资源简介 (共29张PPT)Unit 4 Scientists who changed the worldThe Value of ScienceThe Value of ScienceWho is Richard Feynman American physicist Richard Feynman (1918-1988) predicted the future of nanotechnology (纳米技术), and improved the scientific understanding of the nature of waves and particles and the interactions of light and matter. He won Nobel Prize in Physics in 1965.The Value of ScienceWho is Richard Feynman “Science is the belief in the ignorance of experts.”“I would rather have questions that can't be answered than answers that can't be questioned.”Para. 1-2What question is raised What caused the speaker’s concern about question Value 1: enable people to do and make all kinds of thingsWhat should we give credit for if we make good things Scientific knowledge is an enabling power to do either good or bad—but it does not carry instructions on how to apply it.How is this value related to the author’s atomic bomb inventing experience Value 2: provide us with intellectual enjoymentcircle out words to show the enjoymentWith more knowledge comes a deeper, more wonderful mystery, inspiring one to look deeper still.Never concerned that the answer may let us down, with pleasure and confidence we turn over...Value 3:ignorantdoubtuncertaintyHow does the author explain the three concept(概念) Value 3:(L27) When a scientist doesn’t know the answer to a problem, he is ignorant. When he has an idea as to what the result is, he is uncertain. And when he is pretty sure of what the result is going to be, he is still in some doubt.What is the speaker’s attitude to the “ignorance” and “doubt” Value 3:Which word appears the most in the last three paragraphs What kind of freedom is stressed for scientists enjoy the freedom to doubtExpressionsP53it represented the destruction of peopleput … at riskbe involved in …put another waybe of valuebe to the credit of scienceScientific knowledge is an enabling power to do either good or bad.carry instructions on how to apply itbe negated by…intellectual enjoymentWith more knowledge comes a deeper, more wonderful mystery, inspiring one to look deeper still.Never __________(concern) that the answer may let us downfind unimagined strangenessA lot of experience with ignorance and doubt and uncertainty.take it for granted (that …)Our freedom to doubt was born out of a deep and strong struggle against authority.Recognize our ignorance and leave room for doubt.Permit us to question-to doubt-to not be sure.concernedIt is our responsibility as scientists to declare the value of this freedom; to teach how doubt is not to be feared but to be welcomed and discussed; and to demand this freedom as our duty to all coming generations.Focusinvolvecreditapplyauthorityinvolve2. to affect someone or somethingThese changes will involve everyone on the list.There was an incident involving a group of youths.He was involved in that crime.* be/get involved in … 被卷入involveTo include something as a necessary part 包含;需要Any investment involves risks.The course involves a large amount of work.Running your own business involves working long hours.* involve doingHousework involves cooking, washing dished and cleaning.Most people don't realize the amount of effort ________ (involve) in writing a novel.involvedinvolve3. to make sb take part in sth (使)参加,加入Teachers should try their best to involve children in the class.Reilly involves himself in every aspect of his company’s business.We want to involve as many people as possible in the celebrations.Parents should get involved in in their child's education.* involve somebody in (doing) something 使…参加* get involved in 加入…creditdelayed payment [un.] 赊购;赊欠1) What's the credit limit on your Visa card 2) Most new cars are bought ____ credit.oncredit cardcredit2. approval or praise [un.] 赞扬;称赞;认可They never give him any credit for all the extra work he does.We did all the work and she gets all the credit for it!To his credit, Jack never told anyone what had happened.* give/get/take credit for sthCredit for this win goes to everybody in the team.* credit goes to sb* to one’s creditThe credits in a filmThis course counts as one credit towards your degree.You are a credit to your family and your country.演职人员表学分骄傲,荣耀creditV. (给账户)存钱;把…记入贷方Your account has been credited with $50 000.$50 000 has been credited to your account.credit A with B= credit B to Acredit2. [V.] 认为是…的功劳;把…归于Franklin was credited with inventing the electricity.Electricity was credited to Franklin.credit A with B= credit B to ACredit for this win goes to everybody in the team.apply1. [V.] 申请She applied ___ a job with the local newspaper. I applied ____ four universities for admission.我们需要申请建造车库的许可。We need to apply for permission to build a garage.fortoApply to sb for sthapply2. [V.] 运用The new technology was applied ______ farming.. toapply A to B2. [V.]涂;敷;施After applying a thin layer of paint _______ the wall and letting it dry, apply another coat. apply A to Btoapply4. [V.] 适用,适合This book applies ______ beginners..这个优惠只对我们的老顾户适用。toApply to sb/sthtake sth for grantedtake it for granted that…我们不应把父母的关爱当作理所当然。他只是想当然地认为他会通过考试。We shouldn’t take parents’ love for granted.He just took it for granted that he would pass the exam.authority1. [uncountable ] the power to give orders to people 权力;威权;当权(地位)Only the manager has the authority to sign cheques.Only the president has the authority to declare war.have ~ to do sthauthority3. authorities 当局;官方;机构The health authorities are investigating the problem.health/education/central/non-profit authorities 展开更多...... 收起↑ 资源预览