英语四级写作：教科书有益的特征

英语自学网

　　Write a passage with the words given: textbooks, school, levels, kinds,
purpose, learn, therefore, features, information, contents, parts, page,
understand, divide, sections, finally,index, alphabetical, most, help, quickly,
efficiently. The Helpful Features of Textbooks
        　　Textbooks are books that students use in school. Students at all levels and
in all kinds of schools use textbooks. They have certain features in
common――features that help us find and understand the information in them.
        　　Textbooks have tables of contents at the beginning. The tables of contents
list the chapter titles, the parts of the chapters, and the page numbers of the
parts. These sections are divided again into smaller parts with headings and
subheadings. Finally, most textbooks have an index at the back of the book. The
index lists all the topics in the book in alphabetical order, and gives their
page numbers.
        　　These are the features of most of the books. All of these features,
chapters and chapter divisions, and indexes help us find and understand the
information in textbooks quickly and efficiently.