Unit 1 People of achievement Learning about Language 课件-2024-2025学年高二英语人教版（2019）选择性必修第一册

Unit 1 People of Achievement Discover useful structures 1 Review the story of how artemisinin was discovered by using the words below. boil, liquid, extract, substance, conclude, committed, acknowledge, objective, crucial, apparently, obtain, insist 2 Task 1 boil botanical properties liquid substance 3 1..., and decided to review ancient Chinese medical texts to find traditional botanical treatments for the disease. 2.Her team examined over 2,000 old medical texts, and evaluated 280,000 plants for their medical properties. 3.They then tried boiling fresh wormwood, and using the liquid obtained from this to treat malaria,but this did not work either. 4.She concluded that boiling the sweet wormwood apparently destroyed its medical properties. 5.Using a lower temperature to draw out the extract, she found a substance that worked. Read the sentences aloud. 4 Task 2 distinction evaluate commitment concluded analysing 5 distinct indistinct distinguish distinctive distinction commit commission commitment committed value valueless invaluable valuable evauation evaluate 6 conclude concluding distinguish conclusion analyse analyser analytical analysis 7 1..., and decided to review ancient Chinese medical texts to find traditional botanical treatments for the disease. 2.Her team examined over 2,000 old medical texts, and evaluated 280,000 plants for their medical properties. 3.They then tried boiling fresh wormwood, and using the liquid obtained from this to treat malaria,but this did not work either. 4.She concluded that boiling the sweet wormwood apparently destroyed its medical properties. 5.Using a lower temperature to draw out the extract, she found a substance that worked. Read the sentences aloud. 8 语法精讲 一、非限制性定语从句中的关系词 引导非限制性定语从句的关系词有: 关系代词 which, who, whom, whose, as 关系副词 when, where, why等 关系词在从句中所作成分的比较: 成分 主语 宾语 表语 定语 状语 关系代词 √ √ √ √ × 关系副词 × × × × √ In rural areas, where/in which ambulances can take a relatively long time to arrive, the phone boxes have taken on a life-saving role. 在农村,救护车要花相对长的时间到达,电话亭就承担了救命的角色。 Mr Smith, from whom I have learned a lot,is a famous scientist. 史密斯先生是一位著名的科学家,我从他那里学了很多东西。 The books on the desk, whose covers are shiny, are prizes for us. 桌子上的书是我们的奖品,书的封皮很亮。 I had told them the reason, for which I didn’t attend the meeting. 我已经告诉了他们我没有参加会议的原因。 注意： (1)whose作定语,先行词是人时,“whose+n.”相当于“the+n.+of whom”;先行词是物时,“whose+n.”相当于“the+n.+of which”。 (2)that不能引导非限制性定语从句。when/where可以用“介词+which”来代替。 (3)非限制性定语从句表原因时,不用 why 引导,而用 for which代替 why。 限制性定语从句 非限制性定语从句 从句与先行词关系紧密，对先行词的意义起到限定作用，不可或缺 从句对先行词或整个主句其补充说明，解释，评论等作用 只能修饰先行词，不修饰整个主句 即可修饰先行词，也可修饰整个主句 可用that引导从句 可用关系代词和关系副词，但通常不用that引导 从句前一般不用逗号隔开 从句和先行词或主句之间一般用逗号隔开 12 1.Now Irene Astbury works from 9 am to 5 pm daily at the pet shop in Macclesfield, ___________ she opened with her late husband Les. 2.Many westerners _______ come to China cook much less than in their own countries once they realize how cheap it can be to eat out. 3．They worked for two hours to rescue the man _______ was injured in the accident. 4.Lichun is a Chinese word for one of the 24 solar terms, ________ means the beginning of spring. 5.We are talking about one of the most interesting devices ________ allow people to deal with lots of aspects of their lives. Exercise which who who/that which that 13 Task 2 14 Task 3 15 二、关系代词as和which 关系代词as和which既可引导限制性定语从句,也可引导非限制性定语从句,在从句中作主语或宾语。 项目 as which 指代 引导的从句只能指代整个主句的内容 引导的从句既可指代整个主句的内容,又可指代主句的一部分 位置 可位于主句之前、之中或之后 引导的从句不能位于主句之前 意义 正如,就像 这(一点),那(一点) As is reported in the papers, our country has sent up another man-made earth satellite.报纸上报道,我们国家又发射了一颗人造地球卫星。 (as 指代主句内容,位于句首) The singer, as was expected, achieved great success. 正如所预料的那样,这位歌手取得了巨大的成功。(as 指代主句内容,位于句中,用逗号隔开) These three books were given to me as gifts, which might add to the meaning I attach to them. 这三本书被当作礼物给了我,这可能会增加我赋予它们的意义。 (which 指代主句内容,位于句末) 注意: as引导的非限制性定语从句常可看作固定结构: 四、限制性定语从句与非限制性定语从句的不同 类别 限制性定语从句 非限制性定语从句 作用 修饰限制(只可修饰先行词) 补充说明(可修饰先行词或主句) 意义 去掉后,句意不完整 去掉后,句意仍完整 形式 不用逗号与主句隔开 用逗号与主句隔开 关系词 作宾语时可省略 作宾语时不可省略 可用that 不用that,用who或which代替 可用who代替whom 一般不用who代替whom 可用why 不用why,用for which代替 译法 先译定语从句,后译先行词,常译作“……的” 可译为并列句 He is the man whom you are looking for. 他就是你正在找的那个人。(限制性定语从句,修饰先行词the man) These apple trees, which I planted three years ago, have not borne any fruit. 这些苹果树是我三年前栽的,还没有结过果实。(非限制性定语从句,用逗号与主句隔开) He studied hard at school when he was young, which led to his success in his later life.(which 指代主句内容) 他年轻的时候在学校努力学习,这促使他在以后的生活中取得成功。 Friendship is precious wealth (that) one searches for all his life. 友谊是毕生难觅的珍贵财富。(that 在从句中作for 的宾语,可省略) 单句写作 1.The person (　　　　　) ________ ________ ________(我最尊敬的人) is my physics teacher.  2.But it was a meaningful day, ________ ________ ________ ________ ________ (我们学到很多东西).  3.She is working hard, ________ ________ ________ ________(这是大家有目共睹的).  whom I respect most when we learnt a lot which everyone can see THANKS 22 as is as has been $$