Summative Assessment for the Unit «STEM>> Task I. Grammar. Write the correct form of the verbs in brackets. Complete the other gaps with even if, unless, or supposing. Global warming 1 eight million people suddenly 2 (fly) from London to New York, imagine how much CO23 (release) into the atmosphere as a result of the burning of so much fossil fuel. Well, statistically, deforestation across the world during the next 24 hours is going to release the same amourit of CO2 that such a mass flight 4_ (produce). everybody 6 5 (stop) using fossil fuels right now, (an extremely unlikely event!), the world 7 (still /continue) to warm up. Global warming is irreversible. That, however, doesn't mean we should do nothing. Indeed, that's exactly why it's so important to raise awareness of the issue, and exactly why we produced a video to show people what the people effects of the continued consumption of fossils fuels really are. 8 like us didn't protest against global warming? Nothing would have changed in the last fifty years. Moreover, people wouldn't be supporting us now 9 they 10 (see) that video. I'm really glad we made it Task II. Vocabulary. Complete the sentences with the correct word(s). Then match of energy with each text. There are two extra types of energy. biofuel excess energy fossil fuel generate geothermal grid hydroelectricity tidal power megawatts renewable source solar power wind power 1 The panels on your roof are connected to a meter, so you can measure how of energy you'll get coal power the moment, stations At national energy supply energy, either through using dams or pumpec 3. Water can be used to storage systems. Task III. Reading. Read the text. Match sentences A-F with gaps 1-5. There is one extra sentence. many 2. most type to the Rosa Parks Some of the most significant protest movements in history have begun with one simple act. Thi Instead, is certainly true of the civil rights movement in the United States in the 1950s. 1 began when a respectable 42-year-old African American woman called Rosa Parks refused give up her seat on a bus. In 1955, the city of Montgomery in Alabama was a segregated place. In schools, libraries an In truth, what this meant was th hospitals, white people and black people didn't mix. 2 African Americans were forced to attend underfunded schools, and go to inferior restaurant Even buses the city were segregated. African Americans were expected to sit in seats at t back. It was a situation which caused a great deal of anger among African Americans w regularly commuted by public transport. On 1 December 1955, when Rosa boarded the bus she generally took on her way home, didn't sit at the front or the back, but in the middle. At a later stop, when a white man board Rosa was asked to move to the back so the new passenger could sit down, but she refus Buses in the city were sudde Before long, Rósa was under arrest for breaking the law. 3 As the c almost empty. For the authorities, this was serious as they were losing money. 4 wore on, however, and publicity spread, it became clear that most Americans supported F and the boycott. For 381 days, African Americans refused to ride on buses in the city. By the of 1956, the protestors had won. The US Supreme Court ruled the segregation unconstitutional and buses were integrated. The story of Rosa Parks is known to all American schoolchildren. You can even visit a mus Over the next decade, protestors challe to see the bus on which Rosa once sat 5 segregation and won. 7. Indeed, racial separation was not just discouraged, but upheld by the 'Jim Crow L aws which maintained that people of different colours were separate, but equal. 3. This was a challenge not to the segregation laws, but to the right of the white elite to make laws as they saw fit. Her simple courage, and the realisation that change could be brought about by pe rotest, was a powerful motivator for later demonstrations. 0. Historians have argued that Rosa's defiance changed the way ordinary America bout segregation. 1. The fight to end racial discrimination against African Americans in America's so ates did not begin with mass demonstrations.​

Task I. Grammar:1. fly2. would be released3. is released4. would produce5. Supposing6. were7. would still continue8. Supposing9. unless10. seeTask II. Vocabulary:1. excess2. hydroelectricity3. storageTask III. Reading:1 - 62 - 03 - 74 - 35 - 5