1“膝上型電腦”，按其設計，應是足夠輕便，便于攜帶。

2 一個穿著隨便、外表和談吐都像阿拉伯人的男子5點左右離開了酒店。

3他們簽定了兩個協定，目的是使兩國之間的關系升溫。

4 如果說因特網是一本書，那么因特網指南就是目錄。指南按照相關的類別或題目組織網址，就像一本書的目錄對章節(jié)進行分類組織一樣。當然，因特網這本書太大了，以至于目錄本身也需要自己的目錄。因此大部分因特網指南從最高級的類別開始，然后讓你“深鉆”到越來越具體的題目。

1. Laptop computers are designed to be light enough so that they can be carried along fairly easily.

2. A casually-dressed man, who looked and talked like an Arab, left the hotel around 5 o’clock.

3. They signed two agreements that served to warm up the relationship between their two countries.

4. If the Internet were a book, Internet Guides would be the table of contents. They organize web sites into related categories or topics, just like a table of contents organizes the chapters in a book into different sections. Of course, in the case of the Internet, the “book” is so big that even the table of contents needs its own table of contents. That’s why most Internet Guides start with top-level categories and let you “drill down” to more and more specific topics.