Adult butterflies use their se
nses of sight, touch, hearing, smell, and taste to survive in the world, find food and mates, lay eggs in an appropriate place, migrate, and avoid hungry predators.
Sight
Butterflies have large, compound (multifaceted) eyes, which allow them to see in all directions without turning their heads. Like most insects, butterflies are very nearsighted, so they are more attracted to a large stand of flowers rather than individual plants. Butterflies do not "see" colors such as red, green, and yellow, but sense polarized（偏振的） light, which indicates the direction the sun is shining, as well as ultraviolet light, which is present on many flowers and guides butterflies to nectar （花蜜）sources.
Smell
Butterflies have a very well-developed sense of smell, but it's not in their nose (since they don't have one). Sense receptors located in their antennae, feet, and many other parts of the body help butterflies find food (usually flower nectar), and mates (the female smells the male's pheromones).
Taste
Butterfly's feet have sense organs that can taste the sugar in nectar, letting the butterfly know if something is good to eat or not. Some females also taste host plants in order to find appropriate places to lay their eggs. Adult butterflies and moths feed using a probo
scis, a long, coiled tube. Butterflies force blood into the tube to straighten it out, allowing them to feed. Butterflies get all their food from this tube.
Hearing
Butterflies don't have ears. Instead they "hear" sounds through their wings by sensing changes in sound vibrations.
Butterflies may possess senses we don't even know about yet because their anatomy is very different than ours, and therefore difficult to understand when perceived through our own human senses. From the passage we can know that butterflies can see_____
A．thing beh ind them |
B．thing in the distance |
| C．most bright colors | D．flower nectar from a distance |
Butterflies can easily find food resources by using their______.
| A．sense organs of sight and smell | B．sense organs of sight and taste |
| C．sense organs of smell and hearing | D．sense organs of smell and taste |
How do butterflies feed themselves?
| A．by using their feet | B．by using a tube. |
| C．by using sense receptors | D．by using their wings. |
What is the passage mainly about?
| A．The food sources of butterflies. | B．The habits of butterflies. |
| C．The unusual body of butterflies. | D．the sense of butterflies. |
Go ahead，talk to your dog.
As many a dog owner will prove, our furry friends are listening. Now, for the doubters, there is scientific proof that they understand much of what they hear. A border collie called Rico can fetch at least 200 objects by name， researchers in Germany say. The dog also appears to learn words for new objects as easily as a 3-year-old child would. Its word-learning skill is as good as that of a parrot or chimpanzee.
In one experiment, the researchers took all 200 items that Rico is supposed to know and divided them randomly into 20 sets of 10 objects each. The dog waited with one of his owners in one room, while an experimenter put a set of 10 objects into another room. Then, the owner told the dog to fetch one of the items. The dog had to go to the other room and bring the object back.
In four trials, Rico got 37 out of 40 commands right. Because the dog couldn't see anyone to get visual clues about what to bring back, the scientists concluded that he must understand the meanings of certain words.
In another experiment, the scientists took one toy that Rico had never seen before and put it in a room with seven toys whose names he already knew. The dog's owner then told him to fetch the object, using a word Rico had never heard.
In 7 out of 10 trials, Rico picked the right object, suggesting that he figured out the answer by process of elimination. A month later, he remembered half of the new names, which further impressed the researchers.
Rico is probably smarter than the average dog, the scientists say. For one thing, he's a border collie, a breed known for its mental abilities. In addition, the 9-year-old dog has been trained to retrieve toys by their names since he was 9 months old.
It's hard to know if all dogs understand at least some of the words we say. Even if they do, they can't talk back. Still, it wouldn't hurt to sweet-talk your pup every now and then. You might just get a big, wet kiss in return!
48．The passage is probably taken from a book on _____
A．pets B．environment C．culture D．nutrition
49．It is implied that ____
A．Rico is probably cleverer than the average dog
B．Only a few dogs can talk back to its owner
C．if a chimpanzee is trained ,it can also recognize the names of objects
D．All dogs can understand words
50．How long is it since Rico’s owner began to train him?
A．nine months B．3years C．over nine years D．more than eight years
51．Rico can do all the following except _____
A．understanding the meanings of certain words.
B．picking the right object by process of elimination
C．remembering all of the new names he learned D．retrieving toys by their names
|
This booklet is designed to help you and your family plan for and survive a major earthquake. By taking action to be prepared, you can lessen the impact of an earthquake on your family. Set aside some emergency supplies, and teach your family what to do at home during and after a disaster. You could be without help for up to 72 hours, so learn to cope for at least that long.
Movement of the ground is seldom the actual cause of death or injury. Most casualties（意外） result from partial building collapse and falling objects and debris, like toppling chimneys, falling bricks, ceiling plaster, and light fixtures. Many of these conditions are easily preventable.第二部分阅读理解（共 25 小题。第一节每小题 2 分，第二节每小题 1 分；满分 45 分）
One of the most important aspects of an image is color. People are very sensitive to color, and different colors have different effects on people .
In general , red is an exciting color , which creates an image of action, energy and danger. Red is also the most frequently used color in flags .Eighty percent of the world’s flags contain red. A study in “Germany showed that football teams wearing red are more successful .Blue is a very calm color .Business executives usually wear dark blue suits .Blue is also a peaceful color. The flag of the United Nations is light blue .Yellow is associated with openness and freedom. Green is a very relaxing color .Surgeons nowadays wear green ,because it’s less tiring than white .Black creates an image of power and authority .It can also be a very threatening color .Gangsters and vampires often wear black .white is a pure and strong color .This is one reason why doctors wear white coats .We trust them more .Grey is a very anonymous color .People wearing grey don’t want other people to notice them .Brown is the opposite of black .It’s warm and friendly ,while black is threatening .
41．What does the author mainly talk about in the passage?
A．Color and Character B．Color and Image
C．Color and Occupation D．People are sensitive to color
42．Which of the following is true about color according to the passage?
A．Eighty per cent of the world’s flags contain green.
B．Brown is the opposite of pink, presenting warmth.
C．Red creates an image of energy , danger and freedom.
D．Blue is a peaceful and calm color.
43.The underlined word “anonymous” roughly means ______
A outstanding B．beautiful C．exciting D．unknown
Even plant can run a fever, especially when they’re under attack by insects or disease. But unlike human, plants can have their temperature taken from 3, 000 feet away - straight up. A decade ago, adopting the infrared （红外线）scanning technology developed for military purposes and other satellites, physicist Stephen Paley came up with a quick way to take the temperature of crops to determine which ones are under stress. The goal was to let farmers precisely target pesticide （杀虫剂）spraying rather than rain poison on a whole field, which invariably includes plants that don’t have pest （害虫）problems.
Even better, Paley’s Remote Scanning Services Company could detect crop problems before they became visible to the eye. Mounted on a plane flown at 3, 000 feet at night, an infrared scanner measured the heat emitted by crops. The data were transformed into a color - coded map showing where plants were running“ fevers”. Farmers could then spot - spray, using 50 to 70 percent less pesticide than they otherwise would.
The bad news is that Paley’s company closed down in 1984, after only three years. Farmers resisted the new technology and long - term backers were hard to find. But with the renewed concern about pesticides on produce, and refinements in infrared scanning, Paley hopes to get back into operation. Agriculture experts have no doubt the technology works. “This technique can be used on 75 percent of agricultural land in the United States, ” says George Oerther of Texas A & M. Ray Jackson , who recently retired from the Department of Agriculture, thinks remote infrared crop scanning could be adopted by the end of the decade. But only ff Paley finds the financial backing which he failed to obtain 10 years ago.
56．Plants will emit an increased amount of heat when they are________.
A. sprayed with pesticides B. facing an infrared scanner
C. in poor physical condition D. exposed to excessive sun rays
57．In order to apply pesticide spraying precisely, we can use infrared scanning to________.
A. estimate the damage to the crops B. measure the size of the affected area
C. draw a color -coded map D. locate the problem area
58．Farmers can save a considerable amount of pesticide by________.
A. resorting to spot – spraying B. consulting infrared scanning experts
C. transforming poisoned rain D. detecting crop problems at an early stage
59．The application of infrared scanning technology to agriculture met with some difficulties________.,
A. the lack of official support B. its high cost
C. the lack of financial support D. its failure to help increase production
60．Infrared scanning technology may be brought back into operation because of________.
A. the desire of farmers to improve the quality of their produce
B. growing concern about the excessive use of pesticides on crops
C. the forceful promotion by the Department of Agriculture
D. full support from agricultural experts
Suppose you work in a big firm and find English very important for your job because you often deal with foreign businessmen. Now you are looking for a place where you can improve your English, especially your spoken English.
Here are some advertisements about English language training from newspapers. You may find the information you need.
| Global English Center *General English in all four skills：listening，speaking，reading，and writing． *3-month（700 yuan），6-month（1，200 yuan）and one-year（2，000 yuan）courses． *Choice of morning or evening classes，3 hours perday，Mon—Fri． *Experienced college English teachers． *Close to city center and bus stops． Tel：67705272 Add：105 Ahongshan Road，100082 |
| Modem Language School *Special courses in English for business，travel，banking．hotel management and office skills． *Small classes（12-16 students）on Sat. & Sun. from 2︰00-5︰00 p. m. *Native English teachers from Canada and USA． *Language lab and computers supplied． *3-month course：1，050 yuan；6-month course：1，850 yuan． Write or phone；Modem Language School，675 Park Road．100056 Tel：67353019 |
| The 21 st Century English Training Centre *We specialize in effective（卓有成效的）teaching at all levels． *We offer morning or afternoon classes．both three months and a half at a cost of 800 yuan． *We also have a six-week TOEFL preparation class during winter and summer holidays． *Emrance exams：June 1 and Dec．1． *Only 15-minute walk from city center． Call 67801642 for more information． |
| The International House of English *Three／Six-month English courses for students of all levels at very low cost：60 yuan for 12 hours per week；convenient（方便的）class hours：9︰00-12︰00 a. m. and 2︰00-5︰00 p.m. *A four-month evening programmer for developing speaking skills （same cost as day classes）. *Free sightseeing and social activities（活动）． *Very close to the Central Park．For further information call 67432308. |
52．You work from 9︰00 a. m. to 4︰30 p. m. every day. Which school will you choose?
A. Global English Center and Modem Language School.
B. Global English Center and the International House.
C. Modern Language School and the 21st Century.
D. The 21st Century and the International House.
53．The 21st Century is different from the other three schools in that________.
A. its teaching quality is better B. it is nearest to the city center
C. its courses are more advanced D. it requires an entrance examination
54．You will probably prefer to go to the International House because it________.
A. offers free sightseeing and social activities B. has a special course in spoken English
C. costs less than the other schools D. has native English teachers
55．If you take the evening programmed at the International House, you will pay about________.
A. 60 yuan B. 240 yuan C. 720 yuan D. 960 yuan