最新英語(yǔ)單項(xiàng)知識(shí)的講解與練習(xí)(79)

1、精品文檔英語(yǔ)單項(xiàng)知識(shí)的講解與練習(xí)（79）391. act的用法act 法令、條例、表演、扮演（角色 ）、行動(dòng)。例句： It is an act of kindn ess to help a bli nd man across the street.幫助盲人 過(guò)街是慈善的行為。 This act had to get a strong support from them.這個(gè)行動(dòng)必須得至U 他們的大力支持。 Thi nk well before you act要三思而后行。 Joh n's bee n acti ng very stra ngely lately近 來(lái)約翰的行為怪得很。短

2、語(yǔ)： act for 代理； act on 對(duì) ?有效、聽(tīng)從； act as if 某人的舉止就好像 ?似的（虛擬）； act as 充當(dāng)、擔(dān)任； act up to 實(shí)行、按照； act out表演； act dead 裝死； act against 違反； act without thinking輕率行事；act up to promise履行諾言；act up to one's reputation做符合某人聲望的 事； act with extreme caution 極其 謹(jǐn)慎 地行 事 ； act undercompulsion被迫去做；act on wrong views

3、按錯(cuò)誤的觀點(diǎn)辦事；act outof kindness行動(dòng)出于善行；用法： act 的基本意思是“行動(dòng)”，指人或事物對(duì)所期待的行為、作用或?qū)ν鈦?lái)影響作出反應(yīng)的方式等。act 用作不及物動(dòng)詞 ，常用于詢問(wèn)行動(dòng)精品文檔精品文檔具體性質(zhì)的疑問(wèn)句中和帶有狀語(yǔ)性修飾語(yǔ)或形容詞補(bǔ)足語(yǔ)的陳述句中。 act 可用作系動(dòng)詞 ， 接名詞或形容詞作表語(yǔ)，意思是 裝成”顯得”。 act 泛指 演戲”解時(shí)是不及物動(dòng)詞，作 扮演（戲劇或影視中某角色）” 解時(shí)用作及物動(dòng)詞。用作不及物動(dòng)詞時(shí)也可以“戲”作主語(yǔ)。 act 是可數(shù)名詞 ，多用作單數(shù)形式。 act the hero（裝出英雄氣概），act the child（做出

4、兒童模樣）等表達(dá) 方式里多用the, 而不用a； 當(dāng)著重點(diǎn)在那個(gè)人當(dāng)時(shí)的情況時(shí)，act 后多使用形容詞，而不是副詞，例如下句中用natural 而不用naturally : 如： At first he was a littleshy in class, but now he acts more natural.比較：act 與 action 的區(qū)別：act 指短暫，簡(jiǎn)單的動(dòng)作，而action 指持續(xù)，復(fù)雜的動(dòng)作。使用act of cruelty,act of kindness,act of madness時(shí)（ 后 都 是 接 of 和 抽 象 名 詞 ） 只 用 act, 不 用 actio

5、n 。cruel act （ion ）,foolish act （ion ）等，均是前面用形容詞，更慣于使用action 。act 比 action 具體， action 比 act 扌由象，女口in word and act中 word 與 act 均是具體的， in speech and action中， speech 與 action都 屬由象的；練習(xí)： we went to Canada to travel and my cousin _ as our guide.精品文檔精品文檔A. played B. showed C. acted D. performed He _ Hamlet

6、 very well in the play.A. acted B. acted as C. was acted D. was acted as A trained dog can _ a guide to a blind person.A. act B. act as C. act out D. act for I acted _ dean while Mr Smith was ill. A. at B. by C. of D. for392. add 的用法add 添加、增加。例句： If you add 4 to 5, you get 9四. 加五等于九。 If the tea is t

7、oo strong, add some hot water to it.如果茶太濃,加點(diǎn)開(kāi)水。 He added some wood to i ncrease the fire他加了些木柴，使火旺些。 I know, and I must add that we have a very pleasa nt relati on ship我知 道,而且我還要補(bǔ)充一條: 我們的關(guān)系非常愉快。精品文檔精品文檔 Would anyone like to add any thi ng to what r ve said?有沒(méi)有人要補(bǔ)充我剛才所說(shuō)的?短語(yǔ)：add in 包括在內(nèi)；If you add 3 t

8、o 5, you get 8 = 3 added to 5 is/makes 8 = 3 and 5 makes/ make 8 = 3 plus 5 is/ equals 8.三加上五等于八； Then he added that接著他又說(shuō)； add up 加起來(lái)； add up to 加 起來(lái)總共 （ 不用被動(dòng)式 ） 、所有這一切說(shuō)明、似乎表示、意味著；add on 加上、附加；add to/ in addition to/ add something to增加、增多、添加；in number/ in all/ altogether總共； add .to 把 .增添到 . .用法： add

9、 既是普通用語(yǔ) ，也是科技用語(yǔ) ， 主要指運(yùn)用算術(shù)中的加法運(yùn)算求出一系列數(shù)字或數(shù)量之和,廣義則指把一物“加入”或“添加”到另一物中以“增加”原物的重量、規(guī)模、總量或重要性等。add 還可表示“接著說(shuō)”還“說(shuō)”。 add 用作不及物動(dòng)詞的情況不多。用作及物動(dòng)詞時(shí)，賓語(yǔ)可以是數(shù)字 ； 也可以是有形的東西,如糖、水等; 還可以是無(wú)形的東西,如麻煩等。 add 用作及物動(dòng)詞時(shí)的基本用法是add sth to sth或 add sth, 可以把a(bǔ)dd sth 看作是省略了to sth, 這主要用在適當(dāng)?shù)纳舷挛闹?，特別是在說(shuō)話雙方對(duì)to sth 都很明確時(shí)。 add 意為把加上去”不表達(dá)為增加”而in c

10、rease 或 raise 表達(dá)為 增加”女口：They have decided to add￥ 20 to his wages. /They精品文檔精品文檔have decided to in crease his wages to￥ 100 a mon th. add to 有”增加 "的意思，如： That will add to my pleasure. 那樣會(huì)增 加我的樂(lè)趣。 add(s) up to 有 總合起來(lái)成為”或意味著”的意思，偶爾可省掉up。如： Everything you say adds up to justice( 爾所說(shuō)的一切，總合起來(lái)就是正義。練習(xí)

11、： The engine of the ship was out of order and the bad weather _ the helplessness of the crew at sea.A. added to B. resulted from C. turned out D. made up The visit ing Mi nister expressed his satisfacti on with the talks,thathe had enjoyed his stay here.A. having added B. to add C. adding D. added H

12、is giving up halfway _our difficulty.A. increased to B. caused to C. added to D. added up I have n ever heard of the n ames you_ the list.A. added B. added up C. added to D. added up to精品文檔精品文檔 He had some no tes _the article.A. added B. added to C. to add D. added up to Her kindn ess _her beauty.A.

13、 added B. added to C. added up to D. was added to393. ahead 的用法ahead 在前、向前。例句： A still better tomorrow lies ahead of you. 展現(xiàn)在你們前面的是更加美好的未來(lái)。 The young man walked at the head of the parade.那年輕人走在游行隊(duì)伍最前面。 He soon got ahead of the other runners in the race.在賽跑時(shí)，他一到別人前面去了。 The car behi nd wants to get ahead of us. 后面那輛車想超過(guò)我們。短語(yǔ)：ahe