小學五年級英語語法:過去完成時 結構:had+過去分詞 After she had finished her homework, she went shopping. They had sold the car before I asked the price. The train had left before I arrived at the station. After/before引導的時間狀語從句放在句首要在句子后面加逗號,,如果放在主句后則不用加,。 1.變疑問句將助動詞移到句首 Had she finished her homework? 2. 變否定句在助動詞后面加not She hadn’t finished her homework. 3. 肯定回答及否定回答 Yes, she had. No, she hadn’t. 4.特殊疑問句: What had she done? 小學五年級英語語法:現(xiàn)在完成時 構成:主語+助動詞have, has+過去分詞 用法: 2) 表示過去發(fā)生的和現(xiàn)在有某種聯(lián)系的動作,常和just, usually, already, since等時間副詞連用 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) 3) 詢問別人是否做過某事一般用現(xiàn)在完成時: Have you finished your homework? Have you been to Beijing? Have he seen the film? 4) 表示開始于過去并持續(xù)到現(xiàn)在的動作 I have lived in Beijing for twenty years. I have worked for this school for 1 year. 5) 表示一種經(jīng)歷,經(jīng)驗:去過…地方,,做過…事情,,經(jīng)歷過…事情 I have never had a bath. 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) 6) 表示一種結果,, 一般不和時間副詞聯(lián)用 I have lost my pen. I have hurt myself. He has become a teacher. She has broken my heart. 句型變化: ★變疑問句將助動詞移到句首,,變否定句在助動詞后面加not. e.g. 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? 一般過去時與現(xiàn)在完成時的區(qū)別: 凡是有明確的表示過去的時間狀語的句子為過去時 注意:有些動詞表示的動作有一個終點,不能再延續(xù),,因此不能和表示一段時間狀語連用 錯:I’ve left Beijing for 3 days. 對:I left Beijing 3 days ago. I have been away from being for 3 days. 小學五年級英語語法:過去式 含有be動詞的句子,, 將動詞變?yōu)檫^去式,,am, is的過去式為was,,are的過去式為were I was at the butcher’s. You were a student a year ago. The teacher was very beautiful ten years ago. ★變疑問句將be動詞移動到句首 Were you at the butcher’s? Were you a student a year ago? Was the teacher very beautiful ten years ago? ★變否定句在be動詞后面加not I was not at the butcher’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. Yes, you were. No, you were not. Yes, he/she was. No, he/she was not. ★特殊疑問句: What did you do? (必背) 不含有be動詞的句子,,將動詞變?yōu)檫^去式 I finished my homework yesterday. The boy went to a restaurant. The Sawyers lived at King Street a year ago. ★變疑問句在句首加did, 動詞變?yōu)樵?/SPAN> Did you finish your homework yesterday? Did the boy go to a restaurant? Did the Sawyers live at King Street a year ago? ★變否定句在主語和動詞之間加did not I did not finish my homework yesterday. The boy did not go to a restaurant. The Sawyers did not live at King Street a year ago. ★肯定回答及否定回答 Yes, I did. No, I didn’t. Yes, he did. No, he didn’t. Yes, they did. No, they did not. 小學五年級英語語法:現(xiàn)在進行時 表示現(xiàn)在正在進行的動作,。 構成: 主語+be動詞+動詞的現(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 swimming across the river. ★變疑問句將be動詞移到句首 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 swimming across the river. ★特殊疑問句:what, which, how, where, who, etc. 疑問詞+動詞+主語+現(xiàn)在分詞 What are you doing? What is she doing? What is the dog doing? 沒有進行時的動詞(必背) 表示狀態(tài),,思想,感情和感覺的動詞不能表示正在進行的動作 1. 表示感覺,,感官的詞 see, hear, like, love, want, 2. have, has當”擁有”講時沒有進行時 小學五年級英語語法:一般將來時 表示將來將要發(fā)生的動作,, 經(jīng)常和tomorrow, next year, the day after tomorrow, the year after the next, in five hours' time, etc. 表示將來的詞聯(lián)用。 結構:主語+助動詞will+動詞原形 I will go to America tomorrow. The pilot will fly to Japan the month after the next. Jack will move into his new house tomorrow morning. ★變疑問句將助動詞移到句首 Will you go to America tomorrow? Will the pilot fly to Japan the month after the next? Will Jack move into his new house tomorrow morning? ★變否定句在助動詞后面加not I will not go to America tomorrow. The pilot will not fly to Japan the month after the next. Jack will not move into his new house tomorrow morning. ★肯定回答及否定回答 Yes, I will. / No, I will not. Yes, he/she will. / No, he/she will not. Yes, he will. / No, he will not. ★特殊疑問句 What will you do? 小學五年級英語語法:特殊疑問句 表示疑問,,有疑問詞(在開頭),,回答有很多種可能。
小學五年級英語語法:一般疑問句 一般疑問句 如何將一個肯定的陳述句改為一般疑問句: 1,、看句中有無be動詞,,如有,把be動詞提到句首即可,。 2,、看句中有無情態(tài)動詞,如有,,把情態(tài)動詞提到句首即可,。 3、如上述二者都沒有,就應把助動提到句首,。分四個步驟: ?。?)肯定陳述句中本來是沒有助動詞的,要加上去,,位置在主語(某人或某物)后,,動詞前。 ?。?)確定助動詞用do還是does,,根據(jù)句中動詞,動詞是原形的助動詞就用do,,動詞是第三人稱單數(shù)的助動詞就用does ?。?)把助動詞后提到句首。 ?。?)原句中動詞假如發(fā)生變化就要恢復成原形,。 強調(diào)一點,有some的要考慮是否要用any,。 小學五年級英語語法:Be動詞用法 be動詞(am,、is、are)+not,、 情態(tài)動詞can+ not,、 助動詞(do、does) + not 如何將一個肯定的陳述句改為否定句: 1,、看句中有無be動詞,,如有,直接在be動詞后+ not,。 2,、看句中有無情態(tài)動詞,如有,,直接在情態(tài)動詞后+ not,。 3、如上述二者都沒有,,就應用助動詞+ not,。分四個步驟: (1)肯定陳述句中本來是沒有助動詞的,,要加上去,,位置在主語(某人或某物)后,動詞前,。 ?。?)確定助動詞用do、does,根據(jù)句中動詞,,動詞是原形的助動詞就用do,,動詞是第三人稱單數(shù)的助動詞就用does, ?。?)在助動詞后加not,。 (4)原句中動詞假如發(fā)生變化就要恢復成原形,。 強調(diào)一點,,有some的要考慮是否要用any。 小學五年級英語語法:人稱代詞和物主代詞
1、名詞 這里強調(diào)兩點:不可數(shù)名詞都默認為單數(shù),所以總是用is 名詞復數(shù)如何加后綴:
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來自: 昵稱10428426 > 《英語知識》