写错了俩大句，八组词，好多

One reason oceanographers analyze the sediment on the ocean floor is to see how long terms changes in earth temperature have affected the depth of the ocean  by analyzing remains of sea animals  in old layers of ocean sediment  oceanographers can determine the  depth of  the ocean in the past  they have  analyzed hundred s of such  layers  including some from coldest period of earth’s  history  the ice ages  what  they found is that during the ice ages the  amounts of water in the oceans decreased   water  levels of the ocean dropped   by 400hundred feet  water from ocean evaporated  and  became frozen in continental glaciers  so it didn’t drain  back into the ocean when the temperature eventually rose again  the glaciers melted and  the ocean returned to the formal depth  analysis of sedimentary data  indicates the periods of glaciers  freezing  and melting occurred  in regular cycles of   20  40 100 th years oceanographers are interested in history of  see water level  because they hoped to use this historical data in order to predict possible effect  that global warming could  have on sea water level  if industrial pollutants are capable of heating global temperatures to the point that glaciers begin to melt it is urgent for us to know precisely how high sea levels  will rise as a result        ocean篇

Not long ago  some of you may  read  about a  team of mountain climbing  scientists who  help to recalculate the elevation of the highest  mountain in the world  mt everest  of course  the elevation of mountain was determined many years ago using traditional  surveying methods
. ?# t- {7 D. ~But these scientists wanted to make more precise management  using new method  that takes   tage of recent advances in technology it is called   global  positioning  system
9 ?# @9 q9 {0 hThe global position system uses 24  satellites that circle the earth  each satellite is constantly sending signals  and each signal contains important information that  can be use to determine   and in order to use this system to calculate  mt everest  elevatiom  scientists needed to put special receiver  on its summit  to receive signals from the satellites  the problem with this is that in the past  the receiver is heavy for climbers to carry  and these recevier have been reduced  the size  and weight of hang held telephone so climbers were able to take the top of e   and  from there  to access the satellite system  allow to determine  the precise elevation  and it turns out  that famous peak  is actually a few feet  higher than was previously   thought

环境第五篇  感觉  单词不过关   加油中

Our village is quite different from what it used to be now7 l  Y% @# P4 ^% k9 t; @9 ?& m

) G8 n( i$ T3 _! w/ hJust a little more than ten years ago our village was such small quiet place
; }7 b/ {+ B* F/ p+ J
3 X: T7 m1 I+ f1 w$ I1 o. SThe houses was small and mean
8 `& W) c  a+ H/ T" z$ q0 H9 l1 z& L: F6 h2 f# k1 n1 f
The streets were quite narrow and winding , h! @' K- Z# i# Y4 Q+ K$ k- i
0 Q9 i6 m# ~; f( C% h& y, d: ]" J
There were few people in the streets and shop& j7 _- U3 K' l. z) V: @

  i+ X7 F' J3 U' n+ y7 x! TNow many changes occurr in our small city9 F* O+ Q4 P7 C! x3 }: r
" M' Z1 C$ }! d; h
Looking in every derections from the center of town  , one  sees  a long succession of  imposing  building
5 S# W1 @$ v) ~' ~% F' M/ ?
7 I4 _: G" e- U- e. g0 bThe streets whether short or long are spacious  straight  and well-shaded
& _# u2 {* Z3 u& Z& i2 R3 u  G! Z; x9 h2 l- P/ l1 O  Y
Many people can be found here and there  hurrying  noisy   and well- dressed! s" a% @0 L1 d+ h# V, K3 x* Y
1 T/ {  R7 b5 v3 Z. W' }1 q4 v
From the village with clusters of shaddy houses in the past , our hometown has eventually tranfered  into a big city  ,  cheerful  colorful and more prosperous
) r6 m  G- h6 l6 z. A6 h这是我接受义务教育以来  遇到最好的英语老师   给我的英语写作指导     悲哀啊 ，   是他让我明白 作文最少言之有物             感谢中

Scientists are always on the look out for alternity sounces of energy today we are going to discuss one that so plentiful thay say supply more energy than all the coal and oil in the world it’s found in gas hadrate  and believe it or not thatis kind of ice  * Z% P2 V* D9 n+ n; Y! T0 G) W
Thatis right water in this ice was way down the earth’s  surface when it eas frozen so it was under a lot of pressure  and trapped insided the crystals of ice are individual molecules of methane that’s what ‘s in natural gas
' _1 d" z" E6 ]  @% l6 Q5 A  XAll thismakes gas hadrate pretty stange stuff if you touch a match to a piece it ll burst into flame
5 F& h7 ]) O" RAnd when geologists bring a chunk of it up to study a normal weather pressure and temperature gs hadrate begins to hiss and bubble  and in than  half od hour  the ice melts  and the methane inside escapes  into the air  now as you might guess that can make gsa hadrate a kind of hard for miners to handle  there is a problem of where is located …… and up to a mile down
7 W0 v9 W+ h+ s' W* U1 zEnvironmentalists warn that mining it could even be disastrous  offshore drilling could allow seawater to seep down into the huge deposits and release tons of methane upinto the atmosphere  and methane  our listeners may recall    is a greenhouse gas that could  worsen the problem of gobal warming  so gas  hydrate may offer some interesting possibilities but with all these drawbacks  im not going to hold my breath waiting for it to fuel my furnace
6 l6 n; y7 p+ {环境  第九感觉很难

不过 今天听了   andy    讲的连读情况      感觉很有道理

红三角   两阅读

拜托谁告诉我一下小马哥的听力分类在哪下的呀，还要有文本的~~~~~~~
" U# U  D7 V% L7 o7 w4 p# _拜托，拜托~~~~~~~

听力课堂