【正文】
blem 1? ② . What is the problem 2? ③ . What are the reasons for problem 2? ④ . What are the causes of problem1? ⑤ . What are the solutions to problem 1? ⑥ . What are the solutions to problem 2? Ⅳ .Writing and speaking : Do exercise 5, 6, 7 to show interest and keep a conversation going. Read through the example dialogue then make up a new one with your partner. (The purpose is to practice showing interest when listening to another speaker in a conversation and involving the person who is listening to you.) Ⅴ . Homework Practise using the useful words about protecting the sea by making sentences with them: protect, pollute, pollution, waste, deal with, be responsible for, break the law, punish, keep a record of , control, municate.