An oasis (绿洲) is an island of life in an ocean of temperature extremes.Any oasis always contains one or more springs Oases make it possible to survive through the desert.In large deserts such as the Sahara.towns are located around sources of water such as oases and rivers.
What causes an oasis? An oasis is actually a spot in the desert where the altitude is low enough that the water table is fight below the surface,resulting in the presence of springs.Even in a desert, it rains occasionally,and this produces a water table just above the bedrock,usually several hundred feet below the surface.Sand is very porous (可渗透的),so most water runs right
through it and down to the bedrock.
Deserts consist of many millions of tons of sand.There is only one natural force capable of moving it in noticeable amounts:the wind.Although,in an average dust storm,ten cubic feet of air only holds about an ounce of sand,a cubic mile of air can move about 4,600 tons of it,leading to erosion (侵蚀).A severe storm is capable of moving as much as 100 million tons of sand and dust.
In certain areas where large quantities of sand are moved by storms,erosion digs all the way down to the water table,putting it just beneath the surface Seeds planted in the ground there are capable of extending roots into the moist land,producing an oasis.
Sometimes.the oasis produced by the wind can be very large when vast tracts of desert are wiped clean by storms.The great Kharga oasis in the Sahara,for example,is over 100 miles long and 12 to 50 miles in width. The oasis was produced when erosion caused the edges of the hollow places to sink down to the water table.
63.What does “it” in Paragraph 4 refer to_______.
A.erosion B.water table C.sand D.storm
64.How many conditions of the oasis formation are mentioned in the passage without considering
The wind and seeds?
A.3 B.4 C.5 D.6
65.We can infer from the passage ________.
A.there is at least one spring on an oasis
B.the bedrock is usually just right below the surface
C.the great Kharga oasis is the biggest oasis in the world
D.the great Kharga oasis is at a low altitude
66.In the last paragraph,the author mentions the great Kharga oasis as an example to_______.
A.introduce the great oasis to the readers
B.tell how the oasis was produced by rain
C.show the oasis produced by the wind can be very large
D.tell it’s easy to form oases in the desert after storms
High school students are some of the busiest people in the world. To get the most from all you do, you must be in control of your time. Otherwise decision that affect how well you play the game, what position you play and when you get to play will be decided for you. Your success in high school depends on your use of time. Here are some important things to remember.
·Begin each term by filling in a master plan. First fill in things you must do (classes, work, practice, etc. that you can’t change.) Then find the most effective use for these times.
·Set a regular time and place for study. This will save your time in the long run. If you have a study hall in your school, use it!
·Use daylight hours to study whenever possible. For most people for every hour of study done in daylight hours, it will take them one and a half hours to do the same task at night.
·Take breaks. Don’t plan marathon study time. Have a short rest before you study again.
·By using flash cards or summary sheets, you can use odd times to study while you’re waiting for class to start or for a friend to pick you up.
·If possible, plan study time with a partner. Choose your partner wisely however. Make sure you study, not socialize.
·Do the most difficult tasks for times when you are active. (For example, when you’re energetic, it will become easier to solve maths questions; when you’re tired, it will be impossible!)
·Make a daily checklist. Do the most important tasks first.According to the passage, your success in high school mainly lies in _________.
A.making full use of your time | B.your hard work |
C.your brainpower | D.how well you play the game |
We should use daylight hours to study whenever possible because __________.
A.school study halls are open to students only in the daytime |
B.most people can spare more time to study in the daytime |
C.it’s more difficult to study effectively at night |
D.we have more important things to do than study at night |
On how to use our time, we should follow the following suggestions EXCEPT _______.
A.working out a complete plan for the whole term |
B.keeping a good balance between study and rest |
C.putting the most important tasks first |
D.trying to study alone instead of working with others |
V Reading
Ellas’ story
My name is Ellas .I am a poor black worker in South Africa .The time when I first met Nelson Mandela was a very difficult period of my life .I was twelve years old . It was in 1952 and he had opened a black law firm to advise black poor people on their problems .
I began school at six . The school where I studied only two years was three kilometers away. I had to leave, because my family could not continue to pay the school fees and the bus fare .I could not read or write. After trying hard ,I got a job in a gold mine, This was a time when one had got to have a passbook to live in Johannesburg. Sadly I did not have this passbook because I was not born there and I was worried about whether I would be out of work.
The day when Nelson Mandela told me what to do and helped me was one of the happiest days of my life .He told me how to get the correct papers so I could stay in Johannesburg .I never forgot how kind he was and when he organized the ANC Youth League ,I joined it as soon as I could .He said:
“The last thirty years have seen the greatest number of laws stopping our rights and progress, until today we have reached a stage where we have almost no rights at all.”
It was the truth .Black people has no vote and could not choose who ruled them .The parts of town where they lived were places decided by white people .They could not get jobs they wanted .The places there they were sent to live were the poorest areas in South Africa .No one could grow food there .In fact as Nelson Mandela said:
“…we were put in a position in which we had either to accept we were less important ,or fight the Government .We chose to attack the law .We first broke the law in a way which was peaceful ;when this was not allowed… only then did we decide to answer violence with violence.”
As a matter of fact, I do not like violence… but in 1963 I helped him blow up some government buildings .It was very dangerous because if I was caught I could be put in prison for years .But I was happy to help because I knew it was to realize our dream of making black and white people equal.
1 Read the text and answer the following questions.
1) When and where was the writer born?
2) What difficulty did he meet when he worked in a gold mine in Johannesburg?
3 )why did Mandela organize the ANC Youth League?
4 )What position were the black in and what did they do
A volcanic eruption in Iceland has sent ash across northern Europe. Airlines have stopped or changed the flights across the Atlantic Ocean, leaving airport hundreds of passengers stuck in airport.
Grimsvotn is one of the largest and most active volcanoes in Europe. What makes Grimsvotn different is that it lies under a huge glacier(冰川) of ice up to 12 meters thick. The hot volcano heats up the ice above it, which then forms a layer of water between the glacier and the volcano. This layer of water puts pressure on the volcano, keeping it stable. As the water flows out from under the glacier, the pressure lifts. The lava(岩浆) from the volcano then comes up to the surface. This is exactly what happened today.
Now, airlines have to make changes to their flights so as not to fly through the clouds of volcanic ash. According to KLM, one of Europe’s biggest airlines, airplanes cannot go under the cloud or cover it. Going through the cloud can result in as getting stuck in the airplane’s engines, causing damage to the plane.
The eruption has also caused problems for animals in Iceland. The volcano left ash and sharp, glass-like rocks all over the countryside. Farmers are keeping their animals inside to stop them from eating ash-covered grass or the sharp object.
72. What makes Grimsvotn different from other volcano?
A.It is below ice. B. It lies under the sea.
C. It is the largest volcano D. It is lava affects the airlines.
73. What keeps Grimsvotn still?
A. The slow flow of water B. The low water temperature.
C. The thick glacier D. The water pressure.
74. Which of the following is the result of the volcanic eruption?
A. People stop traveling in Europe.
B. Airlines suffer from the loss of planes.
C. It becomes dangerous for animals to eat outside.
D. Farmers have lost many of their animals.
75. This text is most probably taken from _________.
A. a research paper B. a newspaper report
C. a class presentation D. a geography textbook.
Sports can help you keep fit and get in touch with nature. However, whether you
you are on the mountains, in the waves, or on the grassland, you should be aware that your sport of choice might have great influence on the environment.
Some sports are resource-hungry. Golf, as you may know, eats up not only large areas of countryside, but also tons of water. Besides, all sort of chemicals and huge amounts of energy are used to keep its courses in good condition. This causes major environmental effects. For example, in the dry regions of Portugal and Spain, golf is often held responsible for serious water shortage in some local areas.
There are many environment-friendly sports. Power walking is one of them that you could take up today. You don’t need any special equipment except a good pair of shoes; and you don’t have to worry about resources and your purse.. Simple and free, power walking can also keep you fit. If you walk regularly, it will be good for your heart and bones. Experts say that 20 minutes of power walking daily can make you feel less anxious, sleep well and have better control.
Whatever sport you take up, you can make it greener by using environment-friendly equipment and buying products made from recycled materials. But the final goal should be “green gyms”. They are better replacements for traditional health clubs and modern sports centres. Members of green gyms play sports outdoors, in the countryside or other open spaces. There is no special requirement for you to start your membership. And best of all, it’s free.
68. Which of the following is the author mostly probably in favour of(支持)?
A. Cycling around a lake B. Motor racing in the desert
C. Playing basketball in a gym. D. Swimming in a sports center.
69. What do we know about golf from the passage?
A. It is popular in Portugal and Spain
B. It causes water shortages around the world.
C.It pollutes the earth with chemicals and waste
D. It needs water and electricity to keep its courses green.
70. The author uses power walking as an example mainly because____.
A. it is an outdoor sport B. it improves our health
C. it uses fewer resources D. it is recommended by experts.
71. The author writes the passage to _________.
A. show us the function of major sports.
B. encourage us to go in for green sports.
C. discuss the major influence of popular sports.
D. introduce different types of environment-friendly sports.
Now, it’s time for some brief news item.
1.China wins women’s 3,000m short track relays, S. Korea disqualified
VANCOUVER,Feb.24 2010(Xinhua)—Twice Olympic champion Wang Meng led the Chinese short track speed skating team to the top podium of women’s 3,000m relay with a world record at the Vancouver Winter Games here on Wednesday, as South Korea was later disqualified. Canada took the silver, with the United States picking up the bronze. South Korean’s skaters had already started waving flags in joy after crossing the line but later the judges decided Kim Ming-jung had impeded(阻碍) during an exchange push.
2. Severe drought cracks Airport’s runway
KUNMING, March, 18 2010 (China Daily)—Severe drought continues to plague southwestern China’s Yunnan Province.
In the provincial capital Kunming, the surface of Wu Jiaba International Airport’ sonly runway has been fractured(断裂). Repairs have been going on since Tuesday. The airport is closed every day from midnight to seven-thirty in the morning. Airport authorities say the severe drought is the cause of the damage. The airport also needs to repair its plane taxing and parking area. Chen Zhiwei, Security Dept., Kunming International Airport, said, “The drought has greatly lowered the underground water level. And this has affected the runway foundations. The damage to its surface is severe.”
3. School Soldiers
Russian school students will have to do basic military training in their final year of school, the government has decided. The lesson will include learning to fire guns, marching drills and how to deal with a chemical, nuclear or biological attack. The activity is seen as part of a drive toward education of their love for their country.
4.
Is it hard for you to get up early and get ready for classes? Some students at Winter Park High School just roll out of bed in their pajamas(睡衣) and go to class in their own bedrooms. Of course, their teachers and classmates do not see them because all their class work is on the computer. The Florida High School, the state’s only online program take classes in algebra, American government, chemistry, computer, economics, and web-page design. They also have to go to regular school to attend other classes.
64. Which country ranks fourth in the women’s 3,000m short track relay according to the first news?
A. S. Korea B. Canada C. The USA. D. Not know
65. Which of the following is correct according to the second news?
A. The airport has been closed since Tuesday
B. Drought caused the trouble for repairs.
C. The underground water level became lower, and that’s why the Airport’s runway cracked.
D. Flights were not really stopped during the day, because Wu Jiaba International Airport had another runway.
66. Why will Russian school students have basic military training?
A. To get ready for a military parade. B. To learn to protect themselves.
C. To gain some military knowledge
D. To develop their love for their country.
67. The news from Florida can be given in a title “__________”.
A. Get up Late B. Online School
C. The special pajamas D. The popular subjects