题目内容
Even though the pure water is ____ gives sea water its main properties, the salinity of sea water affects both its weight and freezing point.
A. the one B. which C. what D. that
C
挑战100单元检测试卷系列答案
名题金卷系列答案Still waiting for little green men to make contact? Don't hold your breath.
A leading astronomer has concluded there probably aren't any aliens out there – meaning we are absolutely alone in the universe.
Even though there may be tens of thousands of other distant planets similar in size to Earth, the conditions on them are likely to be too hard to support life-forms such as ET.
Dr Howard Smith, a senior astrophysicist at Harvard University, believes there is very little hope of discovering aliens and, even if we did, it would be almost impossible to make contact.
So far astronomers have discovered a total of 500 planets in distant solar systems – known as extrasolar systems – although they believe billions of others exist.
But Dr Smith points out that many of these planets are either too close to the sun or too far away, meaning their surface temperatures are so bad that they could not support life. Others have unusual orbits which cause vast temperature variations, making it impossible for water to exist – the most important thing for life.
Dr Smith said, "We have found that most other planets and solar systems are wildly different from our own. It means it is highly unlikely there are any planets with intelligent life close enough for us to make contact." But his suggestions contradict other leading scientists who have claimed aliens almost certainly exist.
Only last month Professor Stephen Hawking said the fact that there are billions of galaxies out there made it reasonable to think there were other life-forms in the universe.
Researchers from the University of London have recently suggested that aliens could be living on as many as 40,000 other planets. But Dr Smith said: "Any hope of contact has to be limited to a relatively tiny space around the Earth, reaching maybe 1,250 light years out from our planet, where aliens might be able to pick up our signals or send us their own. But communicating would still take decades or centuries."
【小题1】By saying ＂don’t hold your breath＂, the author advised the reader not to _____.
| A．keep silent | B．give up | C．expect so | D．be afraid |
| A．are too far away from the earth |
| B．are different from the Earth in size |
| C．don’t have rich natural resources |
| D．don’t have a suitable living environment |
| A．they have better explanations about aliens |
| B．aliens certainly exist on many planets |
| C．they disagree with Dr Smith’s suggestion |
| D．aliens can pick up signals from the earth |
| A．There must be other life forms in the universe. |
| B．We can communicate with aliens in decades. |
| C．The chances of finding aliens are slight. |
| D．Many other planets are quite different from the Earth. |
It has been said that Lincoln was always ready to join in a laugh at himself. There is one particular story that he always told with great delight.
In his early days as a lawyer, Lincoln went from town to town to hear and judge legal(法律的)cases. During one of these trips, he was sitting in a train when a strange man came up to him. The stranger looked at the tall clumsy(笨拙的)lawyer and said that he had something he believed belonging to Lincoln. Lincoln was a bit puzzled. He had never seen the man before. He didn’t see how a total stranger could have something of his. Lincoln asked how this could be. The stranger pulled out a penknife and began to explain. Many years before, he had been given the pocketknife. He had been told to keep it until he was able to find a man uglier than himself.
Lincoln’s eyes always sparked when he reached this part of the story. The story always brought smiles to the faces of those who heard it. The tale itself was funny. But even more delightful was the fact that a man as great as Lincoln could still laugh at himself.
【小题1】This passage is about .
| A．a stranger and his strange knife |
| B．Lincoln’s favorite story |
| C．meeting stranger in a train |
| D．Lincoln’s favorite penknife |
| A．liked to make friends | B．liked to tell jokes |
| C．collected penknives | D．was not handsome |
| A．his appearance | B．a good laugh |
| C．being a lawyer | D．being good-humored |
| A．Lincoln, even though great, was not proud. |
| B．Lincoln was a great and proud man. |
| C．Lincoln lacked self-respect. |
| D．Lincoln had a good sense of humor. |
| A．闪耀 | B．暗淡 | C．无神 | D．忧伤 |
Fifteen years ago, I entered the Boston Globe, which was a temple to me then . It wasn’t easy getting hired. I had to fight my way in to a dime-a-word job. But once you were there, I found , you were in .
Globe jobs were for life-guaranteed until retirement. For 15 years I had prospered there—moving from an ordinary reporter to foreign correspondent and finally to senior editor. I 
would have a lifetime of security if I struck with it.
Instead, I had made a decision to leave.
I entered my boss’s office. Would he rage? I wondered. He had a famous temper. “Matt, we have to have a talk, ” I began awkwardly. “I came to the Globe when I was twenty —four. Now I’m forty . There’s a lot I want to do in life. I’m resigning. ”
“To another paper? ” he asked.
I reached into my coat pocket, but didn’t say anything, not trusting myself just then.
I handed him a letter that explain everything. It said that I was leaving to start a new media company. That the Globe had taught me in a thousand ways. That we were at a rare turning point in history, I wanted to be directly engaged in the change.
“I am glad for you , ” he said , quite out of my expectation. “ I just came from a board of directors meeting and it was seventy-five percent discouraging news. Some of that we can do deal with. But much of it we can’t ,” he went on. “I wish you all the luck in the world, ”be concluded. “And if it doesn’t work out , remember ,your star is always high here.”
Then I went out of his office, walking through the newsroom for more good-byes. Everybody was saying congratulations. Everybody—even though I’d be risking all on an unfamiliar venture : all 
the financial security I had carefully built up.
Later, I had a final talk with Bill Taylor, chairman and publisher of the Boston Globe. He had turned the Globe into a billion-dollar property.
I’m resigning, Bill, ” I said. He listened while I gave him the story. He wasn’t looking angry of dismayed either. After a pause, he said, “Golly, I wish I were in your shoes.”
【小题1】 From the passage we know that the Globe is a famous .
| A．newspaper | B．magazine | C．temple | D．church |
| A．he would be able to realize his lifetime dreams |
| B．he would let his long favourite dreams fade away |
| C．he would never have to worry about his future life |
| D．he would never be allowed to develop his ambitions |
| A．he had serious trouble with his boss |
| B．he got underpaid at his job for the Globe |
C．he wanted to work in the new media industry |
| D．he had found a better paid job in a publishing house |
| A．the writer was to fail | B．the writer was stupid |
| C．he would do the same if possible | D．he would reject the writer’s request |
My grandma whom we all called Nanny was a solid, first-generation, Italian immigrant. She came to this country with her family on a tiny ship during World War I when she was only 8 years old. During the trip she survived stormy seas，little food, and an attack by a German U-boat. After getting here，her large family worked hard to build a new life in America. They never had much money but were rich in love.
One day，when I was about 5 or 6 years old, my parents and brothers went on a trip. It was just me and Nanny in the house for the weekend. Nanny seemed so happy to be taking care of me all by herself. She made me a special breakfast that first morning. However, all I could do was to complain about how the food was not how Mom always made it. Nanny quietly put down the plate and went into the living room. I followed a minute later and saw that she had tears in her eyes. It was the first time I had ever seen my strong and proud grandmother cry and I was the one who had caused it.
I walked over to Nanny, climbed on her lap, and for the first time in my short life I did something else too. I apologized without being told to and asked Nanny to forgive me. She smiled, rubbed my head, and told me I was a good boy even though I didn’t feel like one then.
That memory just like my Nanny’s love will stay in my heart forever. It is a sign of both strength and wisdom. Asking for forgiveness helps us to learn, to grow, and to love.
【小题1】Nanny，s family immigrated to America mainly because _____.
| A．they suffered starvation in their homeland |
| B．they wanted to start a rich life in the new land |
| C．they tried to get away from the terrible climate |
| D．their country was in war and they needed peace |
| A．wasn't cooked the way his mom did |
| B．was served a bit later than usual |
| C．was prepared in a special way |
| D．was just to his parents，taste |
| A．surprised | B．ashamed | C．shocked | D．annoyed |
| A．forgiveness can be beneficial to people asking for it |
| B．hardships can make children more indifferent |
| C．grandparents are more tolerant than their grandchildren |
| D．family ties can sometimes be misused |
FU Yuan has been left at home with his grandparents since he was one month old. His mom and dad left to work in Fujian Province. For the past eight years, Fu has only seen his parents three times although they send home 500 yuan every two or three months.
Fu Xiaoyu, 16, has had to live alone since her grandmother passed away three years ago. Her parents do not want to renounce their jobs at a clothing factory in Guangdong Province. Nor can they afford the cost of sending her to a school in the city where they work.
These are just two of the 29 kids that 16-year-olds Huang Ruoqing and Zhang Linna at Beijing No 4 High School talked with this summer in Guixiang Village in Sichuan Province.
What Huang and Zhang learned from their three-day visit shocked them. They wrote down all the kids’ stories in a moving 40-page essay filled with statistical charts.(统计表)
In the poor village with a population of 2,118 people, 582 adults have left to find work, leaving 156 children without parents. Among these so-called left-behind kids, 88 percent of them live with their grandparents, five percent live with uncles or aunts and seven percent have to live on their own.
To Huang and Zhang’s surprise, 80 percent of the children said they love going to school. Even
though, some children have to walk along the hilly roads for two hours to get there.
However, for this village’s students studying is not their first task. Housework, such as helping feed pigs or buffalos(水牛) and taking care of old grandparents, younger sisters or brothers, takes up a considerable amount of their time.
Despite having to work hard at home, over 65 percent of the young interviewees would prefer their parents’ stay away working rather than returning to live with them.
“These kids are understanding and considerate and know how important money is for their families. Their little wishes like having dinner with their parents inspire us never to take what we have had for granted,” Zhang said.
【小题1】
Which of the following statements is NOT TRUE according to the passage?
| A．Fu Xiaoyu’s parents can’t earn enough money to send her to school. |
| B．Huang Ruoqing and Zhang Linna talked with 29 children this summer during their research. |
| C．Some left-behind kids live with uncles, aunts, or grandparents and others live by themselves. |
| D．More than half of the left-behind kids prefer their parents’ staying away working. |
It is implied but not directly stated that
| A．Fu Yuan’s parents send him 500 yuan every 2 or 3 months |
| B．Huang Ruoqing and Zhang Linna wrote an essay according to the left-behind kids’ stories |
| C．Many left-behind kids love studying and going to school in spite of many hardships |
| D．The time that the left-behind kids spend on housework is more than that on study |
What’s the exact meaning of the underlined word “renounce”in the second paragraph?
| A．Keep | B．continue | C．give up | D．get |
Which of the following is the best title of the passage?
| A．Kids Are Left Alone | B．The True Story of Home Alone |
| C．Kids Miss Parents | D．Parents and Kids |