单词：helium thermometer
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INTRODUCTION TO ACT I Today on TUNING IN THE U.S.A., WE ARE AT THE Stewart home. Grandpa is watching television with Robbies friend Alexandra Pappas. She is there because she is waiting to meet Robbie when he comes home from school. Suddenly she feel
欢乐美语
Many professions have their own words and expressions. This is true for the medical profession. Doctors use many technical terms that most people do not understand. But there are also expressions we use every day to tell about a persons health. Let m
2011年VOA慢速英语(一)月
25.Where am I? What’s happened? 26.Good morning, Marco. Are you feeling better now? 27.I’ve got the most terrible headache. I think I must have flu or something. Have you got a thermometer? I ough
华尔街高级英语
A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h
英语小短文
This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. One of the problems with large-scale solar power plants is that they require a huge amount of space. To rise above that problem Israeli researchers rece
Scientific American(三)月
His dad liked to fly balloons. His dad bought big balloons and filled them with helium. Helium is a gas. It is a gas that makes balloons float into the sky. One day his dad brought home a new balloon. He took it out of the box. He took it outside. He
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When a child feels sick, one of the first things a parent does is reach for a thermometer. That common reaction got one man thinking. Inder Singh is a health policy expert. He wondered what if the thermometer, in addition to measuring body temperatur
2018年VOA慢速英语(二)月
1. Five people are dead after an unsuccessful emergency landing in Sanford, Florida, setting two houses on fire. The husband of a top NASCAR official and a company pilot are among the dead. An adult and two children who were in their homes were also
美联社新闻一分钟2007
The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into
英语小短文
必备知识4:一些必要的词根(stems) -anthro-,-anthropo- human anthropology -aster-,-astro-,-stellar- star asterisk -audi-,-audit- hear audience -auto- self autograph -bio- life biology -capit- head, chief capital, captain -ced-go, move,yield p
雅思英语
Temperature 温度 Temperature is how cold and how hot the outside air is. 温度是指外面空气的冷热程度。 It is measured by a thermometer. 可用温度计测量。 Also, people feel temperature with their bodies. 人们的身体也能感受
与美国小学生一起学英文第2册
His dad liked to fly balloons. His dad bought big balloons and filled them with helium. Helium is a gas. It is a gas that makes balloons float into the sky. One day his dad brought home a new balloon. He took it out of the box. He took it outside. He
英语第1级听力-English Level 1
56 自然原因导致夏季食物中毒比率偏高 DATE=6-12-01 TITLE=AGRICULTURE REPORT - Food Poisoning in Summer BYLINE=George Grow (Start at 59
科技之光
Questions 12-20 The elements other than hydrogen and helium exist In such small quantities that it is accurate to say that the universe somewhat more than 25 percent helium by weight and somewhat less than 25 percent hydrogen. Astronomers have measur
托福英语
Let's begin by winding the timeline back 13.7 billion years, to the beginning of time. 让我们把时间往回拨到137亿年前，也就是时间的开始。 Around us, there's nothing. There's not even time or space. 四周是什么也没有，根本
TED演讲教育篇
I Would Pick More Daisies When the late Nadine Stair of Louisville, Kentucky, was 85 years old, she was asked what she would do if she had her life to live over again. I'd make more mistakes next time, she said. I'd relax. I would limber up. I would
英语美文
It's so..you know there are so many bullies,and it goes on so much 现在有很多恃强凌弱者 这种事情经常发生 and you know I think that, you should,especially if you are like a bystander. 我觉得，有些人应该， 特别是如果你就
艾伦脱口秀
Over the lights of sunset and vine We're floating away From the fortune and fame And your lips are mine They're raspberry wine Your body's a map I will follow into the sky Cause what you got Is all that I want It's all that I want And still that's no
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