．The theory is true _______ the hotter a body...

．The theory is true _______ the hotter a body is, the more energy it gives off.

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

高二英语单项填空简单题查看答案及解析

Just as the world’s most respected scientific bodies have confirmed that the world is getting hotter, they have also stated that there is strong evidence that humans are driving the warming. Countless recent reports from the world’s leading scientific bodies have said the same thing. For example, a 2010 summary of climate science by the Royal Society stated that: “There is strong evidence that the warming of the Earth over the last half-century has been caused largely by human activity.”

The idea that humans could change the planet’s climate may be counter-intuitive (与直觉不符的), but the basic science is well understood. Each year, human activity causes billions of tons of greenhouse gases to be released (释放) into the atmosphere. As scientists have known for years, these gases hold heat that would otherwise escape to space, wrapping the planet in an invisible blanket.

Of course, the planet’s climate has always been changing thanks to “natural” factors such as changes in solar or volcanic activity, or cycles relating the Earth’s going around the sun. According to the scientific literature, however, the warming recorded to date matches the pattern of warming we would expect from a build-up of greenhouse gas in the atmosphere – not the warming we would expect from other possible causes.

Even if scientists did discover another reasonable explanation for the warming observed so far, that would beg a difficult question. As Robert Henson puts it in The Rough Guide to Climate Change: “If some newly discovered factor can account for the climate change, then why can’t carbon dioxide and the other greenhouse gases?

The only way to prove with 100% certainty that humans are responsible for global warming would be to run an experiment with two identical Earths – one with human influence and one without. That obviously isn’t possible, and so most scientists are careful not to state human influence as an absolute certainty．

1.In most scientists’ opinion, the global warming is mainly caused by 　　 ____　 ．

A. solar activity

B. volcanic activity

C. the Earth’s going around the sun

D. human activity

2.The text is developed by 　　 ____ ．

A. giving typical examples

B. following the order of space

C. analyzing a theory and arguing it

D. comparing and finding differences

3.The underline word “identical” means 　　 ____　 ．

A. totally different　　　　　　　　　　　　 B. exactly the same

C. extremely important　　　　　　　　 　　 D. relatively independent

高二英语阅读理解中等难度题查看答案及解析

Perhaps the most famous theory, the study of body movement, was suggested by Professor Ray Birdwhistell. He believes that physical appearance is often culturally programmed. In other words, we learn our looks—we are not born with them. A baby has generally informed face features. A baby, according to Birdwhistell, learns where to set the eyebrows by looking at those around-family and friends. This helps explain why the people of some areas of the United States look so much alike, new Englanders or Southerners have certain common face features that cannot be explained by genetics(遗传学). The exact shape of the mouth is not set at birth, it is learned after. In fact, the final mouth shape is not formed until well after new teeth are set. For many, this can be well into grown-ups. A husband and wife together for a long time often come to look alike. We learn our looks from those around us. This is perhaps why in a single country area where people smile more than those in other areas. In the United States, for example, the South is the part of the country where the people smile most frequently. In New England they smile less, and in the western part of New York State still less. Many southerners find cities such as New York cold and unfriendly, partly because people on Madison Avenue smile less than people on Peachtree Street in Atlanta. Georgia. People in Atlanta, Georgia. People in largely populated areas also smile and greet each other in public less than people in small towns do.

1. Ray Birdwhistell believes that physical appearance ____.

2.According to the passage, the final mouth shape is formed ___.

3. Ray Birdwhistell can tell what area of the United States a person is from by ___.

4. This passage might have been taken out of a book dealing with ___.

高二英语阅读理解简单题查看答案及解析

—What is the model plane like?

－Well, the wings of the plane are　　 of its body.

A. more than the length twice　　 B. twice more than the length

C. more than twice the length　　 D. more twice than the length

高二英语单项填空中等难度题查看答案及解析

A lot of people ______ the theory that acupuncture can produce chemicals in the body which reduce pain.

A．correspond to                          B．relate to

C．subscribe to                           D．refer to

高二英语单项填空中等难度题查看答案及解析

Behind most of the bad things we do to our bodies as adults, eating more than we should is the idea we carry with us from childhood. On one hand, we assume that we are indestructible. On the other hand, we think that any damage we impose on ourselves can be undone when wβfinally clean up our act.

If the evidence for how wrong the first idea is isn’t apparent when you stand naked in front of the mirror, just wait. But what if you eat right and drop all your bad habits? Is there still time to repair the damage?

To a surprising degree, the answer is yes. Over the past five years, scientists have collected a wealth of data about what happens when aging people with bad habits decide to turn their lives around.

The heartening conclusion: the body has an amazing ability to heal itself, provided the damage is not too great.

The effects of some bad habits-smoking, in particular-can haunt you for decades. But the damage from other habits can be largely healed.

“Any time you improve your behavior and make lifestyle changes, they make a difference from that point on.”says Dr. Jeffey Koplan.“Maybe not right away. It’s like slamming on the brakes. You do need a certain distance.”

But the distance can be remarkably short. Consider the recent announcements from the front lines of medical research: ---A study concluded that women who consume as little as two servings of fish a week cut their risk of suffering a stroke to half that of women who eat less than one serving of fish a month. ---The day you quit smoking, the carbon monoxide levels in your body drop dramatically. Within weeks, your blood becomes less sticky and your risk of dying from a heart attack starts to decline ... Adopting healthy habits won’t cure all that bothers you, of course. But doctors believe that many chronic diseases-from high blood pressure to heart disease and even some cancers-can be warded off with a few sensible changes in lifestyle.

Not sure where to start? Surprisingly, it doesn’t matter, since one positive change usually leads to another. Make enough changes, and you'll discover you’ve adopted a new way of life.

1.Most people with bad habits of eating more than they should believe that　　　　　 .

A.their bodies cannot be damaged by the bad habits

B.they can force themselves to clean up the had habits later

C.their bodies can heal all the damage without the help from outside

D.they can never change the habits that have developed for decades

2.The evidence against the assumption that we are indestructible　　　　　 .

A.is seldom apparent B.is clearly shown in the mirror

C.is still a question D.will appear obvious sooner or later

3.According to the recent announcements　　　　　 .

A.women should eat as much fish as possible

B.men don’t have to eat as much fish as women

C.eating a little more fish can improve women’s health

D.women are at a higher risk of suffering a stroke than men

4.It is implied in the passage that　　　　　 .

A.the blood of smokers is more sticky than that of non-smokers

B.chronic diseases can be cured ifwe drop our habit of smoking

C.smokers have lower levels of carbon monoxide than non-smokers

D.smokers will be unlikely to die from heart attack if they quit smoking

高二英语阅读理解中等难度题查看答案及解析

Behind most of the bad things we do to our bodies as adults, eating more than we should is the idea we carry with us from childhood. On one hand, we assume that we are indestructible. On the other hand, we think that any damage we impose on ourselves can be undone when wβfinally clean up our act.

If the evidence for how wrong the first idea is isn’t apparent when you stand naked in front of the mirror, just wait. But what if you eat right and drop all your bad habits? Is there still time to repair the damage?

To a surprising degree, the answer is yes. Over the past five years, scientists have collected a wealth of data about what happens when aging people with bad habits decide to turn their lives around.

The heartening conclusion: the body has an amazing ability to heal itself, provided the damage is not too great.

The effects of some bad habits-smoking, in particular-can haunt you for decades. But the damage from other habits can be largely healed.

“Any time you improve your behavior and make lifestyle changes, they make a difference from that point on.”says Dr. Jeffey Koplan.“Maybe not right away. It’s like slamming on the brakes. You do need a certain distance.”

But the distance can be remarkably short. Consider the recent announcements from the front lines of medical research: ---A study concluded that women who consume as little as two servings of fish a week cut their risk of suffering a stroke to half that of women who eat less than one serving of fish a month. ---The day you quit smoking, the carbon monoxide levels in your body drop dramatically. Within weeks, your blood becomes less sticky and your risk of dying from a heart attack starts to decline ... Adopting healthy habits won’t cure all that bothers you, of course. But doctors believe that many chronic diseases-from high blood pressure to heart disease and even some cancers-can be warded off with a few sensible changes in lifestyle.

Not sure where to start? Surprisingly, it doesn’t matter, since one positive change usually leads to another. Make enough changes, and you'll discover you’ve adopted a new way of life.

1.Most people with bad habits of eating more than they should believe that　　　　　 .

A. their bodies cannot be damaged by the bad habits

B. they can force themselves to clean up the had habits later

C. their bodies can heal all the damage without the help from outside

D. they can never change the habits that have developed for decades

2.The evidence against the assumption that we are indestructible　　　　　 .

A. is seldom apparent　　 B. is clearly shown in the mirror

C. is still a question　　 D. will appear obvious sooner or later

3.According to the recent announcements　　　　　 .

A. women should eat as much fish as possible

B. men don’t have to eat as much fish as women

C. eating a little more fish can improve women’s health

D. women are at a higher risk of suffering a stroke than men

4.It is implied in the passage that　　　　　 .

A. the blood of smokers is more sticky than that of non-smokers

B. chronic diseases can be cured ifwe drop our habit of smoking

C. smokers have lower levels of carbon monoxide than non-smokers

D. smokers will be unlikely to die from heart attack if they quit smoking

高二英语阅读理解中等难度题查看答案及解析

Body language is one of the most powerful means of communication, often even more powerful than spoken language. It is said that our body movements communicate about 50 percent of what we really mean while words only express 7 percent. So, while your mouth is closed, your body is just saying.

Arms. How you hold your arms shows how open and receptive you are to people you meet. If you keep your arms to the sides of your body or behind your back, this suggests you are not afraid of taking on whatever comes your way. Outgoing people generally use their arms with big movements, while quieter people keep them close to their bodies. If someone upsets you, just cross your arms to show you’re unhappy!

Head. When you want to appear confident, keep your head level. If you are a monitor in class, you can also take on this position when you want your words to be taken seriously. However, to be friendly in listening or speaking, you must move your head a little.

Legs. Your legs tend to move around a lot more than normal when you are nervous or telling lies. If you are at interviews, try to keep them still!

Posture (姿势). A good posture makes you feel better about yourself. If you are feeling down, you normally don’t sit straight, with your shoulders inwards. This makes breathing more difficult, which can make you feel nervous or uncomfortable.

Mouth. When you are thinking, you often purse(噘嘴) your lips. You might also use this position to hold back an angry comment you don’t wish to show. However, it will probably still be noticed, and people will know you’re not pleased.

Face. When you lie, you might put on a false face. But that expression would crack briefly, allowing displays of true emotions such as happiness, sadness, disgust (厌恶) and fear to come through.

1.When someone is keeping his arms behind his back, he tries to tell you that ________.

A. he is angry            B. he is outgoing

C. he is cool            D. he is not afraid

2.If you want to appear confident, you should ________.

A. cross your arms

B. move your head a little

C. keep your head level

D. move your arms a lot

3.Which of the following movements shows someone is nervous?

A. Not sitting straight with the shoulders inwards.

B. Moving around a lot more than normal.

C. Keeping the arms to the sides of the body.

D. Having the lips pursed to hold back an angry comment.

4.What can we infer from the passage?

A. Body language can express more meanings than words do in communication.

B. It’s not polite to use body language in formal communication.

C. Different people in different countries must have the same understanding of the same body movement.

D. We cannot communicate with others without words.

高二英语阅读理解中等难度题查看答案及解析

The theory _____ by Einstein was later to prove true, but at that time few people could accept it .

A. put out   B. put together    C. put aside     D. put forward

高二英语单项填空中等难度题查看答案及解析

For the soldiers, the true technological hero may be the body armor (盔甲).

Capable of stopping most bullets, the body armor worn by all of the troops is being trusted for saving many lives. Soldiers shot at close range are walking away with no more than broken ribs (肋骨).

While the newest smart bombs get more attention, improvements in soldiers’ armor are improving safety on the battlefield. The new body armor in particular, may help reduce deaths in the firefights.

In addition to the lighter and more protective body armor, soldiers now wear more comfortable, stronger helmets.

“Everything they have is much better,” says Robert Kinney, director of individual protection at the Army’s Soldier Center in Natick, Mass. “It means an increase in their quality of life.”

The new equipment is a result of years of research and development at the lab.

The new body armor, named “the interceptor”, is similar to but stronger than ones worn by the police. It can also protect the neck. Two other plates are put into it and cover vital organs. As a result, far fewer deaths arrive at military hospitals with abdomen (腹部) or, chest wounds, says Air Force Maj. Mark Ervin, a surgeon at the Landstuhl Regional Medical Center in Germany. “That’s remarkable,” Maj. Ervin says.

Altogether it weighs 16 pounds, one-third lighter than the previous armor that protects only against shrapnel (弹片) but couldn’t stop bullets. The lighter weight is a welcome improvement for soldiers already carrying 100 to 120 pounds of gear.

Soldiers’ helmets have also been improved since the first Gulf War. They also offer more protection. They are capable of stopping handgun or small machine gun rounds, but not high-powered shots.

1.Why is the body armor regarded as a hero?

A.It’s able to stop all the bullets. B.It saves a hero soldier’s life.

C.It prevents rib injuries effectively. D.It reduces deaths among soldiers.

2.Which of the following best describes the new body armor?

A.Stronger. B.Heavier.

C.More expensive. D.More attractive.

3.What is the main idea of the text?

A.The new body armor is able to stop most bullets.

B.The new body armor has saved many lives on the battlefield.

C.Soldiers are equipped with improved body armors and helmets.

D.Helmets are as important as the body armor to soldiers.

高二英语阅读理解中等难度题查看答案及解析