前程百利小编将在这篇文章和大家一起分享新托福写作真经4test3的综合写作部分。希望大家能够按照以下的备考思路，更好地攻克托福写作题目。
Reading & Listening
Reading
In several western regions of the United States, there are low-lying circular mounds. Called mima mounds, they are anywhere from three to fifty meters in diameter and stand around thirty centimeters to two meters in height. In the United States, there are three main areas and several minor areas where mima mounds are found. Despite their presence in many places, experts are not exactly sure how mima mounds were formed. There are, however, three main theories concerning their formation.
Some mima mound experts believe they were created by various Native American tribes during the past. The major and minor mima mound sites in the U.S. are all located in places where Native American tribes once flourished. These experts speculate that the mounds were created for ceremonial purposes. The tribe members might have used the mounds in various religious ceremonies, or they might have utilized them as burial mounds for deceased tribe members.
The second major theory concerning their formation centers on seismic activity. Two of the three major sites for mima mounds in the U.S. are in geologically active areas. This is also true of many minor sites. It is possible, some geologists claim, that earthquakes somehow changed the surface of the land and, in conjunction with other natural forces such as wind and water, formed mima mounds.
Additionally, there are a few experts who speculate that animals created mima mounds. They claim that gophers, which are small burrowing animals, were responsible for forming them. Simply put, the gophers built the mounds to live in. These individuals defend their argument by pointing out that many mima mounds serve as homes to gopher colonies. In their opinion, it is highly likely that gophers digging tunnels underground pushed up the soil from below and thereby created these mysterious mounds.
阅读要点：
观点：There are, however, three main theories concerning their formation.
这些小土丘的成因有三种
1、Some mima mound experts believe they were created by various Native American tribes during the past.一些专家认为，这些土丘很可能源于之前当地美国人造成的。
2、The second major theory concerning their formation centers on seismic activity.第二个小土丘形成的原因是由于地震活动。
3、Additionally, there are a few experts who speculate that animals created mima mounds.第三个成因：动物的活动形成了这些小土丘。
Listening
笔记符号
听力要点
观点：小土丘的成因目前还不知道，因为阅读中说的三个成因都存在问题。
1、小土丘是自然形成的，因为专家并没有在挖掘土丘的过程中发现任何人类遗留的痕迹。
2、小土丘不可能是地震活动造成的，以为这样的小土丘随处可见，而且很多地方并不处于地震带，所以很稳定。
3、囊地鼠不是小土丘形成的原因，因为没有人见过囊地鼠建造小土丘。
范文解析：
SAMPLE ESSAY
①The lecturer argues that the formation of the mima mounds in the United States is still unknown. ②This directly refutes the reading passage’s claim that the formation of mima mounds can fit into one of the three major theories.
First, the professor says that mima mounds were artificially made. According to the professor, there are no artifacts or human remains found during the process of excavation. ③This casts doubt on the reading passage's claim that mima mounds were made by Native Americans for ceremonial purposes.
On top of that, ④the lecturer contends that mima mounds are spotted in various parts of the country. Those lands are geologically stable; in fact, they hardly experience any earthquakes. In that sense, it seems irrational to state that mima mounds are the results of geological activity such as earthquakes.
Finally, it turns out that gophers have no relationship with mima mound building. No one is sure whether gophers actually built the mounds or whether they moved into the mounds to dwell in them. In addition, the theory stating gophers built the mounds cannot be supported since no one has seen a gopher constructing a mound. ⑤This goes against the idea mentioned in the reading passage that gophers should get credit for creating mima mounds.
单词
formation[fɔr'meʃən]n.· 形成;构造;编队
excavation[,ɛkskə'veʃən]n.· 挖掘，发掘
refute[ri'fjʊt]vt.· 反驳，驳斥;驳倒
范文中可以提取出来作为模板的
①The lecturer argues that……
②This directly refutes the reading passage’s claim that……
③This casts doubt on the reading passage's claim that……
④the lecturer contends that……
⑤This goes against the idea mentioned in the reading passage that……
以上就是前程百利小编和大家分享的托福写作真经的综合写作的题目，我们主要按照阅读要点和听力要点分析。听力笔记的学习以及托福综合写作范文万能语句的积累为目的，更好的备考托福综合写作。
