内容正文:
Section a activity to a, listen to the conversation and fill in the blanks with correct adjectives. Hi, fusion, how was your school trip to the Whitewater planned? Was IT boring? No, IT wasn't IT all IT was really . interesting. Wow. what did you see? We saw the plant make dirty water clean again. really . how . well, first dirty water from our homes goes into the plant. Then special screens remove large pieces of waste from the water. What happens next? Well, large machines remove germs and other things from the water. These things are usually too small e to sea. IT takes a few more steps after that before the water . becomes clean again. Wow. I used to think IT was easy to get clean water. Me too. I didn't realize that was so hard.