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What is the sun? It’s a massive ball of gas and plasma 93 million miles away that’s been shining for four and a half billion years. It warms our planet and gives us light – and astronomers have been fascinated with it for hundreds of years.
Rob and Neil put on their s...

介绍： 公众号MissRui同步更新全文，欢迎关注！

What is the sun? It’s a massive ball of gas and plasma 93 million miles away that’s been shining for four and a half billion years. It warms our planet and gives us light – and astronomers have been fascinated with it for hundreds of years.
Rob and Neil put on their sunglasses to find out more about this special star and teach some related vocabulary. We promise you won’t be blinded with science!
This week's question:

How hot is the surface of the sun? Now I’ll help you out by telling you that the sun’s core – that’s the centre – is a blistering five million degrees Celsius. But how hot is the sun’s surface? Is it ...
a) 1.5 billion degrees Celsius
b) 1.5 million degrees Celsius
c) 5500 degrees Celsius
Listen to the programme to find out the answer.
Vocabulary
1.orbit轨道
circle around a bigger object, for example another planet or star

2.massive巨大的
very large and heavy

3.core核心
the central part of an object

4.energy能量
the ability of a physical object or process to work

5.matter物质
what something is made of: solid, liquid or gas

6.photosphere光球（层）
the surface of a star

7.come into being开始存在
be created

8.curtains for something绝望的处境，完蛋
the end

9.toasty暖烘烘的，温暖舒适的
comfortably warm

10.envelop包住，裹住
cover completely

Link:
http://www.bbc.co.uk/learningenglish/english/features/6-minute-english/ep-150409