初中英语四大句式陈述句,疑问句,祈使句及感叹句 A. 陈述句 初中英语对陈述句的考察主要集中在肯定陈述句和否定陈述句两种。 a. 陈述句的肯定式。 I have already posted the pictures. They are teachers. I must go now . He was reading a magazine at 10:00 yesterday. b.陈述句的否定式。 (1)谓语动词是系动词be, 助动词have, will, shall, be或情态动词,只须在其后面加not构成否定句。 She isn’t a teacher . He hasn’t been to the zoo . I can not sing . (2)若谓语动词是实义动词,在实义动词前加上do not,第三人称单数现在时用does not,过去时用did not。 He didn’t send me an message . (3)由具有否定含义的词never, nobody, hardly, little, few, seldom, too…to等构成的否定句. Not all the books in our school library can be borrowed . B. 疑问句 英语中有四种疑问句:一般疑问句、特殊疑问句、选择疑问句和反意疑问句。 a.一般疑问句:以一个助动词、情态动词、动词be或have开始,语调为升调,通常要求以yes或no回答的疑问句。 (1)一般疑问句的基本结构: is, am, are, was, were+主语+表语 have, has, had+主语+宾语 can, may, must等+主语+行为动词或be… do, does, did+主语+行为动词 shall, will, have, has+主语+行为动词 (2)否定形式的疑问句,通常把助动词与not缩写,放在句首。构成回答: Aren’t you a teacher? Yes, I am .(不,我是) No, I am not .(对,我不是) b. 特殊疑问句:以疑问代词who, what, whom, whose, which或疑问副词when, where, why, how开头的疑问句。 (1) 如果疑问词在句中作主语或其修饰主语时,其语序如陈述句。 Who is on duty today ? Which book is me ? (2) 如果疑问词在句中不作主语或其不修饰主语,用“疑问词+一般疑问句”形式。 Where have you been ? c. 选择疑问句:提出两种或两种以上的情况,供回答者选择,并由or连用,但不能用Yes或no 来回答。 (1) 疑问句+选择成分1+or+选择成分2? Do you want coffee or tea ? Are you an Chinese or an American ? (2) 特殊问句+选择答案1+or+选择答案2? Who runs fast, Jerry , Tim or Lily ? d. 反意疑问句:陈述部分+提问部分。 (1) 前肯后否,前否后肯 前后人称、数和时态要一致,疑问部分要用代词 如果前面陈述句中有否定词:hardly, little, few, never, nothing, none , nobody, not, no 等,后面疑问句应该用肯定式。 My grandma used to be a teacher, didn’t she ? (2) 陈述句部分是复合句时,提问部分的主语和助动词要与主句一致。 He was reading when the teacher came in, wasn’t he ? (3)在“I think(guess, suppose, believe)+宾语从句”中,当主语是第一人称时,附加疑问句的主语和谓语应与后面宾语从句相一致;但若主语不是第一人称时,则附加问句与前面主句一致。 I don’t think he can pass the exam, can he ? He believed you had seen her before, didn’t he ? (4)在含有情态动词must 的句子中,若must 表示推测,提问用must后面的动词。若must表示有必要时,用needn’t。若mustn’t表示禁止时,提问用must。 He must be surprised, isn’t he ? You must go to Guangzhou, needn’t you? You mustn’t parking here, must you ? (5)陈述句部分为祈使句,疑问部分常用will you(表请求)。注:let’s 用shall we(包括说话人),let us 用will you(不包括说话人)。 Have a cup of tea, will you ? Let’s go now, shall we ? Let us go now, will you ? C. 祈使句 可表示请求、命令、劝告、建议等。(省主语,动词用原形) (1) let + 第一人称,第三人称+(not)动词原形。 Let me try another time . (2) 动词原形+其他成分 Listen to me carefully . (3) Don’t (never)+动词原形+其他成分。 Don’t look out of the window . (4) Do+动词原形+其他成分。 Do give him another chance .
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