本文托福综合写作题目为怀德海先于莱特兄弟成功试飞飞机2016年3月26日托福考试写作

　　托福综合写作范文Sample answer:

　　The reading puts forward three reasons to illustrate the bad effects brought by those prairie dogs. However, the professor refutes these three strongly.

　　Firstly, the listening argues that the reason why the report had no photo but only draft drawings lied in two aspects. First, the photography technology at that time was not as advanced as it is now. As the imaging techniques was not good, the quality of the photos was low. In addition, when the experiment was conducted, it was cloudy; in such condition to capture the image of a flying plane was too difficult.

　　Secondly, the reading claims the design of Whitehead’s plane that only had one wing was not logical, for the plane usually had two or three wings at that time. However, the professor disagrees. In the recent, some researchers have made a copy of Whitehead’s plane based on his design diagram. They tested the copy planes four times, and each of them was successful.

　　Finally, the reading suggests that Whitehead had produced many engines and sold them to several aircraft builders, but in fact none of those engines used in planes had ever succeeded, illustrating that Whitehead had not successfully tested his plane. But the professor argues the problem that those engines did not work could not be blamed to Whitehead. It was because the technology was not so developed at that time and aircraft builders knew little about designing planes. The fact that there were people buying Whitehead’s engines actually proved that his design had no problem.

　　推荐阅读：

　　托福报一个班大概得多少钱？

　　托福网络培训授课哪个好？

　　新东方托福网络课程多少钱？