资源简介

cardiologist who hired Kariko,said.
24.What was aoheration ofrikd Weissman
A.An accidental encounter.
C.Pursuit of the Nobel Prize.
B.Shared scientific interest.
D.Demand for photocopying
25.What can be infered from the underined s in paragrah3
的一
A.The research at the Upenn was rewarding.
C.The career made her psychologically weak.
B.She was fired because of her casual attitude.
D.She didn't get the recognition she deserved.
26.How did Kariko react to her dismissal from UPenn
A.She criticized her lab colleagues.
B.She switched her career goal.
ob S
C.She stuck to her original belief.
D.She abandoned her research work
27.What's the author's purpose of writing this text
A.To inform readers of Kariko's latest research.
B.To reveal the fierce competition in universities.
C.To applaud the cooperation between scientists.
(H.2 8
D.To highlight a scientist's extraordinary quality.
c
Scientists have found something strange has been happening among sensitive bird species in the
Brazilian Amazon in recent years.Not only were the birds declining in number,but their bodies were
also shrinking()in size."We found that size was not only shrinking for those sensitive species-it
was deciining for everyone,"said researcher Vitek Jirinec of Louisiana State University.Jirinec's
findings are contained in a new study published in the journal Science Advances last Friday.
The study examined 77 species over a 40-year period,during which time the rainforest had
become warmer.It found they were rapidly evolving perhaps because smaller birds remove heat more
efficiently as they have more surface area in relation to volume.Brian Weeks of the University of
Michigan explained it this way:"You could imagine lots of little ice cubes()in a glass of water,
as opposed to one big ice cube,and the little ice cubes melt faster because smaller things have larger
surface area-to-volume ratios(),so they exchange heat more quickly."Weeks didn't work on this
particuiar study,but he did research the size of more than 50 species of birds in North America a few
years back.He also found that nearly all of them were shrinking decade by decade.
The two studies strengthen the idea that birds all over the planet,migratory or not,may be
changing shape due to a warming climate.Weeks said these sorts of changes should concern all of us.
"All around the world,people depend on natural plete natural systems provide more
economic benefits to humanity than the entirety of the world's GDP,so they matter to you whether or
not you know it,"Weeks said.Jirinec thought the timing of his paper's publication could not be more
fitting.The study came out on the same day as the conclusion of the UN climate change conference in
Glasgow.So those results really stressed the common consequences of the actions for the planet.
28.What was a cause of the birds becoming smaller in size
A.The decrease of birds'number.
B.The sensitiveness of birds.
D.The development of birds.
C.A warming climate.
29.How did Brian Weeks explain birds'getting rid of heat
B.By analyzing the data.
等阿，林件贝单
A.By example and comparison.
D.By observation and research
为9出2法编9p
C.By giving enough evidence.
英语试卷第4页（共8页）

展开更多......

收起↑