请举例说明什么是单词的语法概念术语.

请举例说明什么是单词的语法概念术语.
请举例说明什么是单词的语法概念术语.

请举例说明什么是单词的语法概念术语.
一、 一般现在时
1.概念：经常、反复发生的动作或行为及现在的某种状况. 2.时间状语： Always, usually, often, sometimes, every week (day, year, month…), once a week(day, year, month…), on Sundays, 3.基本结构：动词 原形 （如主语为第三人称单数,动词上要改为第三人称单数形式） 4.否定形式：主语+am/is/are +not+其他; 此时态的谓语动词若为行为动词,则在其前加don't, 如主语为第三人称单数,则用doesn't,同时还原行为动词. 5.一般疑问句：把be动词放于句首；用助动词do提问,如主语为第三人称单数,则用does,同时,还原行为动词. 6.例句：It seldom snows here.这里很少下雪. He is always ready to help others.他总是乐于帮助别人.
二、 一般过去时
1.概念：过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为. 2.时间状语：ago, yesterday, the day before yesterday, last week, last(year, night, month…), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc. 3.基本结构：主语+动词或be的过去时+名词 4.否定形式：主语+was/were +not+其他;在行为动词前加didn't,同时还原行为动词. 5.一般疑问句：was或were放于句首；用助动词do的过去式did 提问,同时还原行为动词. 6.例句：She often came to help us in those days.那些天她经常来帮助我们.
三、 一般将来时
1.概念：表示将要发生的动作或存在的状态及打算、计划或准备做某事. 2.时间状语：Tomorrow, next day(week, month, year…),soon, in a few minutes, by…,the day after tomorrow, etc. 3.基本结构：主语+am/is/are +going to + do+其它；主语+will/shall + do+其它 4.否定形式：主语+am/is/are not going to do ；主语+will/shall not do+其它 5.一般疑问句：be放于句首；will/shall提到句首. 6.例句： It is going to rain.天要下雨了.
四、 一般过去将来时
1.概念：立足于过去某一时刻,从过去看将来,常用于宾语从句中. 2.时间状语：The next day (morning, year…),the following month(week…),etc. 3.基本结构：主语+was/were +going to + do+其它；主语+would/should + do+其它 4.否定形式：主语+was/were+not + going to + do; 主语+would/should + not + do. 5.一般疑问句：was或were放于句首；would/should 提到句首. 6.例句：He said he would go to Beijing the next day.他说他第二天要去北京.
五、 现在进行时
1.概念：表示现阶段或说话时正在进行的动作及行为. 2.时间状语：Now, at this time, days, etc. look. listen 3.基本结构：主语+be +doing +其它 4.否定形式：主语+be +not +doing+其它 5.一般疑问句：把be动词放于句首. 6.例句：How are you feeling today?你今天感觉如何?
六、 过去进行时
1.概念：表示过去某段时间或某一时刻正在发生或进行的行为或动作. 2.时间状语：at this time yesterday, at that time或以when引导的谓语动词是一般过去时的时间状语等. 3.基本结构 主语+was/were +doing +其它 4.否定形式：主语+was/were + not +doing+其它 5.一般疑问句：把was或were放于句首.(第一个字母大写） 6.例句：At that time she was working in a PLA unit.那段时间她在人民解放军部队工作.
七、 将来进行时
1.概念：表示将来某一时间正在进行的动作,或表示要在将来某一时间开始,并继续下去的动作.常用来表示询问、请求等. 2.时间状语：Soon, tomorrow, this evening,on Sunday, by this time,in two days, tomorrow evening 3.基本结构：主语+shall/will + be +现在分词+其它 4.否定形式：主语+shall/will + not + be +现在分词+其它 5.例句：He won’t be coming to the party.他不去参加聚会了.
八、 过去完成时
1.概念：以过去某个时间为标准,在此以前发生的动作或行为,或在过去某动作之前完成的行为,即“过去的过去”. 2.时间状语：Before, by the end of last year (term, month…), etc. 3.基本结构：主语+had + p.p（过去分词）+其它 4.否定形式：主语+had + not +p.p（过去分词）+其它 5.一般疑问句：had放于句首. 6.例句：As soon as we got to the station, the train had left.当我们到车站的时候,火车已经开走了.
二、被动语态
英语中的被动语态使用得比汉语要多,要普遍,许多课本及考试乃至实际应用中都常常涉及到这个问题.一般说来,当强调动作承受者,不必说出执行者或含糊不清的执行者时,多用被动式.须注意的是,许多地方与汉语不同.注意那些汉语中没有"被……"的意思,英语却应该用被动态.还要注意,英语的被动态往往由"by"引出,而有用介词"by"的短语往往又不是被动态,而是系表结构.还有些特殊现象,如：known to man(人类.所知),on foot步行(美国人有时用by foot),in carraige(乘四轮马车)等等.还有假主动,真被动的十几个常用词的用法,以及so heavy to carry而不用so heavy to be carried 等习惯用法.有关这类情况,做到心中有数对全面掌握被动态,en211 准确解答习题非常关键,被动态必须涉及的是动词的各种时态变化的问题.英语的时态本来很复杂,怎样记住各自的被动形式呢? 首先要明确"将来进行无被动,现在完成进行同".这两种时态无被动形式. 另外,不及物动词带有同源宾语的动词,反身代词的动词和系动词都无被动形式.即便如此,还有不定式,动名词,分词,以及它们的复合结构)的被动态,再加上情态动词,助动词以及它们的疑问式和否定式从中掺杂,真是令人头痛,眼花缭乱.下面口诀就以动词do为例,即do did过去式done过去分词,以口诀形式总结各种时态的被动态,一定对你有所启示. 被动语态的句子通常是以Be-Passive(即"be+过去分词")的形式来表达,但也可以Get-Passive(即"get+过去分词")的形式来表达,例如：He got punished today.著名学者周海中教授在论文《Get-Passive研究》中指出：Get-Passive是一种新兴的被动语态形式；相对来说它的使用还没有Be-Passive那么广泛,一般限于口语和非正式书面语；但它却有着用得愈来愈多的趋势,是一种生气蓬勃的语言现象. 如果要特别强调动作或行为的执行者时,句子后面需接by～,译为“被（由）……”. 1 被动语态的句型 肯定句：主语+be +过去分词+（by～）. 否定句：主语+be not +过去分词+（by～）. 一般疑问句：Be +主语+过去分词+（by～）? 特殊疑问句：疑问词+be +主语+过去分词+（by～）? 被动语态的时态是由be的时态决定的,be是什么时态,全句就是什么时态,be动词后面的过去分词不变. 一、 被动语态的用法： 1. 一般现在时的被动语态构成：is / am / are + 及物动词的过去分词 Our classroom is cleaned everyday. I am asked to study hard. Knives are used for cutting things. 2. 一般过去时的被动语态构成：was / were + 及物动词的过去分词 A new shop was built last year. Dinosaur eggs were laid long long ago. 3. 一般将来时的被动语态构成：will+ be + 及物动词的过去分词 A new hospital will be built in our city. Many more trees will be planted next year. 4. 现在进行时的被动语态构成：am / is / are + being + 及物动词的过去分词 Uncle Wang is mending my bike now.→ My bike is being repaired by Tom now. They are planting trees over there. → Trees are being planted over there by them. 5. 现在完成时的被动语态构成：has / have + been + 及物动词的过去分词 This book has been translated into many languages. Many man-made satellites have been sent up into space by many countries. 6.过去进行时的被动语态构成：was/were + being + 及物动词的过去分词 The boy was being operated on when his parents hurried to the hospital. The new road was being made. 7.过去完成时的被动语态构成：had + been + 及物动词的过去分词 The classroom hadn’t been cleaned before the teacher came. The tickets had been sold out berore I came to the cinema. 8.将来完成时的被动语态构成：shall/will + have done They will have been married for 20 years by then. The project will have been completed before May. 9.含有情态动词的被动语态构成：情态动词+ be + 及物动词的过去分词 Young trees must be watered often. Your mistakes should be corrected right now. The door may be locked inside. Your homework can be handed in tomorrow. 二、 怎样把主动语态改成被动语态? 把主动语态改为被动语态非常简单,可以遵循以下几个步骤： 1. 先找出谓语动词； 2. 再找出谓语动词后的宾语； 3. 把宾语用作被动语态中的主语； 4. 注意人称、时态和数的变化. 例：1. Bruce writes a letter every week. →A letter is written by Bruce every week. 2. Li Lei mended the broken bike this morning.→The broken bike was mended by Li Lei this morning. 3. He has written two novels so far.→Two novels have been written by him so far. 4. They will plant ten trees tomorrow.→Ten trees will be planted by them tomorrow. 5. Lucy is writing a letter now.→A letter is being written by Lucy now. 6. You must lock the door when you leave.→the door must be locked when you leave. 三、 使用被动语态应注意的几个问题： 1. 不及物动词无被动语态. What will happen in 100 years. The dinosaurs disappeared about 65 million years ago. 2. 有些动词用主动形式表示被动意义. This pen writes well. This new book sells well. 3. 感官动词或使役动词使用省略to的动词不定式,主动语态中不带to ,但变为被动语态时,须加上to . 例：make somebody do something→somebody+ be +made to do something see somebody do something→somebody +be +seen to do something A girl saw my wallet drop when she passed by.→My wallet was seen to drop by a girl when she passed by. The boss made the little boy do heavy work.→The little boy was made to do heavy work by the boss. 4. 如果是接双宾语的动词改为被动语态时,直接宾语(物)作主语,那么动词后要用介词,这个介词是由与其搭配的动词决定. He gave me a book.→A book was given to me by him. He showed me a ticket.→A ticket was shown to me by him. My father bought me a new bike. →A new bike was bought for me by my father. 5. 一些动词短语用于被动语态时,动词短语应当看作一个整体,而不能丢掉其中的介词或副词. We can’t laugh at him. →He can’t be laugh at by us. He listens to the radio every day. →The radio is listened to by him every day. The nurse is taking care of the sick man. →The sick man is being taken care of by the nurse.