To make a breakthrough in his scientific rese...

To make a breakthrough in his scientific research, the scientist has been making a(n) _____amount of effort.

A. modest　　 B. miserable

C. optional　　 D. tremendous

高三英语单项填空简单题查看答案及解析

______himself to his research on the IT technology, he soon made a breakthrough.

A．Devoted          B．Devoting          C．Devote           D．To devote

高三英语单项填空中等难度题查看答案及解析

______himself to his research on the IT technology, he soon made a breakthrough.

A. Devoted              B. Devoting               C. Devote                          D. To devote

高三英语单项填空中等难度题查看答案及解析

The scientific awards, like the Nobel Prize in 2015, are equal to all, ______ the research findings are good enough.

A. so　 　　 B. as long as　 　 C. although　 　 D. even though

高三英语单项填空中等难度题查看答案及解析

In a major medical breakthrough, Tel Aviv University researchers have “printed” the world's first 3D vascularized (有血管的）engineered heart using a patient’s own cells and biological materials. Their findings were published on April IS in a study in Advanced Science.

“This is the first time anyone anywhere has successfully engineered and printed an entire heart,” says Prof. Tal Dvir of Department of Materials Science and Engineering, who led the research for the study. “This heart is made from human cells and patient-specific biological materials. In our process, these materials serve as the bioinks, something made of sugars and proteins that can be used for 3D printing of complex tissue models，” Prof, Dvir says. “People managed to 3D print the structure of a heart in the past, but not with cells or with blood vessels (血管).Our results demonstrate the potential of our approach for engineering personalized tissue and organ replacement in the future.”

According to Prof. Dvir，the use of “ native ” patient-specific materials is important to successfully engineering tissues and organs.

The researchers are now planning on culturing the printed hearts in the lab and “ teaching them to behave” like hearts, Prof. Dvir says. They then plan to transplant the 3D-printed heart in animal models.

“We need to develop the printed heart further，” he concludes. “The cells need to form a pumping ability ； they can currently contract (收缩），but we need them to work together. Our hope is that we will succeed and prove our method’s efficacy (功效)and usefulness. “Maybe, in ten years, there will be organ printers in the finest hospitals around the world，and these procedures will be conducted routinely. ”

1.What does Prof. Dvir think of an early 3D-printed heart?

A.It was highly practical. B.It was too expensive.

C.It was personalized. D.It was too simple.

2.What do we know about the latest 3D-printed heart?

A.It can be cultured in the lab.

B.It can match a patient perfectly.

C.It has been transplanted in animals.

D.It has been widely used in hospitals,

3.What is Prof, Dvir's attitude to the development of the printed heart?

A.Ambiguous. B.Positive.

C.Disapproving. D.Cautious.

4.What is the author's purpose in writing the text?

A.To explain the basic principle of 3D technology.

B.To introduce a breakthrough of medical research.

C.To doubt the medical value of a new invention.

D.To prove the effectiveness of the new technology.

高三英语阅读理解困难题查看答案及解析

Although the increase in the present sum used for the research is________， a great breakthrough could still be achieved by the end of this year.

A．common　    B．sudden

C．enormous　    D．modest

高三英语单项填空简单题查看答案及解析

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（道德） 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 be 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 disappear, 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% guaranteed that the first cloned humans 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 limitations will be beneficial for some women．

B．A large number of genes will prevent us from developing．

C．First cloned humans might be normal according to scientists．

D．Forbidding cloning might limit the freedom of scientists．

2.What’s the author’s opinion on cloning?

A．It should be entirely banned．

B．It is acceptable if it is used for cloning organs．

C．It will take away the right to reproduce．

D．It should be used in creating life．

3.Where can you read this article?

A．In a story book．                                B．In a magazine．

C．In a science fiction．                           D．In a novel．

4.Which of the following shows the structure of the passage（1—6 refer to paragraph 1—6）?

高三英语阅读理解困难题查看答案及解析

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(道德) 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 be 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 disappear, 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% guaranteed that the first cloned humans 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 limitations will be beneficial for some women.

B. A large number of genes will prevent us from developing.

C. First cloned humans might be normal according to scientists.

D. Forbidding cloning might limit the freedom of scientists.

2.What’s the author’s opinion on cloning?

A. It should be entirely banned.                         B. It is acceptable if it is used for cloning organs.

C. It will take away the right to reproduce.    D. It should be used in creating life.

3.Where can you read this article?

A. In a story book.                                                  B. In a magazine.

C. In a science fiction.                                           D. In a novel.

4.Which of the following shows the structure of the passage(1—6 refer to paragraph 1—6)?

高三英语阅读理解简单题查看答案及解析

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

高三英语阅读理解中等难度题查看答案及解析

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 disappear．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 per cent．guaranteed that the first cloned humans 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?

高三英语阅读理解中等难度题查看答案及解析