请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。
注意：每空格1个单词。
For years, the automobile industry has been testing vehicles that use hydrogen as fuel. Now, people across the United States have had a chance to see and even drive cars that get power from hydrogen fuel cells (燃料电池).
But the hydrogen fuel cell is not a new idea. The fuel cell was first invented by Sir William Grove of Britain in 1839. Since then, many different designs, have been invented. There is one place where fuel cells are a proven technology: in space. The American space agency used fuel cells in its Apollo spaceships in the twentieth century.
The most useful fuel cell for transportation purposes is the Polymer Electrolyte Membrane, or P.E.M. fuel cell. It is simple and can operate at temperatures of sixty to eighty degrees Celsius. That is much lower than other fuel cell designs. A P.E.M. fuel cell has two sides divided by a thin membrane (膜). Hydrogen gas is forced through one side where it comes in contact with a reactive material containing the metal platinum(铂). The membrane separates the electrons(电子) from the protons(质子) in the hydrogen atoms. The protons pass through it to the other side of the fuel cell. But the electrons are captured to do work; like powering a motor. Oxygen from the air is forced into the other side of the fuel cell. There, the gas meets the protons that have passed through the membrane. They combine to form water and heat. A single fuel cell does not produce a lot of electricity. But when many fuel cells are combined, they can produce enough electricity to power a vehicle. The product of the chemical reaction that powers fuel cells is water. This makes fuel cells a very clean technology.
Hydrogen fuel cell cars have been slow to develop because of many technical problems that have to be solved. For example, it is unclear how long the membranes in P.E.M. fuel cells will last. Also, fuel cells need water for their chemical reactions. They must be designed to start easily at low temperatures and in dry climates. And smaller, less costly fuel cells must be designed before they can truly take the place of gasoline engines. Now more models of fuel cell vehicles are being tested than ever before. The threat of climate change and the high cost of oil have increased interest in these vehicles that do not cause pollution.
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Title |
More Models of Hydrogen Cars Being Tested |
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The progress of hydrogen fuel cell |
·1.________ by Sir William Grove in 1839. ·Designed 2.________ ever since. ·Used in Apollo spaceships in the twentieth century. |
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Operating principle of P.E.M. |
·It has two sides divided by a thin membrane. ·Hydrogen gas from one side 3.________ the active metal platinum. ·The electrons are 4.________ from the protons in the hydrogen atoms. ·The protons pass through the fuel cell to the other side. ·Oxygen from the air is5.________ into the other side of the fuel cell. ·The gas meets the protons，and then water and heat are6. ________ |
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Reasons for slow 7.___________ of hydrogen fuel cell cars |
·There are many technical problems8. ________ ·The durability of the membranes in P.E.M. fuel cells is not clear. ·They have to start easily at 9.________ temperatures and in dry climates. ·They must be smaller and less costly before 10.________ gasoline engines. |
“Luck is a matter of preparation meeting opportunity,” said the American talk show host Oprah Winfrey. I’ve never watched her show, but when a self-made billionaire gives life advice it’s probably worth listening to.
Her point is that blind luck is very rare. You may have to be lucky to find a good job these days but that does not mean you should sit at home waiting for the opportunity to come to you. If you’re a Chinese, you may already be familiar with the tale of a farmer waiting by a tree stump(树桩) for a rabbit to run out and break its neck.
A book by the UK psychologist Richard Wiseman, called The Luck Factor, argues we can all make ourselves luckier. It’s not about going to a temple to burn some incense(香) hopes that the gods will give you good fortune; it’s practical advice you can follow each day.
Wiseman conducted an experiment as part of his studies. First he divided volunteers into two groups; those who said they were lucky in life and those who said they were not. He gave everyone a newspaper and asked them to look through it to count how many photographs it had inside. On average, the unlucky people took about two minutes to count the photographs while the lucky people took just seconds. Why? On the second page of the newspaper, a command, “Stop counting. There are 43 photographs in this newspaper,” was written in big letters. The unlucky people mostly did not spot the message.
It’s easy to compare this situation to a young person looking for jobs in a local paper. They might search so hard for one type of position that they miss an even better opportunity. People who are “lucky”, in fact, keep an open mind and don’t go through the same routine every day.
I first came to China in 2002 when it was considered a rather strange thing to do. Like many foreigners, my plan was to teach English for one year. Seven years later, and still here, I’ve had many great opportunities such as writing for newspapers and magazines. I did not dream these would have been possible. I’ve also never been sick, had an accident, got into a fight or had problems with the police. Coincidence? After reading about Professor Wiseman’s studies I think not.
As Wiseman advises, I usually trust my own judgment. Your friends and parents may give you advice based on rational thinking, but it’s important to consider how you feel about each choice you make. Your feeling acts as a warning for a potential problem.
Finally, try to turn bad luck into good. Even if you do fall down and break a leg, the time spent at home can be used wisely to study English.
1.Which of the following proverbs most agrees with the writer’s point?
A. Make the best of a bad job.
B. Rome was not built in a day.
C. All is not gold that glitters.
D. A good heart conquers ill fortune.
2.What do you know about Oprah Winfrey?
A. She became famous through her family background.
B. She is a British talk show host.
C. She became successful by her own effort.
D. She was very lucky and seldom suffered setbacks in her life.
3.The writer quoted the Chinese tale of a farmer in order to show __________.
A. man can conquer nature
B. luck is in your own hand
C. bad luck can turn into good
D. you should not sit at home waiting for the opportunity to come to you
Recently there was a major discovery in the scientific research—the mapping of all DNA in a human gene（基因）is complete. Couple of years ago, this seems an impossible task for scientist to accomplish. All this progress in science leads us to believe that the day, when the human being will be cloned, is not far away. Human cloning has always been a topic of argument，in terms of morality or religion.
Taking a look at why cloning might be beneficial, among many cases, it is arguable that parents who are known to be at risk of passing a genetic limitation to a child could make use of cloning. If the clone was free of genetic limitations. Then the other clone would be as well. The latter could foe inserted in the woman and allowed to ripen to term. Moreover，cloning would enable women, who can’t get pregnant, to have children of their own.
Cloning humans would also mean that organs could be cloned, so it would be a source of perfect transfer organs. This, surely would be greatly beneficial to millions of unfortunate people around the world that are expected to lose their lives due to failure of single(or more) organ(s）.It is also arguable that a ban on cloning may be unlawful and would rob people of the right to reproduce and limit the freedom of scientists.
Arguments against cloning are also on a perfectly practical side. Primarily, I believe that cloning would step in the normal “cycle”of life. There would be a large number of same genes., which reduce the chances of improvement，and, in turn, development-the fundamental reason how living things naturally adapt to the ever-changing environment. Life processes failing to do so might result in untimely disappearance. Furthermore, cloning would make the uniqueness that each one of us possesses disappea. Thus, leading to creation of genetically engineered groups of people for specific purposes and, chances are, that those individuals would be regarded as “objects” rather than people in the society.
Scientists haven’t 100 percent. guaranteed that the first cloned will be normal. Thus this could result in introduction of additional limitations in the human “gene-pool”.
Regarding such arguable topics in “black or white” approach seems very innocent to me personally. We should rather try to look at all “shades: of it. I believe that cloning is only legal if its purpose is for cloning organs, not humans. Then we could regard this as for “saving life” instead of “creating life”. I believe cloning humans is morally and socially unacceptable.
1.Which of the following is true according to the passage？
A. Genetic limitation will be beneficial for some women
B. A large number of genes will prevent us from developing
C. Prohibition of cloning might limit the freedom of scientists
D. First cloned humans might be normal according to scientists
2.What’s the author’s opinion on cloning?
A. Cloning should be entirely banned
B. Cloning should be used in creating life
C. Cloning will take away the right to reproduce
D. Cloning is acceptable if it is used for cloning organs
3.Where can you read this article?
A. In a story book. B. In a magazine. C. In a science fiction D. In a brochure
4. Which of the following shows the structure of the passage
He’s out there somewhere, an instant icon in the records of American conflict, the final big-game hunter. But a puzzle, too, his identity would be kept a secret for now, and maybe forever.
He is the unknown shooter. The nameless, faceless triggerman who put a bullet in the head of the world’s most notorious（臭名昭著的）terrorist, Bin Laden.
He’s likely between the ages of 26 and 33, says Marcinko, founder of the “SEALs Team 6” that many believe led the attack on Bin Laden in Abbottabad, Pakistan. He’ll be old enough to have had time to hurdle the extra training tests required to join the counter-terrorism unit, yet young enough to stand the body-punishing harshness of the job. The shooter’s a man, it’s safe to say, because there are no women in the SEALs. And there’s a good chance he’s white, though the SEALs have stepped up efforts to increase the number of minorities in their ranks, Marcinko and Smith say.
He was probably a high school or college athlete, Smith says, a physical specimen who combines strength, speed and wisdom. “They call themselves ‘tactical athletes,’” says Smith, who works with many future SEALs in his Heroes of Tomorrow training program in Severna Park. “It’s getting very scientific.”
Marcinko puts it in more conventional terms: “He’ll be ripped,” says the author of the best-selling autobiography “Rogue Warrior.” “He’s got a lot of upper-body strength. Long arms. Thin waist. Flat stomach.”
On this point, Greitens departs a bit. “You can’t make a lot of physical assumptions,” says the author of “The Heart and the Fist: The Education of a Humanitarian, the Making of a Navy SEAL.” There are SEALs who are 5 feet 4 and SEALs who are 6 feet 5, Greitens says. In his training group, he adds, there were college football boys who couldn’t hack it; those who survived were most often men in good shape, but they also had a willingness to show their concerns in favor of the mission.
The shooter’s probably not the crew-cut（平头）, neatly shaven ideal we’ve come to expect from American fighting forces. “He’s bearded, rough-looking, like a street naughty boy,” Marcinko supposes. “You don’t want to stick out.” Marcinko calls it “modified grooming standards.”
His hands will be calloused（长老茧）, Smith says, or just rough enough,” as Marcinko puts it. And “he’s got frag in him somewhere,” Marcinko says, using the battlefield shorthand for “fragments” of bullets or explosive devices. This will not have been the shooter’s first adventure. Marcinko estimates that he might have made a dozen or more deployments（部署）, tours when he was likely to have dealt with quite a number of dangerous situations, getting ready any time for explosive devices or bullets.
1.Which of the following is most likely to be the title of the passage?
A. Who shot Bin Laden? B. What do the SEALS do?
C. How can boys be SEALS? D. What SEALS are like?
2. From the passage we can know that the writer ___________.
A. knows clearly what the shooter is like B. doubts whether Bin Laden is dead
C. is certain that the shooter is a man D. is not sure of the shooter’s gender
3.We can say for sure according to the passage that ___________.
A. the shooter will eventually be revealed in the Press
B. the writer is a person who is curious about the shooter
C. the writer is a detective who tries to arrest the shooter
D. the shooter is a strong man with a pair of rough hands
4.Which of the following are the names of writers mentioned in the passage?
①. Marcinko ②. Greitens ③. Smith ④. Abbottabad
A. ①④ B. ③④ C. ②③ D. ①②
Here’s this week’s list of four open jobs throughout the local area. Whether you’re unemployed and need a job or you are just sick of the one you have, Roswell Patch wants to help. We know new jobs can be hard to come by these days, which is why we’ll try to post a selection of jobs we’ve found in the area on the site each week. Happy hunting!
Part-time Spanish Instructor-World Language Institute, Inc. – Roswell.
World Language Institute, Inc. in Roswell is currently hiring a part-time, native-speaking Spanish instructor. Applicants must be able to pass a background check and drive a 15-passenger bus to pick up students from several schools, from 2 p. m. – 6 p. m. Monday-Friday. The position pays $ 10 per hour. More information about the job is available online.
Experienced Servers – Chill’s – Alpharetta
Chili’s in Alpharetta is seeking experienced servers to add to its team. Qualifications will include being clean and neat and having great attitude and customer service skills. The pay is $ 2.13, plus tips. Stop by the store to fill out an application. More information about this position is available online.
Registered Nurese-North Fulton Regional Hospital-Roswell
North Fulton Regional Hospital is looking for a RN/Registered Nurse to fill a 12-hour night shift. Applicants must be registered and previous hospital experience is preferred. More information about the position is available online.
Software Engineer-ControlScan-Alpharetta
ControlScan in Alpharetta is hiring a software engineer. Applicants should have five or more years of relevant experience, as well as advanced knowledge of computer technology. Pay is commensurate（相称）with experience. More information about the position can be found online.
1.Where can we most probably rend the passage?
A. In a newspaper. B. On a website. C. In a magazine. D. In a textbook.
2.What does the underlined word "sick" mean?
A. Ill. B. Absent. C. Bored. D. Unfamiliar
3.World Language Institute, Inc. is looking for____.
A. a school bus driver. B. a full-time teacher
C. a Spanish teacher D a Spanish manager
4.Who will mainly work at night?
A. Jane, hired by North Fulton Regional Hospital.
B. John, hired by World Language Institute. Inc.
C. Robert, hired by ControlScan.
D. Sally, hired by Chili’s.
I always long for romantic moments, like a little girl longing for candies．However, my husband is my complete 36 . His inability to bring romantic moments into our life has made me get tired of our 37 . One day, I finally told him that I wanted a divorce.
“Why?” he asked, 38 .
“I am tired; there are no 39 for everything in the world!” I answered.
He kept 40 , seeming to be in deep thought, with a lighted cigarette in his hands. Finally he asked, “What can I do to change your 41 ?”
Looking deep into his eyes I slowly answered, “Let’s say, I want a flower on a mountain cliff and picking the flower will cause your 42 . Will you do it for me?”
He answered, “I will give you my answer tomorrow.”
I 43 the next morning, finding a piece of paper on the dining table, which read: “My dear, I would not pick that flower for you, but please allow me to 44 .”
My feeling of disappointment only 45 , but I continued reading:
“You always leave the 46 keys behind, so I have to save my legs to 47 home to open the door for you. You always like to stay indoors and I 48 that you will feel too lonely, so I have to save my mouth to tell you jokes and stories. You always stare 49 the computer and that will do nothing 50 for your eyes, so I have to save my eyes so that when we grow 51 , I can help to clip your nails. Thus, my dear, 52 I am sure that there is someone who loves you more than I do, I could not pick that flower yet, and die.”
My tears fell on the 53 and I continued reading:
“Now that you have finished reading my answer, if you are 54 , please open the front door for I am standing outside 55 your favorite bread and fresh milk.”
Love, not words, wins arguments.
1.A. supporter B. opposite C. follower D. advocate
2.A. marriage B. connection C. career D. future
3.A. annoyed B. shocked C. frightened D. amused
4. A. results B. signs C. causes D. reasons
5. A. easy B. normal C. silent D. calm
6.A. habit B. feeling C. attitude D. mind
7.A. death B. injury C. happiness D. trouble
8.A. hurried up B. looked up C. woke up D. went up
9.A. love B. explain C. stay D. change
10.A. arose B. disappeared C. reduced D. increased
11.A. car B. office C. bicycle D. house
12.A. leave B. walk C. rush D. get
13.A. worry B. think C. believe D. remind
14. A. at B. to C. on D. in
15.A. bad B. good C. terrible D. important
16.A. weak B. ill C. old D. close
17.A. unless B. if C. since D. because
18. A. photos B. flowers C. floor D. letter
19.A. hungry B. thirsty C. satisfied D. regretted
20.A. buying B. bringing C. heating D. catching
