小学涉及到的助动词主要是do,以及它的两种时态:does和did。 例:Does he work in the factory? 他是在这个工厂工作吗? Do you have a pen? 你有一支钢笔吗? He didn’t go to school yesterday. 他昨天没有去上学。 助动词do 的用法: 1)构成一般疑问句,例如: Do you want to pass the CET? 你想通过大学英语测试吗? Did you study German? 你们学过德语吗? 2) do + not 构成否定句,例如: I do not want to be criticized. 我不想挨批评。 He doesn't like to study. 他不想学习。 In the past, many students did not know the importance of English. 过去,好多学生不知道英语的重要性。 3)构成否定祈使句,例如: Don't go there. 不要去那里。 Don't be so absent-minded. 不要这么心不在焉。 说明: 构成否定祈使句只用do,不用did和does。 4)放在动词原形前,加强该动词的语气,例如: Do come to my birthday party. 一定来参加我的生日宴会。 I did go there. 我确实去那儿了。 I do miss you. 我确实想你。 5) 用于倒装句,例如: Never did I hear of such a thing. 我从未听说过这样的事情。 Only when we begin our college life do we realize the importance of English. 只有在开始大学生活时我们才认识到英语的重要性。 说明: 引导此类倒装句的副词有never, seldom, rarely, little, only, so, well等。 6)用作代动词,例如: ---- Do you like Beijing? --你喜欢北京吗? ---- Yes, I do. --是的,喜欢。(do用作代动词,代替like Beijing.) He knows how to drive a car, doesn't he? 他知道如何开车,对吧?
基本助动词: be, do, have, 他们没有词汇意义,只有语法作用,如协助构成进行体,完成体,被动态,否定句,疑问句等。 例如 He is giving a lecture. 他在作报告 He has made a plan. 他已经订了计划 The small animals are kept in the cages. 小动物都关在笼子里。
助动词协助主要动词完成以下功用: a. 表示时态,例如: He is singing. 他在唱歌。 He has got married. 他已结婚。 b. 表示语态,例如: He was sent to England. 他被派往英国。 c. 构成疑问句,例如: Do you like college life? 你喜欢大学生活吗? Did you study English before you came here? 你来这儿之前学过英语吗? d. 与否定副词not合用,构成否定句,例如: I don't like him. 我不喜欢他。 e. 加强语气,例如: Do come to the party tomorrow evening. 明天晚上一定来参加晚会。 He did know that. 他的确知道那件事。
介词分类: 一、表示地点位置的介词 (1)at, in, on, to, for at 表示在小地方;表示“在……附近,旁边”。 in 表示在大地方;表示“在……范围之内”。 on 表示毗邻,接壤,“在……上面”。 to 表示在……范围外,不强调是否接壤;或“到……”。 (2)above, over, on 在……上 above 指在……上方,不强调是否垂直,与below相对; over 指垂直的上方,与under相对,但over与物体有一定的空间,不直接接触。 on 表示某物体上面并与之接触。 例:The bird is flying above my head. 小鸟在我的头上飞。 There is a bridge over the river. 在河上有一座桥。 He put his watch on the desk.他把他的表放在了桌子上。 (3)below, under在……下面 under 表示在……正下方 below 表示在……下,不一定在正下方 例:There is a cat under the table. 桌子底下有一只猫。 Please write your name below the line. 请在横线下写上你的名字。 (4)beside,behind beside 表示在……旁边 behind 表示在……后面
二、表示时间的介词 (1)in,on,at在……时 A、in表示较长时间,如世纪、朝代、时代、年、季节、月及一般(非特指)的早、中、晚等。 如:inthe1950s, in1989, insummer, inJanuary, inthemorning等。 B、on 表示具体某一天及其早、中、晚。 如:on May 1st, on Monday, onNew Year’s Day, on a cold night in January, on a fine morning, on Sunday afternoon等。 C、at 表示某一时刻或较短暂的时间,或泛指圣诞节,复活节等。 如:at 3:20, at this time of year, at the beginning of, at the end of, at the age of, at Christmas, at night, at noon, at this moment等。 (2)after在……之后 “after+一段时间”表示过去的一段时间以后; “after+将来的时间点”表示将来的某一时刻以后。
三、其它常用介词 (1)about关于,附近,大约,周围,随身. I have bought a book about Shakespearean. 我买了一本有关莎士比亚的书。 There are about fifteen trees in the picture. 大约有十五棵树在图片里。 (2)across横过,对面,交叉,在……的对面 Can you swim across the river? 你能游过河吗? We live across the street. 我们住在街的对面。 (3)along沿着,顺着. They are walking along the river. 他们沿着河行走。 (4)by 被……,在……的近旁,在……之前,不迟于,以……为手段。 The class room was cleaned by the students. 教室由学生们打扫干净了。 Miss Lucy came to China by air. 露西小姐是乘飞机来中国的。 (5)for为……,因为……,至于……。 He works for this company. 他为这家公司工作。 She came back to the classroom for she had lef the books in the class room. 她返回到教室是因为把书留在了那里。 (6)from从……,来自……,因为…… Where are you from? 你是哪里人? He diedf rom an accident. 他死于一场事故。 (7)of……的,属于…… This is a map of China.这是一张中国地图。 (8)with使用、和……在一起 We write with a pen. 我们用笔写字。 Can you go to the park with me? 你能和我一起去公园吗? 注意:在last, next, this, that, some, every 等词之前一律不用介词。如:We meet every day.
小学常见介词: 1.on (1) 在------上面 The book is on the desk. (2) 在------(哪一天/星期)What do you do on Wednesday? (3) 在------(月、日)My birthday is on August 2nd. 2. in (1)在------里面 The pens are in the pencil-box. (2)在------(哪一年/月)His birthday is in October. He worked here in 1992. (3 ) 在------(地方) He works in Dongguan. (4 ) 在------之内 What are you going to do in 20 years? (5 ) 在------(早上、下午、晚上) I do morning exercises in the morning every day. I usually play basketball in the afternoon. I often do my homework in the evening. 3. under 在------底下 There is a ball under the bed. 4. near 在------附近 There is a book shop near our school. 5. in front of 在------前面 A boy is standing in front of the house. 6. beside 在------旁边 A football is beside the door. 7. next to 紧挨着 There is a bus station next to No. 13 Middle School. 8. over 在------正上方 A bridge is over the river. 9. on the left 在------左边 The bookstore is on the left. 10. on the right 在------右边 The hospital is on the right. 11. before 在……之前 Mike sits before me. 12. after 在------以后 He went home after school. 13. in the middle 在------中间 The road is in the middle. 14. at (1) 在------(小地方) I am at school today. I was at home yesterday. (2) 在------(点钟) I usually go to school at 8:00 am. (3)看一看 Look at the blackboard. (4) 在中午 at noon 15. behind 在------后面 There is a broom behind the door. 16.for (1)给 This present is for you. (2)为了 Thank you for telling me the way to the zoo. (3)作为 We have some chips and hamburgers for lunch. 17.to (1) 到 Take your sport shoes to the P.E class. (2) 致 Happy birthday to you. Give it to your friend. 18. from 来自 I am from China. = I come from China. 19. from --- to 从------到------ Line up from shorter to taller. We have class from Monday to Friday. 20. of ------的 He is a student of Kama School. 21. by (1)在------之前 We must be at home by 6 o’clock. (2)乘------交通工具 People can go to the moon by spaceship. I go to school by bus. 22.with (1) 用 I write a letter with a pen. (2) 和------一起 He went to Shenzhen with his parents. 23. between 在------与------之间 There is a football match between Class One and Class Three. 24. into 到------里 Sharks can dive into the deep cold water. 25. like (1)象------ The twins are like their father. (2)长相------怎样? What’s he like? 26. up 向上 Put up your hands if you have any questions. 27. down 向下 Put down all the books here. 28. about (1) 大约;关于 It’s about 6:00 now. (2) ------怎么样? What about---? How about---? 29. what for 为什么 But what for?
现在进行时: 表示动作发生的时间是“现在”,动作目前的状态是“正在进行中”。所谓“正在进行中”,是指在谈到这件事的时候,这个动作还在进行中。 现在进行时由“系动词am/ is/ are+动词-ing形式”构成。 例:We are reading the text. 我们正在读课文。 My sister is working in a hospital. 我的妹妹在医院工作。 They are watching TV now. 他们正在看电视。 What are you doing, Li Lei? 你现在正在干什么,李雷?
现在进行时的基本用法: A表示现在( 指说话人说话时) 正在发生的事情。 例:We are waiting for you.
B. 表示现阶段正在进行的动作,说话时未必正在进行。 例:Mr. Green is writing another novel. (说话时并未在写,只处于写作的状态。) 例:She is learning piano under Mr. Smith.
C.已经确定或安排好的但不确定会不会发生的将来活动。 I'm leaving for a trek in Nepal next week.(我下周要去尼泊尔旅行) We're flying to Paris tomorrow.(我们明天乘飞机去巴黎)
一般现在时与现在进行时的区别: 一、准确理解两种时态的主要含义: (一)一般现在时: 1.表示事物的本质特性或客观存在,没有时限性。 The table ____ soft。(feels) 表特性特征。 Japan ___ in the east of China。 (lives) 表客观事实 2.现阶段经常性、习惯性的行为,可带频率时间。 The shop closes at 7:30 p.m. Father doesn’t smoke. (习惯) 3.表说话时的状态,感觉或结果,一般用状态动词,如:It doesn’t matter. Does it hurt? (感觉结果) 4.特殊用法: -在条件、时间、让步从句中用现在时代替将来。 -If you go there,I’ll help you. —用在begin,come,go,leave,return,open,close 等短暂谓语动词表规定计划。 The plane takes off at 11:30. (不受主观支配的计划) -在剧本、解说、标题或there(here)开头的句中表进行 There goes the bell/Here comes Mr.Wang. I declare the meeting opens.(正在宣布) He meets the ball and hits back to No.2 (正在发生)
(二)现在进行时: 1.说话时正在发生,进行的动作 Look! Dark clouds are gathering . (正在发生) 2.表现阶段正在进行,但此刻不一定正在进行的事。 He usually gets up at 6:00,but this week he is getting up at 7:00. (现阶段正在进行,但说话时不一定在起床) 3.现在进行时的特殊意义 -表示主观打算常用于 go,come,leave,start,begin 等,位移、趋向动词。 How long are you staying here (准备停留) -表示眼前刚过去的语意即“话音刚落”,适用于tell,say,talk,discuss …. You don’t believe it You know I’m telling the truth. -表示安慰、关心、喜欢、讨厌等感情色彩。 He is always making noises in class. (讨厌) -在条件、时间、让步状语从句中表示将来正在进行。 Don’t bother him if he is reading this time tomorrow.
二、严格区分进行时与一般时的语义 1.持续动词的一般时表持续情况,经常性,习惯性行为或客观存在的事实,进行时表暂时性或有限时刻的持续。 2.短暂动词的一般时叙述事实,特征,能力而短暂动作进行时描述反复发生,即将发生或刚开始行为。 3.短暂动词和静态动词一般时表示实际情况客观状态、结果、特征、特性,进行时表未完成含开始或渐进之意。 The bus stops. (车停了-事实) The bus is stopping. (渐渐停下来) I love the job. (静态事实) I am loving the job. ( 渐渐爱上了) 4.come,go,leave,start,return,move,reach,sail,fall 等一般时态表客观规定计划,进行时表主观打算推测。 Flight 254 leaves at 5:30. (表客观规定计划) The plane is taking off an hour later.(主观判断) 5.现在进行时带always,continually, constantly, for ever等频率副词表感情色彩,一般现在时则没有此用法。