6. 獨立結構

　　當分詞的動作不是句子的主語發出的， 而是屬于主語以外的人或事物，這時必須在分詞前給其加一個邏輯主語，這種帶主語的分詞結構通常稱為獨立主格結構。這種結構屬于作狀語，用來表示條件、原因、伴隨情況等。

　　如：Weather permitting, we'll have an outing tomorrow.要是天氣許可的話，我們明天去郊游。(條件)

　　The night being dark, she was afraid to go there.天黑，她不敢去那。(原因)

　　The bell ringing, the children all stopped talking.鈴聲一響，孩子們都不說話了。(時間)

　　The teacher came in, his hand carrying a book.老師手中拿著書進來了。(伴隨情況)

　　注：a)還有一種表示伴隨情況的獨立結構， with+名詞或代詞賓格+分詞(或形容詞、介詞短語)

　　如：With everything taken into consideration, we all think this is a very good plan.每件事情都考慮到了，我們認為這是一項不錯的計劃。

　　She entered the train station, with a bag in her hand.她進了車站，手中提了一個包。

　　He sleeps with the window open even in winter.他即使在冬天也開著窗戶睡覺。

　　b) 獨立結構中的being, having been有時可以省去。

　　如：The meeting (being) over, we all left the room.會議結束之后，我們都離開了房間。

　　Our work ( having been)finished, we went home.我們的工作完成之后，我們都回家了。

　　7.分詞的否定結構

　　現在分詞的否定式由“not+現在分詞”構成

　　如：Not knowing where to go, she wanted to the police for help.她不知道該往哪走，就去請警察幫助。

　　過去分詞表否定，常借助un-等前綴表示。

　　如：The boy was left uncared for.那孩子無人照管。

　　8.現在分詞的時態

　　現在分詞的一般式 doing：現在分詞的一般式表示的動作與謂語動詞表示的動作同時發生，或在謂語動詞表示的動詞之前或之后發生。

　　如：She sat there reading the text.她坐在那里讀課文。(同時發生)

　　Going into the room, he shut the door.走進房子，他就關上了門。(分詞動作先于謂語發生)

　　現在分詞的完成式 having done：表示的動作發生在謂語動詞表示的動作之前，通常只作狀語，表示時間或原因。

　　如：Having finished her homework, the little girl began to watch TV.做完作業后，這小女孩開始看電視。

　　第二部分 鞏固練習

　　1.When I caught him _______ me I stopped buying things there and started dealing with another shop.

　　a. cheating b. cheat c. to cheat d. to be cheat

　　選a. 現在分詞作賓補表示動作正在發生

　　2.__________, a man who expresses himself effectively is sure to succeed more rapidly than a man whose command of language is poor.

　　a. Other things being equal b. Were other things equal c. To be equal to other things d. Other things to be equal

　　選a. 獨立主格結構

　　3. All things _________ the planned trip will have to be called off.

　　a. considered b. be considered c. considering d. having considered

　　選a. 獨立主格結構

　　4. All flights __________ because of the snowstorm, many passengers could do nothing but take the train.

　　a. had been cancelled b. have been cancelled c. were cancelled d. having been cancelled

　　選d. 獨立主格結構

　　5.I have heard both teachers and students _____ well of him.

　　a. speak b. to speak c. spoken d. to have spoken

　　選a. 省略to的不定式作賓補，表示的是動作發生了。

　　6.This crop has similar qualities to the previous one, __________ both wind-resistant and adapted to the same type of soil.

　　a. been b. to be c being d. having been

　　選c.現在分詞作狀語

　　7.The sale usually takes place outside the house, with the audience_______ on benches, chairs or boxes.

　　a. having seated b. seating c. having been seated d. seated

　　選d. seat只能用過去分詞的形式表示使就坐。

　　8.You will see this product ______ wherever you go.

　　a. to be advertised b. advertised c. advertise d. advertising

　　選b.過去分詞作賓補

　　9.He wasn't appointed chairman of the committee, ________ not very popular with all its members.

　　a. to be considered b. considering c. being considered d. having considered

　　選c.分詞短語作狀語

　　10.Professor Wang, __________ for his informative lectures, was warmly received by his students.

　　a. knowing b. known c. to be known d having known

　　選b. 過去分詞作定語

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