冲刺2014高考完型阅读七选五每日一练--9月3日

37. A. meetings B. shows C. matches D. practices

38. A. cloudy B. wet C. cold D. windy

39. A. suffered B. explained C. planned D. escaped

40. A. write B. break C. read D. report

41. A. noticing B. gathering C. hearing D. analyzing

42. A. talkers B. dreamers C. attackers D. losers

43. A. positive B. familiar C. brief D. convenient

44. A. testing B. improving C. questioning D. affecting

45. A. aim B. taste C. habit D. attitude

46. A. lost B. controlled C. practiced D. continued

47. A. usual B. safe C. secret D. private

48. A. off B. in C. by D. up

49. A. annoyed B. awkward C. scared D. bitter

50. A. ran B. gave C. stood D. rang

51. A. delicate B. extra C. creative D. casual

52. A. chance B. message C. order D. note

53. A. spared B. requested C. prepared D. sent

54. A. actions B. reasons C. words D. promises

55. A. judge B. express C. comfort D. doubt

阅读：

Store shelves are filling up with so-called “green” products promising to benefit the environment. A recent argument shows that it can be as difficult for buyers to confirm such statement as for producers to defend them.

The argument concerns the GreenPlug Electricity Saver. The GreenPlug is supposed to prevent energy waste by electrical equipment whose constant -speed motors operate at less full load---as is especially true of older refrigerators. Research showed that such motors can be made to do the same work with less heat, noise, and power consumption just by lowering the voltage（电压）of the power supply.

John and Wyck Hay, started Green Technologies to apply that finding to home appliances. In the USA, there are more than 140 million refrigerators in use, accounting for an average of 16% of the household electric bill.

Two years of research resulted in the GreenPlug. Connecting between wall socket and refrigerator, the equipment contains a minicomputer that gives a motor full power (120 volts on average) for start-up, then reduces the power to 106 volts.

Older refrigerators are the most overpowered and, thus, save the most energy with a GreenPlug. Refrigerators less than two years old are already energy-saving that a GreenPlug actually makes them waste electricity.

The higher the voltage, the larger the difference a GreenPlug makes. Higher power costs shorten the payback time. The population-weighted national average is 10 cents per kilowatt-hour. But some residents in Washington State pay 1.5 cents. Some in Alaska pay 41.6 cents.

Then come highly individual household differences like the number of children or refrigerator-opening age. All in all, the GreenPlug should save the average consumer $20 a year.

Although the GreenPlug lowered the voltage as it was designed to do, Consumer Reports, an influential magazine, questioned how quickly---if ever---electricity savings due to the plug would repay its cost. People would be better off buying a new, high-efficiency refrigerator, the magazine advised.

Consumer Reports also sai d that the GreenPlug didn?t give a promised 25% savings worth $50 a year. The savings on the oldest model was the best at 8.6%, worth $20 a year.

Green Technologies ordered tests of the GreenPlug on up to 2,800 refrigerators through next year. The company will not put that data in stores. Instead, potential buyers will call to learn how their model of refrigerator performed. Meanwhile, there is little evidence of consumer dissatisfaction. Sales topped 45,000 units last month. The return rate is less than 0.2%.

67. The GreenPlug on store shelves are due mostly to __________.

A. an increased concern about the environment

B. a demand for money-saving technology

C. the high cost of electrical power

D. the shortage of power supply

68. What do we know about the GreenPlug?

A. It is especially designed for old refrigerators

B. It works well with all home appliances

C. It can?t guarantee lower electric bills

D. It doesn?t function with lower voltage

69. In the GreenPlug argument, the magazine Consumer Reports __________.

A. advocates for the GreenPlug

B. suggests Green Technologies never tell the truth

C. doubts the effect of the GreenPlug

D. informs the public of different opinions

70. We can infer from the passage that the author ___________.

A. feels optimistic about the future of GreenPlug.

B. believes the GreenPlug has cheated customers.

C. holds an objective attitude to the issue.

D. encourages further investigation.

七选五：

Lack of sleep "switches off? genes

One week of bad sleep can "switch off” hundreds of genes and raise the risk of a host of illnesses which is linked to higher bodyweights or heart disease, scientists claim．7 1 Getting fewer than six hours' sleep per night can switch off genes in the body according to a new study．

Our bodies depend on genes to produce a constant supply of proteins which are used to replace or repair damaged tissue, but after a week of lacking in sleep some of genes stopped working．72 Scientists from Surrey University divided 26 volunteers into two groups, one of which slept for less than six hours per night for a whole week, and one which slept for ten hours per night．At the end of the week each group was kept awake for 40 hours and donated blood samples, which were studied to examine the effects of their sleep states．73_

Although a week's normal sleep was enough to restore the affected genes to their normal pattern, researchers said that long periods of sleeplessness could lead to serious health problems including heart disease．

74 Prof Colin Smith, one of the authors of the new paper, which was published in the Proceedings of the National Academy of Sciences journal, said: "This is only a week of short time sleeping and it is only five and a half or six hours night, Many people have that amount of sleep for weeks, months and maybe, even years so we have no idea how much worse it might be."

If these processes continue to be disordered, you could see how you are going to get damage of organs, tissues, heart disease, etc. 75

A．Genes in our bodies play a key role in the constant process of self-repair．B．The group of lack of sleeping was found to have changed the function of 711 genes．

C．The other participants were monitored as they slept with their rest disturbed on

some of the nights.

D．The results suggest that shorter sleep provides a more permissive environment only for heart disease．

E．If you are not able to repair cells and tissues that are damaged then you are going to suffer permanent ill health.

F．Studies have also shown the lack of sleep can lead to some other problems, for example limiting our ability to drive a car safely．

G．The findings suggest that long-lasting lack of sleep could prevent the body from fully repairing itself and raise the risk of a host of diseases．