英语专业四级考试指南 test 8

Airplane Engines In 1945, a new type of airplane engine was invented. It was much lighter and more powerful than earlier engines, and enabled warplanes to fly faster and higher than ever. This type of engine was called the jet engine because it below

Can't She Type?

Lesson 38 Text A Can't She Type? The well-known banker, T. J. Ellington, was at one time in his younger days the manager of a New York office. His secretary had been with him for many years, and knew

美国英语听力80篇1 Lesson07

[00:04.57]Excitement fills the early morning air as you arrive at learn to recognize and name each part of the parachute. [00:19.17]You also learn what each part does. [00:22.05]The excitement builds as your teacher describes each stetp it of the jum

7-12 美国航空航天局成功试飞超高音速喷气机

NASA Successfully Tests Hypersonic 1 Jet Three years after its first test flight ended in an explosion, NASA on March 27 successfully launched an experimental jet that the agency believes reached a re

听广告学英语-Mitsubishi GDI Engine三菱汽车引擎

听广告学英语:Mitsubishi GDI Engine三菱汽车引擎 Mitsubishi GDI 三菱汽车引擎 原文 It's the GDI, the engine technology of tomorrow is already being driven today. Mitsubishi's GDI engine produces more power, reduces fuel consumption, and emits less carb

Lesson 86 What's Your Blood Type?

Bella: What's your blood type, Luke? Luke: It's A, I think. Why do you ask? Bella: Well, mine's B. Luke: So? Bella: They say people with A blood type get along very well with those with B blood type. Luke: Really? 你是什么血型? 贝拉：卢克，

背诵为王 第 一 册 第 34 课

34 Buying Books on the Internet It's easy to order books from the Internet. There are several companies that ship books to customers in China. Just decide which company you would like to use and type that company's name into the search engine. The co

美国动力公司研发提升五成油效对置活塞二冲程发动机

美国动力公司研发提升五成油效对置活塞二冲程发动机 This little engine looks like it has only three pistons, but in fact, it has six, sharing only three cylinders. 这台小身材引擎看起来只有3个活塞,但事实上却有

美国英语听力80篇3 Lesson45

[00:07.58]Igor Sikorsky was born in the city of Kiev, Russia; on May 25, 1889. [00:16.12]His mother was a doctor. [00:15.12]His father was a professor of psychology. [00:18.59]Igor became interested in science when he was very young. [00:23.82]He was

英语听力文摘 English Digest 587、气泵上的辛烷值是什么意思？

What Do Octane Numbers Mean? At the gas pump, you have a choice of octane numbers. 87? 93? Whats the difference? To explain octane numbers, lets take an imaginative leap into the internal combustion engine of a car. Inside the cylinders are combustio

365个英语简短小故事-138. Body in a Barrel (1)

George Gobel thinks that he might have helped dump his own sisters body. George told police that recently his brother-in-law Russell had asked him to help move a big metal barrel out of his house. Ill buy you a case of Bud, Russell promised. The barr

知性英语－DIFFERENT TYPE OF TEA

SSS 2009-03-16

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. On March 11th, Interior Secretary Ken Salazar called for a moonshot for energy independence. Hes set up a task force to look into the large-scale product

SSS 2010-07-06

Die-hard advocates of alternate energy might fantasize about cars that could one day run on water. But scientists in India have gone a step further. Theyve mathematically modeled an engine that should allow a motorcycle to run on aircompressed air, t

2007年VOA标准英语-Internal Report Faults Ex-CIA Director's Counte

By Gary Thomas Washington 22 August 2007 The Central Intelligence Agency has released a report sharply critical of the CIA's senior leadership in the years and months leading up to the terrorist attacks of September 11, 2001. As VOA correspondent Gar

新型内燃机效率提高50%

This Internal Combustion Engine is 50% More Efficient 新型内燃机效率提高50% Internal combustion engines in cars may be on their way out, but experts agree it will take a few decades before electric-powered vehicles become dominant. Meanwhile

VOA常速英语2007年-Could Pakistan's Internal Unrest Pose Wider Dan

By Ravi Khanna Washington 09 November 2007 The current political turmoil in Pakistan has raised concerns in Washington that the Pakistani government is no longer focused on battling Islamic militants and it is making the country an even safer haven f

科学家将污染物变成打印机墨水

Anirudh Sharma doesn't just want to pull harmful carbon from the air. He wants to offer a cheaper alternative to the exorbitant costs of ordinary printer ink. 阿尼鲁德夏尔马不仅想除掉空气中的有害炭物质，还希望创造一种更便

学个词 Learn a Word-VOA英语教学 2824 internal

今天我们要学的词是 internal. Internal 形容词，内部的。Britain's MI5 has begun an internal review of how it handled intelligence on the Manchester suicide bomber. 英国军情五处开始展开内部审查，看军情五处对所掌握的

美国国家公共电台 NPR As More Electric Cars Arrive, What's The Future For Gas-Powered Engines?

SCOTT SIMON, HOST: The Democrats' proposed Green New Deal calls for America to eliminate greenhouse gas emissions from U.S. transportation, an ambitious goal that would require - among many other things - phasing out cars that run on gasoline. That m