How does it work? Ofloxacin belongs to a group of broad spectrum antibiotics called the quinolones. It works by entering the bacterial cell and inhibiting a chemical called DNA-gyrase which is involved in the production of genetic material (DNA). This therefore prevents the bacteria from reproducing

• Lead-in Activities • Text Organization • Reading and Writing Skills • Language Points • Guided Practice • Assignment

• Lead-in Activities • Text Organization • Reading and Writing Skills • Language Points • Guided Practice • Assignment

• Pre-Reading Activities • Intensive Study • Exercises • Assignment

成都信息工程大学（成都信工学院）：《大学英语》PPT教学课件（第四册）Unit4 America as a Collage

Text A: fantasy, suspicion, injection, deputy, considerate, restore, estate, fantastic, multiple, furnish, deceive, commission, substantial, arrest, motive, justify exceeding, swear, disguise, switch e Text B: romantics, mysterious, e it, sigh, simplify, standpoint, heave, shiver, 2. Key phrases and expressions Text A: raise a glass to, turn out, buy up, live out, add on, fix up, sell sth at a loss Text B: read about, for one thing, in the night, make an appointment, switch on, raise the devil answer the door. stare after 3. Key structures

Text A The Nightmare and The Dreams Part 1 Objectives Part 2 Background Part 3 Language Points

Text A Smart Cars Part 1 Objectives Part 2 Background Part 3 Structure Study LR Part 4 Language Points

Text A Tony Trivisonno's American Dream Part 1 Obiectives Part Discussion Questions Part3 Background Part 4 Text Structure Part Lanquage Points

• Revision of Text A • Text B • Listening Practice • Assignment