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Why Our Children Need to Get Outside and Engage with Nature

In an age of cable TV, Nintendos (任天堂游戏机), Facebook and YouTube, is it actually important to be able to tell the species of one flower from another Well, it obviously can’t do any harm to know a bit about the natural world beyond the screen and the front door. And if, as a result of that, you develop a love for nature, you may care something for its survival, which is probably no bad thing.
But a growing body of evidence is starting to show that it’s not so much what children know about nature that’s important, as what happens to them when they are in nature (and not just in it, but in it by themselves, without grownups ). Respectable scientists—doctors, mental health experts, educationalists, sociologists—are beginning to suggest that when kids stop going out into the natural world to play, it can affect not just their development as individuals, but society as a whole.

A. their love for nature
B. their care for nature’s survival
C. the development of their individuality
D. their development and the society

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In an age of cable TV, Nintendos (任天堂游戏机), Facebook and YouTube, is it actually important to be able to tell the species of one flower from another Well, it obviously can’t do any harm to know a bit about the natural world beyond the screen and the front door. And if, as a result of that, you develop a love for nature, you may care something for its survival, which is probably no bad thing.
But a growing body of evidence is starting to show that it’s not so much what children know about nature that’s important, as what happens to them when they are in nature (and not just in it, but in it by themselves, without grownups ). Respectable scientists—doctors, mental health experts, educationalists, sociologists—are beginning to suggest that when kids stop going out into the natural world to play, it can affect not just their development as individuals, but society as a whole.

A. Technology obviously is not the reason that leads to children’s "nature deficit disorder".
B. Ordinary young Americans spend a lot of time "using entertainment media" nowadays.
C. something "very profound" has happened to children’s relationship with nature recently.
D. Now fewer children are experiencing nature directly, on their own or with their friends.

[单项选择]Why don’t we need as many teeth as our ancestors
A. Because we have to deal with much food
B. Because we eat much softer food.
C. Because we eat tough gritty food.
D. Because our ancestors ate much softer food.

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The reasons why people engage in DIY have always been numerous and complex. For some, DIY has provided a rare opportunity for creativity and self-expression. For others it has been an unwelcome necessity, driven purely by economic considerations. Then there has been a group which feels that a building can never be a home unless it has been altered and modified to reflect a change of occupancy. A final group has traditionally taken the line that if you want a job done well, you must do it yourself.
The same four basic species of DIYers exist today, although these various motives may now overlap very substantially. The perfectionist in search of the good job done well is often also driven by a desire for creativity. There are also two new categories of motive — the pursuit of DIY as a leisure activity and DIY as a form of occupational therapy. These, again, overlap with other reasons.
DIY as necessityA. It is the final option they would choose.
B. It is as challenging as renting a house.
C. It costs more money than renting a home.
D. It costs even more than food and drinks.