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A lot of people in united states are coffee drinkers over the few years a trend has been developing to introduce   premium specially blends    coffees know as gourmet  coffees  into the American market * K3 l: s7 j# M- K4 E# @! J4 Z$ B: Q
Boston seems to have been the birthplace of  this trend in fact major gourmet coffee merchants from mother city like   s   sisigo  came in to boston  where today they are  engage in  the kind of coffee war  with boston merchants  they are all competing  for  a significant share of gourmet coffee market 2 U) i! t% W0 r, F. u# K' k4 o
Surprisingly  this competition among these  leading gourmet coffee bussness will not hurt any of them experts predict that gourmet coffee market in the united states is groeing and will continue grow  to the point gourmet coffee   will soon capture  half of what is  now is a  1million dollar market and will be 8 m d m  by 1999* w' }7 e$ w- e- U4 N
Studies have shown that  the coffee drinker can convert gourmet  coffee  seldom  go back  regular brands the supermarket  as a result  these brands will be the real   loser in the gourmet coofee competition / Y6 C' _) X6 ~2 U6 s! \
这篇不难  但做的不好   汗

满认真的，表扬一个

谢谢  兄台支持

妈的  今天有种 莫名的不想坚持  想推两天  ，       不坚持全完了    我十分了解自己   以后更不可能坚持    咬住啊     我一定要在今天完成   天文类

Located at the nasa research center in iowa is a 5000 gallon vat of water ,and inside the tank is underwater  treadmill   designed  by  d e  engineer , for  four year  newman observe scuba drivers as they simulated   walking on the moon and on mars on her underwater moving belt  she wanted todiscover  how the gravity of the moon and the  mar would affect human’ s movement ,
' P' w5 e+ ^2 a2 l9 gTo do this newman attached weights to the drivers and then lower them into  the tank and onto the treadmill this weights  were carefully adjusted so that the drivers can experience underwater the gravity of the moon and the mars  asthey walked on the treadmill  newman can conclude that walking on the mas will probably be easier than walking on the moon  the moon has lessgravity than the mas does so at the lunar  gravity  the driver struggled to keep balance and walked awkwardly  but at he martain gravity the driver has greater traction and stability and could easily  adjust to a   pace of  15 miles per hour  as newman  gradually increased the speed pf a  treadmill  the driver took  longer  graceful strides untill they  comfortably settled into  the even quikerpace  newman also know it that at the martian gravity  the driver neded less oxygen / @0 |3 Z) Y( p6 m+ |. u( ~
The data newman collected will help future desian of mar sps suit  compared to lunar space s martain s pwill require smaller air tanks   and to allow for freeer movement  the elbow and kees of space suit will  also be altered   
+ E( ~/ E; m) K8 z6 W8 d  坚持下来的 比较难

晕  刚好一个小时  要跟读  多下

加油~~

Astronomers
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Most people think of  astr as a people spend time in cold observetoer peering their telescope every night  in fact an  astr only spended most of  his  or her time  ananlying data  and may only be at  the telescope  for a few weeks  a year  some of astro work on peering   problems  and never use telescope at all
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You might not kown how rarely images are viewed directly  through  telescope  the most common way to observe the sky is to photograph them  the process is very simple  fisrt   a photographic  plate is coated with a light-sensitive  material  the place is positioned so the images is received by telescope is recorded on it  and then the image can be devopled enlarged and published  so many people can stude it
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Because most astr object s is very romote  the light we receive from them is rather feeble- ~( k  _' S/ k: E- s
By using a telescope as a camera  long time exposures can be made in this way object can be photographed   that are hundred times too faint  to be seen  by just looking through the telescope/ C# F1 e* `% V' |  I; n2 K
天文  第三篇     感觉是 善用推测  与 句子结构清楚的话  有助于提高听写准确性

我一定要完成任务    包括今天的

你的听力材料是哪里的？