基础英语教学EarthDay课件

1、Earth DayApril 22nd Earth DayWhat is earth day?It is a day when people around the world try to do positive things to protect the environment and our planet. 1st earth dayThe first Earth Day was organized in the United States in 1970 because pollution in the USA was very bad : 60% of lakes and rivers

2、 were polluted. 1st earth dayGaylord Nelson, a US senator, encouraged people to protest. On 22 April 1970; over 20 million people joined, rich and poor were united. EARTH DAY 2019In 1990, 20 years after the first Earth Day, environmental leaders from other countries asked to join the movement. That

3、year, 200 million people from 141 countries celebrated EarthNow, more than 1 billion people in 192 countries take part in this day.Earth Day 2018: End Plastic Pollution Earth Day 2019: Protect Our SpeciesEarth Day 2020: 50th Anniversary of Earth Day!Earth Day 1970Gaylord Nelsons Speech (CBS News wit

4、h Walter Cronkite) /watch?v=y3RCPAtmpv8&list=PL3480E41AA956A42B&index=2 PROTECT OUR SPECIES QUIZ1/10. What is an endangered species?A type of organism that is at risk of extinction.A species found on land and in the ocean. A species that is threatened by prey. All of the above. Scientific evidence s

5、tates that were now losing species at 1,000 to 10,000 times the normal rate, with many extinctions happening daily.2/10. The U.S. does not currently allow hunters to import animal trophies or parts.False.True. Recently, the U.S. Fish and Wildlife Service reversed a ban on trophy imports for some Afr

6、ican species and removed findings that gave broader permissions for importation. As such, trophy import applications for elephants, lions, and bontebok across six African countries are currently being reviewed on a case-by-case basis.3/10. Climate change affects the gender of sea turtles.True.False.

7、 Warming temperatures can impact the gender of hatchlings. Sea turtle gender is determined by the temperatures during fertilization. Warming trends could skew the balance of sea turtle offspring and future populations.4/10. What percentage of crops are dependent on bee pollination in the U.S.? 100%

8、30% 65% 90%Bee pollination is vital to maintaining life on our planet. In the U.S. alone, pollination produces nearly $20 billion worth of products every year and $217 billion worldwide.5/10. What can you do to help protect coral reefs? Buy and use oxybenzone and octinoxate-free sunscreen. Avoid pur

9、chasing coral. Choose seafood that has been sustainably sourced. All of the above.6/10. Nearly 40% of the 11,000 different bird species on Earth are experiencing a significant increase. False. True.They are facing a significant decline. 7/10. Sounds from boats and sonar devices are dangerous to whal

10、es. True. False.Ocean noise created by human activities puts marine species at risk and threatens their survival. In fact, increased noise levels can impact certain species like whales, who rely on the ability to communicate and hear in their natural environment to find food, mates, and avoid predat

11、ors.8/10. Poaching is a severe threat to elephants. How many elephants are killed for their tusks? 50 per day. 175 per week. 100 per day. 15 per day.An astounding 100 elephants are killed each day for their tusks to fuel the illegal ivory trade. 9/10. How are microplastics (plastics that are less th

12、an 5 millimeters long) a threat to crustaceans? Microplastics are not a threat to crustaceans because they are biodegradable and safe to digest. Microplastics are so small that they do not post any harm to crustaceans or humans.Microplastics can damage organs and increase exposure to toxic chemicals. This can threaten immune function, growth and reproduction. This has potentially larger implications up