An extinct mountain goat that was once common in the Pyrenees became the first animal to be brought back from extinction. Researchers used frozen DNA to produce a clone, but the newborn kid died within minutes of birth due to breathing difficulties.
The Pyrenean ibex is a type of mountain goat,which is believed to have died out completely in 2000. Before the death of the last known individual(a13-year-old female known as Celia), biologists took cells from her skin and ears. An earlier cloning attempt to use the skin cells failed. But the latest attempt involved the creation of 439 cloned embryos. Of these cloned embryos, 57 were put into the female domestic goats, but only one goat gave birth and the newborn cloned kid died after seven minutes as a result of lung disease.
Researchers say that other cloned animals, including sheep, have been born with similar lung disease, but they say that overall the experiment was a major step forward in the effort to bring the ibex back to its mountain home. The leading researcher Jose Folch says, “the cloned kid was genetically like the ibex;in species such as the ibex,cloning is the only possibility to avoid its complete disappearance.”
The failure to produce a living clone from DNA that was frozen only a decade ago shows the difficulty researchers would face in trying to bring back species that have been extinct(滅絕的) for decades or centuries. Researchers have had the idea of bringing back the Tasmanian tiger, which went extinct in 1936. There are, however, other species that have been seriously suggested for cloning,such as the giant panda, the African bongo antelope, the Sumatran tiger and the pygmy hippo. Supporters believe cloning provides hope of keeping these endangered animals alive before they die out.
1.What do we know about the cloned ibex?
A. It died of lung disease.
B. It was the first cloned animal in the world.
C. It lived for thirteen years.
D. It was born in 2000.
2.Jose Foleh would agree that cloning .
A. is not suitable and should be banned.
B. requires immediate attention.
C. should be carried out cautiously.
D. may help prevent animal extinction.
3.We can conclude from the passage that .
A. cloning has developed quickly in developed countries.
B. no more animals will die out in the future.
C. cloning makes it possible to preserve endangered species.
D. cloning seldom results in physical problems for animals.
4.What’s the best title for this passage?
A、Great advancement in cloning goats.
B、Difficulties in saving extinct animals.
C、Public concerns about cloning.
D、Cloning brought back an extinct species for a while.
科目:高中英語 來源:2014-2015學年高陜西西安臨潼區(qū)華清中學三一?加⒄Z試卷(解析版) 題型:單項填空
—The constant noise around here______ me crazy!
—Calm down.It’s no use complaining.
A. drove B. drives
C. is driving D. had driven
查看答案和解析>>
科目:高中英語 來源:2016屆遼寧沈陽第二中學高三10月月考英語試卷(解析版) 題型:語法填空
閱讀下面材料,在空白處填入適當的內容(不多于3個單詞)或括號內單詞的正確形式。
World Read Aloud Day is celebrated each year on the first Wednesday of March. It __1.___ (start) by the LitWorld. Org website in 2010 and has now reached 65 countries. ___2.__ aim is to encourage people worldwide who cannot read to enjoy the benefits of a book. The website asks everyone ___3.__ (celebrate) the day by taking a book, finding an audience, and reading out aloud. It is about taking action to show the world that the right to read and write __4.___ (belong) to all people.
The website asks visitors to join in the movement to reduce the number of illiterate (不識字的) people in the world. It is ____5.___ (absolute) necessary to help those who cannot read. The website says, “It’s time to start by reading aloud to ___6.__ might like it. Share a book with a child who might need it, share a story with someone who would treasure it, listen patiently __7.__ someone else’s story as they share with you.” The United Nations says, “Literacy involves a variety of learning in ____8.___ (able) individuals to achieve their goals, to develop their knowledge, ___9.__ to participate fully in society.” In that way, World Read Aloud Day __10.___ help make a difference.
查看答案和解析>>
科目:高中英語 來源:2016屆湖南師范大學附屬中學高三月考三英語試卷(解析版) 題型:七選五
根據短文內容, 從短文后的選項中選出能填入空白處的最佳選項。選項中有兩項為多余選項。
Could Organizing Your Home Change Your Life?
Marie Kondo is an expert on organizing and cleaning. She is considered an expert on clearing away unused or unnecessary things, better known as clutter. Actually, she did write a book on the issue, which is called “The Life-Changing Magic of Tidying Up”. 1. It has sold more than 2 million copies.
Marie Kondo says people can improve their lives by changing the way they think about all their stuff-- everything from books, documents and photographs to clothing and personal mementoes. “ 2. ” And this is pretty good.” Ms. Kondo writes.
This is not the first time an organizing expert has written a book on clutter. Other books suggest wonderful things will happen when you organize your home. One book says that if you throw out 50 things from your home, you will actually find your life 3. And still others promise a better job, more money and a perfect family if you simply organize the things that fill your life. 4. She told the Business Insider website that some of her clients have lost weight. “Your self-perception is improved by living in a clean and neat room,” she said. “This can change lifestyles and, in turn, appearances.”
Marie Kondo teaches a method of organizing she calls KonMari. It is more of an event or ceremony. This is the part that followers say makes it more lasting. Ms. Kondo says KonMari creates a different relationship between you and your possessions. If the object meant something to you or served you well, you thank it for its service before throwing or giving it away. In her book, Ms. Kondo suggests that you touch the item and ask one simple question: "Does it bring me joy?" 5.
If it doesn’t, you give it away so that it may give joy to someone else.
A. Her book is a best-seller around the world
B. Marie Kondo makes some of the same claims
C. On the contrary, Marie Kondo disagrees with it.
D. Unnecessary things just take up too much space in your home.
E. If it doesn’t, you give it away so that it may give joy to someone else.
F. Another book says that if you make clutter disappear, you will also lose weight.
G. When you put your house in order, you put your affairs and your past in order too.
查看答案和解析>>
科目:高中英語 來源:2015-2016學年重慶第一中學高二上學期期末英語試卷(解析版) 題型:閱讀理解
Since American students have been introduced into the era of the Massive Open Online Course, the opportunity for cheating appears greater than ever. The all-knowing Google search engine is within easy reach. So how can a teacher handle such a large number of examinees so far away, let alone searching out cheaters taking tests across the Internet?
Using technology, of course. While special services via webcam (攝像頭) and cheating detecting software have been developed now, Mettl, an online company, has developed advanced techniques for netting cheaters, which the company claims are even more reliable and easier to use. Whatever small attempt to cheat, he or she will be found out.
Mettl has adopted a mass of technologies on its test-taking platform, creating a mini monitoring state in an exam. Here’s how it works: A test-taker signs on to Mettl and selects his/her exam from the site’s library of pre-loaded tests. Facial and keystroke recognition technology confirm the person that has signed in is the very person, and the system records both the test-taker (through the webcam) and the test-taker’s screen throughout the test.
Mettl’s technology uses the test-taker’s webcam to detect how many people are using the computer. Soon, it will track eye movement well enough to sense whether the test-taker is looking away from the screen, perhaps to consult a smart phone or a friend in secret. Mettl also monitors the test-taker’s screen and can detect when the test-taker has changed a computer or moved from the test. The system will soon be able to record sound, detecting whether the test-taker is talking or being talked to.
If any wrongdoings are detected, the system flags the incident and reports it back to the test’s administrator. This can bring any number of things, depending on the test-giver’s wishes: a complete shutdown of the exam, a warning message that appears on the test-taker’s screen, even human instructions from the control center.
Mettl is hoping its technology will help it break into the country’s big MOOC markets.
1.From the first paragraph we can infer that .
A. MOOC has replaced the traditional form of education
B. Teachers should be stricter in dealing with cheating
C. Preventing online cheating is a harder job
D. Google is a software designed for cheating
2.How can Mettl help to get rid of cheating online?
A. By equipping teachers with cameras.
B. By asking test-takers to sign in.
C. By providing different tests at a time.
D. By recording the test-takers’ behaviors.
3.We can conclude from the passage that the technology of Mettl is in the MOOC era.
A. unreliable B. promising
C. wasteful D. instructive
4.Which part of a newspaper does the article come from?
A. Health B. Entertainment
C. Education D. Culture
查看答案和解析>>
科目:高中英語 來源:2015-2016學年山西大同一中高一上學期期末英語試卷(解析版) 題型:閱讀理解
Tourism wasn’t as important as it is today. In the past, only people with a good deal of money could travel on holidays to other countries. More people travel today than in the past because there is a growing middle class in many parts of the world; that is to say, people now have more money for travel. Special plane fares for tourists make travel less expensive and more attractive than ever before. One person doesn’t travel for the same reason as another. But most people enjoy seeing countries that are different from their own. They also like to meet new people and to taste new food.
Tourism causes many changes in a country and in people’s lives. People build new hotels and restaurants and train native men and women as guides to show visitors interesting places. There’re new nightclubs and other amusements. International tourism is clearly a big business.
1.More people travel today than in the past because______________.
A. people have become interested in traveling
B. traveling today is easier the in the past
C. people now have spare money for travel
D. great changes have taken place in the world
2.Which of the following statements is true according to the article?
A. Tourism won’t bring any changes in people’s minds.
B. With the development of tourism, great changes have taken place in many parts in the world.
C. People have some trouble in making journey.
D. Tourism causes only some changes in clothing.
3.What is the best title of the passage?
A. The Change of Tourism
B. Tourism
C. The Importance of Tourism
D. The Cause of Tourism Change
查看答案和解析>>
科目:高中英語 來源:2016年上海市長寧區(qū)高三上學期期末質量檢測英語試卷(解析版) 題型:其他題
Directions:Read the passage carefully.Then answer the questions or complete the statements in the fewest possible words.
Financial setbacks in the form of pay cuts are having a trickle-down effect(涓滴效應) as the depression persists.Families across America are cutting or even axing kids’ allowances(零花錢) to reflect what’s going on with household finances and the economy as a whole.
Some jobless parents are doing it out of necessity.Other parents are using allowance adjustments to teach children about economic realities and how to budget in learner times.
‘Try to use relevant news to explain the reasons behind the depression and how it’s hitting home.If they see it obvious in their own allowance, they’ll feel the impact and see how it all ties in,’ says financial consultant Antwone Harris.
Any reduction in allowance should be understood in age-appropriate communication, says Dr.Tony Meyer, a child psychiatrist(精神科醫(yī)生) and medical director of Aurora Psychiatric Hospital.Six- to 12-year-olds are mature enough for a frank talk, but don’t set them back with a lot of details.It’s sufficient to say their allowance is lower because Mom or Dad is getting paid less at work, so there’s less money for the family to spend.With 12- to 18-year-olds, you can broaden the discussion to include the banking crisis and other factors that contributed to the depression, Meyer says.Younger kids have the idea that they’re at the center of things, and adolescents by mature are especially self-concerned.‘They’ll think they’re responsible,’ Meyer says.
A cut in allowance might seem punishing, so the message that the child is not at fault needs to come across.Depending on the child’s age, ‘You can also ask them to bring some income by working a job or helping more around the house so Mom or Dad can work more,’ he says.Kids can also contribute by means of taking over landscaping services previously done by a paid professional.‘You’ll pay lower rates, and the money stays in the family,’ financial consultant Antwone Harris remarks.Meyer also suggests implementing a stimulant program to cut household expenses.Anyone who comes up with a cost-cutting idea get 10 percent of the savings.
That way, they’ll come to understand that a paycheck only goes so far, and decisions and sacrifices are part of responsible money management.
(Note: Answer the questions or complete the statements in NO MORE THAN EIGHT WORDS.)
1.___________ is American families’ response to the financial depression.
2.What are both jobless and other parents using allowance adjustments to teach their children about?
3.When communicating with 12-to 18-year-olds about reduction in allowance, parents can broaden the discussion through ________.
4.Besides ‘working a job or helping more around the house’, what are the other two suggestions put forward by Meyer to bring some income to kids?
查看答案和解析>>
科目:高中英語 來源:2016屆江蘇省大豐市高三上學期12月月考英語試卷(解析版) 題型:單項填空
According to the newly passed Road Traffic Safety Law, there are now tougher ________ for drunken drivers.
A. principles B. penalties
C. proposals D. prejudices
查看答案和解析>>
科目:高中英語 來源:2016屆四川資陽高三上學期第二次診斷考試英語試卷(解析版) 題型:完形填空
完形填空
閱讀下面短文,從短文后各題所給的四個選項(A、B、C和D)中,選出可以填入空白處的最佳選項,并在答題卡上將該項涂黑。
When I was a kid, my mom liked to make breakfast food for dinner every now and then. And I remember one night when she had made dinner after a long, hard day at .
On that evening so long ago, my mom a plate of eggs, sausage and extremely burned toast in front of my dad. I remember to see if anyone noticed! all my dad did was reach for his toast, at my mom and ask me how my day was at school… I don’t remember what I told him that night, but I do remember him spread butter and jelly on that toast and eat every bite!
When I got up from the table that evening, I remember hearing my mom to my dad for burning the toast. And I’II never what he said: “Honey, I love toast.”
Later that night, I went to kiss Daddy good night and I asked him if he really his toast burned. He me in his arms and said, “Your Momma put in a hard day at work today and she’s really . And besides, a burned toast never anyone!”
is full of imperfect things... and imperfect people. I’m not the best at anything, and I forget and anniversaries just like everyone else. But what I’ve over the years is that learning to accept each other’s – and to celebrate each other’s differences – is one of the most important keys to creating a healthy, growing, and relationship where a burned toast isn’t a deal-breaker!
1.A. in particular B. in fact C. after all D. in all
2.A. kitchen B. home C. work D. school
3.A. cooked B. placed C. broke D. ate
4.A. waiting B. hoping C. turning D. hesitating
5.A. And B. Thus C. Yet D. Instead
6.A. stare B. smile C. laugh D. shout
7.A. cheering B. admiring C. studying D. watching
8.A. shout B. explain C. talk D. apologize
9.A. believe B. doubt C. forget D. understand
10.A. broken B. buttered C. burned D. baked
11.A. cared B. liked C. knew D. minded
12.A. turned B. wrapped C. beat D. left
13.A. angry B. hungry C. depressed D. tired
14.A. poisons B. hurts C. upsets D. chokes
15.A. Society B. School C. Family D. Life
16.A. meetings B. birthdays C. holidays D. games
17.A. remembered B. expressed C. argued D. learned
18.A. concerns B. advice C. faults D. misunderstanding
19.A. choosing B. agreeing C. offering D. helping
20.A. lasting B. changing C. important D. familiar
查看答案和解析>>
湖北省互聯網違法和不良信息舉報平臺 | 網上有害信息舉報專區(qū) | 電信詐騙舉報專區(qū) | 涉歷史虛無主義有害信息舉報專區(qū) | 涉企侵權舉報專區(qū)
違法和不良信息舉報電話:027-86699610 舉報郵箱:58377363@163.com