雅思寫作：好的段落實(shí)現(xiàn)的是交際功能

一個(gè)段落的主題思想主要是靠推展句來實(shí)現(xiàn)，如果只有主題句而沒有推展句來進(jìn)一步交待和充實(shí)，就不能構(gòu)成一個(gè)完整的段落。同樣，雖然有推展句，但主題思想沒有得到相對圓滿的交待，給讀者一種意猶未盡的感覺。這樣的段落也不能完成其交際功能。例如：

Physical work can be a useful form of therapy for a mind in turmoil. Work concentrates your thoughts on a concrete task. Besides, it is more useful to work--you produce something rather than more anxiety or depression.

本段的主題句是段首句。本段的兩個(gè)推展句均不能回答主題句中提出的問題。什么是“a mind in turmoil”(心境不平靜)Physical work又如何能改變這種情況?為什么它能起therapy的作用?讀者得不到明確的答案。建議同學(xué)們最好參加一些雅思寫作班，了解一下雅思寫作技巧很有必要。

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若要達(dá)到完整就必須盡可能地簡明。例如：

It is not always true that a good picture is worth a thousand words. Often writing is much clearer than a picture. It is sometimes difficult to figure out what a picture means, but a careful writer can almost always explain it.

段首句所表達(dá)的主題思想是一種看法，必須有具體事例加以驗(yàn)證。上述兩個(gè)推展句只是在文字上對主題作些解釋，整個(gè)段落內(nèi)容空洞，簡而不明。如果用一兩個(gè)具體的例子的話，就可以把主題解釋清楚了。比如下段：

It is not always true that a picture is worth a thousand words. Sometimes, pictures are pretty useless things. If you can't swim and fall in the river and start gulping water, will you be better off to hold up a picture of yourself drowning, or start screaming "Help"?