托福寫作中的每篇文章都是由段落構(gòu)成的，所以一篇好的文章必須每段起到它的作用，那么每個(gè)段落怎樣安排內(nèi)容最恰當(dāng)呢？一個(gè)段落必須有一個(gè)中心即主題思想，有若干推展句、論據(jù)，使主題思想得到充分展開并且用拓展句觀點(diǎn)支持主題，這就是完整性。下面我們就對(duì)這三個(gè)托福寫作環(huán)節(jié)分別加以說明。
1.統(tǒng)一性
一個(gè)段落內(nèi)的各個(gè)句子必須從屬于一個(gè)中心，任何游離于中心思想之外的句子都是不可取的。請(qǐng)看下例：
Joe and I decided to take the long trip we‘d always wanted across the country. We were like young kids buying our camper and stocking it with all the necessities of life. Bella bakes the best rhubarb pie. We started out in early spring from Minneapolis and headed west across the northern part of the country. We both enjoyed those people we met at the trailer park. Joe received a watch at his retirement dinner. To our surprise， we found that we liked the warm southern regions very much， and so we decided to stay here in New Mexico.
本段的主題句是段首句，controlling idea（中心思想）是take the long trip across the country。文中出現(xiàn)兩個(gè)irrelevant sentences，一個(gè)是Bella bakes the best rhubarb pie，這一段是講的是Joe and I ，中間出現(xiàn)一個(gè)Bella是不合適的。還有，Joe received a watch at his retirement dinner這一句更是與主題句不相關(guān)?？忌谒募?jí)統(tǒng)考的作文卷上常常因?yàn)樵斐鰅rrelevant sentences（不相關(guān)語句）而丟分，值得引起注意。再看一個(gè)例子：
My name is Roseanna， and I like to keep physically fit. I used to weigh two hundred pounds， but I joined the YMCA for an exercise class and diet program. In one year I lost eighty pounds. I feel much better and never want to have that much weight on my five-feet frame again. I bought two new suitcases last week. Everyday I practice jogging three miles， swimming fifteen laps， lifting twenty-pound weights and playing tennis for one hour. My mother was a premature baby.
本段的controlling idea 是like to deep physically fit，但段中有兩個(gè)irrelevant sentences，一個(gè)是I bought two new suitcases last week，另一個(gè)是My mother was a premature baby。
從上面兩個(gè)例子可以看出，native speakers同樣會(huì)造出來irrelevant sentences。卷面上如果這種句子多了，造成偏題或離題，那問題就更嚴(yán)重了。
1.統(tǒng)一性
一個(gè)段落內(nèi)的各個(gè)句子必須從屬于一個(gè)中心，任何游離于中心思想之外的句子都是不可取的。請(qǐng)看下例：
Joe and I decided to take the long trip we‘d always wanted across the country. We were like young kids buying our camper and stocking it with all the necessities of life. Bella bakes the best rhubarb pie. We started out in early spring from Minneapolis and headed west across the northern part of the country. We both enjoyed those people we met at the trailer park. Joe received a watch at his retirement dinner. To our surprise， we found that we liked the warm southern regions very much， and so we decided to stay here in New Mexico.
本段的主題句是段首句，controlling idea（中心思想）是take the long trip across the country。文中出現(xiàn)兩個(gè)irrelevant sentences，一個(gè)是Bella bakes the best rhubarb pie，這一段是講的是Joe and I ，中間出現(xiàn)一個(gè)Bella是不合適的。還有，Joe received a watch at his retirement dinner這一句更是與主題句不相關(guān)?？忌谒募?jí)統(tǒng)考的作文卷上常常因?yàn)樵斐鰅rrelevant sentences（不相關(guān)語句）而丟分，值得引起注意。再看一個(gè)例子：
My name is Roseanna， and I like to keep physically fit. I used to weigh two hundred pounds， but I joined the YMCA for an exercise class and diet program. In one year I lost eighty pounds. I feel much better and never want to have that much weight on my five-feet frame again. I bought two new suitcases last week. Everyday I practice jogging three miles， swimming fifteen laps， lifting twenty-pound weights and playing tennis for one hour. My mother was a premature baby.
本段的controlling idea 是like to deep physically fit，但段中有兩個(gè)irrelevant sentences，一個(gè)是I bought two new suitcases last week，另一個(gè)是My mother was a premature baby。
從上面兩個(gè)例子可以看出，native speakers同樣會(huì)造出來irrelevant sentences。卷面上如果這種句子多了，造成偏題或離題，那問題就更嚴(yán)重了。