欢迎来到上海新航道官网!英语高能高分,就上新航道!

4008-125-888

托福TPO综合写作32文本及PDF下载

2016年05月11日 04:26来源:上海新航道作者:上海管理员

摘要:

托福TPO综合写作32文本及PDF下载

托福TPO32综合写作 Reading Part:

Starting in the 1960s and continuing until the 1980s, sailors in Russian submarines patrolling the North Alantic and Arctic Ocean would occasionally hear strange sounds. These underwater noises reminded the submarine crews of frog croaks, so they called the sounds “quackers” (from the Russian word for frog sounds). The sources of the sound seemed to be moving with great speed and agility; however, the submarines’ sonar (a method of detecting objects underwater) was unable to detect any solid moving objects in the area. There are several theories about what might have caused the odd sounds.

The first theory suggests that the strange noises were actually the calls of male and female ocra whales during a courtship ritual. Orca whales are known to inhabit the areas where the submarines were picking up the bizarre noises. Orcas have been studied extensively, and the sounds they make when trying to attract a male are similar to those that the submarines were detecting.

A second idea is that the sounds were caused by giant squid. Giant squids are gaint marine invertebrates that live deep in the ocean and prey on large fish. They are difficult to detect by sonar because they have soft bodies with no skeleton. Not much is known about giant squid

behavior, but their complex brains suggest they are intelligent animals. It is possible they have the ability to emit sound, and perhaps they approached the submarines out of curiosity.

A third theory suggests the Russian submarines were picking up stray sounds from some military technology, like another country’s submarines that were secretly patrolling the area. Perhaps the foreign submarines did not register on sonar because they were using a kind of technology specifically designed to make them undetectable by sonar. The strange froglike sounds may have been emitted by the foreign submarines unintentionally.

 

托福TPO32综合写作 Listening Part:

Now listen to part of a lecture on the topic you just read about.

Female professor: Quackers are certainly a very strange phenomenon. Experts still debate what the source of the sound was. No one can be sure exactly what caused them. But these experts cite certain problems with all of the theories that you just read about. Here are a few of the arguments that they made.

First, the idea that the sounds were caused by Orca whales seems plausible at first but is ultimately highly unlikely. It’s that there are Orca populations in the general areas that the Russian submarines were patrolling. But Orca whales mostly live near the surface of the water. The submarines typically remain deep in the ocean and should not have been able to hear the whale sounds from near the surface. Also the Orca whales would have been detected by the Russian sonar if they were nearby.

Giant squid may be a better candidate but one critical fact speaks against this squid theory as well. Russian submarines first detected quacker sound in the 1960s and reports of them continued for about two decades. But the sounds disappeared entirely by the 1980s. However, as far as we know, squid have always lived in the ocean where the submarines were patrolling and continue to live there today. If these were squid sound, there would be no reason to suddenly start hearing them in one decade and then suddenly stop hearing them twenty years later.

Third, the idea that the quackers were caused by a secret submarine from another country does not hold up. The sources of the sound appear to move around and change direction very quickly. Submarines cannot move or change direction that quickly. Also all submarines make some engine noise. But no such noise accompanied the quackers. Even today, we don’t have the technology to build submarines that are that fast and have engines that are that silent. Summarize the points made in the lecture, being sure to explain how they challenge the specific theories presented in the reading passage.

 

托福TPO32综合写作题目 Question:

Summarize the points made in the lecture, being sure to explain how they challenge the specific theories presented in the reading passage.

 

更多托福TPO写作 查看,请移步:http://sh.xhd.cn/toefl/tpoxiezuo/

想要下载托福TPO1-32综合写作 的同学,请提交“姓名+电话+邮箱”,我们将于15个小时内发送给您!

请加sunny老师(微信号:shnc_2018

百人留学备考群,名师答疑,助教监督,分享最新资讯,领取独家资料。扫码免费加入

免费资料领取

免责声明
1、如转载本网原创文章,请表明出处;
2、本网转载媒体稿件旨在传播更多有益信息,并不代表同意该观点,本网不承担稿件侵权行为的连带责任;
3、如本网转载稿、资料分享涉及版权等问题,请作者见稿后速与新航道联系(电话:021-64380066),我们会第一时间删除。

免费在线模考

姓名:

电话:

立即测试

制作:每每

  • 徐汇校区
  • 人广校区
  • 地址:徐汇区裕德路126路

    乘车路线:地铁1、4号线上海体育馆、3号9号线宜山路站、11号线上海游泳馆站

  • 地址:黄浦区南京西路338号天安中心22楼

    乘车路线:地铁1、2、8号线人民广场站

  • 微信公众号
  • 微信社群