Basic Math introduces students to the basic things of mathematics, as well as some easy methods of learning it. These 30 fantastic courses are designed to provide students with understanding of arithmetic and to prepare them for Algebra (代数) and beyond.
The lessons in Basic Math cover every basic field of arithmetic. They also look into exponents (指数), the order of operations, and square roots. In addition to that, students also discover how a particular mathematical topic relates to other branches , and how they can be used practically.
Basic Math starts from easier concepts and gradually moves on to the more troublesome ones. The lectures offer students the chance to understand of mathematical knowledge that may have seemed so frightening. They also help students prepare for college mathematics and develop confidence in this amazing field of study.
With the help of these lectures, they will be able to clear away the mystery (神秘性) of mathematics and face their studies with more confidence than they ever imagined. Besides, they will strengthen their ability to accept new and exciting mathematical challenges.
Professor H. Siegel, honored by Kentucky Educational Television as "the best math teacher in America, " is a devoted teacher and has a gift for explaining mathematical concepts in clear and interesting ways. From the basic ideas to the more difficult problems, he is a master in making math lectures learner-friendlier and less frightening
With a PhD in Mathematics Education form Georgia State University, Dr. Siegel now teaches mathematics at Central Arizona College.
If the course fails to provide complete satisfaction to you, you can easily exchange it for any other course that we offer. Or you can get your money back.What does the course Basic Math mainly cover?
| A．Algebra | B．College Mathematics |
| C．Arithmetic | D．Mathematics Education |
What good things can students expect from Basic Math?
| A．Stronger imagination ability. |
| B．Additional presentation skills. |
| C．More mathematical confidence. |
| D．Greater chances of becoming teachers. |
What can we learn about Professor H. Siegel?
| A．He is a lecturer at Kentucky Educational Television. |
| B．He is delivering 30 lectures in Basic Math. |
| C．He works in Georgia State University. |
| D．He specializes in training teachers. |
Where is the passage most likely to have been taken from?
| A．news report | B．A book review |
| C．A lesson plan | D．An advertisement |
阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
Goldie's Se
cret
She turned up at the doorstep of my house in Cornwall. No way could I have sent her away. No way, not me anyway. Maybe someone had kicked her out of their car the night before. "We're moving house.'; "No space for her any more with the baby coming." "We never really wanted her, but what could we have done? She was a present." People find all sorts of excuses for abandoning an animal. And she was one of the most beautiful dogs I had ever seen.
I called her Goldie. If I had known what was going to happen I would have given
her a more creative name. She was so unsettled during those first few days. She hardly ate anything and had such an air of sadness about her. There was nothing I could do to make her happy, it seemed. Heaven knows what had happened to her at her previous owner's. But eventually at the end of the first week she calmed down. Always by my side, whether we were out on one of our long walks or sitting by the fire.
That's why it was such a shock when she pulled away from me one day when we were out for a walk. We were a long way from home, when she started barking and getting very restless. Eventually I couldn't hold her any longer and she raced off down the road towards a farmhouse in the distance as fast as she could.
By the time I reached the farm I was very tired and upset with Goldie. But when I saw her licking (舔) the four puppies (幼犬) I started to feel sympathy towards them. "We didn't know what had happened to her," said the woman at the door. "I took her for a walk one day, soon after the puppies were born, and she just disappeared." "She must have tried to come back to them and got lost," added a boy from behind her. '
I must admit I do miss Goldie, but I've got Nugget now, and she looks just like her mother. And I've learnt a good lesson: not to judge people.
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How did the author feel about Goldie when Goldie came to the house?
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In her first few days at the
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Goldie rushed off to a farmhouse one day because she.
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| 4． |
The passage is organized in order of.
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The need to feed a growing population is putting much pressure on the world’s supply of water. With 97% of the world’s water too salty to be drunk or used in agriculture, the worldwide supply of water needs careful management, especially in agriculture. Although the idea of a water shortage（短缺）seems strange to someone fortunate enough to live in a high rainfull country, many of the world’s agricultural industries experience constant water shortages.
Although dams can be built to store water for agricultural use in dry areas and dry seaons, the costs of water redistribution(重新分配)are very high. Notonly is there the cost of the engineering itself, but there is also an environmental cost to be considered. Where valleys(山谷)are flooded to create dams, houses are lost and wildlife homes destroyed. Besides, water many flow easily through pipes to fields,but it cannot be transported from one side of the world to the other. Each country must therefore rely on the management of its own water to supply its farming requirements.
This is particularly troubling ro countries with agricultural industries in areas dependent on irrigation（灌溉）. In Texas, farmers’ overuse of irrigation water be resulted in a 25% redcution of the water stores. In the Central Valley area of south eastern USA, a huge water engineering project provided water for farming in dry vallege, but much of the water use has been poorly managed.
Saudi Arabia’s attempts to grow wheat in desert areas have been the pumping of huge quantities of irrigation water from underground reserves. Because there is no rainfall in these areas, such reserves can only decrease, and it is believed that fifty years of pumping will see them run dry.
1. From the first two paragraphs we learnt that _______.
A.much of the world’s water is available for use
B.people in high rainfll countries feel lucky
C.the costs of water redistribution should be considered
D.water can be easily carried through pipes across the world
2.Which of the following is true?
A.The water in Texas have been reduced by 75%.
B.Most industries in the world suffer from water shortagers.
C.The underground water in Saudi Arabia might run out in 50 years.
D.Good management of water use resulted from the project in the Central Valley.
3.What is most likely to be discussed in the paragreh that follows?
A.Steps to improving water use managet.
B.Ways tor redjuce the costs of builing dams.
C.Measured to dmal with worldwide water shortages.
D.Appmihes to handling the pressure on water supply.
4.The text is mainly about____________.
A.water supply and increasing population
B.water use management and agriculture
C.water redistribution and wildlife protection
D.water shornages and environmental protection.
My father was 44 and knew he wasn't going to male it to 45. He wrote me a letter and hoped that something in it would help me for the rest of my life.
Since the day 1 was 12 and first read his letter, some of his words have lived in mybeart. One it aways times out. "Right now, you are pretending to be a time-killer. But I know that one hay, you will do something great that will set you among the very best." Knowing that my dad believed in me gave me permission to believe in myself. "You will do something great." He didn't know what that would be, and neither did I, but at times in my life when I've felt proud of myself, I remember his words and wish he were here so I could ask. "Is this what you were talking about, Dad? Should I keep going?"
A long way frim 12 now, I realize hew would have been proud when I made any progress. Lately, thongn. I've come to believe he'd want me to move on to winat com next: to be nrood of and believe in, somebody else. It's time to start writing my own letters to my children. Our children look to us with the same unanswered question we had. Our kids don't hold back because they're afraid to fail. They're only afraid of failing us. They don't worry about being disappointed. Their fear－as mine was until my father's letter－is of being a disappointment.
Give your chikdren permission to succeed. They're witing for you to believe in them. I always knew way parents loved me. But trust my That elic will be more comlece, that love will be more real, and their belief in the nelces whi be greater if you write the words on their hearts; "Don't worry; you'll do something great." Not having that blessing from their parents may be the only thing holding them back.
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We learn from the text that the author.
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| 2． |
What does the author tell us in the 3rd passgiaph?
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Which of the following is true of the author?
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The main purpose of the text is to.
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Have you ever wondered?
1.Why do airplanes take longer to fly west than east?
It can take five hours to go west-east from New York(NY) to London but seven hours to travel east-west from London to NY. The reason for the difference is an atmospheric phenomenon know as the jet(喷射) stream. The jet stream is a very high altitude wind which always blows from the west to the east across the Atlantic. The planes movement a constams air speed thus go faster in the west-east direction when the air moving with the wind than in the opposite direction.
2 What would happen if the gravity on Earth was suddenly turned off?
Supposing we could magically turn off gravity. Would buildings and other structures float away? What happened would depend on how strongly the things were attached to the Earth. The Earth is moving at quite a speed moving at over a thousand miles per hour. If you turn something round your head on a string, it goes around in a circle until you let go of the strong go of the string. Things not attacked to the Earth would fly off in a straight line . People in buildings would suddenly shoot upwards at a great speed until they hit the ceiling. Most things would fly off into space.
| 1． |
What information coa we get from the first passage?
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| 2． |
The word"shoot"underlined in the 2nd passage probably means"".
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It can be interred that without gravity.
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Where can wemost probably read this text?
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American cities are similar to other cities around the world:In every country, cities reflect the values of the culture.American cities are changing, just as American society is changing.
After World War ?, the population of most large American cities decreased; however, the population in many Sun Belt cities increased.Los Angeles and Houston are cities where population shifts(转移)to and from the city reflects the changing values of American society.In the late 1940s and early 1950s,city residents(居民)became wealthier.They had more children so they needed more space.They moved out of their apartments in the city to buy their own homes.They bought houses in the suburbs(郊区)．
Now things are changing.The children of the people who left the cities in the 1950s are now adults.Many, unlike their parents, want to live in the cities.They continue to move to Sun Belt cities and older ones of the Northeast and Midwest.Many young professionals are movi
ng back into the city.They prefer the city to the suburbs because their jobs are there; or they just enjoy the excitement and possibilities that the city offers.
This population shift
is bringing problems as well as benefits.Countless poor people must leave their apartments in the city because the owners want to sell the buildings or mak
e apartments for sale instead of for rent.In the 1950s, many poor people did not have enough money to move to the suburbs; now many of these same people do not have enough money to stay in the cities.
Only a few years ago, people thought that the older American cities were dying.Some city residents now see a bright, new future.Others see only problems and conflicts.One thing is sure:many dying cities are alive again.
| 1． |
What does the author think of cities all over the world?
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Why did American city residents want to live in the suburbs after World War Ⅱ?
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According to the 4th paragraph, a great many poor people in American cities.
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| 4． |
We ear comude from the text that.
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author's house, Goldie.