题目内容

“Birds are not as loyal to their partners as you might think, with divorce, child abandonment and remarriage a common part of birds’ life,” a new book has shown. Author and biology professor Bridge Stutchbury, dispels the love-bird belief that birds pair up for life. “In terms of the top 10 beliefs about birds, the lasting pair bonds that we think about, do occur in some birds, but in most of the little songbirds that we studied, no,” the professor from York University in Toronto said. The divorce rate among greater flamingos is 99 percent.
Stutchbury’s book, The Private Lives of Birds, based on 20 years of research from radio filming and DNA testing shows male Acadian flycatchers fertilize(使受孕) females far away from their home nests, “ The main discovery is that so many birds do divorce for what humans would describe as selfish reasons,” Professor Stutchbury said. She noted that females may seek out males that are more colorful and better singers, or look to “step up in the world” and move to areas that are safer and have more food. “Females are looking for the highest quality male so that their children will be of high quality,” she added.
Professor Stutchbury said shorter summers may drive females to leave their nests before their young are fully grown up so they can quickly find new mates(配偶) and lay more eggs, leaving the males to feed the hungry chicks on their own.
Males can double their success in producing children by fertilizing neighboring females, but only “mates” care for the young, and some are none the wiser. “  They can’t tell when the egg comes out and whether it’s theirs or not,” She said. “They have no way to know.”
Divorce is surprisingly common among birds, and most live with one partner for only a few months or years. Divorce rates range from 99 percent in the greater flamingo to zero in the wandering albatross(信天翁).
【小题1】What does the underline word “dispels” mean?

A.States B.Doubts C.Confirms D.Removes
【小题2】The book The Private Lives of Birds_____.
A.shows the kind of male birds females seek out.
B.indicates the wandering albatross is the most faithful.
C.is based on Professor Stutchbury’s 20 years’ research.
D.suggests that female birds select males near their home.
【小题3】According to the passage, we can infer that________.
A.young birds’ quality depends on their feather.
B.some male birds care for others’ young as their own.
C.female birds go to find males as soon as autumn comes.
D.female birds are responsible for feeding the hungry babies.
【小题4】 What is the passage mainly about?
A.A book about love-birds.
B.Birds’ living habits and love life
C.The fact that birds don’t love their mates forever.
D.The factors that influence birds to look for another mate.


【小题1】D
【小题2】A
【小题3】B
【小题4】C

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In Canada you can find dogs, cats, horses, etc. in almost every family. These are their pets. People love these pets and have them as their good friends. Before they keep them in their houses, they take them to animal hospitals to give them injections(注射) so that they won’t carry diseases. They have special animal food stores, though they can get animal food in almost every kind of stores. Some people spend around two hundred Canadian dollars a month on animal food.
When you visit people’s houses, they would be very glad to show you their pets and they are very proud of them. You will also find that almost every family has a bird feeder in their garden. All kinds of birds are welcomed to come and have a good meal. They are free to come and go and nobody is allowed to kill any animal in Canada. They have a law against killing wild animals. If you killed an animal, you would be punished. If an animal happened to get run over by a car, people would be very sad about it.
People in Canada have many reasons to like animals. One of them might be: Their family ties are not as close as ours. When children grow up, they leave their parents and start their own life. Then the old will feel lonely. But pets can solve this problem. They can be good friends and never leave them alone.
【小题1】The passage mainly talks about ______.

A.how to keep diseases from petsB.Canadians have pets as friends
C.how to take good care of petsD.life of the old in Canada
【小题2】Pets are given injections in animal hospitals ______.
A.in order to keep them safeB.after being taken home
C.because they carry diseasesD.because they are sick
【小题3】The word “bird feeder” in the second paragraph probably means ______.
A.a person who gives food to birds B.a container that has food for birds
C.something that catches birdsD.an animal that eats birds
【小题4】In Canada, children leave their parents when they grow up because ______.
A.they don’t love their parents any more
B.they can only find jobs far from their parents
C.their parents’ houses are too small
D.they wouldn’t depend on their parents any more
【小题5】Which of the following is TRUE?
A.Peoplebuyanimal foodonlyattheanimalfood stores.
B.Pets eat better than people.
C.Almost every family has a birdcage(鸟笼) in his house.
D.Any bird can come to the bird feeders to eat.

The Peppered Moth, a kind of insect(昆虫), is found in England. It is light brown in colour and likes to settle(栖息) on trees which are also light brown. This makes the moth difficult to be seen and birds are less likely to notice and eat it.
But with the development of industry(工业) , smoke from factories began to reach the trees where the moth settled. It made the trees blacker. Then something very strange took place: in industrial areas, the Peppered Moth began to change colour. It became darker as well. Though the change took several years, some scientists soon notice that newly-born moths were a little darker than usual.
A scientist with the name Kettlewell decided to make a careful study of this phenomenon(现象). He marked some of the light moths and some of the darker ones, and set them free in the woods near Bermingham, an industrial city. Later, he recaptured(重新捕获) as many as the marked moths as possible. The results were as follows.

 
light moths
darker moths
Moths set free
201
601
moths recaptured
34(16%)
206(34%)
Kettlewell's research (研究) was done in the early 1950s. Soon afterwards Britain introduced new laws to reduce smoke and factory pollution.
Can you imagine what would happen to the Peppered Moth as the air became cleaner again?
【小题1】The Peppered Moth began to change its colour in industrial areas because         .
A.it itself liked to
B.it could be like the colour of its living-place
C.it had to keep the balance of nature
D.it was usually dark brown
【小题2】From the results of Kettlewell's research, we can see that       .
A.many more of the light moths were killed or eaten
B.more than one-fifth of the light moths was not killed
C.three times as many dark moths were kept safe as light ones
D.more dark moths were killed in industrial areas
【小题3】As the air became cleaner,        .
A.the number of the light moths became larger
B.the total number of the light moths remained unchanged
C.there were more of the darker moths and fewer of the light ones
D.the darker moths changed into the light ones suddenly

In Canada you can find dogs,cats,horses,etc. in almost every family. These are their pets. People love these pets and have them as their good friends. Before they keep them in their houses,they take them to animal hospitals to give them injections(注射)so that they won’t carry disease. They have special animal food stores, though they can get animal food in almost every kind of store. Some people spend around two hundred Canadian dollars a month on animal food. When you visit people’s houses,they would be very glad to show you their pets and they are very proud of them. You will also find that almost every family has a bird feeder in their garden. All kinds of birds are welcomed to come and have a good meal. They are free to come and go and nobody is allowed to kill any animal in Canada. They have a law against killing wild animals. If you killed an animal,you would be punished. If an animal happened to get run over by a car,people would be very sad about it.

People in Canada have many reasons to like animals. One of them might be:Their family ties are not as close as ours. When children grow up,they leave their parents and start their own life. Then the old will feel lonely. But pets can solve this problem. They can be good friends and never leave them alone.

1.The passage mainly talks about ________ .

A.how to keep disease from pets

B.pets in Canada

C.how to take good care of pets

D.life of the old in Canada

2.In Canada,children leave their parents when they grow up because ___.

A.they don’t love their parents any more

B.they can only find jobs far from their parents

C.their parents’ houses are too small

D.they wouldn’t depend on their parents any more

3.Which of the following is TRUE?

A.Peoplebuyanimal foodonlyattheanimalfood stores.

B.Pets eat better than people.

C.Almost every family has a birdcage in his house.

D.Any bird can come to the bird feeders to eat.

 

Secondhand smoke isn’t just a health threat to people.It can also hurt dogs and cats,veterinarians say.
According to the Centers for Disease Control and Prevention,more than 126 million Americans who don't smoke are exposed to secondhand smoke in their homes,vehicles,workplaces,and public places.This exposure causes thousands of lung cancer and heart disease deaths among nonsmokers every year,according to the California Environmental Protection Agency.
“Making the leap from the effects of secondhand smoke on humans to their effects on pets isn't a big one,” says veterinarian (兽医专家) Carolynn MacAllister of Oklahoma State University.
“There have been a number of scientific papers recently that have reported the significant health threat secondhand smoke poses to pets,” MacAllister said.“Secondhand smoke has been associated with oral cancer and lymphoma in cats,lung and nasal cancer in dogs,as well as lung cancer in birds.”
Studies have also shown that dogs living in a smoking household are susceptible to cancers of the nose and sinus area,particularly if they are a long-nosed breed,because their noses have a greater surface area that is exposed to carcinogens and a greater area for them to accumulate.Dogs affected with nasal cancer normally don't survive for more than one year.
“Short and medium-nosed dogs are more susceptible to lung cancer,because their shorter nasal passage aren't as effective at accumulating the inhaled secondhand smoke carcinogens,” MacAllister said.“This results in more carcinogens (致癌物质) reaching the lungs.”
Birds are also at risk for lung cancer,as well as pneumonia,because their respiratory systems are hypersensitive to any type of air pollutant.
To help prevent animals from being adversely affected by smoking,pet owners who smoke should have a designated smoking area that is separated from the home or stop smoking altogether,MacAllister said.        

  1. 1.

    From the passage,we can see secondhand smoke maybe not harmful to _______.

    1. A.
      smokers
    2. B.
      non-smokers
    3. C.
      pets
    4. D.
      trees
  2. 2.

    What can be suggested according to the passage?

    1. A.
      Smokers can smoke anywhere.
    2. B.
      Smokers can smoke at any time.
    3. C.
      Smokers should smoke in the designated place.
    4. D.
      Smokers must give up smoking at once.
  3. 3.

    What kind of dogs are likely to suffer from nasal cancer?

    1. A.
      Long-nosed dogs
    2. B.
      Short-nosed dogs
    3. C.
      Medium-nosed dogs
    4. D.
      Dogs without noses
  4. 4.

    The best title of the passage is __________.

    1. A.
      Secondhand Smoke Causes Cancer in People
    2. B.
      Secondhand Smoke Causes Cancer in Birds
    3. C.
      Secondhand Smoke Causes Cancer in Pets
    4. D.
      Secondhand Smoke Causes Cancer in Cats
  5. 5.

    What is the meaning of the underlined phrase “are susceptible to”?

    1. A.
      are likely to be harmed by
    2. B.
      are hard to be influenced by
    3. C.
      are less to be effected by
    4. D.
      are lucky to be caught by

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