写作2—Sentence structures.ppt

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写作2—Sentence structures

Sentence structures of SET 董亚茹 李玉寒 刘书婷 汪胡芳 刘琼云 李进 Content 1.Introduction 2.Syntactic features 3.Syntactic structures Introduction EST: English for science and technology (EST) is a branch of English for special purposes, it is a kind of style that the scientific workers formed gradually in the process of transfer of science and technology information in English . Introduction General features of EST 1 Impersonal 2 Formal in mode of speech 3 Objective and Accurate in Statement 4 Standard in Language 5 Unadorned in stylistics 6 Strict in Logic 7 Concentrated in Technical Terms Introduction The sentence structure must be plainness and preciseness,and insist on the three criteria. Precision clarity brevity ‘These three criteria are highly desirable in scientific writing but they should always be considered in that order.’ David Lindsay,?A Guide to Scientific Writing,p.38 Syntactic features 1. Passive voice 2. The non-finite verbs 3. Adjective phrases for postpositive attributive 4. The widespread application of subjunctive Syntactic features- Passive voice Passive voice The passive voice is defined in terms of morphorlogy, syntax, and semantics. 1. Don’t have to care about the person who did those actions/experiments. 2. Make EST work more impartial. 3.Make sentences become clear and correct. Syntactic features- Passive voice e.g.1The excipient citric acid (CA) has been reported to improve oral absorption of peptides by different mechanisms. The balance between its related properties of calcium chelation and permeation enhancement compared to a proteolysis inhibition was examined. A predictive model of CA’s calcium chelation activity was deve

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