— I feel it necessary that everything by the ...

— I feel it necessary that everything 　　　　　　 by the time our manager arrives.

— Yes, to make sure the conference is held on schedule.

A. is ready　　 B. will be ready

C. be ready　　 D. has been ready

高三英语单项填空中等难度题查看答案及解析

— I feel it necessary that everything 　　　　　　 by the time our manager arrives.

— Yes, to make sure the conference is held on schedule.

A. is ready　　 B. will be ready

C. be ready　　 D. has been ready

高三英语单项填空中等难度题查看答案及解析

Most of the time, the ground feels solid beneath our feet. That's comforting. But it's also misleading because there's actually a lot going on underground. Masses of land (called plates) slip, slide, and bump against each other, slowly changing the shape of continents and oceans over millions and billions of years.

Scientists know that Earth formed about 4. 5 billion years ago.　 They also know that our planet was hot at first. As it cooled, its outermost layer, called the crust （地壳), eventually formed moving plates. Exactly when this shift happened, however, is an open question.

Now, an international group of researchers has an answer. They've found new evidence suggesting that Earth's crust started shifting at least 3.8 billion years ago. The new estimate is l. 3 billion years earlier than previous ones.

Not long before 3. 8 billion years ago,　 lots of small planets were hitting Earth, keeping its crust in a hot, melting state. After the hard crust formed, much of it sank at various times into the planet's hot insides. There, it melted before returning to the surface.

In some places, however, the crust never sank. One of the oldest such places is in Greenland, in an area called the Isua supracrustal (上地壳) belt. The rocky crust there is between 3. 7 and 3. 8 billion years old. The belt was once part of the seafloor, but now it is exposed to air.

The researchers recently took a close look at the Isua supracrustal belt. They noticed long, parallel cracks（裂缝）in the rock that have been filled in with a type of volcanic rock.

To explain this structure, the scientists propose that tension in the crust caused the seafloor to crack open long ago. Hot, liquid rock oozed from deep inside Earth to fill the cracks. Finally, the whole area cooled, forming what we see today.

That explanation, plus chemical clues inside the rock, suggests that the Isua supracrustal belt was once part of plate under the ocean, beginning around 3.8 billion years ago.

“It's a fantastic case of solving a jigsaw puzzle（拼图）,”says one of the researchers. He notes that the puzzle was “a very difficult one because these rocks are all very old and have been badly ruined".

1.The underlined phrase “oozed from" in Paragraph 7 is closest in meaning to________.

A. filled up gradually

B. washed away quickly

C. flew out of slowly

D. broke through suddenly

2.What can we infer from the text?

A. The shapes of continents and oceans changed slowly.

B. The Earth's crust started shifting l.3 billion years ago.

C. The crust began to shift when the Earth was hot.

D. The hit from small planets made the Earth cool.

3.What do scientists know about the past of the Isua supracrustal belt?

A. It was once covered by hot, liquid rock.

B. It remained under the deep sea.

C. It stayed hot and sinking.

D. It kept moving slowly.

4.The text is mainly about________.

A. why the Earth cooled

B. how the Isua supracrustal belt formed

C. whether the ground beneath our feet is still

D. when Earth's crust began shifting

高三英语阅读理解困难题查看答案及解析

It’s undeniable that spending time outdoors and in nature lifts our spirits and makes us feel more centered and at peace. When we breathe in fresh air, and enjoy the beauty of trees, streams and oceans, we naturally tend to feel more connected to ourselves and others.

Over the past decade, scientists have been exploring why nature — and dirt specifically — is such a powerful tool in improving our mood. According to researchers, the secret may lie in the mi¬crobes （微生物）of the soil. One bacterium specifically----Mycobacterium Vaccae （M. Vaccae） —has been identified as having the power to affect our moods and cognitive function as well.

Experiments conducted at Sage Colleges in New York found that contact with M. Vaccae can increase serotonin levels in the brain — a chemical that is associated with higher levels of happi¬ness ,increased focus, and reduced anxiety. In order to explore how the bacteria can improve learn¬ing, researchers Dory Mathews and Susan Jenks experimented with mice in a maze. Mice that in¬gested the bacteria navigated the maze twice as fast as the control group and proved less anxious as well.

Humans can absorb M. Vaccae just by playing in the dirt. We take in it when we breathe, we consume it in organic vegetables, and it can also enter our bloodstream through skin contact, espe¬cially where we have open cuts. This may explain why children in school perform better after break.

Neuroscientist Christopher Lowry at the University of Bristol in England believes that he has i- dentified why this incredible bacterium works. "What we think happens is that the bacteria activate immune cells, which release chemicals called cytokines that then act on receptors on the sensory nerves to increase their activity. ”

Beyond the power of M. Vaceae, scientists have been proving for decades that exposure to dirt, and the huge number of microbes found in dirt, can strengthen our immune system. When our body comes into contact with bacteria, it stores die infonnation in a type of library and can then use that information to fight sickness and infection more effectively.

Happiness, focus, less anxiety......I’ll　 take a double dose of dirt; please!

1.What raises people’s spirits while spending time outdoors?

A. Air. B. Trees.

C. Water D. Dirt.

2.How does M. Vaccae work?

A. By working on sensory nerves. B. By fighting sickness and infisction,

C. By strengthening the immune system. D. By making immune cells active.

3.According to the text, what does the author intend to do next?

A. Provide some advice on reducing anxiety for readers,

B. Summarize the previous paragraphs about lifting one’s mood.

C. Explain how he or she will expose himself or herself to dirt.

D. Introduce a new topic related to dirt for discussion.

4.What can be a suitable title for the text?

A. Fight Sickness and Infection More Effectively

B. How Getting Dirty Can Actually lift Your Mood

C. Let’s Take a Deep Breath of Fresh Air

D. Enjoy Beauty and Naturally Connect to Others

高三英语阅读理解中等难度题查看答案及解析

It is necessary for children to exchange ideas with parents from time to time so that the generation gap between parents and children can be _________.

A. released                 B. replaced            C. narrowed          D. disappeared

高三英语单项填空中等难度题查看答案及解析

It is necessary for children to exchange ideas with parents from time to time so that the generation gap between parents and children can be _____.

A. released    B. replaced

C. narrowed    D. disappeared

高三英语单项填空中等难度题查看答案及解析

We consider ____ absolutely necessary that we should open our door to the outside world.

A. it             B. what             C. that             D. which

高三英语单项填空中等难度题查看答案及解析

211. Our daily Beijing Mean Time is in fact Nanjing Time. That’s because we set our time by the standards of Tzichingshan (Zijinshan) ______ in Nanjing.

高三英语单项填空简单题查看答案及解析

Excited by the news, he couldn’t find words to c__________ his feeling at that time.

高三英语完成句子中等难度题查看答案及解析

You hear the comment all the time: the U.S. economy looks good by figures, but it doesn’t feel good. Why doesn’t ever-greater wealth promote ever-greater happiness? It is a question that dates at least to the appearance in 1958 of The Wealthy Society by John Kenneth Galbraith, who died recently at 97.

The Wealthy Society is a modern classic because it helped describe a new moment in the human condition. For most of history, “hunger, sickness, and cold” threatened nearly everyone, Galbraith wrote. “Poverty was found everywhere in that world. Obviously it is not of ours.” After World War II, the fear of another Great Depression gave way to an economic growth. By the 1930s unemployment had averaged 18.2 percent; in the 1950s it was 4.5 percent.

To Galbraith, materialism had gone mad and would cause discontent. Through advertising, companies conditioned consumers to buy things they didn’t really want or need. Because so much spending was artificial, it would be unsatisfying. Meanwhile, government spending that would make everyone better off was being cut down because people wrongly considered government only as “a necessary bad.”

It’s often said that only the rich are getting ahead; everyone else is standing still or falling behind. Well, there are many undeserving rich — overpaid chief managers, for instance. But over any meaningful period, most people’s incomes are increasing. From 1995 to 2004, people feel “squeezed” because their rising incomes often don’t satisfy their rising wants — for bigger homes, more health care, more education, and faster Internet connections.

The other great disappointment is that it has not got rid of insecurity. People regard job stability as part of their standard of living. As company unemployment increased, that part has gradually become weaker. More workers fear they’ve become “the disposable American,” as Louis Uchitelle puts it in his book by the same name.

Because so much previous suffering and social conflict resulted from poverty, the arrival of widespread wealth suggested utopian (乌托邦式的) possibilities. Up to a point, wealth succeeds. There is much less physical suffering than before. People are better off. Unfortunately, wealth also creates new complaints.

Advanced societies need economic growth to satisfy the multiplying wants of their citizens. But the search for growth cause new anxieties and economic conflicts that disturb the social order. Wealth sets free the individual, promising that everyone can choose a unique way to self-accomplishment. But the promise is so unreasonable that it leads to many disappointments and sometimes inspires choices that have anti-social consequences, including family breakdown. Figures indicate that happiness has not risen with incomes.

Should we be surprised? Not really. We’ve simply confirmed an old truth: the seeking of wealth does not always end with happiness.

1.The Wealthy Society is a book ______.

A．about previous suffering and social conflict in the past

B．written by Louis Uchitelle who died recently at 97

C．indicating that people are becoming worse off

D．about why happiness does not rise with wealth

2.According to Galbraith, people feel discontented because ______.

A．materialism has run wild in modern society

B．they are in fear of another Great Depression

C．public spending hasn’t been cut down as expected

D．the government has proved to be necessary but ugly

3.Why do people feel“squeezed”when their average income rises considerably?

A．They think there are too many overpaid rich.

B．There is more unemployment in modern society.

C．Their material demands go faster than their earnings.

D．Health care and educational cost have somehow gone out of control.

4.What does Louis Uchitelle mean by “the disposable American” ?

A．People with a stable job.

B．Workers who no longer have secure jobs.

C．Those who see job stability as part of their living standard.

D．People who have a sense of security because of their rising incomes.

5.What has wealth brought to American society?

A．Stability and security.

B．Materialism and content.

C．A sense of self-accomplishment.

D．New anxiety, conflicts and complaints.

高三英语阅读理解中等难度题查看答案及解析