Unit 5 Listening and Speaking ppt课件-（2019）新外研版高中英语选择性必修第四册.pptx

1、B4U5 Listening and SpeakingInto the unknown理解探索未知话题理解探索未知话题理解和思考探究探索理解和思考探究探索未知话题未知话题表达表达: :探索未知话题探索未知话题starting out starting out 第第1 1课时课时Using lanaguage Using lanaguage 第第3 3课时课时Listening: The Listening: The mystery of human mystery of human brainbrain第第4 4课时课时Understanding ideasUnderstanding idea

2、sThe Mysteries of the The Mysteries of the MayaMaya第第2 2课时课时Developing ideasDeveloping ideasDiving DeepDiving Deep第第5 5课时课时Writing :Writing :The The unexplainedunexplained第第6 6课课时时Presenting ideasPresenting ideas第第7 7课时课时单元大观念单元大观念:理解表达探索未知话题理解表达探索未知话题，培养学生科学求真的精神，引，培养学生科学求真的精神，引导学生积极探索未知，加深其对人类命运共同

3、体的认识。导学生积极探索未知，加深其对人类命运共同体的认识。 Grasp some basic facts and the current research situation about the brain; Figure out the topic discussed in the interview and fill in the table by taking notes while listening; Sort out the expressions concerning investigations used in the interview and apply them to

4、conversations; Ignite the desire to dig out more scientific mysteries and form the habit of sleeping early.Learning ObjectivesRead the passage and answer the questions What functions of the brain are mentioned in the passage? What is the current research situation concerning the brain? Do you know a

5、ny other interesting facts about the brain? Share them with the class. What functions of the brain are mentioned in the passage? What is the current research situation concerning the brain? Do you know any other interesting facts about the brain? Share them with the class.The brain functions mention

6、ed include its being the centre of the nervous system and controlling most of the bodys activities, including vision memory, speech and rhythm.There is still a long way to go before we can completely understand the workings of the brain.1. Lead-in Watch the video and think about the questionsWhat ar

7、e the benefits of sleep?What are the sides effects for lack of sleep?1. Lead-in Watch the video and think about the questions What are the benefits of sleep? What are the sides effects for lack of sleep?Processing information Consolidating memoriesLetting the brain do all the rewiringDoing worse whe

8、n learning new tasksBeing less able to process new informationGood nights rest makes us more creative.You can click here to enter your text. You can click here to enter your text. ADD TITLE2. Listen to the interview and choose the topic discussed1 Methods of keep the brain healthy and active2 Sleep-

9、related mysteries3 Ways of improving sleep quality4 Methods of interpreting dreams 3. Listen again and complete the table TheoriesDr. Longs comments The brain needs time to 1_Recent studies prove that our brains 2_during sleep.The brain 3_ when were awake. It needs sleep to 4_There isnt 5_ to confir

10、m this. It might not be 6_ for sleep.7_ in the brain while were awake, and the brain reflects on them and 8_in our dreams.A lot of research has been conducted, but we still cant prove that 9_Other unanswered questionsWhy do we “see” our dreams?10_ 3. Listen again and complete the table TheoriesDr. L

11、ongs comments The brain needs time to 1_Recent studies prove that our brains 2_during sleep.The brain 3_ when were awake. It needs sleep to 4_There isnt 5_ to confirm this. It might not be 6_ for sleep.7_ in the brain while were awake, and the brain reflects on them and 8_in our dreams.A lot of rese

12、arch has been conducted, but we still cant prove that 9_Other unanswered questionsWhy do we “see” our dreams?10_rest and do maintenanceremain activemakes lots of poisonous chemicals remove these chemicalsenough datathe most important reasonNew connections are formed between different partsuse them t

13、o form new memoriessleep is necessary to this functionWhy do some people dream in color and others dont?Possible difficult words from the interviewmaintenance n. the act of keeping sth. in good condition by checking or rapairing it regularly.chemical n. a substance obtained by or used in a chemical

14、process.adj. connected with chemistry. poisonous adj. causing death or illness if swallowed or absorbed into the bodyremove v. to get rid of sth. unpleasant, dirty, etc.; to make sth. disappear. Now use the information in the former table to give a lecture about sleep-related mysteries to the class.

15、 Do further research if necessary. 4. Individual Work: Deliver a speech5. Complete the boxes with the expressions from the interview Could you tell us something about.? What other reasons could there be for it? Would you tell us more about.? Its because. .prove that.Asking for more informationExplai

16、ning5. Complete the boxes with the expressions from the interview Could you tell us something about.? What other reasons could there be for it? Would you tell us more about.? Its because. .prove that.Asking for more informationExplainingCould you tell us something about.?What other reasons could the

17、re be for it?Would you tell us more about.?Its because.prove that. Students play as different roles and conduct an interview with an archaeologist(考古学家) to uncover the myth why dinosaurs disappeared from the earth by using the words and expressions in this section. 6. Group Work-Role PlayCould you t

18、ell us something about.?What other reasons could there be for it?Would you tell us more about.?Its because.prove that.(You can add much more.)Interview Time7. Homework: writing an essay Nowadays lots of people stay up late due to overloaded work, electronics obsession, depression or insomnia, etc. P

19、lease write an essay to appeal for good sleep and share your ideas about how to obtain high quality sleep. 8. Self-assessment Self-assessmentAgreePartly AgreeDisagree1. I can understand some basic facts about the brain. 2. I can figure out the topic discussed in the interview and fill in the table b

20、y taking notes while listening. 3. I can sort out the expressions concerning investigations used in the interview and apply them to conversations . 4. I am motivated to dig out more scientific mysteries and determined to form the habit of sleeping early . 5. Was I active in group work? 6. What do I need to improve in the future?_Thank you