在SAT阅读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。今天我们主要给大家介绍两个词条,分别是Sonar和Dolphins。
1,Sonar
Sonar is a technique that uses sound propagation 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,Dolphins
Dolphins 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。海豚被认为是自然界智商最高的动物之一。因其友善的外表和貌似活泼的天性,被看作人类的好友。
以上就是我们今天为大家介绍的SAT阅读中的常见文化词条Sonar和Dolphins,也就是声纳和海豚,如果以后在SAT阅读中碰到相关知识,我想可以帮助大家正确理解文章内容。
一个人吃饭对健康不好
国际英语资讯:U.S. to press allies on burden sharing at NATO summit in London
国内英语资讯:Chinese vice premier stresses improving AIDS prevention, treatment
体坛英语资讯:Three elite Kenyan runners suspended for doping
体坛英语资讯:Frankfurt overpower resilient Liege 2-1 in UEFA Europa League
国际英语资讯:Poll predicts 68-seat majority for Conservatives ahead of key UK election
国内英语资讯:Xi stresses cultivating new type of military personnel
国内英语资讯:China-made detecting aircraft for remote sensing delivered
娱乐英语资讯:Aussie retailer locked in legal battle with U.S. rap giant Jay Z over trademark infringement
国内英语资讯:China to further improve business environment by focusing on addressing market concerns
调查显示:英国也讲究郎“财”女貌
葡萄的健康益处
Different Types of Schools 不同类型的学校
国内英语资讯:China plans new meteorological satellites
国际英语资讯:Turkey to deport 11 French IS suspects: minister
体坛英语资讯:DPR Korea lifts womens soccer title, China cruises to womens basketball victory
为什么有了小孩就意味着搬家?
国内英语资讯:China issues guideline for high-quality trade development
国际英语资讯:Possible radioactive water leak at Japans crisis hit Fukushima nuke plant
欧“智能1号”飞船成功撞月
体坛英语资讯:Badminton court features both ends of career at military games
全球首例:吸电子烟吸到做手术,双肺移植
咖啡真的会导致焦虑吗?
国内英语资讯:China slams U.S. warships trespassing in South China Sea
国内英语资讯:Chinese State Councilor meets Vietnamese senior diplomat
国际英语资讯:Japanese govt may include more part-time workers in pension system
I Love My Country 我爱自己的国家
体坛英语资讯:Indonesia awarded right to host 2021 FIFA U20 World Cup
体坛英语资讯:Los Angeles FC coach Bradley wins 2019 MLS Coach of the Year
国际英语资讯:31 protesters killed in anti-govt demonstrations over past 3 days in Iraq: statement
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |