has already been pointed out, only by correcting mistakes, can you make progress. A．It B．As C．That D．What 题目和参考答案——青夏教育精英家教网—

题目内容

______ has already been pointed out, only by correcting mistakes, can you make progress.

A．It B．As C．That D．What

解析:

关系代词as引导定语从句时，通常用于固定搭配。

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初中学业水平考试历史与社会思想品德精讲精练系列答案

相关题目

Be Brave With New Things

The old advertising slogan, “so simple a child can do it ,” has taken on new meaning to me. A few weeks ago I got a computer, but I an mechanically illiterate. I knew that children had no fear of the future, so that seemed a good place to seek help. I asked my nephew, twelve years old, at an elementary school, to help me.

My nephew took the machine for granted and has simply accepted the fact that computers are now a way of life. He plays with them and does his homework on them and even creates programs for them. I , on the other hand, are terrified by what this equipment can do. It can interchange paragraphs, switch words around and even correct my spelling. It informs me of Its limitations, takes commands and asks questions. It even seems to have a sense of communication. Rather than accusing me of making an error, it prints “One of us has made a mistake!” It never gets tired and is always patient and ready to go when I am.

I think it was somewhat normal for me to be suspicious of computers. They represent a break with some very familiar habits and traditions. It is only human to instinctively avoid anything that shifts thoroughly from the acceptable, comfortable past. But the world is governed by ceaseless change and we must therefore establish links with the present and future as well as the past. Computer technology is an excellent case in point, as the newest systems grow out of date in only a few years, or even months.

This ability to see, experience and accept the new is one of our saving characteristics. To be fearful of tomorrow, to close ourselves to possibilities, to resist the inevitable, to advocate standing still when all else is moving forward, is to lose touch. If we accept the new with joy and wonder, we can move gracefully into each tomorrow. More often than not, the children shall lead us.

6．What is the new meaning of “So simple a child can do it” for the author?

A．computers are so easy to operate that even a child can play them well

B．A child can always do more complex things than an adult.

C．It is easier for a child to accept new things than for an adult.

D．A child has greater ability than an adult in operating computers.

7．According to the second paragraph, which of the following statements is true?

A．The nephew thought it is natural to accept the fact that computers are now a way of life.

B．The nephew believed that machines were made for people to do whatever they wanted.

C．computers are not only used to communicate, but also to remove their limitations.

D．It is a fact that both adults and children have accepted computers as a way of life.

8．Which of the following doesn’t the author’s computer do ?

A．It asks the author if she has made a mistake.

B．It accuses the author of making mistakes.

C．It corrects the author’s spelling mistakes.

D．It informs the author of her mistakes.

9．According to the third paragraph, it is human nature that we resist those things which

A．only represent the comfortable and acceptable past

B．change thoroughly into the comfortable and acceptable past

C．make people stand still when all else is moving forward

D．change completely from the acceptable and comfortable past

10．How do you understand the underlined sentence in the text?

　　A. It is always ready to inform me when I am ready to go.

　　B. It is always ready to start working when I am ready for work.

　　C. When I am ready to go, it is patient to wait.

　　D. When I am ready to go, it has already gone.

In July 1994 Jupiter, the largest planet in our solar system, was struck by 21 pieces of comet(彗星).When the fragments(碎片)landed in the southern part of the giant planet, the explosions were watched by scientist here on earth. But what if our own planet was hit by a comet?

The year is 2094. It has been announced that a comet is heading towards the earth. Most of it will miss our planet, but two fragments will probably hit the southern part of the earth. The news has caused panic.

On 17 July, a fragment four kilometers wide enters the earth’s atmosphere with a huge explosion. About half of the fragment is destroyed. But the major part survives and hits the South Atlantic at 200 times the speed of sound. The sea boils and an enormous wave is created and spreads. The wall of water rushes towards southern Africa at 800 kilometers an hour. Cities on the African coast are totally destroyed and millions of people are drowned. The waves moves into the Indian Ocean and heads towards Asia.

Millions of people are already dead in the southern part of the earth, but the north won’t escape for long. Tons of broken pieces are thrown into the atmosphere by the explosions. As the sun is hidden by clouds of dust, temperatures around the world fall to almost zero. Crops are ruined. Wars break out as countries fight for food. A year later civilization has collapsed. No more than 10 million people have survived.

Could it really happen? In fact, it has already happened more than once in the history of the earth. The dinosaurs(恐龙)were on the earth for over 160 million years. Then 65 million years ago they suddenly disappeared. Many scientists believed that the earth was hit by a space fragment. The dinosaurs couldn’t survive in the cold climate that followed and they became extinct. Will we meet the same end?

1. Which of the following in NOT true according to the author’s description of the disaster in 2094?

A. The whole world becomes extremely cold.

B. All the coastal cities in Africa are destroyed.

C. The whole mankind becomes extinct.

D. The visit of the comet results in war.

2. Why does the author mention dinosaur at the end of the passage?

A. Because they could only live in the warm climate.

B. Because they once dominated the earth.

C. Because their extinction indicates future disasters.

D. Because dinosaurs and humans never live in the same age

3. In writing the passage, the author intends to ____.

A. give an accurate description of the possible disaster in the future

B. prove that humans will sooner or later be destroyed

C. tell the historical development of the earth

D. warn of a possible disaster in the future

4. It can be concluded that the passage is most probably part of a(n) ____.

A. horror story B. news report

C. research paper D. article of popular science

Liu Kai is my classmate. He is a good student and always ready to help the others. One day on his way school, he saw a little girl crosses the road. A car was coming towards to her quickly and the girl was so frightened to move. The car near hit her. Just then Liu Kai rushed up to her and caught her on the arm. The little girl was saved. She tells him where she lived, but he took her home. When Liu Kai hurried into the classroom, the teacher has already begun his lessons. He told the teacher why he was late. He was then praised for which he had done.

Because of the lack of funds, the tunnel project has already fallen behind ________.

A. situation B. speed C. insurance D. schedule

Salt plays an important role in our daily diet. Even a small reduction in salt in the diet can be a big help to the heart. A new study used a computer model to predict -how just three grams less a day would affect heart disease in the United States.

The result: Thirteen percent fewer heart attacks. Eight percent fewer strokes. Four percent fewer deaths. Eleven percent fewer new cases of heart disease. And two hundred forty billion dollars in health care savings. Researchers found it could prevent one hundred thousand heart attacks and ninety-two thousand deaths every year．

The study is in the New England Journal of Medicine. Kirsten Bibbins-Domingo at the University of California San Francisco was the lead author. She says people would not even notice a difference in taste with three grams,or one-half teaspoon, less salt per day. The team also included researchers at Stanford and Columbia University. Each gram of salt contains four hundred milligrams of sodiu(钠), which is how foods may list their salt content．

The government says the average American man eats ten grams of salt a day. The American Heart Association advises no more than three grams for healthy people. It says salt in the American diet has increased fifty percent since the nineteen seventies, while blood pressures have also risen. Less salt can mean a lower blood pressure.

New York City Mayor Michael Bloomberg is leading an effort called the National Salt Reduction Initiative.The idea is to put pressure on food companies and restaurants. Critics call it government interference.

Mayor Bloomberg has already succeeded in other areas, like requiring fast food places in the city to list calorie information. Now a study by the Seattle Children's Research Institute shows that the calorie information on the menu can influence what parents order for their children. Ninety-nine parents of three to six year olds took part. Half had calories between the two groups for foods that the parents would have chosen for themselves. McDonald's menus clearly showing how many calories were in each food. Parents given the counts chose an average of one hundred two fewer calories when asked what they would order for their children. Yet there was no difference in calories between the two groups for foods that the parents would have chosen for themselves.

Study leader Pooja Tandon says even small calorie reductions on a regular basis can prevent weight gain over time.The study was published in the journal Pediatrics．

1.Which of the following benefits does less salt diet in the passage NOT cover?

A．The decrease of strokes B．The prevention of weight gain

C．Fewer heart attacks D．The drop in medical care cost

2.It can be inferred from the passage that _______.

A．Americans ate no more than 5 grams of salt per day in the 1970s

B．the American Heart Association suggests less than 3 grams of salt a day for everyone

C．the less salt one eats, the healthier he will be

D．all the heart diseases result from eating too much salt

3.The National Salt Reduction Initiative aims to_______.

A．inform people of the harm that salt does to health

B．attract the public attention to the problem

C．require fast food places to list salt information

D．put pressure on food companies and restaurants

4.The underlined sentence "Yet there was no difference in calories between the two groups for foods that the parents would have chosen for themselves." implies that _______.

A．Parents pay less attention to the amount of calories in their diet.

B．Parents set a good example to their children in daily diet.

C．Parents take less salt than before while taking meals.

D．Most parents are on a diet for their health.

5.Which of the following might be the best title for this passage?

A．Relationship between Salt and Health

B．Less Salt Can Mean Being More Healthy

C．A Survey on People's Regular Diet

D．Mayor Michael Bloomberg and His Health Project

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