一般现在时变否定句的规则.
(a) 含有 am is are 的句子,变否定句时,
只需在am is are 后加not.
例1 This is a book.
否定句 This is not a book .
例2 I am a teacher .
否定句I am not a teacher .
例3 These are pens .
否定句These are not pens .
(b) 含有实义动词的句子，变否定句分两步。
（1）如果主语是第三人称单数时，要在实义动词前加doesn't,后面的动词用原形。
例1 He eats an apple.
否定句 He doesn't eat an apple.
例2 Jim does his homework.
否定句 Jim doesn't do his homework.
例3 Marry goes to school.
否定句Marry doesn't go to school.
(2) 如果主语不是第三人称单数时，只需在实义动词前加don't.
例1 I teach English.
否定句 I don't teach English.
例2 They go to school.
否定句 They don't go to school.
例3 We sing a song.
否定句 We don't sing a song.
(c) 含有情态动词的句子,变否定句时, 只需在情态动词后加not.
例1 I can dance.
否定句 I can not dance.
或 I can't dance.
例2 They can speak English.
否定句They can not speak English.
或 They can't speak English.
例3 He must go home.
否定句 He must not go home.
或 He mustn't go home.
例4 He must be on the playground.
He can not be on the playground.
析：当must be用来表示推测，有“一定”的含义时，
否定式要用can not.
例5 You must say something at the mecting.
You needn’t say anything at the mecting.
析：当“must+行为动词”用来表示“必须”的含义时，
其否定式可用needn’t 或mustn't表示“不需要”，“不必”，
语气委婉，must not表示“禁止”，“千万别”语气生硬。
例6 You may come in now.
You mustn't come in now.
析：may作为情态动词表示“可以”时，
其否定式用must not,而不用may not.
例7 He may watch TV .
He mustn't watch TV.
注意:
(1) 见到some 变否定句时,要换成any.
例1 I eat some apples.
否定句 I don't eat any apples.
例2 He has some books.
否定句 He doesn't have any books.
例3 He does his home work.
否定句 He doesn't do his home work.
(2) 见到and 变否定句时,要换成or.
例1 There is some air and water on the moon.
否定句 There isn't any air or water on the moon.
例2 He has some brothers and sisters.
否定句 He hasn't any brothers or sisters.
例3 He eats apples and oranges.
否定句He doesn’t eat apples or oranges.
(3) 见到too和also变否定句时,要换成either.
例1Tom goes to school too.
否定句 Tom doesn’t go to school either.
too和also用于肯定句中时，否定句中用either 替换。
（4 见到already变否定句时,要换成yet。
例1 He has had supper already.
He hasn’t had supper yet.
随着对谓语动词的否定，某些副词也要作相应的变动。
一般现在时精炼
一将下列句子变否定句。
例1 I am a boy.
例2 You are a girl.
例3 He is a teacher.
例4 Jim is English.
例5 These are bikes.
例6 Those are maps.
例8 We are Chinese.
二将下列句子变否定句。
例1 I’m a boy.
例2 You’re a girl.
例3 He’s a teacher.
例4 It’s a pen.
例5 These are some bikes.
例6 Those are maps and pencils.
例7 They’re some buses and cars.
例8 She is your teacher.
三将下列句子变疑问句。
例1 I am a boy.
例2 You are a girl.
例3 He is my teacher.
例4 Jim is our English.
例5 These are some bikes.
例6 Those are my maps.
例7 They are some buses.
例8 We are Chinese.
四将下列句子变成疑问句。
例1 I’m a boy.
例2 You’re a girl.
例3 He’s my teacher.
例4 It’s a pen.
例5 These are some bikes.
例6 Those are maps and pencils.
例7 They’re some buses and cars.
例8 She is your teacher.
五将下列句子变否定句。
例2 They go to school.
例3 We sing a song.
例4 He spells it.
例5 She goes to school.
例6 He does his homework..
例7 They do their homework.
例8 I do my homework.
六将下列句子变否定句。
例1 He teaches my English.
例2 They speak English and French.
例3 We eat some apples.
例4 Jim spells it.
例5 She goes to our school.
例6 He does some homework..
例7 They do their homework.
例8 We do some homework.
七将下列句子变疑问句。
例1 I teach English.
例2 They go to school.
例3 We sing a song.
例4 He spells it.
例5 She goes to school.
例6 He does his homework..
例7 They does their homework.
例8 I do my homework.
八将下列句子变疑问句。
例1 He teaches my English.
例2 They speak English and French.
例3 We eat some apples.
例4 Jim spells it.
例5 She goes to our school.
例6 He does some homework..
例7 They do their homework.
例8 We do some homework.
九将下列句子变否定句。
例1 I can dance.
例2 They can speak English.
例3He must go home.
例4 He must be on the playground. 例5 You must say something at the mecting.
例6 You may come in now.
例7 He may watch TV .
例8 We need speak English.
十将下列句子变否定句。
例1 I can dance and sing.
例2 They can speak some English.
例3You must go home.
例4 They must be on the playground. 例5He must say something at the mecting.
例6 Jim may come in now.
例7 They may watch TV .
例8 We need speak English and English.
十一将下列句子变疑问句。
例1 I can dance.
例2 They can speak English.
例3He must go home.
例4 He must be on the playground.
一般现在时的否定句 一、一般现在时变否定句的规则. 一）、主语＋be动词 含有 am is are 的句子,变否定句时,只需在am is are 后加not. 【例】1、This is a book.否定句This is not a book . 2、I am a teacher . 否定句I am not a teacher . 3、These are pens . 否定句These are not pens . 二）、主语＋实义动词 含有实义动词的句子，变否定句分两种。 1、如果主语是第三人称单数时，要在实义动词前加doesn't,后面的动词用原形。【例】1、He eats an apple. 否定句 H e doesn't eat an apple. 2、J im does his homework.否定句Jim doesn't do his homework. 3、Marry goes to school.否定句Marry doesn't go to school. 2、如果主语不是第三人称单数时，只需在实义动词前加don't. 【例】1、I teach English. 否定句I don't teach English. 2、They go to school. 否定句They don't go to school. 3 、We sing a song. 否定句We don't sing a song. 三）、主语＋情态动词 含有情态动词的句子,变否定句时, 只需在情态动词后加not. 【例】1、I can dance.否定句I can not dance. 或I can't dance. 2、They can speak English.否定句They can not speak English. 或They can't speak English. 3、He must go home. 否定句He must not go home. 或He mustn't go home. 【注意】 1、He must be on the playground.He can not be on the playground. 析：当must be用来表示推测，有“一定”的含义时，否定式要用can not. 2、You must say something at the mecting. You needn’t say anything at the mecting. 析：当“must+行为动词”用来表示“必须”的含义时，其否定式可用 needn’t 或mustn't表示“不需要”，“不必”，语气委婉，must not 表示“禁止”，“千万别”语气生硬。 3、You may come in now. You mustn't come in now. 析：may作为情态动词表示“可以”时，其否定式用must not,而不用may not. 四）、注意
一、陈述句变一般疑问句的几点技巧 1、如果所给的陈述句中含有be动词（am/ is /are/ was /were)、情态动词(can/may/could/would will/shall等词时）变一般疑问句时，只将其提到句子的首位并大写第一个英文字母，其余的照抄不变，遇到some改为any, my改为your, I改为you. 2、如果所给的陈述句中没有be动词（am/ is /are/ was /were)、情态动词(can/may/could/would will/shall等词时）而是有行为动词，变一般疑问句时，首先要根据主语和时态来判断。 a.当所给的句子的时态为一般现在时态且主语为第一、二人称或复数人称时则在句子首位直接加Do,其余照抄不变，遇到some改为any, my改为your, I改为you. b.当所给的句子的时态为一般现在时态且主语为第三人称单数时，则在句子首位直接加Does,原句中的动词恢复原形，其余照抄不变，遇到some改为any, my改为your, I 改为you. c.当所给的句子的时态为一般过去时态，则在句子首位直接加Did,原句中的动词恢复原形，其余照抄不变,遇到some改为any, my改为your, I改为you. 二、肯定句变为否定句的几点技巧 1.如果所给的肯定句中含有be动词（am/ is /are/ was /were)、情态动词(can/may/could/would will/shall等词），则直接在be动词、情态动词后加not,遇到some 改为any, a lot of/lots of对应的改为many或much. 2.如果所给的肯定句中没有be动词（am/ is /are/ was /were)、情态动词(can/may/could/would will/shall等词），而是有行为动词时，则根据主语和时态来判断。 a.当所给的句子的时态为一般现在时态且主语为第一、二人称或复数人称时则在原动词前，加don't其余照抄不变，遇到some改为any, a lot of/lots of对应的改为many或much. b.当所给的句子的时态为一般现在时态且主语为第三人称单数时，则在原动词前加
一般现在时训练题经典 一、一般现在时 1．Xiao Ming never ________ home on foot. She often takes the subway. A. go to B. goes to C. walks D. goes 【答案】 D 【解析】【分析】句意：小明从不不行回家，他经常乘地铁。词组：go home回家。主语Xiao Ming 是第三人称单数，故用动词后加-s，因此选D。 【点评】考查一般现在时的第三人称单数形式。 2．I think joining the English club ________ the best way to improve your English. A. are B. was C. is D. were 【答案】 C 【解析】【分析】句意：我认为加入英语俱乐部是提高英语水平的最好方法。描述客观事实用一般现在时，主语是动名词joining，谓语是单三式，故be用is，故选C。 【点评】考查时态，注意主谓一致的用法。 3．She _____ out alone at night. A. dare not to go B. dares not go C. doesn't dare to go D. doesn't dares go 【答案】 C 【解析】【分析】句意：晚上她不敢一个人出去。dare可以作情态动词也可以作行为动词，作情态动词时，后面直接跟动词原形，没有人称与数的变化，构成否定时直接在dare 后加not，作行为动词时后跟动词不定式，构成否定需要助动词，故答案是C。 【点评】考查dare的用法，注意dare做情态动词和行为动词的用法上的区别。 4．Will you get wet if I ______ the experiment? A. will do B. do C. does D. did 【答案】 B 【解析】【分析】句意：如果我做实验，你会淋湿吗？if引导的条件状语从句，时态是主将从现，从句主语是 I，故谓语是动词原形，故选B。 【点评】考查时态，注意f引导的条件状语从句，时态是主将从现的用法。 5．Not only Li Ming but also his parents ______ in Canada now. A. is B. are C. was D. were 【答案】 B 【解析】【分析】句意：现在不仅李明，而且他的父母也在加拿大。根据now，可知时态是一般现在时，主语是his parents，复数，故用be动词用are，故选B。 【点评】考查动词辨析，注意be动词are的用法。
中考英语复习--肯定句/否定句/疑问句之变形技巧 一、肯定句改否定句 1、be动词后加not，诸如：is not(isn't)，are not(aren't)，was not(wasn't)，were not(weren't)，am not（无缩写）。 ◆ He is a student. 他是一个学生。--- He is not a student. 他不是一个学生。 ◆ They were watching TV then. 那时他们正在看电视。--- They weren't watching TV then. 那时他们没在看电视。 2、情态动词等后加not，诸如：can not(can't)，will not(won't)，should not(shouldn't)，must not(mustn't)，need(needn't)等。 ◆She can take care of herself. 她能照顾好她自己。--- She can not(can't) take care of herself. 她不能照顾好她自己。 ◆ You should go home. 你应该回家。--- You shouldn't go home. 你不应该回家。 3、若无法找到be动词或情态动词，就在已有动词前额外加助动词否定形式：don't/doesn't/didn't，同时将动词变原形。 ◆ She likes the room. 她喜欢这房间。--- She doesn't like the room. 她不喜欢这房间。 ◆We did our homework yesterday. 我们昨天做了作业。--- We didn't do our homework yesterday. 我们昨天没有做作业。 注：句中若有some ，须将其改成any。 ◆ I want some books. 我想要一些书。--- I don't want any books. 我不想要任何书。 ◆ There is some water in the cup. 杯子里有一些水。--- There isn't any water in the cup. 杯子里没有水了。 二、肯定句改一般疑问句（三步法） #1：把be动词（am/is/are...）或情态动词（can/will...）放在句首。若句中没有上述动词，就把助动词放在句首（do/does/did），同时将动词变原形。 #2：剩余部分照写。注：some须改成any，I或we均改成you，my或our均改成your。 #3：句点改成问号。 ◆ I can swim. 我会游泳。Can you swim? 你会游泳吗？ ◆ There is some water in the cup. 杯子里有一些水。Is there any water in the cup. 杯子里有水吗？ ◆ I studied hard. 我学习认真。Did you study hard? 你学习认真吗？
1. I am a student. I ____ ____ a student. 2. You are a good boy. You _____ a good boy. 3. He is KangKang. He _____ _____ KangKang. 4. We are workers. We _______ ______ workers. 5. It is a nice cat. It ______ a nice cat. 二．把下列句子变成否定句。 1. I have a book. I ______ ______ a book. 2. We like English. We ______ ______ English. 3. You go to school by bike every day. You ______ ______ to school every day. 4. I come from China, I _____ _____ from China. 5. They watch TV on weekends. They _______ _______ TV on weekends.
1. Jane likes eating apples. Jane _______ _______ eating apples. 2. He comes from England. He ______ _____ from England. 3. She has a wide mouth. She ______ ______ a wide mouth. 4. Tom plays computer game on school days. Tom ______ ______ computer game on school days. 5. My mother goes to work by bus . My mother ______ _______ to work by bus. 四．把下列句子变成一般疑问句。 1. I am a student. ____ ____ a student? 2. You are a good boy. ______ _____ a good boy? 3. He is KangKang. _____ _____ KangKang? 4. We are workers. _______ ______ workers? 5. It is a nice cat. _____ ______ a nice cat?
肯定句变否定句的基本方法 一、如果谓语中有情态动词、助动词或be，直接在它们后面加not构成否定句。 1.在含系动词be、助动词be, have, has, will, would, shall, should等之后直接加not，构成否定句。如： He is there. — He is not there. 他不在那儿。 I have finished my work. — I have not finished my work. 我的工作还没完成。 She will agree with you. — She will not agree with you. 她不会同意你的意见。 He will not go there. 他不会那里。 I am not a teacher. 我不是教师。 2.否定含情态动词的句子： a.在情态动词can, could, may, might, must, need, dare, had better, would rather的句子之后直接加not。如： (1) He can say so. — He can not say so. 它不会那样说。 (2) Students must smoke. — Students must not smoke. 学生不允许抽烟。 (3)You’d better go there now.—You’d better not go there now. 现在你最好不要去那里。 (4)I’d rather tell you the truth.—I’d rather not tell you the truth. 我倒想不告诉你真相。 (5) He dared ask his parents for money again. — He dared not ask his parents for money again. 他不敢向父母亲要钱。 I can not dance. 我不会跳舞。 b.在含情态动词ought to的句子，在ought to中的to前面加not，构成否定句。如： (1) You ought to bother him. — You ought not to bother him. 你不应该去麻烦他。 (2) You ought to waste your time. — You ought not to waste your time. 你不应该把时间浪费了。 c.在含情态动词used to的句子，可在used to中的to前面加not；也可在used前面加did not，同时将used 改为use。如： (1) He used to smoke in the past . — He used not to smoke in the past. 他过去不常抽烟。 (2) He used to live here. — He did not use to live here. 他原来常不住这里。 d.在含情态动词have / has / had to的句子，在have / has / had to前面加do not的适当形式, 同时将has / had 改为have。如： (1) You do have to stay here after school. — You do not have to stay here after school. 你不必放学后还呆在这里。 (2) He had to go to work yesterday. — He did not have to go to work yesterday. 他昨天不必去上班。 二、如果谓语中没有情态动词、助动词或be，在动词之前加do not (一般现在时第三人称单数用does not,过去时用 did not，并将原来的谓语动词改为原形) 。 (1) He likes classic music. — He does not like classic music. 他不喜欢古典音乐。 (2) She played table tennis yesterday afternoon. — She did not play table tennis yesterday afternoon. 她昨天下午没有打乒乓球。 You don’t look well today.你今天气色不好。 She does not know what to do. 她不知道做什么。
一、按照要求改写句子 （1）含行为动词的否定句：don’t/doesn’t+动词原形 1. Daniel watches TV every evening.(改为否定句) _______________________ 2. I do my homework every day. (改为否定句) _____________________________________ 3. She likes milk. (改为否定句) ___________________________ 4. Amy likes playing computer games. (改为否定句)_ ___________________________________________________ 5. We go to school every morning.(改为否定句) ____________________________ 6. He speaks English very well.(改为否定句)________________________ 7. I like taking photos in the park. (改为否定句) ___________________________ 8. John comes from Canada. (改为否定句) ____________________________ 9. Simon and Daniel like going skating.(改为否定句) _____________________________________________________ 12. I have many books. （改为否定句） _________________________ 13. Gao Shan's sister likes playing table tennis.（改为否定句） 14. She lives in a small town near New Y ork.（改为否定句） 15. I watch TV every day. （改为否定句）___________________________ 16. David has got a goal. （改为否定句）_________________________ 17. We have four lessons.（改为否定句）____________________________ 18. Nancy runs fast. （改为否定句）_________________________ 19. My dog runs fast. （否定句）______________ 20. Mike has two letters for him.（否定句）________ （2）含be 动词的否定句：isn’t / aren’t / am not+名词/形容词 1. She is always a good student. (改为否定句) 2. He is a student. (改为否定句) 3. I am tall. (改为否定句) 4.We are from Guangzhou. (改为否定句) 5.Lily and Mary are very friendly. (改为否定句)
一般疑问句 一般疑问句是疑问句的一种。它是指用yes（是）或no(否）来回答的句子。其结构是： 系动词be/助动词/情态动词+主语+其他成分 通常回答为： 肯定：Yes，+主语+提问的助动词. 否定：No,+主语+提问的助动词+not. 如: Are you from Japan﹖ Yes I am．/ No I’m not． Is her sister doing her homework now﹖ Yes she is． / No she isn't． Does he work in a bank﹖ Yes he does． / No he doesn't． Do you live near your school﹖ Yes I do． / No I don't． Can you speak French﹖ Yes I can． / No I can't． May I go home now﹖ Yes you may． / No you mustn't． 注意： 1．将陈述句变为一般疑问句时,如句中有be 动词（am/ is/ are）时，可直接将它们提至主语前。如主语为第一人称，应将其改为第二人称。如：I’m in Class 2Grade 1．→ Are you in Class 2Grade 1﹖ We’re watching TV．→ Are you watching TV﹖ 2．陈述句中有情态动词（can may must …)时,也可直接将它们提至主语前，即可成为一般疑问句。如： He can swim now．→ Can he swim now﹖ The children may come with us．→ May the children come with us﹖ 3．陈述句中只有一个实义动词作谓语且其时态为一般现在时，变为一般疑问句时要在句首加do或does 主语后的实义动词用原形。如： I like these animals．→ Do you like these animals﹖ She wants to go to the movies．→ Does she want to go to the movies﹖
1.肯定句、否定句的转换 2.双重否定句、陈述句的转换 双重否定句：就是否定两次,即表示肯定的意思，但必须有否定的意义在里面。（双重否定句的作用是加强语气。） 双重否定句与陈述句的转换：（类似于反问句）一、双重否定句 双重否定就是否定两次,即表示肯定的意思，但必须有否定的意义在里面。。 例如:“他不是不来”意思是他要来的。包括有双重否定的句子就是双重否定句。 比如: （1）我不得不承认那个本是我的. 分析：“不得不”就是双重否定这句话的原意为：我承认那个本是我的。 （2）幼儿园的小朋友没有一个不喜欢王老师。 “没有一个…不”就是双重否定词 这句话的原句为：幼儿园的小朋友都喜欢王老师。 （3）你不会不知道这件事。分析：“不
双重否定从字面上就知道，是一句话中有两个否定词语，表示肯定的意思。 双重否定句是相对于单纯否定句而言的，它用否定加否定的形式，表达肯定的语意。一般的语法书普遍认为，双重否定句的作用是加强语气。 在双重否定句中，有那么几个可以用： 不得不、不能不、难道……不…… 不可能不、 不会不、怎么会…… 不、不是不等 双重否定句主要有三种形式。 （1）、一种是两个否定副词连用，谓语前面加“不。。。不”，也就是负负为正的原理。可用“没有……不……”“不……不……” 如“我不能不被他感动得流下泪来。”又如：这种新产品质量好，价格也便宜。改为：这种新产品质量不能说不好，价格也不能说不便宜。 （2）、一种是一个否定副词加上一个否定意义的动词，
如“我们不能否认老一辈人的功劳。” （3）、再一种是一个否定副词（或否定意义的动词）加上反问语气。 如“他感人的事迹，叫我怎么不流泪呢？” 另外、把肯定句改为多重否定 表否定，使否定成分的个数成奇数个即可 例如：我们不得不承认太阳不是绕地球运行的。这三种句式中，否定副词（或否定意义的动词） 例如，“敢于这样做的人，难道不是一个英雄吗？”（《内蒙访古》），意思就是“是一个英雄”，但语气更强烈，强调了敢于这样做的人是一个“大大的英雄”。
一般现在时变否定句的规则. (a) 含有am is are 的句子,变否定句时, 只需在am is are 后加not. 例1 This is a book. 否定句This is not a book . 例2 I am a teacher . 否定句I am not a teacher . 例3 These are pens . 否定句These are not pens . (b) 含有实义动词的句子，变否定句分两步。 （1）如果主语是第三人称单数时，要在实义动词前加doesn't,后面的动词用原形。 例1 He eats an apple. 否定句He doesn't eat an apple. 例2 Jim does his homework. 否定句Jim doesn't do his homework. 例3 Marry goes to school. 否定句Marry doesn't go to school. (2) 如果主语不是第三人称单数时，只需在实义动词前加don't. 例1 I teach English. 否定句I don't teach English. 例2 They go to school. 否定句They don't go to school. 例3 We sing a song. 否定句We don't sing a song. (c) 含有情态动词的句子,变否定句时, 只需在情态动词后加not. 例1 I can dance. 否定句I can not dance. 或I can't dance. 例2 They can speak English.
一般现在时练习题一 用所给词的正确形式填空。 1. We often___________(play) in the playgound. 2. He _________(get) up at six o’clock. 3. __________you _________(brush) your teeth every morning. 4. What (do) he usually (do)after scho ol? He usuall (do) (h e) homework. 5. Danny (study) English,Chinese,Maths,Scienc e and Art an school. 6. Mike sometimes __________(go) to the park with his sister 7. At eight at night, she __________(watch) TV with his parents. 8. ________ Mike________(read) English every day? 9. How many lessons_________your classmate________(have) on Mond ay? 10. What time_________his mother_________(do) the housework? 改句子 1. Do you often play football after school? (肯定回答) 2. I have many books. （改为否定句） 3. Gao Shan’s sister likes playing table tennis. （改为否定 句） （改为一般疑问 句） 4. She lives in a small town near New York. （改为否定 句 （改为一般疑问 句） ( 划线提 问) 5. I watch TV every day.
(a) 含有am is are 的句子,变否定句时, 只需在am is are 后加not. 例1 This is a book. 否定句This is not a book . 例2 I am a teacher . 否定句I am not a teacher . 例3 These are pens . 否定句These are not pens . (b) 含有实义动词的句子，变否定句分两步。 （1）如果主语是第三人称单数时，要在实义动词前加doesn't,后面的动词用原形。 例1 He eats an apple. 否定句 He doesn't eat an apple. 例2 Jim does his homework. 否定句 Jim doesn't do his homework. 例3 Marry goes to school. 否定句Marry doesn't go to school. (2) 如果主语不是第三人称单数时，只需在实义动词前加don't. 例1 I teach English. 否定句 I don't teach English. 例2 They go to school. 否定句 They don't go to school. 例3 We sing a song. 否定句 We don't sing a song. (c) 含有情态动词的句子,变否定句时, 只需在情态动词后加not. 例1 I can dance. 否定句 I can not dance. 或 I can't dance. 例2 They can speak English. 否定句They can not speak English. 或 They can't speak English.
一般疑问句，否定句 课题一：一般疑问句general question 重点：辨别一般疑问句，掌握一般疑问句语法结构和使用方法。 难点：1.一般疑问句的句子结构。 2.一般疑问句和陈述句之间的转化。动词时态的变化。 教具准备：教学讲义练习题。 教学过程： 1.复习：P17,P32 重新朗读课文。复习单词和语法。 2.提出课题： Does...like...(doing)? Yes,...does./No,...doesn’t. Is/Are...(doing)? Yes,...is/are./No,...isn’t/aren’t. 由以上例句总结一下一般疑问句的定义:一般疑问句是疑问句的一种。它是一般只用yes （是）或no（否）来回答的句子。朗读一般疑问句时用升调。 3.教学步骤： a.举出更多例句. Eg1. 问句：Is this your pen？ 肯答：Yes，it is. 否答：No，it isn`t. Eg2. 问句：Are these your books？ 肯答：Yes，they are. 否答：No，they aren’t. Eg3. 问句：Can you speak English? 肯答：Yes，I can. 否答：No，I can’t. Eg4. 问句：Do you likeapple？ 肯答：Yes，I do. 否答：No，I don’t. b.总结一下一般疑问的句子结构及回答。（句子结构的记忆方法：就是讲前面2个词调换位置了。） Is/Are+主语+其他部分? 。。。是。。。？ Eg1. Is this your pen？
当只有一支笔的时候就用Is, 回答：Yes,it is/No,it isn’t . 当有两只及以上用时用Are,而且要讲这个（this）/那个（that）变为这些（these)/那些（those).笔要加s变成复数。 如：Are these/those your pens? 回答：Yes,they are/No,they aren’t. ② Can/Will+主语+V-原型? (后面动词都用原型） Eg. You can open the door→Can you open the door? You will go to school next Monday →Will you go to school next Monday ? ③Do/Does+主语+V-原型？ Eg. Do you likeapple？ Does Mary like cat? 第一，二人称（I,You）用Do; 第三人称(Mary）用Does Parents等复数也用Do. 举例:我需要现在回家吗？Do i need to go home now?回答： 你父母喜欢英语吗？Do your parents like English? Alice喜欢花吗？Does Alice like flower？ C.辨别以下是否为一般疑问句。 Are you a student? Is it his pet? What is that over there? Can you swim? Do you have a storybook? This is a toy bear,I think.
现在进行时 一、用所给动词的适当形式填空. 1. Look! The cat____________ (run) up the tree. 2. The twins__________ (have) breakfast. 3. ----___he ________ (clean) the blackboard? ----No, he isn’t. 4. Tom__________ (play) the piano in the room. Please ask him to come here. 5. Listen! They____________(sing)in the classroom. 6. My parents _______(watch)TV now. 7. Look. Three boys _______（run）. 8. What _______ your mother _______（do）now? 9. ______ your dog _______ now? （sleep） 10. _______ you _______（listen）to music? Yes, I am. 11. Look, Miss Chen _______ football.（play） 12. Now Class 3 and Class 4_______（have）a test. 13. Listen, someone _______（sing）in the classroom 14. ——Where is Zhang Yan? ——She _______（talk） with her teacher in the teacher’s office. 15.The boy __________________ ( draw)a picture now. 16.Listen！ Some girls _______________ ( sing)in the classroom . 17.My mother _________________ ( cook )some nice food now. 18.What _____ you ______ ( do ) now? 19.Look They _______________( have) an English lesson . 20.They ____________(not ,water) the flowers now. 21.Look! the girls ________________(dance )in the classroom . 22.What is our granddaughter doing? She _________(listen ) t o music. 23.It's 5 o'clock now. We _____________(have)supper now 24.______Helen____________(wash )clothes? Yes ,she is . 25.Nancy and I are __________ (make) a model plane. 26.Look, he is __________ (clean) the windows. 27.The boys ____________ (run) with the cat now. 28.I can’t_________ (skate), but I can _________ (ski). 29.The students are __________ (draw) in the classroom. 30.My sister and I like _________ (listen) to music. 31.My father ____________ (watch) TV in the bedroom now. 32.There _______ (be) a lamp near the sofa.
肯定句/否定句/疑问句之变形技巧 一、肯定句改否定句 1、be动词后加not，诸如：is not(isn't)，are not(aren't)，was not(wasn't)，were not(weren't)，am not（无缩写）。 ◆He is a student. 他是一个学生。--- He is not a student. 他不是一个学生。 ◆They were watching TV then. 那时他们正在看电视。--- They weren't watching TV then. 那时他们没在看电视。 2、情态动词等后加not，诸如：can not(can't)，will not(won't)，should not(shouldn't)，must not(mustn't)，need(needn't)等。 ◆She can take care of herself. 她能照顾好她自己。--- She can not(can't) take care of herself. 她不能照顾好她自己。 ◆You should go home. 你应该回家。--- You shouldn't go home. 你不应该回家。 3、若无法找到be动词或情态动词，就在已有动词前额外加助动词否定形式：don't/doesn't/didn't，同时将动词变原形。 ◆She likes the room. 她喜欢这房间。--- She doesn't like the room. 她不喜欢这房间。 ◆We did our homework yesterday. 我们昨天做了作业。--- We didn't do our homework yesterday. 我们昨天没有做作业。 注：句中若有some ，须将其改成any。
一、肯定句改否定句的方法——一步法 1、在 be 动词后加not。如： is not ， are not ， am not， was not， were not； 2、在 can，等后加not。如： cannot 3、上述都没有的，在动词前加助动词否定形式do not, does not.(don ’t/doesn’ t) 4、 some 改成 any。 二、肯定句改一般疑问句的方法——三步法 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。 2、把 can，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。例如：陈述句 :They are in the park.He can play the guitar.. 一般疑问句 :Are they in the park?Can he play the guitar? 把下列句子变成一般疑问句 1.I am listening to music. _______________________________________ 2.Mike is a student. _______________________________________ 3.Sarah can clean the classroom. ________________________________________ 4.They are in the zoo. ________________________________________ 5.There are some flowers in the vase. ________________________________________ 6.This is my sister. _________________________________________ 7.We are sweeping the floor. __________________________________________ 3、上述都没有的，在句首请助动词 Do/Does 帮忙，剩下的照抄，（ some 改成 any， my 改成your 等）句点改成问号。 例如：陈述句一般疑问句:I like the ducks.He likes the dogs. :Do you like the ducks?Does he like the dogs? 把下列句子改为一般疑问句。 1.We need some masks. _________________________________ 2.They like making the puppet. _________________________________ 3.Su Hai and Su Yang live in a new house. _________________________________________________ 4.I put a book on my head. _________________________________________________ 5.They sing “ In the classroomtogether”.