题目内容
Only by learning more about different cultures _______ avoid misunderstanding during international cooperation.
| A．we can | B．we should | C．should we | D．can we |
D
解析
轻松夺冠全能掌控卷系列答案Have you ever noticed the colour of the water in a river or stream after a heavy rainfall? What do you think caused this change in colour? It is soil that has been washed into the river from the riverbank or from t}le nearby fields．
Components of Soft
Soil is made up of a number of layers（层），each having its own distinctive colour and texture．The upper layer is known as the litter．It acts like a blanket．limiting temperature changes and reducing water loss．The topsoil layer is made up of small particles of rock mixed with rotten plant and animal matter called humus（腐殖质），which is black and gives the topsoil its dark colour．This layer is usually rich in nutrients，oxygen，and water．Below the topsoil is the subsoil，a layer that contains more stones mixed with only small amounts of organic matter．This layer is lighter in colour because of the lack of humus．Beneath the soil lies a layer of bedrock．
Soil forms from the bottom up．Over time bedrock is attacked by rain, wind，frost, and snow．It is gradually broken down into smaller particles in a process called weathering．Plants begin to grow，and rotten materials enrich the topsoil．Most of the soil in Eastern Canada．for example．Was formed from weathered rock that was exposed when the ice disappeared l2．000 years ag0．
Water Beneath the Soil
Surface water collects and flows above the ground in lakes．ponds．and rivers．Once in the soil or rock，it is called groundwater．Gravity pulls groundwater through the soil in a process called percolation（渗透）．Eventually the water reaches a layer called the water table．Under this is bedrock through which water cannot percolate．
As water percolates downward，it dissolves organic matter and minerals from the soil and carries them to deeper layers．This causes a serious problem because plants require these nutrients for growth.
Soil pH
Soil can be acidic．neutral．or basic．The pH of the soil is determined by the nature of the rock
from which it was formed．and by the nature of t}le plants that grow and rot in it．
The acidity of rain and snow can lower the pH of the groundwater that enters the soil．By burning fossil fuels such as coal，oil and gasoline，humans have been contributing to higher levels of acidity in many soils．When fossil fuels are burned．gases are released into the air and then fall back to earth as acid rain．Acid soil increases出e problem of carrying nutrients to lower soil levels．As nutrients are removed，soil is less fertile．Plants grow more slowly in acidic soil，and also become easily attacked by diseases．
【小题1】The layer of soil that provides necessary nutrients for plant growth is called．
| A．1itter | B．topsoil | C．humus | D．subsoil |
| A．Soil forms from weathered rock on the earth surface． |
| B．The deeper layer of soil is darker in colour than t}le surface soil． |
| C．Air pollution is partially responsible for acid soil． |
| D．Groundwater tends to carry away nutrients for plant growth． |
| A．between the topsoil layer and the subsoil layer |
| B．in the subsoil layer above bedrock |
| C．between the subsoil layer and bedrock |
| D．in the bedrock layer beneath the subsoil |
| A．rushed away into the river |
| B．cleaned and purified by water |
| C．destroyed and carried away by water |
| D．mixed with water and become part of it |
Weighed down by study? Pushed to the limit by the fast pace of life ? Frightened by the possible war ? Well, you’re not alone. Men and women in France are seeking relief using the world’s best medicine-----laughter.
In the past year, more than 15 laughter clubs have been set up across the country. People of all ages go to release their stress with an hour group laughs. “People telephoned me and said they have forgotten what it is to laugh. They want to find a place where they can escape all their problems for a while. So they come,” said 40—year—old Jocelyne Le Moan. She usually takes a class of around 60 people through a series of laughter techniques.
Her pupils range from teenagers to 70 years old, but most are middle---aged white collars seeking 60 minutes of relaxation at the end of a busy day. Le Moan takes them through the “Lion Laugh”and the “Laugh Contest”, where participants “speak”to each other in different ways. And instead of talking, they break into fits of laughter. At the end there are 15 minutes of “meditation”, when they lie on their backs and let the laughs burst out of their mouths.
“I love it. It’s an experience that has changed my life. Through it I rediscovered the child’s laugh inside me,”Said Romain Jouffroy, 24. “US President George W. Bush should give it a try. He has lost his laugh,”she joked . Like Jouffroy, many laughter club members find themselves changed into children again, and why not ? The average preschooler laughs up to 400 times a day.
The average adult only a day seven to 15.
The physical benefits of laughter are already well—recognized. Doctors say the act of laughing releases good chemicals into the blood—stream, while the quick breathing that accompanies it helps massage（按摩）the digestive organs and strengthens the heart.
“A full hour is like having your inside go jogging！One finishes out of breath, but feels revitalized（产生新活力. And on top of that , you’ve had a laugh,”said doctor Alexisd’ Estaing.And many participants in Paris also emphasize the psychological benefits. They believe that laughter is a way of making oneself feel more confident.
【小题1】Which of the following is not included among the benefits of laughing?
| A．It can make people rediscover their children’s laugh. |
| B．It can release good chemical into blood streams. |
| C．It can make you feel self—confident. |
| D．It can cure the illness of people. |
| A．take the world’s best medicine. |
| B．talk to each other about what troubles you. |
| C．learn series of laughter techniques. |
| D．have a good laugh after a busy day. |
| A．Jocelyne Le Moan is a teacher of the club. |
| B．the members are mostly middle---aged white collars. |
| C．people always need some way to relax in life. |
| D．laugh freely and everything goes well. |
| A．Those members feel too much pressure on them. |
| B．They want to find a place to relax themselves. |
| C．Laughters help massage the digestive organs. |
| D．The members don’t know how to laugh. |
Complete the passage by choosing the proper words in the box.
Each word can only be used once. Note that there is one word more than you need.
|
A．political |
B．supported |
C．gossip |
D．set E. contemporary |
F. literary G. alive H. significance I. enterprises J. figures
It is impossible to imagine Paris without its cafés. The city has some 12,000 cafés varying in size, grandeur, and 41 . The cafés are like an extension of the French living room, a place to start and end the day, to __42_ and debate.
When did the cafés in France start? The oldest café in Paris is Le Procope. It was opened in 1686 by Francesco Procopio dei Coltelli, the man who turned France into a coffee-drinking society. Le Procope attracted Paris’s political and 43 elite, and in this way played an important part among the upper class. By the end of the 18th century, all of Paris was intoxicated with （沉醉在）coffee and the city 44 some 700 cafés. These were like all-male clubs, with many functioning as centers of 45 life and discussion. By the 1840s the number of cafés had grown to 3,000. The men who gathered in these cafés and 46 the theme of the times included journalists, playwrights and writers. Around the turn of the 20th century, the sidewalk cafés became the meeting halls for artists and literary 47 .
Nowadays in Paris cafés still play the role of picture windows for observing 48 life. The artists gathered at the café may not be as great as those of the past, but faces worth watching are just the same. Linger a bit and you will see that the Parisian stereotypes are still_49 and well. You’ll see the old men in navy berets; ultra-thin, bronzed women with hair dyed bright orange; and schoolchildren sharing an afternoon chocolate with their mothers. The café in Paris has always been a place for seeing and being seen.