关于假设句、让步句、条件句

ON HYPOTHETICAL CLAUSE,CONCESSIVE CLAUSE AND CONDITIONAL CLAUSE

假设句是归入条件句好还是单列一类好?让步句能不能放在假设句中?历来有不同看法。如果从逻辑的角度和语义转换的角度进行考察,便会发现:让步句不宜归入假设句,而单列一类较好;假设句应放在条件句中,条件句应另立三个子类:充足条件句、必要条件句和无条件句。

There are different opinions towards hypothetical clause is included in conditional clause or is classified as a single category, and towards whether concessive clause is just the same as hypothetical clause. From the angles of logic and semantic transference, the author thinks that it is improper to classify concessive clause into hypothetical clause and it better to treat it as a single category ; and that hypothetical clause should be discussed with conditional clause, which can be subdivided into three kinds: full conditional , compulsory conditional and empty conditional.