高翼

Located at the NASA research center in Iowa is 5000 gallon vat of water, and inside the tank is an underwater trade (treadmill) designed by David N., an airspace (aerospace)engineer. FOR forty(four) years ,Newman observed (scuba divers) as they simulated walking on the moon and Mars on her underwater moving build (belt), she wanted to discover how the gravity of moon and Mars would affect human movement .TO do this ,no one(Newman) attach (weights)to the divers and then lowered them into the tank and onto the treadmill.. These weights were carefully adjusted so the divers could experience underwater the gravity of the moon and the of Mars as they walked on the treadmill. Newman concluded that walking on the Mars will probably be easier than walking on the moon.
The moon has less gravity than the Mars does . so as(at) lunar gravity, the diver struggle to keep their balance and walk awkwardly. But at the Martian gravity, the diver had greater attraction (traction) and stability and could easily pay attention (adjust) to a pace of 1.5miles/h. As Newman gradually increased the speed of the treadmill, the diver takes a longer and graceful stride until they comfortably settle a even quicker pace. Newman also noted that the Martian gravity even make the diver need more (less) oxygen. The date (data) Newman collected will happened (help in) the future design of Martian spacesuit, compare to the lunar spacesuit, Martian spacesuit will require smaller air tanks, and to allow for free movement, the elbow and knee area of the space suit will also be offered (altered)

高翼

It’s great to see so many of you interested in the survival of the outer space. please excuse the camera, we will be video taped for the local TV station today I am going to talk about the basic aspect of survival: the space suit .when most of you imagine the work of astronaut ,probably the first thing come in mind ,right, well without space suit ,it will not be possible for us to survive in space, for example , outer space is an () there is no gravity and pressure ,without protection, the body will explode. What’s more , we cooked in the sun and freeze in the shade with the temperature range from 300 degrees above zero to ().The space suit that NASA has developed is truly a marble , this photo () here ,here is a life size image of a extra spacesuit worn by an astronaut , so the (). This part is the () .it is made of 7 extremely durable layers. This thin () protect against extreme temperature and radiation. Next was they called the bladder of oxygen .

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today i want to talk about the CTLgold rush of the 1858,which began when gold was discovered in F town of CF,in the canadian province of BC.by 1861.thousands of men have (flocked) to the region and hoping to struggle (strike) it rich.naturally as the town grew, supplies had be brought in,and  (this was done with mules).now the mules were quiet reliable but there were some drawbacks:for example , a mule carrying a heavy load could travel only 50 miles in a day.meaning that a typical trip in(into) C could take as long as 20 days .so as demand for supplies contined to grow.a group of merchants and (packers) decided to try a new approach.believe it or not ,they shipped in a herd of camels.i know that sound (sounds)strange but  camel trains  had been used quiet effectively during the C gold rush some ten years earlier.but the result in the C region wasn't quiet the same.in fact, it's a disaster, the camels couldn't carry the heavier load that the merchants expected them to .there two told (their two-toed feet) were perfect for the desert travel.but they weren't suit for C regular(rugged)mountain (terrain).to make matters worse,the mules became very edutated(agitated)  when(whenever) they came acrossed a camel  and that coused a lot of accidents on the treasurious(treacherous) mountain travel(trail).the mule packers went so far as to threatened the camel owners with the lost suit(lawsuit).but the reason of the merchants finally got rid of the camels,is beacause these animals simply weren't cut out for the job.

高翼

mule:骡子
flock v.蜂拥，n.羊群
eg. people flocked to the cinema to see a new film.
the rugged mountain terrain
rugged adj. 崎岖的，高低不平的
the mountan path is rugged and narrow.
terrain n.地形 地带
a jeep is ideal for driving over rough terrain.
agitated v.使激动，使心烦意乱
she was agitated by his sudden appearance at the party.
treacherous 背叛的 背信弃义的,危险的
he is treacherous to his friends.
lawsuit n. 控诉，诉讼
as we were poor , we lost the lawsuit.

高翼

eg.sally and Michael seem to be cut out for each other.

高翼

today we are going to continue our discussion of modern art.and talk about CS.CS has (been a part of ) many art movements.his(he's ) worked in pop art (cubism) and (conceptual art ).but he made his mark as a pioneer in computer art.even long before computer became popular. he was( puntching )cards and then feeding them into  the big mainframe computer in the O state University.in the begining he had to work without a model(monitor).so he was virtually creating the art in the dark.he even learnt computer programming.so he could experiment with this new tool.through the computer,S has been able to explore a new world of possibilities.for example , the computer enabled him to sculpt in three dimention.also he can see the sculpture from any angel(angle) and move it around and change the location of the light source.or he could copy them in different colors.over the years,S recieved (numerous grants) for various projects.this money allowed him to train students in computer graphics and animation techniques.and to advance the computer as a medium for artisits.even though he uses modern technology ,S still says （insists in ）he is creating art .he has always told his students to keep the issues of art on(in) focus.and not get  so(caught up ) in the technology that you forgot(forget) about the image.

高翼

1
he's 和his 的读音相同， 但是两者的差异很大。he's 可以是 he has 的缩写，常常会因为这个小词而破坏我们的听力感觉。
2
been a part of 也是很常见的一个小词组， 但是在这里没有听出来。多听……
3
cubism立体派
4
conceptual art 概念派艺术
5
punching cards and feeding them into the big mianframe computer

按键                         不断放入                            巨型电脑

高翼

7
monitor显示器
8
grants
拨款
9
get caught up 感兴趣干某事

流浪北国

lz一片全黑呐