高二英语选修7第三单元词汇知识点详解

高二英语选修7第三单元词汇知识点详解

(1) sth with sb 与某人分享某物 he would share his last pound with me. 1 share (v) (2) sth between sb 共同承担? we share a small room between us. 我们俩合用一个房间.

(3) share sth among sb 共享/均分? please share the sweets among the children present here.

profits are shared (out) among the partners. 合伙人均分利润。

(4) (in) sth we will share the joys and sorrows. (5) vi there is only one room , so we’ll have to share. （合用） you must learn to share.

(6) n 一份，股份 let me take a share in the expenses . 这些费用让我也出一份。

he owns 500 shares of the company. 他拥有那家公司的500 股股份。

share sb’s joys and sorrows 和某人同甘共苦 2 favorite (1) adj 最喜欢的 who is your favorite writer?

be favorite with 在?中受欢迎 the singer is popular with young people.

(2) n最喜欢的人或物the book is a favorite with students. liu xiang is a general favorite.。刘翔是最受大众喜欢的人

favor 喜欢，支持 in favor of 支持，赞成 favorable 赞成的，有利的，讨人喜欢的 favoritism (n) 偏爱，得宠

3 witness (1) v 当场见到，目击 i witnessed an accident on my way home yesterday. (2) v表明，说明 her flushed（通红） face witnessed the excitement she felt. (3) v作证 none could witness that he was present.

(4) v 为?作证 常与to 连用 he witnessed to having seen the man enter the room. 他作证说他看到那个人进入房间。

(5) n (c) “目击者，证人”常与to连用the police found the witness to the murder case.he was a witness to the accident.

(6) n (c,u) 证词，证据，证明 his ragged clothes were (a) witness to his poverty. the old man gave witness on behalf of an accused person. 那位老人为被告作证。 on behalf of 代表/替?

相关短语：be a witness to 是?的目击者 give witness on behalf of 替?作证 witness to 为某事作证说

4 as (1) conj 用作连词可引导时间，原因，让步，比较，方式等状语从句

as he looked at her, she made a face. as he didn’t know much english, he got out his dictionary and looked up .

he doesn’t speak as the other people do . you must do as i told you. he is not so diligent as you.

young as he is , he knows a lot. child/student as he is, he has a good knowledge of history.

as a young boy , he lost his parents in the war. i watched her as she combed her hair.

i have changed it as you suggested. i read the letter as i walked along the river.

as you weren’t there , i left a message. as he has been ill , perhaps he needs help.

try as he would , he couldn’t open the door. tired as they were, they walked on. leave the table as it is.

(2) 作关系代词，引导限制性定语从句，先行词前常有such, the same, as, so 与之呼应，构成such?as, so?as,等

we’ll make such computers as are needed in different branches of science. i want to buy the same shoes as were advertised.

(3) 作关系代词，引导非限制性定语从句，as 指前或后面整个句子的内容。 as you can see in the map, the two cities are far away from each other. as everybody knows ,all that glitters is not gold. as is known to us all, taiwan is part of china.

(4) prep 作为 you will be welcomed as a hero tomorrow morning . she treats him as her brother.

近义词辨析：① as 强调主从句谓语动词的动作同时发生。 we talked as we walked on our way home.

②when 侧重表示瞬间（时间点）,主从句所述动作可以同时也可先后发生 .

he went home when he had finished his homework.(先后) it was snowing when we got to the airport. （同时）

③while 表示时间段或两个延续性动作同时发生strike while the iron is hot. please look after her while i’m away.

④because 语气最强，着重说明原因或理由（其从句一般放在主句之后）， 在回答why问句时，必须用because 不能用其他词。 he was tired because he had done much hard work.

⑤since 语气比because 稍弱，表示关系上的必然结果，一般译成“既然，鉴于” （一般放在主句前）

since everyone is here, let’s begin our class.

⑥as 语气最弱，只说明一般的因果关系（可放在主句之前，也可以放在主句之后）。 as he didn’t know much english , he had some difficulty in making himself understood. ⑦for 是并列连词,不能放在句首，提供一种解释、理由或推断。the electricity must be cut off for the light went out.

5. sort (1) vt 把?分类 ,拣选 she is busy sorting letters. 她正忙于给信件分类。he was sorting his foreign stamps.

(2) sort out 整理（好） i have sort ed out the letters. 我已把信分好。he sorted out the old cards.他整理好了旧名片

we must sort out the good apples from the bad ones.

(3) n 种类，类别 a hammer is a sort of tool. you can ask him for help---he is a good sort. ?他是个好人。

he’s the sort of person i really dislike. what sort of paint are you using? (4)词组 sort of 颇为，有几分 i feel sort of sick. all sorts of 相当于all kinds of

近义词辨析 ①sort 种类，在口语和商业语言中更常用，还可表示轻蔑的意思.