更多"Longer Lives for Wild Elephants
"的相关试题:
[单项选择]
Longer Lives for Wild Elephants
Most people think of zoos as safe places for animals, where struggles such as difficulty finding food and avoiding predators don’t exist. Without such problems, animals in zoos should live to a ripe old age.
But matter may not be true for the largest land animals on Earth. Scientists have known that elephants in zoos often suffer from poor health. They develop diseases, joint problems and behavior changes. Sometimes, they even become infertile or unable to have babies.
To learn more about how captivity affects elephants, a team of international scientists compared the life spans of female elephants born in zoos with female elephants living outdoors in their native lands. Zoos keep detailed records of all the animals in their care, documenting factors such as birth dates, illnesses, weight and death. These records made it possible for the researchers to analyze 40 years of
A. have difficulty eating food
B. live to a ripe old age
C. are not afraid of predator
D. develop health problems
[单项选择]
Longer Lives for Wild Elephants
Most people think of zoos as safe places for animals, where struggles such as having difficulty finding food and avoiding predators (猛兽) don’t exist. Without such problems, animals in zoos should live to a ripe (成熟的) old age.
But that may not be true for the largest land animals on Earth. Scientists have known that elephants in zoos often suffer from poor health. Sometimes, they even become unable to have babies.
To learn more about how captivity (圈养) affects elephants, a team of international scientists compared the life spans of female elephants born in zoos with female elephants living outdoors in their native lands. Zoos keep detailed records of all the animals in their care, documenting factors such as birth dates, illnesses, weight and death. These records made it possible for the researchers to analyze 40 years of data on 800 African and Asian elephants in zoos across Europe. The scientists
A. live a long life.
B. give birth to many babies.
C. develop poor health.
D. have difficulty getting foo
[单项选择]第一篇 Longer Lives for Wild Elephants
Most people think of zoos as safe places for animals, where straggles such as difficulty finding food and avoiding predators don’t exist. Without such problems, animals in zoos should live to a ripe old age.
But that may not be true for the largest land animals on Earth. Scientists have known that elephants in zoos often suffer from poor health. They develop diseases. joint problems and behavior changes. Sometimes, they even become infertile, or unable to have babies.
To learn more about how captivity affects elephants, a team of international scientists compared the life spans of female elephants born in zoos with female elephants living outdoors in their native lands. Zoos keep detailed records of all the animals in their care, documenting factors such as birth dates, illnesses, weight and death. These records made it possible for the researchers to analyze 40 years of data on 800 African and Asian elephants in zoos across Europe. The scientists
A. develop poor health.
B. live a long life.
C. give birth to many babies.
D. have difficulty getting food.
[简答题]The lives of most men are determined by their environment. They accept the circumstances amid which fate has thrown them not only with resignation but even with good will. They are like streetcars running contentedly on their rails and they despise the sprightly flivver that dashes in and out of the traffic and speeds so jauntily across the open country. I respect them; they are good citizens, good husbands, good fathers, and of course somebody has to pay the taxes; but I do not find them exciting. I am fascinated by the men, few enough in all conscience, who take life in their own hands and seem to mould it to their own liking. It may be that we have no such thing as free will, but at all events we have the illusion of it. At a crossroad it does seem to us that we might go either to the right or the left and, once the choice is made, it is difficult to see that the whole course of the world’s history obliged us to take the turning we did.
[填空题]What do people fear the most and why
[填空题] Am I Making Any Money
0 Most people and most businesses are in business to make a profit. At the CORRECT
00 simplest level, profit means making more money than you spend on. Many ON
34 confuse profit with income. As a result, they can’’t grasp it why all their income
35 isn’’t getting them ahead} why no one wants to invest in their high-sales
36 company; why the bank won’’t extend to their line of credit. Most people are very
37 good at tracking their income. When someone pays for you, that is income.
38 Income is usually related to production levels, but is not tied to it directly. You
39 may produce more or less than you sell. For instance, if you have already 100
40 widgets in the warehouse when you receive an order for 150, you only have to
41 produce out 50 additional widgets. If you make widgets for skis, you may make
42 20 widgets every month during the summer even though you don’’t sell any, just
43 so that you
