Unit 3 Inventors and Inventions Grammar---教案Teaching Goals: 1.To get Ss to have knowledge of this grammar point: the past participle used as attribute, predicative and object complement.2. To enable Ss to know the differences between the past participle and v–ing formTeaching Procedures:Step 1. Presentation Introduce information about some inventions and discoveries using sentences in passive participle. Guide Ss to say the words which are highlighted .Show some related pictures.1.This is the telephone designed in the early time.2.Stephenson’s “Rocket” was the enginedesignedfor the railways by George Stephenson3. The structure of DNA was a discovery of Francis Crick and James Watson published in 1953.4. The colour television invented in 1940 made our life more colorful.5. I was excited at the new invention.6. His new invention made all of us surprised.Step 2. Individual workGet Ss to find out the past participle used as attribute, predicative and object complement in the reading text.Part1 Line 1: When I called up my mother in the countryside on the telephone she was very upset.Part2 Line 1: The first thing I tried to do was to see if there were Products that might help me, but there only seemed to be powders designed to kill snakes..Part4 Line 1: I placed the frozen bowl over the snakes habitat and the ice-cubes on top of the bowl from the machine.Part6 Line 1: The next morning I carried in my hand a small net used for catching fish. Step 3. Grammar pointPurpose: To get Ss to know about the past participle.1. Get Ss to complete the sentences and know about the past participle (1) The (.破损的碗)will be thrown at once..= The bottle which was broken will be will be thrown at once..(2...