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简介:
以下为课件内提取的文本内容,仅供参考: 英语时态 规则 动词原形 第三人称单数 一般动词在词尾 加-s,在清辅音后 读/S/,在浊辅音或 元音后读/z/;在t 后读/ts/,在d后 读/dz/. 以字母s,x,ch,sh 结尾的动词加-es 读/iz/.如果动词原 形词尾已有e,则加 s;以o结尾的动词 也加es,读/z/. 以辅音字母加y结 尾的动词,先变y为 I,再加-es,读/z/. help,make swim,get ride,know guess,fix teach,wash close,go fly,carry, study helps,makes,swims, knows, gets,rides. guesses,fixs, teaches,eashes, closes,goes. flies,carries, studies. 3、以一个辅音字母加一个元音字母结尾的重读闭音节单词, 要双写最后一个辅音字母再加 -ing 。如: Be(am/is/are) + doing 1、直接在动词原形后面加 -ing 。如: 2、以e 结尾的动词把 e 去掉加 -ing 。如: 现在进行时 read – reading cook – cooking talk– talking write --writing make -- making close -- closing run--running put--putting swim--swimming 双写加-ing的现在分词识记口诀: 让我们停止游泳,放下跑步; let stop swim put run 开始坐下,别忘了购买得到。 begin sit forget shop get 规则动词过去式的构成 构成规则 原形 过去式 一般在动词原形末 尾加-ed 结尾是e的动词加 -d 末尾只有一个辅音 字母的重读闭音节词 先双写这个辅音字母 再加-ed 结尾是“辅音字母+y” 的动词,先变“y”为“i” 再加-ed look,play, start. looked,played, started. live,hope use. lived,hoped, used. stop,plan trip. stopped, planned, tripped. study,carry worry. studied,carried worride. 不规则动词的过去式、过去分词的构成 请写出下列单词的三单形式及现在分词形式 写出下列词的过去式、过去分词 hanged/hung hanged/hung closed closed fell fallen flied flied felt felt found found drove driven caught caught thought thought rose risen went gone gave given 时态共16种,现介绍8种常用的: 一般现在时,一般过去时,一般将来时, 现在进行时,过去进行时,过去将来时, 现在完成时,过去完成时,现在完成进行时。 一、一般现在时: 1、表示经常性,习惯性的动作;表现现在的时态 具备的能力、特征和真理。 句中常用often,usually,every day, now等时间 状语。 He goes to work every day. I’m very young now. He speaks English very well. She has two big eyes. The earth moves around the sun. Two times five is ten./Water boils at 100℃. 2、在时间状语从句和条件状语从句中,用一般现 在时表示将来。 If you come back this afternoon,we’ll see film together./If it rains tomorrow,I couldn’t go When I graduate from college,I’ll go to the USA hikirg. 3、表示计划、规定要发生的动作。一般现在表将 来。begin, start,came, go, have,arrive,return, stop,open, close,take off,see sb.off等. What time does the train leave for Beijing? The plane takes off at 8:30a.m. 4、表示状态和感觉的动词。Be,like,hate,think, remember,forget,find,sound等。 I like English very much. The story sounds very interesting. 5、书报的标题、小说情节介绍。 二、一般过去时的用法 1、表示过去某时间发生的事、存在状态或过去 反复发生的动作。(常接 ago/yesterday/last/in the past/one day等) He arrived in Hangzhou yesterday. He worked in a factory in 1998. 2、表示过去经常发生的动作,也可用“used to ” 和“would+动词原形”。 I used to smoke. During the vacation I would swim in the sea. 注意:Used to 表示过去常发生而现在再发生的动作或存 在的状态.另外“be used to+名词(动名词)”表示“习惯于……” I am used to the climate here. He is used to swimming in winter. 三、一般将来时的用法 一般将来时表示将来的动作或状态(常接tomorrow/ next/some day等)其表达形式除了“will或shall+ 动词原形”处,还有以下几种形式 1、“be going to +动词原形”,表示即将发生的或 最近打算进行的事。 I think it is going to rain. We are going to do some reading this evening. 3、“be to+动词原形”表示按计划要发生的事或征 求对方意见。 They are to meet at the gate of the school. The boy is to go to school tomorrow. 4、“be about to+动词原形”表示即将发生的动作。 不能与时间状语连用。 We are abuot to set out. 5、某些词begin, start,came, go, have,arrive, return,stop,open, close,take off,see sb.off come,go,leave,arrice,start等的一般现在时 和现在进行时也可表示将来。 The meeting startsat five o’ clock. He is leaving tomorrow. 四、现在进行时的用法 1、现在进行时表示现在正在进行的动作,由“be +现在分词”构成,另外“系动词+介词或副词” 也表示进行的意义(常接 listen/look/now等) We are having an English lesson now. The bridge is under constrtuction. 2、表示感觉、愿望和状态的某些动词。如:have be,hear,see,like等词一般不用进行时。 五、过去进行时的用法 1、过去进行时表示过去某一时刻、某一阶段正在 进行的动作,由“was(were)+现在分词”构成。 I was reading a novel when he came in. 六、现在完成时的用法 现在完成时由“have+过去分词”构成。其使用有两 种情况: 1、现在完成时所表示的动作在说话之前 已完成,而对现在有影响,句中没有具体的时间状语。 He has gone to Fuzhou./He has been to Fuzhou. 2、现在完成时所表示的动作开始于过去,持续到现在,也许还会持续下去。常用for和since表示一段时间的状语或so far,now,today,thisweek/year,already,yet,ever, just,before等. I have studied English for 5 years. He has studied English since2000. Now I have finished the work. 注意:表示短暂时间动作的词,如come,go,die, buy等的完成时不能与 for,since 等表示一段时间 的词连用。 3、现在完成时还可用在时间和条件状语从句中, 表示将来某时完成的动作。 I’ll go to your home when I have finished my Home-work. If it has stopped raining in the morning,we’ll go to the park. 七、过去完成时的用法 1、过去完成时由“had+过去分词”构成,过去完成 时的动词表示过去某一时刻或某一动作之前完成的 动作状态。句中常用by,before,until,when等词引 导的时间状语。 By the end of last year we had learnt 2,000 English words. The mail had come when I left. 2、过去完成时的动词还可表示过去某一时刻之前 发生的动作或状态持续到过去某个时间或持续下去。 I hadn’t heard of him for some time before I met him . 八、过去将来时的用法 过去将来时表示从过去的某时间看来将要发生的动 作或存在的状态。过去将来时由“should或would+ 动词原形”构成。第一人称用should,其他人称用 Would. They said they would come the next day. 九、现在完成进行时的用法 现在完成进行时由“have(has)+been+现在分词” 构成,表示现在以前一直在进行的动作。有些词, 如work,study,live,teach等用现在完成进行时与 现在完成意思差不多。 I have worked here for three years. I have been working here for three years. I have written a letter. I have been writing a letter. 1.Mr.Brown____to work by bus every day. A.is traveled B.has been travelling C.travels D.has traveled 2.It seldom_____in Kuming in winter. A.snow B.is snowing C.snowed D.snows 3.A mother who____ her son will do anything for his Happiness. A.is loving B.loves C.loved D.has loved 4.I ____ her the news that our country will explore the west. A.will tell B.told C.is telling D.tell 5.If it ____,the match will be postponed. A.is raining B.has been raining C.has rained D.rains 6.Although he ___ busy tomorrow,he will still go to the hospital to visit his wife. A.will be B.is going to be C.was D.is 7.Listen,the man ___ with his wife! A.quarreling B.is quarreling C.quarreled D.quarrels. 8.He ____ at home these days. A.is staying B.stays C.stayed D.has stayed 9.How____on with your new job these days? A.have you been getting B.are you getting C.Did you get D.have you got 10.I ____you a gift next week. A.shall be giving B.shall have given Cshall give D.would give 11.They ___ the computer design problem this after-noon. A.will have discussed B.are going to discuss C.shall discuss D.will be discussing 12.He was ___ when I walked into the room. Aready for leaving B.about to leave C.in the point of leaving D.most ready to leave 13.I____ much of the book but I don’t find it interesting. A.read B.am reading C.have read D.have been reading. 14.Let’s keep to the point or we ____any decisions. A.will never reach B.have never reached Cnever reach D.never reached 15.All morning as she waited for the medical report from the doctor,her nervousness_____. A.has grown B.is growing C.grew D.has grown 16.By the end of last year.another new gymnasium ____in Bei-jing. A.would be completed B.was being completed C.has been completed D.had been copleted 17.With the rapid growthe of population,the city ____in all directions in the past five years. A.sperads B.has sperad C.sperad D.had sperad 18.I____ ping-pong quite well,but I haven’t had time to play since the new year. A.will play B.have played C.played. D.play | ||||||||||||||||||||||||||||||
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