Sustainable management is seen as a practical and economical way of protecting species from dying out. Instead of depending on largely ineffective laws against poaching (偷猎), it gives local people a good economic reason to preserve plants and animals. In Zimbabwe, for instance, there is a sustainable management project to protect elephants. Foreign tourists pay large sums of money to kill these animals for sports. This money is then given to the inhabitants of the area where the hunting takes place. In theory, locals will be encouraged to protect elephants, instead of poaching them because of the economic benefit involved.

This sounds like a sensible strategy, but it remains to be seen whether it will work. With corruption in these developing countries, some observers are skeptical that the money will actually reach the people it is intended for. Others wonder how effective the locals will be at stopping poachers.

There are also questions about whether sustainable management is practical when it comes to protecting forests. In theory, the principle should be the same as with elephants --- allow logging companies to cut down certain number of trees, but not so many as to completely destroy the forest.

Sustainable management of forests requires controls on the number of trees which are cut down, as well as investment in replacing them. Because almost all tropical forests are located in countries which desperately need funds from logging, there are few regulations and motive to do this.

One solution might be to confirm wood comes from sustainably managed forests. In theory, consumers would buy only this wood and so force logging companies to go "green" or go out of business. Unfortunately, unrestricted logging is so much more profitable that wood prices from managed forests would cost up to five times more --- an increase that consumers, no matter how "green", are unlikely to pay.

Which of the following statements is true in understanding the "sustainable management"?

A. Sustainable management is usually used in commercial units.

B. Sustainable management is more powerful than laws.

C. We will probably meet many problems in the course of applying sustainable management.

D. It is likely that sustainable management will replace the laws in protecting living things.

The example of Zimbabwe is mentioned in the first paragraph is to ________.

A. prove that sustainable management is ineffective

B. explain what sustainable management is

C. show that tourism there is booming

D. illustrate that people there are good at making money with elephants

The phrase "go green" in Paragraph 5 probably means _______.

A. a company begins to make money instead of being in red

B. making the forests always green in color

C. operating in ways which do not damage the environment

D. starting from the very beginning

What is the passage mainly about?

A. What environmental protection mainly include.

B. The feasibility (可行性) of sustainable management in environmental protection.

C. Different people’s attitudes towards sustainable management.

D. How people can protect animals and plants.

What attitude does the author take towards the sustainable management?

A. Positive.   B. Pessimistic.             C. Negative.              D. Uncertain.

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Do you want to live another 100 years or more? Some experts say that scientific advances will
one day enable humans to last tens of years beyond what is now seen as the natural limit of the human life span.
“ I think we are knocking at the door of immortality (永生),” said Michael Zey, a Montclair State University business professor and author of two books on the future. “ I think by 2075 we will see it and that’s a conservative estimate.”
At the conference in San Francisco, Donald Louria, a professor at New Jersey Medical School in Newark said advances in using genes as well as nanotechnology(纳米技术) make it likely that humans will live in the future beyond what has been possible in the past. “ There is a great push so that people can live from 120 to 180 years,” he said. “ Some have suggested that there is no limit and that people could live to 200 or 300 or 500 years.”
However, many scientists who specialize in aging are doubtful about it and say the human body is just not designed to last about 120 years. Even with healthier lifestyles and less disease, they say failure of the brain and organs will finally lead all humans to death.
Scientists also differ on what kind of life the super aged might live. “ It remains to be seen if you pass 120, you know; could you be healthy enough to have good quality of life?” said Leonard Poon, director of the University of Georgia Gerontology Center. “ At present people who could get to that point are not in good health at all.”
67. By saying “ we are knocking at the door immortality”, Michael Zey means_____.
A. they believe that there is no limit of living
B. they are sure to find the truth about long living
C. they have got some ideas about living forever
D. they are able to make people live past the present life span
68. Donald Louria’s attitude toward long living is that_____.
A. people can live from 120 to 180
B. it is still doubtful how long humans can live
C. the human body is designed to last about 120 years
D. it is possible for humans to live longer in the future
69. The underlined “ it” (Para. 4) refers to_____.
A. a great push
B. the idea of living beyond the present life span
C. the idea of living from 200 to 300
D. the conservative estimate
70. What would be the best title for this text?
A. Living longer or not
B. Science, technology and long living
C. No limit for human life
D. Healthy lifestyle and long living

(2013·高考陕西卷)It remains to be seen________the newly formed committee’s policy can be put into practice.

A．that? B．which

C．what? D．whether

Rain was falling as my sister Jill and I ran out of the church, eager to get home and play with the   1  that Santa had left for us. Across the street was a gas station where the bus stopped. It was   2  for Christmas, but I noticed a family standing close to the locked door in an attempt to keep   3 .
We were on the way to our grandparents’ house for the Christmas dinner. We were approaching our destination(目的地)   4  my father U-turned in the middle of the road and said, “I can’t   5  it! They are standing in the rain. They’ve got children. It’s Christmas. ”
When my father   6  the gas station, he rolled down his window. “Merry Christmas. You are waiting for the   7 ?” Father asked.
The man said that they were. They were going to Birmingham, where he had a brother and   8  of a job.
“Why don’t you all get in the car and I’ll   9  you up there. ”
After they settled in, Father looked back over his   0  and asked the children if Santa had found them yet. Their sad faces gave him the   11 .
“Well, I didn’t think so,” my father said, “  12  when I saw Santa this morning, he told me that he was having   13  finding all, and he asked me if he could leave your toys in my   14 . We’ll just   15  them first before I take you to your destination. ” All at once, the three children’s faces shone with   16 .
When we got out of the car at our house, the children   17  the front door and straight to the Christmas tree. One of the girls picked up Jill’s doll and   18  hugged it to her breast, and the other girl seized(抓住)something of mine.
All this happened many years ago, but the memory of it remains   19 . That was the Christmas when my sister and I learned the   20  of making others happy.

It remains a question_______we can finish the project in such a short time.

A．what             B．that              C．how              D．when