辛达托福代报考位提醒：到2020年3月15日官网没有释放考位，在此提醒广大考生抓紧时间报名，如果暂时没有考位的话可以提交给我们代报，广大考生注意考试时间.

托福阅览中阐明文是比较常见的一种文章类型，而涉及到这种文章类型的题目一般也有较高难度，因而考生需要从文章结构开端就了解阐明文的解题思路，下面辛达托福代报会经过实例做详细解读。

托福阅览阐明文结构解说

一般而言，托福阅览中的阐明文会阐明某个现象，文章的榜首段是：介绍背景及引出下文;之后的主体段，结构也很明晰：宗旨句Topic sentence + 解释句Explain + 举比如Examples + 总结句Summary。 其实跟咱们高考语文有异曲同工之妙。下面辛达托福代报带大家来看实例解析：

官方真题Official-19 The Roman Army's Impact on Britain

In the wake of the Roman Empire's conquest of Britain in the first century A.D., a large number of troops stayed in the new province, and these troops had a considerable impact on Britain with their camps, fortifications, and participation in the local economy. Assessing the impact of the army on the civilian population starts from the realization that the soldiers were always unevenly distributed across the country. Areas rapidly incorporated into the empire were not long affected by the military. Where the army remained stationed, its presence was much more influential. The imposition of a military base involved the requisition of native lands for both the fort and the territory needed to feed and exercise the soldiers' animals. The imposition of military rule also robbed local leaders of opportunities to participate in local government, so social development was stunted and the seeds of disaffection sown. This then meant that the military had to remain to suppress rebellion and organize government.

留下 these troops had a considerable impact on Britain;也就是榜首句说的是罗马戎行对英国有影响。这句话相当于对题意图论述，告知了文章的整个大背景。 之后2～4句其实告知前提，开端详细的说开，要预算戎行对布衣的影响首先要了解一个事实：战士不是均匀分布的。那已然不是均匀分布，肯定是有多有少的。所以，第三句接着说了有些当地战士少：很快融入帝国的区域;第四句说有些当地战士多影响大：戎行驻扎的当地。第5～7句说回重点，也就是what，到底有哪些影响：军营先要征地;然后会抢走当地领导参与政府的机会;之后社会发展受阻，公民不满而反抗，最终军事打压。

首段的榜首句话，虽然语句很长，但其实只需要捉住结构层次进行剖析就能找到阅览重点。

所以一共7句话的段落，分层三个层次，宗旨句+前提阐明+重点论述。事实上，段落榜首句就完成了background+introduction两层意图：英国被罗马帝国降服+ 战士的营地/防御工事以及参与当地经济所造成的影响。

Economic exchange was clearly very important as the Roman army brought with it very substantial spending power. …… Such activities had a major effect on the local area, in particular with the construction of infrastructure such as roads, which improved access to remote areas.

第二段一开端就告知了经济交流的影响：强壮的购买力，以及帮助建筑基础设施。

Each soldier received his pay, but in regions without a developed economy there was initially little on which it could be spent. …… These settlements acted like small towns, becoming centers for the artisan and trading populations.

第三段仍是在讲经济：刚来的时候战士有钱没当地花;最终戎行驻扎地变成了小镇。

The army also provided a mean of personal advancement for auxiliary soldiers recruited from the native peoples, as a man obtained hereditary Roman citizenship on retirement after service in an auxiliary regiment. …… By the later Roman period, frontier garrisons (groups of soldiers) were only rarely transferred, service in units became effectively hereditary, and forts were no longer populated or maintained at full strength.

第四段开端讲另一个重大影响：当地人经过从戎取得可继承的罗马公民位置。

This process of settling in as a community over several generations, combined with local recruitment, presumably accounts for the apparent stability of the British northern frontier in the later Roman period. It also explains why some of the forts continued in occupation long after Rome ceased to have any formal authority in Britain, at the beginning of the fifth century A.D. The circumstances that had allowed natives to become Romanized also led the self-sustaining military community of the frontier area to become effectively British.

第五段，做了个小总结，讲这种交融进程及当地招募促进了北部边境的稳定。

经过上文实例解说，辛达托福代报相信我们关于托福阅览阐明文的基本结构和解题思路也有了必定了解。之后我们在经过一些练习加深对阐明文的认识和解题办法，以后面对这类高频阅览文章类型就能顺利解答确保得分了。