Just as some experts say, shopping by televis...

Just as some experts say, shopping by television will never take the place of shopping in ______ stores, because many people find shopping at a store ______ great enjoyment.

A. a; the       B. the; a           C. a; /             D. /; a

高三英语单项填空中等难度题查看答案及解析

Some experts have said that ________ children believe they can succeed, they will never become totally confident of themselves.

A．if　     B．since

C．once     D．unless

高三英语单项填空中等难度题查看答案及解析

For some time the expert __________ people of the health risks caused by passive smoking. He　　　 says he won't stop until all the smokers around him decide to quit smoking.

A. is warned        B. is warning            C. has been warning    D. has been warned

高三英语单项填空中等难度题查看答案及解析

Do you want to live another 100 years or more? Some experts say that scientific advances will one day enable humans to last tens of years beyond what is now seen as the natural limit of the human life span.

"I think we are knocking at the door of immortality(永生)," said Michael Zey, a Montclair State University business professor and author of two books on the future. "I think by 2075 we will see it and that’s a conservative estimate".

At the conference in San Francisco, Donald Louria, a professor at New Jersey Medical School in Newark said advances in using genes as well as nanotechnology（纳米技术）make it likely that humans will live in the future beyond what has been possible in the past. "There is a great push so that people can live from 120 to 180 years," he said. "Some have suggested that there is no limit and that people could live to 200 or 300 or 500 years."

However, many scientists who specialize in ageing are doubtful about it and say the human body is just not designed to last about 120 years. Even with healthier lifestyles and less disease, they say failure of the brain and organs will finally lead all humans to death.

Scientists also differ on what kind of life the super aged might live. "It remains to be seen if you pass 120, you know; could you be healthy enough to have good quality of life?" said Leonard Pooh, director of the University of Georgia Gerontology(老龄学) Center. "At present people who could get to that point are not in good health at all."

1.By saying "we are knocking at the door of immortality", Michael Zey means ________.

A．they believe that there is no limit of living

B．they are sure to find the truth about long living

C．they have got some ideas about living forever

D．they are able to make people live past the present life span

2.Donald Louria's attitude towards long living is that ________.

A．people can live from 120 to 180 years

B．it is still doubtful how long humans can live

C．the human body is designed to last about 120 years

D．it is possible for humans to live longer in the future

3.The underlined "it"（paragraph 4）refers to ________.

A．a great push

B．the idea of living beyond the present life span

C．the idea of living from 200 to 300 years

D．the conservative estimate

4.What would be the best title for this text?

A．Living Longer or Not

B．Science, Technology and Long Living

C．No Limit for Human Life

D．Healthy Lifestyle and Long Living

高三英语阅读理解中等难度题查看答案及解析

Experts say farmers will need to produce about 70 percent more food by the middle of the century. They predict that 9 billion people will need to be fed worldwide by 2050. The prediction means experts will need to develop more effective farming methods that cause less harm to the environment to produce more food. Experts say living things called bacteria could help achieve that goal. A bacterium is an organism.It is so small that it can be seen only with a microscope.

Researchers are finding extremely small organisms in the ground. One gram of soil contains between 100 million and one billion bacteria. Bacteria are taking part in a healthy ex- change with the plants that share the soil. Around plant roots, bacteria change chemicals in the air and soil into food for the plants. The bacteria include the material known as fungi(真菌). Some bacteria act as bodyguards. They produce anti-bodies and other chemicals to fight harmful bacteria.

Plants make sugar through a process called photosynthesis (光合作用).This happens when a plant receiving light changes water and carbon dioxide into food. Much of the sugar is pumped down through the roots. There, it is turned into sugar-based food and released into the soil. That is done to get bacteria to help the plants grow better. Some of the organisms turn chemicals in the air and soil into food that the plants can eat.

The biosciences company Novozymes already sells one kind of fungi. It has found a way to produce it in very large quantities and offer it to farmers as.a bio-pesticide (生物农药).A bio-pesticide protects crops from animals and bacteria. If so, farmers can harvest more crops.

1.What do the experts’ statistics in paragraph 1 show?

A.Bacteria have a good effect on farming.

B.There will be more harmful bacteria in 2050.

C.There's no need to worry about the problem of future food.

D.More food will be needed to feed more people in the future.

2.What's the connection between plants and bacteria according to paragraph 3?

A.Bacteria can't live without plants. B.Plants get benefit from bacteria .

C.They make sugar cooperatively. D.They compete for more sunshine.

3.What does Novozymes do?

A.It sells crops and animals.

B.It beautifies the environment.

C.It provides farmers with materials free of charge.

D.It produces fungi as a bio-pesticide.

4.What is the best title for the text?

A.Crops of High Quality Need Developing

B.Bacteria May Help Meet Food Needs of the Future

C.A Large Quantity of Farmland Should Be Improved

D.Diseases and Pests Can Be Controlled in the Future

高三英语阅读理解中等难度题查看答案及解析

As the saying goes, one is never too old to learn. After he _____, he will devote himself to gardening.

高三英语单项填空简单题查看答案及解析

As the saying goes, one is never too old to learn. After he _____, he will devote himself to gardening.

A.  retired         B.  has retired      C.  will retire         D.  had retired

高三英语单项填空中等难度题查看答案及解析

I will never forget the story I experienced when I worked as a doctor for some “special patients”.

With mixed emotions I went to the young criminal center to _________ vaccinations(接种疫苗). On one hand, I felt _________ to be able to _________ a service that might have a positive health effect on the prisoners. But, on the other hand, I felt a sense of sadness and _________as I saw the prisoners being _________ by guards to the nursing unit.

My last visit was very _________.For some reason, there was a(an) _________ in the air. And I felt a lightness as I spoke with each prisoner. We _________ stories, smiles and fears. Even the toughest prisoners seemed to be surrounded by light. As a mother, I saw them as not only youth, being _________ for crimes, but also as children with the __________ to change for the better. Obviously, most of them wanted to __________ longer!

There was one more prisoner. He was __________ to a different unit in a lonely cell. Two guards escorted us down and when we entered the cell, instant tears __________in my eyes. The area was sad. Guards there didn't smile. Later, we were done but I didn't want to __________,I gave the 17-year-old a gentle touch and smile as I __________ to him what to do concerning the side effects. At first there was no response, so I just __________ at his bare feet and then to my supplies. I thought that I had better pack up. __________,he looked up at me and smiled before he said “Thanks” and then he gave me a thumbs-up. I smiled back, saying, “You are welcome. Take care of yourself!”

It was wonderful to receive a kind __________ from someone who was in such a __________ place. As we walked back to the main entrance, we didn't speak. Where there can be a smile, there is hope. Sometimes __________ can be very powerful.

1.A.accept B.deliver C.illustrate D.give

2.A.thankful B.satisfied C.lucky D.thrilled

3.A.suggest B.provide C.confirm D.observe

4.A.disappointment B.annoyance C.loneliness D.doubt

5.A.escorted B.accompanied C.directed D.thrown

6.A.valuable B.enjoyable C.memorable D.adaptable

7.A.expectation B.lightness C.attraction D.complaint

8.A.expanded B.told C.shared D.presented

9.A.punished B.scolded C.commented D.criticized

10.A.reason B.impression C.arrangement D.potential

11.A.talk B.stay C.relax D.work

12.A.selected B.limited C.reduced D.appointed

13.A.turned up B.messed up C.welled up D.took up

14.A.shout B.divorce C.wait D.leave

15.A.confirmed B.submitted C.recommended D.explained

16.A.put down B.looked down C.kept down D.pulled down

17.A.Strangely B.Occasionally C.Suddenly D.Deliberately

18.A.response B.solution C.belief D.assessment

19.A.neat B.sacred C.crazy D.harsh

20.A.virtues B.smiles C.ambitions D.inspirations

高三英语完形填空中等难度题查看答案及解析

91.You will find as you read fiats book that you just can’t keep some of these stones to ______. You will want to share them with a friend.

高三英语单项填空简单题查看答案及解析

You will find as you read this book that you just can’t keep some of these stories to ________. You will want to share them with a friend.

A. itself B. yourself C. himself D. themselves

高三英语单项填空困难题查看答案及解析