UnitSearchEngine.pptVIP

Unit 9 Search Engine The Key to Exercises: Reading comprehension 2 (1) Some site visitors are recommended by friends, some are referred by other Web sites, some see the site’s URL in a print advertisement or on television, others arrive after typing a URL that is similar to the company’s name. But many site visitors are guided to the site by a search engine. (2) A search engine contains a spider, an index and a search utility The Key to Exercises: Vocabulary A5 B2 C3 D6 E7 F1 G4 The Key to Exercises: Reading Material 1.B 2.A 3.D 4.C 5.C * * ? Warm-up ? Background Information ? Word Study Text Analysis ? Exercises Warm-up Three famous search engines are as follows: ? Which one of the search engines impressed you most? Why? ?List other search engines which you are familiar with. Background Information SEO (search engine optimization)即有哪些信誉好的足球投注网站引擎优化，主要是通过对网站的结构和内容等方面的优化，使有哪些信誉好的足球投注网站引擎更容易有哪些信誉好的足球投注网站网站的 内容，并且使网站的各 个网页在有哪些信誉好的足球投注网站引擎中获 得较高的评分，从而获 得较好的排名。从事这 方面工作的人就是search engine optimizer，即有哪些信誉好的足球投注网站 引擎优化师。 The life span of a Google query normally lasts less than half a second, yet involves a number of different steps that must be completed before results can be delivered to a person seeking information. The main steps are as follows: Background Information Text Analysis Principles and Optimization of Search Engine Potential customers find Web sites in many different ways. Some site visitors are recommended by friends, some are referred by other Web sites, some see the site’s URL in a print advertisement or on television, and others arrive after typing a URL that is similar to the company’s name. (译文) But many site visitors are guided to the site by a search engine. Text Analysis Principles of Search Engine A search engine is a Web site that helps people to find things on the Web. It contains three major parts. The first part, called a spider, a crawler, or a robot, is a program that automatically searches the Web to find Web pages that might