英语常见句型的变换规则.doc

英语常见句型的变换规则（适用于5.6.7年级学生） 教学目的：让学生掌握英语句型变换的基本方法。教学重点：了解并学会句型变换的一般规律.教学难点：对动词的理解和运用。一 四个常见句子及其变换方式。要求：（1）写出下面每个句子的否定句，（2）变成一般疑问句， (3) 对一般疑问句作肯定和否定回答， (4) 对划线部分提问1. Lucy and Lily are at home .2. Meimei is doing her homework .3. Tonny can sing eight English songs .4. Toms parents will visit his math teacher this evening .（注：此项任务由学生独立或讨论完成，让会做的学生口头说出答案和变换的方式，方法。）二 和学生一起总结规律：当句中有be动词（am,is,are,was, were）,助动词（do,does ,did,will,shall,have ,has,had）或者情态动词（can,may,must ,need,would,should等）时，（1）直接在这类词后面加not变成否定句。（注意把some改为any，其他不变）。（2）直接把这类词提前到句首变成一般疑问句。（注意大写首字母，第一人称变成第二人称，some改为any，句末加问号）。（3）对一般疑问句作肯定回答，形式为:Yes,主语（代词）+be动词助动词情态动词。(4) 否定回答形式为：No, 主语（代词）+be动词助动词情态动词+ not . （5）对划线部分提问时，先选择正确的疑问词代替划线部分放到句首，后接一般疑问句式。（划线部分不能再出现在句中）三 再次演练，巩固加强，熟练掌握上述方法。1 Kittys English book is over there.2 I am in Class 3,Grade 7.3 You may give them some money .4 We shall take the subway to the zoo tomorrow .四 三个常见句子及其变换方式。要求：（1） 写出下面每个句子的否定句，（2） 变成一般疑问句，(3) 对一般疑问句作肯定和否定回答，(4) 对划线部分提问1.The students have lunch at the school twice a week .2.His father works in a supermarket .3. The boy in yellow bought an interesting toy .（注：此项任务由学生独立或讨论完成，让会做的学生口头说出答案和变换的方式和方法。）五 和学生一起总结规律：当句中有实义动词（have，works,bought 等）时， (1) 在这类词前面加助动词的否定式（dont,doesnt或者didnt）变成否 定句。（注意把实义动词改为原形，some改为any，其他不变）。 （2） 直接在句首加助动词(do,does 或did)变成一般疑问句。（注意大写首字母，把实义动词改为原形,第一人称变成第二人称，some改为any，句末加问号）。（3） 对一般疑问句作肯定回答，形式为:Yes,主语（代词）+ 助动词(do,does 或did).（4） 否定回答形式为：No, 主语（代词）+ 助动词(do,does 或did) + not . （5）对划线部分提问时，先选择正确的疑问词代替划线部分放到句首，后接一般疑问句式。（划线部分不能再出现在句中）.六 再次演练，巩固加强，熟练掌握上述方法。1. She does her homework at 6:00 in the evening .2. I go to work by bus from Monday to Friday .3. Mr. Wang taught us Chinese two years ago .参考答案一 1. (1) Lucy and Lily are not (arent) at home .(2) Are Lucy and Lily at home?(3) Yes ,they are. No, they are not . (arent).(4) Where are Lucy and Lily ?2. (1) Meimei is not (isnt) doing her homework. (2) Is Meimei doing her homework ? (3) Yes ,she is . No, she is not . (isnt). (4) What is Meimei doing ?3. (1) Tonny can not(cant)sing eight English songs. (2) Can Tonny sing eight English songs ? (3) Yes ,he can . No, he can not . (cant). (4) How many English songs can Tonny sing ?4. (1) Toms parents will not(wont) visit his math teacher this evening . (2) Will Toms parents visit his math teacher this evening ?(3) Yes, they will. No, t hey will not . (wont).(4) Who will Toms parents visit this evening ?三. 1. (1)Kittys English book is not (isnt) over there. (2)Is Kittys English book over there ?(3) Yes ,it is . No, it is not . (isnt). (4) Whose English book is over there ?2. (1) I am not in Class 3,Grade 7.(2) Are you in Class 3,Grade 7 ?(3) Yes ,I am . No, I am not . (4) What class are you in ?3. (1) You may not give them any money .(2) May I give them any money?(3) Yes ,you may . No, you must nt(4) What may I give them?4. (1) We shall not take the subway to the zoo tomorrow .(2) Will you take the subway to the zoo tomorrow?(3) Yes ,we shall . No, we shall not .(4) When will you take the subway to the zoo ?四 . 1. (1) The students dont have lunch at the school twice a week. (2) Do the students have lunch at the school twice a week? (3) Yes ,they do. No, they dont (4) How often do the students have lunch at the school?2. (1) His father does not doesnt work in a supermarket. (2) Does his father work in a supermarket ? (3) Yes,he does. No,he doesnt. (4) Where does his father work ?3. (1) The boy in yellow didnt buy an interesting toy. (2) Did the boy in yellow buy an interesting toy ? (3) Yes,he did. No,he did nt. (4) Which boy bought an interesting toy?六1.（1）She does nt do her homework at 6:00 in the evening . (2) Does she do her homework at 6:00 in the evening ? (3) Yes,she does . No,she doesnt. (4) What time does she do her homework in the evening? 2. (1) I do nt go to work by bus from Monday to Friday .(2) Do you go to work by bus from Monday to Friday ?(3) Yes,I do.No, I dont.(4) How do you go to work from Monday to Friday ?3. (1) Mr.