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RSS订阅Question 26 to 30 are based on the following passage:
Not content with its doubtful claim to produce cheap food for our own population , the factory farming industry also argues that "hungry nations are benefiting from advances made by the poultry(家禽) industry". In fact, rather than helping the fight against malnutrition(营养不良) in "hungry nations,"the spread of factory farming has, inevitably aggravated the problem.
Largescale intensive meat and poultry production is a waste of food resources.
This is because more protein has to be fed to animals in the form of vegetable matter than can ever be recovered in the form of meat. Much of the food value is lost in the animal's process of digestion and cell replacement. Neither, in the ca se of chicken, can one eat feathers, blood, feet or head. In all, only about 44% of the live animal fits to be eaten as meat.
This means one has to feed approximately 9--10 times as much food value to the animal than one can consume from the carcass. As a system for feeding the hungry, the effects can prove disastrous. At times of crisis, grain is the food of life .
Nevertheless, the huge increase in poultry production throughout Asia and Africa continues. Normally British or US firms are involved. For instance, an American based multinational company has this year announced its involvement in projects in several African countries. Britain's largest suppliers chickens, Ross Breeders, are also involved in projects all over the world.
Because such trade is good for exports, Western governments encourge it. In 1979 , a firm in Bangladesh called Phoenix Poultry received a grant to set up a unit of 6,000 chickens and 18,000 laying hens. This almost doubled the number of poultry kept in the country all at once.
But Bangladesh lacks capital, energy and food and has large numbers of unemployed. Such chickenraising demands capital for building and machinery, extensive use of energy resources for automation, and involves feeding chickens with potential faminerelief protein food. At present, one of Bangladesh's main import s is food grains, because the country is unable to grow enough food to feed its population. On what then can they possibly feed the chicken?
26. In this passage the author argues that _____.
A) efficiency must be raised in the poultry industry
B) raising poultry can provide more protein than growing grain
C) factory farming will do more harm than good to developing countries
D) hungry nations may benefit from the development of the poultry industry
27. According to the author,in factory,vegetable food ______.
A) is easy for chickens to digest.
B) is insufficient for the needs of poultry
C) is fully utilised in meat and egg production
D) is inefficiently converted into meat and eggs
28. Western governments encourage the poultry industry in Asia because th ey regard it
as an effective way to __________.
A) boost their own exports
B) alleviate malnutrition in Asian countries
C) create job opportunities in Asian countries
D) promote the exports of Asian countries
29. The word"carcass"(Line 2, Para.3) most probably means"__________ ".
A) vegetables preserved for future use
B) the dead body of an animal ready to be cut into meat
C) expensive food that consumers can hardly afford
D) meat canned for future consumption
30. What the last paragraph tells us is the author's _________ .
A) detailed analysis of the ways of raising poultry in Bangladesh
B) great appreciation of the development of poultry industry in Bangladesh
C) critical view on the development of the poultry industry in Bangladesh
D) practical suggestion for the improvement of the poultry industry in Bangladesh
Questions 31 to 35 are based on the following passage:
We all have offensive breath at one time or another. In most cases, offensive breath emanates from bacteria in the mouth, although there are other more causes.
Until a few years ago, the most doctors could do was to counsel patients with bad breath about oral cleanliness. Now they are finding new ways to treat the usually curable condition.
Bad breath can happen whenever the normal flow of saliva(唾液) slows. Our mouths are full of bacteria feeding on protein in bits of food and shed tissue. The bacteria emit evilsmelling gases, the worst of which is hydrogen sulfide(硫 化物).
Mouth bacteria thrive in airless conditions. Oxygenrich saliva keeps their numbers down. When we sleep, for example, the saliva stream slows, and sulrueproducing bacteria gain the upper hand, producing classic"morning breath".
Alcohol hunger, too much talking, breathing through the mouth during exerciseanything that dries the mouth produces bad breath. So can stress, though it's not understood why. Some people's breath turns sour every time they go on a job interview.
Saliva flow gradually slows with age, which explains why the elderly have more bad breath trouble than younger people do. Babies, however, who make plenty of saliva and whose mouths contain relatively few bacteria have characteristically sweet breath.
For most of us, the simple, drymouth variety of bad breath is easily cured . Eating or drinking starts saliva and sweeps away many of the bacteria. Breakfast often stops morning breath.
Those with chronic dry mouth find that it helps to keep gum, hard candy, or a bottle of water or juice around. Brushing the teeth wipes out drymouth bad breath because it clears away many of the offending bacteria.
Surprisingly, one thing that rarely works is mouthwash. The liquid can mask bad breath odor with its own smell, but the effect lasts no more than an hour. Some mouthwashes claim to kill the bacteria responsible for bad breath. The trouble is, they don't necessarily reach all offending germs. Most bacteria are well protected from mouthwash under thick layers of mucus(粘液). If the mouthwash contains alcohol-as most do-it can intensify the problem by drying out the mouth.
31. The phrase "emanate from"in Paragraph 1 most probably means "______".
A) thrive on B) account for
C) originate from D) descend from
32. Which of the following is mentioned as one of the causes of bad breath?
A) Tooth trouble B) Sulfurrich food.
C) Too much exercise. D) Mental strain.
33. According to the passage, alcohol has something to do with bad breath mainly because
______.
A) it keeps offending bacteria from reproducing
B) its smell adds to bad dreath
C) it kills some helpful bacteria
D) it affects the normal flow of saliva
34. Mouthwashes are not an effective cure for bad breath mainly because _______.
A) they can't mask the bad odor long enough
B) they can't get to all the offending bacteria
C) their strong smell mixes with bad breath and makes it worse.
D) they can't cover the thick layers of mucus
35. We can infer from this passage that __________.
A) offensive breath can't easily be cured
B) elderly people are less offended by bad breath
C) heavy drinkers are less affected by bad breath
D) offensive breath is less affected by alcohol
Questions 36 to 40 are based on the following passage:
"Welcome to the U.S.A.! Major Credit cards accepted!"
By the millions they are comingno longer the tired, the poor, the wretched masslonging for a better living. These are the wealthy. "We don't have a budget, " says a biologist from Brazil, as she walks with two companions through New York City's South Street. "We just use our credit cards."
The U.S. has long been one of the world's most popular tourist destinations, but this year has been exceptional. First there was the World Cup, which drew thousands from every corner of the globe; then came the weakening of the U.S. dollar against major currencies. Now the U.S., still the world's superpower, can also claim to be the world's bargain basement(廉价商品部). Nobody undersells America these days on just about everything, from consumer electronics to fashion clothes to tennis rackets. Bottom retail prices-anywhere from 30% to 70% lower than those in Europe and Asia-have attracted some 47 million visitors, who are expected to leave behind $79 billion in 1994. That's up from $74 billion the year before.
True, not everyone comes just for brains. There remains an undeniable fascination in the rest of the world with all things American, nourished by Hollywood film s and U.S. television series. But shopping the U.S.A. is proving irresistible. Every week thousands arrive with empty suitcases ready to be filled; some even rent an additional hotel room to hold their purchases. The buying binge(无节制) has become as important as watching Old Faithful Fountains erupt in Yellowstone Par k or sunbathing on a beach in Florida.
The U.S. has come at last to appreciate what other countries learned long ago: t he pouring in of foreign tourists may not always be convenient, but is does put money in the bank. And with a trade deficit at about $130 billion and growing for the past 12 months, the U.S. needs all the deposits it can get. Compared with American tourists abroad, visitors to the U.S. stay longer and spend more money at each stop; an average of 12.2 night and $1624 a traveller versus the American s' four nights and $298.
36. From what the Brazilian biologist says, we know that tourists like her_______.