Adverb "but," "down" And "but" The Comparative Study

“Fan er(反而)”、“Dao(倒)” and“Que（却）”are stronger the turn tone of adverb.By observing1990-2011books、language material and error，this paper is to analyzethe similarities and differences between adverb“Fan er(反而)”、“Dao(倒)” and“Que（却）”，in expressing contrast meaning and mood meaning through making use ofvarious methods such analysis in difference、statistics analysis and so on.This paper includes seven Chapters.In chapter1we according to the authoritative lexicographical book of theirinterpretation, we find they have similar semantics: the one is the sentence has tonetransition, the other is the results they lead to has significant comparison topre-contrast.“Faner” has progressive relation,“Dao” has concession.“Que” hasemphasized.In chapter2is “The use function of language and the Semantics analysis”. Onthe one hand,“Fan er(反而)”、“Dao(倒)” and“Que（却）”have chapter function. Onthe chapter connection is that both have a strong vicarious function; difference is"inverted”. Also has a cohesive indicates, contains chapters connectivity. On the otherhand，in respect of conveying mood，both“Fan er(反而)”、“Dao(倒)” and“Que（却）”can enhance or add mood.In chapter3is “the location of a sentence”.“Faner” can only located at the end ofa sentence. But “Dao” and“Que can located at the head，middle or end.In Chapter4we observed acquisition of “Fan er(反而)”、“Dao(倒)” and“Que（却）”through questionnaire and language material analysis in both Chinese andInter language and tried to explain reasons of those mistakes.Chapter5provides research in teaching. We observed several series of Chinesebooks to analysis the arrangements of “Fan er(反而)”、“Dao(倒)” and“Que（却）”andobserved the designs of exercises，on which basis to make some teaching suggestion.