Smaller than your fist, your healthy heart just goes on and on. It will beat more than 60 times a minute for 70 years or more. That’s something that most of us take for granted. But it’s an amazing fact.
60 times a minute for 60 minutes is 3,600 times. What physical thing can most of us do 3,600 times in one hour? Blink? Maybe. Tap our fingers on the desk? No. Jump up and down? Certainly not! But our heart keeps beating, hour after hour. Every day, it pumps almost 2,000 gallons of blood through our blood vessels(血管). It takes you about five years to drink 2,000 gallons of water.
And, unlike your knees or your back, your heart does all this work without ever complaining(抱怨)! You never know that it’s even there. Your heart is such a reliable “silent partner” that people forget to care for it. For many, the first indication(迹象)that their heart isn’t working properly is a serious heart illness! Over 650,000 Americans die of some kind of heart disease every year. Cancer kills 560,000, stroke kills 143,000, and accidents kill 118,000 Americans annually.
Like accidental deaths, many heart disease-related deaths can be avoided if people simply follow the advice of the experts. Unfortunately, most people seem to listen to a little voice in their head that says, “It won’t happen to me. ” So these people keep on smoking and drinking. They continue to eat too much meat. And their only “exercise” is getting off the sofa to get something out of the fridge. Please follow the following steps to keep your heart healthy. The text is most probably taken from a (an) __________.
A.art book | B.science fiction |
C.healthy magazine | D.psychology book |
Which of the following physical activities can keep going on and on?
A.Blink. | B.Jump. | C.Finger tap. | D.Heart beat. |
According to the numbers mentioned in paragraph 3, we can know __________.
A.Accidents can be the biggest “killer” in America every year. |
B.In America, heart disease causes the highest death rate annually. |
C.Cancer causes more threat than any other diseases for Americans. |
D.Recently, nobody died of stroke or heart disease in America. |
What do we know about our healthy hearts?
A.our healthy hearts work with many complains as our knees. |
B.our healthy hearts can pump 3,600 gallons of blood everyday. |
C.our healthy hearts are smaller than our fists. |
D.our healthy hearts can beat 60 times in one hour. |
What do you think the next paragraph is about?
A.Some tips for keeping a healthy heart. |
B.Some suggestions for avoiding accidental deaths. |
C.Some reasons for doing regular exercise. |
D.Some exercise for keeping a healthy lifestyle. |
As a boy, Charles Robert Darwin collected anything that caught his interest: insects, coins and interesting stones. He was not very clever, but Darwin was good at doing the things that interested him.
His father was a doctor, so Darwin was sent to Edinburgh to study medicine, and was planned to follow a medical career. But Charles found the lectures boring. Then his father sent him to Cambridge University to study to be a priest. While at Cambridge, Darwin’s interest in zoology and geography grew. Later he got a letter from Robert FitzRoy who was planning to make a voyage around the world on a ship, the Beagle. He wanted a naturalist to join the ship, and Darwin was recommended(推荐). That voyage was the start of Darwin’s great life.
As the Beagle sailed around the world, Darwin began to wonder how life had developed on earth. He began to observe everything. After he was home, he set to work, getting his collection in order. His first great work The Zoology of the Beagle was well received, but he was slow to make public his ideas on the origin of life.
Later Darwin and Wallace, another naturalist who had the same opinions as Darwin, produced a paper together. Darwin’s great book, On the Origin of Species by Means of Natural Selection (《物种起源》) appeared. It attracted a storm. People thought that Darwin was saying they were descended from monkeys. What a shameful idea! Although most scientists agreed that Darwin was right, the Church was still so strong that Darwin never received any honors for his work.
Afterwards, he published another great work, The Descent of Man. His health grew worse, but he still worked. “When I have to give up observation, I shall die,” he said. He was still working on 17, April, 1882. He was dead two days later.Which of the following would be the best title for the passage?
A.Charles Darwin’s ideas |
B.Charles Darwin’s works |
C.Father of modern biology: Charles Darwin |
D.The greatest scientist: Charles Darwin |
Darwin’s father sent him to Edinburgh to _____.
A.make him like natural history |
B.make him become a doctor |
C.let him change his hobbies |
D.have him give up his collection |
According to the passage, Charles Darwin’s whole life was changed by _____.
A.his study at Cambridge University |
B.his collection of coins |
C.the naturalists at Cambridge |
D.the voyage of the Beagle |
The underlined part “they were descended from monkeys” probably means “_____”.
A.they gave monkeys life |
B.they were different from monkeys |
C.they were developed from monkeys |
D.they had to live with monkeys |
Work is a part of living —my grandparents understood that. They lived and worked on a farm that has been in my family for 150 years. They raised chickens for eggs , pigs and cattle for meat . Cows were kept for milk and the cream, from which Grandma made butter and cheese. What little yard they had became a garden.
The Depression, therefore, didn’t make much change in their lives. But it did bring an unending flow of men out of work, drifting from job to job, to the farm. The first to show up at the door of the kitchen was a man in rags. He took off his hat and quietly explained that he hadn’t eaten for a while. Grandpa stood watching him a bit , then said , “There’s a stack of firewood against the fence behind the barn (谷仓). I’ve been needing to get it moved to the other side of the fence . You have just about enough time to finish the job before lunch .”
Grandma said a surprising thing happened. The man got a shine in his eyes and he hurried to the barn at once. She set another place at the table and made an apple pie. During lunch, the stranger didn’t say much, but when he left, his shoulders had straightened. “Nothing ruins a man like losing his self-respect,” Grandpa later told me.
Soon after, another man showed up asking for a meal. This one was dressed in a suit and carried a small old suitcase. Grandpa came out when he heard voices. He looked at the man and then offered a handshake.” There is a stack of firewood along the fence down behind the barn I’ve been meaning to get it moved. It’d sure be a help to me . And we’d be pleased to have you stay for lunch.” The fellow set his suitcase aside and neatly laid his coat on top. Then he set off to work.
Grandma says she doesn’t remember how many strangers they shared a meal with during those Depression days-or how many times that stack of wood got moved.When he was asked to move a stack of firewood, the first man who asked for a meal got a shine in his eyes for he was glad that .
A.he had found a good job |
B.he would have something to eat |
C.he would no longer suffer from the Depression |
D.he would get what he wanted without losing his self-respect |
The writer’s grandfather asked those jobless men to move the stack of firewood because ____ .
A.he didn’t want them to have a meal free of charge |
B.he had been needing to get it moved |
C.he wanted to help them in his own way |
D.he wanted to show them his kindness and respect |
The writer’s grandfather was all of the following but .
A.kind | B.thoughtful | C.wealthy | D.sympathetic |
The best title for the story would be .
A.The Depression |
B.The Pleasure of Helping Others |
C.No Pains , No Gains |
D.Work-A Part of Living |
Thomas Edison was one of ten said to be the greatest genius of his age.There are only a few men in all of the history, who have changed the lives of other men as much as the inventor of the first useful electric light.But Edison could never be happy only because someone said he was a genius.“ There is no such thing as genius,”Edison said.He said that what people called genius was mostly hard work.
But Edison was a dreamer as well as a worker..From his earliest days as a child he wondered about the secrets of nature.Nature, he often said,is full of secrets.He tried to understand them;then, he tried to learn what could usefully be done with them.
Edison enjoyed thinking. He knew that most people will do almost anything instead of the difficult work of thinking, especially if they do not think very often. But he knew, too, that thinking can give men enjoyment and pleasure.
Edison could not understand how anyone could be uninterested in life. As he loved to think, he also loved to work. On the day he became 75 years old, someone asked him what ideas he had about life. “ Work,” he answered. “Discovering the secrets of nature and using them to make men happier.” He said he had enough inventions in his mind to give him another 100 years of work.Which of the following is NOT true according to the passage?
A.Edison invented the electric light. |
B.Many other people have changed Edison’s life. |
C.Edison has changed the life of many other people. |
D.Few men in history can change other people’s life. |
Edison thought __________.
A.he could be happy if he was a genius |
B.genius plays the most important part in one’s success |
C.hard work could do better than genius |
D.genius could do better than hard work |
Edison was __________.
A.very much interested in nature |
B.interested in discovering the secrets of nature |
C.interested in changing people’s ideas |
D.uninterested in making people happier by discovering the secrets of nature |
In Edison’s opinion, _________.
A.thinking can supply people with enjoyment and pleasure as well as help |
B.people’s successs lies mostly in genius |
C.hard work is the second important thing in making people successful |
D.there are few secrets for him to discover later |
The last sentence in the passage most probably implies _________.
A.life is too short for Edison to invent more for human beings |
B.Edison made 100 inventions in his life |
C.Edison was able to live and work for 100 years |
D.People of his time were ready to give Edison another 100 years’ work |
When I was six, Dad brought home a dog one day, who was called “Brownie”. My brothers and I all loved Brownie and did different things with her. One of us would walk her, another would feed her, then there were baths, playing catch and many other games, Brownie, in return. loved each and every one of us. One thing that most touched my heart was that she would go to whoever was sick and just be with them .We always felt better when she was around.
One day, as I was getting her food, she chewed up(咬破)one of Dad’s shoes, which had to be thrown away in the end. I knew Dad would be mad and I had to let her know what she did was wrong. When I looked at her and said, ”Bad girl,” she looked down at the ground and then went and hid. I saw a tear in her eyes.
Brownie turned out to be more than just our family pet, she went everywhere with us .People would stop and ask if they could pet her. Of course she’d let anyone pet her. She was just the most lovable dog. There were many times when we’d be out walking and a small child would come over and pull on her hair. she never barked(吠) or tried to get away. Funny thing is she would smile. This frightened people because they thought she was showing her teeth. Far from the truth, she lovely everyone.
Now many years have passed since Brownie died of old age. I still miss days when she was with us.What would Brownie do when someone was ill in the family?
A.Look at them sadly. | B.Touch them gently. |
C.Play games with them. | D.Keep them company. |
We can infer from Paragraph 2 that Brownie__________.
A.world eat anything when hungry |
B.felt sorry for her mistake |
C.loved playing hide-and-seek |
D.disliked the author’s dad |
Before Alaska became part of the U.S., it had been owned by Russia. Trading posts and small settlements were scattered along the coast. The rest of land was left unexplored. The Russians were mainly interested in the wealth of furs from the vast herds of seals they found there.
By the mid-1800’s, most of the seal herds had been wiped out, and Russia no longer wanted to keep Alaska. William Seward, Secretary of State for President Johnson, believed the United States should buy Alaska from Russia. President Johnson wasn’t so sure it was a wise way to spend U.S. money, but he agreed to let Seward discuss it with the Russians. Acting quickly, Seward made a deal. On March 30, 1867, he signed an agreement for the U.S. to pay seven million dollars for the land.
Many people thought it was a foolish waste of America’s money. They called the deal “Seward’s folly”. Then gold was discovered in Alaska and public opinion changed quickly.
Seward did not live to see the true value of Alaska. He died in 1872, five years after making the purchase (购买). Each year, Alaska’s natural resources(资源) have brought in many times the $7,000,000 paid for it. Natural gas, coal, oil, lumber, seafood and other minerals, besides the gold first found, have made it a valuable addition to the United States. In 1959, Alaska be-came the 49th state of the United States.The Russians wanted to sell Alaska because ______.
A.they thought it wasn’t a good place |
B.they thought it didn’t belong to Russia |
C.they couldn’t find enough seals there |
D.they wanted to earn more money from the U.S. |
When Seward signed the agreement, many people thought ______.
A.it was a successful deal | B.it had its true value |
C.he wasted U.S. money | D.he was clever |
Which of the following things was found first in Alaska?
A.Gas. | B.Coal. | C.Oil. | D.Gold. |
The best title for this passage would probably be ______.
A.Alaska, a beautiful place | B.Alaska with natural resources |
C.Alaska, the 49th state of the U.S. | D.Alaska, home to seals |