The author thus argues that whether it is the express breach in the institution of anticipatory breach of contract or the implied and constructed breach of contract applied in the institution of the right to plea of unease , its concrete scope of compensation should be confined to the interest in expectancy and losses avoidable due to the cancellation in advance should be deducted 因此，笔者认为：无论是适用预期违约制度的明示违约，还是适用不安抗辩权的默示违约和推定违约，其具体赔偿范围均应在期待利益的范围内，适当扣除因提前解除合同而可避免的某些损失。这样才真正符合公平、正义的私法理念。
The 4th section was the key section of whole article , and conducted the countermeasure study in the following law fields : engineering payment ensurence surety , legal demand on the available construction project fund , restlessly contradicted right , contract dissolution right , subrogation right , engineering payment compensation priority , the punish rule of engineering payment in arrears , construction industry enterprise law consciousness and law enforcement consciousness and level , so as to solve the problem of engineering payment in arrears in construction field radically 第四章是本文的重点部分,该章节从工程款支付保证担保、建设项目资金到位的法定要求、不安抗辩权和合同解除权、代位权、工程款优先受偿权、拖欠工程款的处罚规则、建筑业企业的法律意识及执法意识和执法水平等方面进行对策性研究,以期从根本上解决建设领域的拖欠工程款问题。
Then by comparing and analyzing the institution of anticipatory breach of contract and the institution of the right to plea of unease , the author points out the defects existing in the contract law of china and suggests that the institution of anticipatory breach of contract should be applied in case of express breach , while the institution of the right to plea of unease should be applied in case of implied and constructed breach of contract 文章首先探讨了预期违约责任的性质和特点，通过对预期违约制度与不安抗辩权制度的比较分析，指出了我国《合同法》的立法缺陷，建议在以后的立法中应当将明示违约适用预期违约责任；对默示违约和推定违约则应适用不安抗辩权制度。
Because our legal system belong to the common law , but anticipatory breach is the characteristic of english - american law , can anticipatory breach solve the problems in common law ? when the anticipatory breach is introduced , are there conflicts in the institution ? how to improve the anticipatory breach with these projblems with some faults and shortcomings ? this paper inquires these things in three parts . starting bread with the two outside forms of the auticipatory and the two outside forms of the auticipatory non - permermance , the first part of the passage inquires the value and the orcial base of the anticipatory breach by surveyingjit ' s origination and changing process under the origination and changing process under the special historical background . by comparing the anticipatory breach with counterargument right for security , the second part states a viewpoint that the former is superior is superior to the latter in protection parties " lawful rights though there are many similarities and differences between them . from this , we can come to a comclusion that the counterargument right for security is no substition for conticipetory breach and that the former should be part of the latter . the third party gives a detailed explanation of anticipatory breach in english ? american law systems in chinese system of anticipatory breach . finally , the anther makes some important suggestion : first , the subject of counterargument right for security should be attend to either party of the contract 其价值在于使受害方能提前获得法律上的救济，防止其蒙受本来可以避免的损失。第二部分笔者通过对预期违约与不安抗辩权的比较研究，对我国《合同法》应如何处理、协调来自不同法系的这两项并不完全相同的法律制度的关系提出了自己的观点。笔者认为不安抗辩权是通过对合同利益期待权的保护，实现法律“公平”和“安全”的价值，而预期违约除标示上述价值目标外，更是法律对“效率违约”这一经济理论的认可，显示了法律对“效益”这一价值目标的追求，从而提出预期违约与不安杭辫权二者制度功能相似而制度构造不同，预期违约制度较之不安杭辫权更有利于保护当事人的合法权益，由此得出我国《合同法》中不安抗辫权不仅不能替代预期违约，而是预期违约应该吸纳不安抗辫权的结论
This part introduces and analyzes the rules of anticipatory breach in american uniform commercial code , and united nations contracts for the international sale of goods , and then summarizes the forms , constitution of anticipatory breach and its comparison with einrededer unsicherkeit of civil law system . in the third part , the writer studies the remedies to anticipatory breach of contract . the fourth part is the designation of how to establish and perfect the rule of anticipatory breach in the contract code of china 第四部分在前文详细分析预期违约制度的基础上，结合我国《合同法》中的具体规定，就我国合同立法中该制度的不足及进一步完善提出具体设想，认为就不安抗辩和预期违约两种同领域的制度而言，预期违约制度更为合理和有效，故建议在我国的合同救济理论中放弃不安抗辩权进而建立完善的预期违约制度。
In this thesis , what i firstly introduce is the relation between contract law and contract of carriage of goods by sea , secondly about the relation in two legal system , namely common law system and civil law system , thirdly the regulations on contract of carriage of goods by sea in international convention and routine , last is something about the contract law of china and contract of carriage of goods by sea of china 然后讲述我国合同法的特点、内容等，重点讲述了我国合同法新引入的理论原则和制度，这一系列理论原则和制度反映了市场经济的要求，如平等、自愿、公平、诚实信用原则、格式合同条款、缔约过失责任、同时履行抗辩权、不安抗辩权、后履行抗辩权、债权人代位权和撤销权等等。并且介绍了我国海商法关于海上货物运输合同的规定。
For example , there is no requirement for sequential order of performance in the institution of anticipatory breach of contract . it is applicable to both cases of renunciation and impossibility of performance . and there is the right of cancellation given to the party of right to plea of unease traditionally 如：预期违约制度不要求有履行先后顺序，适用于拒绝履行和履行不能两种情况，而且在救济方法上赋予守约方解除合同的权利；而不安抗辩权制度则要求有履行先后顺序，仅适用于履行不能的情况，且传统上没有赋予不安抗辩权人合同解除权。
In the performance of contracts discussed in this paper , distinct treatments shall be ensured towards mobile telecom service providers ’ blacklist measure and associated suspense of service measure , aimed at the users ’ change of number so as to evade payment , for their different legal characters 移动电信服务合同履行过程中用户的“逃费换号”行为实质是“以合法形式掩盖非法目的” ,经营者针对该行为采取的“黑名单”措施符合法律的规定,但是不属于行使不安抗辩权的行为。
