Act2. Mark stress in the underlined words. Then practise the sentences. a. I made lots of grammatical mistakes in my writing. b. Chemical waste has been dump into this lake, so it’s polluted. c. My father is a big collection of classical music. d. Some people need medical help because they have drunk contaminated water. e. Because of artistic achievements, we have decreased air pollution. f. The reduction in air pollution was dramatic last year. g. One-fifth of the people in the world are Chinese. h. The temperature today is only one degree higher than yesterday. i. My father is a trainee. Act3. Complete each sentence with the suitable form of the word provided. 1. Technology will help________________ natural disasters.(PREDICTION) 2. _______________ monuments are always great attractions for visitors and tourists. (ICON) 3. Scotland is an interesting place to visit with its rich ______________ (CULTURAL) 4. This river will soon become _____________ if the people here keep dumping waste into it. (POLLUTION) 5. The old tradition of first-foot is still practiced today in________________. (SCOTS) 6. Scientists say that exhaust fumes are______________ our city.(POISON) 7. That fierce storm left behind badly__________________ buildings. (DAMAGE)