閱讀下面材料,在空白處填入適當?shù)膬热荩ú欢嘤?個單詞)或括號內單詞的正確形式。
Discoveries about the nature of DNA in the 1940s made1. ________ possible for cloning experiments to progress. In 1944 the discovery 2.________ genetic information for each cell was kept in the cell’s DNA gave scientists new ways to attempt 3.________ (clone) animals.
The first cloned animal was a tadpole4. ________ was cloned in 1952. Thomas J. King and Robert W. Briggs believed, based on their clones, that young cells were more viable (可生長發(fā)育的) for the cloning process than adult cells.
The next successful cloning experiments also resulted 5.________ cloned frogs. John Gurdon cloned South African frogs in 1962. His experiments proved that the previous theory that adult cells were 6.________ (able) to be used in the cloning process was wrong. From 1962 to 1965, more frog clones were created from adult frog cells.
While animal cloning had been the focus of cloning experiments, the 1960s also saw7. ________ types of cloning. In 1964 F. C. Steward 8.________ (undertake) an experiment in which he took an adult cell from a carrot plant and successfully cloned the plant.
So far more than 20 different animals, 9.________ (include) dogs, cats, and the famous Dolly, have been cloned, 10. ________ human cloning research has been forbidden in many countries.
科目:高中英語 來源:2016屆高三復習跟蹤檢測英語試卷(20)(解析版) 題型:閱讀理解
閱讀理解。
It is a familiar scene these days: employees taking newly laid?off (下崗) co?workers out for a drink for comfort. But which side deserves sympathy more, the jobless or the still employed? On March 6, researchers at a conference at the University of Cambridge heard data suggesting it's the latter.
Brendan Burchell, a Cambridge sociologist, presented his analysis based on various surveys conducted across Europe. The data suggest that employed people who feel insecure in their jobs show similar levels of anxiety and depression as those who are unemployed. Although a newly jobless person's mental health may “bottom out” after about six months, and then even begin to improve,the mental state of people who are continuously worried about losing their job “just continues to get worse and worse,” Burchell says.
Evolutionary psychologists support this theory by arguing that human beings feel more stress during times of insecurity because they sense an immediate but invisible threat. Patients have been known to experience higher levels of anxiety, for example, while waiting for examination results than knowing what they are suffering from — even if the result is cancer. It's better to get the bad news and start doing something about it rather than wait with anxiety. When the uncertainty continues, people stay in a nonstop “fight or flight” response, which leads to damaging stress.
But not every employee in insecure industries has such a discouraging view, Burchell says. In general, women get on better. While reporting higher levels of anxiety than men when directly questioned, women scored lower in stress on the GHQ 12, even when they had a job they felt insecure about losing. As Burchell explains, “For women, most studies show that any job — it doesn't matter whether it is secure or insecure — gives psychological improvement over unemployment.” Burchell supposes that the difference in men is that they tend to feel pressure not only to be employed, but also to be the primary breadwinner, and that more of a man's self?worth depends on his job.
1.Why do researchers think the still employed deserve sympathy more?
A.They have to do more work since then.
B.They have no chance to find better jobs.
C.They have to work with inexperienced workers.
D.They constantly worry about losing their job.
2.What is most likely to cause a “fight or flight” response?A.Not having a paid job.
B.Fierce competition for jobs.
C.Not knowing what will happen.
D.Pressure to work longer hours.
3.What will the writer talk about following the last paragraph?
A.Advice on preparing a job interview.
B.Advice to those in insecure industries.
C.Some knowledge of psychology.
D.Difference in men and women.
4.What could be the best title for the text?
A.Is It Less Stressful to Get Laid Off Than Stay On?
B.Should Greater Sympathy Be Given to the Jobless?
C.Do Employees Bear More Stress Than Ever Before?
D.Do Men or Women Show Higher Levels of Anxiety?
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科目:高中英語 來源:2016屆高三復習跟蹤檢測英語試卷(6)(解析版) 題型:書面表達
假如你是中學生李平。最近你校規(guī)定:學生在校期間,禁止到校外就餐,F(xiàn)在,請你就此事給校報英文版編輯寫一封信,內容包括:
1.學校制定此規(guī)定的理由;
2.同學們對此規(guī)定的反應及理由;
3.你的看法。
注意:1.詞數(shù)100左右;信的抬頭與結束語已寫好,不計入總詞數(shù);
2.文中不得透露你和所在學校的真實名字。
參考詞匯:食堂canteen
Dear editor,
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
Best wishes!
Yours,
Li Ping
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科目:高中英語 來源:2016屆高三復習跟蹤檢測英語試卷(1)(解析版) 題型:閱讀理解
閱讀理解。
It is 7 am and the alarm is going off. You know you have to be out of bed to catch the bus. But the urge to bury yourself in the bed is ever so strong.
Sounds familiar? Why is it that teens find it difficult to get themselves out of bed in time every morning or stay sharp and focused during the first couple of hours of school?
During adolescence, the body goes through many changes and these include a shift in sleep patterns. Researchers from MIT have been tracking the body's need for sleep in teenagers. They found that though adolescents need as much as 9.5 hours of sleep a day, they get to bed later and later with each passing year. In fact, the sleep cycle shifts later by as much as 12 to 18 minutes each year between the ages of 10 and 20! So by the time a 10?year?old who sleeps at 8 pm grows to be 17 or 18, his body naturally wants to stay up till 10:30 pm or 11 pm.
According to researchers, this is because of a hormone called melatonin (褪黑激素) that is secreted (分泌) by the pineal gland — a tiny structure deep inside the brain. Melatonin regulates the body's natural day?night rhythms. It causes a person to become sleepy by lowering his body's core temperature. In teens, melatonin is secreted much later in the evening and continues to increase throughout the night. This makes it difficult for teens to fall asleep earlier as they did in their younger years. Likewise, the effect of melatonin continues until much later in the morning, making it hard for them to wake up early.
A study found that at least one in four teens is tired and falls asleep in school at least once a week. During sleep, important body functions and brain activities happen. So how can teenagers get their sleep enough? The American Academy of Pediatrics (AAP) recommends that middle and high schools should start later — not before 8:30 am. This should give teens some more time to sleep at night.
1.From Paragraph 2, we can learn that if you sleep late, the next day you should ________.
A.stay sharp B.skip breakfast
C.get up late D.stay up late
2.What does the underlined word “this” in Paragraph 3 refer to?
A.The students want to stay up.
B.The shifts of the sleep cycle.
C.The pineal gland secretes melatonin.
D.The adolescents sleep late.
3.The teens go to sleep later than before because ________.
A.melatonin is secreted much later
B.melatonin regulates the sleep time
C.they sleep a lot in the daytime
D.they need to finish their homework
4.According to AAP's recommendation, middle and high schools should ________.
A.let teens sleep in the day
B.let the students be active
C.delay the start time
D.start later at 8 am
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科目:高中英語 來源:2016屆湖北襄陽五中高三5月高考模擬適應性考試(一)英語卷(解析版) 題型:閱讀理解
As we grow old, we realize that we have so little time to read and there are so many great books that we’ve yet to get around to. Yet re-readers are everywhere around us. For certain fans, re-reading The Lord of the Rings is a conventional practice annually. One friend told me that Jane Austen’s Emma can still surprise him, despite his having read it over 50 times.
New sudden clear understandings can be gained from the process of re-reading. Journalist Rebecca Mead, a long-time Englishwoman in New York, first came across George Eliot’s Middlemarch at 17. Since then, she has read it again every five years. With each re-reading, it has opened up further; in each chapter of her life, it has resonated (引起共鳴) differently. Mead evidenced the large number of ways in which really good books not only stand the test of repeat reads, but also offer fresh gifts each time we crack their spines. These kinds of books grow with us.
Scientists have also recognized the mental health benefits of re-reading. Research conducted with readers in the US found that on our first reading, we are concerned with the “what” and the “why”. Second time round, we’re able to better appreciate the emotions that the plot continues to express. As researcher Cristel Russell of the American University explained, returning to a book “brings new or renewed appreciation of both the great book and its readers.”
It’s true that we often find former selves on the pages of old books (if we’re fond of making notes on the pages). These texts can carry us back to a time and place, and remind us of the kind of person that we were then. We’re changed not only by lived experience but also by read experience—by the books that we’ve discovered since last reading the one in our hand.
More so than the movie director or the musician, the writer calls upon our imaginations, using words to lead us to picture this declaration of love or that unfaithfulness in life. A book is a joint project between writers and readers, and we must pour so much of ourselves into reading that our own life story can become connected with the story in the book.
Perhaps what’s really strange is that we don’t re-read more often. After all, we watch our favourite films again and we wouldn’t think of listening to an album only once. We treasure messy old paintings as objects, yet of all art forms, literature alone is a largely one-time delight. A book, of course, takes up more time, but as Mead confirms, the rewards make it adequately worthwhile.
1.The two books are mentioned in Paragraph 1 mainly to ________.
A. attract the attention of readers
B. introduce the topic of the passage
C. provide some background information
D. show the similarity between re-readers
2.The underlined expression “crack their spines” in Paragraph 2 refers to ________.
A. recite them B. re-read them C. recall them D. retell them
3.It can be learned from the passage that ________.
A. reading benefits people both mentally and physically
B. readers mainly focus on feelings on their first reading
C. we know ourselves better through re-reading experience
D. writers inspire the same imaginations as film directors do
4.The purpose of the passage is to ________.
A. call on different understandings of old books
B. focus on the mental health benefits of reading
C. bring awareness to the significance of re-reading
D. introduce the effective ways of re-reading old books
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科目:高中英語 來源:2015-2016寧夏育才校勤行校區(qū)高二下第二次6月考英語卷(解析版) 題型:閱讀理解
There are a lot of products out there that make your life easier. Some, however, are a little sillier than others — so much that they seem like joke products. Here are a few products that sound crazy, but actually rule.
Sleep Phones
It’s hard to imagine something sillier than a music-playing headband you wear while you sleep, but they exist — and are quite popular. Sleep Phones won’t give you the highest quality sound in the world, but if you prefer to fall asleep to music, they’re far more comfortable than normal headphones. While they’re a bit expensive, they might be perfect for you. There’s also a wireless version (版本) if you prefer.
Onion Goggles
If cutting onion brings on the waterworks no matter what you try, it’s time for desperate measures. We tested a bunch of methods for avoiding onion tears, and found the best solutions came down to cutting the onion under a vent (通風孔), or wearing these stylish and awesome goggles.
Lock Laces
There’re some great ways to tie your shoes better, but if you long for the laceless shoes of your childhood days, Lock Laces are a pretty good choice. They’re basically elastic (有彈性的) laces that remove the need to tie your shoes. Sure, people will make fun of you, but you can make fun of them after they trip over their own untied laces. Or you can make your own slip-on shoes with elastic tubing.
2D-Glasses
Hate 3D-movies, but have to go to one? The difference between 2D-glasses and 3D-glasses lies in their lenses (鏡片). Each lens of 2D-glasses blocks the same picture, so each eye gets the same picture, while each lens of 3D-glasses blocks a different picture, so each eye gets a different picture which the brain interprets as 3D. Now you have a pair of glasses that can save you from the headache caused by wearing 3D-glasses which are popular in our movie theaters. You can buy them or make a pair for yourself.
1.What do we know about Sleep Phones?
A. There are two versions.
B. They’re comfortable but unhealthy.
C. They give you the best quality sound.
D. They’re cheaper than other headphones.
2.The underlined part “brings on the waterworks” in the text probably means _____.
A. makes your eyes water
B. makes your fingers hurt
C. destroys your water pipes
D. adds to your washing work
3.What is the advantage of Lock Laces?
A. They are strong and lasting.
B. They help you walk comfortably.
C. They are stylish and eco-friendly.
D. They save you from tying your shoes.
4.Compared with 3D-glasses, 2D-glasses _____.
A. are cheaper and thinner
B. won’t give you a headache
C. let you see a different picture
D. are more popular in movie theaters
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科目:高中英語 來源:2015-2016學年浙江余姚中學高二下期中考試英語試卷(解析版) 題型:閱讀理解
Emily and her boyfriend had just had a fight. She felt alone and hopeless. Then she went into the kitchen and grabbed what she needed before going back up to her room quietly. She switched on the TV and started eating…and eating…for hours, until it was all gone.
What Emily didn't know at the time was that she was suffering from an illness called binge-eating disorder(BED)(暴飲暴食).
For years, Emily didn't tell anyone what she was doing. She felt ashamed, alone, and out of control. Why don't famous people confess (承認) to BED, as they do to anorexia? It's simple: There's a stigma(污名)involved. “Overeating is seen as very bad, but dieting to be skinny is seen as positive and even associated with determination," says Charles Sophy, a doctor in Beverly Hills , California.
"Some parents or friends may look at a teen with BED and think, 'Oh, a good diet and some will-power will do the trick.' But that's not true," says Dr.Ovidio Bermudez , a baby doctor at the Eating Recovery Center in Denver. "Eating disorders are real physical and mental health issues; it's not about willpower." The focus in treating BED shouldn't be on weight, because as with all eating disorders, the behaviors with food are a symptom of something deeper.
Like most other diseases, genetics may play a big part in who gets BED and who doesn't. If you have a close relative with an eating disorder, that means you're more likely to develop an eating disorder of your own.
Besides, many people with BED have tried at some point or another to control it by going on a diet, but paying more attention to food doesn't help. And it might even make things worse, like it did for Carla, who's 15 now and is recovering from BED. "My parents would always tease me about my weight, so when I was 14, I went on a very restrictive diet," she says. When you can't have something, you only want it more, so every time Carla would have a bite of something that wasn't allowed on her strict diet. She would quickly lose control and binge (狂歡).
1.What does the underlined word "anorexia" in Paragraph 3 mean?
A. Eating too much.
B. Eating junk food.
C. Loss of the wish to eat.
D. Always eating in a hurry.
2.According to Dr. Ovidio Bermudez, people with BED_______ .
A. just need a lot of willpower
B. can recover with a good diet
C. can recover with the help of others
D. need to deal with their health problems
3.What can we learn from Carla's story?
A. BED is an incurable disease.
B. BED has something to do with genes.
C. Going on a diet won't help BED patients.
D. BED patients should pay attention to their food.
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科目:高中英語 來源:2015-2016學年江蘇啟東中學高一下期第二次月考英語試卷(解析版) 題型:單項填空
The Chinese language differs from Western languages _________ it uses characters which stand for ideas, objects or deeds.
A. in that B. so that
C. in which D. for which
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科目:高中英語 來源:2015-2016學年甘肅天水一中高二下期中考試英語試卷(解析版) 題型:閱讀理解
Would it surprise you to learn that, like animals, trees communicate with each other and pass on their wealth to the next generation?
UBC Professor Simard explains how trees are much more complex than most of us ever imagined .Although Charles Darwin thought that trees are competing for survival of the fittest, Simard shows just how wrong he was. In fact, the opposite is true: trees survive through their co-operation and support, passing around necessary nutrition “depending on who needs it”.
Nitrogen(氮) and carbon are shared through miles of underground fungi(真菌) networks, making sure that all trees in the forest ecological system give and receive just the right amount to keep them all healthy. This hidden system works in a very similar way to the networks of neurons(神經(jīng)元)in our brains, and when one tree is destroyed, it affects all.
Simard talks about “mother trees”, usually the largest and oldest plants on which all other trees depend .She explains how dying trees pass on the wealth to the next generation, transporting important minerals to young trees so they may continue to grow .When humans cut down “mother trees” with no awareness of these highly complex “tree societies” or the networks on which they feed, we are reducing the chances of survival for the entire forest.
“We didn't take any notice of it .” Simard says sadly. “Dying trees move nutrition into the young trees before dying, but we never give them chance.” If we could put across the message to the forestry industry, we could make a huge difference towards our environmental protection efforts for the future.
1.The underlined sentence “the opposite is true” in Paragragh2 probably means that trees________.
A. compete for survival
B. depend on each other
C. provide support for dying trees
D. protect their own wealth
2.“Mother trees” are extremely important because they________.
A. look the largest in size in the forest
B. know more about the complex “tree societies”
C. pass on nutrition to young trees
D. seem more likely to be cut down by humans
3.The underlined word “it” in the last paragraph refers to .
A. how “tree societies” work
B. how trees grow old
C. how forestry industry develops
D. how young trees survive
4.What would be the best title for the passage?
A. Old Trees Communicate Like Humans
B. Young Trees Are In Need Of Protection
C. Trees Contribute To Our Society
D. Trees Are More Awesome Than You Think
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