句式簡潔性原則包括句式無重復(fù)和語義簡潔兩個(gè)方面。
1、句式無重復(fù)是針對(duì)同一篇文章中，過多使用同一種句式的現(xiàn)象提出的。
在一篇文章中，要盡量避免使用雷同句式。例如：表達(dá)個(gè)人觀點(diǎn)時(shí)，盡量不要通篇都是I think, in my opinion。要實(shí)現(xiàn)句式無重復(fù)，可以用我們接下來要講到的長短句相間原則和特殊句式原則。
2、語義簡潔是指句與句之間聯(lián)系緊密，語義上不重復(fù)。如果兩個(gè)分句在語義上聯(lián)系較緊密，建議用一個(gè)簡單句來表達(dá)。
?長短句相間原則
短句一般語氣重，多在一個(gè)復(fù)雜的意思表達(dá)完成之后表示強(qiáng)調(diào)，富有力度；長句則適用于準(zhǔn)確表達(dá)復(fù)雜的思想。這樣結(jié)合可以很好地發(fā)揮兩種句子的優(yōu)點(diǎn)，反之，如果只用長句或短句則會(huì)使行文顯得過于單調(diào)。所以在寫作中應(yīng)該是長句和短句交替使用。
請(qǐng)看下面考生的范文：
Almost definitely, our parents are the best teachers at the beginning of our life, which actually reflects the role of parents in nature. Parents are the most committed and involved in teaching their children; they have the instinct to sacrifice a part of themselves for the betterment of their children. They do so because they love us. They want their children to be successful and thus will not teach them bad things. And of course, implicit learning occurs when children unconsciously follow some of their parents' habits, mannerisms, and kinds of behavior.
作者要論證父母在子女的早期教育中所發(fā)揮的作用。在用較長的句子對(duì)此進(jìn)行論述之后，用一句精悍的總結(jié)點(diǎn)出了父母這樣做的原因——They do so because they love us.短短一句話七個(gè)單詞卻有著非比尋常的分量，同時(shí)又自然地引出了下文的論述。
