Unit 2 Saving the Earth Topic 1 Pollution has caused too many problems .Section CSpeak out the names of the pollution.air pollutionlight pollutionlitterwater pollutionsoil pollutionnoise pollutionnoise pollutionNoise is a sort/kind of pollution.There are all sorts/kinds of noises.They make us uncomfortable and unpleasant.n. 种类； v. 把……分类adj. 使人不舒服的adj. 令人不快的noises made byLet’s write down the things that can make noises.pianobuscatwindUnderline the topic sentence of the passage in 1a.Give a proper title to this passage.Try to find out the topic sentence to understand the content of a paragraph.Read 1a and complete the following tasks.Noise is also a kind of pollution and is harmful to human’s health.Noise PollutionHow does noise harm people’s health?a. People often ____ ______.b. People often feel ____________ and __________.c. People may become _____ or _____.d. Your point: _____________________________.go deafuncomfortablesickunpleasantdeaf3. Which phrase has the same meaning as “is harmful to”?4. Which sentence shows that many teenagers’ hearing in America is not good?5. Why is the hearing of many young Americans not good?Answer the questions.“do harm to”.Many teenagers in America can hear no better than 65-year-old people do.Because they always listen to loud pop music.1. produce A. to hurt someone2. deaf B. a type or a kind3. print C. not be able to hear4. harm D. to grow or make something5. sort E. to put words or pictures onto paper using a machine1b Read 1a and match the words with their meanings.a. Not all people know noise is also a kind of pollution. _____ ________ know(s) noise is a kind of pollution ____ ______.b. Many teenagers in America can hear no better than 65-year...
