给这么高的分,我来认真帮你改一下吧：）我打（）的地方是改动过的.
[]的地方是我没看懂的.
1.（Today）,（due) to the science and technology (development), human being are (entering into a) new era. Many media (are providing) multifarious information and knowledge to people, such as book, television and theatre. But these (） media have many advantages and disadvantages.
2.(Book) is one of （the) prime (modes for) human being (to obtain) knowledge, and (book has always been people's) best friend. (Comparing) book with other media, (it is clear that book can not be substituted). But, it (has some disadvantages compared) with others. For example, (books are made of) paper, and (paper consume a lot of trees). (According to) a number of recent studies, (one tree absorbs 3000m³CO2 a) year, and (produces) 3000m³ O2. We (need to think about how many trees were consumed to make a book and what is the value of these trees to our environment).
3.(Next, let's look at )theatre, many countries have (various types of) (theatres), such as Beijing opera representative kinds of Chinese theatre. Bunraku is Japanese theatre, and
Italy theatre is (a representation) of European’s culture. These (theatres) [were provided that we know a best mode of nation and they were harvest of all people](中括号里的英文我不太明白,所以没改）. But （compared with book and television), it has many (disadvantages), for instance, we must spend (long) time (sitting in the threatre to) enjoy it.
4.From a number of Economist studies, the television is becoming (the most important mode) of people’s media. It (brings) more convenience since (its) birth. [It more than message with others](这句也没明白是什么意思）, we (can) watch TV when we (laying in) bed and (drinking) Coca-Cola. But television (has) many (disadvantages also), such as, it (harms children's) eyes when (they) watch TV (for too long) and it (also has) many (other) unhealthy (aspects which) will harm (children's) mentality.
5.All in all, ()various media have (various advantages and disadvantages), we must (maximize their advantages) and (minimize) their (disadvantages). In this way, (all media will be) good (friends) of human being.
建议将第四段和第三段掉换位置,因为第三段提到了书和电视这两个媒体,而按照现在的顺序在讲第三段的时候还文章没涉及到电视,感觉有点突兀.还有问题你可以直接与我联系.希望能够帮到你：-）