Стр.87 ГДЗ Starlight Баранова 9 класс
Which of these breakthroughs do you think has had the biggest impact on our lives? Why?
Name some other major breakthroughs and why you consider them important.
a) Complete the gaps with words from the list.
Led, discovered, revolutionized; unmanned, launched, orbit; lit up, pioneered, supply; writing, unreadable, came across, work out.
A. In 1928, Alexander Fleming ___ penicillin by chance when he forgot to clean a dish. This ___ medicine and ___ to the development of lifesaving antibiotics.
B. In 1957, Russia ___ Sputnik 1, the first ___ satellite to successfully ___ Earth. In 1961, Vostok 1 completed one orbit around the Earth carrying the 27-year-old Russian cosmonaut Yuri Gagarin.
C. Nikola Tesla ___ the use of Alternating Current (A/C) to send power over huge distances. He paved the way for our modern electricity ___ and is referred to as the man who ___ the world.
D. In 1799, French soldiers ___ a flat stone near Rosetta, Egypt. The Rosetta Stone had ___ in Egyptian hieroglyphics and Greek on it and by comparing the two, experts were able to ___ the meaning of the hieroglyphics, which had been ___ for centuries.
b) Which description is related to: space exploration? Medicine? Archaeology? Technology?
1a)
A: discovered, revolutionised, led
B: launched, unmanned, orbit
C: pioneered, supply, lit up
D: came across, writing, work out, unreadable
1b)
- Space exploration — B
- Medicine — A
- Archaeology — D
- Technology — C
Ответ
1a) A — discovered, revolutionised, led; B — launched, unmanned, orbit; C — pioneered, supply, lit up; D — came across, writing, work out, unreadable.
1b) Space exploration — B; Medicine — A; Archaeology — D; Technology — C.
