Task4: Group-work
Present your group’s ideas to the whole class.
Yes, I agree with you that air pollution is one of the most serious problems. Much energy is needed to run the factories. Nearly all of this energy is produced by burning fuels. The burning causes air pollution.
(2)常见后缀:
后缀
功能
-er, -or
-ian
-ing
构成名词
-ist
-ment
-ness -th
构成名词
-tion
-ty
例词 teacher, worker musician building, painting artist, scientist agreement, government happiness, illness truth, warmth competition, education activity, safety
Complete the sentences with the words in the box. hopeful impossible reuse unhealthy wasteful 1. Polluted water is __u_n_h_e_a_l_th_y___. 2. It is __w_a_s_te_f_u_l_ to throw so much food away. 3. If you look after things well, you may __r_e_u_se___ some of them later. 4. It is _i_m_p_o_s_s_ib_l_e_ to clean up the whole river in such a short time. 5. If we pay attention to pollution now, the future will be __h_o_p_ef_u_l_.