Recently, researchers in the US have carried ...

Recently, researchers in the US have carried out a study on laughing, one of the most natural characteristics of human behavior.

Jo-Anne Bachorowsky, a psychology professor at Vandebilt University,36  a team of researchers who   37   a total of 11 short videos to 97 young adult volunteers in the US. They found that the participants produced a   38of sounds when they laughed,39grunts(呼噜声) and snorts(哼声).

The researchers found that some of the 40 were dependent 41gender(性别). Men laughed with grunts and snorts more often than women, 42women’s 43 was more song-like.

They also found that people’s laughter could change, 44who they were with at the time. Whether they were with a man or a woman and 45person was a friend or a 46 both played a part in laughter.

The researchers found that women’s laughter was very high with a 47 pitch(音高) when they were with male strangers. And women taking 48   in the study laughed more often when they were with a male friend than when they were with a(n) 49 friend or a male stranger. But men laughed more freely with friends of either sex than with strangers of either sex.

Scientists believe that the 50consumed in laughing 100 times is 51  to 15 minutes on an exercise bike. Another52 of laughter is53 it improves our mental health. Laughter reduces our levels of stress. It also helps us 54 serious illness.

55,we think laughter can make us feel good.

高二英语完型填空中等难度题查看答案及解析

To carry out the research on the chimp will ______ living in the jungle for several years.

A.include B.contain C.focus D.involve

高二英语单项填空中等难度题查看答案及解析

Researchers have studied how birth order affects kid’s personalities in the past, but one study out of the United Kingdom has found that firstborns may have an educational advantage over their younger siblings (兄弟姐妹).

Researchers at the University of Essex’s Institute for Social and Economic Research surveyed 3,553 individuals and 1,503 groups of siblings, and discovered that firstborn children tended to have higher educational aspirations and attainment. Only children and firstborn twins were not included in the study.

For each family involved in the study, researcher Feifei Bu examined sibling birth order, the number of children in the family, age spacing, sex, health, relationships with one another and educational aspirations. She found that firstborns had a greater probability—16 percent higher—of attending further education, compared with later-born sibling.

“The advantage of firstborns in educational outcomes may be partially explained by the fact that firstborns tend to have higher aspirations which push them toward high education levels,” Bu wrote in the published study.

She further explained to The Guardian that parenting could play a role. “It could be that the parents simply devote more time and energy to them; it could be that they are actually more intelligent. For me, I tend to lean towards the theory that the amount of time, energy and involvement that parents put into caring for their children is possibly at work here,” she said.

She also found age spacing to be a contributing factor. The further apart in age the siblings—for example, a six year instead of one year difference—the more likely both kids were to be successful. The idea is that with widely spaced siblings, parents have the ability to spread out their resources. In other words, they have time to give each child more time and money.

But younger siblings shouldn’t worry. The world is full of successful middle and youngest children willing to prove this study wrong.

1.Who are more likely to complete higher levels of education according to Paragraphs 1 and 2?

A.Only children. B.Firstborn twins.

C.Younger siblings. D.Firstborn siblings.

2.What is possibly important for kids’ educational achievement according to Bu?

A.Parental investment. B.Parents’ intelligence.

C.Kids native intelligence. D.Kids’ school environment.

3.What is the influence of wider age spacing between two siblings?

A.It may cause conflicts between them.

B.It may place more pressure on parents.

C.Both of them are more likely to succeed.

D.They are likely to be different from each other.

4.How is the text mainly developed?

A.By listing examples. B.By giving descriptions.

C.By setting down general rules. D.By presenting research findings.

高二英语阅读理解中等难度题查看答案及解析

Recently, a study was carried out to determine who was the greatest American president．Sixty-five presidential historians took part in it, and they judged the past forty-two American leaders based on ten leadership qualities, including public persuasiveness(信服), crisis leadership, management of the economy, moral leadership, and conduct of international relations．The historians also looked at administrative ability (管理能力), relations with Congress, ability to set goals, and the pursuit of equal justice for all．Finally, the experts took into consideration the historical period in which the president lived．

The historians chose Abraham Lincoln as American’s greatest president．He had also been named best president in a similar study in 2000．Abraham Lincoln was the president who led the nation through the Civil War in the 1860s, and was able to unite it in the end．He also took the first steps to abolish slavery in America．

Edna Medford, a professor of history at Howard University in Washington, D.C., was an adviser on this study and the earlier one．She says Abraham Lincoln is seen to represent the values the nation most honors, such as truthfulness, moderation, and respect for human rights．

The historians put American’s first president, George Washington, second on the list, while Franklin D．Roosevelt, Theodore Roosevelt, and Harry Truman follow in that order．John   F．Kennedy, the country’s first Roman Catholic president, is sixth on the list．Like Lincoln, Kennedy was murdered while in office．

Among recent presidents, Ronald Reagan was named the tenth best and Bill Clinton rated fifteenth, while the historians put former president George W．Bush at number thirty-six．His father, George H.W．Bush, did much better, being placed at number eighteen．

1.We learn from the text that ___________．

A．this is the second time that Abraham Lincoln has been chosen as America’s greatest president

B．Edna Medford didn’t take part in the study conducted in 2000．

C．George H.W．Bush was thought to have done worse in office than George W．Bush

D．Harry Truman was rated the fourth-best president by the study

2.Which of the following belong to the ten leadership qualities considered?

a．Being able to persuade the public

b．Taking effective measures during a financial crisis．

c．Balancing home life and career．

d．Pursuing equal justice for all．

A．a,b,c           B．b,c,d          C．a,b,d          D．a,c,d

3.Who is rated worst among the following four presidents?

A．John F．Kennedy                  B．George Washington

C．Bill Clinton                     D．George W．Bush

4.The text is mainly about ________．

A．the ten qualities a great president needs

B．a study of American presidents

C．the values the American nation honors most

D．how Abraham Lincoln improved the country

高二英语阅读理解中等难度题查看答案及解析

Recently, a study was carried out to determine who was the greatest American president．Sixty-five presidential historians took part in it, and they judged the past forty-two American leaders based on ten leadership qualities, including public persuasiveness(信服), crisis leadership, management of the economy, moral leadership, and conduct of international relations．The historians also looked at administrative ability (管理能力), relations with Congress, ability to set goals, and the pursuit of equal justice for all．Finally, the experts took into consideration the historical period in which the president lived．

The historians chose Abraham Lincoln as American’s greatest president．He had also been named best president in a similar study in 2000．Abraham Lincoln was the president who led the nation through the Civil War in the 1860s, and was able to unite it in the end．He also took the first steps to abolish slavery in America．

Edna Medford, a professor of history at Howard University in Washington, D.C., was an adviser on this study and the earlier one．She says Abraham Lincoln is seen to represent the values the nation most honors, such as truthfulness, moderation, and respect for human rights．

The historians put American’s first president, George Washington, second on the list, while Franklin D．Roosevelt, Theodore Roosevelt, and Harry Truman follow in that order．John 　 F．Kennedy, the country’s first Roman Catholic president, is sixth on the list．Like Lincoln, Kennedy was murdered while in office．

Among recent presidents, Ronald Reagan was named the tenth best and Bill Clinton rated fifteenth, while the historians put former president George W．Bush at number thirty-six．His father, George H.W．Bush, did much better, being placed at number eighteen．

1.We learn from the text that ___________．

A．this is the second time that Abraham Lincoln has been chosen as America’s greatest president

B．Edna Medford didn’t take part in the study conducted in 2000．

C．George H.W．Bush was thought to have done worse in office than George W．Bush

D．Harry Truman was rated the fourth-best president by the study

2.Which of the following belong to the ten leadership qualities considered?

a．Being able to persuade the public

b．Taking effective measures during a financial crisis．

c．Balancing home life and career．

d．Pursuing equal justice for all．

A．a,b,c　　　　 B．b,c,d　　　　　 C．a,b,d　　　　　 D．a,c,d

3.Who is rated worst among the following four presidents?

A．John F．Kennedy　　　　　　　 B．George Washington

C．Bill Clinton 　　　　　　　　 D．George W．Bush

4.The text is mainly about ________．

A．the ten qualities a great president needs

B．a study of American presidents

C．the values the American nation honors most

D．how Abraham Lincoln improved the country

高二英语阅读理解中等难度题查看答案及解析

Recently, a study was carried out to determine who was the greatest American president. Sixty-five presidential historians took part in it, and they judged the past forty-two American leaders based on ten leadership qualities, including public persuasiveness(信服), crisis leadership, management of the economy, moral leadership, and conduct of international relations. The historians also looked at administrative ability (管理能力), relations with Congress, ability to set goals, and the pursuit of equal justice for all. Finally, the experts took into consideration the historical period in which the president lived.

The historians chose Abraham Lincoln as American’s greatest president. He had also been named the greatest president in a similar study in 2000.Abraham Lincoln was the president who led the nation through the Civil War in the 1860s, and was able to unite it in the end. He also took the first steps to abolish(废除) slavery in America.

Edna Medford, a professor of history at Howard University in Washington, D.C., was an adviser on this study and the earlier one. She says Abraham Lincoln is seen to represent the values the nation most honors, such as truthfulness, moderation, and respect for human rights.

The historians put American’s first president, George Washington, second on the list, while Franklin D. Roosevelt, Theodore Roosevelt, and Harry Truman follow in that order. John F. Kennedy, the country’s first Roman Catholic president, is sixth on the list. Like Lincoln, Kennedy was murdered while in office.

Among recent presidents, Ronald Reagan was named the tenth best and Bill Clinton rated fifteenth, while the historians put former president George W. Bush at number thirty-six. His father, George H.W. Bush, did much better, being placed at number eighteen.

1.We learn from the text that ___________.

A. this is the second time Abraham Lincoln has been chosen as America’s greatest president

B. Edna Medford didn’t take part in the study conducted in 2000

C. George H.W. Bush was thought to have done worse in office than George W.Bush

D. Harry Truman was rated the fourth-best president by the study

2. Which of the following belong to the ten leadership qualities considered?

a. Being able to persuade the public.

b. Taking effective measures during a financial crisis.

c. Balancing home life and career.

d. Pursuing equal justice for all.

A. a,b,c　　　　 B. b,c,d　　　　　　 C. a,b,d　　　　　　 D. a,c,d

3.Who is rated worst among the following four presidents?

A. John F. Kennedy　　　　　　　　　　 B. George W. Bush

C. Bill Clinton　　　　　　　　　　　　 D. George Washington

4.The text is mainly about ________.

A. the ten qualities a great president needs

B. how Abraham Lincoln improved the country

C. the values the American nation honors most

D.a study of American presidents

高二英语阅读理解中等难度题查看答案及解析

US researchers have found traces of an ancient lake on Mars recently, increasing hopes of discovering evidence that billions of years ago the Red planet hosted life.

The lake, which dates back some 3.4 billion years, appears to have covered as much as 80 square miles and was up to 1,500 feet deep, said the team from the University of Colorado.

"This is the first clear evidence of shorelines on the surface of Mars," said Boulder's research associate, Gaetano Di Achille, in a study published in the latest edition of Geophysical Research Letters.

"The identification of the shorelines and accompanying geological evidence allows us to calculate the size and volume of the lake, which appears to have formed about 3.4 billion years ago."

Analysis of the images has shown the water carved out the canyon (溪谷) in which it was found, which then opened out into a valley depositing (使淤积) sediment (沉积) which formed a delta (三角洲).

"Finding shorelines is a great discovery to us," said assistant professor Brian Hynek, adding it showed the lake existed at a time when Mars was thought to have been cold and dry.

Scientists believe the oldest surfaces on Mars formed during the wet and warm era known as the Noachan epoch, about 4.1 billion to 3.7 billion years ago.

The newly discovered lake is believed to date from the Hesperian era and postdates the end of the warm and wet period on Mars by 300 million years, according to the study.

Scientists believe deltas next to the lake may well hold secrets about past life on Mars as such places on Earth have become the natural deposits of organic carbon and other markers of life.

1.The size of the lake found on Mars is ______.

A. 80 square miles　　

B. 1,500 square miles

C. 3.4 billion square miles　　

D. 300 million square miles

2.When the lake existed, the weather on Mars was ____.

A. hot and wet B. wet and warm　　

C. cold and dry　 D. cold and wet

3.Why do scientists think deltas near the lake may hold secrets about past life on Mars?

A. Because similar places on Earth have become natural deposits of markers of life.

B. Because someone has put secrets about past life on Mars there.

C. Because past life has been found in other deltas on Mars.

D. Because some people are said to have already seen life marks there.

4.Which of the following statements is NOT true according to the passage?

A. The Noachan epoch was a wet and warm era.

B. The lake might have existed 3.4 billion years.

C. The discovery can’t fully prove that the Mars once hosted life.

D. The lake traces prove that there exists life on Mars now.

高二英语阅读理解中等难度题查看答案及解析

US researchers have found traces of an ancient lake on Mars recently, increasing hopes of discovering evidence that billions of years ago the Red planet hosted life.

The lake, which dates back some 3.4 billion years, appears to have covered as much as 80 square miles and was up to 1,500 feet deep, said the team from the University of Colorado.

“This is the first clear evidence of shorelines on the surface of Mars,”said Boulder’ s research associate, Gaetano Di Achille, in a study published in the latest edition of Geophysical Research Letters.

“The identification of the shorelines and accompanying geological evidence allows us to calculate the size and volume of the lake, which appears to have formed about 3.4 billion years ago.”

Analysis of the images has shown the water carved out the canyon (溪谷) in which it was found, which then opened out into a valley depositing (使淤积) sediment (沉积) which formed a delta (三角洲).

“Finding shorelines is a great discovery to us,” said assistant professor Brian Hynek, adding it showed the lake existed at a time when Mars was thought to have been cold and dry.

Scientists believe the oldest surfaces on Mars formed during the wet and warm era known as the Noachan epoch, about 4.1 billion to 3.7 billion years ago.

The newly discovered lake is believed to date from the Hesperian era and postdates the end of the warm and wet period on Mars by 300 million years, according to the study.

Scientists believe deltas next to the lake may well hold secrets about past life on Mars as such places on Earth have become the natural deposits of organic carbon and other markers of life.

1.The size of the lake found on Mars is ______.

A. 80 square miles                  B. 1,500 square miles

C. 3.4 billion square miles             D. 300 million square miles

2.When the lake existed, the weather on Mars was ____.

A. hot and wet      B. wet and warm         C. cold and dry     D. cold and wet

3.Why do scientists think deltas near the lake may hold secrets about past life on Mars?

A. Because similar places on Earth have become natural deposits of markers of life.

B. Because someone has put secrets about past life on Mars there.

C. Because past life has been found in other deltas on Mars.

D. Because some people are said to have already seen life marks there.

4.Which of the following statements is NOT true according to the passage?

A. The Noachan epoch was a wet and warm era.

B. The lake might have existed 3.4 billion years.

C. The discovery can’ t fully prove that the Mars once hosted life.

D. The lake traces prove that there exists life on Mars now.

高二英语阅读理解中等难度题查看答案及解析

We are bound ______ with difficulties in carrying out this research.

A．to meet                               B．to have met

C．meeting                              D．having met

高二英语单项填空中等难度题查看答案及解析

To our disappointment, the research they have carried out has been limited ____ production profits, ______ making sure that GM foods are safe.

A. to increase, instead of

B. to increasing, as well as

C. to increase, other than

D. to increasing, rather than

高二英语单项填空中等难度题查看答案及解析