金元外交

Why Is Exercise Cool?

Exercise strengthens Muscles

Did you ever do a push-up or swing across the monkey bars at the playground? 小题1:  By using your muscles to do powerful things, you can make them stronger. For older teens and adults, this kind of workout can make muscles bigger, too.

小题2:  

Can you touch your toes easily without yelling ouch? Most kids are pretty flexible, which means that they can bend and stretch their bodies without much trouble. Being flexible is having “full range of motion” , which means you can move your arms and legs freely without feeling tightness or pain.

Exercise Keeps the Balance

小题3:  Your body needs a certain amount of calories every day just to function, breathe, walk around, and do all the basic stuff. 小题4:  If you’re not very active, your body won’t need as many calories. Whatever your calorie need is, if you eat enough to meet that need, your body weight will stay about the same. If you eat more calories than your body needs, it may be stored as extra fat.

Exercise Makes You Feel Good

It feels good to have a strong, flexible body that can do all the activities you enjoy---like running, jumping, and playing with your friends. It’s also fun to be good at something, like scoring a basket, hitting a home run, or perfecting a dive.

But you may not know that exercising can actually put you in a better mood. 小题5:  It’s just another reason why exercise is cool!

A．So you want to do some aerobic(有氧的) exercise right now?

B．Food gives your body fuel in the form of calories, which are a kind of energy.

C．When you exercise, your brain releases a chemical, which may make you feel happier.

D．Those are exercises that can build strength.E. Exercise Makes You Flexible

F. Exercise Makes Your Heart Happy

G. But if you’re active, your body needs an extra measure of calories or energy.

均衡原理是从估价对象内部组成要素，适合原理是从估价对象外部环境来判断估价对象是否为最高最佳使用的两种方法。（）

同等容量下，燃气轮机的出力调节速度（）于蒸汽轮机。

A.快

B.慢

C.等

D.不确定

测溶解氧的氨性靛蓝二磺酸钠缓冲溶液时，放置时间不得超过（）小时，否则应重新配制。

A、24；

B、12；

C、8。

多元文化的交流与碰撞对文明的发展有重要作用。习 * * * * 在出访俄罗斯谈到中俄的文化交流时曾说：孔子、老子等中国古代思想家为俄罗斯人民所熟悉，很多中国人也深受俄罗斯文化影响。他就曾在普希金、托尔斯泰、契诃夫等文学巨匠的作品中感受到了俄罗斯文学的魅力。阅读材料，运用《文化生活》中的知识，说明为什么不同文化之间需要交流。