题目内容
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A conflict B confrontation C disturbance D disharmony
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Bacteria (细菌) are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are usually from two to four microns long, while rounded ones are generally one micron in diameter. Thus, if you enlarged a rounded bacterium a thousand times, it would be just about the size of a pinhead. An adult human magnified by the same amount would be over a mile (1.6 kilometers) tall.
Even with an ordinary microscope, you must look closely to see bacteria. Using a magnification of 100 times, one finds that bacteria are barely visible as tiny rods or dots. One cannot make out anything of their structure. Using special stains, one can see that some bacteria have attached to them wavy-looking "hairs" called flagella. Others have only one flagellum. The flagella rotate, pushing the bacteria through the water. Many bacteria lack flagella and cannot move about by their own power, while others can glide along over surfaces by some little-understood mechanism.
From the bacterial point of view the world is a very different place from what it is to humans.To a bacterium water is as thick as molasses (糖蜜) is to us. Bacteria are so small that they are influenced by the movements of the chemical molecules around them. Bacteria under the microscope even those with no flagella often bounce about in the water. This is because they collide with the water molecules and are pushed this way and that molecules move so rapidly that within a tenth of a second the molecules around a flagellum have been replaced by new ones. Even bacteria without flagella are thus constantly exposed to a changing environment.
Which of the following is the main topic of the passage？
A．The characteristics of bacteria.
B．How bacteria reproduce.
C．The various functions of bacteria.
D．How bacteria contribute to disease.
1)Students who reflect on their own （） will be more successful in learning.
A、thinking
B、evaluation
C、performance
D、activities
2)Which of the following statements is true？ （）
A、Students learn learning strategies from the teachers only.
B、Learning strategies are completely unobservable.
C、Students need to explore new learning strategies for themselves.
D、Teachers are the sole judges of students’ progress.
3)Teachers should encourage students to rely more on（）.
A、books
B、notes
C、tutors
D、themselves
4)Better learning strategies can make language learning more（）.
A、fun
B、interesting
C、efficient
D、exciting
5)Learning strategies are unobservable mental processes, so teachers should make them （）.
A、simpler
B、more familiar
C、more concrete
D、more applicable
A.grammatical
B. syntactic
C. functional
D. Lexical
"We had to be careful and not overdo it," Edward admits. Now Caspar is at Oxford—which once looked unlikely because he is also slightly dyslexic. In fact, when he was applying to Oxford, none of his school teachers thought he had a chance. "So then we did several thinking sessions," his father says, "using my techniques and, when he went up for the exam, he did extremely well." Soon after, Edward de Bono decided to write his latest book, "Teach Your Child How to Think", in which he transforms the thinking skills he developed for brain-storming businessmen into informal exercises for parents and children to share.
Thinking is traditionally regarded as something executed in a logical sequence, and everybody knows that children aren't very logical. So isn't it an uphill battle, trying to teach them to think？ "You know," Edward de Bono says, "if you examine people's thinking, it is quite unusual to find faults of logic. But the faults of perception are huge! Often we think ineffectively because we take too limited a view."
"Teach Your Child How to Think" offers lessons in perception improvement, of clearly seeing the implications of something you are saying and of exploring the alternatives.
What is TRUE about Caspar？
A．He is Edward's son.
B．He is an adventurous thinker.
C．He first described lateral thinking.
D．He is often scolded by his teacher.
Until recently, the observation-intensive approach needed for accurate, very short range forecasts, or "nowcasts" , was impracticable. The cost of equipping and operating many thousands of conventional weather stations was extremely high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network were beyond overcoming. Fortunately, scientific and technological advance have overcome most of these problems. Radar systems, automated weather instruments , and satellites are all capable of making detailed, nearly continuous observations over large regions at a relatively low cost. Communication satellites can transmit data around the world cheaply and immediately, and modern computers can quickly compile and analyze this large volume of weather information. Meteorologists (气象学家) and computer scientists now work together to design computer programs and video equipment capable of transforming raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly. As meteorologists have begun using these new technologies in weather forecasting offices, nowcasting is becoming a reality.
What is the best title of the passage？
A．Severe Thunderstorms and Damages
B．Weather Forecasting and Life-threatening
C．Science Advances and Nowcasts
D．Available Data and Nowcasts
