SAT阅读中与文化相关单词总结.docx

SAT阅读中与文化相关单词总结SAT阅读是整个考试中的一个难点，同学们在备考SAT阅读题目中，一定要针对性的复习，多总结，多练习，词汇是提高SAT阅读水平的前提，下面教育小编给同学们总结一下SAT阅读题目中与文化相关的单词。在SAT阅读题目中我们常常会碰到一些常见的文化词条，有时候对这些知识不熟悉，会影响我们对整篇文章的理解，所以了解一些专有名词会提高我们的SAT阅读能力。有助于大家的SAT阅读练习。建议大家最好参加一些SAT阅读培训。今天我们主要给大家介绍两个词条，分别是Sonar和Dolphins。1，SonarSonar is a technique that uses sound propagation (usually underwater) to navigate, communicate or to detect other vessels. Sonar may be used as a means of acoustic location. The term sonar is also used for the equipment used to generate and receive the sound. The frequencies used in sonar systems vary from infrasonic to ultrasonic.声纳一种利用水下声音传播来导航，联络或侦查其他船只的技术。它可用于声音定位。这个术语还指产生和接收声波的设备。声纳所使用的频率从次声到超声不等。2，DolphinsDolphins are marine mammals that are closely related to whales and porpoises. There are almost forty species of dolphin in seventeen genera. They vary in size from 1.2 meters and 40 kilograms, up to 9.5 m and 10 ton. They are found worldwide, mostly in the shallower seas of the continental shelves, and are carnivores, mostly eating fish and squid. Dolphins are considered to be amongst the most intelligent of animals and their often friendly appearance and seemingly playful attitude have made them popular in human culture.海豚一种与鲸和钝吻海豚很接近的海洋哺乳动物，包括17属近40种。海豚体型差异大，从身长1.2米体重40千克到身长9.5米体重10吨不等。海豚遍布世界各地，主要在浅海大陆架活动。属食肉动物，主要食物是鱼类和鱿鱼。海