—Yes．I've got____(几个)friends here．

随着社会的进步与发展，能源与环境问题日益受到人们的关注和重视，请回答下列问题：

（1）汽油和柴油主要是由 ____炼制的产品；

（2）为了减少汽车尾气对空气的污染，部分汽车改用压缩天然气做燃料，请写出天然气主要成分燃烧的化学方程式　 ____；

（3）化石燃料对环境的影响不容忽视，开发和利用新能源成为迫切的要求，目前人们正在开发和利用的新能源之一是 ____．

读下面一段文字，完成文后练习。
       在以后的日子里，国王经常召见我，有一天，我直言不讳地对他说，他对欧洲及世界其他地方的鄙视，与他超人的智慧不太相称。人不是躯体大头脑就聪明，相反，在动物世界中，蜜蜂、蚂蚁的勤劳、技能和名声都远远超过了一些大动物。国王聚精会神地听我说话，听着听着，渐渐开始对我产生了好感。他要我尽可能详实地说说英国政府的情况，看看其中有什么值得他效仿的。

    Millions of people across the world have pets. Maybe you have one and maybe some of your friends do too. A pet can be ____ special friend, and you may think of him or her as a member of the family. A pet can play with you or just be with you when you don't feel like ____ (talk).

    ____ (unlucky), pets can't stay with ____ (we) forever. Like all living things, they will die. Sometimes a pet dies because he or she is too old. Sometimes a pet dies ____ an accident. Sometimes a pet gets too sick ____ (live) longer. Even when an animal doctor helps, there are some problems mat just can't ____ (solve).

    It's a sad thing to know a pet dies. You probably feel lonely ____ it seems like you lose a friend. You may even feel mad at the vet (兽医) for not being able to make your pet ____ (well) than it was. Maybe you feel sorry when you remember the fact that sometimes you weren't kind to your pet.

    To some children, it may seem like nobody ____ (understand) what they are feeling. Someone may say to a girl, "You can get another cat." But she knows she will never have a cat just like the dead one.