题目内容
（请给出正确答案）
Why does the cost of living keep increasing？
A．Because are always shortages of goods.
B．Because the workers are getting lower and lower pay.
C．Because the government makes no interference.
D．Because people demand more and better goods.
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But I do not agree with the opinion that women have to show their beauty through their looks. The richness of their mind proves to be more beautiful and attractive than their looks. A woman who has experienced many troubles and may be called "aunt" or "granny" can still maintain her beauty if she has such excellent qualities as knowledge, ability, a kind heart and concern for others.
In addition, old and young, beautiful and ugly are relative concepts. People who keep a young mind will never feel old. Curious about new things and eager to learn more, they keep up with the tide. Plainly dressed women may have a type of beauty, which is pure and real.
Reading and learning is the best way to keep one youthful. Good books are fertile soil which can feed the flower of one's heart and looks.
Why does the author say that beauty and women are twins？
A．Women are born to be beauties.
B．Women like to show off their beauties
C．Women are proud of their beauty
D．Women try to maintain their beauty by dressing up
Researchers from the London School of Hygiene & Tropical Medicine said consumers were paying higher prices for organic food because of its imagined health benefits, creating a global organic market worth an estimated $48 billion in 2007.
A systematic review of 162 scientific papers published in the scientific literature over the last 50 years, however, found there was no significant difference.
"A small number of differences in nutrient content were found to exist between organically and conventionally (通常) produced foodstuffs, but these have nothing to do with public health, " said Alan Dangour, one of the report's authors.
"Our review indicates that there is currently no evidence to support the selection of organically over conventionally produced foods on the basis of nutritional superiority . "
The results of research, which was commissioned by the British government's Food Standards Agency, were published in the American Journal of Clinical Nutrition.
Sales of organic food have fallen in some markets, including Britain, as a slowdown in economic growth has led consumers to cut back on purchases.
The Soil Association said that growth in sales of organic products in Britain slowed to just 1.7percent, well below the average annual growth rate of 26 percent over the last decade.
Why does organic food cost more than conventionally produced food？
A．Because people think they are much healthier.
B．Because they are more delicious.
C．Because people prefer organic food.
D．Because they sell better.
Why aren't people enjoying better lives when they have jobs？
A．Because many families are divorced.
B．Because government aid is now rare.
C．Because their wages are low.
D．Because the cost of living is rising.
Why did they think $250 could be a reasonable price？
A.Because it was cheaper than the previous price
B.Because customers can divide them into several parts to eat
C.Because it was exactly the cost price
D.Because it was not the first time that the burger had been overcooked.
Why does it take long for people to change their food？
A． Because labs are not easily accessible to researchers.
B． Because some people are reluctant to accept the new diet.
C． Because food consumption is a culture of conservation.
D． Because some scientists are against the growing lab meat.
According to the passage, why does a drink bring serious results to a smoker？
A．Because it may act as a dissolving agent.
B．Because he is malnourished.
C．Because the liver can't dispose of alcohol
D．Because the liver has to clean the toxins.
Why does the author mention Karl Von Frisch in the second paragraph？
A．To make people believe his description of the beehive.
B．To introduce Karl's observation on bee behavior.
C．To contrast his theories with those of Karl Von Frisch.
D．To support the argument that bees use sunlight to navigate.
Why does the author mention bees，ants，toads，and turtles in the last paragraph？
A.To describe some unusual kinds of pets．
B.To measure distances trailed by various animals．
C.To compare their home-finding abilities with those of homing pigeons．
D.To interest the reader in learning about other animals．
Why does the author mention the psychological condition of the driver in Paragraph 2？
A．To give an example of the various reasons for road accidents.
B．To show how important it is for drivers to be emotionally healthy.
C．To show some of the inaccurate estimations by researchers.
D．To illustrate the hidden tensions in the course of driving.
A. The author does not give any reason in the whole passage.
B. Local governments are not skillful enough to kill mosquitoes.
C. Current sprays are not powerful enough to kill mosquitoes.
D. No new poisons have been developed to kill mosquitoes so far.
