Unit 1 Science and Scientists 单词讲解(ppt课件)-2022新人教版（2019）《高中英语》选择性必修第二册.pptx

1、选择性必修二选择性必修二 Unit 1 Science and Scientists主题语境：人与社会对社会有突出贡献的任务词性转换重点短语经典句式单元词汇发散上串下联核心词汇讲解及练习一词多义/熟词新意语言运用强化高频考点写作挑战考场佳作目录目录一、词性转换1._ vt.使感染；传染 _ n.感染；传染2._ vt.证明 link v.证明是 _ n.证据；证明；检验3._ adj.干净的；纯的；纯粹的 _ v.净化4._ vt.使改观；使改变形态 vi.改变；转变 _ n.转化；转换；变换；变化5._ n.思想；思维；见解 _ v.认为；思考6._ n.发现；调查结果；(法律)判决 _ v

2、.发现7._ adj.最初的；开始的；第一的 _ adv.起初infect infection prove proof pure purify transform transformationthinking think finding findinitial initially 8._ vt.保卫；防守；辩解 _ n.防御；保卫9._ n.助理；助手 _ vt.帮助；协助；援助 _ n.帮助；协助10._ adj.有天赋的；有天才的；天资聪慧的 _ n.天赋；天分11._ adj.稳定的；平稳的；稳步的 _ adv.平稳地；持续地12._ adj.生动的；鲜明的；丰富的 _ adv.生动地d

3、efend defense assistant assist assistance gifted gift steady steadily vivid vividly二、重点短语1.最终地；彻底地2.同意；赞同3.幸亏；由于4.(战争、打斗等)突然开始；爆发5.主管；掌管6.患(病)；染上(小病)7.最重要的是；尤其是8.负有责任9.对有影响10.在某人的领导下once and for all subscribe to thanks tobreak outin charge of come down above all be to blame have an impact on under o

4、nes leadership三、经典句式1.句型公式：It seems that.看起来似乎教材原句p.2_ _(那个女人看起来似乎很喜欢从抽水机里取来的水)that she had it delivered to her house every day.2.句型公式：have sth done教材原句p.2Accordingly,he _(让人把水泵的手柄拆了)so that it could not be used.It seemed that the woman liked the water from the pump so much had the handle of the pum

5、p removed 四、单元词汇发散上串下联1.常见的反义形容词abstract 抽象的concrete 具体的 positive 积极的negative 消极的optimistic 乐观的pessimistic 悲观的2.以ship为后缀的高频名词scholarship奖学金；学问 friendship 友谊leadership 领导地位 relationship 关系hardship 苦难 championship 冠军称号3.同根词汇有无定冠词意义不同的短语荟萃in charge of 主管；看管；负责 in the charge of 被掌管in control of 控制；管理 in

6、 the control of 被控制in possession of 占有；拥有 in the possession of 被占有1.defend vt.保卫；防守；辩解l记牢defend.from/against.保护免受defend oneself 为自己辩护；自卫defence n.防御；保卫in defence(of)保护；为了保卫；(为)辩护in ones defence 为某人辩护练透单句语法填空He planned to learn kung fu in the summer holidays so that he can defend himself against _ (a

7、ttack).Cooper wrote to the journal immediately,_(defend)himself.写美一句多译看到那条凶猛的蛇，他像箭一样冲过去保护他的儿子。Seeing the fierce snake,he rushed _ his son like an arrow.(defend)Seeing the fierce snake,he rushed _ his son like an arrow.(defence)being attacked defending to defend in defence of2.in charge of主管；掌管记牢(1)i

8、n the charge of.由来负责；被掌管take charge of.负责；看管(表动作)free of charge.免费(2)charge(sb)for sth(向某人)要价charge sb with(doing)sth 指控某人(做)某事练透语境辨义/熟词生义The outstanding scientist is in charge of handling the matter._ I will charge you one hundred yuan for repairing your cellphone._ The police charged the thief wit

9、h stealing raw materials in the company._ 写美微写作(应用文之活动安排)作为学生会主席，我被委派负责你在天津逗留期间的所有活动。As chairman of the Student Association,I was appointed to_ _ during your stay in Tianjin.主管 收费 控告 be in charge of/take charge of arranging all the activities3.above all最重要的是；尤其是记牢all in all总的说来；总而言之in all 全部；合计first

10、 of all 首先at all (否定句)一点也不；(疑问句)到底；究竟练透用all的相关短语填空1.If you want to achieve success,_,you must be strict with yourself.2.I was very upset to find out that he didnt like my gift _.写美微写作(应用文之申请信)最重要的是，我精通英语，所以我与他人沟通没有困难。_,I have a good command of English,so I _ _.above all at allAbove all have no diffi

11、culty in communicating with others4.decrease n.减少；减少量 vt.&vi.(使大小、数量等)减少；减小；降低记牢(1)decrease by 减少了decrease(from.)to (从)减少到decrease in 在某方面降低(2)on the decrease 在下降；在减少a decrease in sth 某方面的减少/下降练透单句语法填空 _(decrease)the amount of rubbish and to protect the environment,more governments are requiring peo

12、ple to recycle materials.Over the past decades,sea ice has been _ the decrease in the Arctic as a result of global warming.写美一句多译由于人类活动，一些稀有动物的数目在减少。Because of human activities,the number of some rare animals _.(decrease n.)Because of human activities,the number of some rare animals _.(decrease v.)T

13、o decrease onis on the decreaseis decreasing5.blame vt.把归咎于；责怪；指责 n.责备；指责记牢blame sb for(doing)sth 为某事责备某人/责备某人做了某事blame sth on sb 把某事归咎于某人be to blame(for)应(为)承担责任；该(为)受责备lay/put the blame on 把归咎于l 练透单句语法填空1.It was the professor rather than his assistant that was _(blame)for what had happened in the

14、lab.2.The boss didnt blame his assistant _ the mistake,which was beyond expectations.3.The boss didnt blame the mistake _ his assistant,which was beyond expectations.l 写美句式升级Alice was in low spirits because she was blamed for the breakdown of the school computer network.l _,Alice was in low spirits.

15、(分词作状语)l 用准be to blame不能用被动语态，该短语用主动语态表示被动含义。to blame for on Blamed for the breakdown of the school computer network6.句型公式：have宾语动词ed形式(短语)记牢have sth done让别人做某事have sb do sth 让某人做某事have sb/sth doing sth 让某人一直做某事或让某事处于某种状态have sth to do 有某事要做cant/couldnt have sb doing sth 不允许某人做某事(否定句)l 练透单句语法填空1.He

16、had his house _(burn)down in the fire.2.We cant have him _(get)away with cheating in the exam；otherwise,he wont shoulder the blame.3.Attention，please！I have something urgent _(inform)you.l 写美微写作既然你已经意识到你的时间是有限的，你必须更加努力学习以实现自己的目标。l Now that you have realized that your time is limited,_.burnt getting

17、to informyou must study harder to have your goal achieved一词多义根据语境选出subscribe to的含义。A.同意；赞同B.把捐赠给C.订购He subscribes to the view that children can benefit from being independent._ Amy thought it was worthwhile to read English newspapers every day so she subscribed to the 21st Century._ Many people subs

18、cribed money to the education fund._AcB阅读理解突破阅读障碍一熟词生义(2020江苏卷)They shifted their viewpoints frequently._(2020天津卷)“Small does not mean weak,sir,”she defended herself.“I was born in the country of Wisconsin.Ive driven teams of horses and carried water.Making a fulllength clay(黏土)figure would not exha

19、ust my strength and that is what I intend to do！”_ 改变辩解语言运用强化高频考点1.(2021全国甲卷)Its the seaside birds that deserve at least part of the blame _ getting Nick Burchill blacklisted at the Fairmont Empress Hotel in Victoria，Canada.2.(2021天津卷)After letting go of his anger and _(frustrate),he found himself o

20、n a road to sympathy instead.3.(2020全国卷)After that I _(pour)oil into a pan and turned on the stove,I waited patiently until the oil was hot.for frustration pouredl 写作挑战考场佳作佳句写作1.(2020新高考卷)起初，伯纳德怀疑他不能按计划卖掉他的爆米花。(状语从句的省略)_2.(2020新高考卷)多亏了杰克的善良和慷慨，伯纳德才能通过卖爆米花赚钱养家。(thanks to)_3.(2020全国卷)我最尊敬的人是我的英语老师，他从不

21、怀疑我们会实现我们的梦想。_(suspect that.)_(suspect sb of.)Initially,Bernard suspected that he couldnt sell his popcorn as planned.Thanks to Jacks kindness and generosity,Bernard could make some money by selling popcorn to support his family.The person I respect most is my English teacher,who never suspects that

22、 we can achieve our dreams.The person I respect most is my English teacher,who never suspects us of achieving our dreams.2.长句建构 根据下面的拓展图，翻译句子。(2020天津卷)我们都被这个仪式深深地感动了，我们从仪式上认识到，责任感总是伴随着我们成长的过程。_We are all deeply moved by the ceremony,from which we realize that the sense of responsibility always accompanies the process of our growth.