It is only during the last few years that man has generally realized that in the world of nature a balance exists between all forms of life. No living thing can exist by itself. It is part of a system in which all forms of life are joined together. If we change one part of the nature order, this will almost certainly bring about changes in some other parts.

　　The cutting of forests reduced the supply of oxygen. The killing of weeds and insects by chemicals led to the wide-spread poisoning of animals and birds. The throwing of waste products into the ocean hurt life in the sea, while waste gases changed the chemical balance of the atmosphere and shut out some of the sun’s necessary life-giving rays.

　　And so we could go on adding more examples until in despair(绝望) we might feel like giving up the struggle to control these harmful human activities. Man is very clever at changing the world around him to satisfy his immediate needs, but he is not so clever at looking far ahead, or at thinking about what the future results of his action might be. Man may well destroy himself because of his silly action.

1.The first paragraph tells us that _____.

2.In the second paragraph the examples given are used to prove that _____.

3.The last paragraph suggests that in order to get his immediate benefits(利益) _____.

4.Which of the following is true according to the passage?

How many people have I met who have told me about the book that they have been planning to write but have never yet found the time? Far too many.

This is Life, all right, but we do treat it like a rehearsal (排演) and, unhappily, we do miss so many of its best moments.

We take jobs to stay alive and provide homes for our families, always making ourselves believe that this style of life is merely a temporary state of affairs along the road to what we really want to do. Then, at 60 or 65, we are suddenly presented with a clock and several grandchildren and we look back and realize that all those years waiting for Real Life to come along were in fact real life.

    In America they have a saying much laughed at by the English：“Have a nice day!” They speak slowly and seriously in their shops, hotels and sandwich bars. I think it is a wonderful phrase, reminding us, in effect, to enjoy the moment: to value this very day.

How often do we say to ourselves, "I'll take up horse-riding (or golf, or sailing) as soon as I get a higher position," only to do none of those things when I do get the higher position.

    When I first became a reporter, I knew a man who gave up a very well paid respectable job at the Daily Telegraph to go and edit a small weekly newspaper. At the time I was astonished by what appeared to me to be his completely abnormal (反常的) mental state. How could anyone turn his back on Fleet Street in central London for a small local area？I wanted to know.

Now I am a little older and possibly wiser, I see the sense in it. In Fleet Street the man was under continual pressure. He lived in an unattractive London suburb and he spent much of his life sitting on Southern Region trains.

1．The first paragraph of the passage tells us that ___________.

    A．we always try to find some time to write a book

    B．we always make plans but seldom fulfill them

    C．we always enjoy many of life's best moments

    D．we always do what we really want to do

2．The underlined phrase "turn his back on" (paragraph 6) most probably means___________.

    A．leave for B．return to         C．give up          D．rely on

3．The man ( paragraph 6) left his first job partly because he was___________.

    A．in an abnormal state              B．under too much pressure

    C．not well paid                         D．not respected

4．What is probably the best title for the passage?

    A．Provide Homes For Our Family          B．Take Up Horse-riding

    C．Value This Very Day                   D．Stay Alive

How many people have I met who have told me about the book that they have been planning to write but have never yet found the time? Far too many.

This is Life, all right, but we do treat it like a rehearsal (排演) and, unhappily, we do miss so many of its best moments.

We take jobs to stay alive and provide homes for our families, always making ourselves believe that this style of life is merely a temporary state of affairs along the road to what we really want to do. Then, at 60 or 65, we are suddenly presented with a clock and several grandchildren and we look back and realize that all those years waiting for Real Life to come along were in fact real life.

    In America they have a saying much laughed at by the English：“Have a nice day!” They speak slowly and seriously in their shops, hotels and sandwich bars. I think it is a wonderful phrase, reminding us, in effect, to enjoy the moment: to value this very day.

How often do we say to ourselves, "I'll take up horse-riding (or golf, or sailing) as soon as I get a higher position," only to do none of those things when I do get the higher position.

    When I first became a reporter, I knew a man who gave up a very well paid respectable job at the Daily Telegraph to go and edit a small weekly newspaper. At the time I was astonished by what appeared to me to be his completely abnormal (反常的) mental state. How could anyone turn his back on Fleet Street in central London for a small local area？I wanted to know.

Now I am a little older and possibly wiser, I see the sense in it. In Fleet Street the man was under continual pressure. He lived in an unattractive London suburb and he spent much of his life sitting on Southern Region trains.

45．The first paragraph of the passage tells us that____________.

    A．we always try to find some time to write a book

    B．we always make plans but seldom fulfill them

    C．we always enjoy many of life's best moments

    D．we always do what we really want to do

46．The underlined phrase "turn his back on" (paragraph 6) most probably means____________.

    A．leave for B．return to         C．give up          D．rely on

47．The man ( paragraph 6) left his first job partly because he was____________.

    A．in an abnormal state          B．under too much pressure

    C．not well paid                         D．not respected

48．What is probably the best title for the passage?

    A．Provide Homes For Our Family        B．Take Up Horse-riding

    C．Value This Very Day                  D．Stay Alive

How many people have I met who have told me about the book that they have been planning to write but have never yet found the time? Far too many.

This is Life, all right, but we do treat it like a rehearsal (排演) and, unhappily, we do miss so many of its best moments.

We take jobs to stay alive and provide homes for our families, always making ourselves believe that this style of life is merely a temporary state of affairs along the road to what we really want to do. Then, at 60 or 65, we are suddenly presented with a clock and several grandchildren and we look back and realize that all those years waiting for Real Life to come along were in fact real life.

    In America they have a saying much laughed at by the English：“Have a nice day!” They speak slowly and seriously in their shops, hotels and sandwich bars. I think it is a wonderful phrase, reminding us, in effect, to enjoy the moment: to value this very day.

How often do we say to ourselves, "I'll take up horse-riding (or golf, or sailing) as soon as I get a higher position," only to do none of those things when I do get the higher position.

    When I first became a reporter, I knew a man who gave up a very well paid respectable job at the Daily Telegraph to go and edit a small weekly newspaper. At the time I was astonished by what appeared to me to be his completely abnormal (反常的) mental state. How could anyone turn his back on Fleet Street in central London for a small local area？I wanted to know.

Now I am a little older and possibly wiser, I see the sense in it. In Fleet Street the man was under continual pressure. He lived in an unattractive London suburb and he spent much of his life sitting on Southern Region trains.

45．The first paragraph of the passage tells us that           .

    A．we always try to find some time to write a book

    B．we always make plans but seldom fulfill them

    C．we always enjoy many of life's best moments

    D．we always do what we really want to do

46．The underlined phrase "turn his back on" (paragraph 6) most probably means        .

    A．leave for             B．return to            C．give up             D．rely on

47．The man ( paragraph 6) left his first job partly because he was           .

    A．in an abnormal state                         B．under too much pressure

    C．not well paid                                    D．not respected

48．What is probably the best title for the passage?

    A．Provide Homes For Our Family           B．Take Up Horse-riding

    C．Value This Very Day                          D．Stay Alive

The bedroom door opened and a light went on, signaling an end to nap time．The toddle（初学走路的婴儿）, sleepy-eyed, clambered to a swinging stand in his crib．He smiled, reached out to his father, and uttered what is fast becoming the cry of his generation: "iPhone!"

         Just as adults have a hard time putting down their iPhones, so the device is now the Toy of Choice for many 1-, 2- and 3-year-olds．The phenomenon is attracting the attention and concern of some childhood development specialists．

Natasha Sykes, a mother of two in Atlanta, remembers the first time her daughter, Kelsey, now 3 but then barely 2 years old, held her husband's iPhone．"She pressed the button and it lit up．I just remember her eyes．It was like 'Whoa!' "The parents were charmed by their daughter's fascination．But then, said Ms．Sykes （herself a Black Berry user）, "She got serious about the phone．" Kelsey would ask for it．Then she'd cry for it．"It was like she'd always want the phone," Ms．Sykes said．

Apple, the iPhone's designer and manufacturer, has built its success on machines so user-friendly that even technologically blinded adults can figure out how to work them, so it makes sense that sophisticated children would follow．Tap a picture on the screen and something happens．What could be more fun?

The sleepy-eyed toddler who called for the iPhone is one of hundreds of iPhone-loving toddlers whose parents are often proud of their offspring's ability to slide fat fingers across the gadget's screen and pull up photographs of their choice．

Many iPhone apps on the market are aimed directly at preschoolers, many of them labeled "educational," such as Toddler Teasers: Shapes, which asks the child to tap a circle or square or triangle; and Pocket Zoo, which streams live video of animals at zoos around the world．

Along with fears about dropping and damage, however, many parents sharing iPhones with their young ones feel guilty．They wonder whether it is indeed an educational tool, or a passive amusement like television．The American Academy of Pediatrics is continually reassessing its guidelines to address new forms of "screen time．" Dr．Gwenn Schurgin O'Keeffe, a member of the academy's council, said, "We always try to throw in the latest technology, but the cellphone industry is becoming so complex that we always come back to the table and wonder- Should we have a specific guideline for them?"

Tovah P. Klein, the director of a research center for Toddler Development worries that fixation on the iPhone screen every time a child is out with parents will limit the child's ability to experience the wider world.

As with TV in earlier generations, the world is increasingly divided into those parents who do allow iPhone use and those who don't. A recent post on UrbanBaby.com, asked if anyone had found that their child was more interested in playing with their iPhone than with real toys. The Don't mothers said on the Website: "We don't let our toddler touch our iPhones ... it takes away from creative play." "Please ... just say no. It is not too hard to distract a toddler with, say ... a book."

Kathy Hirsh-Pasek, a psychology professor who specializes in early language development, sides with the Don'ts. Research shows that children learn best through activities that help them adapt to the particular situation at hand and interacting with a screen doesn't qualify, she said.

Still, Dr. Hirsh-Pasek, struck on a recent visit to New York City by how many parents were handing over their iPhones to their little children in the subway, said she understands the impulse (冲动). "This is a magical phone," she said. "I must admit I'm addicted to this phone."

1.The first paragraph in the passage intends to ______.

A．get us to know a cute sleepy-eyed child in a family

B．show us how harmful the iPhone is

C．lead us to the topic of the toddlers' iPhone-addict

D．explain how iPhone appeals to toddlers

2.According to the author, iPhones are popular with both adults and young kids because they are______.

A．easy to use                                 B．beautiful in appearance

C．cheap in price                                        D． powerful in battery volume

3.The underlined word "them" in the seventh paragraph refers to ______.

A．televisions  B．cellphones           C．iPhones          D．screens

4.The tone of the author towards parents sharing iPhones with their children is ______.

A．negative            B．subjective            C．objective          D．supportive

5.The passage mainly tells us ______.

A．children's iPhone addict is becoming a concern

B．iPhone is winning the hearts of the toddlers

C．Apple is developing more user-friendly products

D．ways to avoid children's being addicted to iPhone games