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《Lesson 1 Global Warming》集体备课PPT课件优质课下载
Can we take the heat?
Vocabulary learning
In the last few decades, scientists have reached consensus that human beings are causing the changes in the Earth’s climate.
consensus
Vocabulary learning
The scientists claim that global warming is relevant to human activities.
The link is not a coincidence.
related
certain to happen.
relevant
coincidence
Vocabulary learning
If the sun’s rays bounced back into space, the Earth would be cold and impossible to live on.
returned
bounce back
Vocabulary learning
If we continue to produce carbon dioxide and other gases in such huge quantities, we are condemning life on earth.
destroying
condemn
Vocabulary learning
However, some governments express reservations about whether global warming is really caused by human activities.
a feeling of doubt
reservation
Vocabulary learning
Many people will sacrifice the green environment to make a lot of money.