As skies are filled with millions of migrating birds, European scientists say the seasonal wonder appears to be strange: The fatter the bird, the better it flies.
The results of their study led to a theory opposite to a central one of aerodynamics (空氣動(dòng)力學(xué)), which says that the power needed to fly increases with weight.
For birds, obviously, the cost of flying with heavy fat is much smaller than we used to think. Researchers found that red knot wading birds double their normal body weight of 100 grams before making their twice – a – year nonstop flight between the British Isles and the Russian Arctic. Distance: 5,000 kilometers.
Another study in the magazine Nature measured the advantage of flying in an aerodynamic group which allows birds to save energy by flying smoothly and quietly in the lead bird' s air stream.
Flying in groups, their heart rates were 14.5 percent lower than flying alone, according to Henri, a French scientist. The findings help explain how birds complete difficult migrations. Researchers had thought that thinner, stronger birds would have the best chance to survive.
The first study suggests that building up fat to be burnt as fuel during the migration is worth more than the energy it takes to carry the additional weight.
In the study, researchers said their team studied the birds flown at different body weights during 28 simulated (模擬的) flights. They forced a small amount of special water into the birds' bodies so that they could measure the amount of energy burnt during the flight.
1.A red knot wading bird of 100 grams will probably weigh ________ before making its nonstop migrating flight.
A.50 grams B.100 grams
C.150 grams D.200 grams
2.A ________ red knot wading bird has a better chance to survive during its migrating flight.
A.stronger B.weaker C.thinner D.fatter
3.The best title for this passage may probably be ________.
A.Birds Thin Down For Journey
B.Birds Fatten Up For Journey
C.How Birds Build Up Fat For Journey
D.How Birds Burn Energy For Journey
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科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解
Weather is the subject matter of Westerners whenever they met. Housewives, businessmen, factory workers as well as farmers all talk about the weather. It’s everyday news, whether or not conditions change. Many newspapers carry a regular front page news story in addition to the full reports on as inside-page provided by the weather service. Here are several different types of weather reports taken from the western papers:
No. 1 Regional Forecast
New Jersey Today: Considerably cloudy with showers likely. High: 75-79. Southwesterly winds at 15-20m.p.h.. Precipitation(降水) probability 70 percent. Tonight: Warm and cloudy, rain likely. Low: 55-63. Southwesterly winds at 15 to 20m.p.h.. Tomorrow: Showers and thunderstorms likely. High: 75-79. Wind S to SW at 15 to 20m.p.h. |
No. 2 Three-day Forecast
Westchester, Rockland Friday: Mostly fine to partly cloudy. Saturday: Cloudy with some showers. Sunday: Mostly fine. Temperature: Daytime highs will average in the upper 60’s to 70’s while overnight lows will average in the low to 50’s throughout the period. |
No. 3 Weather Stories
Bitter cold, intensified(加劇) by high winds, gripped(控制) the Upper Midwest today, sheets of ice and snow left by the winter’s first major storm on highways throughout the area. At least six deaths were blamed on the storm. Hundreds of schools closed throughout the Upper Midwest yesterday and thousands of travelers waited out the weather at roadside shelters(避難處). Temperatures dropped well below zero early today from the Northern Plains through the Western Great Lakes under clearing skies. A 25-below-zero reading was forecast. Nearly a foot of snow fell on northern sections of Minnesota, Wisconsin and Michigan. And hardest hit were Duluth, Minn. and Superior, Wis., where 12 inches were recorded. Winds went up to 50 miles an hour. |
In a street corner of London, two strangers may begin their talk with “_____”.
A. Hi, how are you? B. What are you doing here? Waiting for someone?
C. A nice day, isn’t it? D. Didn’t you listen to the weather report last night?
The noon temperature of _____ is nearly 70’s at the weekend.
A. Western Great Lakes B. Duluth, Minn
C. Westchester, Rockland D. New Jersey
It seems that _____ has plenty of rain at the present season.
A. Western Great Lakes B. Wisconsin C. Westchester Rockland D. New Jersey
Which of the following is most probable according to No.3?
A. The traffic was terribly affected.
B. The Five Great Lakes were covered by heavy snow.
C. The temperatures might drop to 50℃.
D. Many schools were damaged in the snowstorm.
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科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解
As skies are filled with millions of migrating(遷徙) birds, European scientists say the seasonal wonder appears to be strange: The fatter the bird, tile better it flies.
The results of their study led to a theory opposite to a central one of aerodynamics (空氣動(dòng)力學(xué)), which says that the power needed to fly increases with weight.
For birds, obviously, the cost of flying with heavy fat is much smaller than we used to think. Researchers found that red knot wading birds double their normal body weight of 100 grams before making their twice-a-year nonstop flight between the British Isles and the Russian Arctic. Distance: 5,000 kilometers.
Another study in the magazine Nature measured the advantage of flying in an aerodynamic group which allows birds to save energy by flying smoothly and quietly in the lead bird' s air stream.
Flying in groups, their heart rates were 14.5 percent lower than flying alone, according to Henri, a French scientist. The findings help explain how birds complete difficult migrations. Researchers had thought that thinner, stronger birds would have the best chance to survive.
The first study suggests that building up fat to be burnt as fuel during the migration is worth more than the energy it takes to carry the additional weight.
In the study, researchers said their team studied the birds flown at different body weights during 28 simulated(模擬的) flights. They forced a small amount of special water into the birds' bodies so that they could measure the amount of energy burnt during the flight.
60. A red knot wading bird of 100 grams will probably weigh ________ before making its nonstop migrating flight.
A. 50 grams B. 100 grams C. 150 grams D. 200 grams
61. During their migrating flight, red knot wading birds can save energy by flying
A. separately B. alone C. in groups D. in pairs
62. A ________ red knot wading bird has a better chance to survive during its migrating flight.
A. stronger B. weaker C. thinner D. fatter
63. The best title for this passage may probably be ________.
Birds Thin Down For Journey
Birds Fatten Up For Journey
How Birds Build Up Fat For Journey
How Birds Burn Energy For Journey
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科目:高中英語(yǔ) 來(lái)源:江西省五校2010屆高三下學(xué)期第一次聯(lián)考 題型:閱讀理解
C
SAN FRANCISCO--- As skies are filled with millions of migrating birds, Europeans scientists say the seasonal miracle appears to depend on a seeming contradiction: The fatter the bird, the more efficiently it flies.
The result of their study contradict a central theory of aerodynamics(空氣動(dòng)力學(xué)), which predicts that the power needed to fly increases with weight.
For birds, apparently, the cost of flying with heavy fuel loads is considerably smaller than previously thought.
Researchers found that red knot wading birds double their normal body weight of 100 grams before making their twice-a-year, non-stop commute(路程) between the British Isles and the Russian Arctic. Distance: 5,000 kilometers.
Another study in the journal Nature measured the benefits of flying in an aerodynamic V formation, which allows bird to save energy by gliding in the lead bird’s air stream.
Flying in formation, their heart rates were as much as 14.5 percent lower than flying solo, according to Henri Weimerskirch, a French scientist. The findings help explain how birds complete difficult migrations.
Researchers had assumed that thinner, more athletic birds would have the best chance of survival.
The first study suggests that building up fat deposits(存放) to be burned as fuel during the migrating is worth more than the energy it takes to carry the additional weight. In the study, researchers said their team studied the birds flown at different body masses during 28 simulated(模擬) flights. They were injected with a small amount of water containing a radioactive element that enabled the team to measure the amount of energy burned.
63. Researchers used to believe_______.
A. the thinner a bird is, the less energy it needs to fly
B. migratory birds make a journey from the British Isles to the Russian Arctic
C. aerodynamics makes no sense
D. birds eat more before they begin their migrations
64. According to the passage, birds prefer to fly in the V formation rather than fly solo because_____.
A. it is against aerodynamic to fly in the V formation
B. they can save energy while migrating
C. they won’t get lost with a bird leading the way
D. in this way their heart beat faster so that they can fly faster
65. The researchers didn’t ______ in the study.
A. inject the birds with water containing a radioactive element
B. watch birds of different body masses in simulated flights
C. take the birds’ heart rates
D. feed the birds to fatten them
66. The best title of the passage should be _______.
A. Birds Fatten up for Journey B. Migratory Birds in Europe
C. New Findings D. Migrating in V formation
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科目:高中英語(yǔ) 來(lái)源:2012屆廣東省佛山一中高三高考模擬英語(yǔ)試卷(帶解析) 題型:填空題
請(qǐng)閱讀下列應(yīng)用文及其相關(guān)信息,并按照要求匹配信息。
下面是幾條與節(jié)日有關(guān)的報(bào)道,首先請(qǐng)閱讀這些報(bào)道的標(biāo)題和插圖:
(注意:如果選擇E,則在答題卡上同時(shí)填涂A和B選項(xiàng);如果選擇F,則在答題卡上同時(shí)填涂C和D選項(xiàng)。)
A. | Father’s Day Shortchanged? Humble History, Fewer Gifts With Father’s Day 2011 here, find out how the holiday started, why Dad doesn’t mind being shortchanged on gifts, and more. | |
B. | Why Mother’s Day Horrified, Ruined Its Own Mother Born of war, Mother’s Day grew to horrify its own mother, whose fight to fix the holiday “cost her everything, financially and physically.” | |
C. | Valentine’s Day Facts: Gifts, History, and Love Science Where did Valentine’s Day come from? What does it cost? And why do we fall for it, year after year? | |
D. | Thanksgiving 2010 Myths and Facts Before the big dinner, debunk the myths—for starters, the first “real” Thanksgiving wasn’t until the 1800s—and get to the roots of Thanksgiving 2010. | |
E. | 4th of July Facts: 1st Fests, Number of Fireworks, More How did Founding Fathers Celebrate 4th of July? How many 4th of July fireworks explode each year? Answers and more. | |
F. | Earth Day at 40: What Good Is It Now? After 40 years, outsourced activism is replacing traditional Earth Day activities, and green’s gone mainstream, experts say. So what’s the point? |
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科目:高中英語(yǔ) 來(lái)源:2013-2014學(xué)年江蘇省無(wú)錫市等三校高三12月聯(lián)考英語(yǔ)試卷(解析版) 題型:完型填空
Like any good mother, when Karen found out that another baby was on the way, she did what she could to help her three-year-old son, Michael, prepare for a new baby. They found out that it was going to be a girl, and day after day, night after night, Michael to his sister in Mommy’s tummy(肚子). He was building a bond of love with his little sister before he even met her.
The pregnancy progressed for Karen. In time, the labor pains came. Soon it was every five minutes ... every minute. But something serious during delivery. Finally, Michael’s little sister was born. But she was in serious . With siren(警報(bào)) howling in the night, the ambulance the infant(嬰兒) to the Intensive Care unit at St. Mary’s Hospital in Knoxville, Tennessee.
inched by. The little girl got worse. The doctors told the parents, “There is very little hope.” Karen and her husband contacted a local cemetery (墓地) about a burial plot. They had a special room in their home for the new baby — now they planned a funeral.
After two weeks in Intensive Care, it looked as if a funeral would come the week was over. Michael, kept begging his parents to let him see his sister, “I want to sing to her,” he said. Kids were never in Intensive Care. But Karen made up her mind to take Michael they liked it or not. If he didn’t see his sister now, he may never see her alive.
She him in an oversized suit and him into ICU. He looked like a walking laundry basket, but the head nurse him as a child, “Get that kid out of here now!” The mother rose up strong in Karen, and the usually lady glared steel-eyed right into the head nurse’s face, saying in a tone of voice, “He is not leaving until he sings to his sister!” Karen towed Michael to his sister’s bedside. He gazed at the tiny baby the battle to live. And he began to sing. the pure hearted voice of a 3-year-old, Michael sang:
“You are my sunshine, my only sunshine, you make me happy when skies are gray…” the baby girl responded. The pulse rate began to down and became steady.
“Keep on singing, Michael.” encouraged Karen. “You never know, dear, how much I love you. Please don’t take my sunshine away…”As Michael sang to his sister, the baby's breath became as smooth as a kitten’s purr.
“Keep on singing, Michael.” “The other night, dear, as I lay sleeping…” Michael’s little sister relaxed as rest, healing rest, seemed to sweep over her.
Funeral plans were . The next day — the very next day — the little girl was well enough to go home!
The medical staff just called it a miracle. Karen called it a miracle of God’s love!
1.A. talked B. sang C. played D. whispered
2.A. quietly B. peacefully C. hopefully D. normally
3.A. arose B. raised C. rose D. aroused
4.A. situation B. place C. condition D. position
5.A. took B. sent C. carried D. rushed
6.A. The years B. The months C. The weeks D. The days
7.A. fixed up B. made up C. built up D. set up
8.A. until B. before C. after D. when
9.A. asked B. allowed C. admitted D. acquired
10.A. no matter B. even if C. whether D. as if
11.A. put B. dressed C. wore D. fit
12.A. marched B. forced C. hid D. followed
13.A. required B. replied C. recognized D. regarded
14.A. warm-hearted B. well-managed C. mild-mannered D. cold-blooded
15.A. firm B. strong C. hard D. tough
16.A. losing B. lost C. to lose D. having lost
17.A. In B. On C. At D. With
18.A. Finally B. Instantly C. Patiently D. Interestingly
19.A. calm B. quiet C. slow D. fast
20.A. erased B. scratched C. abandoned D. switched
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