A．thereB．whenC．whichD．where

A、vertebral venous plexus

B、superior vena cava

C、basilic vein

D、cephalic vein

E、anterior jugular vein

During a state of deep relaxation, several physiological changes take place in the body: the body's oxygen consumption is reduced; the heart heat decreases; muscle tension and sweating ease, and there is decreased sympathetic(交感的) nervous system activity. This restful state not only allows the body to repair and restore itself, but it has a calming effect on the consciousness.

How to achieve this state of relaxation, however, is a matter of opinion, and in some medical circles, a matter of controversy(争论). A recent report by Dr. David Holmes of the University of Kansas in the journal "American Psychologist" said that simply sitting in an armchair has just as many beneficial characteristics for the body as meditation(冥想) does. Researchers of other relaxation techniques disagree. These experts believe that more structured techniques, such as meditation, lead to a condition of deep relaxation.

The debate goes on, but one thing appears to be clear that the relaxation response can be reached by a number of methods, and the methods themselves are not as important as getting there. One day, one method may work best; on another day, an alternative method may be more appropriate. Once you are aware of all the methods, you can find the one that works best for you.

Some of the relaxation techniques are meditation, autoanalysis (自我心理分析) and progressive muscle relaxation. Although these techniques may not, in the end, produce more of a relaxation response than just sitting quietly in a chair, they have the added benefit of structure and discipline, and for these reasons appear to be more effective for most individuals.

According to the passage, which of the following statements is NOT true when a person is in a state of deep relaxation？

A．The body takes in less oxygen.

B．The heart beats less frequently.

C．Muscles become tense and the body sweats easily.

D．The consciousness becomes more or less calmed.

A．is mainly the mother's job

B．belongs among the duties of the father

C．is the job of schools and churches

D．involves a partnership of equals

B．to

C．onto

D．into

You can’t beat it，but you don’t have to join it. Maybe it got the name “common cold” because it’s more common in winter．The fact is，though，being cold doesn’t have anything to do with getting one． Colds are caused by the spread of rhinoviruses，and，at least so far，medical science is better at+ telling you how to avoid getting one than how to get rid of one．

Children are the most common way cold viruses are spread to adults，because they have more colds than adults—an average of about eight per year．Why d0 kids seem so much more easily to get colds than their parents ？ Simple．They haven’t had the opportunity to become immune to many cold viruses．

There are more than 150 different cold viruses，and you never have the same one twice． Being infected by one makes you immune to it—but only it．

Colds are usually spread by direct contact，not sneezing or coughing． From another person’s hand to your hand and then to your nose or eyes is the most common route．The highest concentration of cold viruses anywhere is found under the thumbnails of a boy，although the viruses can survive for hours on skin or other smooth surfaces．

Hygiene is your best defense．Wash your hands frequently，preferably with a disinfectant soap，especially when children in your household have colds．

But even careful hygiene won’t ward off every cold. So，what works when a coughing，sneezing，runny nose strikes？

The o1d prescription of two aspirins，lots of water，and bed rest is a good place to start． But you’ll also find some of the fo1k remedies…worth Wing．Hot mixtures of sugar（or honey），lemon，and water have real benefits．

第 21 题 According to the essay，you may have a cold because．

A．the weather is too cold．

B．the spread of rhinoviruses gets people infected．

C．another person’s coughing passes the cold to you

D．you wash your hands too often．

B．developed

C．informed

D．indicated

B.affects

C.detects

D.reflects

A．it is always the same kind of cold that you had last time．

B．it may be the same kind of cold that you had last time．

C．it is certainly not the same kind of cold that you had last time．

D．it is probably not the same kind of cold that you had last time．