Thanks for yur answer
Yes ,I've seen it in file 3,But file 3 is going to be taught in the 2nd term according to the yearly distribution .And " talk about causes and effect of pollution " is in the 1st term lerrning objectives .
Don't they mean to replace the paragraph which is in file 2 about animal in way of extiction by pollution ??????
If it's yes , I think it will be better to do this lesson as a kind of revision or reinforcement in the Td sessions (guided work sessions ) as a text with the reading comprehension qqs , mastery of ******** and of course a written expression .