时间:2019-01-07 作者:英语课 分类:六分钟英语


英语课
In 2017, European scientists plan to go on a very special space mission - landing on an asteroid 1. But why do they want to visit an asteroid and will there be space for Callum on the spacecraft?!
欧洲科学家计划于2017年进行一次航空任务—-降落在小行星上。他们为什么要探索小行星?小行星上有足够的空间为他们停留吗?
Yvonne: Hello, I’m Yvonne Archer 2 and this is 6 minute English. Today, we’re talking about a rather exciting space mission(航天任务) and with me is Callum Robertson. Hello!
Callum: Hello Yvonne. Wow! Do you think there'll be space for an extra passenger – for me - on that space mission?
Yvonne: Well, the spacecraft(宇宙飞船) won't leave until about 2017 – so anything can happen by then! But, before you start packing Callum, do you know anything about asteroids 3(小行星), Callum? I mean, I found out that there are millions of them travelling around our solar system.
Callum:Yeah... asteroids are - I suppose they're planets, I mean, big pieces of rock, maybe a few miles or a few kilometres wide - and they move around the sun in the same way that the earth moves around the sun.
Yvonne: Right, and in today's report we'll hear more about them. But we'll also come across(碰到,遇到,无意中发现) the term 'for analysis(分析,解释)'. Can you explain that for us, Callum?
Callum: Sure. If something is given to you 'for analysis', you go through the process of examining it - looking carefully at it to try to understand what it is or what it's made of.
Yvonne: Now, before we hear that report, let's give you that big question Callum. I've been scratching (刮伤)my head about this because you keep on getting them right! But anyway - according to scientists, when was the last time that an asteroid hit earth?
Was it a) 85 million years ago b) 65 million years ago or c) 45 million years
Callum:Well ummm… I'm not really old enough to remember this…
Yvonne: Really???
Callum: No, and it's going to be a complete guess. So I'm just going to go for the middle one; I'm going to go for 65 million years.
Yvonne:  Okay, well we'll find out the answer to that question at the end of the programme.
The space mission that's being worked on by European scientists and engineers is called Marco Polo. As the BBC's Christine McGourty's tells us about it, try to find the answer this two-part question: Where do the scientists hope to land and what do they want to bring back(带回来) to earth?
CHRISTINE MCGOURTY
The plan is to select a small asteroid -less than 1 kilometre across - and to send a spacecraft there. It would land and drill beneath the surface to collect a mixture of dust and rubble 4(粗石,碎石) to bring back to Earth for analysis.
Yvonne:  Callum, where do the scientists hope to land?
Callum:Well, they want to land on an asteroid but they haven't 'selected' – or chosen which one yet.
Yvonne: That's right – and they want to select an asteroid that's less than one kilometre wide – as the report said: less than one kilometre "across". And what do they hope to bring back to earth from the asteroid?
Callum: Well, rubbish really!
Yvonne: A load of old rubbish!
Callum: Well exactly! They said they'd like to bring back 'dust' and 'rubble' – so small, tiny pieces of the asteroid which they'll take from under the surface. So they'll dig down into the asteroid using a special drill, collect up(收集,搜集) some dust and rubbish and bring that back.
Yvonne:       Fantastic! And their analysis of the dust and rubble and rubbish should show the scientists what asteroids are made of. Interesting, but will it be useful for us to know about that here on earth? Hopefully, Christine has an answer for us in the next part of her report…
 
CHRISTINE MCGOURTY
Asteroids are debris(碎片,残骸) leftover 5 from the formation(构造)of the solar system(太阳系), around 4.6 billion years ago. Studying their pristine 6 (原来的,古时的,原始的)material should provide new insights(洞察力) into the ingredients of the early solar system and how planets like our own evolved(变体).
Yvonne:  So the Marco Polo space mission should help us understand more about what our solar system was made up of – it's ingredients. And scientists also hope to learn new information and get a better understanding about how planets like earth gradually changed and developed – how they evolved.
So Callum - what about all those really scary(恐怖的) stories about asteroids crashing and colliding(碰撞)with earth and killing 7 us – wiping us all out?
Callum: Well, there certainly have been some movies along that now. I think "Armageddon" and "Deep Impact" were two movies where there were some – some crazy schemes were developed to try and push the asteroids into a different path so they wouldn't hit the earth. But I don't know if that's really possible.
Yvonne: Well, let's hope that if it is possible, in real life, they will find a way how to
stop asteroids hitting us here on earth by March the 16th 2880.
Callum: March the 16th 2880?
Yvonne: Yep.
Callum: It's a very specific date, Yvonne! Do you know something?
Yvonne: Yes. Scientists believe that's when an asteroid of about 10 kilometres – which
is about seven miles wide – will actually hit earth.
Callum: Really? Wow!
Yvonne: Yeah. But we won't be here anyway, will we?
Callum: Well, I hope not!
 
Yvonne: But we must look after our planet for future generations, mustn't we?
Callum: Oh, of course.
Yvonne: Okay – now to that question: When was the last time that an asteroid hit earth?
a) 85 million years ago
b) 65 million years ago or
c) 45 million years
Callum: Well, I made a complete guess at 65 million years ago.
Yvonne: And once again, you were right Callum!
Callum: Really?
Yvonne: Yes.
Callum: Oh yes! Congratulations to me!
Yvonne: …Because that's when the dinosaurs 8 were all wiped out -by an asteroid it's
thought.
Callum: Ahh – okay.
Yvonne: But that's all we've got time for in today's programme. Do join us again next
time for more '6 minute English'.
C + Y: Goodbye!
(本文由在线英语听力室编辑整理)




点击收听单词发音收听单词发音  






1
asteroid
uo1yD
  
 


n.小行星;海盘车(动物)


参考例句:





Astronomers have yet to witness an asteroid impact with another planet.天文学家还没有目击过小行星撞击其它行星。
It's very unlikely that an asteroid will crash into Earth but the danger exists.小行星撞地球的可能性很小,但这样的危险还是存在的。












2
archer
KVxzP
  
 


n.射手,弓箭手


参考例句:





The archer strung his bow and aimed an arrow at the target.弓箭手拉紧弓弦将箭瞄准靶子。
The archer's shot was a perfect bull's-eye.射手的那一箭正中靶心。












3
asteroids
d02ebba086eb60b6155b94e12649ff84
  
 


n.小行星( asteroid的名词复数 );海盘车,海星


参考例句:





Asteroids,also known as "minor planets",are numerous in the outer space. 小行星,亦称为“小型行星”,在外太空中不计其数。
Most stars probably have their quota of planets, meteorids, comets, and asteroids. 多数恒星也许还拥有若干行星、流星、彗星和小行星。












4
rubble
8XjxP
  
 


n.(一堆)碎石,瓦砾


参考例句:





After the earthquake,it took months to clean up the rubble.地震后,花了数月才清理完瓦砾。
After the war many cities were full of rubble.战后许多城市到处可见颓垣残壁。












5
leftover
V97zC
  
 


n.剩货,残留物,剩饭;adj.残余的


参考例句:





These narrow roads are a leftover from the days of horse-drawn carriages.这些小道是从马车时代沿用下来的。
Wonder if that bakery lets us take leftover home.不知道那家糕饼店会不会让我们把卖剩的带回家。












6
pristine
5BQyC
  
 


adj.原来的,古时的,原始的,纯净的,无垢的


参考例句:





He wiped his fingers on his pristine handkerchief.他用他那块洁净的手帕擦手指。
He wasn't about to blemish that pristine record.他本不想去玷污那清白的过去。












7
killing
kpBziQ
  
 


n.巨额利润;突然赚大钱,发大财


参考例句:





Investors are set to make a killing from the sell-off.投资者准备清仓以便大赚一笔。
Last week my brother made a killing on Wall Street.上个周我兄弟在华尔街赚了一大笔。












8
dinosaurs
87f9c39b9e3f358174d58a584c2727b4
  
 


n.恐龙( dinosaur的名词复数 );守旧落伍的人,过时落后的东西


参考例句:





The brontosaurus was one of the largest of all dinosaurs. 雷龙是所有恐龙中最大的一种。 来自《简明英汉词典》
Dinosaurs have been extinct for millions of years. 恐龙绝种已有几百万年了。 来自《简明英汉词典》













n.小行星;海盘车(动物)
  • Astronomers have yet to witness an asteroid impact with another planet.天文学家还没有目击过小行星撞击其它行星。
  • It's very unlikely that an asteroid will crash into Earth but the danger exists.小行星撞地球的可能性很小,但这样的危险还是存在的。
n.射手,弓箭手
  • The archer strung his bow and aimed an arrow at the target.弓箭手拉紧弓弦将箭瞄准靶子。
  • The archer's shot was a perfect bull's-eye.射手的那一箭正中靶心。
n.小行星( asteroid的名词复数 );海盘车,海星
  • Asteroids,also known as "minor planets",are numerous in the outer space. 小行星,亦称为“小型行星”,在外太空中不计其数。
  • Most stars probably have their quota of planets, meteorids, comets, and asteroids. 多数恒星也许还拥有若干行星、流星、彗星和小行星。
n.(一堆)碎石,瓦砾
  • After the earthquake,it took months to clean up the rubble.地震后,花了数月才清理完瓦砾。
  • After the war many cities were full of rubble.战后许多城市到处可见颓垣残壁。
n.剩货,残留物,剩饭;adj.残余的
  • These narrow roads are a leftover from the days of horse-drawn carriages.这些小道是从马车时代沿用下来的。
  • Wonder if that bakery lets us take leftover home.不知道那家糕饼店会不会让我们把卖剩的带回家。
adj.原来的,古时的,原始的,纯净的,无垢的
  • He wiped his fingers on his pristine handkerchief.他用他那块洁净的手帕擦手指。
  • He wasn't about to blemish that pristine record.他本不想去玷污那清白的过去。
n.巨额利润;突然赚大钱,发大财
  • Investors are set to make a killing from the sell-off.投资者准备清仓以便大赚一笔。
  • Last week my brother made a killing on Wall Street.上个周我兄弟在华尔街赚了一大笔。
n.恐龙( dinosaur的名词复数 );守旧落伍的人,过时落后的东西
  • The brontosaurus was one of the largest of all dinosaurs. 雷龙是所有恐龙中最大的一种。 来自《简明英汉词典》
  • Dinosaurs have been extinct for millions of years. 恐龙绝种已有几百万年了。 来自《简明英汉词典》
学英语单词
Afr.
alber's projection
allobiocenose
Ammotragus lervia
assets leased to others
attachment effect
automatic program segmentation
backchecking
bacterial symbiont
Bacterium dispar
blunt trailing edge
Bombycilla
carbopol
carriage type doffer
china-burma-india
colonoileoscope
compound shoreline
constant dollar income
constructor operation
contact breaker arm
conventional navigation chart
convolvuloides
crooked alignment
crystal engineering
cut up wire shot
d.j.f.
delivery point
doctrine of necessity
duckert
durn tooting
egg coal
embalming room
estuance
figured-fabric loom
finite thin sheet
fire ordeal
flat rectangular element
flexing
fluorocitric acid
freight compartment
gengler
ginns
grain moths
haplogroups
histological chemistry
Ialibu, Mt.
ideal integer
image-sketch-relation conversion
impermeable foundation
indexed sequential file
infrared phosphor
initial task index
Inspection-district
interrupter switch
investment bond
kuchta
Laclede County
lateral stabilizer
longitudinal magnetoresistance
malleatory chorea
meromorphic curve
methyl linoleate
milli-grams
Murray, Gilbert
n-perfluoroheptane
nannoliths
nephesh
open phase protection
Oposim
overspraying
oxytocin(OXT)
pay into sth
permutational isomer
Perroncito's phenomenon, Perroncito's spirals
production planning subsystem
reciprocal space
reilluminates
relaxed oscillation
remote sensing film
rid oneself of
river rats
salvage cruiser
self-check function
simagre
snow plow train
take someone through something
takle
tallitot
team-taught
Text cursor
thirteeners
train dispatchers
us regal
Vampyromorpha
varietal yield test
velociment
white backed planthopper
wolfram ore
xerostomic
zaranthan
zonality