B
What weighs 3500 pounds(1600kg)and lived 60 million years ago?Are you thinking of
dinosaurs?Guess again!You don,t have to go to a museum to see these creatures.They are alive
and swimming in the warm coastal waters of Florida.
Manatees(海牛)have lived a peaceful existence in the warm waters of Florida for 60
million years.However,they are now an endangered species.This means that if humans don,t do
something to save them,they will soon go the way of dinosaurs.
Humans have made life very difficult for manatees.One big danger that humans have
introduced is the speedboat.Because manatees are mammals.they need to come to the surface to breathe about every 5 to 6 minutes.This means that they are in constant danger of being caught in the propellers(螺旋桨)of speedboats.And boating aceidents are the greatest cause of death for them.
Manatees are in extra danger when they are in their sleeping or“torpor”state.They still
have to come to the surface for the air,but sometimes they are too sleepy to avoid the danger of approaching boats.
Another danger for manatees is the pollution that humans produce.Due to human pollution,
a deadly plant called red tide had increased greatly in the Gulf of Mexico.The plant,or algae,
t11riVes(繁茂)on pollution.It wiped out nearly 20 percent of the total manatee population on
earth.
Humans can help to save manatees。The government has established boating speed limits to
give the manatees.a chance to escape approaching speedlsoats.Everyone can help by cutting
down on waste and pollution to protect the waters for the manatees.
One famous singer,Jimmy Buffet,has helped save the manatees.He co-founded the Save the Manatee Club(SMC).SMC had begun an adoption(收养)program for the manatees.For a fee,sponsors(资助者)can name a manatee.Donations are used to help protect the manatees and their habitat.
45.The manatee is the kind of animal that___________.
A.1ikes living in the cold waters of Florida B.will die out if not protected in time
C.call dive in the deep sea for hours D.is the biggest living animal on earth
46.Why is it dangerous for manatees to be in a torpor state?
A.Because they come to the snlface to breathe,and that is when they are hunted.
B.Because they eat deadly algae,and this makes them too sick to avoid danger.
C.Because they live in groups and therefore they are easily hurt by passing boats.
D.Because they are sleepy when they surface,so they can,t avoid approaching boats.
47.The death of the manatees is largely due to__________.
A.human hunting B.human pollution
C.speedboat accidents D.deadly plants
48.To help protect manatees,people should_________.
A.never go speed boating in their living habitat
B.keep the waters of Florida free from pollution
C.have manatess named by sponsors without a fee
D.wake manatees up from their torpor state
第二部分阅读理解(共25小题。第一节每小题2分,第二节每小题l分,i满分45分)
第一节阅凑下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在
答题卡上将该项涂黑。
A
WASHINGTON(Reuters)-People who drink two or more sweetened soft drinks a week have a much higher risk of pancreatic cancer(胰腺癌),an unusual but deadly cancer,researchers reported on Monday.
People who drank mostly fruit juice instead of sodas did not have the same risk,the study
of 60,000 people in Singapore found.
Sugar may be to blame but people who drink sweetened sodas regularly often have other
poor health habits,said Mark Pereira of the University of Minnesota,who led the study.
“The high levels of sugar in soft drinks may be increasing the level of insulin(胰岛素)in The body,which we think contributes to pancreatic cancer cell growth,”Pereira said in a statement.
Writing in the joumal Cancer Epidemiology,Biomarkers & Prevention,Pereira and colleagues
said they followed 60,524 men and women in the Singapore Chinese Health Study for l4 years.
Over that time,140 of the volunteers developed pancreatic cancer.Those who drank two or
more sweetened soft drinks a week had an 87 percent higher risk of being among those who got
pancreatic cancer.
Pereira said he believed the fndings would apply elsewhere。
“Singapore is a wcahhy country with excellent heahhcare.Favorite pastimes(消遣)are
eating and shopping,so the findings should apply to other western countries,”he said.
But Susan Mayne of the Yale Cancer Center at Yale University in Connecticut was cautious.
“Although this study found a risk,the finding was based on a relatively small number of
cases and it remains unclear whether it is a causal(因果的)connection or not。”said Mayne.
who serves on the board of the journal,which is published by the American Association for
Cancer Research.
Pancreatic cancer is one of the deadliest forms of cancer,with 230,000 cases globally.In
the United States,37,680 people are diagnosed with pancreatic cancer in a year and 34,290 die
of it.
4 1.According to the text,who is in control of the health study?
A.Mark Pereira. B.Scientists from Singapore.
C.Researchers in Yale. D.Susan Mayne.
42.We can infer from Pereira,s words that__.
A.the heahhcare in Singapore should be greatly improved
B.2 soft drinks a day are considered harmful to health
C.87 out of l40 volunteers developed pancreatic cancer
D.sugar might not be the only cause of pancreatic cancer
43.How does Susan seem to feel about the findings of the study?
A.Satisfied. B.Doubtful. C.Worried. D.Hopeful.
44.The best title of the text might be________.
A.The Deadliest Forms of Cancer B.Drink Fruit Juice Instead of Sodas
C.A Study in University of Minnesota D.Sugary Soft Drinks Lead to Cancer
第三节完形填空(共20小题;每小题l.5分,满分30分)
阅读下面短文,从短文后所给各题的四个选项(A、B、C和D)中,选出可以填人空白处
的最佳选项,并在答题卡上将该项涂黑。
Not long before,my daughler,s shoes were scratched(划破)with a knife.She burst illto
tears。I took them to the shoemakel,s.
The young apprentice(学徒)glanced at the 21 and said,“Nothing I can do except
22 the upper.”
His master looked at them and said,“If you 23 me,1 will add more scratches on both the shoes.”
1 was 24 and asked why.
He explained,“As if the opening were made 25 for a special style.”
I didn’t fully understand him, 26 I deeided to leave thc shoes。
Two days later i dropped by from work to 27 the shoes. I found more scratches on each
shoe;all the openings were patched(缝补)by soft red leather;the stitches(针脚)were twisted
with the appearance looking more 28 and interesting than ever.I couldn,t help praising the
master,s 29 .
Another time,my sister,s blouse was torn,leaving a large opening.My wife checked it
30 and then said,“Let me take it home and 31 it.”
Three days later,seeing it again,1 was greatly 32 :all the tom parts took on a look of
ice crystal(水晶);attached to it was a snowman made of flowery rags.I sighed with 33.
“It,s amazing!”
“1 was 34 by that shoemaker.Patches are supposed to be 35 .but a skilJful craftsman(工匠)can make it take on a kind of 36 ,”replied my wife.
Her words inspired me more:perfection is impossible to achieve in 37 ;patches appear
in the 38 of injury,disability or disease.Since you c an,t change the existence of wound.you
should not 39 people,s sympathy by disclosing the wound,which is meaningless.Just sew the
40 by patches and produce a most beautifld flower on it,and that is the significance of life.
21.A.scar B.opening C.hole D.mark
22. A.replace B.remove C.throw D.tear
23. A.tell B.show C.agree D.trust
24. A.delighted B.confused C.excited D.astonistled
25.A.on purpose B.by chance C.in particular D.in turn
26.A.so B.and C.as D.but
27.A.bring B.collect C.see D.retum
28.A.ugly B.strange C.1ovely D.familiar
29.A.skill B.drill C.performance D.techniaue
30. A.anxiously B.suddenly C.carefully D.delightly
31.A.wash B.iron C.save D.mend
32.A.puzzled B.disappointed C. surprised D.touched
33.A.anger B.regret C.praise D.care
34.A.encouraged B.inspired C.moved D.attracted
35.A.common B.beautiful C.ugly D.rare
36.A.difference B.perfection C.newness D.change
37.A.future B.mind C.1ife D.place
38. A.form B.name C.shape D.need
39.A.treat B.accept C.ignore D.expect
40.A.wound B.pain C.injury D.disability
-I give up.It’s too hard.
-Really? I______you could make it through.
A.think |
B.thought |
C.have thought |
D.am thinking |
The bell rang and every student had to_________their examination papers.
A.give up |
B.give away |
C.give out |
D.give in |
_____60 miles a day,you need your mountain bike in a very good state.
A.Cover |
B.Covered |
C.To cover |
D.Having covered |