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    英文句子種類辨析之肯定句和否定句

    時間:2021-06-11 13:01:14 優美句子 我要投稿

    英文句子種類辨析之肯定句和否定句

      含否定詞的句子稱為否定句(Negative Sentence),不含否定詞的句子就稱為肯定句(Affirmative Sentence)。例如:

    英文句子種類辨析之肯定句和否定句

      例:Mr. Walker is an Englishman.

      (華克先生是英國人!隙ň洌

      例:He is not an American.

     。ㄋ皇敲绹。——否定句)

      簡單地說,表達事物的“Yes”這一面的句子就是肯定句,“No”的一面的就叫做否定句。

      傳統的'英語入門都是先學肯定句,然后再學肯定句的反面,亦就是否定句。否定句的表達方式基本上有下面的兩種。

     。1)使用副詞否定詞“not”,例如:

      (a)be,have為主要動詞:

      例:I am not a good swimmer.

     。ㄎ也皇且粋游泳的好手。)

      例:He was not at home yesterday afternoon.

     。ㄗ蛱煜挛缢辉诩。)

      例:I have not much money.

      (我沒有很多錢。)

      例:He has not many friend here.

      (在這里他沒有很多朋友。)

      解說“be/have +not”?s短成一詞,尤其是日常談話更是如此。例如:

      例:You aren't [a:nt] a friend of his, are you ?

     。悴皇撬呐笥寻,是不是?)

      例:He isn't [>!znt] my brother.

     。ㄋ皇俏业男值。)

      例:I wasn't [>w&znt] there at that time.

      (當時我沒有在那兒。)

      例:There weren't [w+:nt] many people at the party yesterday.

     。ㄗ蛱鞗]有很多人參加宴會。)

      “am +not”不是“amn't”,而是“aren't”或“ain't[eint]”,例如:

      例:I ain't ready.

      (我還沒準備好。)

      例:I am very nice to you, aren't I?

     。ㄎ覍δ愫懿诲e,是不是?)

      美國人用“ain't”很隨便,應該是“are not,is not,have not,has not”的地方,他們也會“ain't”一下就帶過去,宜注意。

      下面例句是“have not,has not”的縮短形。

      例:I haven't[>h$vnt] a headache.

      (我沒有頭痛。)

      例:He hasn't[>h$znt] come yet.

      (他還沒來。)

      (b)be,have為助動詞

      例:You aren't going to go to her birthday party, are you?

     。悴淮蛩銋⒓铀纳昭鐣,是不是?)

      例:It isn't raining outside.

      (外面沒有在下雨。)

      例:She wasn't asked to speak at the meeting.

     。ㄋ龥]有被請求在會上講話。)

      例:I haven't done anything wrong to her.

     。ㄋ麤]有做對不起她的事。)

      例:He hasn't yet paid the money.

     。ㄋ形锤跺X。)

      be+ V -ing(進行時),be +P.P.(過去分詞)(被動詞態),have(has,had)+P.P.(完成時)等的“be,have(has,had)”皆為助動詞。例1的“be going to …”在學校文法中也常被視為助動詞。

      (c)“助動詞+V”時

      動詞帶有助動詞“will,shall,can,may,must,need,dare,ought to,used to,had better”等時,將“not”置于助動詞與主要動詞之間。例如:

      例:I will not do it again.

      I won't[wount] do it again.

     。ㄎ也辉敢庠僮鲞@種事。)

      例:The old man cannot find his way home.

     。莻老人找不到回家的路。)

      例:I couldn't sleep last night.

     。ㄗ蛞刮覠o法入睡。)

      例:You ought not to swim in the river.

     。悴粦撛诤永镉斡。)

      例:You had better not tell her everything.

      (你最好不要樣樣事情都告訴她。)

      注:“can”的否定形式是“cannot or can't”,不可寫成“can not or cann't”。

      (d)使用助動詞“do”的否定句

      一般動詞的否定句通常使用助動詞“do”,句式如下:

      句型 do(does, did)+not + V(原形動詞)

      例:I don't know her very well.

     。ㄎ也⒉缓芰私馑。)

      例:He doesn't like Chinese tea very much.

     。ㄋ⒉缓芟矚g中國茶。)

      例:She didn't come to school this morning.

     。ń裉煸缟纤龥]有來上學。)

      例:Don't believe him.

     。ú灰嘈潘脑。)

      注:“have”表達“有”以外的意義時,其否定句通常使用助動詞“do”,例如:

      例:Usually I don't have (=eat) breakfast on Sunday morning.

     。ㄍǔP瞧谔煸缟衔也怀栽绮。)

      例:She doesn't have (=drink) coffee for breakfast.

     。ㄋ话芽Х瘸渥髟绮秃。)

      例:We didn't have (=enjoy) a good time there yesterday.

      (昨天我們在那里玩得不愉快。)

      不過美式英語“have”作“有”的意義使用時也如一般動詞使用助動詞“do”,例如:

      例:I don't have brothers.

     。ㄎ覜]有兄弟。)

      例:We didn't have time enough to finish the work.

     。ㄎ覀儺敃r沒有足夠的時間完成那件工作。)

      (2)使用“not”以外的否定詞

      “not”以外的否定詞有:

     。╝)副詞:never,seldom,hardly,little,neither,etc.

      例:She never comes to school late.

     。ㄋ蠈W從不遲到。)

      例:She seldom comes to see me.

     。ㄋ怀砜次摇#

     。╞)形容詞:no,few,little,etc.

      例:I have no brothers.(=I don't have brothers.)

     。ㄎ覜]有兄弟。)

      例:He has few friends in Hong Kong.

     。ㄋ谙愀蹘缀鯖]有朋友。)

     。╟)代詞:nothing,nobody,none,etc.

      例:I know nothing about computer.

     。▽τ陔娔X我一竅不通。)

      I found nobody about computer.

     。ㄔ谀菞澐孔永镂覜]看到任何人。)

      注:1.有些文法書認為“Not +V”為句子否定法,是否定句,而“no +n.或如nothing,etc.”為單詞否定法,不宜稱為否定句。例如:

      例:He doesn't have brother.(否定句)

      He has no brothers.(單詞否定,但應視為肯定句,因為謂語動詞是肯定。)

      請注意下面兩句的意義上的區別。

      例:He doesn't have a breakfast.

      He has not a breakfast.

     。ㄋ怀栽绮!穸ň洌

      例:He has no breakfast.

      (他沒有早餐可吃!獑卧~否定,肯定句)

      2.否定也可以借用前綴或后綴來表達,例如:

      例:He is honest.

      (他是誠實的。)

      He is dishonest.(=He in not honest.)

      (他不誠實。)

      例:They have children.

     。ㄋ麄冇行『。)

      They are childless.(=The don't have children.)

     。ㄋ麄儧]有小孩。)

      Drilling Square

      Ⅰ.請把下列各句改為否定句。

      1.Amy is the best student in my class.

      2.Jim has a lot of stamps.

      3.John studies very hard this semester.

      4.Bill broke the glass yesterday.

      5.Did he write you a letter last week?

      6.Open the window, Peter.

      7.We had a walk after dinner yesterday.

      Ⅱ.請把下列各句改為肯定句。

      1.She doesn't have to go to school today.

      2.My father doesn't go to his office by bus.

      3.I didn't see him yesterday.

      4.Mr. Smith won't teach us next year.

      5.You need not do it today.

      6.She cannot run very last.

      7.She doesn't wash her clothes herself.

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