The output of the gold mine is now four times it was before liberation. [ ]A. that B. what C. which D. than 题目和参考答案——青夏教育精英家教网—

题目内容

The output of the gold mine is now four times _____ it was before liberation.

[ ]

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

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Mr William Shakespeare and the Internet

Explanation of Contents

This is the fourth edition of these pages. It is hard to believe, but once again they are new and improved. My motive in publishing these pages remains to help and stimulate others in Shakespeare studies, and especially those who might contribute their work to the Internet. The spirit of altruism (利他主义) that originally built the Internet is not quite gone, though, sadly, through the pressure of time and profit has lessened.

A major new addition to the pages is a Shakespeare Timeline, which is an online biography mounted at this site. The problems with searching for Shakespeare resources using the available Search Engines are:

---- It is difficult to focus most searches so that you get a manageable number of relevant hits;

---- It is impossible by simply reading an abstract to make any distinction between the output of a Junior High School student and that of a professional researcher.

Another change in these pages over previous editions is the “What’s News” page. If you come away from these pages with the feeling that they are very useful but slightly pedantic (学究的), I will have realized my goal.

An Apology

I am continually apologizing to the many who have written me requesting revisions of the pages. We are all too busy. I simply have not had the time to dedicate to these pages that I wish. But I love the material and so have, at long last, made some time to update them.

A Reminder to Young Students

These pages contain the best links I can find to Shakespeare on the Internet. As a reminder, I would say I very much enjoy hearing from people who view and use these pages. If you want to do Shakespeare research using the web, this page is a great starting point, and I keep it as current as I can. The web is in its infancy in bringing good, scholarly content to students. Don’t forget the best, if not quickest, resources are still in your library.

57. The passage is written to ____.

A. introduce the fourth edition of these pages

B. make an apology to readers

C. show off these pages to readers

D. let Shakespeare researchers buy these pages

58. Which of the following is the new addition to the pages?

A. The writer’s apology.

B. Search Engines.

C. A Shakespeare Timeline.

D. Receiving readers’ e-mails.

59. When searching for Shakespeare resources using Search Engines, you ____.

A. will waste some time in finding what you want

B. can easily recognize what the abstract means

C. will often come into the “What’s News” pages

D. will find something special on your computers

60. Which of the following can best conclude the last paragraph?

A. The writer will often read letters from those who use these pages.

B. The writer of the passage is very selfish.

C. The web was just created four years ago.

D. Shakespeare researchers should first of all refer to these pages.

In the atmosphere , carbon dioxide acts rather like a one-way mirror or the glass in the roof of a greenhouse which allows the sun’s rays to enter but prevents the heat from escaping.

According to a weather expert’s prediction, the atmosphere will be 3 ℃ warmer in the year 2050 than it is today, if man continues to burn fuels at the present rate. If this warming up took place, the ice caps in the poles would begin to melt, thus raising sea level several meters and severely flooding coastal cities. Also, the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere(半球), possibly resulting in an alteration of the earth’s chief food growing zones.

In the past, concern about a man-made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a much thicker ice sheet. But the weather experts are now paying more attention to West Antarctic, which may be affected by only a few degrees of warming, in other words, by a warming on the scale that will possibly take place in the next fifty years from the burning of fuels.

Satellite pictures show that large areas of Antarctic ice are already disappearing. The evidence available suggests that a warming has taken place. This fits the theory that carbon dioxide warms the earth

However, most of the fuel is burnt in the northern hemisphere, where temperatures seem to be falling. Scientists conclude, therefore, that up to now natural influences on the weather have gone beyond those caused by man. The question is: Which natural cause has most effect on the weather?

One possibility is the variable behavior of the sun. Astronomers at one research station have studied the hot sports and ‘cold” spots( that is, the relatively less hot spots) on the sun. As the sun rotates(使旋转), every 27.5 days, it presents hotter or colder faces to the earth, and different aspects to different parts of the earth. This seems to have a considerable effect on the distribution of the earth’s atmospheric pressure, and consequently on wind circulation. The sun is also changeable over a long term: its heat output goes up and down in cycles, the latest trend being downward.

Scientists are now finding shared relations between models of solar weather interactions and the actual climate over many thousands of years, including the last Ice Age. The problem is that the models are predicting that the world should be entering a new Ice Age and it is hot. One way of solving this theoretical difficulty is to assume a delay of thousands of years while the solar effects overcome the inertia(惯性) of the earth’s climate. If this is right, the warming effect of carbon dioxide might thus be serving as a useful opposed balance to the sun’s fading heat.

It can be concluded that concentration of carbon dioxide in the atmosphere would ____.

A. mean a warming-up in the Arctic.

B. raise the temperature of the earth’s surface.

C. prevent the sun’s rays from reaching the earth’ s surface.

D. explain the cause of great changes in the climate in the northern hemisphere.

The article was written to explain____.

A. the greenhouse effect. B. the solar effects on the earth.

C. the causes affecting weather. D. the models of solar weather of solar weather interactions.

Although the fuel consumption is greater in the northern hemisphere, temperature there seems to be falling. This is ____.

A. mainly because the levels of carbon dioxide are rising

B. partly due to changes in the output of solar energy

C. possibly because the ice caps in the poles are melting

D. only due to the effect of the inertia of the earth’s climate

On the basis of their models, scientists are of the opinion that .

A. the climate of the world should be becoming cooler

B. the new Ice Age will be delayed by the greenhouse effect

C. the man-made warning effect helps to increase the solar effects

D. it will take thousands of years for the interia of the earth’s climate to take effect.

If the assumption about the delay of a new Ice Age is correct, ___.

A. ice would soon cover the northern hemisphere.

B. the greenhouse effect could work in favor of the earth.

C. the best way to overcome the cooling effect would be to burn more fuels.

D. the increased levels of carbon dioxide in the atmosphere could warm up the earth even more quickly.

Li Denghai, with his muddy boots and tanned(晒黑的) face, may not look like he is one of China’s famous agricultural pioneers. But the 61-year-old man from Shandong Province has made scientific breakthroughs(突破), which made great contributions to China’s food security(安全). His main work has been in achieving the higher output of corn production.
Li, who holds the world record for the highest output of summer corn, once says, “Corn has a life; it sings and dances. If you listen clearly, it can speak to you.” He started his research in 1969 when he was 20 and just dropped out of a high school. He then read an article which pointed that corn output per mu in the USA was six times higher than that in China. He was shocked and set out to work on just a small piece of land round the clock to see if he could increase the output. He often went to the field with a flashlight late at night, if he had been away during the day. By careful nurturing (照料) he managed to double the output.
Li Denghai was awarded the “China Award for Significant Contribution to the Maize (玉米) Industry” in 2005, and the same year the company named after his own name came into the market on the Shenzhen Stock Exchange. Li, however, is never happier than when he is in the middle of his cornfields. “I can forget my tiredness when talking to my corns,” he says.
【小题1】When Li Denghai began the study of corn, .

A．he just graduated from an ordinary high school

B．he was shocked that the corn output in China was so low

C．he was only in his thirties

D．he wasn’t really fond of his work

【小题2】The underlined phrase “round the clock” means .

【小题3】From Mr. Li’s words in this passage, we can learn that .

A．he is not good at communicating with people

B．he is too tired to go to the corn fields

C．he talks to his corn when feeling lonely

D．he loves his career deeply

Extract（摘要）1
A computer is an "information processor".It is given information,called "data",instructed to do certain things and then show us the results.The data put into the computer is called the"input" and the results which come out are the "output".Some people say the circle of large standing stones at Stonechenge is a kind of computer.Prehistory people worked out their calendar（日历）from the position of the shadows made by the sun shining on the stones.
Extract 2
Teach yourself new subjects and skills at your own pace with a home computer.Use it to help with schoolwork,for self-improvement,even to improve your career skills.Learn touchtyping. Foreign languages or computer programming.A home computer can help children of all ages learn classroom subjects such as spelling,geography and others.In fact it makes learning fun.So if you want to teach yourself,or help your children teach themselves-get a home computer.It can also help you manage your personal finances or help you to work taxes and plan household budgets.You can make business a pleasure with a home computer.
【小题1】The writer introduces the words such as "input" and "output" in order to_____.

A．introduce people to computer language

B．show computer language is the same as English

C．help people some scientific language

D．give people some scientific language

【小题2】Why does the writer talk about Stonechenge in Extract 1?

A．To give an example of the very first computer.

B．To show that computers are older than mankind.

C．To tell the difference between the past and the present.

D．To give another way of explaining computers.

【小题3】If you think of the circle of large standing stones as a computer,_____.

A．the shadow is the input and the position is the output

B．the sunlight is the input and the calendar is the output

C．the position is the input and the sunlight is the output

D．the calendar is the input and the shadow is the output

【小题4】Extract 2 is probably taken from_____.

A．a computer textbook	B．a company's advertisement
C．a teach-yourself computer book	D．a children's guide to computers

As people slowly learn to cure diseases, control floods, prevent hunger, and stop wars, fewer people die every year. As a result, the population of the world is becoming larger. In 1925 there were about 2 billion people in the world; today there are over 6 billion.

When the number rises, extra mouths must be fed. New lands must be brought under development, or land already farmed must be made to produce more crops. In some areas the land is so over-developed that it will be difficult to make it provide more crops. In some areas the population is so large that the land is divided into too tiny units to make improvement possible with farming methods. If a large part of this farming population went into industrial work, the land might be farmed much more productively (多产地) with modern methods.

There is now a race for science, technology, and industry to keep the output of food rising faster than the number of people to be fed. New types of crops, which will grow well in bad weather, are being developed, so there are now farms beyond the Arctic Circle in Siberia and North America. Irrigation (灌溉) and dry-farming methods bring poor lands under the plough. Dams hold back the waters of great rivers, which can provide water for the fields in all seasons and provide electric power for new industries. Industrial chemistry provides fertilizer to suit different soils. Every year, some new methods are made to increase or to protect the food of the world.

1. The author says that the world population is increasing because _____.

A. there are many rich valleys and large fields

B. farmers are producing more crops than before

C. people are living longer due to better living conditions

D. new lands are being made into farmlands

2. The author says that in areas with large populations, land might be more productively farmed if _____.

A. the land was divided into smaller pieces

B. people moved into the countryside

C. industrial methods were used in farming

D. the units of land were much larger

3. We are told that there are now farms beyond the Arctic Circle. This has been made possible by _____.

A. growing new types of crops

B. irrigation and dry-farming means

C. providing fertilizers

D. destroying pests and diseases

4. Why is the land divided into tiny units in some areas?

A. There are too many people living there.

B. It saves more natural resources there.

C. It prevents crops from serious diseases there.

D. Farmers can grow various kinds of crops there.

5. Why do some people use dams to hold back waters from great rivers?

A. To develop a new kind of dry-farming methods.

B. To prevent crops from floods.

C. To provide water and electricity in all seasons.

D. To water poor lands in bad weather.

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