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死亡细胞显示failed_用 be used of 造句 写出4句

编辑:小编酱 来源:编辑铺 时间:2024-04-17
死亡细胞显示failed

用 be used of 造句 写出4句

幼苗

[his English test /

幼苗

英语翻译她的行为值得高度表扬.(wort

幼苗

把狐狸与葡萄译成英语,要运用Once u

花朵

望推荐高考英语阅读理解的书

高考英语阅读训练(001)
You are watching a film in which two men are having a fight. They hit one another hard. At the start they only fight with their fists. But soon they begin hitting one another over the heads with chairs. And so it goes on until one of the men crashes (撞击) through a window and falls thirty feet to the ground below. He is dead!Of course he isn''t really dead. With any luck he isn''t even hurt. Why? Because the men who fall out of high windows or jump from fast moving trains, who crash cars of even catch fire, are professionals. They do this for a living. These men are called stuntmen. That is to say, they perform tricks.There are two sides to their work. They actually do most of the things you see on the screen. For example, they fall from a high building. However, they do not fall on to hard ground but on to empty cardboard boxes covered with a mattress (床垫). Again, when they hit one another with chairs, the chairs are made of soft wood and when they crash through windows, the glass is made of sugar!But although their work depends on trick of this sort, it also requires a high degree of skill and training. Often a stuntman'' s success depends on careful timing. For example, when he is "blown up" in a battle scene, he has to jump out of the way of the explosion just at the right moment.
Naturally stuntmen are well paid for their work, but they lead dangerous lives. They often get seriously injured, and sometimes killed. A Norwegian stuntman, for example, skied over the edge of a cliff (悬崖) a thousand feet high. His parachute (降落伞) failed to open, and he was killed. In spite of all the risks, this is no longer a profession for men only. Men no longer dress up as women when actresses have to perform some dangerous action. For nowadays there are stuntgirls tool
1. Stuntmen are those who ______.
A. often dress up as actors
B. prefer to lead dangerous lives
C. often perform seemingly dangerous actions
D. often fight each other for their lives
2. Stuntmen earn their living by ______.
A. playing their dirty tricks
B. selling their special skills
C.jumping out of high windows
D. jumping from fast moving trains
3. When a stuntman falls from a high building, ______.
A.he needs little protection
B. he will be covered with a mattress
C.his life is endangered
D. his safety is generally all right
4. Which of the following is the main factor (因素) of a successful performance?
A. Strength. B. Exactness. C. Speed. D. Carefulness.
5. What can be inferred from the author'' s example of the Norwegian stuntman?
A.Sometimes an accident can occur to a stuntman.
B.The percentage of serious accidents is high.
C.Parachutes must be of good quality.
D. The cliff is too high.
KEY: 1- 5 CBDBA
高考英语阅读训练(002)
Activity which was almost unknown to the learned in the early days of the history, while during the fifteenth century the term "reading" undoubtedly meant reading aloud. Only during the nineteenth century did silent reading become popular.
One should be careful, however, of supposing that silent reading came about simply because reading aloud is distraction (分散注意力) to others. Examination of reasons connected with the historical development of silent reading shows that it became the usual mode of reading for most adult reading tasks mainly because the tasks themselves changed in character.
The last century saw a gradual increase in literacy (读写能力) and thus in the number of readers. As readers increased, so the number of listeners dropped, and thus there was some reduction in the need to read aloud. As reading for the benefit of listeners grew less common, so came the popularity of reading as a private activity in such public places as libraries, trains and offices, where reading aloud would disturb other readers in a way.
Towards the end of the century there was still heated argument over whether books should be used for information or treated respectfully, and over whether the reading of material such as newspapers was in some way mentally weakening. Indeed this argument remains with us still in education. However, whatever its advantages, the old shared literacy culture had gone and was replaced by the printed mass media (媒介) on the one hand and by books and magazines for a specialized readership on the other.
By the end of the century students were being advised to have some new ideas of books and to use skills in reading them which were not proper, if not impossible, for the oral reader. The social, cultural, and technological developments in the century had greatly changed what the term "reading" referred to.
1. Why was reading aloud common before the nineteenth century?
A. Because silent reading had not been discovered.
B. Because there were few places for private reading.
C. Because few people could read for themselves.
D. Because people depended on reading for enjoyment.
2. The development of silent reading during the nineteenth century showed .
A. a change in the position of literate people
B. a change in the nature of reading
C. an increase in the number of books
D. an increase in the average age of readers
3. Educationalists are still arguing about _________.
A. the importance of silent reading
B. the amount of information provided by books and newspapers
C. the effects of reading on health
D. the value of different types of reading material
4. What is the writer of this passage attempting to do?
A. To explain how present day reading habits developed.
B. To change people''s way to read.
C. To show how reading methods have improved.
D. To encourage the growth of reading.
KEY: 1-4 CBDA
高考英语阅读训练(003)
In some ways, the United States has made some progress. Fires no longer destroy 18,000 buildings as they did in the Great Chicago Fire of 1871, or kill half a town of 2,400 people, as they did the same night in Peshtigo, Wisconsin. Other than the Beverly Hill Supper Club fire in Kentucky in 1977, it has been four decades since more than 100 Americans died in a fire.
But even with such successes, the United States still has one of the worst fire death rates in the world. Safety experts say the problem is neither money nor technology, but the indifference(无所谓) of a country that just will not take fires seriously enough.
American fire departments are some of the world''s fastest and best-equipped. They have to be. The United States has twice Japan''s population, and 40 times as many fires. It spends far less on preventing fires than on fighting them. And American fire -safety lessons are aimed almost entirely at children, who die in large numbers in fires but who, against popular beliefs, start very few of them.
Experts say the error is an opinion that fires are not really anyone''s fault. That is not so in other countries, where both public education and the law treat fires as either a personal failing or a crime(罪行). Japan has many wood houses; of the 48 fires in world history that burned more than 10,000 buildings, Japan has had 27. Punishment for causing a big fire can be as severe as life imprisonment.
In the United States, most education dollars are spent in elementary schools. But, the lessons are aimed at too limited a number of people; just 9 percent of all fire deaths are caused by children playing with matches.
The United States continues to depend more on technology than laws or social pressure. There are smoke detectors in 85 percent of all homes. Some local building laws now require home sprinklers (喷水装置). New heaters and irons shut themselves off if they are tipped.
1. The reason why so many Americans die in fires is that _____.
A. they took no interest in new technology
B. they did not pay great attention to preventing fires
C. they showed indifference to fighting fires
D. they did not spend enough money on fire equipment
2. It can be inferred from the passage that______.
A. fire safety lessons should not be aimed only at American children
B. American children have not received enough education of fire safety lessons
C. Japan is better equipped with fire equipment than the United States
D. America''s large population leads to more fires
3. Which of the following statements is true according to the passage?
A. There has been no great fire in the USA in recent 40 years that leads to high death rate.
B. There have been several great fires in the USA in recent 40 years that lead to high death rate.
C. There has been only one great fire in the USA in recent 40 years that led to high death rate.
D. The fire in Kentucky in 1977 made only a few people killed.
KEY: BAC
高考英语阅读训练(004)
Nuclear power''s(核能的) danger to health, safety, and even life itself can be described in one word; radiation(辐射).
Nuclear radiation has a certain mystery about it, partly because it cannot be detected (探测) by human senses. It can''t be seen or heard, or touched or tasted, even though it may be all around us. There are other things like that. For example, radio waves are all around us but we can''t detect them, sense them, without a radio receiver. Similarly, we can''t sense radioactivity without a radiation detector. But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things.
At very high levels, radiation can kill an animal or human being outright by killing masses of cells (细胞) in important organs (器官). But even the lowest levels can do serious damage. There is no level of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be significant. This is the case when only a few cells are hit, and if they are killed outright. Your body will replace the dead cells with healthy ones. But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They reproduce themselves in an unusual way. They can grow into cancer. Sometimes this does not show up for many years.
This is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the knowledge of the person at the time that damage has occurred. A person can be irradiated(放射治疗) and feel fine, then die of cancer five, ten, or twenty years later as a result. Or a child can be born weak or easy to get serious illness as a result of radiation absorbed by its grandparents.
Radiation can hurt us. We must know the truth.
1. According to the passage, the danger of nuclear power lies in __________.
A. nuclear mystery B. radiation detection
C. radiation level D. nuclear radiation
2. Radiation can lead to serious results even at the lowest level ________.
A. when it kills few cells
B. if it damages few cells
C. though the damaged cells can repair themselves
D. unless the damaged cells can reproduce themselves
3. Radiation can hurt us in the way that it can _____.
A. kill large numbers of cells in main organs so as to cause death immediately
B. damage cells which may grow into cancer years later
C. affect the healthy growth of our younger generation
D. lead to all of the above results
4. Which of the following can be best inferred from the passage?
A. The importance of protection from radiation cannot be overemphasized (过分强调).
B. The mystery about radiation remains unsolved.
C. Cancer is mainly caused by radiation.
D. Radiation can hurt those who do not know about its danger.
KEY: 1- 4 DBDA
高考英语阅读训练(005)
Today is the date of that afternoon in April a year ago when I first saw the strange and attractive doll(玩具娃娃)in the window of Abe Sheftel''s toy shop on Third Avenue near Fifteenth Street, just around the corner from my office, where the plate on the door reads. Dr Samuel Amory. I remember just how it was that day: the first sign of spring floated across the East River, mixing with the soft - coal smoke from the factories and the street smells of the poor neighbourhood. As I turned the corner on my way to work and came to Sheftel''s, I was made once more known of the poor collection of toys in the dusty window, and I remembered the coming birthday of a small niece of mine in Cleveland, to whom I was in the habit of sending small gifts. Therefore, I stopped and examined the window to see if there might be anything suitable, and looked at the collection of unattractive objects--a red toy fire engine, some lead soldiers, cheap baseballs, bottles of ink, pens, yellowed envelopes, and advertisements for soft - drinks. And thus it was that my eyes finally came to rest upon the doll stored away in one corner, a doll with the strangest, most charming expression on her face. I could not wholly make her out, due to the shadows and the film of dust through which I was looking, but I was sure that a deep impression had been made upon me as though I had run into a person, as one does sometimes with a stranger, with whose personality one is deeply impressed.
1. What made an impression on the author?
A. The doll''s unusual face.
B. The collection of toys.
C. A stranger he met at the store.
D. The beauty and size of the doll.
2. Why does the author mention his niece?
A. She likes dolls.
B. The doll looks like her.
C. She lives near Sheftel''s.
D. He was looking for a gift for her.
3. Why did the writer go past Sheftel''s?
A. He was on his way to school.
B. He was looking for a present for his niece.
C. He wanted to buy some envelopes.
D. None of the above is right.
4. The story takes place in the ______.
A. early summer B. early spring
C. midsummer D. late spring
KEY: 1-5 ADDB
高考英语阅读训练(006)
Technology is the application (应用)of knowledge to production. Thanks to modern technology, we have been able to increase greatly the efficiency of our work force. New machines and new methods have helped cut down time and expense while increasing overall output. This has meant more production and a higher standard of living. For most of us in America, modern technology is thought of as the reason why we can have cars and television sets. However, technology has also increased the amount of food available (有用的)to us, by means of modern farming machinery and animalbreeding techniques, and has extended our life span via()medical technology.
Will mankind continue to live longer and have a higher quality of life? In large measure the answer depends on technology and our ability to use it widely. If we keep making progress as we have over the past fifty years, the answer is definitely yes. The advancement of technology depends upon research and development, and the latest statistics (统计) show that the united States is continuing to pump billions of dollars annually(每年) into such efforts. So while we are running out of some scarce resources (少的资源) we may well find technological substitutes (代用品) for many of them through our research programs.
Therefore, in the final analysis the three major factors of production (land, labor and capital) are all influenced by technology. When we need new skills on techniques in medicine, people will start developing new technology to meet those needs. As equipment proves to be slow or inefficient, new machines will be invented. Technology responds to our needs in helping us maintain our standard of living.
1. What is the best title for the passage?
A. The definition of technology
B. Modern technology
C. The application of technology
D. The development of technology
2. From the passage, we can infer that this article is probably _________.
A. a part of the introduction to American business
B. followed by the passage talking about factors of production
C. taken from a learned journal
D. Both A and B
3. Which is the main idea of the passage?
A. Modern technology is the key to the improvement of standard of living.
B. The three major factors of production-land, labor and capital are all influenced by technology.
C. Technology is the response to our needs.
D. The United States is making great efforts to advance its technology.
4. According to the passage, people can live a long life with the help of _________.
A. higer quality of life
B. medical technology
C. modem farming machinery
D. technological substitute
KEY: 1- 4BDAB
高考英语阅读训练(007)
The volcano is one of the most surprising frightening forces of nature. Maybe you have seen pictures of these“fireworks”of nature. Sometimes when a volcano erupts, a very large wall of melted rock moves down the side of a mountain. It looks like a “river of tire.”Sometimes volcanoes explode, throwing the melted rock and ashes(灰)high into the air. But where does this melted rock come from?
The earth is made up of many layers(层). The top layer that we see is called the crust. Under the crust are many layers of hard rock. But far, far beneath the crust whose rock is so hot, that it is soft. In some places it even melts. The melted rock is called magma. Sometimes the magma breaks out to the surface through cracks(爆裂声)in the crust. These cracks are volcanoes.
Most people think of mountains when they think of volcanoes. But not every mountain is a volcano. A volcano is simply the opening in the earth from which the magma escapes. The hot magma, or lava as it is called, cols and builds up on the surface of the earth. Over thousands of years, this pile of cooled lava can grow to be very, very big. For example, the highest mountain in Africa, Kilimanjaro, is a volcano. It towers more than 16,000 feet above the ground around it.
1.The underlined word“erupts”means .
A. moves down B. breaks away
C. builds up D. suddenly throws out lava
2.Which words in the passage have the same meaning as “melted rock”?
A.“Volcano”and“explode”. B.“Crust”and“hard rock”
C.“magma”and“lava” D.“Volcano”and“magma”
3.Which is the correct order of the layers of the earth(beginning with the top layer)?
A. crust-hard rock-magma-soft rock
B. crust-hard rock- soft rock-magma
C. magma-soft rock- hard rock-crust
D. volcano-cracks-magma-crust
4.The best title(标题) of the passage should be u.
A. The Volcano B. Kilimanjaro Volcano
C. The Mountains D. The Melted Rock
KEY: DCBA
高考英语阅读训练(008)
WHERE TO STAY IN BOSWELL YOUR GUIDE TO OUR BEST HOTEL
Name/AddressNo. of RoomsSingleDoubleSpecial Attractions
FIRST HOTEL 222 Edward Road
Tel.414-6433120$25$35Air-conditioned rooms,
French restaurant,
Night club,
Swimming-pool, Shops,
Coffee shop and bar,
Telephone, radio and
TV in each room,
Close to the city center
FAIRVIEW HOTEL
129 North Road
Tel.591-562050$12$18Close to the air-port, Telephone
In each room, Bar, Restaurant,
Garage, Swimming-pool
ORCHARD HOTEL
考试界 Edward Road
Tel.641-6646120$15$20Facing First hotel,
European restaurant,
Coffee shop, Dry-cleaning,
Shops, tv, night-club
OSAKA HOTEL
1264 Venning Road
Tel.643-820190$30$50Air-Conditioned rooms,
Japanese and
Chinese restaurants, Shops,
Swimming-pool, Large garden
1.The number of the rooms in the best hotels in Boswell is .
A. 120 B. 470 C. 450 D. 240
2.If a Japanese traveler likes to eat in French restaurant, is the right place for him to go to.
A. 考试界 Edward Road B. 1264 Venning Road
C. 222 Edward Road D. 129 North Road
3.Which hotel faces the Orchard hotel?
A. The First hotel. B. The Osaka hotel.
C. The Fairview Hotel. D. No hotel.
KEY: BCA
这可是我得一小部分宝典啊 这里有限制 先可以凑合着做做 书你外面书店去看看好类 高考英语阅读得书 多得你根本就做不光得

英语翻译不要机译的!原文是:Clonin

额...打了我半小时字...看内容也知道是手工翻译的哈!
Unit 2 克隆:他将把我们引向何方?
克隆一直与我们同在,而如今它还要坚持下去.这是一种用来生产与原型完全相同的动植物的方法.当园艺师从生长的植物上剪下枝条来培植新植物时,就会产生这种现象.这种现象也发生在动物身上,从同一个原生子产生性别和相貌相同的双胞胎也是克隆.实际上,这些都是自然克隆现象.
克隆技术有2大用途.第一,园艺师一直用他生产大量的商用植物;第二,他在对新植物物种的研究以及对动物的医学研究方面都是很有价值.克隆植物简单,但是克隆动物就比较复杂了,是一项很难完成的任务,克隆哺乳动物的多次常识都失败了,但是,科学家的决心和耐心最终得到了回报,这就是1996年具有突破性的克隆羊“多莉”的诞生.它的程序如下图所示:
一方面,整个科学界都在关注着首例成功的克隆动物多莉羊的成长,多莉看来是在正常的成长着,这很令人鼓舞.接着传来了多莉并重的坏消息.研究克隆的科学教发现多利得的病更容易发生在年老的羊身上.这让他们很沮丧.多莉总共只存活了六年半,这是它的原型羊寿命的一半.可悲的是,同样无法控制的命运也在影响着其他物种,如克隆鼠.科学家的脑海里产生的问题是:“这是不是所有的克隆动物的一个主要困难呢?”这种现象会不会永远发生?如果改进程序.
另一方面,多莉的出生引起了一阵强烈的反对,对,对媒体和公众的想象力也产生了巨大的影响.它引起了争议,因为他突然打开了人们的眼界,看到了有可能:用克隆技术来治疗重病,甚至是克隆出人类.
尽管目前供克隆研究的人体细胞和胚胎还很难得到,但是报纸报道说,有些头目希望把自己克隆出来以实现他的野心.宗教领袖也提出了道德方面的问题.各国惶恐不安而且更加谨慎,有些开始改革司法制度,明令禁止进行克隆人类的研究.但是其他国家如和英国,现在还在继续收集克隆技术有可能提供妇幼的医疗救助的证据.然而,科学家们仍对克隆技术有助于人类还是有害于人类,以及克隆技术讲吧我们引向何处困惑.

英语翻译Stem cell resear

在,干细胞研究和治疗已现进入临床实验阶段.已允许干细胞疗法的条件以超出了西方国家批准的范围,如:美国、英国和澳大利亚.西方世界已详细审核了在这些实验和程序上尝试满足国际文件标准方面的失败.
提供的干细胞疗法使用了各种不同的细胞类型,包括脐带干细胞和 嗅鞘细胞.然后这些干细胞在用于干细胞治疗前存放于中心血库.(expanded in 是扩展的意思,但我觉着不好理解,所以我用了“存放”.如果你有更专业的说法,可以替换).
补充,换一种方法:
西方世界已就在实验和程序方面未能满足国际文件标准的情况进行了详细的审核.
供参考.

英语新概念3中遇到个不懂的问题,请教英语

沁冰泉说的正解,是he 不是the.
原文如下,请核对。若选满意答案,请选 沁冰泉
The facts
Editors of newspapers and magazines often go to extremes to provide their readers with unimportant facts and statistics. Last year a journalist had been instructed by a well-known magzine to write an article on the president's palace in a new African republic. When the article arrived, the editor read the first sentence and then refused to publish it. The article began: 'Hundres of steps lead to the high wall which surrounds the president's palace.' The editor at once sent the journalist a telegram instructing him to find out the exact number of steps and the height of the wall.
The journalist immediately set out to obtain these important facts, but he took a long time to send them. Meanwhile, the editor was getting impatient, for the magazine would soon go to press. He sent the journalist two urgent telegrams, but received no reply. He sent yet another telegram informing the journalist that if he did not reply soon he would be fired. When the journalist again failed to reply, the editor reluctantly published the article as it had originally been written. A week later, the editor at last received a telegram from the journalist. Not only had the poor man been arrested, but hehad been sent to prison as well. However, he had at last been allowed to send a cable in which he informed the editor that he hadbeen arrested while counting the 1084 steps leading to the 15 foot wall which surrounded the president palace.

21号染色体英文缩写

21号染色体的英文缩写为Chromosome 21。

用 be used of 造句 写出4句
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