99 с : task 4. change the words in brackets in a way to make them suitable to the context. you get 1 point for every right answer. in the last two centuries we have seen (1.precedent) technical and scientific inventions. they are our modern wonders. 1. medical science. (2.sure) nothing has done more for the comfort and (3.happy) of mankind than the advance of medical knowledge. how many millions of people benefited from the humble aspirin? how many lives has penicillin saved? discovered by alexander fleming who found the (4.grow) of penicillin on a jar of mould left (5.night), penicillin was later mass produced by howard florey. average life (6.expect) in europe has risen (7.drama) over the last hundred years from about 50 years in 1906 to about 75 years today. 2. agriculture. in 1724, j. swift wrote, “whoever makes two blades of grass or two ears of corn grow where only one grew before serves mankind better than the whole race of (8.politics).” the invention of agriculture and animal domestication (9.significance) boosted humanity’s progress. because of agriculture a large number of people could be (10.convenient) and efficiently fed because a large amount of energy could be stored in a small amount of land. as humanity was able to feed itself better, that allowed free time for other (11.benefit) pursuits such as inventing new technology, discovering new laws of nature and inventing better social structures, hierarchies and laws. 3. space travel. only a few years before men were walking on the moon,(12. reputation) scientists declared it was (13.possible). but in 1957 the soviet union launched sputnik, y. gagarin orbited the earth in 1961, and n. armstrong stepped out of his space capsule and made his famous statement: “that’s one small step for a man, one giant leap of (14.man)

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