Read carefully and mark Are these statements true or false? 1. The temperature last century didn’t increase much. F 2. Everyone believes that global warming is caused by the activities of humans. F 3. Janice Foster believes that global warming is caused by the burning fossil fuels. T F 4. Natural gas is a greenhouse gas.
Some people others
predict _____________ severe storms __________,_________, droughts famines the spread of ____________________ diseases and _________, ____________________ the destruction of ________. species
trap…from…: keep sth in a place 存住…中的…
How does it work
Gases in the atmosphere surrounding the earth. People burn some fossil fuels like coal,
natual gas and oil to produce energy , Greenhouse which causes the increase in the earth’s Gases! temperature Some byproducts 副产品 of this process, like carbon dioxide(CO ), methane(CH ), water vapour(H O), are called greenhouse gases.