7.
A.incapable B.ultimately C.relative D.patent E.university F.popular G.frustrated H.continuous I.equivalence J.proved K.existence |
More than 110 years ago,between March and September 1905,the mailbox of the German scientific journal Annals der Physik received a series of papers that would forever change the laws of physics.
The author was a young man aged 26,Albert Einstein who was working as a clerk at a (31)D office in Switzerland.His career as a physicist was (32)G after his doctoral thesis was turned down.Einstein had to satisfy his scientific passion only in his spare time.Within a few months,however,he wrote four groundbreaking papers.
The first paper described his particle theory of light.All physicists in 1905knew what light was.Whether from the sun or bulb,light was known to be a (33)H wave-just like sound.In the face of this (34)E held knowledge,Einstein proposed that light was not a wave.Instead,it was composed of"a number of energy quanta."This concept that physical systems can behave both as waves (energy) and as particles (matter) would be the seed of one of the two pillars of modern physics:quantum mechanics.Sixteen years later,this theory took Einstein to the peak of science:the Nobel Prize for Physics.
The second paper did not revolutionize the principles of physics.Nor did it earn Einstein another Nobel Prize.However,while proving the (35)K of atoms and molecules in the paper,the great scientist opened a new field in the study of physics:statistical physics.
The next paper was perhaps the most groundbreaking.It presented Einstein's well-known theory of special relativity,(36)F with even common people nowadays.Einstein wrote in this paper that except for the constant speed of light,everything is (37)C,including time,distance and mass.
On November 21,Einstein's last paper that year was published/In the paper,the scientist (38)J the (39)I between energy and matter with the most famous equation in history:E=mc
2.(E stands for energy,m mass,and c the speed of light)
Einstein's four papers that year have (40)B changed our conception of reality:of light,of matter,of time and of space.There is no wonder that scientists later call 1905Einstein's annus mirabilis-his year of mirales.