a restaurantD. a piece of news（新闻）about birthday parties(B)Fast walking is the exercise between walking and race walking. A study shows that fast walking has become the most popular exercise in China and many people walk more than 5000 steps a day. The results of the study are from QQ users. About 37% of the people choose(选择) fast walking as their favorite exercise; over 23% choose running and more than 14% choose riding bikes.Fast walking and running are easy, cost little and work well, so they are popular. And many people like doing exercise in nature not going to gyms. It's best to walk fast for at least 10 minutes at one time and walk up to 6,000 steps every day．The study also shows that people in Guiyang, Guizhou love sports most. On average (平均) everyone there walks 5941 steps every day. It seems that people in places with better environment and air like to do sports better．1. Many people in China walk more than _______________ steps a day．A. 6,000B. 5,941C. 5,000D. 5,4912. Over14%of the Chinese people choose _________ as their favorite exercise．A. B. C. D.3. Many people like to do exercise_____________．A. at homeB. in natureC. in the gymD. on the playground4. What’s the Chinese meaning of the underlined word “environment” in Paragraph 3?A. 大自然B. 环境C．花园 D. 户外5. The writer may think that___________．A. riding bikes is bad for peopleB. it's bad for people to walk fast for more than10 minutes at one timeC. people live in big cities like to do sports betterD. fast walking is not difficult, costs little and works well(C)Jane is only four years old and she doesn’t go to school. But she is very clever and learns a lot from her grandpa—an old teacher. One day, Jane’s mother, Mrs. John takes her to a party. Theguests(客人) all praise(表扬) a rich woman’s son. Mrs. John asks him a few questions, but his answers are wrong. Jane begins to laugh.The rich woman is angry. She tells her friend—a teacher to ask Jane some questions, but the little girl answers all. Then she asks, ‘‘There are three birds in a tree. How many will be left(被留下) if I kill(杀死) one?”“One” answers Jane. “You’re wrong!” calls out the rich woman. “All of them will fly away.” “Do you think a dead(死的) bird can fly?” asks the little girl.The guests begin to 1augh and the woman’s face turns red.1. Jane learns a lot from __________.A. his grandpaB. her motherC. Mrs. JohnD. her grandpa2. How many teachers are there in the story?A. One.B. Two.C. Three.D. Four.3. Who do you think is clever in the story?A. Mrs. John and the guests.B. The woman’s son.C. Jane.D. The rich woman.4. From the story we know that Jane _______.A. only goes to her grandpa’s schoolB. doesn’t want to go to schoolC. will make her mother happy at the partyD. 1ikes birds very much5. Why is the rich woman angry with Jane?A. Jane laughs at her son.B. Jane is a girl.C. Her son can’t answer the questions.D. Jane answers all the questions.四、词汇A) 根据括号中所给的汉语写出单词，使句子正确。
七年级上英语期末复习题（5）2014.01班级：________ 姓名：________ 得分：________一、单项选择10%( )1. ---There is ____________ art lesson this morning.---Yes. But where is ____________ art room, do you know?A. an; aB. an; /C. an; theD. the; a( )2. It’s six thirty now. He ________ breakfast.A. hasB. haveC. is havingD. are having( )3. Those flowers ________ Kate $56.A. payB. takeC. costD. spend( )4. Tom needs some help ________ his homework. Can you help ________?A.to; heB. with; himC. to; hisD. with; his( )5. Sometimes I feel ________ between meals, so I eat something.A. tiredB. happyC. sadD. hungry( )6. Uncle ________ exercises. It's not good for his health.A. sometimesB. seldomC. oftenD. always( )7. ---How many ____________ can you see in the kitchen?--- Three.A. cartons of orangesB. cartons of orangeC. carton of orangesD. carton of orange( )8. People do not celebrate in the USA．A. EasterB. the Dragon Boat FestivalC. HalloweenD. Christmas( )9. ---Look, there ____________ a pair of trainers under the sofa.---Oh, yes. The trainers ____________ mine.A. is; areB. are; isC. are; areD. is; is( )10. ---______ do you exercise? ---Less than 3 times a week.A. How manyB. How oftenC. How longD. How much二、阅读理解30%AToday Mike is playing near a river. Suddenly(突然), his knife goes into the water. He likes the knife very much. Now it’s lost(丢失). So he is very sad. Then an old woman comes up and asks Mike what is wrong. ―I lost my knife.‖ He says. The old woman gives him a gold(金色的)knife and asks ―Is it your knife?‖ ―No,‖ says the boy. The old woman gives him a silver(银色的)knife and asks again ― And this one?‖ ―No,‖ says the boy. Then she gives him an iron(铁的) knife. ―Yes, that’s mine.‖ Says the happy boy. The old woman says, ―No, take the gold and silver knife. You are a good boy.‖( )1. What happens(发生)to Mike when he is playing near a river?A. His father gives him a knife.B. He goes into the river.C. An old woman goes int o the water.D. His knife goes into the water.( )2. The word of ―sad‖ means (意思是) _________.A. 高兴B. 悲痛C. 可怜D. 生气( )3. Mike is happy because _________.A. he sees the gold knifeB. the old woman is kindC. he gets his knife back with the old woman’s helpD. he likes the old woman ( )4. _______ knife is Mike’s.A. The goldB. The silverC. The ironD. The old( )5. The story is about ________.A. three kinds of knivesB. an old kind womanC. a good boy and a kind womanD. playing near the waterBThere is a new park near Andy's home. It's fine today. Andy and his family are in the park now. On their left, there is a café(咖啡馆). On their right, there is a big lake. There are many flowers and trees around the lake. There's a small hill behind the lake. Nea r the lake, there are two signs. One says, "Don't swim in the lake!" The other says, "No fishing!" But you can go boating in the lake. There is a beautiful garden in the middle of the park. There is green grass and beautiful flowers in it. There are some small shops between the lake and the garden. The park is so nice. Andy and his family like it very much.( )6. The park near Andy's home is __________.A. new and beautifulB. old and beautifulC. clean and newD. old and clean ( )7. The café in the park is __________.A. on their rightB. in the lakeC. on their leftD. in the garden ( )8. People can _______ in the lake.A. swimB. fishC. boatD. dance ( )9. The shops in the park are not_________.A. smallB. bigC. goodD. pretty ( )10. Andy and his family____________.A. don’t like the lakeB. don’t like the parkC. like the parkD. are boating in itCThere is an interesting festival in China. On that special day, people in Hunan province always have a dragon boat match. The dragon boat is quite long, like a dragon. There are pictures of dragons on each side. The front of the boat is like the head of a dragon. During the match, about twenty men in the boat make it move quickly. There is always a man standing in the middle of the boat. He beats a drum(击鼓)to make the other boat in the same rhythm(节奏). It’s an interesting match when they are reaching(到达) the end. The audience(观众) along the lake shout for their favourite team. From this match, we have the name of the festival –the Dragon Boat Festival.This special day has another name—Duanwu Festival. About it we have a story. Long long ago, there was a famous poet(诗人) called Qu Y uan. He was famous not only for his poems(诗), but also for thinking a lot for the people. After he died, people eat rice dumplings in memory of(纪念) him on this special day.( )11. What’s the name of this special festival? It’s called______.A. Chinese New YearB. Mid-Autumn FestivalC. the Dragon Boat FestivalD. Halloween( )12. Where does the name Dragon Boat Festival come from?A. The dragon match in Hunan province.B. The dragon boat match in Hunan province.C. The boat like a dragon in Sichuan province.D. The dragon flying in the sky. ( )13. In the match, there is always a man standing in the middle to______.A. shout for themB. help them shoutC. carry a dragon for themD. beat a drum for them( )14. It’s also called Duanwu Festival in memory of ________.A. a poet called Qu YuanB. a poet called Li BaiC. a poet called Du FuD. a poet called Bai Juyi( )15. On that day, people eat__________.A. pumpkinsB. moon cakesC. rice dumplingsD. Candies三、任务型阅读10%Here is something about Peter’s family. There are five people in his family. They are his father, his mother, his grandfather, his sister Kate and him. His father, Mr Brown, is a doctor. (1) _____ is thirty. Peter’s (2)_____, Mrs Brown, is a teacher. She is thirty too. Peter and his sister study in their mother’s school. Peter is in Class Two, Grade Eight. Kate is in Class Two, Grade Seven. (3)They go to school at 6:30 in the morning. Look! That old man is Peter’s grandfather. He is very old. He walks his dog every morning. Where is Kate? Look! She is under that big tree.1. 在（1）（2）处填入合适的词使句子完整。
ba有理数常考题型1.3的相反数是 ，－2的绝对值是 . 2．数轴上到2所表示的点距离为3个单位的数是__________. 3. 已知（2)2-x ＋1+y ＝０，则y x= .4. 某校共有m 名学生，其中男生人数占51%，则该校有 名女生．5．我们知道：式子||x －3的几何意义是数轴上表示数x 的点与表示数3的点之间的距离，则式子||x －2＋||x ＋1的最小值为 ． 6．有如下一串数：2，5，10，17，26，？，50．仔细观察后回答：缺少的数？是 ． 7．在有理数的原有运算法则中，我们补充定义新运算“⊕”如下：当a ≥b 时，a ⊕b =b 2；当a ＜b 时，a ⊕b =a ．则当x =2时，(1⊕x )－(3⊕x )的值为 ． （注：“·”和“－”仍为有理数运算中的乘号和减号）8. 在迎新春活动中，甲、乙、丙、丁围成一圈依序报数，规定：①甲、乙、丙、丁首次报的数依次为1、2、3、4，接着甲报5、乙报6……按此规律，后一位同学报的数比前一位同学报的数大1，当报的数是50时，报数结束；②若报出的数为3的倍数，则报该数的同学需拍手一次，在这个活动中，甲同学需要拍手的次数为 ． 9．有理数a 、b 在数轴上的位置如图所示，则化简a b a +-的结果为( )A. b a --2B. －b a +2C.b D. b -10．我国是一个严重缺水的国家，大家应倍加珍惜水资源，节约用水。
据测试，拧不紧的水龙头每秒钟会滴下2滴水，每滴水约05.0毫升。
小明同学在洗手后，没有把水龙头拧紧，当小明离开4小时后水龙头滴了（ ）毫升水．（用科学记数法表示） A.1440 B.31044.1⨯ C.410144.0⨯ D.210144⨯ 11．如图，平面内有公共端点的八条射线OA 、OB 、OC 、OD 、OE 、OF 、OG 、OH ，从射线OA 开始按逆时针方向依次在 射线上写上数字1、2、3、4、5、6、7、8、9，…．按此规 律，数2010在射线 （ ） A ．OA 上 B ．OB 上 C ．OC 上 D ． OF 上12. 计算题（1）)3(189-÷-- （2））（24618512752-⨯⎪⎭⎫⎝⎛--+-G16151413121110987654321OE CBA（3）22010)3(33)211(1--⨯÷-+- （4）[]24)3(3611-+-⨯--13. 如图一根木棒放在数轴上，木棒的左端与数轴上的点A 重合，右端与点B 重合．①若将木棒沿数轴向右水平移动，则当它的左端移动到B 点时，它的右端在数轴上所对应的数为20；若将木棒沿数轴向左水平移动，则当它的右端移动到A 点时，则它的左端在数轴上所对应的数为5（单位：cm ），由此可得到木棒长为 cm ．②由题(1)的启发,请你借助“数轴”这个工具帮助小红解决下列问题:问题:一天，小红去问曾当过数学老师现在退休在家的爷爷的年龄，爷爷说：“我若是你现在这么大，你还要40年才出生；你若是我现在这么大，我已经125岁，是老寿星了，哈哈！”，请求出爷爷现在多少岁了？用字母表示数常考题型1.若－23x m +4y 3与4xy 5+n 是同类项，则n ＋m ＝________.2．若x －3y ＝－2,那么3－x ＋3y 的值是 .3．单项式225ab π-的系数是___________，多项式225ab π-+3bc —1 的次数是________．4．已知代数式x 2+x +1的值是8，那么代数式4x 2+4x +9的值是 5．已知a ＋b ＝12，a ＋c ＝2，那么代数式(b －c )2－3(c －b )＋94的是（ ）A ．－32B ．0C ．32D ．2746. 先化简，再求值：(1)2x 2＋(－x 2－2xy ＋2y 2)－3(x 2－xy ＋2y 2)，其中x ＝2，y ＝－12．(2)y xy x y x xy y x 22)3(2)(22222----+的值，其中2,1=-=y x输入x平方÷2输出 第10题一元一次方程题型训练1．已知关于x 的方程02)2(1=+--m x m 是一元一次方程，则m = . 2．如图是一组数值转换机，若它的输出结果为2，则x = . 3．已知x ＝2是关于x 的方程2x －k ＝1的解，则k 的值是________． 4.元旦期间，商业大厦推出全场打八折的优惠活动，持贵宾卡可在八折的基础上继续打折，小明妈妈持贵宾卡买了标价为10000元的商品，共节省2800元，则用贵宾卡又享受了 折优惠．5．某市为了鼓励居民节约用水，对自来水用户按如下标准收费：若每月每户用水不超过12吨，按每吨a 元收费；若超过12吨，则超过部分按每吨2a 元收费，如果某户居民五月份缴纳水费20a 元，则该居民这个月实际用水 吨.６．在某月历表中，竖列相邻的三个数的和为39，则该列第一个数是 （ ）A ．6B ．12C ．13D ．14７．A 、B 两地相距450千米，甲、乙两车分别从A 、B 两地同时出发，相向而行。
牛津译林版八年级上期末复习英语Unit 7 小题练习单选1.It’s time ____ a talk with your son. He didn’t pass the Maths exams.A.f or havingB.for you to haveC.to you to haveD. for you having2.It will be _____ tomorrow and there will be much ______.A.r ainy; windB.rain; windyC.rain; windD.rainy; windy3.What did the weatherman _____ about the weather tomorrow?A.tellB. talkC. sayD. speak4.It rains so _____ that we have to walk very _______.A.heavy; slowB.hard; slowerC. hard; slowlyD. heavy; slowly5.What _____ bad weather it was yesterday! --- Yes, ____ weather was terrible, wasn’t it?A.a; aB./; theC.a; theD. /; a6.--- What about a cup of coffee? You’ll feel better.--- Thanks, I am sleepy. I really need ____.A.oneB.thatC.thisD.it7.In spring, grass, flowers and trees ______ the hill.A.coverB.are covered withC.are coveringD. are covered in8.My younger sister always buys _____ my birthday.A.something awfully forB. a awful present forC.something awful toD.something awful for9. I forgot ____ the door when I left home just now. To my surprise, when I came back, I found it already ______.A.c losing; closedB.to close; closedC.closing; closingD.to close; closing10. They gathered closely together to ______ themselves from the wind.A.preventB.provideC.protectD.prepare11.Robin sings ____ than I, but he doesn’t sing ____ my sister.A.worse; as better asB.worse; as good asC. better; as good asD. better; as well as12. --- Sorry, ______. What do you mean by saying “look out”?--- I asked you “to be careful”, not “to look outside”.A.I can’t hear youB.I can’t hear clearlyC.I don’t notice youD. I don’t follow you13. The temperature tomorrow will be ____ than today. It will stay ____ zero, _____ 2℃.A.higher; above; atB.hot; below; atC.higher; above; toD. high; below; to14.He is ____ interested in English. He often works at it until _____ into the night.A.deep; deeplyB.deep; deepC.deeply; deepD.deeply; deeply15.The children are making _____. How ______ they are playing!A.too much noise; noisilyB.too much noise; noisyC.much too noise; noisyD.much too noisy; noise16. He got out of the car slowly, _____ to the nearest house and telephoned his friend for help.A.walkingB.walkedC. to walkD. walks17. I found _____ hard to tell the differences between the twins Mark and Mike.A.it’sB. itC. itsD. that18. The boy wasn’t ____. As a result, he didn’t pass the exam.A.enough carefulB.enough carefullyC.carefully enoughD. careful enough19. --- I failed my English exam again. I really want to give up.--- Come on. ____ is really over until the moment you stop trying.A.EverythingB.NothingC. AnythingD. None20.Look at the _____ look on their faces. The match must be wonderful.A.boredB. excitingC. excitedD. boring21.The radio says there will be ____ tomorrow. I think it will be _____.A. a bit snow; a bit snowierB. a bit of snowier; a bit of snowC.a bit snowier; a bit ofsnow D.a bit of snow; a bit snowier22.We saw her face ______ a white silk scarf ____ after she heard the teacher’s words.A.covered with; turned redB.was covered with; turn redC.covering; turned redD. covered with; turn red词汇1.Look, what a heavy snow! Maybe it will be even _____(snow) tomorrow.2.--- It _____ heavily last Thursday. There is much ______ this year in Wuxi.--- Yes, it’s much _____ than last year. (rain)3.We usually feel cool and comfortable after heavy ______(阵雨) in summer.4.--- What bad weather! --- Yes, the radio says it will be much ______(wind) tomorrow.5.The woman came in and began to have dinner without ______(introduction) herself.6.It was so quiet that you could hear a pin(针) _______(落下).7.It will be ______(雨) in three hours and there will be much _______(风).8.The weather report says it’s going to be ______(多云) in the afternoon.9.July, August and September are the _______(rain) months of the year in Thailand.10.Can you get someone else to help us finish the ______(剩余的) of the work?11.Do they find out what ______(引起) the big fire?12.I’m afraid you are the _______(noise) in your group. Please be quiet.13.My mother told me that the sun ______(rise) in the east and sets in the west.14.He ________(打赌) 200 yuan on the final score of the match, but failed.15.His _______(突然的) death surprised us all.动词1.--- Thank you for your wonderful treat last night. --- I’m glad you _____(enjoy) yourself.2.She always _______(hide) herself away in her office all day during her stay in Shanghai.3.We should stop all these farmers ______(make) more space for plants and rare birds in nature.4.--- Mary dances best in our school.--- I agree. I’ll never forget _______(see) her dance for the first time.5.The water of the river ______(rise) quickly last year because of the flood.6.--- What do you eat so much ice cream for? --- ______(feel) cool.7.The plane ______(not arrive) here on time because the radio says there will be a heavy snow soon.8.The pianist ______(feel) much better after she _____(take) some medicine just now.9.I think ______(do) the work correctly is more important than to finish it quickly.10.Jerry is a cheerful person. He has nothing ______(worry) about.11.Grace, how can you finish _______(write) the article in such a short time?12.The poor old man sat there alone, ______(watch) the children play football.13.When ________(enter) the classroom, I saw a wallet ______(lie) on the floor.14.A strong wind _______(blow) away all the clouds in the sky. It becomes clear now.15.We didn’t see snow for years because the temperature always ______(stay) above zero.16.I have to go now. Someone _____(wait) for me at the school gate.17.About 40 per cent of the students now in this school ______(come) from Shanghai.18.I stopped ______(listen), but heard nothing.19.Jessica may no more _______ (prevent) his son from meeting his friends.20.The news says that the number of Coronavirus people ________(not drop) at the end of this year in the USA.完成句子1.穿上这条棉质的短裙你会觉得凉爽。
部编版七年级上册语文期末复习：词语专项练习题第一单元1.春1.山lǎng rùn（）起来了，水涨起来了，太阳的脸红起来了。
2.混着青草味儿，还有各种花的香，都在微微润湿的空气里yùn niàng（）。
3.呼朋引伴地mài nòng（）清脆的hóu long（），唱出宛转的曲子，与轻风流水yìng hè（）着。
4.牛背上牧童的短笛，这时候也成天在liáo liàng（）地响着。
5.傍晚时候，上灯了，一点点黄晕的光，hōng tuō（）出一片安静而和平的夜。
6.他们的房屋，稀稀疏疏的，在雨里jìng mò（）着。
7.舒活舒活筋骨，dǒu sǒu dǒu sǒu（）精神，各做各的一份事去。
8.天上fēng zheng（）渐渐多了，地上孩子也多了。
9.春天像jiàn zhuàng（）的青年，有铁一般的胳膊和腰脚，领着我们上前去。
10.鸟儿将窠巢安在繁花嫩叶当中，高兴起来了，hū péng yǐn bàn（）地卖弄清脆的喉咙，11.春天像小姑娘，huā zhī zhāo zhǎn（）的，笑着，走着。
2.济南的冬天1.山尖全白了，给蓝天xiáng shàng（）一道银边。
2.暖和ān shì（）地睡着，只等春风来把它们唤醒，这是不是个理想的境界？3.他们一看那些小山，心中便觉得有了zhuó luò（），有了依靠。
4.因为这样cí shàn（）的冬天，干啥还希望别的呢！5.看着看着，这件花衣好像被风儿吹动，叫你希望看见一点更美的山的jī fū（）。
6.就是下小雪吧，济南是受不住大雪的，那些小山太xiù qì（）！7.古老的济南，城里那么狭窄，城外又那么kuān chǎng（），8.倒反在绿萍上冒着点热气，水藻真绿，把终年zhù xù（）的绿色全拿出来了。
七年级上学期英语期末复习题及答案听力部分(20分)I．听句子，选出句中所包含的信息。
(共5分)()1.A.pantB.pandaC.paper()2.A.workB.workerC.walk()3.A.heepB.leepC.hop()4.A.youB.yourC.your()5.A.fifthB.fiftiethC.fifteenthII.听句子，选出适当的答语。
(共5分)()6．A．July7th．B．Sunday．C．Sunny．()7．A．Theametoyou.B．Thankalot．C．Allright．()8．A．15Yuan．B．50meter．C．30kilo．()9．A．Inthemorning．B．Inourchool．C．Milkandbread．()10.A.HeiadB.HeiillC.HeilotIII.听对话及问题选择正确的答案。
(共5分)()11.WhatiBobdoingA.PlayingfootballB.HavingdinnerC.Doinghihomework()12.Whatith eboy’couinA.AdoctorB.Anure(护士)C.Ateacher()13.WhatiLiMing’favoritefoodA.DumplingB.DonutC.Pizza()14.Whatithebirthdaypreent()15.HowmanybirdarethereinthekyA.ElevenB.TwelveC.ThirteenIV．根据所听短文内容，选出问题的最佳答案。
(共5分) ()16.Whydoen’tCindygotochooltodayA.BecauetodayiFriday.B.BecauetodayiMonday.C.BecauetodayiSunday.()17.HowdotheygotothezooA.Bybike.B.Bybu.C.Bycar.()18.What’themonkeyeatinginthetreeA.Anorange.B.Anapple.C.Abanana.()19.HowdoethelittlelionfeelinthezooA.Happy.B.Hot.C.Lonely.()20.WhatiCindy’favoriteanimalA.Thepanda.B.Themonkey.C.Thelion.笔试部分（100分）二．单项选择。
2020-2021学年华东师大新版七年级上册数学期末复习试卷一．选择题（共10小题，满分30分，每小题3分）1．﹣3的相反数为（）A．﹣3B．﹣C．D．32．国家主席习近平提出“金山银山，不如绿水青山”，国家环保部大力治理环境污染，空气质量明显好转，将惠及13.75亿中国人，这个数字用科学记数法表示为（）A．13.75×106B．13.75×105C．1.375×108D．1.375×109 3．单项式﹣的系数和次数是（）A．系数是，次数是3B．系数是﹣；，次数是5C．系数是﹣，次数是3D．系数是5，次数是﹣4．某大楼地上共有12层，地下共有4层．某人乘电梯从地下2层升至地上9层，电梯一共升了（）A．7层B．8层C．9层D．10层5．如图是某个几何体的展开图，该几何体是（）A．三棱柱B．三棱锥C．圆柱D．圆锥6．下列各式中，正确的是（）A．x2y﹣2x2y＝﹣x2y B．2a+3b＝5abC．7ab﹣3ab＝4D．a3+a2＝a57．下列5个数中：2，1.0010001，，0，﹣π，有理数的个数是（）A．2B．3C．4D．58．如图是婴儿车的平面示意图，其中AB∥CD，∠1＝120°，∠3＝40°，那么∠2的度数为（）A．80°B．90°C．100°D．102°9．若x＝3n+1，y＝3×9n﹣2，则用x的代数式表示y是（）A．y＝3（x﹣1）2﹣2B．y＝3x2﹣2C．y＝x3﹣2D．y＝（x﹣1）2﹣210．已知a+2b＝5，则代数式3（2a﹣3b）﹣4（a﹣3b+1）+b的值为（）A．14B．10C．6D．不能确定二．填空题（共5小题，满分15分，每小题3分）11．比较大小：﹣﹣（填“＜”或“＞”）．12．如图，将一块含有30°角的直角三角板的两个顶点叠放在矩形的两条对边上，如果∠1＝27°，那么∠2＝°．13．如图是由几个相同的小正方体搭成的几何体的三视图，则搭成这个几何体的小正方体有个．14．已知a表示一个一位数，b表示一个两位数，把a放到b的左边组成一个三位数，则这个三位数可以表示为．15．如图，用围棋子按某种规律摆成的一行“七”字，按照这种规律，第n个“七”字中的围棋子有个．三．解答题（共8小题，满分75分）16．计算题：（1）﹣23﹣[﹣0.2÷×（﹣2）2﹣|﹣5|]；（2）（﹣+﹣）÷（﹣）．17．化简求值：3x2y﹣[2xy2﹣2（xy﹣x2y）+xy]+3xy2，其中x＝3，y＝﹣．18．阅读与计算：出租车司机小李某天上午营运时是在太原迎泽公园门口出发，沿东西走向的大街上进行的，如果规定向东为正，向西为负，他这天上午所接送八位乘客的行车里程（单位：km）如下：﹣3，+6，﹣2，+1，﹣5，﹣2，+9，﹣6．（1）将最后一位乘客送到目的地时，小李在什么位置？（2）将第几位乘客送到目的地时，小李离迎泽公园门口最远？（3）若汽车消耗天然气量为0.2m3/km，这天上午小李接送乘客，出租车共消耗天然气多少立方米？（4）若出租车起步价为5元，起步里程为3km（包括3km），超过部分每千米1.2元，问小李这天上午共得车费多少元？19．育杰中学七年级一班3名教师决定带领本班a名学生利用假期去某地旅游．甲旅行社的收费标准为：教师全价，学生半价；乙旅行社的收费标准为：不管老师还是学生一律八折优惠，这两家旅行社的全价都是每人500元．（1）请分别用含a的式子表示三名教师和a名学生选择这两家旅行社所需的费用；（2）当a＝55时，选择哪一家旅行社更合算？20．如图，点C是AB上一点，点D是AC的中点，若AB＝12，BD＝7，求CB的长．21．如图，直线AB、CD相交于点O，OE平分∠BOD，∠AOC＝72°，OF⊥CD，垂足为O，求∠EOF的度数．22．如图，已知直线AB∥CD，直线MN分别交AB、CD于M、N两点，若ME、NF分别是∠AMN、∠DNM的角平分线，试说明：ME∥NF解：∵AB∥CD，（已知）∴∠AMN＝∠DNM（）∵ME、NF分别是∠AMN、∠DNM的角平分线，（已知）∴∠EMN＝∠AMN，∠FNM＝∠DNM（角平分线的定义）∴∠EMN＝∠FNM（等量代换）∴ME∥NF（）由此我们可以得出一个结论：两条平行线被第三条直线所截，一对角的平分线互相．23．阅读并填空问题：在一条直线上有A，B，C，D四个点，那么这条直线上总共有多少条线段？要解决这个问题，我们可以这样考虑，以A为端点的线段有AB，AC，AD3条，同样以B为端点，以C为端点，以D为端点的线段也各有3条，这样共有4个3，即4×3＝12（条），但AB和BA是同一条线段，即每一条线段重复一次，所以一共有条线段．那么，如果在一条直线上有5个点，则这条直线上共有条线段．如果在一条直线上有n 个点，那么这条直线上共有条线段．知识迁移：如果在一个锐角∠AOB内部画2条射线OC，OD，那么这个图形中总共有个角，若在∠AOB内画n条射线，则总共有个角．学以致用：一段铁路上共有5个火车端，若一列客车往返过程中，必须停靠每个车站，则铁路局需为这段线路准备种不同的车票．参考答案与试题解析一．选择题（共10小题，满分30分，每小题3分）1．解：﹣3的相反数是3．故选：D．2．解：13.75亿这个数字用科学记数法表示为1.375×109．故选：D．3．解：单项式﹣的系数和次数是：﹣，5．故选：B．4．解：根据题意得：9﹣（﹣2）﹣1＝10，则某人乘电梯从地下2层升至地上9层，电梯一共升了10层，故选：D．5．解：观察图形可知，这个几何体是三棱柱．故选：A．6．解：A、x2y﹣2x2y＝﹣x2y，故A正确；B、不是同类项，不能进一步计算，故B错误；C、7ab﹣3ab＝4ab，故C错误；D、a3+a2＝a5，不是同类项，故D错误．故选：A．7．解：有理数有2，1.0010001，，0，共4个．故选：C．8．解：∵AB∥CD，∴∠A＝∠3＝40°，∵∠1＝120°，∴∠2＝∠1﹣∠A＝80°，故选：A．9．解：∵x＝3n+1，y＝3×9n﹣2＝3×32n﹣2，∴y＝3（x﹣1）2﹣2．故选：A．10．解：∵a+2b＝5，∴原式＝6a﹣9b﹣4a+12b﹣4+b＝2a+4b﹣4＝2（a+2b）﹣4＝10﹣4＝6，故选：C．二．填空题（共5小题，满分15分，每小题3分）11．解：|﹣|＝，|﹣|＝，﹣，故答案为：＞．12．解：∵将一块含有30°角的直角三角板的两个顶点叠放在矩形的两条对边上，∠1＝27°，∴∠4＝90°﹣30°﹣27°＝33°，∵AD∥BC，∴∠3＝∠4＝33°，∴∠2＝180°﹣90°﹣33°＝57°，故答案为：57°．13．解：由主视图与左视图可以在俯视图上标注数字为：主视图有三列，每列的方块数分别是：2，1，1，左视图有两列，每列的方块数分别是：1，2，俯视图有三列，每列的方块数分别是：2，1，2，∴总个数为1+2+1+1+1＝6个．故答案为6．14．解：这个三位数可以表示为100a+b．故答案是：100a+b．15．解：∵第1个图形有1+4×1+2＝7个棋子，第2个图形有1+4×2+3＝12个棋子，第3个图形有1+4×3+4＝17个棋子，…∴第n个“七”字中的棋子个数是：1+4n+（n+1）＝5n+2．故答案为：5n+2．三．解答题（共8小题，满分75分）16．解：（1）＝﹣8﹣（﹣××4﹣5）＝﹣8﹣（﹣1﹣5）＝﹣8+6＝﹣2；（2）＝＝＝9﹣8+6＝7．17．解：原式＝3x2y﹣（2xy2﹣2xy+3x2y+xy）+3xy2，＝3x2y﹣2xy2+2xy﹣3x2y﹣xy+3xy2，＝xy2+xy，当中x＝3，y＝﹣时，原式＝3×+3×（﹣）＝﹣1＝﹣．18．解：（1）﹣3+6﹣2+1﹣5﹣2+9﹣6＝﹣2km，答：将最后一位乘客送到目的地时，小李在迎泽公园门口西边2km处．（2）|﹣3|＝3，|﹣3+6|＝3，|﹣3+6﹣2|＝1，|﹣3+6﹣2+1|＝2，|﹣3+6﹣2+1﹣5|＝3，|﹣3+6﹣2+1﹣5﹣2|＝5，|﹣3+6﹣2+1﹣5﹣2+9|＝4，|﹣3+6﹣2+1﹣5﹣2+9﹣6|＝2．∵5＞4＞3＝3＝3＞2＝2＞1，∴将第6位乘客送到目的地时，小李离迎泽公园门口最远．（3）（|﹣3|+|6|+|﹣2|+|1|+|﹣5|+|﹣2|+|9|+|﹣6|）×0.2＝6.8m3答：这天上午小李接送乘客，出租车共消耗天然气6.8立方米．（4）[（6+5+9+6）﹣3×4]×1.2+8×5＝56.8元，答：小李这天上午共得车费56.8元．19．解：（1）根据题意得：甲旅行社费用：（250a+1500）元；乙旅行社费用：（400a+1200）元；（2）当a＝55时，250a+1500＝15250，400a+1200＝23200，∵15250＜23200，∴选择甲旅行社更合算．20．解：∵AB＝12，BD＝7，∴AD＝AB﹣BD＝12﹣7＝5．∵点D是AC的中点，∴AC＝2AD＝2×5＝10．∴CB＝AB﹣AC＝12﹣10＝2．21．解：∵直线AB和CD相交于点O，∴∠BOD＝∠AOC＝72°，∵OF⊥CD，∴∠BOF＝90°﹣72°＝18°，∵OE平分∠BOD，∴∠BOE＝∠BOD＝36°，∴∠EOF＝36°+18°＝54°．22．解：∵AB∥CD，（已知），∴∠AMN＝∠DNM（两直线平行，内错角相等），∵ME、NF分别是∠AMN、∠DNM的角平分线（已知），∴∠EMN＝∠AMN，∠FNM＝∠DNM（角平分线的定义），∴∠EMN＝∠FNM（等量代换），∴ME∥NF（内错角相等，两直线平行），由此我们可以得出一个结论：两条平行线被第三条直线所截，一对内错角的平分线互相平行，故答案为：两直线平行，内错角相等，，，内错角相等，两直线平行，内错，平行．23．解：问题：如果在一条直线上有5个点，则这条直线上共有＝10条线段．如果在一条直线上有n个点，那么这条直线上共有条线段．；知识迁移：在∠AOB内部画2条射线OC，OD，则图中有6个不同的角，在∠AOB内部画n条射线OC，OD，OE，…，则图中有1+2+3+…+n+（n+1）＝个不同的角；学以致用：5个火车站共有线段条数×5×4＝10，需要车票的种数：10×2＝20（种）．故答案为：10，，6，，20．。
七年级科学上册期末复习题
七年级科学上册期末选择专练
1、下列属于科学发现的是（）
A、牛顿发现了万有引力B、小明发现了西湖十大美景
C、小王发现蚯蚓有触角D、小东发现自己说得很好
2、某温度计0OC时水银柱长度为4cm，在100OC时，水银柱长度为24cm，把它插入20OC的水中，则水银柱长度为（）
A、2OCB、8OCC、4OCD、以上都不对
3、一个已经调节好的托盘天平拿到别一个地方使用，那幺（）
A、不需要重新调节，就可以直接使用B、只要桌面水平就可以
C、需要调节天平的横梁平衡方可使用
D、只要小心移动，不必重新调整
4、关于体温计，下列说法中不正确的的是（）
A、体温计的测量范围是35OC~42OC
B、读数时，体温计不能离开身体，否则就不准确了
C、使用体温计前，应用力甩一甩
D、体温计是根据液体热胀冷缩性质制成的
5、生物进行呼吸作用时，利用和产生的的气体分别是（）
A、氧氯、二氧化碳B、二氧化碳、氧气
C、氮气、二氧化碳D、二氧化碳、氮气
6、爬行动物体表的鳞片或甲的作用是（）
A、利于运动B、保护皮肤
C、利于防御敌害D、防止体内水分蒸发并有保护作用。
《用方程解决问题学案》期末复习学案（7）班级 姓名 成绩一、基础训练1.一个两位数，十位上的数字是个位上数字的2倍，如果把十位上的数字与个位上的数字对调，那么得到的两位数就比原来的两位数小36，则原来的两位数是___本题考查的是什么问题？通常要寻找的等量关系是什么？_____________________________________________________________________________2.某文艺团体为“希望工程”募捐组织了一场那个义演，成人票每张8元，学生票每张5元，共售出1000张票，筹得票款6950元，若假设成人票x 张，那么可以列出方程________________________________________________.本题考查的是什么问题？通常要寻找的等量关系是什么？_____________________________________________________________________________3.甲、乙两人在一条长400幂的环形跑道上跑步，若同向跑，每隔103分钟相遇一次，若反向跑，则每隔40秒相遇一次，已知甲比乙跑的更快，这甲的速度是_____,乙的速度是_____.本题考查的是什么问题？通常要寻找的等量关系是什么？_____________________________________________________________________________4.某车间有62名工人，1名工人每天能生产甲零件12个或者乙零件23个，应分配多少人生产甲种零件，多少人生产乙种零件，才能使每天生产的甲种零件和乙种零件配套？（每3个甲零件和2个乙零件配套）本题考查的是什么问题？通常要寻找的等量关系是什么？_____________________________________________________________________________5.某商场卖出两个进价不同的手机，都卖了1200元，其中一个盈利50%，另一个亏本20%，这次买卖中，这家商场的盈利如何？_______________________________.本题考查的是什么问题？通常要寻找的等量关系是什么？_____________________________________________________________________________例题推荐例1. 29000元.设儿童票售出x 张，依题意可列出下列哪一个一元一次方程式？( )A ．30x +50(700-x )=29000B ．50x +30(700-x )=29000C ．30x +50(700+x )=29000D ．50x +30(700+x )=29000例2.A 种饮料B 种饮料单价少1元，小峰买了2瓶A 种饮料和3瓶B 种饮料，一共花了13元，如果设B 种饮料单价为x 元/瓶，那么下面所列方程正确的是（ ）A ．2(1)313x x -+=B ．2(1)313x x ++=C ．23(1)13x x ++=D ．23(1)13x x +-=例3. 班长去文具店买毕业留言卡50张，每张标价2元，店老板说可以按标价九折优惠，则班长应付（）A．45元B．90元C．10元D．100元例4.为了贯彻落实国务院关于促进家电下乡的指示精神，有关部门自2007年12月底起进行了家电下乡试点，对彩电、冰箱（含冰柜）、手机三大类产品给予产品销售价格13%的财政资金直补．企业数据显示，截至2008年12月底,试点产品已销售350万台（部），销售额达50亿元，与上年同期相比，试点产品家电销售量增长了40%．（1）求2007年同期试点产品类家电销售量为多少万台（部）？（2）如果销售家电的平均价格为：彩电每台1500元，冰箱每台2000元，•手机每部8003倍，求彩电、冰箱、手机三大类产品元，已知销售的冰箱（含冰柜）数量是彩电数量的2分别销售多少万台（部），并计算获得的政府补贴分别为多少万元？例5.为了防控甲型H1N1流感，某校积极进行校园环境消毒，购买了甲、乙两种消毒液共100瓶，其中甲种6元/瓶，乙种9元/瓶．（1）如果购买这两种消毒液共用780元，求甲、乙两种消毒液各购买多少瓶？（2）该校准备再次．．购买这两种消毒液（不包括已购买的100瓶），使乙种瓶数是甲种瓶数的2倍，且所需费用不多于．．．1200元（不包括780元），求甲种消毒液最多能再购买多少瓶？二、针对训练1. 整理一批图书，如果由一个人单独做要花60小时。
专项复习一字词六、下列音节的标调哪种是正确的，在后面的括号里打“√”。
xiǎ（）shǔi（） niú（） hǔan（）xíe（） shuǐ（） níu（） huǎn（）quǎ（） bái（） lài（） zhúo（）qùe（） baí（） leí（） zhuō（）能力提升七、给下面的汉字注音。
t óu f ɑ k é k ǒu b ái ti ān k ě sh ì （ ） （ ） （ ） （ ） k āi shu ǐ du ō sh ǎo shu ǐ ni ú xi ǎo ni ǎo （ ） （ ） （ ） （ ） k ǒu c ái z ì j ǐ sh àn ɡ y ī h é p ín ɡ （ ） （ ） （ ） （ ） r én l ì ɡu ān x īn l ì zh èn ɡ h òu ti ān （ ） （ ） （ ） （ ） hu í l ái ɡōn ɡ ch ǎn ɡ m én k ǒu s ì f ān ɡ （ ） （ ） （ ） （ ） du ì b ǐ xi à y ǔ c ón ɡ l ái n ǐ men （ ） （ ） （ ） （ ）九、比一比，再组词。
水（）人（） 大（ ） 月（ ） 木（） 入（ ） 太（ ） 目（ ） 禾（ ） 从（ ） 天（ ） 日（ ） 左（） 鸟（ ） 里（ ） 学（ ） 右（） 马（ ） 果（ ） 字（ ） 石（ ） 乌（ ）早（ ） 写（ ） 十、按要求写词语。
1.写出下面词语的近义词。
凉——（） 弯——（） 里——（） 洁白——（） 柔软——（） 快活——（） 2.写出下面词语的反义词。
2022-2023学年七上数学期末模拟试卷注意事项:1．答题前，考生先将自己的姓名、准考证号码填写清楚，将条形码准确粘贴在条形码区域内。
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一、选择题(每小题3分,共30分)1．用铝片做听装饮料瓶，现有100张铝片，每张铝片可制瓶身16个或制瓶底45个，一个瓶身和两个瓶底可配成一套，设用x 张铝片制作瓶身，则可列方程（ ）A ．1645(100)x x =-B ．1645(50)x x =-C ．21645(100)x x ⨯=-D ．16245(100)x x =⨯-2．若ma mb =，那么下列等式不一定成立的是（ ）A ．22ma mb +=+B ．a b =C ．ma mb -=-D ．66ma mb -=-3．某台电冰箱冷藏室的温度是4℃，冷冻室的温度比冷藏室的温度低22℃，那么这台电冰箱冷冻室的温度为（ ） A ．26-℃ B ．22-℃ C ．18-℃ D ．16-℃4．有m 辆客车及n 个人，若每辆客车乘40人，则还有10人不能上车，若每辆客车乘43人，则只有1人不能上车，有下列四个等式：①40m+10=43m ﹣1；②1014043n n ++=；③1014043n n --=；④40m+10=43m+1，其中正确的是（ ） A ．①② B ．②④ C ．②③ D ．③④5．十年来，我国知识产权战略实施取得显著成就，全国著作权登记计量已达到2748000件．将数据2748000用科学记数法表示为（ ）A ．3274810⨯B ．4274.810⨯C ．62.74810⨯D ．70.274810⨯6．下列代数式中符合书写要求的是（ ）A ．4abB ．143xC ．x y ÷D ．52a - 7．把如图折成正方体后，如果相对面所对应的值相等，那么xy 的值为（ ）A ．15B ．3C ．5D ．-38．下列结论正确的是( )A ．﹣3ab 2和b 2a 是同类项B ．2π不是单项式C ．a 比﹣a 大D ．2是方程2x+1＝4的解9．青藏高原是世界上海拔最高的高原，它的面积约为2 500 000平方千米．将2 500 000用科学记数法表示应为（ ） A ．62510⨯ B ．62.510⨯ C ．72.510⨯ D ．70.2510⨯10．一个正方体的体积扩大为原来的27倍，则它的棱长变为原来的（ ）倍．A ．2B ．3C ．4D ．5二、填空题(本大题共有6小题，每小题3分，共18分)11．下列式子2125,,5,,8,32,3237a b s ab m y n +=++=<中，代数式有__________个． 12．某工厂的产值连续增长，去年是前年的1.5倍，今年是去年的2倍，这三年的总产值为550万元，则前年的产值是________万元13．一艘轮船从甲码头到乙码头顺流行驶用 3 小时，从乙码头到甲码头逆流行驶用 4 小时，已知 轮船在静水中的速度为 30 千米/时，求水流的速度，若设水流的速度为x 千米/时，则可列一元一 次方程为_______． 14．将()22a a b --化为只含有正整数指数幂的形式为__________．15．一条直线上顺次有A 、C 、B 三点，线段AB 的中点为P ，线段BC 的中点为Q ，若AB ＝10cm ，BC ＝6cm ，则线段PQ 的长为_____cm ． 16．若22|2|03a b ⎛⎫-+-= ⎪⎝⎭，则a b -=______. 三、解下列各题(本大题共8小题，共72分)17．（8分）足球比赛的规则为：胜场得3分，平场得1分，负一场得0分，一支球队在某个赛季共需比赛14场，现已经赛了8场，输了一场，得17分，请问：（1）前8场比赛中胜了几场？（2）这支球队打满14场后最高得多少分？（3）若打14场得分不低于29分，则在后6场比赛中这个球队至少胜几场？18．（8分）某人为了解他所在地区的旅游情况，收集了该地区2014年到2017年每年旅游收入的有关数据，整理并绘制成折线统计图，根据图中信息，回答下列问题：(1)该地区2014年到2017年四年的年旅游平均收入是多少亿元；(2)从折线统计图中你能获得哪些信息？19．（8分）作图题：如图，已知点A，点B，直线l及l上一点M．；（1）连接MA，并在直线l上作出一点N，使得点N在点M的左边，且满足MN MA（2）请在直线l上确定一点O，使点O到点A与点O到点B的距离之和最短，并说出画图的依据．20．（8分）如图，数轴上有A，B两点，AB＝18，原点O是线段AB上的一点，OA＝2OB．(1)求出A，B两点所表示的数；(2)若点C是线段AO上一点，且满足AC＝CO+CB，求C点所表示的数；(3)若点E以3个单位长度/秒的速度从点A沿数轴向点B方向匀速运动，同时点F以1个单位长度/秒的速度从点B沿数轴向右匀速运动，并设运动时间为t秒，问t为多少时，E、F两点重合．并求出此时数轴上所表示的数．21．（8分）用白铁皮做罐头盒，每张铁片可制盒身16 个或制盒底43 个，一个盒身与两个盒底配成一套罐头盒，现有150 张白铁皮，用多少张制盒身，多少张制盒底，可以正好制成整套罐头盒？22．（10分）将网格中相邻的两个数分别加上同一个数，称为一步变换.比如，我们可以用三步变换将网格1变成网格2，变换过程如图：（1）用两步变换将网格3变成网格4，请在网格中填写第一步变换后的结果；（2）若网格5经过三步变换可以变成网格6，求x 的值（不用填写网格）；（3）若网格7经过若干步变换可以变成网格8，请直接写出a 、b 之间满足的关系．23．（10分）已知ACB △和ECD 都是等腰直角三角形,90ACB ECD ∠=∠=︒．(1)若D 为ACB △内部一点,如图,AE BD =吗?说明理由．(2)若D 为AB 边上一点,5AD =,12BD = ,求DE 的长．24．（12分）如图，数轴上的三点A 、B 、C 分别表示有理数a 、b 、c ，且|a|＞|c|＞|b|．（1）化简|a+c|﹣2|c ﹣b|；（2）若b 的倒数是它本身，且AB ：BO ：OC ＝6：2：3，求（1）中代数式的值．参考答案一、选择题(每小题3分,共30分)1、C【分析】设用x 张铝片制作瓶身，则用()100x -张铝片制作瓶底，可作瓶身16x 个，瓶底()45100x -个，再根据一个瓶身和两个瓶底可配成一套，即可列出方程.【详解】设用x 张铝片制作瓶身，则用()100x -张铝片制作瓶底，依题意可列方程()21645100x x ⨯=-故选C.【点睛】此题主要考查一元一次方程的应用，解题的关键是根据题意找到等量关系.2、B【解析】试题解析：0m =时，a b =不一定成立.故错误.故选B.3、C【分析】就用电冰箱冷藏室的温度4℃减去比冷藏室低的温度22℃的结果就是冷冻室的温度．【详解】解：由题意，得4-22=-18℃．故答案为：C．【点睛】本题是一道有理数的减法计算题，考查了有理数减法的意义和有理数减法的法则．4、D【解析】试题分析：首先要理解清楚题意，知道总的客车数量及总的人数不变，然后采用排除法进行分析从而得到正确答案．解：根据总人数列方程，应是40m+10=43m+1，①错误，④正确；根据客车数列方程，应该为，②错误，③正确；所以正确的是③④．故选D．考点：由实际问题抽象出一元一次方程．5、C【分析】科学记数法的表示形式为a×10n的形式，其中1≤|a|＜10，n为整数．确定n的值时，要看把原数变成a时，小数点移动了多少位，n的绝对值与小数点移动的位数相同．当原数绝对值＞1时，n是正数；当原数的绝对值＜1时，n是负数．【详解】2748000=2.748×106，故选：C．【点睛】本题考查科学计数法的表示方法，科学记数法的表示形式为a×10n的形式，其中1≤|a|＜10，n为整数；正确确定a和n 的值是解题关键．6、D【分析】根据代数式的书写规范逐项排查即可．【详解】解：A、不符合书写要求，应为4ab，故此选项不符合题意；B、不符合书写要求，应为133x，故此选项不符合题意；C、不符合书写要求，应为xy，故此选项不符合题意；D、52a符合书写要求，故此选项符合题意．故选：D．【点睛】本题考查了代数式的书写规范，书写代数式要关注以下几点：①在代数式中出现的乘号，通常简写成“·”或者省略不写；②数字与字母相乘时，数字要写在字母的前面；③在代数式中出现的除法运算，一般按照分数的写法来写、带分数也要写成假分数．7、B【分析】根据正方体表面展开图的特征进行判断即可．【详解】解：由正方体的表面展开图的“相间、Z 端是对面”可得，“y”与“3”相对，“x”与“1”相对，∴xy=3，故选：B ．【点睛】本题考查正方体的展开与折叠，掌握正方体表面展开图的特征是正确判断的前提．8、A【解析】选项A. 23ab -和2b a 是同类项，正确.选项 B. π2是单项式.错误. 选项C.因为a =0, a =a -.错误.选项 D. 2代入方程22154⨯+=≠.错误.故选A.9、B【分析】由题意根据把一个大于10的数写成科学记数法a ×10n 的形式时，将小数点放到左边第一个不为0的数位后作为a ，把整数位数减1作为n ，从而确定它的科学记数法形式．【详解】解：2 500 000=62.510⨯平方千米．故选：B ．【点睛】本题考查科学记数法，注意掌握将一个绝对值较大的数写成科学记数法a ×10n 的形式时，其中1≤|a|＜10，n 为比整数位数少1的数．10、B【分析】根据正方体的体积公式解答．【详解】解：设原来正方体的棱长为a ，则原来正方体的体积为3a ，由题意可得现在正方体的体积为327a ，3a =，∴现在正方体的棱长为3a ，故选：B ．【点睛】本题考查立方根的应用，熟练掌握立方根的意义及正方体的体积计算方法是解题关键．二、填空题(本大题共有6小题，每小题3分，共18分)11、4【分析】根据代数式的定义：由数和表示数的字母经有限次加、减、乘、除、乘方和开方等代数运算所得的式子，或含有字母的数学表达式称为代数式，单独的一个数或字母也是属于代数式，进行判断即可得解. 【详解】2,5,,83a b m y ++属于代数式， 故答案为：4.【点睛】本题主要考查了代数式的概念，熟练掌握代数式的区分方法是解决本题的关键.12、1【分析】设前年的产值是x 万元，根据题意可得去年的产值是1.5x 万元，今年的产值是1.523x x ⨯=万元，再根据这三年的总产值为550万元，列出方程求解即可．【详解】解：设前年的产值是x 万元，由题意得1.5 1.52550x x x ++⨯=，解得：100x =．故答案为：1．【点睛】此题考查了一元一次方程的应用，解题关键是要读懂题目的意思，根据题目给出的条件，找出等量关系列出方程解决问题．13、3(30)4(30)x x +=-【分析】设水流的速度为x 千米/时，则顺流行驶的速度为（x+30）千米/时，逆流行驶的速度为（30-x ）千米/时，根据路程=速度×时间结合甲码头到乙码头的路程不变，即可得出关于x 的一元一次方程，此题得解．【详解】设水流的速度为x 千米/时，则顺流行驶的速度为（x+30）千米/时，逆流行驶的速度为（30-x ）千米/时， 依题意，得：3（30+x ）=4（30-x ）．故答案为：3（30+x ）=4（30-x ）．【点睛】本题考查了由实际问题抽象出一元一次方程，找准等量关系，正确列出一元一次方程是解题的关键．14、()22a a b -【分析】根据负整数指数幂的意义转化为分式的乘法解答即可．【详解】()22a a b --=()221a a b ⨯-=()22a a b -．故答案为：()22a a b -．【点睛】 本题考查了负整数指数幂的运算，任何不等于0的数的-p （p 是正整数）次幂，等于这个数的p 次幂的倒数．15、1．【分析】由线段的中点的定义得出PB ＝12AB=5cm ，BQ=12BC=3cm ，PQ=PB-BQ ，即可求出结果. 【详解】解：如图所示：∵线段AB 的中点为P ，线段BC 的中点为Q ，AB ＝10cm ，BC ＝6cm ，∴PB ＝12AB ＝5cm ，BQ ＝12BC ＝3cm ， ∴PQ ＝PB ﹣BQ ＝1cm ；故答案为：1．【点睛】本题考查了两点间的距离，线段中点的知识，熟练掌握线段中点的定义是解决本题的关键.线段上的一点把线段分成相等的两部分，这个点叫做线段的中点.16、-49【分析】根据绝对值和平方的非负数性质可求出a 、b 的值，即可得答案.【详解】∵22|2|03a b ⎛⎫-+-= ⎪⎝⎭， ∴a-2=0，23-b=0， 解得：a=2，b=23， ∴a b -=-(23)2=49-，故答案为：4 9【点睛】本题考查了绝对值和平方的非负数性质，两个非负数的和为0，则这两个非负数分别为0.熟练掌握非负数的性质是解题关键.三、解下列各题(本大题共8小题，共72分)17、（1）前8场比赛中胜了1场；（2）这支球队打满14场后最高得31分；（3）在后6场比赛中这个球队至少胜3场．【分析】（1）设这个球队胜x场，则平（8﹣1﹣x）场，根据题意可得等量关系：胜场得分+平场得分＝17分，根据等量关系列出方程，再解即可；（2）由题意得：前8场得17分，后6场全部胜，求和即可；（3）根据题意可列出不等式进行分组讨论可解答．由已知比赛8场得分17分，可知后6场比赛得分不低于12分就可以，所以胜场≥4一定可以达标，而如果胜场是3场，平场是3场，得分3×3+3×1＝12刚好也行，因此在以后的比赛中至少要胜3场．【详解】（1）设这个球队胜x场，则平（8﹣1﹣x）场，依题意可得3x+（8﹣1﹣x）＝17，解得x＝1．答：这支球队共胜了1场；（2）打满14场最高得分17+（14﹣8）×3＝31（分）．答：最高能得31分；（3）由题意可知，在以后的6场比赛中，只要得分不低于12分即可，所以胜场不少于4场，一定可达到预定目标．而胜3场，平3场，正好也达到预定目标．因此在以后的比赛中至少要胜3场．答：至少胜3场．【点睛】本题考查了一元一次方程的应用、逻辑分析．根据题意准确的列出方程和不等关系，通过分析即可求解，要把所有的情况都考虑进去是解题的关键．18、(1)年旅游平均收入55亿元；(2)见解析.【分析】（1）从折线统计图中得到四年的年旅游平均收入，然后计算它们的算术平方数即可；（2）可从每年的增长量求解．【详解】(1)年旅游平均收入:20+40+60+100=554亿元(2)从折线统计图可得到：①该地区从2014年到2017年，每年的年旅游收入逐年增加；②2014年到2015年与2015年到2016年的年旅游收入增长量相等；③2016年到2017年的年旅游收入增长速度最快【点睛】本题考查了折线统计图：折线图是用一个单位表示一定的数量，根据数量的多少描出各点，然后把各点用线段依次连接起来．以折线的上升或下降来表示统计数量增减变化．特点：折线图不但可以表示出数量的多少，而且能够清楚地表示出数量的增减变化情况．19、（1）见详解；（2）见详解，依据：两点之间，线段最短..【分析】（1）以点M为圆心，MA为半径画弧交直线l于一点，即为点N；（2）依据两点之间线段最短，连接AB，交直线l于一点，即为点O，此时点O到点A与点O到点B的距离之和最短. 【详解】解：（1）如图，点N即为所求.（2）如图，点O即为所求.依据：两点之间，线段最短.【点睛】本题考查了直线、线段、射线，熟练掌握线段的相关性质是准确作图的关键.20、(1)A，B两点所表示的数分别是﹣12，6；(2)C点所表示的数是﹣2；(3)t＝9时，E、F两点重合，数轴上所表示的数为1.【解析】(1)由OA＝2OB，OA+OB＝18即可求出OA、OB；(2)设OC＝x，则AC＝12﹣x，BC＝6+x，根据AC＝CO+CB列出方程即可解决；(3)由点E运动路程＝18+点F运动路程，可列方程，可求t的值．【详解】解：(1)∵OA+OB＝AB＝18，且OA＝2OB∴OB＝6，OA＝12，∴A，B两点所表示的数分别是﹣12，6；(2)设OC＝x，则AC＝12﹣x，BC＝6+x，∵AC＝CO+CB，∴12﹣x＝x+6+x，∴x＝2，∴OC＝2，∴C点所表示的数是﹣2；(3)根据题意得：3t＝18+t，∴t＝9∴当t＝9时，E、F两点重合，此时数轴上所表示的数为OB+9＝6+9＝1．【点睛】考查一元一次方程的应用，实数与数轴以及数轴上两点之间距离公式的运用，找等量关系列出方程是解决问题的关键，属于中考常考题型．21、用86张制盒身，64张制盒底【分析】设用x张制盒身，则（150-x）张制盒底，根据题意可知题目中的等量关系：制盒身铁皮的张数×每张铁皮可制盒身的个数×2=制盒底铁皮的张数×每张铁皮可制盒底的个数，据此解答．【详解】解：设用x张制盒身，则（150-x）张制盒底，根据题意得：16x×2=43（150-x），解得x=86，所以150-x=150-86=64（张），答：用86张制盒身，则64张制盒底．【点睛】本题考查了一元一次方程的应用，解答本题的关键是读懂题意，设出未知数，找出合适的等量关系，列方程．22、（1）第一行：1，-6；第二行：1，-5；（2）23x ；（3）2a+3b=1．【分析】（1）根据第一步第一行减2，第二步第二列加6即可得解；（2）根据第一步第二列上的数都减去2x，第二步第一列上的数都加2，第三步第一行上的数都减去（1-2x）可得方程（x+1）-(1-2x)=2，解方程即可得解；（3）根据第一步第二列上的数都减去a，第二步第一列上的数都减去(1-3b)，第三步第一行上的数都减去（b-2-a）可得等式，整理后可得解．【详解】解：（1）第一步：第一行减去2，得第二步第二列加6，得（2）第一步第二列上的数都减去2x，得：第二步第一列上的数都加2，得 :第三步第一行上的数都减去（1-2x），得：∴（x+1）-(1-2x)=2，解得，23x ；（3）第一步第二列上的数都减去a，得：第二步第一列上的数都减去(1-3b)，第三步第一行上的数都减去（b-2-a）∴a+b-(1-3b)-( b-2-a)=1整理得：2a+3b=1．【点睛】此题主要考查了数字的变化规律，整式的加减以及解一元一次方程，读懂题意，弄清数字之间的关系是解答此题的关键．23、（1）AE BD =，理由详见解；（2）13【分析】（1）通过证明ACE BCD ∆≅∆即可得解；（2）通过勾股定理进行计算即可得解．【详解】（1）AE BD =，证明：∵ACB ∆和ECD ∆都是等腰直角三角形，∴AC BC EC DC ==，，∵90ACB ECD ∠=∠=︒，∴ACB DCA DCE DCA ∠-∠=∠-∠，∴ACE BCD ∠=∠在ACB ∆和ECD ∆中AC BC ACE BCD EC DC =⎧⎪∠=∠⎨⎪=⎩，∴()ACE BCD SAS ∆≅∆，∴AE BD =；（2）如下图所示，∵ACB ∆和ECD ∆都是等腰直角三角形，ACE BCD ∆≅∆，45EAC B ∴∠=∠=︒，45BAC ∠=︒，BD AE =，90EADEAC BAC ∴∠=∠+∠=︒，∴EAD ∆是直角三角形，∵5AD =，12BD =，∴13DE =．【点睛】本题主要考查了三角形全等的判定，等腰直角三角形的性质，勾股定理等相关内容，熟练掌握三角形全等的判定及勾股定理的计算是解决本题的关键．24、（1）﹣a﹣3c+2b；（2）-2.1【分析】（1）由已知可得|a+c|﹣2|c﹣b|＝﹣a﹣c﹣2（c﹣b）化简即可；（2）由倒数的性质可得b＝﹣1，再由已知可得a＝﹣4，c＝1.1，代入（1）的式子即可．【详解】解：（1）∵|a|＞|c|＞|b|，∴|a+c|﹣2|c﹣b|＝﹣a﹣c﹣2（c﹣b）＝﹣a﹣c﹣2c+2b＝﹣a﹣3c+2b；（2）∵b的倒数是它本身，∴b＝﹣1，∵AB：BO：OC＝6：2：3，∴（b﹣a）：（﹣b）：c＝6：2：3，∴（﹣1﹣a）：1：c＝6：2：3，∴a＝﹣4，c＝1.1，∴﹣a﹣3c+2b＝4﹣4.1﹣2＝﹣2.1．【点睛】本题考查代数值求值；熟练掌握绝对值的性质，数轴上数的特点解题是关键．。
人教版七年级上册英语期末复习题七年级上册英语复习题短语部分StarterUnit1–Unit3Unit41.underthetable在桌子下2ontheofa在沙发上3.inthebackpack在背包里4.mathbook数学书5.alarmclock闹钟6.videotape录像带7.taketo把拿(去)给8.bringto把带(来)给9.onthefloor在地板上Unit51.occerball足球2.tenniracket网球拍3ping-pongball乒乓球=tabletenni4.ping-pongbat乒乓球拍5.playbaketball打篮球6.playping-pong打乒乓球=playtabletenni7.playvolleyball打排球8.playoccer踢足球=playfootball9.playbaeball打棒球10.playtenni打网球11.port 看一看，瞧一瞧10.T-hirtinred红色T恤衫11.buyfrom从买Unit81.Happybirthday.生日快乐。
2.dateofbirth出生日期=birthday3.howold几岁，多大年纪4.peechcontet演讲比赛5.chooltrip郊游,校游6.baketball/volleyballgame篮球(排球)赛7.birthdayparty生日聚会8.SchoolDay学校庆祝日9.ArtFetival艺术节10.ChineeContet语文比赛11.MuicFetival音乐节12.EnglihParty英语晚会13.year()old岁（年龄）Unit91.wanttodoth.想要做某事2.gotoamovie去看电影3.Chineehitory中国历史4.eeado（one'）homework做作业12.gohome回家13.allnight整夜14.lovetodoth.热爱做某事15.Betwihe.祝你好运16.takeabu(to)乘公共汽车(到去)17.takeahower淋浴，洗澡=haveahower18.inthemorning/afternoon/evening在上午（下午、晚上）19.tellb.aboutb./th.告诉某人有关某人（某事）的情况20.eatbreakfat/lunch/dinner吃早饭（午饭、晚饭）=havebreakfat/lunch/dinnerUnit121.favoriteubject最喜欢的学科how电视节目3.havemath上数学课4.onMonday在星期5.aftercla课后6.playwith和玩耍7.afterchool放学后8.thiafternoon今天下午9.cience/Chineeteacher科学(语文)老师7.Hedoehomework(否定句)Hedoen’t（助动词）do（行为动词）homework8.Let’+V-原:Doyoulike_____(draw)Let’_____(go)totheartclub.9.helpb.(to)do th.=helpb.withth.帮助某人做某事10.HeihelpingTom____(learn)Englih.11.在时刻前用at，在星期几前用on，在年/月/早上/下午/晚上前用in,日前用on在早晨用in，在具体某一天的早晨用on:onthemorningofJuly2nd12.带来用bring…to，带走用take…to13.回答赞美的句子用Thankyou!14.十二个月用twelvemonth15.穿什么颜色的衣服用in+颜色16.乐器前要加the:playtheviolin17.play+体育运动18.某一餐吃什么用for+三餐之一eat/have/like…for+某一餐19.问价格用Howmuchi/are…问数量用Howmuch+不可数名词+…Howmany+可数名词Becaue24.问颜色用Whatcolor,回答用It’/They’re+颜色25.问生日用WheniA’birthday回答时用月份+日期（序数词）如：November(the)ninth26.在墙上用onthewall27.alo用在句中，too用在句末28序数词前一定要加the29.anapple/aredapple30.表共同拥有用AandB’，表各自所有用A’andB’31.Helikeredbet（最喜欢）.=Hifavoritecolorired32.lookat=havealookat33.analarmclock34. Y副词修饰动词形容词修饰名词)35.我和某人用…andI,表复数，be动词用are36.thefifthmonth/dayoftheyear/week37.home前不能用to：go/get/athome38.parent=fatherandmother;parent=fatherormother39.表顺接用and，表转折用but40.名词前用形容词性物主代词:herfriend41.可数名词用they/them代替，不可数名词用it代替42.以am/i/are/do/doe/can 开头的句子是一般问句，回答时用Ye/No,+主语（代词）+句首单词（Areyou-----？Iam）43.我们用各种颜色的短裤：Wehavepantinallcolor44.favorite/birthday前一定要加物主代词：myfavoriteubject/hibirthday45aftercla(正确),afterthecla(错误)46打两小时的篮球：playbaketballfortwohour47.alotof=lotof用于可数/不可数前48.many=lotof=alotof(后接可数名称复数)49.much=lotof=alotof(后接不可数名词)50people永远表复数;Chinee,Japanee单复数一致:manypeople/Chinee/Japanee51.ome/any+可数名词复数/不可数名词ome用于肯定句，any用于否定句和疑问句52.数词（1除外）后名词要用复数:threetomatoe53.介词后动词用ing,代词用宾格:Thankforhelpingme/Writealettertothem54.ome+food/orange/alad等不可数名词表单数，be动词用i55.Teacher’Day（教师节）56.likereadingandplayingport57.canjoin=canbein58.Howoldihe=What’herage59.你妈妈最喜欢的颜色：yourmother’favoritecolor60.T-hirtingreenandblack（绿黑相间的T恤衫）61.onSaturdayafternoon（在周六下午）62.takehimtowork63.gohomewithJim64.peak(+alittle)+语言65.想成为：wanttobe66.learnaboutart67.几十几的数词要加-：twenty-two68.Let’gotothetore69.哪种颜色：whatkindofcolor70.anArtFetival71.bebuywith/doing72.16岁：i某teenyearold或i某teen73.aphotoofherfamily=herfamilyphoto74.betrictwith75.你听什么？Whatdoyouliten____76.他姓什么？Whati________77.我不做家庭作业：I_______myhomework78.他周末做什么？What___he______weekend词汇部分（填空题）一：名词（可数名词，不可数名词，名词所有格---见课本94至95页）1.Iwantome(apple)and(chicken)forlunch.6.What’7.The8.二：冠词(用冠词a,an,the填空，不需填用“∕”表示)1.Inuniveryred.2.Ilikeplayingche,butJacklikeplayingpiano.3.Thereiu”and“”intheword“ee”.4.Look!Thereioldmaponwall(墙壁).5.Thiipear.It’notoran ge.6.Wehavebaketballifortyyuan.三：代词（形容词性物主代词,人称代词的主格和宾格，指示代词---见课本95至96页）1.---Where’(my/I)(It/It)iontheofa.2．(Thee/Thi)aremycouin.Ilove．help(he/him)withhitory.4.---I(it/he)in’t.5.Canyougotochoolwith四：数词（基数词和序数词）1.Tomibirthday.(fourteen/fourteenth)2.Januaryithemonthofthey ear.（one/firt）WehaveapeechcontetonMay—econd/twenty—econd).1.Thiimyuncle.Weoftenviit______(he).2.______(We)mathteach eriverykindtou.3.Whatdayi_____(it)today4.Mycoatiblue.Theredonedoen’tbelongto______(I).5.Theenewhoe areonice.Ilike_____(they)verymuch.6.Hey,boy!Didyouhandin_____(yo u)homeworkyeterday7.Mycouinialovelygirl.SoIlove_____(he)verymuch .8.Let’akJane._____(he)iveryclever.9.Tomlot_____(he)keyontheway tochool.10.Ourchooluniformaremorebeautifulthan_____(they).11.Hello,S andy.Whatare_____(you)doingnow12.Themonkeyiputtingtheappleinto__ ___(it)mouth.13.ThidictionaryinotGina’.______(he)ionherdek.14.W hereimyEnglihbook_______(I)can’tfindit.15._____(I)bagionthedek.16.TheirChineeteacheriawomanand_____(we)iaman.17.MynameiAnn. What’_____(you)18.______(We)claroomibrighterthan______(they).（选择it,thi,that,thee,thoe,one填空）1.Hello,Tim.Letmeintroducemynewfriendtoyou.________iMikeand_ ______iJack.2.Idon’tlikethibicycle._____oneoverthereibetter.3.S omeoneiknockingatthedoor.Whocan_______be4.Theteacherpunihedthe boyandaidtohim,“Don’tdo_______again.”5.Look!_______arethebookheboughtyeterday.6._________tudentarem oreactivethan_______.7.Ipreferthepinkchoolbag,the_____withaMickeyMoueonit.五：连词(用and,or,but,becaue,o填空,可重复使用）1.Theycaning贫穷)，heiveryhappy.3.---Canyouwimpaint---Icanwim.4.Ihaveapenapencil,Idon’thavearuleraneraer.5.Tomlikeactionthey’reintereting.6.Iamill(生病)，Idon’tgotochooltoday.六：介词(用at,in,on,for,before,after,of,to,under填空,可重复使用）1.Wegohomefiveo’clocktheafternoon.2.TheyhavemuicMonday.2.Ou rchooldayiAugutthird.3.Weellweaterred,whiteandgreen$16.4.Frankofteneathamburger5.---Aremyockonthebed---No,theyarethebed.5.Thiiapicture。
第一册期末复习题I. Word Building (10 points)Directions: Fill in the blanks with the words given below. Change the form where necessary. Write your answers down on the Answer Sheet.do suspect respond imply inspectcomplete excite decide comprehension week1. I turned off all the lights in the apartment so that my bedroom wasdark.2. What is all this about? You are making a fuss about nothing!3. Many people still think that sending US troops to Iran in 1990 was not a wise .4. They did not how difficult the task was when they accepted it.5. The boy started a newsletter in his school.6. His turned out to be all wrong.7. Upon , it was found that the rooms in the new building were smaller than were originally designed.8. If one says, "I'd rather not do business with that man," the is that the man in question is dishonest.9. To do the job well, a sense of is more important than anything else.10. What has been done can not be .参见《大学英语精读第一册》Revision Exercises 1& 2 Word BuildingII. Vocabulary (20 points)Section ADirections: For each of the following blanks, four choices are given. Choose the most appropriate one, and put your answers down on the Answer Sheet.11. Vickie had most probably her for another sort of girl.A. regardedB. viewedC. mistakenD. looked12. It was not a serious accident; the car needs only some repairs.A. majorB. secondaryC. minorD. primary13. Only guests of the hotel enjoy the of using the private beach.A. privilegeB. possibilityC. favorD. advantage14. One of his many faults is that he never anything very long.A. decides onB. sticks toC. goes overD. makes sure15. The power of the people in this town has been decreasing because most young people have left for the big cities.A. shoppingB. purchasingC. enduringD. spending16. If you work hard , you won't have to sit up all night before the exam.A. by yourselfB. at other timesC. willinglyD. with some help17. The school bus was by a thick fog.A. held upB. broken offC. kept upD. put off18. Television keeps us informed about events and the latest developments in science and politics.A. currentB. fashionableC. brand-newD. previous19. "We'll do what we can to get the goods on time," said the manager of the company.A. reachedB. deliveredC. returnedD. come20. Rain does not bring down the temperature.A. certainlyB. undoubtedlyC. necessarilyD. completely参见《大学英语精读第一册》Test Paper 1& 2 Vocabulary Section BSection BDirections: For each of the underlined words or phrases, four choices are given. Choose the one that best explains or defines the underlined part, and put your answers down on the Answer Sheet.21. “You're a liar!” she exclaimed.A. weptB. cried outC. sighedD. insisted22. We need an extra copy of the book for the newcomer.A. a rareB. an additionalC. an unusualD. an excellent23. They occasionally stop by to see us.A. oftenB. seldomC. usuallyD. once in a while24. It is a worthwhile experiment even if it may fail.A. necessaryB. completeC. valuableD. perfect25. The judge suspected the truth of the evidence provided by the witness.A. doubtedB. believedC. guessedD. realized26. She proposes that we have a birthday party for our English teacher.A. suggestsB. intendsC. demandsD. decides27. Betty was nervous whenever she saw her history teacher.A. delightedB. relaxedC. disappointedD. tense28. It is more difficult for the Smiths to save money now because of the high rate of inflation.A. set downB. set aboutC. set upD. set aside29. The police are looking into the mysterious disappearance of a two-year-old girl from her home in Florida.A. finding outB. handlingC. studyingD. investigating30. Chichester endured all kinds of hardships in his solo sailing round the world.A. sufferedB. experiencedC. overcameD. lasted参见《大学英语精读第一册》Test Paper 1& 2 Vocabulary Section CIII. Structure (10 points)Directions: Each of the following sentences is incomplete and is followed by four choices. Choose the one that best completes the sentence, and put your answers down on the Answer Sheet.31. his wealth, he is not happy.A. Except forB. In spite ofC. Because ofD. Besides32. Bob's doctor suggests for a few days.A. that he is restingB. his restingC. him to restD. that he rest33. We moved to the front row we could hear and see better.A. so asB. so thatC. becauseD. such that34. I'll have a cup of coffee and .A. two breadsB. two piece of breadsC. two pieces of breadsD. two pieces of bread35. He ought to have handed in the paper yesterday. That's what he .A. should doB. should be doingC. should have doneD. should36. The girl in the snapshot was smiling sweetly, .A. her long hair flowed in the breezeB. her long hair was flowing in the breezeC. her long hair flow in the breezeD. her long hair flowing in the breeze37. The professor paused as if his students to ask questions on the point he had just made.A. expectingB. to expectC. expectedD. to have expected38. The classroom was almost empty a desk or two.A. besidesB. except forC. exceptD. in addition to39. , you must show your ticket to go into the cinema.A. No matter whoever you areB. Whoever you areC. Whomever you areD. No matter who are you40. Scientists didn't know much about lung cancer .A. before longB. until recentlyC. long beforeD. in the past few years参见《大学英语精读第一册》Test Paper 1& 2 Structure Section AIV. Cloze (10 points)Directions: For each blank in the following passage, there are four choices given below and marked A, B, C and D. Choose the one that is most suitable, and put your answers down on the Answer Sheet.Many people who work in London prefer to live outside it, and go to work every day by train, car or bus, even though 41 they have to get up earlier in the morning and 42 home later in the evening.The houses outside London are 43 . Even a small flat in London without a garden 44 a lot to rent. With 45 money, one can get a little house in the country with a garden of one’s own. 46 , in the country one 47 rest from the noise of the town. 48 one has to get up earlier and spend more time in trains or buses, he can sleep better at night. 49 one likes gardens, he can spend the free time doing some jobs there. Then 50 the flowers and vegetables come out one has the reward.41. A. this means B. which means C. this is because D. it is said42. A. go B. leave C. reach D. stay at43. A. large B. small C. cheaper D. comfortable44. A. takes B. wants C. pays D. costs45. A. their B. more C. the same D. different46. A. Still B. And C. Otherwise D. However47. A. shall B. can C. might D. ought to48. A. But B. Then C. Since D. Even though49. A. As B. If C. Unless D. Even if50. A. he can see B. if C. / D. when《大学英语精读第一册》Test Paper 1& 2ClozeV. Reading Comprehension (30 points)Directions: In this part there are three passages followed by questions, each with four suggested answers. Choose the ONE you think is the best answer, and put your answers down on the Answer Sheet.Passage 1How often one hears children wishing they were grown up, and old people wishing they were young again. Each age has its pleasures and its pains, and the happiest person is the one who enjoys what each age gives him without wasting his time in useless regrets.Youth is a time when there are few tasks to make life difficult. If a child has good parents, he is fed, looked after and loved whatever he may do. It is impossible that he will ever again in his life be given so much without having to do anything in return. In addition, life is always presenting new things to the child—things that have lost their interest for older people because they are too well-known. But a child has his pains: he is not so free to do what he wishes to do; he is continually being told not to do things, or being punished for what he has done wrong.When the young man starts to earn his own living, he can no longer expect others to pay for his food, his clothes, and his room, but has to work if he wants to live comfortably. If he spends most of his time playing about in the way that he used to as a child, he will go hungry. And if he breaks the laws of society as he used to break the laws of his parents, he may go to prison. If, however, he works hard, keeps out of trouble and has good health, he can have the great happiness of building up for himself his own position in society.51. People can experience happiness if they .A. always think of the past and regret itB. value the presentC. are no longer youngD. become old and have much experience52. When people were young, they used to .A. be in charge of many businessesB. have few things to think about and take onC. look after their younger sisters and brothersD. face a lot of difficulties53. The pains of children lie in the fact that .A. no one helps them make right decisionsB. they are often beaten by their parentsC. they can not be accepted and praised by othersD. they are not allowed to do what they like to do54. Children are usually happy because .A. old people lose interest in themB. they are free to do wrongC. they are familiar with everything going on around themD. things are new to them55. Which of the following is NOT needed for a young man to be happy?A. Hard work.B. Being free from troubles.C. Wealth.D. Health.Passage 2The modern sailing ship was developed by a man who never went to sea. He was Prince Henry of Portugal, the younger son of the Portuguese king and an English princess.Prince Henry lived in the fifteenth century. As a boy he became devoted to the sea, and he dedicated himself to improving the design of ships and the methods of sailing them. In 1416, when he was twenty-two, Henry founded a school for mariners, to which he invited everyone who could help him —Jewish astronomers, Italian and Spanish Sailors, and Arab mathematicians and map makers who knew how to use the crude compass of the day and could improve it.Henry's goal was to design and equip vessels that would be capable of making long ocean voyages without having to keep close to the shore. The caravel, which he helped design, carried more sails and was longer and slimmer than any ship then made, yet was tough enough to stand up against gales at sea. He also developed the carrack, which was a slower ship, but one that was capable of carrying more cargo.The world owes credit to Prince Henry for the development of craft that made oceanic exploration possible. He lives in history as Henry the Navigator.56. Henry the Navigator was a member of the royal family of .A. EnglandB. SpainC. ItalyD. Portugal57. Prince Henry started his school for the purpose of .A. helping marinersB. improving ship design and sailing methodsC. studying astronomy and mathematicsD. improving his own skill as a sailor58. The teachers in Prince Henry's school seem to have been .A. members of the royal familyB. astronomers, sailors and map makersC. shipbuildersD. All of the above59. Prince Henry's goal was to design vessels that could .A. make long deep-sea voyagesB. travel faster than those in use at that timeC. explore the coastline of PortugalD. carry larger crews and more cargo than existing ones60. The best title for this selection is .A. The First Modern Sailing VesselsB. The Mariner PrinceC. Prince Henry's Role in the History of ShipbuildingD. The First School for SailorsPassage 3The word horsepower was first used two hundred years ago. James Watt had made the world's first widely used steam engine. He had no way of telling people exactly how powerful it was, for at that time there were no units for measuring power.Watt decided to find out how much work one strong horse could do in one minute. He called that unit one horsepower. With this unit he could measure the work his steam engine could do.He discovered that a horse could lift a 3300-pound weight 10 feet into the air in one minute. His engine could lift a 3300-pound weight 100 feet in one minute.Because his engine did ten times as much work as the horse, Watt called it a ten horsepower engine.61. The selection says that Watt made the first .A. engineB. steam engineC. widely used steam engineD. useful engine62. Watt wanted to find a way to .A. measure the work his engine could doB. tell people how powerful his engine wasC. lift a 3300-pound weightD. Both A and B63. He made up a unit of measurement based on the strength of .A. a manB. ten horsesC. his engineD. a horse64. One horsepower would equal the .A. work a horse could do in a minuteB. weight a horse could liftC. work a horse could do in ten minutesD. weight of one horse65. The best title for this selection is .A. Watt's EngineB. The Origin of the Term HorsepowerC. Units of MeasurementD. It Happened 200 Years Ago《大学英语精读第一册》Test Paper 1& 2Reading Comprehension。
