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选择性必修二《Unit 3 Food and Culture》Discovering useful structures优秀教案
The past perfect tense and its passive voice
The main grammatical items in this unit are the past perfect active and passive tense.The past perfect tense is used to refer to an action that was completed before a time or event in the past.The past perfect passive voice is the passive form of the past perfect tense. The teacher can guide the students to analyze and compare the structure and usage of the past perfect tense and the passive tense. The teacher is also highly recommended to help the students to sort out the relevant content in the form of a chart, or present a chart for the students to complete the key information.
Enable the students to tell the same information using the past perfect active tense and the passive tense.
Guide the students to use the two constructions correctly, and understand their meaning and function in the context.
Encourage the students to make sentences using the past perfect active and passive tense. Then use these sentences to make dialogues.
Cultivate students’ thinking ability and enhance their creativity of using this grammar.
1. Guide students to use the two structures both in the spoken and written situation.
2. Encourage the students to make sentences, using the past perfect active and passive tense. Then use these sentences to make dialogues.
Step1: Lead in
What is the tense and voice of the following sentence? what is the function?
By the time the tornado ended, more than 700 people had been killed.
Keys: the passive voice of the past perfect tense.
function: The past perfect tense is used to refer to an action or a state of being that occurred or was completed before a specific time in the past.
Step 2:Try to find out all the sentences containing the passive voice of the past perfect tense and then sum up their common rules.
教材原句：
Prior to coming to China, my only experience with Chinese cooking was in America, with Chinese food that had been changed to suit American tastes.
在来中国之前，我唯一接触过中国烹饪的经历是在美国，我接触过经过改变以适应美国人口味的中国食物。
2. When my family and I had just arrived in China, we went looking for a good place to eat in Beijing.
当我和家人刚到中国时，我们在北京找了一个吃饭的好地方。
3. A restaurant had been recommended to us by a friend, and finally, we found it.