... 2 in the work book. W Unit 16: Inventions. Period 99: Lesson 2: Speak I. Objectives: -After the lesson Ss will be able to get acquainted with the inventions: facsimile, microphone, ... the inventions. Others read the inventors. 4. Consolidation: -Ask ss to retell the inventions and the inventors. 5. Home work : -Ask ss to do the exercise 2 in the work book. W Unit 16: ... -Ask ss to work in pairs to practice asking and answering the questions to fill in the table the inventions, names, and the nationalities When was laser invented? What was invented by D.E...