1、陳述句的否定形式1、用not與謂語動詞連用來表示否定 not的縮寫式為nt直接在肯定句上加not；適用于絕大多數(shù)句子，not應(yīng)加在謂語動詞部分的第一個詞（助動詞、情態(tài)動詞、be動詞、表示“擁有”的have）后，并常可與該詞縮寫成一體。be動詞的否定句a.)句型：主語+be動詞+notI wasnt good at English. / He isnt hungry.b.)進行時和被動語態(tài)（現(xiàn)在時、過去時、進行時）都有be動詞，所以它們的否定句與be動詞的否定句同形。They arent cleaning the room.(現(xiàn)在進行時) The child was not looked aft

2、er.(過去時的被動語態(tài))這個孩子以前沒有被照顧過。c.)將來時（will，shall）、完成時及情態(tài)動詞的被動語態(tài)不能用be動詞的否定句型。They will not be sent to the front.（ ）他們將不會被送到前線。They will be not sent to the front.（）情態(tài)動詞的否定句句型：主語+情態(tài)動詞+not+動詞原形I can not do it myself.You mustnt take the books out.一般動詞的否定句句型：主語+do（does，did）+not+動詞原形注意：否定式的縮略形is not isnt are no

3、t arentwas not wasntwere not werentdo not dontdoes not doesntdid not didntcan not cantwill not wontmust not mustnthave not haventhas not hasnthad not hadntam not 無縮寫形式，應(yīng)為Im not 形式。He doesnt do his homework every day.他不是每天都做作業(yè)They didnt have the class-meeting yesterday.They dont live in Shanghai.現(xiàn)在完成

4、時的否定句句型：主語+have（has）+not+動詞的過去分詞I havent finished reading the book yet.這本書我還沒讀完。He hasnt had his breakfast yet.過去完成時的否定句句型：主語+had+not+過去分詞He hadnt finished reading the book by the end of last month.截至上月末，他還沒看完這本書。注意：have表示“擁有”時，其否定句可以在have后直接加not，也可以在do、does、did的后面加not，此時have用原形。I havent a pen.=I do

5、nt have a pen.我沒有鋼筆。He hasnt a shirt.=He doesnt have a shirt.2、用具有否定意義的詞來表示否定這類詞有no（不，沒有）none（無人，沒有任何東西）nobody（沒人，誰也不）nothing（沒有東西，什么也沒有）nowhere（哪兒也不）nohow（絕不，毫不）neither（兩者皆不）never（永不，從不）dislike（不喜歡）disagree（不同意）useless（沒有用）unimportant（不重要）及短語out of，far from,tootoNo one is in the classroom.教室里沒人。I l

6、ike neither.兩個我都不喜歡。He never tells a lie.他從不撒謊。The book is useless.這本書沒有用。She dislikes him.她不喜歡他。The machine is out of work.這臺機器不能工作了。He is too young to go to school.他太小，還不能上學(xué)。3、否定中心轉(zhuǎn)移（1）形式上否定主句，意義上否定賓語從句；這類動詞有think，believe，suppose，feel，expect等：I dont think he has time to play with me.我想他沒有時間和我玩。動詞h

7、ope不發(fā)生否定中心轉(zhuǎn)移：I hope you werent ill.我想你沒生病吧。（2）形式上否定謂語，意義上狀語：I didnt come by bus.我不是坐車來的。This great victory has not been won easily.這偉大的勝利來之不易。4、半否定（1）總括性代詞、形容詞或副詞等和not連用時，表示半否定（也稱部分否定）；這類總括詞有all（一切，全體）both（二者，兩）each或every（每個，人人）everyone（每個人，人人）everything（每件事，每件東西）everywhere（每個地方，各地）always（總是）altoget

8、her（全體）wholly（全部）等：Both are not correct.(或Not both are correct.) 并非兩個都對。（只有一個對）比較：Neither is correct。兩個都不對。Such a thing cant be found everywhere.這種事并非到處可見。Such a thing can be found nowhere.（或Such a thing cant be found anywhere. ）這種事什么地方也見不到。總括性單詞和帶有否定意義的前后綴的單詞連用時，謂語動詞使用肯定式，意思為完全否定：Both are useless.兩

9、者都沒用。We all dislike him.我們都不喜歡他。（2）具有半否定意義的詞可構(gòu)成半否定句，這類半否定詞有hardly（幾乎不）seldom（很少）little（幾乎沒有）few（很少）nearly加否定詞（幾乎沒有）almost加否定詞（幾乎不）等：I can hardly(或 scarcely) recognize you.我?guī)缀跽J(rèn)不出你來了。He is seldom late.他很少遲到。Few people could do it. 當(dāng)時很少有人能干這事。5、雙重否定雙重否定意為同一句中有兩處具有否定含義。常譯作“無不”或“沒有不”；有時也譯作肯定句，但比肯定句語氣含蓄。A

10、 bird cant fly without wings.鳥沒有翅膀不能飛。Nobody is absent from the meeting.參加會議的人都到齊了。I could not help laughing when I saw it.當(dāng)我看到這情景時，忍不住笑起來。（could not help doing sth 忍不住做某事）6、局部否定局部否定意為被否定的不是全句而是句子的一部分，常見的有：（1）“not+非謂語動詞”只否定非謂語動詞：Tell Li Ping not to open the door.告訴李萍別開門。（2）介詞except, but, except for,

11、 apart from, beyond等，只否定自己的 賓語：We went except(或but) him.除他（沒去）外，我們都去了。We didnt go except him.除他（去了）以外，我們都沒去。習(xí)題1、I go to work by car. I _ _ to work by car. 2、You like these movies You _ _ these movies. 3、Lee has lunch at two oclock Lee _ _ lunch at two oclock.4、 Mr crane works in a restaurant Mr cran

12、e _ _ in a restaurant. 5、They go to visit the teacher They _ _ to visit the teacher .6、She is watching TV now.7、The cat runs fast.8、My grandpa gives me a hot dog.9、I have a ball.10、I am listening to music.11、Sarah can clean the classroom.12、There are some flowers in the vase.13、We need some milk.14、Su Hai and Su Yang live in a new house.15、Take the chair to the door.16、He did the housework yesterday.17、He does well in maths.18、Give me a