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Hidden passengers traveling in ships, trams, or even cars can be a terrible trouble — especially when they are insects. As for this, there is a great 1 between human beings and insects. The 2 take every possible effort to avoid being discovered, while the latter quickly 3 attention to themselves.
We can only show mercy to the 4 man who had to stop his car soon after setting out from a country village to drive to London. Hearing a strange noise from the
5 of the car, he naturally got out to examine the wheels carefully, but he found nothing wrong, so he 6 his way. Again the noise began, 7 and became even louder. Quickly turning his head, the man saw what appeared to be a great 8 cloud following the car. When he stopped at a village further on, he was told that a queen bee must be hidden in his car as there were thousands of bees 9 .
On learning this, the man drove away as quickly as possible. After an hour's 10 driving, he arrived safely in London, where he parked his car outside a 11 and went in. It was not long before a customer who had seen him arrive 12 in to inform him that his car was 13 with bees. The poor driver was 14 that the best way should be to call a 15 .In a short time the man arrived. He found the unwelcome passenger hidden near the wheels at the back of the car. Very thankful to the driver for this unexpected gift, the bee-keeper took the queen and her thousands of followers home in a large box.
1. A.connection B.difference C.communication D.similarity
2. A.passengers B.insects C.former D.first
3. A.give B.keep C.pay D.draw
4. A.unfortunate B.careless C.unpleasant D.hopeless
5. A.front B.back C.left D.right
6. A.drove B.continued C.pushed D.forced
7. A.normally B.gently C.quietly D.immediately
8. A.black B.beautiful C.white D.colorful
9. A.below B.ahead C.nearby D.behind
10. A.boring B.careful C.exciting D.hard
11. A.hotel B.museum C.hospital D.school
12. A.broke B.moved C.hurried D.dropped
13. A.crowded B.covered C.filled D.equipped
14. A.advised B.required C.ordered D.requested
15. A.bee-keeper B.policeman C.waiter D.repairman
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第四部分:任务型阅读(共10小题;每小题1分,满分10分)
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For more than twenty years scientists have been seeking to understand the mystery of the‘‘sixth sense"of direction.By trying out ideas and solving problems one by one,they are now getting closer to one answer.
One funny idea is that animals might have a built-in compass(指南针).
Our earth itself is a big magnet(磁体).So a little magnetic needle that swings freely lines
itself with the big earth magnet to point north and south.When people discovered that idea about athousand years ago and invented the compass,it allowed sailors to navigate (航海)on oceanvoyages, even under
cloudy skies.
Actuallly the idea of the living compass came just from observing animals in nature.
Many birds migrate twice a year between their summer homes and winter homes.Some of them fly for thousands of kilometers and mostly at night.Experiments have shown that some birds can recognize star patterns.But they can keep on course even under cloudy skies.How can they do that?
A common bird that does not migrate but is great at finding its way home is the homing pigeon.Not all pigeons can find their way home.Those that can are very good at it,and they have been widely studied.
One interesting experiment was to attach little magnets to the birds’ heads to block their
magnetic sense—just as a loud radio can keep you from hearing a call to dinner.On sunny days, that did not fool the pigeons.Evidently they can use the sun to tell which way they are going.But on cloudy days,the pigeons with magnets could not find their way.It was as if the magnets had blocked their magnetic sense.
Similar experiments with the same kind of results were done with honeybees.These insects also seem to have a special sense ot direction.
In spite of the experiments,the idea of an animal compass seemed pretty extraordinary.How
would an animal get the magnetic stuff for a compass.
An answer came from an unexpected source.A scientist was studying bacteria that live in the
mud of ponds and marshes.He found accidentally little rod-like bacteria that all swam together in
one direction—north.
Further study showed that each little bacterium had a chain of dense particles inside,which
proved magnetic.The bacteria had made themselves into little magnets that could line up with the
earth’s magnet.
The big news was that a living thing,even a simple bacterium,can make magnetite.That led
to a search to see whether animals might have it.. By using a special instrument called magnetometer,scientists were able to find magnetite in bees and birds,and even in fish.In each
animal,except for the bee.the magnetic stuff was always in or closer to the brain.
Thus.the idea of a built—in animal compass began to seem reasonable.
|
The Magnetic Sense— The Living Compass |
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|
Passage outline |
Supporting details |
|
The existence of the earth magnet and the invention of the navigating compass |
◇Our earth is a big magnet and a little freely (71) ▲ magnetic needle lines itself with the earth magnet to point north and south. ◇(72) ▲ on the idea above, the navigating compass was invented. |
|
The possibility of birds’ built-in compasses |
◇ One piece of evidence is the (73) ▲ of many birds between their summer homes and winter homes. ◇ Birds can recognize star patterns on clear nights and keep on course (74) ▲ under cloudy skies |
|
The (75) ▲ on pigeons’ and bees’ built-in compasses
|
◇Little magnets were tied to the pigeons’ heads to (76) ▲ their magnetic sense. ◇The pigeons’ magnetic sense seemed to be affected on (77) ▲ days. ◇Similar things with the same results were done with bees. |
|
The (78) ▲ of the magnetic stuff for the animal compass |
◇Little rod-like bacteria were found by chance to swim together in the direction of (79) ▲ . ◇Some animals had a chain of dense magnetic particles in or close to the (80) ▲ inside their bodies. |
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It was also apparent that the wagging dance, the bee moved sideways,sent another message.
A.which B.where C.that D.what
查看习题详情和答案>>US bees operation keeping groups have been attacked seriously by so called Colony (群体)Collapse Disorder.Almost 1/2 of their worker bees have vanished during the past season.This disorder has also been reported in Israel, Europe and South America.Bees fly away from the hive and never return.Sometimes they are found dead; other times they are never found.Many crops and trees depend on pollination^^}) by bees to help them grow.
A new report says a virus may be at least partly responsible for the disorder in honey bee colonies in the United States.This virus is called Israeli acute paralysis virus.It was first found in Israel in 2004.lan Lipkin at Columbia University in New York and a team reported the new findings in Science Magazine.Doctor Lipkin says the virus may not be the only cause.He says it may work with other causes to produce the collapse disorder.
The team found the virus in colonies with the help of a map of honey bee genes that was published last year.They examined thirty colonies affected by the disorder.They found evidence of the virus in twenty-five of them, and in one healthy colony.The next step is further testing of healthy hives.
The researchers suggested that the United States may have imported the disorder in bees from Australia.They say the bees may carry the virus but not be affected.
The idea is that unlike many American bees, the ability of Australian bees to fight disease has not been hurt by the varroa mite.This insect attacks honey bees, which could make the disorder more likely to affect a hive.Australian bee producers object to these suspicions.
And some researchers suspect that bee production in the United States is down mainly because of the weather.Honey bees gather nectar from flowers and trees.The sweet liquid gives them food and material to make honey.But cold weather this spring in the Midwest reduced the flow of nectar in many flowers.Many bees may have starved.Dry weather in areas of the country could also be playing apart.
Wayne Esaias is a NASA space agency scientist who keeps bees in his free time.He lives in central Maryland, where he has found that flowers are blooming a month earlier than they did in 1970, which may be partly responsible for the disorder. Wayne Esaias is organizing a group of beekeepers to document nectar flow around the country.
What is the author’s attitude toward the cause of this disorder?
A.Doubtful. B.Neutral. C.Supportive. D.Negative.
The researchers found the virus sharply by .
A.studying the published Science Magazine
B.researching the causes of bee death
C.examining some affected colony
D.exploring a connected chart
The passage is mainly developed by .
A.presenting the effect and analyzing its causes
B.making comparisons between two countries
C.providing data and examples
D.following the time order
How many possibilities may be involved in the bee disorder according to the passage?
A.Three B.Four C.Five D.Six
From the passage we can infer that .
A.American bees are more likely to defend themselves against hurt from other insects than Australian ones
B.A collection of plants production in U.S ay be influenced by the bee disorder
C.Israeli acute paralysis virus should be responsible for the disorder
D.The solution to the disorder will be found eventually
查看习题详情和答案>>US bees operation keeping groups have been attacked seriously by so called Colony Collapse Disorder (蜂群衰竭失调).Almost 1/2 of their worker bees have vanished during the past season.This disorder has also been reported in Israel, Europe and South America.Bees fly away from the hive and never return.Sometimes they are found dead; other times they are never foun
d.Many crops and trees depend on pollination--- by bees to help them grow.
A new report says a virus may be at least partly responsible for the disorder in honey bee colonies in the United States.This virus is called Israeli acute paralysis virus.It was first found in Israel in 2004.Lan Lipkin at Columbia University in New York and a team reported the new findings in Science Magazine.Doctor Lipkin says the virus may not be the only cause.He says it may work with other causes to produce the collapse disorder.
The team found the virus in colonies with the help of a map of honey bee genes that was published last year.They examined thirty colonies affected by the disorder.They found evidence of the virus in twenty-five of them, and in one healthy colony.The next step is further testing of healthy hives.
The researchers suggested that the United States may have imported the disorder in bees from Australia.They say the bees may
carry the virus but not be affected.
The idea is that unlike many American bees, the ability of Australian bees to fight disease has not been hurt by the varroasis mite.This insect attacks honey bees, wh
ich could make the disorder more likely to affect a hive.Australian bee producers object to these suspicions.
And some researchers suspect that bee production in the United States is down mainly because of the weather.Honey bees gather nectar from flowers and trees.The sweet liquid gives them food and material to make honey.But cold weather this spring in the Midwest reduced the flow of nectar in many flowers.Many bees may have starved.Dry weather in areas of the country could also be playing apart.
Wayne Esaias is a NASA space agency scientist who keeps bees in his free time.He lives in central Maryland, where he has found that flowers are blooming a month earlier than they did in 1970, which may be partly responsible for the disorder. Wayne Esaias is organizing a group of beekeepers to document nectar flow around the country.
【小题1】What is the author’s attitude toward the cause of this disorder?
| A.Doubtful | B.Neutral | C.Supportive | D.Negative |
| A.presenting the effect and analyzing its causes |
| B.making comparisons between two countries |
| C.providing data and examples |
| D.following the time order |
| A.Three | B.Four | C.Five | D.Six |
| A.American bees are more likely to defend themselves against hurt from other insects than Australian ones |
| B.A collection of plants production in the U.S may be influenced by |
| C.Israeli acute paralysis virus should be responsible for the disorder |
| D.The solution to the disorder will be found eventually |