英语听力：探索发现 科学新发现：我们的大气层-19
时间：2018-12-03 作者：英语课 分类：探索与发现2014年
英语课
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 marsh 1 mellow 2 is no longer held together by higher pressure. air bubbles inside it expand, causing the stponge cande to blow outwards 3 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 vessel 4.
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 molecules 5 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
- 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
- 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
- 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。