【正文】 ks. She likes him. The dog likesbones.★變疑問句在句首加does, 動(dòng)詞變?yōu)樵?Does he like books? Does she like him? Does the dog like bones?★變否定句在主語及動(dòng)詞之間加doesn39。t, 動(dòng)詞變?yōu)樵?，原句中的?dòng)詞不再有第三人稱變化。 He doesn39。t like books. She doesn39。t like him. The dog doesn39。t like bones.★肯定回答及否定回答： Yes, he does. / No, he doesn39。t. Yes, she does. / No, she doesn39。t Yes, it does. / No, it doesn39。t.注意：第三人稱單數(shù)形式一般在動(dòng)詞后面加S，不要和名詞復(fù)數(shù)混淆，變否定句或疑問句時(shí)名詞復(fù)數(shù)沒有任何變化。(2)其他人稱及復(fù)數(shù)名詞 I want to have a bath. We have some meat. The students likesmartteachers.★變疑問句在句首加do Do you want to have a bath? Do we have any meat? Do the students like smart teachers?★變否定句在主語和動(dòng)詞之間加don39。t. You don39。t want to have a bath. We don39。t have any meat. The students don39。t like smart teachers.★肯定回答及否定回答 Yes, I do. / No, I don39。t. Yes, we do. / No, we don39。t Yes, they do. / No, they don39。t.新概念英語第一冊語法總結(jié)：現(xiàn)在進(jìn)行時(shí)表示現(xiàn)在正在進(jìn)行的動(dòng)作構(gòu)成：主語＋be動(dòng)詞＋動(dòng)詞的現(xiàn)在分詞＋其它成分 We are having lunch. 　He is reading a book.　　The dog is running after a cat. 　The boys are swimmingacrossthe river.★變疑問句將be動(dòng)詞移到句首　　Are we having lunch? 　Is he reading a book?　　Is the dog running after a cat? 　Are the boys swimming across the river?★變否定句在be動(dòng)詞后面加 not　　We are not having lunch. 　He is not reading a book.　　The dog is not running after a cat. The boys are not swimming across the river.★特殊疑問句：what, which, how, where, who, etc.　　疑問詞＋動(dòng)詞＋主語＋現(xiàn)在分詞　　What are you doing? What is she doing? 　What is the dog doing?沒有進(jìn)行時(shí)的動(dòng)詞（必背）表示狀態(tài)，思想，感情和感覺的動(dòng)詞不能表示正在進(jìn)行的動(dòng)作：1. 表示感覺，感官的詞　see, hear, like, love, want 2. have, has當(dāng)“擁有”講時(shí)沒有進(jìn)行時(shí)新概念英語第一冊語法總結(jié)：現(xiàn)在完成時(shí)構(gòu)成：主語+助動(dòng)詞have, has+過去分詞用法：1） 表示過去發(fā)生的和現(xiàn)在有某種聯(lián)系的動(dòng)作，常和just, usually, already, since等時(shí)間副詞連用。　　I have just had lunch. （飽了，不用再吃了。）　　He has had a cup of tea.（不渴了，不用再喝。）　　They have already had their holiday. （不能再度假了。）　　The boy has already read the book. （已經(jīng)知道書的內(nèi)容了，不用再看了。）2） 詢問別人是否做過某事一般用現(xiàn)在完成時(shí)：　　Have you finished your homework? 　Have you been to Beijing? Have he seen the film?3） 表示開始于過去并持續(xù)到現(xiàn)在的動(dòng)作　　I have lived in Beijing for twenty years. 　I have worked for this school for 1 year.4） 表示一種經(jīng)歷，經(jīng)驗(yàn)：去過…地方，做過…事情，經(jīng)歷過…事情　　I have never had abath. I have never seen a film.　　I have never been to cinema. I have ever been to Paris.　　Have been to表示去過，have gone to 表示去了　　I have been to London.（人已經(jīng)回來） 　　He has gone to London.（人還在那里）5） 表示一種結(jié)果， 一般不和時(shí)間副詞聯(lián)用　　I have lost my pen. I havehurtmyself.　　He has bee a teacher. 　She has broken my heart.句型變化：★變疑問句將助動(dòng)詞移到句首，變否定句在助動(dòng)詞后面加not.　　Have you lost your pen? I have not lost my pen.★肯定回答及否定回答　 Yes, I have. / No, I have not.★特殊疑問句 What have you done? What has he done?一般過去時(shí)與現(xiàn)在完成時(shí)的區(qū)別：　　凡是有明確的表示過去的時(shí)間狀語的句子為過去時(shí)。　　注意：有些動(dòng)詞表示的動(dòng)作有一個(gè)終點(diǎn)，不能再延續(xù)，因此不能和表示一段時(shí)間狀語連用?！　″e(cuò)：I’ve left Beijing for 3 days.　　對：I left Beijing 3 days ago. I have been away from being for 3 days.新概念英語第一冊語法總結(jié)：一般過去時(shí)表示過去發(fā)生的動(dòng)作或事件，常和表示過去的時(shí)間狀語連用，如yesterday, last night, the day before yesterday, 3 days ago...含有be動(dòng)詞的句子，將be動(dòng)詞變?yōu)檫^去式。am, is的過去式為was, are的過去式為were：　　I was at thebutcher39。s. You were a student a year ago.　　The teacher was very beautiful ten years ago.★變疑問句將be動(dòng)詞移動(dòng)到句首　　Were you at the butcher39。s? 　Were you a student a year ago?　　Was the teacher very beautiful ten years ago?★變否定句在be動(dòng)詞后面加not　　I was not at the butcher39。s. 　You were not a student a year ago.　　The teacher was not very beautiful ten years ago.★肯定回答否定回答　　Yes, I was. / No, I was not.