【正文】
1. Some people destroy the environment. doesn’t water the flowers every day. a large population cause many problems? clean their classroom every day. Exercises Change the following sentences into the passive voice sentences. The environment is destroyed by some people. The flowers are not watered by him every day. Are many problems caused by a large population? Their classroom is cleaned by them every day. Summary 1. Some words: pack, tonight, Spanish, municate, conversation, interpreter, explain, impossible, twin, divide, dig, lay 2. Some phrases: on business, be similar to, have trouble (in) doing sth, ask for help, divide… into 3. Some sentences: (1)If necessary, I’ll ask an interpreter for help. (2)Have a good trip. I wish you success. 1. Understand the official language of some countries. passive voice more properly. Assignment: 1a. the useful expressions and key sentences which we learn today. Section B in your workbook. Section C.