Bees fly a m distance of 3.2 km between their hive and a feeding place. 查看更多

 

题目列表(包括答案和解析)


Have you ever seen people dance? Some dances are fast and others are slow. People’s feet always move when they dance. They keep on moving until the music stops.
People have enjoyed dancing for a very long time. This story is of a different kind of dance. It is a dance without people or music. Yet this dance is one of the oldest in the world. It is the dance of bees.
If you have ever watched bees, you know that they are very clever. They also work hard looking for food and bringing it back to their home.
The home of the bees is called a bee hive. Here hundreds even thousand of bees live. They work day and night building small walls. There they make their honey. This is the same honey that we eat.
Where does the honey come from? Bees live on food from flowers. Have you seen bees flying around a flower garden? When a bee rests on a flower, it tries to go to the centre of it. There it takes in as much food as its body can hold. Then it flies to take the food back to the hive.
At the hive, bees change flower food into honey. Then they fly away for more food.
How do the bees know where to find the best food in the sweetest flowers? One bee acts as a guide. When it discovers good flowers, it flies back to the hive and tells the others. It does this by dancing for them.
The bee dances on one side. This tells the other bees which way to go to find the flowers. But that is not all. The bee dances for some time. And the length of its dance tells the other bees how far they must fly to reach the flowers.
When the bees see the dance, they know where the flowers are. They fly away and return with more food for the hive.
Sometimes we hear the music of the bees as they fly around. But few people have ever seen them dance. Yet without that dance we might never have sweet honey to eat.
【小题1】The writer believes that_________.

A.people dance better than bees
B.people learned dance from bees
C.bees dance more often than people
D.bees don’t like music
【小题2】From this passage we know that the dance of bees means_______.
A.They are good at dancing
B.they want to show their beauty
C.they communicate with each other
D.they have nothing to do
【小题3】Which of the following is true?
A.People get honey from flowers directly.
B.People draw honey from bees’ bodies.
C.People produce honey in a secret place.
D.People get honey from bees indirectly.
【小题4】What character do bees have?
A.dance-lovingB.hard-working
C.music-lovingD.active

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American beekeeping operations have been hit hard by what scientists call Colony Collapse Disorder. Almost half of their worker bees have disappeared during the past season. C.C.D. 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 (授粉) by bees to help them grow.
A new report says 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 identified in Israel in 2004. Ian 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 reject these suspicions.
And some researchers suspect that bee production in the United States is down mainly because of the weather. Honey bees gather nectar(花蜜) 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 a part.
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 to the causes of the bee disorder?

A.criticalB.neutral
C.supportiveD.negative
【小题2】 What is the passage mainly about?
A.American beekeeping industry has been strongly influenced by the bee disorder.
B.Studies are being carried out on the causes of the bee disorder, but questions remain.
C.How the causes of the bee disorder in U.S have been found.
D.The bee production in U.S is down.
【小题3】 How many possibilities may be involved in the bee disorder according to the passage?
A.ThreeB.FourC.FiveD.Six
【小题4】We can infer that         from the passage.
A.Israeli acute paralysis virus should be responsible for the disorder.
B.The solution to the disorder will be found eventually.
C.American bees are more likely to defend themselves against hurt from other insects than Australian ones.
D.Many crop and plant production in U.S may be influenced by the bee disorder.

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Three Gorges Cruises(游程)
Day 1 Home → Beijing
We will meet you at the airport in Beijing and take you to the hotel in the downtown area.
Day 2 Beijing
After breakfast, you’ll visit Tiananmen Square. Then you will go to the Forbidden City, the home of Chinese emperors for more than 500 years. In the evening you will attend a welcome party and have a chance to enjoy Beijing Roast Duck!
Day 3 Beijing → Chongqing
After breakfast, you will fly to Chongqing and visit the Chongqing Museum. Then your cruise down the Yangtze River will begin on the five-star cruise ship, Regal China. You will spend the night on the ship.
Day 4 Chongqing → Fengdu
At 8:00 a.m., the cruise will leave Chongqing. Relax on the deck, and enjoy the beautiful scenery of the river. In the afternoon, we will arrive at Ghost City — Fengdu for an excursion (短途游览) on the shore. Overnight on the ship.
Day 5 Three Gorges
You will sail through the Qutang Gorge and the Wu Gorge, and take a small boat down the Shennong Stream to enjoy the scenery.
Day 6 Three Gorges
After passing the Xiling Gorge, you will go on a morning shore excursion to the Three Gorges Dam.
Day 7 Three Gorges → Wuhan →Shanghai
At 2:30 p.m., the cruise ship will arrive in Wuhan and the cruise tour will end. You will have a chance to visit the Yellow Crane Tower(黄鹤楼), and then you will fly to Shanghai.
Day 8 Shanghai → Home
You will visit the Shanghai Museum in the morning. After lunch, you will visit the Bund (外滩), which is said to be a landmark of Shanghai. Then you will be seen off at Shanghai airport.
【小题1】 How many nights will you spend on the cruise ship?

A.2.B.3.C.4.D.5.
【小题2】On which day will you have an afternoon shore excursion?
A.Day 4.B.Day 5.C.Day 6.D.Day 7.
【小题3】What is the order of the journey?
① the Wu Gorge                ② the Yellow Crane Tower
③ the Xiling Gorge           ④ the Bund
⑤ Chongqing Museum       ⑥ Fengdu
⑦ the Three Gorges Dam   ⑧ the Forbidden City
A.⑧⑤⑥③①②⑦④B.⑧⑤⑥①③⑦②④
C.⑧⑥③⑤②①⑦④D.④⑤⑥①②③⑦⑧
【小题4】 How much will a family with 2 adults and a 3-year-old child pay for the visit?
A.US$4375.B.US$4905.C.US$3950.D.US$4537.5.

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American beekeeping operations have been hit hard by what scientists call Colony Collapse Disorder. Almost half of their worker bees have disappeared during the past season. C.C.D. 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 (授粉) by bees to help them grow.

    A new report says 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 identified in Israel in 2004. Ian 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 reject these suspicions.

    And some researchers suspect that bee production in the United States is down mainly because of the weather. Honey bees gather nectar(花蜜) 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 a part.

    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 to the causes of the bee disorder?

    A. critical         B. neutral

    C. supportive      D. negative

What is the passage mainly about?

    A. American beekeeping industry has been strongly influenced by the bee disorder.

    B. Studies are being carried out on the causes of the bee disorder, but questions remain.

    C. How the causes of the bee disorder in U.S have been found.

    D. The bee production in U.S is down.

How many possibilities may be involved in the bee disorder according to the passage?

    A. Three    B. Four C. Five D. Six

We can infer that         from the passage.

    A. Israeli acute paralysis virus should be responsible for the disorder.

    B. The solution to the disorder will be found eventually.

    C. American bees are more likely to defend themselves against hurt from other insects than Australian ones.

    D. Many crop and plant production in U.S may be influenced by the bee disorder.

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American beekeeping operations have been hit hard by what scientists call colony collapse disorder(C.C.D.). Almost half of their worker bees have disappeared during the past season. C.C.D. 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 (授粉) by bees to help them grow.

A new report says 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 identified in Israel in 2004. Ian 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(全球性的蜂虱). This insect attacks honey bees, which could make the disorder more likely to affect a hive. Australian bee producers reject these suspicions.

And some researchers suspect that bee production in the United States is down mainly because of the weather. Honey bees gather nectar(花蜜) 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 a part.

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.

1.The researchers found the virus ______.

A.with the help of colony collapse disorder

B.by researching the causes of bee death

C.with the help of a map of honey bee genes

D.with the help of a scientist of NASA

2.What is the passage mainly about?

A.American beekeeping industry has been strongly influenced by the bee disorder.

B.Studies are being carried out on the causes of the bee disorder, but questions remain.

C.How the causes of the bee disorder in U.S have been found.

D.The bee production in U.S is down because of Israeli acute paralysis virus.

3.How many possibilities may be involved in the bee disorder according to the passage?

A.Three.

B.Four.

C.Five.

D.Six.

4.We can infer from the passage that ______.

A.Israeli acute paralysis virus should be responsible for the disorder

B.the solution to the bee disorder will be found eventually

C.American bees are more likely to defend themselves than Australian bees

D.the crop and plant production in U.S may be influenced by the bee disorder

 

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