Unit 20 New Frontiers
Scientists project a transformative shift in global demographics by 2050, foreseeing a decline in European population but substantial growth in developing nations like Africa. The looming threats of global warming, water scarcity, and biodiversity loss paint a concerning picture for the future. Environmental impacts of over three billion cars worldwide by 2050, along with rising carbon dioxide levels from fossil fuel consumption, further compound these challenges. Urgent action is necessary to address these issues and shape a sustainable future for generations to come.
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Presentation Transcript
When scientists scan the global horizonover fishing loss of species habitat water shortage climate change and invasive( )species look to be the biggest threats to the earth.What will our world be like in 2050? Population decrease and increase
There are two features in the growth of world population.First the annual increase in population in 15 European countries in the past few years has been only 300,000.The United Nations estimates that by 2050 the population of European countries will decrease from the current 0.72 billion.Second the population in developing countries is growing rapidly.Over the past 50 years the rate of increase in population has been fastest in the countries.By 2050 the population of Africa is expected to reach 1.8 billion,0.9 billion more than its current population. billion to 0.63 least developed
Global warming A recent research report indicates that it is quite possible that the Earth's temperature is rising well above the previous estimate.Such a result would have severe consequences( ) A research team from the University of Colorado used satellite data to estimate that the ice sheet will lose up to 48 cubic miles by 2050.Ice shelves in the Antarctic will have decreased by more than 7,200 square miles in the next four decades.
Water shortage Africa's rivers face dramatic( ) change that will leave a quarter of the continent severely short of water by the middle of the century. In those areas where there is already a water shortage it's going to have a devastating( ) effect the study says. If you're now walking 5 km to the nearest stream to get water by 2050 it's going to mean walking 30 km or moving your whole household closer to the water source.
Four wheels goodfour wheels bad The car has transformed the lives of people but the planet is paying too high a price.Today there are 620 million private cars worldwide to say nothing of buses vans and lorries.With current growth trends that number is expected to reach a staggering( ) three billion cars worldwide by 2050.
If we continue to burn fossil fuels at current rates levels of carbon dioxide in the atmosphere will reach 550 ppm (parts per million) by around 2050.This will increase global temperatures between 1.4 and 4.8 by 2050 and sea levels will rise between 0.09 and 0.78 meters.
1 Who do you think is the last killer for our earth? 2 What results will be caused if the number of private cars rapidly increases? 1.I think man is the last killer. 2 Burning more fossil fuels in creasing carbon dioxide and causing the Earth's temperature rising.
. Modern Heroes People have always wondered about the future.Some like to read fantasy stories and others write about the future themselves.While some people who plan the future of the world 1. futurologists.They hold a seminar to discuss the 2. of the future.Here's what they are predicting About the future are called Time Predictions
Computers will become 3. can use 4. instructions. The clothing industry will have produced new types of material that will remain 5. whatever you spill on them and garments will never get old and worn. .We In the next few years to give By the year 2015 No one will die of 6 welfare.People will live together in peace and 7. . and live on By the year 2025
People will live for at least 150 years in 8. .Tiny insect like robots will be sent around the cells of our bodies to help keep us healthy. By the year 2030 Computers will be millions of times smarter than us.A new type of electronic 9. might have developed. By the middle of the century By the end of the century We will have discovered other places in the 10. for living and ways to go further into space.
1.for a living 4.our 7.equality 2.endless possibilities voices 8 theory 3.handier 6.starvation 10.solar system 5.stainless 9.human
. 1 Which people of the following can be called futurologists? A People who like to read fantasy stories. B People who write about the future themselves. C People who plan the future for a living.
2What was the most common theme in science fiction novels in 19th century? A Adventure B Future C Love
3The futurologists will hold a seminar aiming to . A discuss the endless possibilities of the future B solve some problems about energy and natural sources C study the chances of people setting on other planets
4Why will many people want to attend the seminar? A Because they are curious about the future. B Because they want to make friends with futurologists. C Because they dream of starting new enterprises based on the predictions made by futurologists.
5What is the prediction by the middle of the century? A A new type of electronic human might have developed. B No one will die of starvation. C Garments will be so strong that they will never get old and worn. 1.C 2.B 3.A 4.C 5.A
. assess die of starvation based on for fun mass predict futurologist handier at least click into Nowadays 1. of people wonder about the future.Some imagine what the world will be like in the future.Some authors even 2. that have since happened.However for some people thinking about the future is not just 3. .They plan the future of the world for a living who are called 4. held at Newcastle this weekend. things .A seminar will be
Lots of people will attend it with the hope of starting new enterprises 5. they will hear at the meeting.I 6. websites of a few futurologists and learnt some predictions.Here are some By the year 2025 no one will 7. there will be food for everyone. By the year 2030 people can live for 8. 150 years.Tiny robots may be sent around the cells of our bodies to 9. carry out repairs to keep us healthy. the predictions the because our health and
In the next few yearscomputers will become 10. . 1.masses 4.futurologists 5.based on 7.die of starvation 10.handier 2.predict 3.for fun 6.clicked into 9.assess 8.at least
. 1 assist 2 recreation B to bring (sth.) up to date 3 handy C to evaluate or decide or fix the value of (sth.) 4 shortly D to help or aid 5 update E a person who is an expert in a special aspect A in a short time soon
6conflict 7 assess 8 specialist H convenient to handle or use 1.D 2.F 7.C 8.E F entertainment G to struggle or fight 3.H 4.A 5.B 6.G
. look into for fun based on die of live on no longer carry out link...to... 1 The new film is 2 It won't be an easy plan to 3 You can better sounds. 4 The government has set up a working party to the problem of drug abuse. a novel by Chi Li. . your TV your stereo for
5I did it just 6 They 4.look into . fish and rice. 1.based on 5.for fun 2.carry out 6.live on 3.link to
. 1 By the year 2015 the clothing industry will have produced new types of material that will remain stainless no matter what you spill on them. 2015 2 Red wine stains will no longer ruin clothes.Garments will also be so strong that they will never get old or worn.
3 Some like to read fantasy stories and imagine what the world will be like in 10,50 or even,1,000 years' time. 10 50 1 000 4 By the year 2030 development in biochemistry and medical science will have made it theoretically possible for us to live for at least 150 years. 2030 150
5By the middle of the centurycomputers that are millions of times smarter than us will have been developed.
