高考英语单元复习选择性必修三 Unit 1（人教版新教材新高考专用）.pptx

1.influential adj.有很大影响力的；有支配力的【词性转换】influence n.U,C 影响；作用 U 影响力；支配力 C有影响的人(或物)vt.影响；对起作用；支配【常见搭配】be influential in(doing)sth 对(做)某事是有影响的 have an influence on.(=have an effect/impact on.)对产生影响2.purchase vt.荣誉；尊敬；荣幸【常见搭配】purchase.from.从处购买 make a purchase 购买东西3.emerge vi.&vt.出现；浮现；暴露【词性转换】emergence n.出现；显现；摆脱【常见搭配】emerge from 自中出现；从中显露出来4.convey vt.表达；传递（思想、感情等）；传送【常见搭配】convey sth to sb 把某事/情感传达给某人；告诉某人某事 convey a sense/an impression/an idea 传达一种感觉/印象/观念5.representative n.代表；代理人 adj.典型的；有代表性的【词性转换】represent vt.代表；为代言；维护的利益 representation n.表现；描述；代表【常见搭配】be representative of.的代表6.decline n.（数量、价格、质量等的）减少；下降；衰落 vi.&vt.减少；下降；衰落；谢绝【常见搭配】fall/go into(a)decline 开始衰落 in decline/on the decline 在下降;在减少 decline to do sth 拒绝做某事7.recognition n.承认;认出;赞誉【词性转换】recognise v.辨认出；承认；公认【常见搭配】recognise sb/sth(by/from sth)(通过/从某事物)认出某人/某物 recognise.as.(正式)承认是；接受是 be recognized(as/to be sth)受赏识；被看重；被公认(为)beyond/out of recognition 无法辨认;面目全非8.guarantee n.保证；保修单；担保物 vt.保证；确保，肯定必然发生【常见搭配】guarantee sb sth/guarantee sth to sb 向某人担保/保证某事guarantee to do sth 保证做某事 guarantee that.保证under guarantee 在保修期内 give sb a guarantee that.向某人保证9.worthy adj.值得的；有价值的【常见搭配】be worthy of being done/to be done 值得被做 be worthy of sth 值得某物（常接抽象名词）10.in particular 尤其；特别11.set apart from 使与众不同；使突出；使优于12.be fond of 喜爱；喜欢13.bring to life 赋予生命；使鲜活起来一、时间状语从句一、时间状语从句连连 词词含含 义义用用 法法when当时候可与延续性动词或短暂性动词连用从句动作可以发生在主句动作之前、之后或与主句动作同时发生while当时候只可与延续性动词连用侧重于主句动作与从句动作相对比as一边一边；随着常与延续性动词连用从句动作与主句动作同时或几乎同时发生1、when，while和as引导的时间状语从句Ill pay you a call when Im in town.At the last crossing,while I was waiting for the green light,I saw an old man walking toward me.As the sun fell behind the mountains,the air grew colder.注意：如果主句表示的是短暂性动作，而从句用延续性动词的进行时态表示在一段时间内正在进行的动作，则when,while与as可互换使用。

When/While/As they were talking,I ran away.While I was walking along the street，I heard my name called.一、时间状语从句一、时间状语从句2、表示“一就”含义的词或短语引导的时间状语从句有的名词（短语）或副词可引导时间状语从句，如：the moment,the minute,the second,the instant,immediately,directly,instantly等，另外as soon as也可引导时间状语从句I recognized him as soon as he came in the room.I want to see him the moment he arrives.He got down to business immediately he sat at the desk.在hardly/scarcely.when/before.和no sooner.than结构中，主句用过去完成时，than,before或when所在的从句用一般过去时一、时间状语从句一、时间状语从句We had hardly started when it began to rain.He had scarcely put the phone down when the doorbell rang.He had no sooner got his wings than the Korean conflict broke out.注意：在hardly/scarcelywhen/before，no sooner.than结构中，当hardly,scarcely或no sooner位于句首时，主句要部分倒装。

No sooner had I sat down than there was a loud knock on the door.Hardly had we started when it began to rain.Scarcely had the game started when it began to rain.一、时间状语从句一、时间状语从句 till,until和not.until/till的用法until,till两者均表示“直到为止”，引导时间状语从句肯定句中，其主句谓语动词必须为延续性动词，表示某动作一直延续到某时间为止notuntil.，not.till.两者均表示“直到才”，not所在的主句的谓语动词必须为非延续性动词，表示某动作直到某时间才开始until可用于句首，而till不能Wash the rice in cold water until the water runs clear.Im acting as deputy till the manager returns.I wont go until Im good and ready.Not until they heard that she was safe and sound were their minds set at rest.一、时间状语从句一、时间状语从句 after，before引导的时间状语从句after表示“在之后”，before表示“在之前；还未就；还没来得及就”。

Nobody is ever humble enough to learn after hes grown up.Id like a second opinion before I make a decision.Some children can read and write before they go to school.注意：“It will be/was+时间段+before”表示“在之前还要多久/过了多久才”It will be months before we get the results.“It wont be/wasnt+时间段+before从句”表示“过不了多久就/没过多久就”It wont be a few minutes before the train leaves.It wont be long before we see each other again.一、时间状语从句一、时间状语从句 since引导的时间状语从句since意为“自从以来”,从句的谓语动词一般是瞬间动词,主句谓语动词则常用延续性动词since从句的时态若是一般过去时,主句常用现在完成时或现在完成进行时。

此外,since常用于以下句型:It is/has been+时间段+since(常用一般过去时)Its twenty years since Ive seen her.注意“It is/has been+时间段+since从句（常用一般过去时）”句型的含义取决于从句的谓语动词是否为延续性动词若从句谓语动词为非延续性动词，则表示从该动作开始一直延续到现在多久；若从句谓语动词为延续性动词，则表示从该动作结束到现在多久It is two months since they met.Its two months since he lived here.一、时间状语从句一、时间状语从句 其他常见名词短语引导的时间状语从句常见短语有：every time;each time;any time;next time;all the time;the day/year;the first/last time等Every time I hear that song I feel happy.The first time I saw Kai she was sitting in my front yard,hugging my dog,Harley.Each time I tried to help I was repulsed.一、时间状语从句一、时间状语从句常见的asas短语：as early as 早在的时候as far as 远到；至于as long as 和一样长；长达；只要as much as 和一样多；多达as well as 和一样好；也，和as soon as 一就；刚He started writing music as early as 1989.Our land extends as far as the river.Theyll respect you as long as you play fair.The mind needs exercise as well as the body.1.While painters as early as Da Vinci had used oil,this technique reached its height with Rembrandt(1606-1669),who gained a reputation as a master of shadow and light.句式：sth is thought/believed/said/supposed reported to do/to be doing/to have done.猜想/据信/据说/应当/据报道结构：主语+be+过去分词+to do=It+be+过去分词+thatThe boy is said to have passed the national exam.=It is said that the boy has passed the national exam.60%students in the university were reported to have passed CET-6.=It。