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Passage Two Questions 26 to 30 are based on the following passage． The electromagnet was invented in England by William Sturgeon，who took an iron rod and bent it into the shape of a horseshoe．This“horseshoe”was coated with varnish and a layer of copper wire was wrapped around it．An electric current was passed through the wire，thus making the rod magnetic．The rod was now，because of magnetic attraction，able to support nine pounds of iron．In the US，a scientist named Joseph Henry improved on Sturgeon’s electromagnet by insulating the copper wine with silk．He was able to wrap many turns of wire around an iron core without danger of short circuits between the turns．His magnet could hold 2,300 pounds．This experiment prompted Henry to try his hand at converting magnetism into electricity．First he coiled some insulat A. His magnet could．hold 2，300 pounds． B. His magnet was more dangerous． C. There were more turns of wire around the iron rod in his magnet． D. His magnet was an improved model． 更多"Passage Two Questions 26 to 30 ar"的相关试题: [单项选择]Passage Two
Questions 36 to 40 are based on the following passage．
Like most people，1 was brought up to look upon life as a process of getting．It was not until in my late thirties that I made this important discovery：giving—away makes life so much more exciting．You need not worry if you lack money．This is how I experimented with giving-away．If an idea for improving the window display of a neighborhood store flashes tome．I step in and make the suggestion to the store-keeper．If an incident occurs，the story of which I think the local Catholic priest could use．I call him up and tell him about it，though I am not a Catholic myself．One discovery I made about giving—away is that it is almost impossible to give away anything in this world without getting something back, though the return often comes in an unexpected form．One Sunday morning the local post office delivered an important special delivery 1etter to my home，though it was addressed to me at my office．1 wrote the postmas
A. the author was brought up to look upon life as a process of getting in the way as most people． B. he liked most people who were brought up that way． C. because most people were brought up that；the author was，too． D. he liked most people as they looked upon life in the same way． [单项选择]Passage Two
Questions 36 to 40 arc based on the following passage．
Natural gas began with the plant and animal life of the earth’s prehistoric seas．Dead organisms settled on the ocean floor and were covered by layers of mud，silt(淤泥)，and the layers of mud，silt，and sand were compressed into solid rock．As millions of years passed，these rock layers bucked shifted．and accumulation of gas and oil were displaced and became trapped beneath masses of nonporous rock．
Primitive man discovered natural gas quite by accident．The temple fires of Baku on the Caspian Sea(里海)were fired by natural gas seeping(渗漏)from rock fissures(裂缝)，and worshipers(礼拜者，崇拜者)of hire journeyed to Baku from ad afar away as India．The mysterious“burning springs”in North America and elsewhere were also evidence of escaping gas，probably ignited by lighting．
The first industrial application of natural gas was made by the Chinese．Gas transported by bamboo pipes was burned to evaporate brine and produc
A. plant life B. animal life C. minerals D. both a and b [单项选择]Passage Two
Questions 30 to 32 based on the passage you have just heard.A. Find out if patients are abused and try to help them. B. Report abusive husbands of their violent actions. C. Treat the patients in the emergency room. D. Relieve the patients of their mental pressures. [单项选择]Passage Two
Questions 30 to 32 are based on the passage you have just heard. A. Laughing for no reason at all. B. Sleeping until waking up naturally. C. Doing exercise with lots’ of people. D. Singing a song for each other. [单项选择]Passage Two
Questions 29 to 31 are based on the passage you have just heard. A. It might increase airport capacity. B. It might lower property values. C. It might lead to effective modification of existing jet engines. D. It might cause more transportation costs to and from airports. 我来回答: 提交
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