英语听力：探索发现 科学新发现：我们的大气层-19

 scores of sciencse experiments on board the airship study the dramatic persure change.

"we call it punset for pingpang ball satelite, and it also be the first thing we do is to have cut the pingbang ball on air ,then your experiment goes inside. and simplist my favourite for etick, i grow many mush melon and it drop in the pingpang ball. seems satellite construction at its best and then we take them to the edge of the space."

in the thin air of the stratis here, the marsh¹ mellow² is no longer held together by higher pressure. air bubbles inside it expand, causing the stponge cande to blow outwards³ and first open the punset. 

just as the thin air is dangerous for marsh mellows,it can also affect flash and blood.contrary your popular belief, your blood on boil ,it is held in by your blood vessel⁴.

 

but any expose flash will swash out like the marsh mellow,and that around 26000 feet the air too thin to breath. there just aren't enough molecules⁵ in every lungue follow their. and starved of the oxygen ,your brain will begin to shut down.

 

you need exchange to call it get you, but the lack of pressure will get your first.

1 marsh   

n.沼泽，湿地

参考例句：

• There are a lot of frogs in the marsh.沼泽里有许多青蛙。
• I made my way slowly out of the marsh.我缓慢地走出这片沼泽地。

2 mellow   

adj.柔和的；熟透的；v.变柔和；(使)成熟

参考例句：

• These apples are mellow at this time of year.每年这时节，苹果就熟透了。
• The colours become mellow as the sun went down.当太阳落山时，色彩变得柔和了。

3 outwards   

adj.外面的，公开的，向外的；adv.向外；n.外形

参考例句：

• Does this door open inwards or outwards?这门朝里开还是朝外开？
• In lapping up a fur,they always put the inner side outwards.卷毛皮时，他们总是让内层朝外。

4 vessel   

n.船舶；容器，器皿；管，导管，血管

参考例句：

• The vessel is fully loaded with cargo for Shanghai.这艘船满载货物驶往上海。
• You should put the water into a vessel.你应该把水装入容器中。

5 molecules   

分子( molecule的名词复数 )

参考例句：

• The structure of molecules can be seen under an electron microscope. 分子的结构可在电子显微镜下观察到。
• Inside the reactor the large molecules are cracked into smaller molecules. 在反应堆里，大分子裂变为小分子。