阅读短文，回答问题：

汽车在高速行驶过程中一旦发生碰撞，车身停止，而乘员则会继续向前与车身撞击，甚至能把挡风玻璃撞碎而飞出车外．在发生交通事故时，安全带能对人体起到缓冲的作用，防止出现二次伤害．在发生严重撞击时，方向盘等处的车载气囊会自动充气弹出，在人体接触到安全气囊时，安全气囊通过气囊表面的气孔开始排气，从而起到缓冲作用，减轻身体所受冲击力，大大减小伤害．

（1）汽车“发动机”通常都是以汽油或柴油为燃料的，汽油、柴油都属于____ （可再生/不可再生）能源；汽车“发动机”一般需要用水来作冷却剂，这是利用了水的____ 的属性．

（2）一辆汽车沿一平直公路匀速行驶30km，消耗了2kg汽油，该汽车与路面间的摩擦力为690N，则此过程中汽油完全燃烧放出的热量为____ J，该汽车“发动机”的效率为____ ．（汽油的热值为4.6×10⁷J/kg）

（3）汽油机是汽车的“心脏”，汽油机的____ 冲程将内能转化为机械能．

（4）对于短文中提到的“缓冲”，小华同学提出了自己的猜想：安全带和安全气囊增加人与碰撞物间的接触时间，从而大大减小撞击力．物理兴趣小组的同学共同设计了如下实验方案：在两个相同的玻璃槽中堆放不同厚度的面粉，用同一只鸡蛋从相同的高度先落在面粉厚度大的槽中，留下较深的坑，鸡蛋完好无损；后落在面粉厚度较小槽中，鸡蛋破裂．实验中通过比较____ 来比较撞击时间的长短，根据实验可以验证小华同学的猜想是____ （正确/错误）的．请列举上述“缓冲”的物理知识在生活中应用的一个实例：____ 

求：

    Welcome to your future life!

    You get up in the morning and look into the mirror. Your face is firm and young-looking. In 2035, medical technology is better than ever. Many people your age could live to be 150, so at 40, you're not old at all. And your parents just had an anti-aging(抗衰老的) treatment. Now, all three of look the same age!

    You say to your shirt, “Turn red.” It changes from blue to red. In 2035, “smart clothes” contain particles(粒子) much smaller than the cells in your body. The particles can be programmed to change clothes' color or pattern.

    You walk into the kitchen. You pick up the milk, but a voice says,“ You shouldn't drink that!” Your fridge has read the chip (芯片) that contains information about the milk , and it knows the milk is old . In 2035, every article of food in the grocery store has such a chip.

    It's time to go to work. In 2035, cars drive themselves. Just tell your “smart car” where to go. On the way, you can call a friend using your jacket sleeve. Such “smart technology” is all around you.

    So will all these things come true? “For new technology to succeed,” says scientist Andrew Zolli ,”it has to be so much better that it replaces what we have already.” The Internet is one example—what will be the next?

根据短文理解选择正确答案。

If music makes you smarter and exercise helps you to think, surely exercising to music can turn you into a clever person.

A team of scientists from Ohio State University did experiments on 33 volunteers who were getting better from heart disease after operations. They found those volunteers who exercised while listening to Italian musician Antonio Vivaldi's The Four Seasons did much better on language ability tests than without music. It is also used in medical fields for patients who have had head hurts because of its moderate tempo (舒缓的节拍).

“Exercise seems to cause positive changes in the nerve (神经) system and these changes may improve the learning ability of people with heart disease,” said the psychologist Charles Emery, who led the study. “And listening to music is thought to enhance understanding. We just wanted to put the two results together,” he added.

The volunteers said they felt better emotionally and physically after exercising with or without music. But their improvement on the test doubled after listening to music during exercise. Scientists have proved that music can be good for health and education. It helps reduce stress and sadness, encourage relaxation or sleep, wake up the body and improve memory and thoughts.

Scientists have been studying the results of exercise to music on learning and understanding since the early 1950s. A study showed that students who listened to Mozart's violin pieces and exercised went on to get higher marks in an IQ test. With important exams drawing near, your parents will not probably allow you to listen to music or play sports. But perhaps now you have good reasons to argue with them.

青釉提梁倒灌壶（见图）为五代时期耀州窑器皿中罕见的珍品文物。设计独具匠心、巧夺天工、科技含量极高。古代工匠利用了连通器液面等高的原理，壶盖与器身连为一体，梅花形注水口设于壶底中央，壶内有漏柱与水相隔，灌水时将壶倒置，待盛满后，将壶放正，滴水不漏。它体现出（    ）

①中华文化源远流长、博大精深

②中华民族富有创造力

③中国的科学技术成就始终处于世界前列

④中华民族的精神向往和美好追求