The word “conservation” has a thrifty meaning. To conserve is to save and protect, to leave what we ourselves enjoy in such a good condition that other s may also share the enjoyment. Our forefathers had no idea that human population would increase faster than the supplies of raw materials: most of them, even until very recently, had the foolish ideas that the treasures were “limitless” and could “last forever”. Most of the citizens of earlier generations knew little or nothing about the complicated and delicate system that runs all through nature, and which means that, as in a living body, an unhealthy condition of one part will sooner or later be harmful to others.

Fifty years ago, nature study was not part of school work: scientific forestry was a new idea; wood was still cheap because it could be brought in any quantity from distant woodlands; soil destruction and river floods were not national problems; nobody had yet studied long-term climate cycles in relation to proper land use; even the word “conservation” had nothing of the meaning that it has for us today.

For the sake of ourselves and those who will come after us, we must now set about correcting the mistakes of our forefathers .Conservation should be made part of everybody’s daily life. To know about the water table in ground is jus as important to us as knowledge of the basic math formulas. We need to know why all watersheds need the protection of planet life and why the running, current of streams and rivers must the duly of planting trees as well as of cutting them. We need to know the importance of big, grown trees, because living space for most man’s fellow creatures on this planet is figured not only in square measures of surface but also in cubic volume above the earth. In a word, it should be our goal to restore as much as the original beautify of nature as we can.

68. The author’s attitude towards the use of natural resources is ____

A. Positive       B. uninterested       C. optimistic       D. critical

69. According to the author, the greatest mistake of our forefathers was that ______

A. They dad no idea about scientific forestry

B. They dad littler or no sense of environment protection

C. They were not awore of the importance of nature study

D. They dad no idea of how to make good of raw materials

70. To avoid repeating, the mistakes of our forefathers, the author suggests that _____

A. We plant more trees

B. Natural sciences he taught to everybody

C. Environmental education be given to everybody

D. We return to nature

71. How can you understand the underlined sentence in the lat paragraph?

A. Our living space on the hearth is getting smaller and smaller.

B. Our living space should be measured in cubic volume.

C. We need to take some measures to protect space.

D. We must preserve good living condition for both birds and animals.

As you grow rapidly through your teenage years, you will experience a lot of changes. The changes may seem difficult.   【小题1】  Don't panic! You will deal successfully with them! You are a young adult now!
With more responsibility, you will find more freedom to make your own choices. This is a time to be well informed about making choices. In this way you can make healthy balanced decisions.   【小题2】 You may already know your career path or you may have no idea at all what you want to do. Both situations are fine! Work hard and the right opportunity will present itself to you.
Young adulthood means greater freedom and more choices.   【小题3】  But try not to shut your family out of your life. You should learn to think of others even though you are old enough to look after yourself.
It is also perfectly natural at this time for you to spend more time with your friends than your family.   【小题4】  A true friend will stand by you no matter what happens.
This period is a part of the life cycle. There are some people who will be with you throughout life's journey. There will be some people with whom you part and go separate ways. Leaving school can be hard. The reality is that you may not even see all of your classmates again.
You are a young adult. It is your life. No one can live it for you.  【小题5】 So making the right choices will be important to you. Life is for living. Enjoy your life wisely!

______ important thing in life is to have a great aim, and ______ determination to  attain it.

1. A.
   An ; 不填
2. B.
   A ; the
3. C.
   The ; the
4. D.
   The ; 不填

My elder brother Steve, in the absence of my father who died when I was six, gave me important lessons in values that helped me grow into an adult.
For instance, Steve taught me to face the results of my behavior. Once when I returned in tears from a Saturday baseball game, it was Steve who took the time to ask me what happened. When I explained that my baseball had soared through Mrs. Holt’s basement window, breaking the glass with a crash, Steve encouraged me to confess（承认）to her. After all, I should have been playing in the park down Fifth Street and not in the path between buildings. Although my knees knocked as I explained to Mrs. Holt, I offered to pay for the window from my pocket money if she would return my ball. I also learned from Steve that personal property is a sacred（神圣的） thing. After I found a shiny silver pen in my fifth-grade classroom, I wanted to keep it, but Steve explained that it might be important to someone else in spite of the fact that it had little value. He reminded me of how much I’d hate to lose to someone else the small dog that my father carved from a piece of cheap wood. I returned the pen to my teacher, Mrs. Davids, and still remembered the smell of her perfume as she patted me on my shoulder.
Yet of all the instructions Steve gave me, his respect for life is the most vivid in my mind. When I was twelve, I killed an old brown sparrow in the yard with a BB gun. Excited with my accuracy, I screamed to Steve to come from the house to take a look. I shall never forget the way he stood for a long moment and stared at the bird on the ground. Then in a dead, quiet voice, he asked, “Did it hurt you first, Mark?” I didn’t know what to answer. He continued with his eyes firm, “The only time you should even think of hurting a living thing is if it hurts you first. And then you think a long, long time.” I really felt terrible then, but that moment stands out as the most important lesson my brother taught me.
【小题1】 What is the main subject of the passage?

“Our aim is to take our art to the world and make people understand what it is to move,” said David Belle, the founder of parkour(跑酷).
Do you love running? It is a good exercise, yet many people find it boring. But what if making your morning jog a creative one? Like jumping from walls and over gaps, and ground rolls? Just like the James Bond in the movie Casino Royale? Bond jumps down from a roof to a windowsill and then runs several blocks over obstacles on the way. It is just because of Bond’s wonderful performances that the sport has become popular worldwide.
Yes, that’s parkour, an extreme street sport aimed at moving from one point to another as quickly as possible, getting over all the obstacles in the path using only the abilities of the human body. Parkour is considered an extreme sport. As its participants dash around a city, they may jump over fences, run up walls and even move from rooftop to rooftop.
Parkour can be just as exciting and charming as it sounds, but its participants see parkour much more than that.
Overcoming all the obstacles on the course and in life is part of the philosophy(理念) behind parkour. This is the same as life. You must determine your destination, go straight, jump over all the barriers as if in parkour and never fall back from them in your life, to reach the destination successfully. A parkour lover said, “I love parkour because its philosophy has become my life, my way to do everything.”
Another philosophy we’ve learnt from parkour is freedom. It can be done by anyone, at any time, anywhere in the world. It is a kind of expression of trust in yourself that you earn energy and confidence.
【小题1】Parkour has become popular throughout the world because of          .