[填空题]Controlling our physical reactions and our thoughts is an effective means of managing stress.

[填空题]Controlling our physical reactions and our thoughts is an effective means of managing stress.

[填空题]Chemical reactions in our brains change with what we think.

[单项选择]

Belle, our tiny monkey, was seated in her special chair inside a chamber at our Duke University lab. Her right hand grasped a joystick (操纵杆) as she watched a horizontal series of lights on a display panel. She knew that if a light suddenly shone and she moved the joystick left or right to correspond to its position, she would be sent a drop of fruit juice into her mouth.
Belle wore a cap glued to her head. Under it were four plastic connectors, which fed arrays of microwires—each wire finer than the finest sewing thread—into different regions of Belle’s motor cortex (脑皮层), the brain tissue that plans movements and sends instructions. Each of the 100 microwires lay beside a single motor neuron (神经元). When a neuron produced an electrical discharge, the adjacent microwire would capture the current and send it up through a small wiring bundle that ran from Belle’s c
A. grasped the joystick
B. moved the joystick to the side of the light
C. sat quietly in a special chair
D. watched lights on a display panel

[简答题]Our reactions are formed on the terror level. We fear the worst, expect the worst, thus invite the worst.

[单项选择]

Our physical development is largely directed by the genes that we inherit from our parents. At one time, psychologists waged vigorous debates about how much of our behavior is genetically determined and how much of it is learned. This was known as the nature-nurture controversy. We now know that this "either-or" question is largely meaningless, since behavior depends on the interaction between heredity (遗传) and environment. However, it is also dear that genetic factors do set limits on our behavioral capabilities, as illustrated most dramatically in certain genetically baaed birth disorders. Psychologists working in the field of behavior genetics study how behavior is influenced by biological factors and how favorable or unfavorable environmental conditions can affect an organism’ s genetically inherited potential.
Genetic theory began around 1865, when Gregor Mendel reported on his experiments with garden peas. Mendel showed that heredity involved the pas
A. the environment can change the expression of a genotypic quality
B. the environment can change the expression of a phenotypic quality
C. every gene is not expressed in observable characteristics
D. all genes are expressed in observable characteristics

[单项选择]Our modem civilization must not be thought of as （　） in a short period of time.
A. being created
B. to have been created
C. having been created
D. to be created

[单项选择]Our civilization cannot be thought of as（）in a short period of time.
A. to have been created
B. to be created
C. having been created
D. being created

[单项选择]Our civilization cannot be thought of as ______ in a short period of time.
A. to have been created
B. to be created
C. having been created
D. being created

[简答题]Physical distribution

[填空题]Proper Physical Labor

[单项选择]Reactions to the online management system were more positive ______ those to a paper-based version of the same system.
A. which
B. as
C. than
D. that

[填空题]Smog is caused by chemical reactions between pollutants derived from different sources, primarily automobile exhaust and industrial emissions.

[填空题]

Seasick Try Controlling Your Breathing

If you get seasick easily, you may prepare for boat rides with pressure-point bracelets, ginger, or a prescription skin patch. (1) The technique presumably works because it helps control gravity sensors in the abdomen-a lesser-known input to our fine-tuned balance system.
(2) The inner ears sense motions of the head; the eyes see where the head is; and tiny sensory organs in muscles and tendons sense where the rest of the body is. More recently, researchers have realized that sensors in many other parts of the body also play a role: in the abdomen, the lower organs, and even blood vessels. (3) But if one or two don’t match up, the brain gets confused and we become nauseated.
Scientists knew the most sickening motions closely match the rate of natural breathing; they also knew that people naturally tend to breathe in time with a motion. (4)