陈述句变成疑问句.ppt

1、陈述句变成一般疑问句,陈述句及一般疑问句的简单定义 何为陈述句？ 陈述或者表达某个事实或状态。 （He is a student. I m a doctor. The door is open. It is a beautiful city . She likes to swim . I like playing football. He works in a hospital . ) 何为一般疑问句？ 要用YES 或者 NO 回答的问句。通常以系动词或情态动词或助动词开头。(Are you a orstudent ? Is he a doctor ? Can I go to school o

2、n foot ? ),系动词、助动词、情态动词,系动词：小学阶段只需注意be动词（am, is ,are 及其对应的过去式was were。) 助动词：do , dose 及对应的过去式did。 情态动词：can shall will may 对应过去式 could should would might 等。,将陈述句变成一般疑问句步骤,1 句中有be动词或情态动词的情况，直接 将句中的be动词或情态动词提前，若有需要应在人称和数上发生相应变化。 a: 人称和数不变化 He is a student. Is he a student ? The door is open. Is the doo

3、r open ?,b:人称和数上发生变化？.,先将be动词或情态动词提前，考虑人称是否变化。 Im a student. Am I a student ? 错错！ 我是一个学生吗？ 是不是学生自己知道，所以问句不成立，变问句是别人问所以人称发生变化。 此时人称发生变化，数也发生变化。正确应为： Are you a student ?,操练句子：,I can go to school on foot . 先将be动词或情态动词提前 Can I go to school on foot ? 考虑人称是否变化。 Can you go to school on foot ? 在将陈述句变一般疑问句时此

4、时才完整。 如不是在陈述句变疑问句过程中，此句Can I go to school on foot , linda? 也正确。,I will go to Beijing this weekend . Will you go to Beijing this weekend ? She is a nurse . Is she a nurse ? They are my parent . Are they your parent ? He is my father . Is he your father ?,2、句中无be动词和情态动词的情况,当陈述句中无be动词及情态动词时，根据句中人称选用助动词

5、，此时助动词置于句首，并注意人称及动词的数有时也需要发生的变化。 助动词的选用，主语为第一、二人称或复数时用do，主语为第三人称或单数时用does。 I like playing football. Do you like playing football ?,例句：,I have a pet dog . Do you have a pet dog ? I go to school on foot . Do you go to school on foot ?,2、主语为第三人称时需注意,主语为第三人称时选用助动词does,此时谓语动词部分发生相应变化。 She likes to swim .

6、 Does she like to swim ? He works in a hospital . Does he work in a hospital ?,例句：,She has a pair of beautiful eyes . Does she have a pair of beautiful eyes? He teaches math in a school . Does he teach math in a school ?,Homework,1、He is a singer . 2、I have an english book . 3、She can go to school by bike . 4、They are my friend. 5、She wants to be a singer in t