题目内容
Experts do not really know when people began keeping fish as pets. But they say that people have been interested in fish for thousands of years. Some say the ancient Sumerians were the first civilization to keep fish in ponds more than four thousand years ago. The Chinese kept and studied carp and goldfish more than one thousand years ago. The ancient Romans kept eels as pets. And the Greek philosopher Aristotle made what is believed to be the first known study of sea life, including sharks and dolphins.
Keeping fish at home in small water tanks called aquariums is extremely popular today. And everyone seems to enjoy visiting huge public aquariums that have opened around the world.
By the middle of the eighteen hundreds, science had shown that plants, fish and other sea creatures could survive together under water. So it was no longer necessary to change the water in a tank for the fish to live there. This led to the building of the first public aquariums.
The first aquariums opened in London, England in 1853. in the next fifteen years, other aquariums opened in Europe and the United States. By 1928, there were about forty-five public aquariums.
The Monterey Bay Aquarium has been recognized as the first aquarium in the United States and it shows visitors the underwater life in the bay. The Georgia Aquarium opening in 2005 says it is the largest in the world. It has more than one hundred thousand sea animals in thirty million liters of water including two whale sharks---the world’s largest fish.
Another aquarium re-opened in 2005 in Camden, New Jersey. The Adventure Aquarium first opened in 1992. It spent about fifty million dollars expanding its building and improving its exhibits.
Aquariums provide the public with many chances to experience life under the sea. They can be found in most areas of the world. People might even want to start an aquarium at home and join the millions of people around the world who keep fish as pets.
【小题1】Which aquarium opened again after its rebuilding ?
| A．The Monterey Bay Aquarium. | B．The Adventure Aquarium. |
| C．The Georgia Aquarium. | D．The first aquarium in London. |
| A．The ancient Sumerians. | B．The ancient Romans. | C．The Chinese. | D．The ancient Indians. |
| A．People were not interested in fish until the middle of the eighteen hundreds. |
| B．The Moneterey Bay Aquarium is regarded as the best aquarium in America. |
| C．Plants, fish and other sea creatures could not survive together under sea. |
| D．People have to change the water in a tank frequently for the fish to live there. |
| A．to tell people the importance of keeping fish as pets |
| B．to explain why people want to visit aquariums |
| C．to let people know the development of the aquariums |
| D．to describe different aquariums |
| A．Exhibition centres where people can watch and enjoy different species of fish. |
| B．Small boxes made of glass, where people keep fish in, usually at home. |
| C．Places which shows visitors the underwater life in the bay. |
| D．Places which provides the public with many chances to experience life under the sea. |
【小题1】B
【小题1】D
【小题1】B
【小题1】C
【小题1】B
解析
天天向上一本好卷系列答案
小学生10分钟应用题系列答案Hair loss can be an emotionally troubling experience for some women. Luckily, experts do have suggestions on how to treat and prevent this condition.
According to Dr. Robert Jones of the Hair Transplant Center in Oakville, ON, hair loss in women is largely genetically determined—he estimates that nearly 80 to 90 percent of hair loss in both men and women is due to a family history of the condition. But some women can experience hair loss as the result of a thyroid dysfunction, pregnancy hormones or because of side effects of medicines such as antidepressants and birth control pills. Nick Dimakos, founder of SureThik International in Toronto, agrees stress and lower-than-normal levels of estrogen (雌性激素) are other contributing factors to hair loss in females. Low levels of iron and over-use of chemical hair products such as artificial dyes (染料) can also lead to thinning hair, which can be especially difficult for women, for whom hair loss is much less socially acceptable than it is for men. “Women lose about 25 percent of their hair before even noticing there’s a problem,” Dimakos says. “It can be devastating (毁灭性的) for them.”
There is no surefire (一定成功的) way to prevent hair loss, but there are steps you can take to reduce the amount of hair you lose. Dimakos recommends visiting your doctor because early discovery and treatment can prevent unnecessary hair loss. He also recommends using mild hair products, avoiding hair dyes or extensions, avoiding smoking and taking vitamin B12 if you suspect hair loss may be in your future. Wearing hair in a ponytail (马尾辫) or braid (辫子) regularly can also lead to weakened hair that is likely to fall out, so it may be best to avoid wearing these styles too often.
Of course, if your hair begins to lose, you’d better seek treatment.
? Hair transplants
Very few women turn to hair transplants because unlike men, women suffering from hair loss usually have thinning hair all over their heads rather than only in one area. If there is not enough hair somewhere else on the head that can be taken to fill in the gaps, a transplant cannot be performed.
? Minoxidil
Found in Rogaine, an over-the-counter (OTC) product, this is a medicine that lowers blood pressure. But it can also slow down or stop hair loss, says Dimakos. This option may work for some women, but it is important to consult your physician before taking any type of medication.
| The truth about hair loss in women | ||
| What (71) hair loss? | (72) factor | A large (73) of hair loss is due to a family history of the condition. |
| Health condition and stress | A thyroid dysfunction, stress, pregnancy hormones and low levels of estrogen and iron all lead to hair loss. | |
| Side effects of medicines | Some medicines lead to hair loss. | |
| Chemical hair products | Over-use of such products may cause hair to (74) . | |
| Women’s ignorance | About 25 percent of their hair is lost before women (75) there is a problem. | |
| How can you prevent hair loss? | Visit the doctor. | Doctors may help you (76) it early and treat hair loss in time. |
| Adopt a healthy (77) . | Avoid smoking and take vitamin B12. Avoid hair dyes or extensions. | |
| Wear your hair properly. | Avoid wearing hair in a ponytail or braid (78) . | |
| How can you (79) hair loss? | Hair transplants | A transplant can be performed if there is enough hair somewhere else on the head that can be taken to fill in the gaps. |
| Minoxidil | The medicine can slow down or stop hair loss if (80) properly. | |
School violence is in the headlines again after recent shootings at schools in Pennsylvania, Wisconsin, and Colorado. After hearing the news, it’s natural for students — no matter how old they are or where they go to school — to worry about whether this type of incident may someday happen to them.
So how safe are schools? It’s actually safer to be in a school than in a car. Twice as many 15-to-19-year-olds die in car accidents than in shootings (and that’s all shootings, not just the ones that happen in schools). According to the Centers for Disease Control and Prevention, less than 1% of all homicides (杀人罪) among school-age children happen on school grounds or on the way to and from school. So the vast majority of students will never experience violence at school.
However, some schools have re-evaluated their safety needs in response to the concerns of families and communities. Some now require that guests check in at the office or have more guards on duty. Some schools have fixed metal detectors. Another thing that helps make schools safer is greater awareness of problems like bullying and discrimination. Many schools have practiced programs to fight these problems and to help teachers and administrators know more about protecting students from this type of violence.
The cause of school violence isn’t easy to understand. There is no single reason why students become violent. Some are just copying behavior they’ve seen at home, in the streets, or in video games, movies, or television. There’s one thing experts do agree on, though: Having access to guns or other weapons makes it easier for some people to lash out against the things or people they don’t like.
1.Which of the following statements can prove that schools are safe?
|
A．About 99% of 15- to-19-year-olds are safe at school. |
|
B．Fewer students have died in car accidents than in shootings. |
|
C．Students shot to death at school are half of all students. |
|
D．Fatal shootings of students are less than 1% of all homicides. |
2. After schools have re-evaluated their safety needs, ________.
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A．families will be more concerned about schools |
|
B．communities will be responsible for schools |
|
C．teachers will pay more attention to shootings |
|
D．administrators will arrange to have more guards on duty |
3.From the last paragraph we can conclude that ______.
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A．experts have found no reason for school violence |
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B．students with weapons are easily upset about things |
|
C．school violence could be copied from violence in society |
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D．no single reason makes students violent |
4.We could probably see this passage in ______.
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A．an analysis report |
B．a realistic novel |
|
C．a case investigation |
D．a news journal |