北京四中11-12学年高二上学期期中测试 英语试卷.doc

1、高考资源网（） 您身边的高考专家北京市四中2011-2012学年高二上学期期中测试数英语试卷（试卷满分为150分，考试时间为120分钟）第I卷 满分100分第一部分：听力测试（共20小题；每小题1分，满分20分）第一节 听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项。听完每段对话后，你将有10秒钟的时间来回答有关小题和阅读下一小题。每段对话你将听一遍。 1. How long can a book be kept in all?A. 2 weeks.B. 4weeks.C. 6 weeks. 2. What was the match like?A. It

2、is too terrible.B. It is full of fun.C. It is successful. 3. What is probably the relationship between the speakers?A. Classmates.B. Teacher and student.C. Father and daughter. 4. Where does this conversation most probably take place?A. In a kitchen.B. In a restaurant.C. In a furniture shop. 5. Why

3、couldnt the man help the woman?A. He thinks the woman can manage it herself.B. His mother didnt ask him to do that.C. He has got an appointment.第二节 听下面4段对话或独白。每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项。听每段对话或独白前，你将有5秒钟的时间阅读各小题。听完后，各小题将给出5秒钟的作答时间。每段对话或独白你将听两遍。听第6段材料，回答第6至7题。 6. What will the boy probably d

4、o this weekend?A. He will probably study for the coming exam.B. He will probably sleep over at a friends home.C. He will probably go to the waterfall. 7. According to the mother, what is the boy forbidden to do?A. to go out.B. to swim.C. to play with his classmates.听第7段材料，回答第8至9题。 8. Where is the wo

5、man rushing to?A. To the office.B. To the bus stop.C. To the police station. 9. What was the woman doing at the bus stop?A. She was reading.B. She was rushing.C. She was chatting.听第8段材料，回答第10至12题。 10. Where are they planning to go in the morning?A. To a park.B. To an art museum.C. To a shopping cent

6、er. 11. Why does the man want to visit the zoo in the afternoon?A. The zoo will be closed the rest of the week.B. The zoo is free to visitors that day only.C. There are unusual animals there. 12. Why does the woman want to go shopping instead?A. She wants to buy souvenirs of their visit.B. She wishe

7、s to visit a shopping center.C. She wants to buy a gift for her friend.听第9段材料，回答第13至15题。 13. Whats Sarahs favorite subject?A. Science.B. Art.C. Computer. 14. What are they mainly talking about?A. Choosing a job.B. Choosing a university.C. Choosing a major. 15. What does Sarah do in her spare time?A.

8、 See movies.B. Create pictures for computer games.C. Build Internet site.第三节 听下面一段对话，根据题目要求在相应题号后的横线上写下第16至第20题的相关信息，每空填一词。听对话前，你有20秒钟的时间读题，听完后你将有60秒的作答时间。这段对话你将听两遍。ProgramGardening with MaryTime（16）_afternoon, starting on March 21-the first day of spring.ContentMary will show you the best way to gr

9、ow（17）_.She has lots of good advice for（18）_!Mary GreenShe has written many（19）_ books on gardening.Her favorite flowers:（20）_第二部分：英语知识运用（共两节，满分50分）第一节 单项填空（共20小题，每小题1分，满分20分）从A、B、C、D四个选项中，选出可以填入空白处的最佳答案。 21. He _the boy who kept making noises in the library and said, “Get out”.A. stared atB. glared

10、 atC. glanced atD. looked at 22. His wife left him, so he usually _his worries _drink.A. drawn; inB. drowned; inC. drawn; withD. drowned; with 23. Although he is old enough to do his own business, he seems to be _on his parents.A. dependableB. dependentC. reliableD. independent 24. Wind power is an

11、ancient source of energy, _we may return in the near future.A. on whichB. by whichC. to whichD. from which 25. _come out of the building, my first thought was to call the fire department.A. On seeing the smokeB. When I saw the smokeC. Having seen the smokeD. As soon as the smoke was seen 26. Last ni

12、ght, I dreamed of there _a beautiful garden in front of my house.A. to beB. isC. beingD. had 27. The minister said, “We are ready for discussions with any legal parties, but well never _with criminals.”A. negotiateB. quarrelC. argueD. consult 28. “Tommy, run! Be quick! The house is on fire!” Mother

13、shouted with _.A. angerB. rudenessC. regretD. panic 29. During the National Day break, residents in Beijing chose to go to the country to relax for there was a travel _ downtown.A. agencyB. boomC. experienceD. plan 30. They are going to find a new approach _these complex problems.A. to solving B. to

14、 solveC. in solvingD. solves 31. When speaking in public, _.A. speech should be understoodB. speech should be easy to understandC. one should make himself understoodD. one should make listeners understand 32. _from his family for over two years, he is now eager to go back home.A. Having been separat

15、edB. Being separatedC. SeparatingD. Having separated 33. Be careful. The bomb could be _by the slightest touch.A. set outB. set offC. set downD. set up 34. Their efforts were in vain, because their plan wasnt _by the Committee.A. distinguishedB. negotiatedC. approved ofD. accused of 35. My God! I ju

16、st missed the train.Thats too bad. You _it if you had hurried.A. could catchB. would catchC. could have caughtD. had caught 36. Last month, in one firm alone, three hundred people were _because of the drop in sales.A. took offB. laid offC. knocked offD. set off 37. _being fun and good exercise, swim

17、ming is a very useful skill for living. A. ExceptB. In addirionC. Rather thanD. Aside from 38. After some time, he finally _the local food.A. got accustomed toB. was accustoming toC. used to D. had access to 39. There was plenty of time, so she _.A. mustnt have hurriedB. neednt hurryC. couldnt have

18、hurriedD. neednt have hurried 40. Would you like some more tea?_, please.A. No moreB. Just a littleC. Ive had enoughD. Yes, I would第二节 完形填空（共20小题；每小题1.5分，满分30分）阅读下面短文，掌握其大意，然后从各题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。My parents ran a small restaurant in Seattle. It was open 24 hours a day, seven days a week

19、, and my first _41_job, when I was six years old, was _42_diners shoes. My father had done it when he was young, so he taught me _43_to do it right, telling me to offer to re-shine the shoes if the customer wasnt _44_.Working in the restaurant was a _45_of great pride because I was also working for

20、the _46_of the whole family. But my father made it clear I had to _47_certain standards to be part of the team. I had to be punctual, hard-working and _48_to the customers.I was _49_paid for my work I did at the restaurant. One day I made the mistake of _50_Dad I thought he should give me $10 a week

21、. He said, “OK, then how about you _51_me for the three meals a day you eat here? And for the times you bring in your buddies for free sodas?” He _52_ I owed him about $40 a week.I remember _53_home to Seattle after being away in the Army for about two years. I had just been _54_ to captain and was

22、full of pride as I walked into my parents restaurant. The _55_thing Dad said was, “How about your cleaning up tonight?” “I cannot _56_this! Im an officer in the US Army! But it didnt matter. As far as Dad was _57_, I was just another member of the team. I _58_the mop. Working for Dad had taught me t

23、hat loyalty _59_a team comes first. It doesnt matter _60_that team is involved in a family restaurant or Operation Desert Storm. 41. A. trueB. realC. naturalD. happy 42. A. cleaningB. clearingC. shiningD. sweeping 43. A. howB. whatC. whenD. where 44. A. happyB. puzzledC. pleasedD. satisfied 45. A. s

24、ourceB. reasonC. causeD. case 46. A. badB. goodC. rightD. wrong 47. A. requireB. haveC. meetD. fit 48. A. goodB. politeC. warmD. cruel 49. A. seldomB. everC. alwaysD. never 50. A. askingB. tellingC. persuadingD. advising 51. A. payingB. spendingC. costingD. taking 52. A. figuredB. wonderedC. workedD

25、. thought 53. A. goingB. returningC. comingD. leaving 54. A. raisedB. risenC. askedD. promoted 55. A. rightB. justC. veryD. first 56. A. understandB. knowC. believeD. expect 57. A. thoughtB. consideredC. hopedD. concerned 58. A. reachedB. reached forC. fetchedD. brought 59. A. forB. inC. toD. of 60.

26、 A. whetherB. asC. untilD. as long as 第三部分：阅读理解（共20小题；每小题1.5分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。AAn intelligence tester among the Kentucky “poor whites” presented the following problem to a boy being tested: “If you went to the store and bought six cents worth of sweets and gave the shop assist

27、ant 10 cents, what change would you receiver?” The boy replied, “I never had 10 cents, and if I had I wouldnt spend it on sweets, and anyhow sweets are what you mother makes.” The intelligence tester tried again, presenting the problem in the following way: “If you had taken 10 cows to pasture for y

28、our father and six of them ran away, how many would you have left to drive home?” The boy replied, “We dont have 10 cows, but if we did and I lost six, I wouldnt dare go home.” 61. They boys answers to the test questions show us _.A. he is good at solving word problemsB. his experience is quite diff

29、erent from the testersC. he has no maths abilityD. his intelligence is far below the average boys 62. Which of the following is the best conclusion for the passage?A. The boy is very silly.B. The living background influenced thy boy.C. Thy boy didnt know the answers to the questions.D. Thy boy didnt

30、 understand the questions. 63. What does the underlined word “pasture” probably mean?A. To feed cows on grassland.B. To raise animals in a city.C. To drive cows to the railway station.D. To sell cows in a market.BLeaving a tip in a restaurant has become a custom in most countries. The word “tip” cam

31、e from the Latin word “Grais”, meaning free. Tips are defined as small gifts of money for service in addition to the payment due.Believe it or not, the practice of tipping has a little interesting history. The custom can be traced back to the Roman era. The Romans were the first civilization to use

32、coins. It is possible that the word “tip” came from the word “stipend”. “Stips” in Latin means gift. A more common belief is tips were first given in the 18th century England. A popular coffee house equipped each table with a coin box. The label of each box read, “To insure promptness.” Dropping a c

33、oin into the box would result in quick service. Also, the first letter of each word is T. I. P.-tip.In America and Europe, it is customary to tip anywhere from 10% to 20%. Taxi drivers, waiters in restaurants, waitresses in lounges, hotel boys, doormen, and disco coat check girls, all expect a littl

34、e something. People working at these jobs usually receive a low basic salary. Tips are quite necessary to supplement their income. Today most people decide the size of tip according to the quality of the service. If the service and food are not satisfactory, a small tip or possibly no tip will be le

35、ft. For excellent food and service most people are quite happy to leave a tip.The world is full of big spenders and people who act like big spenders. Surprisingly, rich people are not “big tippers” unless entertaining guests. It is no use showing off if nobody is there to watch, right? Many throw mo

36、ney around like water to impress a group of friends out for an evening “on the town”. People who usually cannot afford it are the biggest tippers in front of their friends. It is all part of the show to prove a certain level of social success. Nobody wants to look cheap, stingy, or poor in front of

37、their friends. Over-tipping also gives some satisfaction just to see the waiters reaction.For whatever reason, tipping will continue to be practiced in most countries. Tipping does have its place in our modern society. It will also remain a somewhat personal expression of gratitude. 64. What is the

38、meaning of the word “Gratis” according to the passage?A. free of obligationB. free of chargeC. plenty in timeD. free from tax 65. When were tips first given in England?A. In the 17th century.B. In the 18th century.C. In the 19th century.D. In the 20th century. 66. Which of the following statements i

39、s true?A. Most people think that tips originated in England.B. Most people think that tips originated in Rome.C. Today most people decide the “size of tips according to their mood.”D. According to the author, the practice of tipping does not have an interesting history. 67. How do you understand the

40、 sentence “The world is full of big spenders and people who act like big spenders.” in the 4th paragraph?A. All people in the world have a lot of money.B. No one in the world has a lot of money.C. Many people spend a large sum of money every day.D. The number of people who either have a lot of money

41、 or who pretend to be rich is great. 68. Why are people who cannot afford tipping the biggest tippers in front of their friends?A. Because they have a lot of money.B. Because they sympathize with taxi drivers, waiters in restaurants, waitresses in lounges and disco coat check girls, etc.C. Because o

42、f their vanity（虚荣）.D. None of the above.CWhy does cream go bad faster than butter? Some researchers think they have the answer, and it comes down to the structure of the food, not its chemical composition-a finding that could help break away from some chemicals. Cream and butter contain pretty much

43、the same things, so why cream should go bad much faster has been a problem. Both are small globules（小球）of one liquid which spreads throughout another. The difference lies in whats in the globules and whats in the surrounding liquid, says Brocklehurst, who led the research. In cream, fatty globules d

44、rift about in a sea of water. In butter, globules of a watery roads are locked away in a sea of fat. The bacteria （细菌）which make the food go bad prefer to live in the watery areas of the mixture. “This means that in cream, the bacteria are free to grow throughout the mixture,” he says, “when in butt

45、er, the bacteria are locked away in locked places buried deep in the sea of fat. Trapped in this way, those colonies cannot spread and rapidly run out. They also slowly poison themselves with their waste products.” “In butter, you get a self-limiting system which stops the bacteria growing.” says Br

46、ocklehurst. The researchers are already working with food companies eager to see if their products can be made to stand bacterial attack through changes of the foods structure.Brockelehurst believes it will be possible to make something used in salad cream, for instance, more like that in butter. Th

47、e key will be to do this while keeping the salad cream liquid and not turning it into a solid state. 69. The significance（意义）of Brocklehursts rescarch is that _.A. it discovered small globules in both cream and butterB. it suggested a way to keep some foods fresh without using some chemicalsC. it sh

48、owed the secret of how bacteria increase in cream and butterD. it found that cream and butter share the same chemical composition 70. According to Brocklehurst, we can keep cream fresh by _.A. changing its structureB. killing the bacteriaC. reducing its waterD. removing its fat 71. The underlined wo

49、rd “colonies” refers to _.A. tiny globulesB. watery regionsC. the surrounding liquidD. bacteria society 72. Commercial use of the research finding will be possible if salad cream can be made to stand bacterial attack _.A. by changing its chemical compositionB. by turning it into a solid lumpC. while

50、 its liquid form remainsD. while keeping its structure unchangedDWork, for most American and Chinese women aged 55 and under, involves responsibility for a household a child or children, and a job outside the home as well. It all adds up to a busy lift. How is it going for them for us?Demographers h

51、ave observed that life forms a different sort of pyramid for women in China than in the United States. In China, nearly all young mothers are employed outside the home, with their numbers tapering off as women approach old age. The reasons are clean the second income of the woman is an absolute nece

52、ssity for a young family with a child or two. Later on, when the children are grown, the older couple can more easily live on the husbands earnings plus the wifes pension, and fewer middle-aged women continue in employment.The pyramid for American women is the opposite, with fewer young women employ

53、ed, and the number increasing at older ages. any young mothers have found it more efficient to stay home and care for the children themselves, then find employment later when the children are older and more independent. But rising costs of living are requiring more young American women to help suppo

54、rt and have jobs. They enjoy the adult relationships with others at work and feel stimulated by the demands and challenges of being employed. Staying at home with only a child or two, as even American family size is now, can be monotonous and lonely. Furthermore, a womans paycheck can provide her wi

55、th stronger voting power in family matters.But the American working mother often feels troubled by the complexity of her lift. Childcare is unreliable and expensive. Childcare workers have low status, are not well educated and are poorly paid-they are often women unable to get better jobs. Thus the

56、American working mother always has the worry that her child is not being as well cared for as she hopes, and the cost of babysitters or private-enterprise daycare centers can eat up half or more of her salary. Other worries distract her from good performance at her job: What if the babysitter gets s

57、ick? What will her employer think if she has to stay home with a sick child? What if the car, necessary to get the child to the daycare center and herself to and from her job, breaks down? Few people live close enough to their work of childcare center to accomplish this on foot or by bicycle, as in

58、China. 73. What does the phrase “taper off” in the second paragraph mean?A. gradually decreaseB. remain the sameC. slightly changeD. increase slowly 74. Which of the four answers is not the reason for an American young woman to work outside?A. The cost of living is increasing.B. More earning contrib

59、utes to more power in a family.C. Staying at home with child is boring.D. Baby care is unreliable and expensive. 75. What can we learn from the comparisons intentioned above?A. Americans would be shocked to have to work at jobs that kept husband and wife separated for months.B. Chinese men seem to b

60、e performing more in family work than the American man would.C. American women have more varied and complex concern in terms of childcare.D. American women are more concerned with their post. 76. What may come right after the last paragraph of this passage?A. In china, grandparents take care of chil

61、dren.B. On the job, Chinese women seem more confident.C. Certainly it is true that in both countries males are given preference in education, job selection and promotion.D. Our nations could not run without them.ENext time a customer comes to your office, offer him a cup of coffee. And when youre do

62、ing your holiday shopping online, make sure youre holding a large glass of iced tea. The physical sensation（感觉）of warmth encourages emotional warmth, while a cold drink in hand prevents you from making unwise decisions those are the practical lesson being drawn from recent research by psychologist J

63、ohn A. Bargh.Psychologists have known that one persons perception（感知）of anothers “warmth” is a powerful determiner in social relationships. Judging someone to be either “warm” or “cold” is a primary consideration, even trumping evidence that a “cold” person may be more capable. Much of this is roote

64、d in very early childhood experiences, Bargh argues, when babies conceptual sense of the world around them is shaped by physical sensations, particularly warmth and coldness. Classic studies by Harry Harlow, published in 1958, showed mondeys preferred to stay close to a cloth “mother” rather than on

65、e made of wire, even when the wire “mother” carried a food bottle. Harlows work and later studies have led psychologists to stress the need for worm physical contact from caregivers to help young children grow into healthy adults with normal social skills.Feelings of “warmth” and “coldness” in socia

66、l judgments appear to be universal. Although no worldwide study has been done, Bargh says that describing people as “warm” or “cold” is common to many cultures, and studies have found those perceptions influence judgment in dozens of countries.To test the relationship between physical and psychologi

67、cal warmth, Bargh conducted an experiment which involved 41 college students. A research assistant who was unaware of the studys hypotheses（假设）, handed the students either a hot cup of coffee, or a cold drink, to hold while the researcher filled out a short information form. The drink was then hande

68、d back. After that, the students were asked to rate the personality of “Person A” based on a particular description. Those who had briefly held the warm drink regarded Person A as warmer than those who had held the iced drink.“We are grounded in our physical experiences even when we think abstractly

69、.” Says Bargh. 77. According to Paragraph 1, a persons emotion may be affected by _.A. the visitors to his officeB. the psychology lessons he hasC. his physical feeling of coldnessD. the things he has bought online 78. The author mentions Harlows experiment to show that _.A. adults should develop so

70、cial skills B. babies need warm physical contactC. caregivers should be healthy adultsD. monkeys have social relationships 79. In Barghs experiment, the students were asked to _.A. evaluate someones personalityB. write down their hypothesesC. fill out a personal information formD. hold coffee and co

71、ld drink alternatively 80. What would be the best title for the passage?A. Drinking for Better Social RelationshipsB. Experiments of Personality EvaluationC. Developing Better Drinking HabitsD. Physical Sensations and Emotions第II卷 满分50分第一部分：阅读理解（共8小题；每小题2，满分16分）Childhood is happy time, right? Not ne

72、cessarily. Consider these facts.Depression may occur in as many as 1 in 33 children.Once a child has an episode of depression, he or she has a 50% chance of experiencing another episode in the next 5 years.Suicide is the 6th leading cause of death for 5-to-15-year-olds.If your child experiences 5 or

73、 more of these signs or symptoms for at least 2 weeks, he or she may be experiencing depression or another mental illness.Feeling-Does your child demonstrate（展示）：Sadness EmptinessHopelessness GuiltWorthlessnessLack of enjoyment in everyday pleasuresThinking-Is your child havingtrouble:ConcentratingM

74、aking decisionsCompleting schoolworkMaintaining gradesMaintaining friendshipsPhysical problems-Does your childcomplain of:Headaches StomachachesLack of energySleeping problems（too much or too little）Weight or appetite changes（gain or loss）Suicide risk-Does your child talk or think about:SuicideDeath

75、Other morbid（生病）subjectsBehavior problems-Is your child:Irritable Not wanting to go to schoolWanting to be alone most of the time Having difficulty getting along with othersCutting classes or skipping school Dropping out of sports, hobbies or other activitiesDrinking alcohol or using drugsSometimes,

76、 a child who causes problems at school or at home may actually be depressed, according to the American Academy of Child and Adolescent Psychiatry. If you think your child may be depressed, its important to have him or her treated. Discuss your childs problems with his or her doctor. The doctor may s

77、uggest a referral to a childrens psychologist or psychiatrist. 81. This article is particularly written for _.A. parentsB. teachersC. childrenD. psychologists 82. Which statement describes a child who is most likely to have physical problems?A. The child who is always in high mood.B. The child who a

78、lways feels sleepy.C. The child who hated to study.D. The child who cannot concentrate. 83. What should be done when kids are experiencing depression according to the text?A. to stay with them at home.B. to make them take medicine.C. to turn to the doctor for help.D. to report it to their teachers.G

79、七选五根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。I have a friend who lives by a three-word philosophy: Seize the moment. _84_Too many people put off something that brings them joy just because they havent thought about it, dont have it on their schedule, dont know it is coming or too strict to depart f

80、rom their routine.I cant count the times I called my sister and said, “_85_” She would gasp and stammer, “I cant. I have clothes on the line. My hair is dirty. I wish I had known yesterday. I had a late breakfast. It looks like rain.” And my personal favorite response. “Its just Monday.” She died a

81、few years ago. We never did have lunch together. From then on, Ive tried to be a little more flexible._86_The days get shorter, and the list of promise made to ourselves gets longer. One morning, we are awoken, and all having to show for our lives is repetition of “Im going to”, “I plan on” and “som

82、eday, when things are settled down a bit.”When anyone calls my “seize the moment” friend, she is open to adventure and available for trips. She keeps an open mind on new ideas. Her enthusiasm for life is contagious（有感染力的）. _87_My lips have not touched ice cream for 10 years. I love ice cream. The ot

83、her day, I stopped the car and bought a triple-decker. If my car had hit an iceberg on the way home, I would have died happy._88_ Do something you want to do, not something on your SHOULD DO LIST.A. Now go on and have a nice day.B. Just possibly, she may be the wisest woman on this planet.C. Life ha

84、s a way of going faster as we get older.D. So I wont feel sorry because I have changed my attitude to lifeE. How about going to lunch in half an hour?F. She used to promise to do something instead of doing it right away.G. You talk with her for a while, and youre ready to change your attitude to lif

85、e第二部分：书面表达（满分34分）（一）选词填空（共5小题；每小题2分，满分10分）guide, religion, benefit, vocation, receive, commit, flexible 89. Anyone who wants to work in our company should receive _training first. 90. You picked up the _just in time, for I was about to hang up. 91. The following advice is given as the _for the begin

86、ners to help them familiar with the job as soon as possible. 92. He lost the _in his leg muscles and couldnt bend easily after that care accident. 93. The development of alternative power sources will bring a lot of _to the environment.（二）背诵（共7小题；9个空，每空1分，共9分） 94. The plane wasnt too badly damaged,

87、but over the years, the crash was forgotten and the wreck _. 95. By this time, a Lancaster bomber in reasonable condition was _. 96. Imagine their _when they broke open the packing cases and found that the fourth engine was _-still in perfect condition. 97. I crossed the street to _him, but he saw m

88、e and came running towards me. 98. It was no use _that I had not seen him, so I _to him. 99. I had to think of a way of _around all morning. 100. “Then Ill come with you,” he answered, “Theres always plenty to read _!”（三）写作（15分）在生活中有这样一些人，他们从事着最普通的工作，比如清洁工，售票员，门卫等。我们每天都可以见到他们却谈不上熟悉，请你以“A Familiar St

89、ranger”为题，并用具体事例写一篇120150字的短文（包括外貌、性格和职业）。【试题答案】听力 15 CABAC610 CBCAB 1115 CABCA 16. Saturday17. plants18. gardeners19. popular20. roses单选 2125BBBCB2630 CADBA 3135 CABCC3640 BDADB完形 4145 BCADA4650 BCBDB 5155 AABDD5660 CDBCA阅读 6165 BBABB 6670 ADCBA 7175 DCADC7680 ACBAD 8183 ABC8488 BECGA书面表达 89. vocational 90. receiver91. guidance92. flexibility93. benefits 94. remained undisturbed 95. rare and worth rescuing 96. surprise and delight, sweet as honey 97. avoid meeting 98. pretending, waved 99. preventing him from following me 100. in the waiting room- 17 - 版权所有高考资源网