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试述贯彻落实幼儿匿课程实施活动性原则的注意事项。

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Scattered through the seas of the world are billions of tons of small plants and animals called plankton. Most of these plants and animals are too small for the human eye to see. They drift about lazily with the currents, providing a basic food for many larger animals. Plankton has been described as the equivalent of the grasses that grow on the dry land continents, and the comparison is an appropriate one. In potential food value however, plankton far outweighs that of the land grasses. One scientist has estimated that while grasses of the world produce about 49 billion tons of valuable carbohydrates each year. The sea’s plankton generates more than twice as much. Despite its enormous food potential, little effort was made until recently to farm plankton as we farm grasses on land. Now marine scientists have at last begun to study this possibility, especially as the sea’s resources loom even more important as a means of feeding an expanding world population. No one yet has seriously suggested that “planktonburgers” may soon become popular around the world. As a possible farmed supplementary food source, however, plankton is gaining considerable interest among marine scientists. One type of plankton that seems to have great harvest possibilities is a tiny shrimplike creature called krill. Growing to two or three inches long, krill provide the major food for the giant blue whale, the largest animal ever to inhabit the Earth. Realizing that this whale may grow 100 feet and weigh 150 tons at maturity, it is not surprising that each one devours more than one ton of krill daily. Krill swim about just below the surface in huge schools sometimes miles wide, mainly in the cold Antarctic. Because of their pink color, they often appear as a solid reddish mass when viewed from a ship or from the air. Krill are very high in food value. A pound of these crustaceans contains about 460 calories—about the same as shrimp or lobster, to which they are related. If the krill can feed such huge creatures as whales, many scientists reason, they must certainly be contenders as new food source for humans. 1.Which of the following best portrays the organization of the passage? A.The author presents the advantages and disadvantages of plankton as a food source. B.The author quotes public opinion to support the argument for farming plankton. C.The author classifies the different food sources according to amount of carbohydrate. D.The author makes a general statement about plankton as a food source and then moves to a specific example. 2.According to the passage, why is plankton regarded to be more valuable than land grasses? A.It is easier to cultivate. B.It produces more carbohydrates. C.It does not require soil. D.It is more palatable. 3.Why does the author mention “planktonburgers”? A.To describe the appearance of one type of plankton. B.To illustrate how much plankton a whale consumes. C.To suggest plankton as a possible food sources. D.To compare the food values of beef and plankton. 4.What is mentioned as one conspicuous feature of krill? A.They are the smallest marine animals. B.They are pink in color. C.They are similar in size to lobsters. D.They have grass like bodies. 5.The author mentions all of the following as reasons why plankton could be considered a human food source except that it is ___. A.high in food value. B.in abundant supply in the oceans. C.an appropriate food for other animals. D.free of chemicals and pollutants.
试题分类: 大学英语六级
练习次数:1次
Part II Vocabulary and Structure Directions: In this part there are forty incomplete sentences. Each sentence is followed by four choices. Choose the one that best completes the sentence and then mark your answer on the Answer Sheet. 21. A great many cancers can be cured but only if before they have begun to spread or colonize in other parts of the body. A. properly treat B. properly treating C. being properly treated D. properly treated 22. she is a likeable girl, she is very difficult to work with. A. Since B. However C. As far as D. While 23. All the tourists gave the robber their money. A. frightened B. frightening C. frighten D. frightful 24. her age, she really did a good job in such a short time. A. Giving B. Gives C. Give D. Given 25. The soldier was with neglecting his duty. A. charged B. conducted C. charged D. committed 26. The reason why the car stopped was . A. because the road was not good B. that the road was not good C. due to the bad road D. because of the bad road 27. You’d better hurry, you might be late for class. A. or B. and C. unless D. but 28. , he performed the task with success. A. It was expected B. Which was expected C. As was expected D. That was expected 29. The doctor felt John’s arm to if the bone was broken. A. work out B. find out C. look at D. see out 30. He just my suggestion at the meeting yesterday. A. put away B. shut down C. showed off D. brushed aside 31. The question at the next meeting remain a secret. A. discussed B. to discuss C. to be discussed D. being discussed 32. His laziness his failure in the final exam. A. gave up B. contributed C. resulted in D. distributed 33. The teacher’s to my statement about this poet led me to read widely about poems. A. change B. charge C. challenge D. chance 34. On most of the nights, Jane reading letters from her boyfriend. A. stayed off B. stayed on C. stayed out D. stayed up 35. The first-year students were learning form the army in Miyun, a suburb of Beijing near I lived. A. what B. where C. that D. which 36. Lynda and hundreds of young people like him the post of typist. A. approached B. applied for C. appealed to D. approved of 37. Anybody is entitled to such benefit of age or sex. A. regardless B. whether C. in spite D. in case 38. In this building each apartment could a family of six. A. house B. cover C. make D. include 39. I tried to get out of the business, I found impossible. A. who B. which C. that D. what 40. When he explained it again and again, the student’s patience . A. ran over B. ran on C. ran out D. ran off 41. When her neighbor Grandma Wang became ill, the girl often . A. fitted in B. worked out C. held back D. helped out 42. If you really want to apply for the dangerous job, I won’t , thought I think it’s a crazy idea. A. stood in your way B. stand on the way C. stand in your way D. stand by the way 43. He was trying to read; , the phone kept ringing. A. meanwhile B. then C. later D. afterwards 44. I am out of those people who like a strenuous (费力的) holiday; I believe in . A. took it easy B. taken it easy C. taking it easy D. taking it easily 45. The police matched the finger prints and found they were . A. equivalent B. identical C. similar D. equal 46. Formally, in the United States, many nurses worked as private duty nurses in hospitals. A. other than B. more than C. less than D. rather than 47. If you don’t mind. I do my homework than play cards with you. A. had better B. prefer C. would rather D. would like 48. Their idea was to get us to the strike at once. A. call at B. call off C. call in D. call for 49. My car so I had to come by bus. A. fell down B. broke down C. fell over D. turned away 50. I could tell he was surprised from the on his face. A. appearance B. sight C. expression D. explanation 51. Which is , North America or South America? A. biggest B. the biggest C. more biggest D. bigger 52. You should observe carefully how the audience his speech. A. reach to B. refer to C. react to D. relate to 53. These farmers got a good harvest last year, so they a big sum of money for new farm machines. A. set aside B. set about C. set up D. set back 54. One of my sayings is “where there is a will, there is a way.” A. likely B. favorable C. alike D. favorite 55. All is a continuous supply of fuel oil. A. what is needed B. that is needed C. the thing is needed D. for their needs 56. The high income tax is harmful it may discourage people from trying to earn more. A. in that B. that C. in which D. which 57. A new technique out, the yield increases by 20%. A. having working B. having been worked C. at a loss D. for good 58. The bird flew into the air and was soon . A. out of sight B. in a hurry C. at a loss D. for good 59. It is decided that he for a bus to meet the guests from Beijing. A. call B. calls C. arrange D. arranges 60. I know it’s not important but I can’t help about it. A. to think B. thinking C. and think D. being thought
试题分类: 大学英语六级
练习次数:1次
Without regular supplies of some hormones our capacity to behave would be seriously impaired; without others we would soon die. Tiny amounts of some hormones can modify moods and actions, our inclination to eat or drink, our aggressiveness or submissiveness, and our reproductive and parental behavior. And hormones do more than influence adult behavior; early in life they help to determine the development of bodily form and may even determine an individual’s behavioral capacities. Later in life the changing outputs of some endocrine glands and the body’s changing sensitivity to some hormones are essential aspects of the phenomena of aging. Communication within the body and the consequent integration of behavior were considered the exclusive province of the nervous system up to the beginning of the present century. The emergence of endocrinology as a separate discipline can probably be traced to the experiments of Bayliss and Starling on the hormone secretion. This substance is secreted from cells in the intestinal walls when food enters the stomach; it travels through the bloodstream and stimulates the pancreas to liberate pancreatic juice, which aids in digestion. By showing that special cells secret chemical agents that are conveyed by the bloodstream and regulate distant target organs or tissues. Bayliss and starling demonstrated that chemical integration could occur without participation of the nervous system. The term “hormone” was first used with reference to secretion. Starling derived the term from the Greek hormone, meaning “to excite or set in motion. The term “endocrine” was introduced shortly thereafter “Endocrine” is used to refer to glands that secret products into the bloodstream. The term “endocrine” contrasts with “exocrine”, which is applied to glands that secret their products though ducts to the site of action. Examples of exocrine glands are the tear glands, the sweat glands, and the pancreas, which secrets pancreatic juice through a duct into the intestine. Exocrine glands are also called duct glands, while endocrine glands are called ductless. 1.What is the author’s main purpose in the passage? A.To explain the specific functions of various hormones. B.To provide general information about hormones. C.To explain how the term “hormone” evolved. D.To report on experiments in endocrinology. 2.The passage supports which of the following conclusions? A.The human body requires large amounts of most hormones. B.Synthetic hormones can replace a person’s natural supply of hormones if necessary. C.The quantity of hormones produced and their effects on the body are related to a person’s age. D.The short child of tall parents very likely had a hormone deficiency early in life. 3.It can be inferred from the passage that before the Bayliss and Starling experiments, most people believed that chemical integration occurred only___. A.during sleep. B.in the endocrine glands. C.under control of the nervous system. D.during strenuous exercise. 4.The word “liberate” could best be replaced by which of the following? A.Emancipate B.Discharge C.Surrender D.Save 5.According to the passage another term for exocrine glands is___. A.duct glands B.endocrine glands C.ductless glands D.intestinal glands.
试题分类: 大学英语六级
练习次数:1次
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某宾馆装修改造项目采用工程量清单计价方式进行招投标,该项目装修合同工期为3 个月,合同总价为 400 万元,合同约定实际完成工程量超过估计工程量15% 以上时调整单价, 调整后的综合单价为原综合单价的 90% 。合同约定客房地面铺地毯工程量为3800m2 ,单价为 140 元/m2; 墙面贴壁纸工程量为7500m2 ,单价为 88 元/m2 。施工过程中发生以下事件; 1.装修进行 2 个月后,发包方以设计变更的形式通知承包方将公共走廊作为增加项目进行装修改造。走廊地面装修标准与客房装修标准相同,工程量为 980m2; 走廊墙面装修为高级乳胶漆, 工程量为 2300m2 ,因工程量清单中无此项目,发包人与承包人依据合同约定协商后确定的乳胶漆的综合单价为l5 元/m2 。 2.由于走廊设计变更等待新图纸造成承包方停工待料5d ,造成窝工 50 工日 (每工日工资 20 元)。 3.施工图纸中浴厕问毛巾环为不锈钢材质,但由发包人编制的工程量清单中无此项目,故承包人投时未进行报价。施工过程中,承包人自行采购了不锈钢毛巾环并进行安装。工程结算时,承包人按毛巾环实际采购价要求发包人进行结算。 问题: 1.因工程量变更,施工合同中综合单价应如何确定? 2.客房及走廊地面、墙面装修的结算工程款应为多少? 3.由于走廊设计变更造成的工期及费用损失,承包人是否应得到补偿? 4.承包人关于毛巾环的结算要求是否合理?为什么 ?
试题分类: 一级建造师
练习次数:2次
Part III Cloze Directions: There are twenty blanks in the following passage. For each blank there are four choices. Choose the one that best fits into the passage and then marks your answer on the Answer Sheet. There are two factors which determine an individual’s intelligence. The first is the sort of brain he is born 61 . Human brains differ considerably, 62 being more capable than others. 63 no matter how good a brain he has to begin with, an individual will have a low order of intelligence 64 he has opportunities to learn. So the second factor is what 65 to the individual—the sort of environment in which he is brought 66 . If an individual is handicapped (受阻碍) 67 , it is likely that his brain will 68 to develop and he will 69 attain the level of intelligence of which he is 70 . The importance of environment in determining an individual’s intelligence can be 71 by the case history of the identical twins, Peter and John. When the twins were three months old, their parents died, and they are placed in 72 foster (寄养) homes. Peter was reared by parents of low intelligence in an 73 community with poor educational 74 . John, 75 , was educated in the home of well-to-do parents who has been to college. This environmental 76 continued until the twins were 77 their late teens, 78 they were given tests to 79 their intelligence. John’s I.Q. (智商) was 125, twenty-five points higher than the 80 and fully forty points higher than his identical brother. 61. A. for B. by C. with D. in 62. A. most B. some C. many D. few 63. A. But B. For C. Still D. And 64. A. if B. thought C. as D. unless 65. A. refers B. applies C. happens D. concerns 66. A. about B. up C. forward D. forth 67. A. relatively B. intelligently C. regularly D. environmentally 68. A. fail B. help C. manage D. stop 69. A. ever B. never C. even D. nearly 70. A. able B. capable C. available D. acceptable 71. A. demonstrated B. denied C. neglected D. ignored 72. A. separate B. similar C. remote D. individual 73. A. omitted B. isolated C. enclosed D. occupied 74. A. possibilities B. opportunities C. capacities D. responsibilities 75. A. moreover B. consequently C. then D. however 76. A. exception B. division C. difference D. alteration 77. A. in B. by C. at C. for 78. A. while B. since C. when D. because 79. A. estimate B. count C. decide D. measure 80. A. average B. common C. usual D. ordinary
试题分类: 大学英语四级
练习次数:0次
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