内容正文:
Topic:Let’s save the earth!
Unit 13 We’re trying to save the earth!
Section B Writing
What has caused the great changes?
Read and underline the topic sentence of each paragraph.
Among all these problems, air pollution is the most serious one.
As we all know, air pollution does great harm to people’s health.
Considering all these bad effects, immediate actions must be taken to reduce air pollution.
Para.1
Para.2
Para.3
Air pollution
Being a killer.
Affecting
____________________________________________
Choosing_____________________
Planting trees.
math and language abilities.
clean energy.
Read Para. 2-3 and finish the mind map.
Causing ___________________________________________
serious diseases
Using _____________