长篇主旨阅读 1. South African government has adopted a new policy to ban thinner, less durable plastic bags from production. 2. Ireland government has managed to reduce the use of plastic bags through taxation policy. 3. The annual use of plastic bags in Australia has exceeded 6 billion. 4. Individual effort to stop using plastic bags plays an important role in improving our environment. 5.Corn-based bags, though friendly to the environment, cost too much in production to become widely used. 6. What’s bothering people now is the question of what should be used to replace plastic bags as garbage bin liners. 7. Many thick, clothing-carrying plastic bags, made from low density polyethylene, can hardly be recycled. 8. Plastic bags have put sea life in serious danger, killing fish and turtles on a daily basis. 9. Year by year large quantities of toxic plastic bags flow through waterways and end up in the sea. 10. Plastic bags can turn into serial killers because it takes an incredibly time for the bags to decay, much slower than dead animals.