6.1 Imagine you are travelling back to 1955. In what ways do you think life was different from now? Write sentences comparing past and present telephones. Search the Internet for further information.aperta
Soluzione suggerita:Telephones had already been invented in 1955, but not everyone had one. Telephones were set at home and could not be used outside as they were wired. Telephones were only used to make calls.
6.2 Imagine you are travelling back to 1955. In what ways do you think life was different from now? Write sentences comparing past and present TVs. Search the Internet for further information.aperta
Soluzione suggerita:TVs already existed but not all people could afford one. People could meet in clubs or bars to watch it; in any case, there were very few programmes.
6.3 Imagine you are travelling back to 1955. In what ways do you think life was different from now? Write sentences comparing past and present household appliances. Search the Internet for further information.aperta
Soluzione suggerita:In 1955 some household appliances, such as the washing machine, the dishwasher, and the hoover had already been invented; however, only few people had them, as they were quite expensive and home electricity plants were not always suitable for their use.
6.4 Imagine you are travelling back to 1955. In what ways do you think life was different from now? Write sentences comparing past and present computers. Search the Internet for further information.aperta
Soluzione suggerita:Personal computers did not exist in 1955, as they were invented in 1977; however, big computers to make complex calculations were already in use and they were mainly employed by scientists for research.
7. Match each of the sentences from the film to the one that has the same meaning.
A gigawatt is a unit for measuring power.You can’t leave.Plutonium is easy to find.It is impossible to forecast the place or the time of its coming.You will return to the time you are from.It is a bit difficult to obtain.I can only rely on you.If it were possible to catch…
What the hell is a gigawatt? →
… plutonium is available in every corner drugstore… →
… it’s a little hard to come by. →
… you’re stuck here. →
… you’re my only hope. →
… you never know when or where it’s ever gonna strike. →
If we could somehow harness… →
… we’re sending you back to the future. →
8. Read the text and complete it with the words given below.
The Challenge of Harnessing the Energy of Lightning Harnessing the energy of lightning for 1. electrical devices or for light has been matter of experiments for centuries. However, it presents significant 2. . The first is 3. : lightning strikes occur randomly, making it difficult to be ready to capture their energy. Moreover, lightning bolts deliver immense power over a very short 4. ; this requires specialised equipment to capture and store the energy without being damaged. Finally, because capturing lightning is extremely dangerous, it requires 5. measures to protect people and equipment. Scientists are currently exploring ways to induce lightning 6. in controlled environments for research purposes: this could potentially lead to a better understanding of lightning and how to harness its energy. Some experiments, for example, have been done using lightning 7. : while protecting buildings, they could potentially be used to direct strikes towards energy-capturing devices. Together with them, drones or other 8. devices could potentially intercept lightning strikes, but this method presents significant engineering difficulties. In conclusion, however fascinating the idea of 9. lightning energy is, it remains highly challenging and largely 10. .