A fire is considered "under control" when _____.

t and may be worn by members of the crew ______．

A.in lieu of life preservers during fire drills

B.in lieu of life preservers during boat drills

C.in lieu of life preservers during an actual emergency

D.when carrying out duties near a weather deck's edge

a life. For example, people should know the safety measures to take before opening a hall door during a fire. Also, make sure everyone knows how to unlock doors that may be in the escape path. At times, a key is needed to unlock a door from the inside. So, keep the key in the lock, or, you can put the key on a key ring and put it where it can be found easily.

If you live in an apartment, know the ways you can use to get out. Show everyone in the family these routes. Stress the importance of using stairways or fire escapes, not elevators.

From most homes and the lower floors of apartment buildings, escape through windows is possible. Learn the best way of leaving by a window with the least chance of serious injury.

In a home fire, windows are often the only means of escape. The second floor window sill is usually not more than 13 feet from the ground. An average person, hanging by the fingertips, will have a drop of about six to the ground. Of course, it is after to jump a short way than to stay in a burning building. Rolling away from the building when you land.

Windows are also useful when you are waiting for help. Often you'll be able to stay in the room for several minutes if you keep the door closed and the windows open. Keep your head low in the window to be sure you get fresh air rather than smoke that may have leaked into the room.

On a second or third floor, the best windows for escape are those which open onto a roof or balcony. From the roof or balcony, a person can either drop to the ground or await rescuer. Dropping onto cement or pavement might end in injury. Bushes, soft earth, and grass can help to break a fall. A rope ladder should be considered when the drop is too great.

In a town where the fire department acts quickly, it may be best to wait for rescuer. Close the doors and wait by an open window for help. Shout for help. Be sure to close the door before opening a window. Otherwise, smoke and fire may be drawn into the room by the draft.

From most homes you can escape a fire through the ______.

A．attic

B．garage

C．windows

D．balcony

heir eyes may help us to understand our feelings about color. If they can (1)_____ color differences, then perhaps we, too, are affected by (2)_____ unconsciously. Manufacturers have discovered by (3)_____ that sugar sells badly in green wrappings, (4)_____ blue foods are considered unpleasant, and the cosmetics should never be packaged (5)_____ brown. These discoveries have grown (6)_____ a whole discipline of color psychology that now finds (7)_____ in everything from fashion to interior decoration. Some of our (8)_____ are clearly psychological. Dark blue is the color of the night sky and (9)_____ associated with passivity and calm, while yellow is a day color with (10)_____ of energy and incentive. For primitive man, activity during the day (11)_____ hunting and attacking, while he soon saw as red, the color of blood and rage and the heat that came (12)_____ effort. And green is associated with passive (13)_____ and self preservation. Experiments have (14)_____ that green, partly bemuse of its physiological associations, also has a direct psychological (15)_____, it is a calming color. (16)_____ its exciting connotations, red was chosen as the signal for changer, (17)_____ closer analysis shows that a vivid yellow can produce a (18)_____ basic state of alertness and (19)_____, so fire engines and ambulances in some advanced communities are now (20)_____ around in bright yellow colors that stop the traffic dead.

A．see

B．reckon

C．distinguish

D．sense

reat number if human societies men's sureness of their sex role is tied up with their right, or ability, to practice some activity that women are not allowed to practice. Their maleness in fact has to be underwritten by preventing women from entering some field or performing some feat."

This is the conclusion of the anthropologist Margaret Mead about the way in which the roles of men and women in society should be distinguished.

If talk and print are considered it would seem that the formal emancipation of women is far from complete. There is a flow of publications about the continuing domestic bondage of women and about the complicated system of defences which men have thrown up around their hitherto accepted advantages, taking sometimes the obvious form. of exclusion form. types of occupation and sociable groupings; and sometimes the more subtle form. of automatic doubt of the seriousness of women's pretensions to the level of intellect and resolution that men, it is supposed, bring to the business of running the world.

There are a good many objective pieces of evidence for the erosion of men's status. In the first place, there is the widespread postwar phenomenon of the women Prime Minister, in India, Sri Lanka and Israel.

Secondly, there is the very large increase in the number of women who work, especially married women and mothers of children. More diffusely there ate the increasingly numerous convergences between male and female behaviour: the approximation to identical styles in dress and coiffure, the sharing if domestic tasks, and the admission of women to all sorts of hitherto exclusively male leisure-time activities.

Everyone carries round with him a fairly definite idea of the primitive or natural conditions of human life. It is acquired more by the study of humorous cartoons than of archaeology, but that does not matter since it is not significant as theory but only as an expression of inwardly felt expectations of people's sense of what is fundamentally proper in the differentiation between the roles of the two sexes. In this rudimentary natural society men go out to hunt and fish and to fight off the tribe next door while women keep the fire going. Amorous initiative is firmly reserved to the man, who sets about courtship with a club.

The phrase "men's sureness of their sex role" in the second line, first paragraph suggests that they ______.

A．are confident in their ability to charm women

B．take the initiative in courtship

C．have a clear idea of what is considered "manly"

D．tend to be more immoral than women are

When the Spring Festival flls,sed flowers bloom（盛开) on the windows of my home, Of cour

se,these are not16 flowers. But in the cold of17these wonderful flowers bring warmth to us. They are made of paper by my18 ,who is now aged 70. With a few cuts,she 19 a piece of paper into a beautiful work of art.When my grandma was young ,she was considered clumsy(笨拙的) in the 20 But on a cold winter night ,she saw some beautiful red paper21 on her new neighbor's windows. She was so interested in it and decided to22 from her neighbor. Tons of paper wus wasted, and her fingers were cut many times. But she 23 practicing. It took 10 years 24 my grandma could make paper art sillfully(熟地)，The red flowers,blooming like burning fire, light up her world. Now ,everyone inthe vllage 25 her. My grandma's story has shown me what it takes to realize one's dream.

16. A. nice B. real C. full D. sweet

17. A. spring B. summer C. autumn D. winter

18. A. sister B. aunt C. mother D. grandma

19. A. changes B. spreads- C. places D. burns

20. A. city B. townC. villageD. block

21. A. artB. moneyC. wallsD. books

22. A. buyB. stealC. learnD. borrow

23. A. ended upB. kept onC. put offD. thought about

24. A. beforeB. afterC. whileD. since

25. A. servesB. pardorsC. respectsD. warns

recognize anything in it at all. Ask them whether they saw an animal and they consider themselves to be making a futile guess. Yet those guesses are right much more often than they are wrong. That is because the brain can carry out immediate visual processing even when it does not have time for any cognitive back-chatter. A neuroscientist trying to understand how people recognize objects would thus start with this simplest of systems.

That is the purpose of Dr. Serre's computer. His project is nothing less than ad attempt to reverseengineer the relevant part of the brain. That part is the ventral visual pathway. Anatomy shows that it is organized into numerous areas. Experiments on monkeys, in which researchers have recorded what excites individual nerve cells in each of these areas, give strong hints about how it works.

The pathway is hierarchical. Signals from the retina flow to the most basic processing area first; the cells in that area fire up others in the next area, and so on. Those in the first area are fussy. They react to edges or bars in particular orientations. By combining their signals, however, cells in the second area can respond to comers or bars in any orientation. And so the system builds up. Cells in the final area can recognize general things, animals included.

Dr. Serre considered his computer's processing units analogous to nerve cells, and he organized them into areas, just as they are in real brains. Then he let the machine learn in much the same way that babies do. First he mimicked early development when nerve cells are plastic. At this stage babies' brains tune their nerve cells to visual features according to how common those features am in the world around them. That is why kittens raised so that they see only vertical lines have brains that look different from those raised in an environment with purely horizontal ones. Dr. Serre's processor developed sensitivities in a similar fashion when he showed it lots of photographs. That stage complete, he then told the computer when what it "saw" contained an animal, and when it did not.

The result was a model that closely imitates the ventral visual pathway. Processing units in each area are sensitive to the same set of features as nerve cells in the brain's analogous areas, and they are linked together as they are in the brain. This artificial recognition system correctly distinguishes photographs containing animals from those without creatures 82% of the time; Dr. Serre's students get it right 80% of the time. Moreover, his computer and his volunteers tend to slip up on the same images — and turning photographs on their sides makes poorer animal-recognizers out of both, by roughly the same amount.

The phrase "cognitive back-chatter" in paragraph 1 probably means ______.

A．communication with others

B．response to certain stimulation

C．instant processing of information

D．recognizing pictures or objects

A.build a fire

B.grow a fire

In the phrase “the tongues of fire”, the word fire is semantically motivated.()

Fire dampers prevent the fire spreading through the process of

A.convection

B.conduction

C.radiation

D.direct contact