LANGUAGE IN USE EXERCISE A Directions and descriptions EXERCISE B Directions,descriptions and recommendations EXERCISE C Drawing conclusions GRAMMAR The be+possible.necessar):impossible,unnecessary etc. 本章思考题 SUMMARY CHECK Summarize the following instructions in note form.Draw up tables with headings for each column as follows: 1.Soilsand fertilizers. 2planingmdpcipe 3.Cultivation and diseases 4.Harvesting. 士要 参考资料 备注 9 本章思考题 LANGUAGE IN USE EXERCISE A Directions and descriptions EXERCISE B Directions, descriptions and recommendations EXERCISE C Drawing conclusions GRAMMAR The pattern it + to be + possible, necessary, impossible, unnecessary, etc. The modal verbs can, cannot; may, may not; must, must not; need, need not; should, SUMMARY CHECK Summarize the following instructions in note form. Draw up tables with headings for each column as follows: 1.Soils and fertilizers. 2.Planting and spacing. 3.Cultivation and diseases. 4.Harvesting. 主要 参考资料 备注