Unit One The Things Unknown to You Reading Selection Language Structure Practice and Improvement Communication Function Practical Writing Unit Two Fight Againt AIDS Reading Selection Language Structure Practice and Improvement Communication Function Practical Writing Unit Three Energy Sense Makes Future Sense Reading Selection Language Structure Practice and Improvement Communication Function Practical Writing Unit Four The Cloning Technology Reading Selection Language Structure Practice and Improvement Communication Function Practical Writing Revision I Unit Five Advertising and Advertisements Reading Selection Language Structure Practice and Improvement Communication Function Practical Writing Unit Six Computers Concerning You Reading Selection Language Structure Practice and Improvement Communication Function Practical Writing Unit Seven The Internet Concerning You Reading Selection Language Structure Practice and Improvement Communication Function Practical Writing Unit Eight International Trade Reading Selection Language Structure Practice and Improvement Communication Function Practical Writing Revision II Appendixes Appendixes I Glossary Appendixes II Idioms and Expressions
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