Why do men die earlier than women? The latest research makes it known that the reason could be that men’s hearts go into rapid decline when they reach middle age.
The largest study of the effects of ageing on the heart has found that women’s longevity may be linked to the fact that their hearts hardly lose their pumping power with age.
“We have found that the power of the male heart falls by 20---25 percent between 18 and 70 years of age,” said the head of the study, David Goldspink of Liverpool John Moores University in the UK. “Within the heart there are millions of cells that enable it to beat. Between the age of 20 and 70, one-third of those cells die and are not replaced in men,” said Goldspink. “This is part of the ageing process.”
What surprises scientists is that the female heart sees very little loss of these cells. A healthy 70-year-old woman’s heart could perform almost as well as a 20-year-old one’s.
“This gender (性别)difference might just explain why women live longer than men,” said Goldspink.
They studied more than 250 healthy men and women between the ages of 18 and 80, focusing on healthy persons to remove the confusing influence of disease.
The team has yet to find why ageing takes a greater loss on the male heart, said Goldspink.
The good news is that men can improve the health of their heart with regular exercise. Goldspink stressed that women also need regular exercise to prevent their leg muscles becoming smaller and weaker as they age.The underlined word “longevity” in the second paragraph probably refers to _________.
| A．health | B．long life | C．ageing | D．effect |
The text mainly talks about ________.
| A．men’s heart cells | B．women’s ageing process |
| C．the gender difference | D．hearts and long life |
According to the text, the UK scientists have known that _________.
| A．women have more cells than men when they are born |
| B．women can replace the cells that enable the heart to beat |
| C．the female heart loses few of the cells with age |
| D．women never lose their pumping power with age |
We can know from the passage that _______.
| A．the reason why ageing takes a greater loss on the male heart has been found out |
| B．scientists are on the way to finding out why the male heart loses more of the cells |
| C．the team has done something to prevent the male from suffering the greater loss |
| D．women over 70 could lose more heart cells than those at the age of 20 |
Samuel de Champlain was a French explorer, navigator (航海家), and mapmaker. He explored much of eastern Canada and became known as the “Father of New France”.
Born into a family of sailors, Champlain, while still a young man, began exploring North America. In 1603, he sailed up the Saguenay River and the St. Lawrence River. From 1604 to 1607 Champlain joined in the exploration and settlement of the first permanent (永久的) European settlement north of Florida. Then, in 1608, he established the French settlement that is now Quebec City. He also made the first accurate (精确的) map of the Canadian coast.
Champlain spent most of the rest of his life going between France and Canada. His goals were to map North America and find a quicker way to get to the Pacific Ocean.
In 1629 Quebec was controlled by the English and Champlain was taken to England as a prisoner. When Canada was returned to France in 1633 Champlain returned to Canada as governor of Quebec and remained in Quebec until his death on Christmas Day in 1635.
Champlain was the first European to explore and describe the Great Lakes, and published maps of his journeys and reports of what he learned from the natives and the French living among the natives. Champlain was memorialized as the “Father of New France”, and many places and streets in North America use his name. The most famous of these is Lake Champlain, which lies between northern New York and Vermont.
Which is the correct order of the events about Champlain?
a. established the settlement in Canada
b. travelled up the St. Lawrence River
c. returned to Canada as governor of Quebec
d. was taken to England
| A．b-a-c-d | B．b-a-d-c |
| C．a-d-b-c | D．a-b-d-c |
We can learn from the text that Champlain _____.
| A．was important to Canadian history |
| B．was famous for the lake named for him |
| C．was the first person to explore North America |
| D．was the first family member to work on a ship |
The underlined word “memorialized” in the last paragraph probably means “_____”.
| A．described | B．chosen |
| C．remembered | D．trusted |
What's the best title for the text?
| A．Exploration of North America |
| B．Origin of Lake Champlain |
| C．Foundation of Quebec |
| D．Father of New France |
Have you ever heard of Paynes Prairie? It is one of the most important natural and historical areas in Florida. Paynes Prairie is located near Gainesville. It is large, 21,000 acres. This protected land is called a preserve. The Florida Park Service manages the preserve.
The Paynes Prairie basin was formed when limestone dissolved and the ground settled. It is covered by marsh(沼泽)and wet prairie vegetation. There are areas of open water. During brief periods it has flooded enough to be considered a lake. Except for that, the basin has changed little through time.
Man has lived on Paynes Prairie a very long time. He lived there as far back as 10,000 B. C. At one time, the Seminoles lived there. The prairie is thought to have been named after King Payne, a Seminole chief. During the late 1600s, the largest cattle ranch in Florida was on Paynes Prairie. Today, Paynes Prairie is preserved land. It is occupied by visitors and Florida Park Service employees.
Willam Bartram visited Paynes Praire. Bartram was the first person who portrayed (described) nature through personal experience as well as scientific observation. He lived 200 years ago. He visited Paynes Prairie in 1774. At that time he described it. He called Paynes Prairie the “great Alachua Savannah.”
Most of the animal life, which Bartram described, is still here. A large number of sandhill cranes, hawks and waterfowl are here in winter. The animal diversity is increased by the presence of pine flatwoods, hammock, swamps and ponds.
The Paynes Prairie Preserve State Park is open year round. The Florida Park Service works hard so that the park will appear as it did in the past. It offers many opportunities for recreation. At the park you can camp and picnic. You can hike and bike. You can boat and fish. You can ride on horse trails. And you can see lots of nature and wildlife. You can see Florida as it was in the early days.
Paynes Prairie is a part of our Florida history. It is an example of our Florida natural resources. It is a place for recreation. Paynes Prairie is an important experience of the Real Florida.How was the Paynes Prairie basin formed?
| A．By the Seminole Indians. |
| B．By the Florida Park Service. |
| C．From dissolved limestone and the ground settling. |
| D．From lots of flooding and wet prairie vegetation. |
The underlined word “diversity” means “.”
| A．variety | B．society | C．population | D．area |
All of the following are true EXCEPT that __.
| A．Paynes Prairie has changed little through time |
| B．Paynes Prairie is covered by wet prairie grasses |
| C．there used to be a big cattle farm on Paynes Prairie |
| D．William Bartram was the first person to visit Paynes Prairie |
The purpose of the passage is to .
| A．call on people to protect widlife |
| B．attract people to this preserved park |
| C．show you the formation of Paynes Prairie |
| D．introduce the recorded history of Paynes Prairie |
On June 17, 1774, the officials from Maryland and Virginia held a talk with the Indians of the Six Nations. The Indians were invited to send boys to William and Mary College. In a letter the next day they refused the offer as follows:
We know that you have a high opinion of the kind of learning taught in your colleges, and that the costs of living of our young men, while with you, would be very expensive to you. We are convinced that you mean to do us good by your proposal; and we thank you heartily. But you must know that different nations have different ways of looking at things, and you will therefore not be offended if our ideas of this kind of education happen not to be the same as yours. We have had some experience of it. Several of our young people were formerly brought up at the college of the northern provinces: they were taught all your sciences; but when they came back to us, they were bad manners, ignorant of every means of living in the woods – they were totally good for nothing.
We are, however, not the less obliged by your kind offer, though we refuse to accept it; and, to show our grateful sense of it, if the gentlemen of Virginia will send us a dozen of their sons, we will take care of their education, teach them all we know, and make men of them.The passage is about ____.
| A．the talk between the Indians and the officials |
| B．the colleges of the northern provinces |
| C．the educational values of the Indians |
| D．the problems of the Americans in the mid-eighteen century |
The Indian chief’s purpose of writing the letter seems to be to ____.
| A．express their opinions on equal treatment |
| B．politely refuse a friendly offer |
| C．show their pride |
| D．describe Indian customs |
According to the letter, the Indians believed that ____.
| A．it would be better for their boys to receive some schooling |
| B．they were being insulted by the offer |
| C．they knew more about science than the officials |
| D．they had better way of educating young men |
Different from the officials’ view of education, the Indians thought ____.
| A．young women should also be educated |
| B．they had different goals of education |
| C．they taught different branches of science |
| D．they should teach the sons of the officials first |
Be careful what you say around your dog. It might understand more than you think.
A border collie named Rico recognizes the names of about 200 objects, say researchers in Germany. The dog also appears to be able to learn new words as easily as a 3-year-old child. Its word-learning skills are as good as those of a parrot or chimpanzee(黑猩猩).
In one experiment, the researchers took all 200 items that Rico is supposed to know and divided them into 20 groups of 10 objects. Then the owner told the dog to go and fetch one of the items and bring it back. In four tests, Rico got 37 out of 40 commands right. As the dog couldn’t see anyone to get clues, the scientists believe Rico must understand the meanings of certain words.
In another experiment, the scientists took one toy that Rico had never seen before and put it in a room with seven toys whose names the dog already knew. The owner then told Rico to fetch the object, using a word the dog had never heard before.
The correct object was chosen in seven out of l0 tests, suggesting that the dog had worked out the answer by process of elimination(排除法). A month later, Rico remembered half of the new names, which is even more impressive.
Rico is thought to be smarter than the average dog. For one thing, Rico is a border collie, a breed (品种)known for its mental abilities. In addition, the 9-year-old dog has been trained to fetch toys by their names since the age of nine months.
It’s hard to know if all dogs understand at least some of the words we say. Even if they do, they can’t talk back. Still, it wouldn’t hurt to sweet-talk your dog every now and then. You might just get a big, wet kiss in return!From paragraph 2 we know that __.
| A．animals are as clever as human beings |
| B．all dogs are smarter than parrots and chimpanzees |
| C．chimpanzees have very good word-learning skills |
| D．all dogs have similar learning abilities as 3-year-old children |
Both experiments show that .
| A．Rico is smart enough to get all commands right |
| B．Rico can recognize different things including toys |
| C．Rico has developed the ability of learning mathematics |
| D．Rico won’t forget the names of objects once recognizing them |
Which of the following statements is true?
| A．The purpose of the experiments is to show the border collie’s mental abilities. |
| B．Rico has a better memory partly because of its proper early training. |
| C．The border collie is world-famous for recognizing objects. |
| D．Rico is born to understand its owner’s commands. |
What does the writer want to tell us?
| A．To train your dog. |
| B．To talk to your dog. |
| C．To be friendly to your dog. |
| D．To be careful with your dog. |
Robert Owen was born in Wales in 1771. At the age of ten he went to work. His employer had a large private library so Owen was able to educate himself. He read a lot in his spare time and at nineteen he was given the job of superintendent(监工) at a Manchester cotton mill. He was so successful there that he persuaded his employer to buy the New Lanark mill in Scotland.
When he arrived at New Lanark it was a dirty little town with a population of 2,000 people. Nobody paid any attention to the workers’ houses or their children’s education. The conditions in the factories were very bad. There was a lot of crime and the men spent most of their wages on alcoholic drinks.
Owen improved the houses. He encouraged people to be clean and save money. He opened a shop and sold the workers cheap, well-made goods to help them. He limited the sale of alcoholic drinks. Above all, he fixed his mind on the children's education. In 1816 he opened the first free primary school in Britain.
People came from all over the country to visit Owen’s factory. They saw that the workers were healthier and more efficient than in other towns. Their children were better fed and better educated. Owen tried the same experiment in the United States. He bought some land there in 1825, but the community was too far away. He could not keep it under control and lost most of his money.
Owen never stopped fighting for his idea. Above all he believed that people are not born good or bad. He was a practical man and his ideas were practical. “If you give people good working conditions”, he thought, “they will work well and, the most important thing of all, if you give them the chance to learn, they will be better people.”For Owen, his greatest achievement in New Lanark was _____________.
| A．improving worker’s houses |
| B．helping people to save money |
| C．preventing men from getting drunk |
| D．providing the children with a good education |
From the passage we may infer that Owen was born ___________.
| A．into a rich family | B．into a noble family |
| C．into a poor family | D．into a middle class family |
We may infer form the passage that no children in Britain could enjoy free education until ___.
| A．1771 | B．1816 | C．1825 | D．1860 |