When you think of all the ways your body can get hurt---falling off a bike, stepping on a nail, being bitten by a crazed dog---the aches and pains that come from sitting at a computer may not seem like much.
But more doctors are getting worried about just that. If you sit at a PC the wrong way, the nerves and muscles in your back, neck and arms can get out of line.
Ergonomics is the study of how people work and how jobs and equipment can be designed so that people are safer and more comfortable in the things they do---whether that’s working on a factory assembly line or sitting in front of a computer.
The monitor
You should not have to tilt（倾斜） your neck up or down to lock at the screen. Your eyes should be level with the top of the screen.
How far away should you sit? Reach your arm out so your fingertips just touch the screen.
The keyboard
It should be directly in front of you. Don’t unfold the legs on the bottom of the keyboard so that it tilts up toward you---it should be as flat as possible, or even tilted away from you. You want your wrists “neutral,” which means straight, not bent. This puts less strain on your nerves and muscles.
Arms should be close to the body. Don’t look at your fingers as you type. Use a document holder to hold papers at the same level as the monitor. Keep the mouse on the same level as the keyboard and close by--- so you don’t have to reach for it.
The chair
Your feet shouldn’t dangle---the blood will pool in your feet. They should rest flat on the floor, or on phone books, if necessary. Your back needs support. Roll up a towel and stick it there.
The Body
If you think of your body as a collection of right angles when you sit at a computer, you should be just fine.
Your hips should be at a 90-degree angle to your back. That takes the pressure off the spine. And your knees should bend at a 90 degree angle so your feet are flat.The passage mainly talks about .
| A．avoiding pains caused by using PC | B．the science of ergonomics |
| C．illness caused by a computer | D．how to keep fit |
The underlined word “ergonomics” most probably means ______ in Chinese.
| A．管理学 | B．人机工程学 | C．机械工程学 | D．经济学 |
How high should a monitor be placed according to the passage?
| A．As high as your arms. |
| B．A little higher than your eyes. |
| C．A little lower than your eyes. |
| D．At the same level as your eyes. |
How shouldn’t a keyboard be placed?
| A．Tilting away from you. | B．Tilting up toward you. |
| C．Flat. | D．Not mentioned. |
How should you place your foot?
| A．Rest them on a phone book. | B．Rest them on the floor. |
| C．They should rest flat. | D．They should dangle. |
PENRICE
COMMUNITY COLLEGE
Cornwall County Counicl
We Need Two
ASSISANT HEADTEACHERS
From January 2006
L13—17(£44,703—£49,314)
Penrice Community College is a highly regarded and successful 11-16 specialist languages college. Following the recent appointment of a new headteacher we’re restructuring the leadership team to create two new roles.
One post will involve leading teaching teams with responsibility for developing curricula(课程) and time-tabling.
The other post will be leading student based teams and responsibility for student learing outcomes and the removal of barriers to student success such as poor attendance or disaffection.
Penrice Community College is:
·A school with 1,350 wonderful students
·High achieving with results well above average
·Mentioned twice in HMCl’s outstanding schools list
·A British Council International School
·Situated in a beautiful part of mid-Cornwall
All enquires for information and application packs should be made to Danielle Eyres on 01726—72613 or at secretary@penricornmvall .sch.uk
Closing date for applications is Tuesday October 4th at noon. Interviews will be held on Monday 17th and Tuesday 18th October 2005.
45．The underlined word “restructuring’ probably means ________.
A．formally telling sb to do B．Joining the two parts together
C．rebuilding sth and making it work again D．extending the size of sth
46．The purpose of the above passage is to ________
A．introduce the advantages of a school
B．report the appointment of a new head teacher
C．call on more students to go to school
D．advertise for new assistant headteachers
47．The two new posts are required to do all the following EXCEPT ________.
A．stop students missing classes B．get students interested in learning
C．lead students-based teams D．arrange new curricula
48．HMCI is probably the name of ________.
A．an educational organization B．a school leader
C．a political party D．a news reporter
Informal conversation is an important part of any business relationship．Before you start a discussion，however，make sure you understand which topics are suitable and which are considered taboo（禁忌）in a particular culture。Latin Americans enjoy sharing information about their local history，art，and customs．You may expect questions about your family，and be sure to show pictures of your children．You may feel free to ask similar questions of your Latin American friends．The French think of conversation as an art form，and they enjoy the value of lively discussions as well as disagreements。For them，arguments can be interesting-and they can cover pretty much or any topic-as long as they occur in are spectful and intelligent manner．
In the United States，business people like to discuss a wide range of topics，including opinions about work，family，hobbies，and politics。In Japan，China，and Korea，however，people are much more private．They do not share much about their thoughts，feelings，or emotions because they feel that doing so might take away from the harmonious business relationship they’re trying to build．Middle Easterners are also private about their personal lives and family matters．It is considered rude，for example，to ask a businessman from Saudi Arabia about his wife Or children．
As a general rule，it’S best not to talk about politics or religion with your business friends．This can get you into trouble，even in the United States，where people hold different religious views．In addition，discussing one’S salary is usually considered unsuitable．Sports is typically a friendly subject in most parts of the world，although be careful not to criticize fl national sport．Instead，be friendly and praise your host’s team．
69．The author considers politics and religion
A．cheerful topics B．taboo
C．rude topics D．topics that can never be talked about
70．Which is typically a friendly topic in most places according to the author？
A．Sports． B．Children． C．Personal feelings． D．Families．
71．Why are people from Asia more private in their conversation with others？
A．They don’t want to talk much with others．
B．They don’t want to have their good relationship with others harmed by informal conversation。
C．They are afraid to argue with their colleagues．
D．They want to keep their feelings to themselves．
72．What shouldn’t you do when talking about sports with colleagues from another country？
A．Praising your own country’S sports．
B．Criticizing your own country’S sports．
C．Praising the sports of your colleagues’country．
D．Criticizing the sports of your colleagues’country．
In 2004，the World Health Organization，WHO，warned of a possible outbreak of another serious disease which may be even more deadly than SARS．The WHO believes that it is likely that bird flu will spread to human beings in the next few years．If it does，up to seven millions people could die from the disease．
Diseases like bird flu are caused by viruses，that is，tiny things which change and be come more dangerous over time．When a new type of a common virus changes，it may be able to get past the body’S immune system．If that happens，humans are in great danger until a cure or treatment becomes available．
There have always been viruses and people always get sick，of course，but as we saw with SARS，the situation is more difficult today．People travel more than ever before，which means that disease can spread quickly and across large areas——in fact the whole world．
Scientists are already working on drugs that will prevent or limit the effect of a new virus，but the process takes time．It is just as important to make sure that countries，especially poor countries，are prepared to deal with the disease。New disease usually affect poor areas the most，so we must help develop health care in all countries．
73．The situation is more serious today because．
A．people travel more B．people don’t eat health food
C．there aren’t enough hospitals D．scientists can’t find a cure
74．From this passage we know．
A．bird flu will surely spread to human beings in the next few years．
B．a virus changes and become less dangerous over time．
C．SARS is 1ikely to come again in some years．
D．poor areas usually suffers more from Dew diseases than rich areas．
75．The possible title of this passage is
A．The Work of WHO
B．Scientists Are Working Hard on Drugs for Diseases
C．What Is a Virus
D．Virus Changes and Causes New Diseases Over Time
Dogs have long been used to find explosives and drugs．Now，a new study shows that man’s best friend can also help to find lung and breast cancer，researchers report in integrative Cancer Therapies．The findings show that trained ordinary household dogs can detect early—stage lung and breast cancers by smelling the breath samples of patients．
Researchers have found that cancer cells send out molecules different from those of healthy ones，and that might be sensed by smell by the highly sensitive dog’s nose．
For the study，five dogs were trained by a professional instructor to respond differently to breath samples of healthy and cancer patients．“The dogs learned to sit or lie down in front of cancer patient samples and to ignore control samples through the method of food reward，” McCulloch explained．
After a period of training，researchers tested the animals’ability to distinguish cancer patients from controls．The animals were given breath samples from 55 patients with lung cancer，3 1 with breast cancer and 83 healthy controls who were not included in the original training period．
McCulloch’s group found that the dogs were able to correctly distinguish the breath samples of cancer patients from those of the control subjects in about 90 percent of the cases．The dogs were also able to detecting early-stage lung and breast cancers．
“These results show that there is hope for early detection，”McCulloch said．The re-searches are planning to conduct further studies on the breath composition of cancer patients to possibly design an electronic device that can do the dogs’job．“A dog’s nose is so powerful it can detect odors（气味）10 000 to 100 000 times better than a human nose can．I hope people will be interested in doing this research，”McCulloch added，“It shows that there is definitely something out there．”
65．McCulloch and his group used in their research．
A．10 dogs and 55 people B．5 dogs and 86 people
C．10 dogs and 83 people D．5 dogs and 169 people
66．The underlined work “distinguish” means
A．to make somebody feel better B．to recognize differences of
C．to remember somebody forever D．to discomfort somebody
67．We can infer from the passage that．
A．dogs can smell signs of other cancers except the above two kinds
B．the final goal of the researchers is to design an electronic dog to detect cancer
C．dogs can detect odors 10 000 to 100 000 times better than humans can
D．dogs will soon be widely used to smell signs of cancers in hospitals
68．Which of the following would be the best title？
A．Special Noses of Dogs B．Dogs and Cancer
C．Dogs Smell Signs of Cancer D．McCulloch’S New Discovery
Teeth are important．Strong，healthy teeth help you chew foods that help you grow．They help you speak clearly．And，they help you look your best．Here are some tips for you to take care of your teeth．
1．Brush your teeth on the right way．
Brush your teeth at 1east twice a day—after breakfast and lunch or after sweet snacks，too．
Brush all of your teeth，not just the front ones，Spend time brushing teeth along the sides and back of your mouth．Brush away from your gums，too．
Spend at least three minutes each time you brush．Play a song you like to help pass the time．Get a new toothbrush every three months．When you buy your toothbrush，be sure it has soft bristles（毛）．
2．Learn how to floss your teeth．
Flossing is a very important way to keep your teeth healthy．Food may hide in places where a toothbrush cannot get to，like the space between two teeth．Flossing can help get rid of it．Carefully move floss between two teeth．Up and down．You’11 need to floss your teeth at least once a day．
3．Have good eating habits．
You need to be careful about what you eat and drink。Eating sugar is a major of tooth decay（腐败）．Eating sugar before you go to bed can make things even worse，eat lots of fruit and vegetables and drink water instead of soda．
60．The passage is mainly about．
A．how to take care of your teeth
B．how to brush your teeth
C．how to form good eating habits
D．how to floss your teeth
61．The underlined word “tips” in this passage means．
A．money given to the waiter for personal services
B．piece of advice on how to do something
C．light blow，tape
D．thin end of something
62．When you brush your teeth．at leastminute（s）is necessary．
A．1 B．2 C．3 D．4
63．Which is NOT mentioned in this passage？
A．Flossing your teeth． B．Having good eating habits．
C．Brushing your teeth． D．Going to see the dentist．
64．Which of the following statements is NOT true according to this article？
A．We should brush our teeth at least twice a day．
B．Flossing can help to get rid of the food hidden between two teeth．
C．One of the major causes of tooth decay is eating sugar．
D．We don’t have to brush our teeth if we eat a lot of fruit and vegetables．