1. 7. Explain the workload in textbooks, 43 Ex.6 and read in working order. Then the students underline the key words. Check the answers and teacher of students. Later, the teacher matching to write a list of causes of air pollution.The thought of at least 1 advice on 1 causes the teacher walk around the classroom to check the answers of students
.2. Explain the workload in textbooks, page 43 Ex.7a and read the information table, then the students match the cause Solution to introduce and the consequences are related, then check the answers of students
1.Presentation outline in writing in the textbooks. The page 43 Ex.7b and explain the workload to the students listen, then ask a question in Plan encouraging response from students. To make the layout of writing completely
2. Read the sentences in the textbooks, 43 Ex.
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