题目

富氧燃烧技术中，用氧气含量高于21%的富氧空气支持燃烧，能起到节能和减少碳排放的作用。富氧燃烧的产物中CO2的含量可达到95%，有助于CO2回收利用。该技术的主要流程如下： （1） 空气分离的过程中发生的是物理变化，图中其它气体的主要成分是。 （2） 该流程中涉及的物质中，属于氧化物的是（写出一种即可）。 Reading newspapers has become an important part of everyday life. Some people read newspapers as the first thing to do in the morning. Others read them as soon as they have free time during the day so that they learn what is （发生）in the world. Sometimes we are so busy that we don't have any time to read all the news. So we just take a quick look at the front page. At other times, we may be in such a hurry that we often have a few minutes to look at the names of the passages. (1) 我们在世界各地都能找到报纸。 We can get many kinds of newspapers in big cities, but in some mountain villages we can see few newspapers. Some newspapers are published（出版）once a week, but most of the papers are published once a day with many pages, some even published twice a day. You know different people enjoy reading different newspapers, some like world news, and others prefer short stories. They only choose what they like.(2) Everyday newspapers in English have the largest number of readers in the world. The English page is so popular that many Chinese students are reading English newspapers such as China Daily or 21st Century. They bring us more and more messages together with the Internet.1.将(1)句译成英语。 2.将(2)句译成汉语。 3.根据上下文，在文中空白处各填入一个适当的词语，使之完整。 、 4.在文中找出此句的同义句：we are too busy to have time to read all the news at times． 5.找出全文的主题句。