大学英语四级阅读选词填空模拟题及答案解析

第一篇之杨若古兰创作

Climate change has claimed its latest victim：Limacina

helicina，a planktonic，predatory(捕食的)sea snail that’s a

member of the taxonomic group more(36)__________ known as

sea butterflies．(The name is(37)__________ from the wing-like

lobes(叶瓣)the tiny creatures use to get around．)In a

study(38)__________ published in joumal Proceedings of the

Royal Society B，a group of scientists from the National Oceanic

and Atmospheric Administration (NOAA)and Oregon State

University have found that the Pacific Ocean’s decreasing pH—its acidifying(酸化)，in other words-is dissolving L．helicina’s

thin shells．

The researchers collected sea butterfly(39)__________ from

13 sites along the Pacific coast(between Washington and southern

California，going over each with a scanning electron

microscope．More than half of the shells(53％)from onshore

individuals(40)__________ signs of “severe dissolution

damage，”while 24％of(41) __________ individuals suffered

dissolution damage．The study’s(42)__________ investigator,

Dr. Nina Bednarsek of NOAA，described the affected

L．helicina shells as having a texture not unlike “cauliflower” or “sandpaper．”

According to the paper，there was a “strong

positive(43)__________ ”between the proportion of sea

butterflies with severe shell dissolution damage and “the

percentage of undersaturated(未达到饱和的)water ” near the

ocean’s surface．The researchers conclude “shell dissolution

owing to(human．caused ocean(44)_________has doubled in

near shore habitats since pre．industrial conditions across this

region and is on track to triple by 2050，”a

truly(45)__________ prediction．Moreover, the broader

implications for ecosystem are unclear, as damaged shells make it

harder for L．helicina to fight infections，stay buoyant，and

protect themselves from predators．A. showed

B. recently

C. protected

D. commonly

E. derived

F. samples

G. offshore

H. principal I. noticed

J. correlation

K. encouraging

L. seaward

M. acidification

N. grim

O. pollution

词性归类

答案解析

第二篇

The social network will let users“mute”messages from other users on their timelines

without the muted person’s knowledge，thereby avoiding the(36)__________

process of having to unfollow(取消关注)，or put up with，your(37)__________talkative

IRL friends．Twitter rolled out new(38)__________to let users better manage the deluge(泛滥)of tweets they receive．

Users can now“mute”people they follow, removing those people’s tweets and

retweets from their own timelines．The muted person won’t know that he or she has

been(39)__________．It’s a stealthy way to read less content from certain users without

having to unfollow them．A person can easily be muted or(40)__________at

any time，Twitter said in a blog post．

“Mute gives you even more(41)__________over the content you see on Twitter by

letting you remove a user’s content from key parts of your Twitter experience，”the

company said．

Though Twitter had been experimenting with the feature in recent weeks，it announced that

muting will be(42)__________to all users of the company’s iOS and Android apps，as well

as the Twitter．com website．Some other Twitter applications，like TweetDeck，already allowed muting．

The feature is part of Twitter’s(43)__________strategy to make its service more

accessible to a wider range of people．Following a successful initial public offerin9，Twitter’s stock has tumbled in recent months as investors worry about the social

network’s(44)__________to attract new users．CEO Dick Costolo(45)__________that

Twitter would make changes to its interface this year to make it easier to understand and

manage．The company overhauled(完整检修)user profile pages in April as part of this

effort．

A. silenced

B. awkward

C. unmvted

D. feature

E. embarrassment

F. unfollowed

G.. control

H. extremely I. overall

J. vowed

K. generally

L. ability

M. accepted

N. available

O. characters

词性归类

答案解析

第三篇

The poll of 2,000 adults in England was(36)__________out as part of the government’s

drive to curb people’s drinking habits．

The campaign also stresses that a heavy drinking session is often(37)__________by an

unhealthy breakfast，which again helps to pile on the pounds．

The Know Your Limits campaign has in the past focused on other(38)__________0f

drinking，such as disease risk．

But to(39)__________with the focus on weight，the Depa Ihiient of Health carried out

research showing a regular beer drinker, who downed(喝)five pints a week or 250 over

the(40)__________of a year, packed away the same number of calories as someone eating 22

1 doughnuts over the space of 12 months．

It also revealed the average wine drinker consumed 2,000 calories each month．over