With rapid advances in medical science, cloning is slowly but surely looking like it could be in our near future. However, is it really an option that should be considered as a way to extend human life?
Reproductive cloning may help human families gain children, but there's also a benefit for the animal world. It brings hope to people eager for children but unable to have their own or adopt. It can also bring about the recreation of species that have long since died, allowing scientists to fully study the species as a living creature instead of simply looking at images or bones.
Many believe that cloning can be used to replace failing organs. This will reduce the waiting list for organ donations and allow more people to be saved. Not only that, but because the organ is, in fact, your own organ, there would be less chance of rejection.
Cloning could prove helpful in genetic research. Using cloning technologies, genetic researchers would have a better understanding of the composition of genes and the effects of genetic constituents (成分) on human characters. There's also the possibility of changing genetic constituents in cloned humans, and cloning could help fight genetic diseases.
While the cloning of body organs can help extend human life, it could also cause a lot of malpractice (玩忽职守). Along with the ability to clone desired characters, there could be the possibility of people deliberately reproducing undesired characters. This could lead to a rise in malpractices within society.
Cloning involves a process of creating identical genes. As such, there would be a lack of diversity in humankind. Scientists believe this lack of diversity will lower the human race's ability to adapt.
Whatever your view on cloning may be, studies show that the clone would in fact not be completely identical to the original just as twins are not completely identical. Though they might look alike, twins have different personalities and enjoy different things. The same could be said of clones. Even if technology were created in which your memories and thoughts could be transmitted (传送) to the clone, your clone would still be a different person.
1.What good might reproductive cloning bring?
A. It may help improve human well-being.
B. It could contribute to the rising birthrate.
C. It could help animals survive deadly diseases.
D. It may enable scientists to better study extinct species.
2.According to the text, cloning can also be used for ________________________________________________.
A. organ transplant
B. solving the aging problem
C. infectious disease treatment
D. constructing a gene database
3.What's one problem cloning may cause?
A. Great diversity.
B. Individual security risk.
C. Increased improper conduct.
D. Serious personality disorder.
4.Why are twins mentioned in the last paragraph?
A. To stress twins' similarities.
B. To show twins are quite common.
C. To carry out deeper research on twins.
D. To better illustrate what a clone will be like.
高三英语阅读理解中等难度题
With rapid advances in medical science, cloning is slowly but surely looking like it could be in our near future. However, is it really an option that should be considered as a way to extend human life?
Reproductive cloning may help human families gain children, but there's also a benefit for the animal world. It brings hope to people eager for children but unable to have their own or adopt. It can also bring about the recreation of species that have long since died, allowing scientists to fully study the species as a living creature instead of simply looking at images or bones.
Many believe that cloning can be used to replace failing organs. This will reduce the waiting list for organ donations and allow more people to be saved. Not only that, but because the organ is, in fact, your own organ, there would be less chance of rejection.
Cloning could prove helpful in genetic research. Using cloning technologies, genetic researchers would have a better understanding of the composition of genes and the effects of genetic constituents (成分) on human characters. There's also the possibility of changing genetic constituents in cloned humans, and cloning could help fight genetic diseases.
While the cloning of body organs can help extend human life, it could also cause a lot of malpractice (玩忽职守). Along with the ability to clone desired characters, there could be the possibility of people deliberately reproducing undesired characters. This could lead to a rise in malpractices within society.
Cloning involves a process of creating identical genes. As such, there would be a lack of diversity in humankind. Scientists believe this lack of diversity will lower the human race's ability to adapt.
Whatever your view on cloning may be, studies show that the clone would in fact not be completely identical to the original just as twins are not completely identical. Though they might look alike, twins have different personalities and enjoy different things. The same could be said of clones. Even if technology were created in which your memories and thoughts could be transmitted (传送) to the clone, your clone would still be a different person.
1.What good might reproductive cloning bring?
A. It may help improve human well-being.
B. It could contribute to the rising birthrate.
C. It could help animals survive deadly diseases.
D. It may enable scientists to better study extinct species.
2.According to the text, cloning can also be used for ________________________________________________.
A. organ transplant
B. solving the aging problem
C. infectious disease treatment
D. constructing a gene database
3.What's one problem cloning may cause?
A. Great diversity.
B. Individual security risk.
C. Increased improper conduct.
D. Serious personality disorder.
4.Why are twins mentioned in the last paragraph?
A. To stress twins' similarities.
B. To show twins are quite common.
C. To carry out deeper research on twins.
D. To better illustrate what a clone will be like.
高三英语阅读理解中等难度题查看答案及解析
With the rapid development of medical science, we ___ more new drugs used in the treatment of cancer．
A．see B．had seen C．will be seeing D．would see
高三英语单项填空中等难度题查看答案及解析
A rapidly advancing contemporary science that is highly dependent on new tools is Earth system science. Earth system science involves observation and measurements on the Earth at all scales from the largest to the smallest. The huge amounts of data that are gathered come from many different locations and require special techniques for handling data. Important new tools that facilitate Earth system science include satellite remote sensing, small deep-sea submarines, and geographic information systems.
More than any other way of gathering evidence, satellite observations continually remind us that each part of the Earth interacts with and is dependent on all other parts.
Earth system science was born from the realization of that interdependence. Satellite remote sensing makes possible observations at large scales, and in many cases, measurements of factors that could not otherwise be measured. For example, the ozone hole over Antarctica--the decrease in the concentration of ozone high in the atmosphere--is measured by remote sensing, as are changes in deserts, forests, and farmlands around the world. Such measurements can be used in many areas of specialization besides Earth system science. Archaeology, for example, has benefited from satellite observations that reveal the traces of ancient trade routes across the Arabian Desert.
New tools for exploring previously inaccessible areas of the Earth have also added greatly to our knowledge of the Earth system. Small deep-sea submarines allow scientists to travel to the depths of the ocean. There they have discovered new species and ecosystems thriving near deep-sea vents that emit heat, sasses, and mineral-rich water.
Just as important as new methods of measurement and exploration are new ways to store and analyze data about the Earth system. Computer-based software programs known as geographic information systems, or GIS, allow a large number of data points to be stored along with their locations. These can be used to produce maps and to compare different sets of information gathered at different times. For example, satellite remote sensing images of a forest can be converted to represent stages in the forest's growth. Two such images, made at different times can be overlaid and compared, and the changes that have taken place can be represented in a new image.
1.The word "facilitate" in Paragraph I is closest in meaning to ________.
A. enable B. require C. organize D. examine
2.The author of the passage mentions that satellite observations are especially effective in ________.
A. conducting scientific studies of life on the ocean floor
B. predicting future climate changes
C. providing data to determine Earth's age
D. demonstrating interactions among all of Earth's parts
3.According to the passage, satellite observations of the Arabian Desert allow archaeologists to know ________.
A). indications of ancient routes
B. evidence of former lakes
C. traces of early farms
D. remains of ancient forests
4.What is the main idea of the passage?
A. special techniques are needed to classify the huge amounts of data about Earth.
B. New tools provide information about Earth that was once impossible to obtain.
C. Advances in Earth system science have resolved many environmental problems.
D. Satellite remote sensing can show changes between two images taken years apart.
高三英语阅读理解中等难度题查看答案及解析
The science of computer, _______rapid progress has been made in recent years, is the most important of all science.
A．which B．with which C．in which D．to which
高三英语单项填空中等难度题查看答案及解析
Throughout the world__________advance has been made in science and technology is due to education which brings forth knowledge, creation and inventions.
| A．whoever | B．whatever | C．what | D．that |
高三英语单项填空简单题查看答案及解析
With self-driving vehicle technology rapidly advancing, many companies are turning to autonomous robots for the last mile of the delivery process, from the store to the customer. The latest to join the trend is e-commerce giant Amazon. Following a successful eight-month test run in Snohomish County, Washington, the company’s Scout robots have been making the rounds of Irvine, California, since August 6, 2019.
The six-wheeled Scout is about the size of a large cooler with the capacity to carry small or medium-sized packages. The battery-powered vehicle, which moves at a regular walking pace, has been programmed to stay away from pedestrians, animals, and unexpected obstacles, like garbage cans. Its powerful sensors can also detect the movement of a car backing out of a driveway.
Though Amazon hasn’t revealed how Scout ensures the delivery is picked up by the right person, it most likely requires the customer to apply a unique code, texted to them before the delivery, to unlock the cargo bay. Also unclear is the number of deliveries Scout can complete before its battery needs recharging Though the initial tests are being conducted with a human in tow, the robot will be autonomous in the future. Its location however, will be tracked at all times—if someone attempts to steal Scout, Amazon employees will be instantly alerted.
While Amazon is focusing on home deliveries, food and grocery delivery company Postmates’ bug-eyed robots are currently making their rounds along the busy San Francisco streets. Also in test-mode, the robots can carry up to 50 pounds and travel 30 miles on a single battery charge.
Though the eco-friendly robots will help free our streets of bicycles, motor bikes, and large delivery trucks that typically ferry packages, they can t climb stairs or open gates, which means they can only reach consumers living the ground level. Additionally, the robots are unable to leave packages at the front door if the customers aren’t home. whether these issues get solved remains to be seen. For now, it appears that humans will still be needed to satisfy the ever-growing demand for home and office deliveries.
1.What is the right feature of the Scout robots?
A.They can be powered themselves. B.They know to avoid obstacles ahead.
C.They can run thanks to their six wheels. D.They’re big enough to carry heavy things.
2.What about Scout is still confusing to common people?
A.How long it will take to get it fully charged.
B.Why its cargo bay can open at the right time.
C.How it recognizes the right owner of the things.
D.How many deliveries it can do on a full charge.
3.What is the author’s opinion about delivery robots according to the last paragraph?
A.They are not easily available. B.They’ll replace humans soon.
C.They have some limitations. D.They won’t be well accepted.
4.What should be the best title for the text?
A.Improvements Are Being Made To Delivery robot Technology.
B.Amazon has Planned To Put A Creative Delivery Robot Into Use.
C.Eco-friendly delivery Robots Are Springing Up Around America.
D.Amazon’s delivery Robots May Soon Be Knocking At Your Door.
高三英语阅读理解中等难度题查看答案及解析
With self-driving vehicle technology rapidly advancing, many companies are turning to autonomous robots for the final leg of the delivery process, from the store or local distribution center to the customer. The latest to join the trend is e-commerce giant Amazon. Following a successful eight — month test run in Snohomish County, Washington, the company's Scout robots have been making the rounds of Irvine, California, since August 6, 2019.
The six-wheeled Scout is about the size of a large cooler with the capacity to carry small or medium-sized
packages. The battery-powered vehicle, which moves at a regular walking pace, has been programmed to avoid pedestrians, animals, and unexpected obstacles, such as garbage cans. Its powerful sensors can also detect the movement of a car backing out of a driveway.
To accelerate Scout's development and bring it nationwide sooner, the company has created several detailed virtual maps of American suburbs and conducted trial deliveries to homes there.
Though Amazon has not shown how Scout ensures the delivery is picked up by the right person, it most likely requires the customer to apply a unique code, texted to them prior to the delivery, to unlock the store box. Also unclear is the number of deliveries Scout can complete before its battery needs to be recharged. Though the initial tests are being conducted with a human for company, the robot will be autonomous in the future. Its location, however, will be tracked at all times ——if someone attempts to steal Scout, Amazon employees will be instantly sensed.
However, the eco-friendly robots are unable to climb stairs or open gates, which means that they can only reach consumers who live on the ground level. Additionally, the robots are unable to leave packages at the front door if the customers are not home. Whether these problems get resolved remains to be seen. For now, it appears that humans will still be needed to achieve the ever-growing demand for home and office deliveries.
1.What are many companies developing autonomous robots for?
A.Final tests. B.The so-called last mile.
C.Robots' safety. D.Delivery speed.
2.What can we infer about Scout from paragraph 2?
A.It looks like a cooler. B.It adjusts its speed accordingly.
C.Its sensors play a key role. D.It will be widely used soon.
3.What does the underlined phrase “prior to" in paragraph 4 mean?
A.Before. B.After.
C.In front of. D.Due to.
4.From which is the text probably taken?
A.A biology textbook. B.A health magazine.
C.A newspaper. D.A travel brochure.
高三英语阅读理解中等难度题查看答案及解析
In the near future, more advances in cloning technology ________ by scientists.
A．are making B．are made C．will make D．will be made
高三英语单项填空中等难度题查看答案及解析
With only about 1, 000 pandas left in the world, China is desperately trying to clone the animal and save the endangered species. That’s a move similar to what a Texas A & M University researchers have been undertaking for the past five years in a project called “Noah’s Ark”.
Noah’s Ark is aimed at collecting eggs, embryos(胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen. If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A & M’s College of Veterinary Medicine, says there would be enough of the basic building blocks to reintroduce the species in the future.
It is estimated that as many as 2, 000 species of mammals, birds, reptiles will become extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years.
This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal. The entire procedure could take from three to five years to complete.
“The nuclear transfer of one species to another is not easy, and the lack of available(capable of being used) panda eggs could be a major problem,” Kraemer believes. “They will probably have to do several hundred transfers to result in one pregnancy (having a baby). It takes a long time and it’s difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort,” adds Kraemer, who is one of the leaders of the Project at Texas A & M, the first-ever attempt at cloning a dog.
“They are trying to do something that’s never been done, and this is very similar to our work in Noah’s Ark. We’re both trying to save animals that face extinction. I certainly appreciate their effort and there’s a lot we can learn from what they are attempting to do. It’s a research that is very much needed.”
1. The aim of “Noah’s Ark” project is to _______.
A. make efforts to clone the endangered pandas B. save endangered animals from dying out
C. collect DNA of endangered animals to study D. transfer the nuclear of one animal to another
2. According to Professor Kraemer, the major problem in cloning pandas would be the lack of _______.
A. available panda eggs B. host animals C. qualified researchers D. enough money
3.The best title for the passage may be _______.
A. China’s Success in Pandas Cloning B. The First Cloned Panda in the World
C. Exploring the Possibility to Clone Pandas D. China —the Native Place of Pandas Forever
4.From the passage we know that _______.
A. Kraemer and his team have succeeded in cloning a dog
B. scientists try to implant a panda’s egg into a rabbit
C. Kraemer will work with Chinese scientists in clone researches
D. about two thousand of species will probably die out in a century
高三英语阅读理解困难题查看答案及解析
With only about 1,000 pandas left in the world, China is desperately trying to clone the animal and save these in a dangerous situation. That's a move similar to what a Texas A & M University researchers have been undertaking for the past five years in a project called "Noah's Ark".
Noah's Ark is aimed at collecting eggs, embryos(̥), semen and DNA of these animals and storing them in liquid nitrogen. If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A & M's College of Veterinary, Medicine, says there would be enough of the basic building blocks to reintroduce the species in the future.
It is estimated that as many as 2, 000 species of mammals, birds and reptiles will probably become extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years.
This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal.
The entire procedure could take from three to five years to complete.
"The nuclear transfer of one species to another is not easy, but the lack of available panda eggs could be a major problem," Kraemer believes. "They will probably have to do several hundred transfers to result in one pregnancy (having a baby). It takes a long time and it's difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort," adds Kraemer, who is one of the leaders of the Project at Texas A&M, the first-ever attempt at cloning a dog.
"They are trying to do something that's never been done, and this is very similar to our work in Noah's Ark. We're both trying to save animals that face extinction. I certainly appreciate their effort and there's a lot we can learn from what they are attempting to do. The cooperation between us is very much needed."
67. The final aim of "Noah's Ark" project is to___________. .
A. make efforts to clone the endangered pandas
B. save endangered animals from dying out
C. collect DNA of endangered animals to study
D. transfer the nuclear of one animal to another
68. According to Professor Kraemer, ___________.
A. the long time lasting cloning research could be successful.
B. the eggs transfers immediately result in having a baby.
C. the lack of nuclear transfer could be a major problem to have new pandas.
D. if species should die out, basic building blocks would heal them.
69. The best title for the passage may be______________.
A. China's Success in Pandas Cloning
B. Helping Ways to Avoid Extinction
C. Exploring the Possibility to Clone Pandas
D. The Practice in Noah's Ark
70. From the passage we know that______________.
A. Kraemer and his team have succeeded in cloning a panda
B. scientists try to implant a panda's egg into a rabbit
C. Kraemer will work with Chinese scientists in clone researches
D. about two thousand species are to die out in a century
高三英语阅读理解简单题查看答案及解析