To tell the difference between a common issue and a rare variety, a collector needs . A. much knowledge of history B. more knowledge of history C. more knowledge than what appears on stamps D. techniques to use a magnifying glass B The temperature of the sun is over 5,000 degrees Fahrenheit at the surface, but it rises to perhaps more than 16 million degrees at the center. The sun is so much hotter than the earth that matter can exist only as a gas, except at the core, that is, the center. In the core of the sun, the pressures are so great against the gases that, in spite of the high temperature, there may be a small solid core. However, no one really knows, since the center of the sun can never be directly observed. Scientists do know that the sun is divided into five layers. Staring at the outside and going down into the sun, the layers are the corona, chromosphere, photosphere, convection zone, and finally the core. The first three layers are regarded as the sun’s atmosphere. But since the sun has no solid surface, it is hard to tell where the atmosphere ends and the body of the sun begins. The sun’s first layer from the outside begins about 10,000 miles above the visible surface and goes outward for millions of miles. This is the only part of the sun that can be seen during the eclipse such as the one in March, 1997. at any other time, the corona can be seen only when special parts are used on cameras and telescopes to shut out the burning light of the sun’s rays. The corona rays are made up of gases streaming outward at great speeds and reaching a temperature of more than 2 million degrees Fahrenheit. The rays of gas thin out as they reach the space around the planets. By the time the sun’s rays reach the earth, they are weak and invisible. 查看更多

 

题目列表(包括答案和解析)

D

Knowing the best way to study will help you to be a better student. By using your time properly, you can do your homework more quickly. Learning to study is not difficult.

The first thing to remember is that you must be willing to learn. It doesn’t mean that you must always like the subject. It does mean, however, that you must be willing to do whatever is necessary to learn. Try to understand why it is important and how it will help you now and later to do and learn other things. Knowing mathematics facts will be useful in your whole life.  Knowing how to spell makes any kind of writing easier. Sometimes subject that you think is going to be uninteresting will be exciting when you begin to work at it and understand it more clearly. Learning things can be fun if you are willing to work with them.

Here’s some advice for you: have a certain time each day and a quiet place with good lighting for study, so that you can concentrate on your study without interruptions(中断); have everything ready before you sit down to study, a dictionary, paper, a pen and books; be sure you understand what you should learn before you start; read carefully and pay special attention to the most important things; when memorizing, first find out the main parts and then recite the whole thing; check your homework after you finish it; never forget the importance of review and preview.

1.The main purpose of the article is______

A.to prove that learning is not difficult

B.to make the readers be interested in study

C.to tell the importance of self teaching

D.to tell the students how to study well

2. We learn things because______

A.our parents want us to learn

B.every student learns at school

C.we may use these things in the future

D.we like the subjects

3.Which of the following is NOT the advice given in the article?

A.To put a pen, paper and books beside you before study.

B.To study at any possible time and place.

C.To review and preview.

D.To pay attention to the most important things.

 

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The technology is great. Without it we wouldn’t have been able to put a man on the moon, explore the ocean’s depths or eat microwave sausages. Computers have revolutionized our lives and they have the power to educate and pass on knowledge. But sometimes this power can create more problems than it solves.
Every doctor has had to try their best to calm down patients who’ve come into their surgery waving an Internet print-out, convinced that they have some rare incurable disease, say, throat cancer. The truth is usually far more ordinary, though: they don’t have throat cancer, and it’s just that their throats are swollen. Being a graduate of the Internet “school” of medicine does not guarantee accurate self-health-checks.
One day Mrs. Almond came to my hospital after feeling faint at work. While I took her blood sample and tried to find out what was wrong, she said calmly, “I know what’s wrong;I’ve got throat cancer. I know there’s nothing you doctors can do about it and I’ve just got to wait until the day comes.”
As a matter of routine I ordered a chest X-ray. I looked at it and the blood results an hour later. Something wasn’t right. “Did your local doctor do an X-ray?” I asked. “Oh, I haven’t been to the doctor for years,” she replied. “I read about it on a website and the symptoms fitted, so I knew that’s what I had.”
However, some of her symptoms, like the severe cough and weight loss, didn’t fit with it—but she’d just ignored this.
I looked at the X-ray again, and more tests confirmed it wasn’t the cancer but tuberculosis (肺结核)—something that most certainly did need treating, and could be deadly. She was lucky we caught it when we did.
Mrs. Almond went pale when I explained she would have to be on treatment for the next six months to ensure that she was fully recovered. It was certainly a lesson for her. “I’m so embarrassed,” she said, shaking her head, as I explained that all the people she had come into close contact with would have to be found out and tested. She listed up to about 20, and then I went to my office to type up my notes. Unexpectedly, the computer was not working, so I had to wait until someone from the IT department came to fix it. Typical. Maybe I should have a microwave sausage while I waited?
【小题1】Mrs. Almond talked about her illness calmly because ______.

A.she thought she knew it well
B.she had purchased medicine online
C.she graduated from a medical school
D.she had been treated by local doctors
【小题2】It was lucky for Mrs. Almond ______.
A.to have contacted many friends
B.to have recovered in a short time
C.to have her assumption confirmed
D.to have her disease identified in time
【小题3】Mrs. Almond said “I’m so embarrassed” (Para. 7) because ______.
A.she had distrusted her close friends
B.she had caused unnecessary trouble
C.she had to refuse the doctor’s advice
D.she had to tell the truth to the doctor
【小题4】 By mentioning the breakdown of the computer, the author probably wants to prove ______.
A.it’s a must to take a break at work
B.it’s vital to believe in IT professionals
C.it’s unwise to simply rely on technology
D.it’s a danger to work long hours on computers

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Two traveling angels stopped to spend the night in the home of a wealthy family. The family was rude and refused to let the angels stay in the guest room. Instead the angels were given a space in the cold basement. As they made their bed on the hard floor, the older angel saw a hole in the wall and repaired it. When the younger angel asked why, the older angel replied: Things aren’t always what they seem.

The next night the pair came to rest at the house of a very poor, but very hospitable(好客的)farmer and his wife. After sharing what little food they had,the couple let the angels sleep in their bed where they could have a good night’s rest. When the sun came up the next morning,the angels found the farmer and his wife in tears. Their only cow, whose milk had been their only income, lay dead in the field.

The younger angel was very angry and asked the older angel, “How could this happen?” “Why did you not watch out for the cow? The first man had everything, yet you watched over his house,” she accused. “The second family had little but was willing to share everything, and you did not help.”

“Things aren’t always what they seem,” the older angel replied. “When we stayed in the basement,I noticed there was gold stored in that hole in the wall. Since the owner was so greedy and unwilling to share his good fortune,I asked God if I could seal(封口) the wall so he wouldn’t find it. Then last night as we slept in the farmer’s bed,the angel of death(死神) came for his wife. I asked God if the angel could take the cow instead. Things aren’t always what they seem.”

1.The underlined part “the pair” in the second paragraph two refers to     .

A. the poor couple         B. the rich couple           C. the angels           D. the guests

2.The younger angel was very angry because     .

A. the older angel killed the farmer’s cow           

B. the older angel treated the two families unfairly

C. the wealthy man gave them a bad place to live 

D. the angel of death took the cow away

3.Why did the older angel let the farmer’s cow die?

A. Because God wanted the older angel to take the cow.

B. Because she wanted to teach the younger angel a lesson.

C. Because she was sympathetic to the rich.

D. Because she wanted to save the farmer’s wife. 

4.The story tries to tell the reader that     .

A. sometimes things are not what they seem    

B. angels are always ready to help the poor

C. angels are always ready to help the rich 

D. the young should always learn from the old

 

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下面是对几部电视剧的介绍。阅读下面的简介和相关信息,并按要求匹配信息。
首先,请阅读下面的信息。
A. Bionic Woman
Wed, Sept. 26, 9PM on NBC
Jaime Sommers is an ordinary woman whose world turns upside down when she’s involved in a fatal car accident. Her scientist boyfriend uses his medical skills to save her life by giving her a bionic eye, ear, arm and legs. But in the process he transforms her life into one filled with danger, action and adventure.
B. Journeyman
Mon., Sept. 24, 10PM on NBC
Dan Vasser is a San Francisco newspaper reporter and family man who accidentally begins to travel through time. Along the way, he also must deal with the difficulties at work and home which were brought on by his sudden disappearances. However, his travels reunite him with his long-lost finance (未婚妻), which complicates his present-day life.
C. Life Is Wild
Sun., Oct. 7, 8:00PMon The CW
Teen Katie faces a culture clash when her dad and his new wife decide to move their family from Manhattan to South Africa .While Katie must learn to adapt to (适应)the new surroundings —a ropey lodge (破旧的山林小屋) in the middle of an animal preserve. The family must bond together in order to deal with the change.
D. Samantha Who?
Mon, Oct. 15, 9:30PM on ABC
Samantha wakes from a coma after eight days—with no memory of who she is or her former life. Slowly, she begins to learn she had a terrible relationship with her parents, treated her boyfriend badly and had no close friend; in general, she wasn’t a very nice person. It’s not easy for her to tell the difference between goodness and evil.
E. Big Shots
Thu, Sept. 27, 10PM on ABC
Four high-ranking executives who are at the top of their fields become friends in a club. These competitive but despairing New York CEOs take refuge in their friendship, discussing business, confiding secret, confiding secrets, seeking advice and supporting one another through life’s twists and turns. They desire to find the best ways to mix business with pleasure.
F. Criminal Minds
Thu, Sep.22, 9PM on CBS
A team of FBI experts(专家)analyze the country’s most twisted criminal minds, anticipating (估计)their next move before they strike again. Each member of the “mind hunter” team brings their own area of expertise on the table as they pinpoint (精确地找到, 准确地轰炸) predators’ motivations and identify(识别, 认明, 鉴定) their emotional triggers(起因) in order to stop them.
请阅读以下电视观众的信息,然后匹配相应的电视剧。
Frances, who married a foreign man two years ago, faces culture shock in the new family. She is not familiar with the new culture, which causes a few problems. She wants to see how other people adapt to the new surroundings.
Charles is a 16-year-old boy who is dreaming to become a detective. He once happened to watch a TV program which shows how to analyze criminal minds. Since then, he’s been collecting information about that.
Janet is always curious about how science changes people’s life. Besides, she is very interested in those stories about people who get supernatural power after some accidents.
Mr. Smith is a manager in a company, but still feels depressed. He finds nothing other than unhappiness in his job. It’s necessary for him to find balance between wording and living. He is eager to watch something about this.
Steven is a little boy whose mother always tells him stories about people traveling through time. Fascinated about such stories, he is eager to watch such teleplays.
观众                         电视剧
【小题1】Frances                    A. Bionic Woman
【小题2】Charles                    B. Journeyman
【小题3】Janet                      C. Life Is Wild
【小题4】Mr. Smith                  D. Samantha Who?
【小题5】Steven                    E. Big Shots
      F. Criminal Minds

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Why are people interested in eating raw foods or whole foods? One reason is that eating these types of food reduces the risk of acid accumulation in your body.
Raw and whole foods are usually digested more efficiently than cooked and refined foods. When we cook foods, we destroy the natural enzymes (酶) that are part of the food in its raw form. These enzymes were intended by nature to help us digest the food. When we consume food without these natural enzymes, our bodies either digest the food improperly or allow too many nutrients to be absorbed into the bloodstream. In both instances, the result is obesity. When too many nutrients are absorbed at once, the body grows fat. Improperly digested food moves slowly through the digestive tract, where it becomes increasingly acidic. To protect its vital organs from this acidic waste, the body changes the acid into fat and stores it safely away from the organs.
Processed foods contain chemical elements, which might confuse the appetite mechanism that tells us when we’ve had enough to eat; as a result, people often overeat. Processed foods also upset the digestive cycle. The body will either identify these foods as allergens and then store them safely away from the organs as fat, or the remains of undigested food will become acidic and enter the bloodstream as acid waste, which will stick to the blood vessel walls and block the passage of vital oxygen and nutrients heading for the body’s cells. The body’s metabolism (新陈代谢) becomes inactive, and the result is weight gain and obesity.
The accumulation of acid in the digestive tract makes digestion increasingly inefficient. When that happens, even healthy foods can become acidic and the food allergies will become more common.
To stop this vicious(恶性的) circle in its tracks, people need to consume food and supplements that will neutralize the acid already accumulated in body. Eating the right types of raw and whole foods can help. It’s also important to restore your enzyme balance. You need to identify and avoid the foods that cause acid accumulation and consume the foods that increase enzyme production. If you truly want to change and help your body heal itself, you need to take an active approach.
【小题1】It can be inferred from Para. 2 that __________.

A.it is essential for people to protect their vital organs
B.we’d better be cautious about raw and whole foods
C.foods with natural enzymes help people keep fit
D.giving up cooked and refined foods is a new lifestyle
【小题2】Processed foods are unhealthy because they __________.
A.destroy body’s cellsB.may lead to obesity
C.are difficult to digestD.stop body’s metabolism
【小题3】What is the main purpose of this passage?
A.To warn people of the problem of obesity.
B.To tell the differences between raw and processed foods.
C.To inform people of the harm of processed foods.
D.To advocate eating more raw and whole foods.
【小题4】What is likely to be talked about following the last paragraph?
A.Suitable types of raw and whole foods.
B.Different causes of acid accumulation
C.Correct ways to cook raw foods.
D.Active approaches to avoid acid.
【小题5】 What can we learn from the text?
A.Processed foods are good for our appetite mechanism.
B.Eating the right types of raw and whole foods does good to our body.
C.The accumulation of acid in the digestive tract makes digestion more effective.
D.Processed foods also comfort the digestive tract.

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