(1) Purpose: Material 1, standardize the tenancy relationship and resist the personal restraint of landlords on tenants; Coordinate lease disputes and maintain normal production. Material 2: Protect farmers, resist mergers and increase national income.

(2) Historical background: the tenancy contract relationship is universal, the yeoman is still the main body of agricultural production, the land merger is intensified, and the government adjusts its policies according to social changes.

(3) Method: Class (stage) analysis method, which is divided into two parts. Conclusion: The material 1 is basically positive. Material 2, basically negative.