Without electricity human life ______ quite difficult today.

A. is B. will be

C. would have been D. would be

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—Hello, is Mr Smith in?

—Sorry, there is no such person _______ you referred to in my office.

A. that B. as

C. who D. whom

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1.After the police arrested him, they went to the thief’s house to （追回）the stolen jewelry.

2.Some adverts about __________（環(huán)境）protection cater for our conscience or our desire to be respectable citizens.

3.Though he has retired, still he reads newspapers every day to keep himself i of the latest news.

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If you are hungry, what do you do? Have your favorite meal and stay quiet after that?_ 1. But it never lets you know, because, you keep it busy thinking about your friends or favorite stars．So it silently serves your needs and never lets itself grow．When mind loses its freedom to grow．creativity sets a full stop．This might be the reason why we all sometimes think "What happens next?", "Why can't I think?"

2. Why reading but not watching TV? It is because reading has been the most educative tool used by us right from childhood．Since it develops other aspects of our life, we have to take help from reading．

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E．Now what are you waiting for?

F．Hunger of the mind can be actually solved through wide reading．

G．Just like your stomach, your mind is also hungry．

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People in those days liked to believe in computers ________ the world.

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If you do not use your arms or your legs for some time, they become weak; when you start using them again, they slowly become strong again. Everybody knows this, and nobody would think of questioning this fact. 1. When someone says that he has a good memory, he really means that he keeps his memory in practice by exercising it regularly, either consciously or unconsciously. When someone else says that his memory is poor, he really means that he does not give it enough opportunity to become strong. 2. One of them exercises his arms and legs by playing tennis, while the other sits in a chair or a motor car all day.

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Have you ever noticed that people who cannot read or write usually have better memories than those who can? 4. It’s because those who cannot read or write have to remember things. They cannot write them down in a little notebook and they have to remember dates, time and prices, names, songs and stories, so their memory is being exercised the whole time 5. .

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C. Not all of us can become extremely strong or extremely clever.

D. So if you want a good memory, practice remembering.

E. Someone else says that he is poor in health.

F. Why is this?

G. The position is exactly the same as that of two people.

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You said you took away the dictionary without his permission. , you stole it.

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Every one of us gets so used to punctuation marks that not many of us give them a second thought． Actually, the ancient Greeks wrote this way． The lack of punctuation marks probably didn’t bother good readers, though． As they read, they just put pauses where they fit best． Also at this time, sentences switched directions． A sentence read from left to right． The next one read right to left, and then left to right again, etc． The ancient Romans sometimes punctuated like this: They put something that can separate words in a sentence． The word punctuation actually comes from this idea and the Latin word punctum, which means a dot.

When the 5th century arrived, there were just two punctuation marks: spaces and points． The spaces separated words while the points showed pauses in reading． Then in the 13th century, a printer named Aldus Manutius tried to standardize punctuation． He always used a period for a complete stop at the end of a sentence． He used a slash (/) to indicate a short pause． Over time, that slash was shortened and curled, and it became the modern comma (逗號).

Since that time, other marks have enlarged the punctuation family． The exclamation mark (感嘆號) comes from the Latin word io． It means “exclamation of joy.” The question mark originally started out as the Latin word questio, meaning question． Eventually, scholars put it at the end of a sentence to show a question.

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1.From the first paragraph, we can know that _______.

A． good readers had trouble reading without punctuation marks

B． a sentence always read from left to right in ancient Greece

C． ancient Greeks switched the direction of punctuation marks

D． the use of punctuation marks can date back to ancient times

2.The passage is developed _______.

A． by time B． by space

C． by comparison D． by importance

3.We can learn from the passage that _______.

A． ancient Romans didn’t use any punctuation marks

B． exclamation and question marks came from Latin

C． spaces and slashes were already used before the 5th century

D． Aldus Manutius first started to use commas

4.What can be concluded from the last paragraph?

A． The combination of two marks will not work.

B． It takes time for people to accept new punctuation marks.

C． Old punctuation marks need to be standardized.

D． Punctuation marks are still changing today.

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Preventing obesity (肥胖) and smoking can save lives, but it doesn’t save money, reported researchers. “It was a small surprise, for it is against the common belief,” said Pieter Van Baal, who led the study. “But it makes sense. If you live longer, then you cost the health system more.”

The researchers found that from age 20 to 56, obese people racked up (累計) the most expensive health costs. But on average, healthy people lived 84 years. Smokers lived about 77 years, and obese people lived about 80 years. Smokers and obese people tended to have more heart disease than healthy people. Therefore in the long run, the thin and healthy group cost about $417, 000, from age 20 on. Smokers cost about $326, 000 and obese people $371, 000.

“The result throws a bucket of cold water onto the idea, based on guesswork, that obesity is going to cost trillions of dollars,” said Patrick Basham, a professor of health politics. “If we’re going to worry about the future of obesity, we should stop worrying about its financial impact,” he said.

“The benefits of obesity prevention may not be seen immediately in terms of cost saving in tomorrow’s budget, but there are long-term gains,” said Van Baal. “These are often immeasurable when it comes to people living longer and healthier lives.” In the meanwhile, he said that governments should recognize that successful smoking and obesity prevention programs mean that people will have a longer chance of dying of something more expensive later in life.

“Lung cancer is a cheap disease to treat because people don’t survive very long. But if they are old enough to get Alzheimer’s (早老性癡呆癥) one day, they may survive longer and cost more. We are not advising that governments stop trying to prevent obesity,” Van Baal said. “But they should do it for the right reasons.”

1.Among middle-aged people, who may cost the health system most?

A. Those who are heavy smokers.

B. Those who are overweight.

C. Those who are too thin.

D. Those who are suffering from heart attacks.

2.What can we know about the belief that obesity costs much?

A. It turns out to be incorrect.

B. It comes from scientific study.

C. It is based on medical evidence.

D. It has changed over the past years.

3.According to the text, governments prevent obesity for the purpose of _______.

A. reducing the risks of suffering cancer

B. weakening obesity’s financial impact

C. making sure of people’s long and healthy life

D. reducing the money spent on medical programs

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

A. Recent Medical Study Shows Truth about Health

B. Preventing Obesity and Smoking May Cost More

C. Obesity and Smoking Lead to Expensive Diseases

D. Governments Change Attitude towards Obesity and Smoking

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