Cryonics is the practice of cooling dead orga...

Cryonics is the practice of cooling dead organic tissue. This is used on humans or animals that have recently died. The hope is to bring them back to life in the near future. By law, it can only be performed on humans after they are legally dead. Many scientists and doctors think cryonics is totally morally unacceptable. However, there are also many who support cryonics.

Supporters of cryonics hope that future technology will improve. Molecular technology is especially hoped to reverse (逆转) the early stages of clinical death. It is hoped that this will enable the repair of tissue on a very tiny level. It could also allow damaged tissues and organs to regenerate. They also assume that disease and aging will one day be reversible.

These supporters want to store the memory and identity from the brain of people who have recently died. Cryonics attempts to do this by using liquid that preserves the brain. If this is done before cooling, it will prevent injury. This cooling liquid saves the fine cell structures of the brain where memory and identity exist.

Critics of cryonics think this process is a waste of time and money. They base their opinions on the current level of science. It is true that cells, tissues, blood vessels, and some small animal organs can be reversibly preserved. Some frogs can even survive for a few months in a partially frozen state if they are kept a few degrees above freezing. But this is not true cryopreservation. There is no proof that the identity and memory of a person can be restored after death has occurred.

Critics also think that if it were possible to bring dead people back to life, it would cause many social problems. Critics worry it would cause a huge overpopulation problem. Many also think trying to reverse death is immoral because it is against the will of their God.

1.What can we know about cryonics from paragraph 1?

A.Cryonics is used before people's death.

B.All scientists aren't in favor of the use of cryonics.

C.Laws forbid the use of cryonics on legally dead people.

D.Cryonics tries to cool dead organic tissue by using liquid.

2.What does the underlined word ''regenerate'' in paragraph 2 mean?

A.copy. B.return.

C.freeze. D.regrow.

3.Why do critics oppose the use of cryonics?

A.It will make people's memory lost.

B.Injury will occur during the process.

C.There is scientific uncertainty about it.

D.It goes along with their religious belief.

4.What is the main idea of the text?

A.The use of cryonics has a bright future.

B.Cryonics is still a controversial practice.

C.The practice of cryonics is limited by law.

D.There is an advance in medical technology.

高三英语阅读理解中等难度题查看答案及解析

COOL INVENTIONS

CHARGE ON THE GO

From school to band practice, the Venturi Eclectic is an Earth-friendly way to get where you want to go. This battery-powered, zero-emission(meaning it doesn’t pollute the air) vehicle runs mainly on renewable energy. Solar panels on the Eclectic’s roof absorb sun rays when you’re driving. On windy days, you can connect a machine to the car’s roof collects energy from the wind while you’re parked. The Eclectic’s top speed is 28 miles an hour; the battery lasts for 31 miles before it needs to be recharged. Zipping （迅速行进）round the neighborhood has never been better.

WATER CLOCK

Here’s an eco-friendly way to tell time: Simply fill the Bedol Water-powered Clock’s tank（箱）with water, add some lemon juice, and the clock will display the time without the need for environmentally harmful batteries. There are two sets of metal electrodes（电极）inside the water tank. Water contains ions（离子）that carry negative and positive charges. These ions complete a charge between the electrodes creating enough energy to power the clock. Just refill the tank every few weeks, and this clock will keep on ticking.

LAND ROCKET

Bloodhound SuperSonic Car (SSC) will be the first car to attempt to break the 1,000-mile-an-hour barrier. (The current record is 763 miles an hour.) a concept for now, the rocket-shaped car gets its initial push to 350 miles an hour from a jet engine. Then a rocket fires up, pushing the SSC past 1,000 miles an hour. In order to keep the car streamlined（流线型的）the driver lies back at a 45-degree angle.

COOL CAMERA

You’re having a blast at your friend’s birthday party. But when it’s time to bring out the cake, everyone crowds around, blocking your view. No worries. Throw the Triops into the air, and this clever camera captures the view from above. The Triops can take three pictures at once, each from different angles. You can also record sounds and command the Triops to start shooting whenever it hears that noise. That’s one smart camera.

1．According to the passage, the Venturi Eclectic______.

A．is popular with businessmen

B．is suitable for a long trip

C．can turn wind into energy

D．has only a little gas emission

2．What is the common characteristic of the Venturi Eclectic and the Bedol Water-powered Clock?

A．They don’t need batteries.

B．They are difficult to operate

C．They can be powered by water

D．They are environmentally friendly

3．The underlined phrase “having a blast” in the last paragraph means______.

A．looking at a picture     B．enjoying yourself

C．blowing out a candle       D．recording sounds

4．Which of the following is TRUE according to the passage?

A．The Triops in sensitive to sounds.

B．The driver of the SSC must be of great size.

C．The color of the Bedol Water-powered Clock is like that of lemon

D．The SSC doesn’t have anything to do with a rocket actually.

高三英语阅读理解简单题查看答案及解析

COOL INVENTIONS

From school to band Practice, the Venturi Eclectic is an Earth-friendly way to get Where you want to go．This battery-powered, zero-emission (meaning it doesn't pollute the air) vehicle runs mainly on renewable energy．Solar panels on the Eclectic's roof absorb sun rays when you're driving．On windy days, you can connect a machine to the car's roof that collects energy from the wind while you're parked．The Eclectic's top speed is 28 miles an hour; the battery lasts for 31 miles before it needs to be recharged．Zipping (迅速行进) around the neighborhood has never been better.

Here's an eco-friendly way to tell time: Simply fill the Bedol Water-powered Clock's tank (箱) with water, add some lemon juice, and the clock will display the time without the need for environmentally harmful batteries．There are two sets of metal electrodes (电极) inside the water tank．Water contains ions (离子) that carry negative and positive charges．These ions complete a charge between the electrodes, creating enough energy to power the clock．Just refill the tank every few weeks, and this clock will keep on ticking.

Bloodhound SuperSonic Car (SSC) will be the first car to attempt to break the l,000-mile-an-hour barrier．(The current record is 763 miles an hour.) A concept for now, the rocket-shaped car gets its initial push to 350 miles an hour from a jet engine．Then a rocket fires up, pushing the SSC past 1,000 miles an hour．In order to keep the car streamlined (流线型的), the driver lies back at a 45-degree angle.

You're having a blast at your friend's birthday party．But when it's time to bring out the cake, everyone crowds around, blocking your view．No worries．Throw the Triops into the air, and this clever camera captures the view from above．The Triops can take three pictures at once, each from different angles．You can also record sounds and command the Triops to start shooting whenever it hears that noise．That's one smart camera.

1.According to the passage, the Venturi Eclectic ________.

A．is popular with businessmen                      B．is suitable for a long trip

C．can turn wind into energy                           D．has only a little gas emission

2.What is the common characteristic of the Venturi Eclectic and the Bedol Water-powered Clock?

A．They don't need batteries.                          B．They are difficult to operate.

C．They can be powered by water.                 D．They are environmentally friendly.

3.The underlined phrase “having a blast” in the last paragraph probably means ________.

A．looking at a picture                                       B．enjoying yourself

C．blowing out a candle                                     D．recording sounds

4.Which of the following is TRUE according to the passage?

A．The Triops is sensitive to sounds.

B．The driver of the SSC must be of great size.

C．The color of the Bedol Water-powered Clock is like that of lemon.

D．The SSC doesn’t have anything to do with a rocket actually.

高三英语阅读理解简单题查看答案及解析

COOL INVENTIONS

From school to band Practice, the Venturi Eclectic is an Earth-friendly way to get Where you want to go．This battery-powered, zero-emission (meaning it doesn't pollute the air) vehicle runs mainly on renewable energy．Solar panels on the Eclectic's roof absorb sun rays when you're driving．On windy days, you can connect a machine to the car's roof that collects energy from the wind while you're parked．The Eclectic's top speed is 28 miles an hour; the battery lasts for 31 miles before it needs to be recharged．Zipping (迅速行进) around the neighborhood has never been better.

Here's an eco-friendly way to tell time: Simply fill the Bedol Water-powered Clock's tank (箱) with water, add some lemon juice, and the clock will display the time without the need for environmentally harmful batteries．There are two sets of metal electrodes (电极) inside the water tank．Water contains ions (离子) that carry negative and positive charges．These ions complete a charge between the electrodes, creating enough energy to power the clock．Just refill the tank every few weeks, and this clock will keep on ticking.

Bloodhound SuperSonic Car (SSC) will be the first car to attempt to break the l,000-mile-an-hour barrier．(The current record is 763 miles an hour.) A concept for now, the rocket-shaped car gets its initial push to 350 miles an hour from a jet engine．Then a rocket fires up, pushing the SSC past 1,000 miles an hour．In order to keep the car streamlined (流线型的), the driver lies back at a 45-degree angle.

You're having a blast at your friend's birthday party．But when it's time to bring out the cake, everyone crowds around, blocking your view．No worries．Throw the Triops into the air, and this clever camera captures the view from above．The Triops can take three pictures at once, each from different angles．You can also record sounds and command the Triops to start shooting whenever it hears that noise．That's one smart camera.

1.According to the passage, the Venturi Eclectic ________.

A．is popular with businessmen                B．is suitable for a long trip

C．can turn wind into energy                    D．has only a little gas emission

2.What is the common characteristic of the Venturi Eclectic and the Bedol Water-powered Clock?

A．They don't need batteries.                    B．They are difficult to operate.

C．They can be powered by water.           D．They are environmentally friendly.

3.The underlined phrase “having a blast” in the last paragraph probably means ________.

A．looking at a picture                             B．enjoying yourself

C．blowing out a candle                           D．recording sounds

4.Which of the following is TRUE according to the passage?

A．The Triops is sensitive to sounds.

B．The driver of the SSC must be of great size.

C．The color of the Bedol Water-powered Clock is like that of lemon.

D．The SSC doesn’t have anything to do with a rocket actually.

高三英语阅读理解中等难度题查看答案及解析

COOL INVENTIONS

From school to band Practice, the Venturi Eclectic is an Earth-friendly way to get Where you want to go．This battery-powered, zero-emission (meaning it doesn't pollute the air) vehicle runs mainly on renewable energy．Solar panels on the Eclectic's roof absorb sun rays when you're driving．On windy days, you can connect a machine to the car's roof that collects energy from the wind while you're parked．The Eclectic's top speed is 28 miles an hour; the battery lasts for 31 miles before it needs to be recharged．Zipping (迅速行进) around the neighborhood has never been better.

Here's an eco-friendly way to tell time: Simply fill the Bedol Water-powered Clock's tank (箱) with water, add some lemon juice, and the clock will display the time without the need for environmentally harmful batteries．There are two sets of metal electrodes (电极) inside the water tank．Water contains ions (离子) that carry negative and positive charges．These ions complete a charge between the electrodes, creating enough energy to power the clock．Just refill the tank every few weeks, and this clock will keep on ticking.

Bloodhound SuperSonic Car (SSC) will be the first car to attempt to break the l,000-mile-an-hour barrier．(The current record is 763 miles an hour.) A concept for now, the rocket-shaped car gets its initial push to 350 miles an hour from a jet engine．Then a rocket fires up, pushing the SSC past 1,000 miles an hour．In order to keep the car streamlined (流线型的), the driver lies back at a 45-degree angle.

You're having a blast at your friend's birthday party．But when it's time to bring out the cake, everyone crowds around, blocking your view．No worries．Throw the Triops into the air, and this clever camera captures the view from above．The Triops can take three pictures at once, each from different angles．You can also record sounds and command the Triops to start shooting whenever it hears that noise．That's one smart camera.

1.According to the passage, the Venturi Eclectic ________.

A．is popular with businessmen                   B．is suitable for a long trip

C．can turn wind into energy                      D．has only a little gas emission

2.What is the common characteristic of the Venturi Eclectic and the Bedol Water-powered Clock?

A．They don't need batteries.                      B．They are difficult to operate.

C．They can be powered by water.              D．They are environmentally friendly.

3.The underlined phrase “having a blast” in the last paragraph probably means ________.

A．looking at a picture                                B．enjoying yourself

C．blowing out a candle                              D．recording sounds

4.Which of the following is TRUE according to the passage?

A．The Triops is sensitive to sounds.

B．The driver of the SSC must be of great size.

C．The color of the Bedol Water-powered Clock is like that of lemon.

D．The SSC doesn’t have anything to do with a rocket actually.

高三英语阅读理解中等难度题查看答案及解析

Many research groups are testing “ink” made from silk proteins to print human tissues, even organs. The process is a less costly alternative to conventional 3-D printing with collagen, a key protein mainly existing in the mammal’s (哺乳动物) cells. Researchers in Assam, a state in India, are investigating using local silkworm species for the task—they recently submitted a patent for bioinks using a combination of proteins obtained from local silkworms. The scientists have woven them into tissue structures ranging from ears to heart.

Silk is a natural substance which is strong and completely biodegradable (可生物降解的), well suited for applications in tissue engineering. For instance, to bio-print an ear, researchers dissolve silk fibers. They carefully mix the sticky liquid with a patient’s stem cells, then build structures layer by layer with a 3-D printer. Finally, the cells grow and replace the silken proteins and finally change into a natural substance in human body.

Compared with common—used chemicals as adhesive (黏合剂), wild silk is also perfect to cross-link silky tissues, which helps to maintain a 3-D structure. Also, the wild silk has spots that cells naturally attach to, which allows cells to stick to the silk structure rapidly. “These silks are ideal candidates for bioinks because they can be combined to build strong human tissues” says Mandal, the lab’s lead investigator. “This is important, for example, when making bones,” he add.

“Obtaining and purifying collagen from animal remains is complex and expensive.” says David Kaplan, an expert in biomedical engineering, when asked about the advantages. Compared with collagen, silks have an immense advantage in terms of supply and processing. Local sourcing is also a clear plus in their use in India.”

Mandal and his colleagues have already created original structures, including bone and soft tissues of the heart and liver. Reconstructing a human knee complex tissue at the ends of a bone will be next.

1.What does the underlined word “bioinks” refer to?

A.Silk proteins. B.Collagens.

C.Certain chemical. D.Tissues.

2.What will a patient eventually get after an ear-bioprinting?

A.An artificial ear. B.A silken ear.

C.A real ear. D.An original ear.

3.What are the advantages of silk proteins over collagen according to David Kaplan?

A.They are biodegradable and strong.

B.They are inexpensive and uncomplicated.

C.They are harmless and attachable.

D.They are pure and available.

4.What is the best title for the text?

A.Final Solution—Wild Worms for Medical Treatment.

B.Silky Tissue—Worm Proteins Ready for 3-D Bioprinting.

C.Bioink—Cheap Alternative for Conventional Operations.

D.Protein—Key to Repairing Human Organs.

高三英语阅读理解中等难度题查看答案及解析

阅读理解。

For Kim LeBlanc, knowing that her son Tyler’s organs, eyes and other tissues have given life or healing to others is helping her cope with the loss of her child, who was struck by a truck in Guelph on May 31.

Tyler was believed to have been texting a friend when he stepped onto a high-traffic road against the green light and was struck by the truck. Then he was sent to a Hamilton hospital. Surgery was performed to ease the pressure in his brain, but .the family was told he would not recover.

“With all of his injuries, I just prayed all night for a miracle. And I was granted a miracle, but not in the way I’d expected,” says LeBlanc, her voice choked by emotion.

The family decided to donate Tyler’s organs, a choice she believes her kind and considerate son would have made on his own. It’s also a choice that transplant programs wish would be made more often, because the need for donor organs is far more than the supply worldwide. More than 1,500 people in Ontario are on the waiting list for life-saving organs, and one dies every day because an organ has not become available in time. Across Canada, the gap between donations and the need for organs continues to widen. At the end of 2010, more than 4,400 Canadians were on the waiting list for donor organs, including 3,362 needing a kidney. That year, 229 died before the organs they needed became available.

LeBlanc recalls the morning when her son was taken off life support and his organs were removed. Despite living what she calls a parent’s absolute worst nightmare, LeBlanc says she has got the strength to bear such an unbearable loss. “He’s still there. He’s still living. And he’s still breathing. And he’s brought so much joy to families,” she says. “He’s my hero. He really is my hero.”

1.Tyler was struck by the truck mainly because________.

A. he broke the traffic rule

B. he was talking with his friends

C. the truck ignored him

D. the truck ran at a high speed

2.The figures in paragraph 4 show that ________.

A. more people begin to donate their organs

B. more people are dying during organ transplant operations

C. many people don’t know how to donate their organs

D. many people are in great need of organ transplant worldwide

3.It is implied in the last paragraph that ________.

A. LeBlanc was desperate about Tyler’s death

B. LeBlanc will never forget Tyler’s contribution

C. LeBlanc felt relieved with Tyler’s organ donated

D. LeBlanc has never thought that Tyler will be a hero

高三英语阅读理解中等难度题查看答案及解析

The cost of organic food is higher than　　　　 of conventional food because the organic price tag reflects more closely the true cost of growing the food．

A． it　　　　　　　　　 B． one　　　 C． this　　　　　　　　　 D． that

高三英语单项填空中等难度题查看答案及解析

The cost of organic food is higher than _____ of conventional food because the organic price tag reflects more closely the true cost of growing the food．

A. it　     B. one　 C. this    D. that

高三英语单项填空中等难度题查看答案及解析

Years ago, I flew 3,000 miles across the country to take a new job at a non-profit organization. This was a very _________ transition (转变), I thought. Before the _________, the founder of the organization promised to eventually promote me to a senior leadership role, _________ in the end I wound up deeply disappointed. Three months into the new job, they hired someone else to _________ that position.

This _________ promise left me hurt and angry by the decision made. How could this _________ to me? The promise of being on the senior leadership team was a huge factor in my decision to _________ the job offer. As a result, I moved my family across the country and couldn’t easily move back. This was a _________ time for me. _________ my head sought answers and my heart __________ emotions, my wife, Elba, gave me the best __________. She said, Stay focused… stay faithful. This meant keeping your eyes on the __________ at hand and staying faithful to the task. It wasn’t easy, but these words __________ my attitude and actions during that time. I remained focused and faithful until a __________ chance opened at another organization.

When facing an unexpected __________ of events at work, it can seem much easier to slack off (懈怠), get angry, blame others or do foolish things, but these __________ can be costly and self-destructive. Fighting the bad with bad doesn’t __________ up to good. Good can come from bad through our __________. Spiritual and personal lessons are weaved into __________. The lessons I gained during that time have helped me to __________ life’s ups and downs.

1.A.precise B.puzzling C.relaxing D.bright

2.A.move B.project C.promotion D.interview

3.A.so B.and C.but D.for

4.A.rid B.fill C.test D.find

5.A.fixed B.known C.broken D.expected

6.A.appear B.return C.belong D.happen

7.A.make B.accept C.desire D.appreciate

8.A.vital B.common C.fundamental D.difficult

9.A.If B.Until C.When D.Because

10.A.felt B.battled C.ignored D.valued

11.A.advice B.topic C.reputation D.gesture

12.A.job B.trouble C.honor D.choice

13.A.stopped B.guided C.proved D.separated

14.A.secure B.practical C.vivid D.wonderful

15.A.turn B.success C.direction D.permit

16.A.lessons B.gurneys C.responses D.behaviours

17.A.add B.cut C.bring D.hold

18.A.urges B.efforts C.growth D.experience

19.A.culture B.approach C.hardship D.relation

20.A.give away B.look into C.put away D.get through

高三英语完形填空中等难度题查看答案及解析