时间:2018-12-24 作者:英语课 分类:Scientific American(五)月


英语课

   The patato family island kills a million people in a mass imigration. The patatoes were destroyed by L. Calls by the water infested 1. Now we know exactly which steam of the water did the dirty work. Researchers analyzed 2 the dry patato leaves well over a century old from Ireland as well as y epic 3 North America. They were able to sequence the d of 11 different strands 4 of f and none to compare these oldest specimens 5 to 15 modern ones. The conclusion a strange c one  is responsible for the Iresh great famine. The work is in the general e-life. A strange code US one has previously 6 been adopted for the cold bread and two s are closedly related. E one held ways during the 19th century. But with the introduction of new kinds of potatoes in the 20th century, US one began to dominate. Similar work with other preserved plant specimens could help trace the evolutionary 7 history about the p and assist the on-going effort to keep our stable crops disease free.


  Thanks for the minute for Scientific American 60-second science. I’m Sophie Bushwake.

1 infested
adj.为患的,大批滋生的(常与with搭配)v.害虫、野兽大批出没于( infest的过去式和过去分词 );遍布于
  • The kitchen was infested with ants. 厨房里到处是蚂蚁。
  • The apartments were infested with rats and roaches. 公寓里面到处都是老鼠和蟑螂。
2 analyzed
v.分析( analyze的过去式和过去分词 );分解;解释;对…进行心理分析
  • The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
  • The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程,因为对他来说,爱是个不可分析的迷。 来自《简明英汉词典》
3 epic
n.史诗,叙事诗;adj.史诗般的,壮丽的
  • I gave up my epic and wrote this little tale instead.我放弃了写叙事诗,而写了这个小故事。
  • They held a banquet of epic proportions.他们举行了盛大的宴会。
4 strands
n.(线、绳、金属线、毛发等的)股( strand的名词复数 );缕;海洋、湖或河的)岸;(观点、计划、故事等的)部份v.使滞留,使搁浅( strand的第三人称单数 )
  • Twist a length of rope from strands of hemp. 用几股麻搓成了一段绳子。 来自《简明英汉词典》
  • She laced strands into a braid. 她把几股线编织成一根穗带。 来自《简明英汉词典》
5 specimens
n.样品( specimen的名词复数 );范例;(化验的)抽样;某种类型的人
  • Astronauts have brought back specimens of rock from the moon. 宇航员从月球带回了岩石标本。
  • The traveler brought back some specimens of the rocks from the mountains. 那位旅行者从山上带回了一些岩石标本。 来自《简明英汉词典》
6 previously
adv.以前,先前(地)
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
7 evolutionary
adj.进化的;演化的,演变的;[生]进化论的
  • Life has its own evolutionary process.生命有其自身的进化过程。
  • These are fascinating questions to be resolved by the evolutionary studies of plants.这些十分吸引人的问题将在研究植物进化过程中得以解决。
学英语单词
0874
acrrospiroma
aesthetases
ambient networking
an angle of incidence
arithmetic frequency scale
atmospherics
automatic production
Barkhera
Bora Bora
Burpies
cd-xes
centrilobular
chrysopal
church organ
clearance loading gage
cross disking
crosslinked polyester
curly maple
cyber-school
DDVF (dimethyl-dichlorovinylphosphate)
deep volar arch
defect of eyebrow
derating curve
dictamnolid
DLEUROTOMARIOIDEA
dodgerblues
doubletree
dulias
dwight lyman moodies
environment contamination
fair sex
feed inlet
fibrae arcuatae externae dorsales
flap extraction of cataract
glass tube pressure gauge
glucosephosphate
Gujranwala Division
Haeju-man
handybilly
heliotropian
hemicorporeal
hermetic sealing
high-voltage switch
hot trim
hydrous bucholzite (hydrobucholzite)
i-peinted
ice drink
induced labour
iraggic
jamstec
kindermuseum
Lascari
latent defect
luminol
M'F. R.
main and by-product production
malinski
manganese copper alloys
mechanical pressure recorder
Mobert
multicolor Nanking brocade
museumwide
Nephroselmis
newbies
nimbility
nonmarine
nonmultiplicative
normatron
Numto Uval
option charge
overprioritizing
Pan-American Highway
prometaphase movement
property information system
prororoca
rastle
revivor
Ribostamin
rivalty
roquin
RSLD
schiafino
Schultze's placenta
sea water science
sialism
spiral scale
stab(punctured)
susceptibility to failure
tabular cell
thermoplastic welding strip
thin skinned ingot
trampler
treaty of brest-litovsk
tsung
Turbotville
twospeed axle
uncontent
Urban Cowboys
ventilated supercavitating propeller
walking dragline excavator