摘要：
“Chufei（除非）” may be used to express either the only necessary condition, denoted by “chufei1”, or the exclusive object or condition, denoted by “chufei2”. The exclusive clause of “chufei（除非）” may pre-cede or follow the associated （main） clause. The exclusive clause of “chufei（除非）” and its conclusion clause have positive and negative forms, and the conclusion clauses are distributed in both realistic and non-realistic types of modality, forming a variety of sentence patterns.
摘要：
Fouze（否则） is an important linking word, which can be used to construct the pattern of＂p, Fouze（否则） q＂. The Fouze（否则） could be conditionally leaved out in the conditional, imperative, or optative patterns. There are certain semantic basis and syntactic cause for the ellipsis of Fouze（否则）. The structure of ＂p, Fouze（否则） q＂ would be affected and changed while the Fouze（否则） being left out.
摘要：
This article analyses the errors foreign cording to the analysis, the author points out that students make when using ＂V ＋ jiàn（见）＂. Ac the teachers should not only explain jiàn as ＂see＂ when it is used as a verb, but also explain jian as a complement, showing the result of a sensory action （see, hear or smell）. On the basis of this, the teachers can illustrate properly that the special usage of jiàn stems from synesthesia. This can help the foreign students improve their Chinese learning and enioy its charm.
