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1、一、陈述句:是用来陈述一件事情或表示一种看法,可分为肯定句和否定句两种形式。 1、谓语动词是be动词(am, is are, was, were),助动词do, does, did, have, has, 情态动词will, would, must, should, need, can, could, ought to, may, might, shall ,dare等时,只要直接在这些词后面加not就构成否定形式。 eg. Lily has already read this new book. (改为否定句) Lily _ _ this new book _. 2、谓语动词是行为动词而又没
2、有助动词或情态动词时,必须在谓语动词前加助动词,一般现在时加助动词do ,第三人称单数加does,一般过去时加did,再和not构成否定结构。必须指出的是:dont, doesnt, didnt后都用动词原形。 eg.1)Jill has lunch at school every day. (改为否定句) Jill _ _ lunch at school every day. 2)The children had a good time at the party. (改为否定句) The children _ _ a good time at the party. 3)Rose didnt
3、drink any milk this morning.(改为肯定句) Rose _ _ milk this morning. 二、疑问句:是用来提出问题的句子。 A.一般疑问句:以be动词, have /has/do等助动词、can/may等情态动词开头,以yes或no来回答的问句。 它的基本结构是:Be/Have /Has/Did等助动词(包括情态动词)主语谓语(包括表语)?回答常用简略回答。 1、谓语动词是be动词、助动词、情态动词时,只要直接把这些词置于句首,句末改成问号。 eg. Theres something wrong with his bike.(改成疑问句) _ _ _ w
4、rong with his bike? 2、谓语动词是行为动词时,必须在句首加上助动词Do、Does(第三人称单数)、Did(过去式)加上这些助动词后,句子中谓语动词必须用原形。 eg. 1)Edison built a science lab himself when he was ten. (改成疑问句) _ Edison _ a science lab himself when he was ten? 2)Those Japanese like Chinese food.(改成疑问句) _ those Japanese _ Chinese food? 注意:在把肯定句改成否定句或一般疑问
5、句的时候,要注意句中是否有already、some、something、somebody等词,如果有也必须进行改变,already要改成yet,some、something、somebody等分别改成any、anything、anybody等。另外,在改成否定句的时候注意把too改成either, both改成neither, all改成none等.在改成一般疑问句的时候,常常把第一人称I、we改成第二人称you。 B.特殊疑问句:以疑问代词或疑问副词开头,提出疑问的句子。 它的基本结构是:特殊疑问词一般疑问句语序。但是如果疑问词在句子中作主语或作主语的定语,就用特殊疑问词陈述句语序。常用的疑
6、问词有:what, who(whom), whose,which,when,where,how,why等,回答时针对问句中的代词和副词来回答,不用yes或no来回答。 1)对指物名词或谓语动词提出疑问,疑问词用what The twins were making a kite when their mother came in. (划线提问) _ _ the twins _ when their mother came in? Mrs Turner asked her son to buy some eggs for supper. (划线提问) _ _ Mrs Turner ask her
7、son _ _or supper? 2)对名词前定语提出疑问,疑问词应用which,而且必须和名词连用。 Im going to take the shirt on the right.(划线提问) _ _ are you going to take? 3)对指人名词或代词提问用who,作宾语时提问用whom。 eg. Li Ping, they, his father 4)对物主代词和名词所有格提问用whose。 eg. Li Pings coatWhose coat my fatherWhose father 5)对具体时间提出疑问,如 in the morning, last Sunda
8、y等,疑问词用when;对具体几点钟提问,疑问词应用what time。 6)对具体地点提出疑问,疑问词应用where。 The pupils are having a picnic at the foot of the hill. (划线提问) _ _ the pupils having a picnic? 7)对表原因的从句提问,常见的有because引导的从句,疑问词应用why。 Xiao Cheng didnt go to the farm with us because he was ill. (划线提问) _ _ Xiao Cheng go to the farm with us
9、8)对方式或程度等提出疑问,用疑问词How。 eg. go by bike How do you. 9)对数量提出疑问,疑问词为How many,要注意how many必须跟名词的复数形式。 eg. two hundred sheep How many sheep 10)对价格提出疑问,疑问词用How much。 eg. I paid fifty yuan for the sweater. _ _ did you pay for the sweater? 11)对时间长度提出疑问,疑问词应用How long。 eg. Ive worked in that factory for two yea
10、rs. (划线提问)96中考题 _ _ _ you worked in that factory? 12)对时间频率,如 once a year, twice a week等提问,疑问词用How often。 13)对具体次数,如 once, twice, three times等提问,疑问词用How many times。 eg. _ did he call you the day before yesterday? Twice. 96中考题 A.What time B.How many times C.How much D.How long 14)对in一段时间提问,疑问词一般用How s
11、oon。 eg. Jane and her brother will finish the work in two hours. (划线提问) _ _ _ Jane and her brother finish the work? 15)对距离提出疑问,疑问词用How far。 eg. Its about two kilometres from here to the country.(划线提问) _ _ _ _ from here to the country? 16)另外,对日期、星期、天气等提出疑问,则分别用 Whats the date? What day is it ? 如果是过去时
12、间,就用was代替is。 Whats the weather like? 练习题 1)She does exercises at home in the evening.(改成否定句、一般疑问句) She _ _ exercises at home in the evening. _ she _ exercises at home in the evening? 2)He said something important at the meeting.(改为否定句,一般疑问句) He _ _ _ important at the meeting. _ he _ _ important at t
13、he meeting? 3)Itll take them three weeks to finish the work.(划线提问) _ _ _ it take them to finish the work? 4)I have to wash all the plates and things after meals.(划线提问) _ _ you have to wash all the plates and things? 5)The woman in the red coat is her mother.(划线提问) _ _ is her mother? 6) Li Ping spent
14、 twenty yuan on the dictionary.(划线提问) _ _ _ Li Ping _ on the dictionary?7)The workers visited the factory already.(改成否定句、一般疑问句) The worker _ _ the factory _. _ the worker _ the factory _? 8)Both of his parents are workers.(改成否定句) _ of his parents _ a worker. 9)He went to the park with his sister.(划线提问) _ _ _ he go to the