56. What benefits do these strategies have in common?

A. They all help reduce the use of energy like electricity.

B. They all cut down the amount of the paper.

C. They all result in producing less greenhouse gases.

D. They all help to preserve our trees and forest.

答案　 53---56 BBAC

Passage 54

(湖南省湘潭市外国语学校2010届高三第二次月考)

(C)

Scientists recently discovered that pictures on cave walls at Creswell Crags are the oldest known in Great Britain. But they didn’t find out in the usual way.

Archaeologists often date cave art with a process called radiocarbon dating. The technique can measure the age of carbon found in charcoal(木炭)drawings or painted pictures. Carbon is an element found in many things, including charcoal and even people. But in this case, there was no paint or charcoal to test. People carved the pictures of animals and figures into the rock using stone tools. The scientists had an “aha!” moment when they noticed small rocks stuck to the top of the drawings. The small rocks must have formed after the drawings were made.

“It is rare to be able to scientifically date rock art,” said Alistair Pike, an archaeological scientist at Britain’s University of Bristol. “We were very fortunate that some of the engravings were covered by stalagmites(石笋).

When a test proved that the stalagmites formed 12,800 years ago, the scientists knew the art underneath them had to be at least that old. And some of the animals shown, like the European bison, are now extinct--another tip-off that the art is quite old.

The artists came to Creswell Crags, This place is one of the farthest points north reached by our ancient ancestors during the Ice Age. At that time, much of the North Sea was dry, so people could move about more easily.

Some tools and bones found there are 13,000 to 15,000 years old. They show that the travelers hunted horses, reindeer, and arctic hare. Their artwork is similar to art in France and Germany. It tells scientists that the Creswell Crags artists must have had a close connection to peoples several thousand kilometers away－another important clue to understanding how humans spread out across the world.

55. Which strategies suggest recycling or reuse of things?

A. Strategies 1&3　　　 　　　　　　　　　　　　　　　　　　 B. Strategies 2&5

C. Strategies 3&6　　　 　　　　　　　　　　　　　　　　　　 D. Strategies 4&5.

54. According to the writer, what will happen if our PC is switched off when not in use?

A. It will help to save a large amount of money.

B. It will help to reduce a great deal of CO2.

C. It will save the amount of oil that runs your car for a mile

D. It will be like planting 1. 7 million acres of new trees.

53. What is the best title for the passage?

A. Ways to save money at home

B. Ways to be earth-friendly

C. Ways to end global-warming

D. Ways to limit carbon dioxide

49. The title of this passage could probably be_____

A. Let Us Teachers Stop Work　　　　　　　　　　　　　　 B. Let Us Make Children Learn

C. Let Children Correct Their Exercises　　　　　　 D. Let Children Learn by Themselves

答案　 CABD

Passage 53

(河北省邯郸市磁县2010届高三质量检测)

D

You can be proud of yourselves, even if you can only make one or two of these green changes. The goal here is to limit carbon dioxide and other greenhouse gases, which are closely associated to the big problem of global-warming.

Strategy 1: Bring your own cup to Starbucks

You’ll get a 10 cent discount, and it’s one less paper cup to end up in a landfill. While you’re there, pick up some free bags of spent coffee grounds to use as ‘‘green’’ fertilizer in your garden.

The payoff: The store won’t create more waste when they throw away a cup.

Strategy2: Turn off your computer

When in standby mode, your PC is still using energy. In fact, 75percent of electricity used in your home comes from electronics that are turned off.

The payoff: Turning off a monitor for 40 hours a week may only save $5 a month, but it reduces CO2 by 750 pounds

Strategy 3: Reuse plastic bags

Instead of throwing away 100 billion plastic bags a year, try and get a second, third, or tenth use out of them. Better yet, next time you shop, try a reusable bag.

The payoff: You’re reducing pollution. The amount of oil it would take to make just 14 plastic bags would run your car for one mile.

Strategy4: Use recycled paper in the bathroom

Most of the toilet paper we use is made from trees found in forests previously untouched by humans.

The payoff: If every household replaced one roll of toilet paper with a recycled one, 424000 trees would still be standing. Look for eco paper towels too.

Strategy5: Buy energy-efficient appliances(电器)

Replace the old fridge with an Energy Star appliance and you’ll use 15 percent less energy. It might be a little expensive to buy, but you’ll save money on your electricity bills and help the environment.

The payoff: If we all used one Energy Star appliance at home, it would be like planting 1. 7 million acres of new trees.

Strategy 6: Plant a tree

Adding green to your garden is beautiful and earth-pleasing.

The payoff: Just one tree will help make cleaner air and save the environment from 5000 pounds of hot carbon dioxide each year.

48. The passage suggests that learning to speak and learning to ride a bicycle are____

A. different from learning other skills　　　　　　　 B. the same as learning skills

C. more important than other skills　　　　　　　　　　　　　 D. not really important skills

47. According to the writer, teachers in school should _____

A. allow children to learn from each other

B. point out children’s mistakes whenever found

C. correct children’s mistakes as soon as possible

D. give children more book knowledge

46. Which of the following does the writer think teachers should NOT do?.

A. Give children correct answers　　　　　　　　　　　 B. Allow children to mark mistakes.

C. Point out children’s mistakes to them. 　　 D. Let children mark their own work

45. According to the passage, the best way for children to learn things is by_____.

A. listening to skilled people’s advice. 　　　　　　 B. asking older people many questions

C. making mistakes and having them corrected　　 D. doing what other people do

48. How many possible solutions to snoring have been proposed in the passage?

A. Two　　　　　　　　　　　　　　 B. Three　　　　　　　　　　　　 C. Four　　　　　　　　　　　　　　　 D. Five

答案　 45-48 CCAC

Passage 52

(贵州省回龙中学2010届高三10月月考)

B

Let children learn to judge their own work. A. child learning to talk does not learn by being corrected all the time; if corrected too much, he will stop talking. He notices a thousand times a day the difference between the language he uses and the language those around him use. Bit by bit, he makes the necessary changes to make his language like other people’s. In the same way, children learn to do all the other things without being taught to walk, run, climb, whistle, ride a bicycle…They compare their own performances with those of more skilled people, and slowly make the needed changes. But in school we never give a child a chance to find out his mistakes and correct them for himself. We do it all for him. We act as if we thought that he would never notice a mistake. If it is a matter in mathematics or science, give him the answer book. Let him correct his own papers. Why should we teachers waste time in such routine(日常的)work? Our job should be to help the child when he tells us that he can’t find the way to get the right answer. Let the children learn what all educated persons must some day learn, how to measure their own understanding, how to know what he does not know.