人教版九年級英語下冊nit9Whenwasitinvented.SectionB教案3

1、unit 9 when was it invented ? the second period sbfunctions：talk about the history of inventionsknowledge goals: learn the new words and phrases：salty, sweet, sour, crispy, pleasant, potato chips, leaf, fire, beverage, be invented by, be used for, by mistake, by accidentlearn the grammar: passive vo

2、ice. ability goals: ss can use the target language to talk about the history of inventions. emotion goal: help ss to learn the history of inventions and stimulate students creative abilities. teaching difficult points: passive voice, the past participle of irregular verbsstep one: lead-infree talk 1

3、. whats your favorite food, fruit and drink? 2. how does it taste? can you describe?step two: presentation(1a)use the words in the box to describe how food tastes. write them under the correct pictures.(1b)write the name of a different food after each word.step three: listening practice (the history

4、 of potato chips)1. how do you like potato chips?2. do you know how they were invented?(2a) listen and circle “t” or “f”.(2b) listen again and complete the sentences.step four: reading practicepre-reading1. whats the most popular drink in china?2. do you know who invented tea?read through the passag

5、e in 3a to find out the answers to the questions that are under the passage.1.what is the article about?2. when was it invented? 3. who was it invented by? 4. how was it invented?brief introduction about the emperor shen nongread carefully and then finish the mind-map.read aloud together and then pu

6、t the missing words back.step five : assignmentrecite the passage 3a and finish the exercise 4a on page 72 . finish off the exercises in section bthe invention of teawhat is tea?the most popular _ in the world after _.when was it invented?was discovered over _ years before _who was it invented by?th

7、e emperor _.how was it invented?by _ was _ drinking water over an open _ some leaves _ the water and _there for _the leaves in the water _ a _ smell.decided to _ the hot _tasted _ the invention of teawhat is tea?the most popular _ in the world after _.when was it invented?was discovered over _ years

8、 before _who was it invented by?the emperor _.how was it invented?by _ was _ drinking water over an open _ some leaves _ the water and _there for _the leaves in the water _ a _ smell.decided to _ the hot _tasted _ the invention of teawhat is tea?the most popular _ in the world after _.when was it invented?was discovered over _ years before _who was it invented by?the emperor _.how was it invented?by _ was _ drin