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1、-陈述句肯定句变否定肯定句变一般疑问句及特殊疑问句.-第 3 页一、陈述句:用于陈述事实和观点。包括肯定结构和否定结构,句末用句号。二、肯定句否定句:1.主语+系动词be + 表语。在be(amisarewaswere)后加not;如: The dog is playing in the room. The dog is not playing in the room.2. 主语 + 情态动词 + 动词原形 + 其他。在情态动词(can ,should,must ,would)后面加not;如:He can dance.He can not dance.3.主语+实义动词+其他。要借助助动词d
2、o , does, did;句中动词为原形的,加dont .如: I like apples. I dont like apples.句中动词为三单式的,加doesnt,并将三单式的动词还原成原形。 如:He likes apples. He doesnt like apples.时态为过去时的,要加didnt 而且动词过去式要改为原形,如:I went to school yesterday .I didnt go to school yesterday .注:肯定句中的some、something、somebody等在否定句中分别改成any、 anything、anybody等,alrea
3、dy要改成yet,too改成either, both改成neither, all 改成none等。如:There are some students in the classroom.There are not any students in the classroom.三、 肯定句一般疑问句三步法一般疑问句:只能用yes(是)或no(否)来回答的疑问句。一般结构:系动词be/情态动词/助动词+主语+其他成分通常回答:肯定:Yes,主语+提问的系动词be/助动词/情态动词.否定:No,主语+提问的系动词be/助动词/情态动词的否定形式. 如: Is she from America? 她来自美
4、国吗?-Yes, she is. / No, she isnt. 是的,她是。/不,她不是。 Can Lily speak Chinese? 莉莉会说中国话吗?-Yes, she can. /No, she cant. / 是的,她会。/ 不,她不会。-Sorry, I dont know. /对不起,我不知道Do you like English? 你喜欢英语吗?-Yes, I do. /No, I dont. 是的,我喜欢。/不,我不喜欢。步骤:1、 把be动词放在句首,剩下的照抄,(some 改成any,my改成your等)句点改成问号。如:They are in the park. A
5、re they in the park?2、 把can,should,must ,would等放到句首,剩下的照抄,(some 改成any,my改成your等)句点改成问号。如:He can play the guitar. Can he play the guitar?3、 上述都没有的,在句首请助动词Do/Does/Did帮忙,剩下的照抄,(动词还原成原形)(some 改成any,my改成your等)句点改成问号。如: I like the ducks. Do you like the ducks?He likes the dogs. Does he like the dogs?He we
6、nt to school yesterday . Did he go to school yesterday?巧记:见了be和can,快快提上前。动词为实义,do和does上前线。单三用does, 动词要还原。四、肯定句特殊疑问句(就划线部分提问)三步法特殊疑问句:以特殊疑问词开头,对陈述句中的某一部分提出疑问 / 进行发问,回答不用yes或no,要问什么答什么。一般结构:特殊疑问词+一般疑问句,即:特殊疑问词+系动词be/情态动词/助动词+主语+其他成分。步骤:第一步:先变一般疑问句;第二步:找合适的特殊疑问词代替划线部分;第三步:特殊疑问词提前放到句首,并大写,其余按顺序照抄,省略划线部分
7、。 如: I like taking photos.What do you like?注:1.若问的是主语或主语的定语时,语序不变,为特殊疑问词+剩余陈述句。 如:Li ming is not here today. Who is not here today? 今天谁没来?2.划线部分不能在特殊疑问句中出现。如:1. When did you arrive? 你什么时候到的?2. Who is behind the door? 谁在门后?3.Whose bag is this? 这个包是谁的?4.Where are you from ? 你来自哪儿?5. which season do you like best? 你最喜欢哪个季节?6.Why are you late? 你为什么迟到?7. What is this? 这个是什么?What is your father? 你爸爸是做什么的?(问职业)8. How are you today? 你今天怎么样? (问状况)How do you go to school every day? 你每天怎么去学校?(问方式)