北师大版高中英语必修5Unit15教案Lesson 4.doc

lesson 4 understandingobjectivesto practise using linking and reference words to help understand a text.to practise using adverbs.to make students know how to gain knowledge.teaching difficulties:to enable students to use the phrasal verbsto practise using linking and reference words to help understand the text.i. warming upquestion students: by what ways do we acquire knowledge?reading bookswatching tvgoing through the internetlearning from teachers or friendslistening to radioii. pre-reading1. can you think of the process/way to gain/understand knowledge?2. which of these things help you to understand things?1) being relaxed and happy 2) having time to think about what you are learning3) being interested in the topic4) discussing topics with friends5) asking questions3. will you completely believe in what your teachers said? what about the great scientist? will you fully believe in them?we have our understanding about things, but we are always affected by the authorities and lose our thoughts. it seems that not all that the great people said is correct.do you believe the following sentences said by the great?knowledge is power. truth is the daughter of time, not of authority. all truths are easy to understand once they are discovered; the point is to discover themearth must be the centre of the universe because it felt like the earth was standing stillearth must be the centre of the universe because it felt like the earth was standing stilliii. reading (i).read the text and answer the following questions.1) does the writer believe that the baconian method of scientific thought is a good way to gain knowledge?2) what image does the writer use to explain how men like bacon and galileo helped educate people?3) why did aristotle assume that the sun moved around the earth?4) would the writer describe the people of the church during galileos time as having open or closed minds?5) do you think people like bacon and galileo would have thought it was a good idea to open libraries and set up universities? why?(ii).read texts 1-4which of the underlined linking words mean the same as these?example as = whenafterwards, but, since, so he could, so, to start with, when, next(). vocabulary: words about learning, ex.5(). complete the sentences with the correct form of the words below. ex.6iv. language points1. to start with: to begin with. (= at first 为一独立成分，置句首) eg.to start with, we must consider the faculties of the staff all-sidedly.2. be accustomed to: vt. = be used tomany girls are accustomed to playing with their hair while reading he has been in london for two years,and should be accustomed by now to eating english food3. spit out: vt. 吐出， 喷出a volcano was spitting out smoke and ash for three days.4.were often punished by the church with no one coming to their defence.with + n./pron. + v-ing/-ed/ adj./adv./prep./ to do 这一结构主要是用来作状语，间或也作定语。(1) with so many people looking at her, she felt nervous.(2) with their work finished, they went home.(3) with so much work to do, i cant go swimming with you.(4) she stood at the door, with her back towards us.(5) he entered the room, with his nose red with cold.(6) a little boy with two of his front teeth missing ran into the house. 注：此结构作定语时可转换成whose引导的定语从句。a little boy whose two front teeth were missing ran into the house. 5. tend to do sth. vt. 趋向于，往往会1) his views tend to the extreme. 他的观点趋于偏激。2) women tend to live longer than men.3) people under pressure tend to tap（发挥） all their potential.6. base on / be based on vt. 建立在基础之上，以为基础our quality is based mainly on our sales samples.these charges(控诉)are based on facts. 7. put forward vt. 提出he put forward a constructive suggestion. everybody put forward his opinion on the disputed case. 8. at times adv. 有时,不时memories are improved by going over at times. 9. be known as vt. 被称作为mr. ward is known as a great painter. 10. due to prep. 由于，因为; be due to do sth. 预定his success was due to his hard work.they are due to arrive in seattle on march the second. v. after-readingdo exercises after reading:(i). ex.5. read the text and answer the following questions.answers:1) yes. she says it is lucky that scientists and thinkers are still using this method today.2) she uses images of shadows, kingdoms, war and money. she says, “step out from the shadows of conventional thought and into the kingdom of knowledge”and “knowledge and understanding are things to fight for; more vital to man, some might say, than all the money in the world.”3) he assumed the sun moved around the earth because it felt like the earth was standing still while the sun moved through the sky.4) the writer would describe them as having closed minds.5) yes. because libraries and universities are the places in which people can acquire the knowledge and understanding of the world.(ii). ex.3. answers: however=but; later=afterwards; in order to=so he could; therefore=so; because=since; at first=to start with; as=when(iii). ex.4. find the words referred to by the words in italics.answers:2. this - considering possible answers to questions and finding the right ones3. he - francis bacon4. they - francis and many people5. their - francis and galileo6. they - people7. him - galileo galilei8. it - something9. he - galileo galilei10. these - francis bacon and galileovi. vocabulary: words about learningstudents are required to finish off the exercises on their own.do ex. 6. answers: 1. observe2. acquire3. experiment4. solve5. test6. consider7. challenge8. inspiredo ex.7. complete the se