unit-2-working-the-land-period-3-優(yōu)秀教案(人教版必修4)-展示頁(yè)
2025-04-03 02:00本頁(yè)面
【正文】 l waste from animals”.T:Thank you for your good ’s e to the next paragraph.S:The main idea for the last paragraph is “Organic farmers change crops every two or three years”.T:Every one has done a good job,I hope everyone got all the answers by yourself.Step 3 Reading for detailsT:Now please read the passage again,and try to find all the answers for the following questions: is organic farming? problems are caused by using chemical fertilizers? do organic farmers grow peas or soybeans after corn or wheat?T:Finish?Any one gets the answer for the questions?Suggested answers: farming means growing crops without chemical fertilizers. are three ,chemical fertilizers affect the soil and the water supply ,they allow farmers to grow the same crop year after year and exhaust the ,they kill both helpful and harmful pests. grow peas or soybeans after corn or wheat so that peas and beans can put minerals back into the soil,making it rich and healthy and ready to grow more wheat or corn.Step 4 Extensive ReadingT:Please read the text for the third time,then fill in the following table.(Five minutes later the teacher check the answers one by one.)Advantages of organic farmingReason use natural waste from animals. makes the soil richer in minerals and so more fertile. soil is not exhausted. and soybeans renew the minerals in the soil and it bees rich and
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