英语常用单词是这样的,我以前学了英语,但是现在都忘得差不多了,而且语法,比如最基础的助于,谓语,状语什么的都忘得一干二净

1、动词的分类：类 别 意 义 例 句实义动词 含有实在的意义,表示动作或状态,在句子中能独立作谓语。 She has some bananas。 她吃些香蕉。They eat a lot of potatoes。 他们常吃土豆。I’m reading an English book now。我现在正看一本英文书。连系动词 本身有一定的词义,但不能独立作谓语,必须和表语一起构成谓语。 His father is a teacher。他父亲是教师。Twins usually look the same。双胞胎通常看起来一样。The teacher became very angry。 老师变得很生气。助动词 本身没有词义,不能独立作谓语,只能和主要动词一起构成谓语动词,用来表示否定、疑问、时态、语态或其它语法形式,助动词自身有人称、单复数和时态的变化。 He doesn’t speak English。 他不说英语。We are playing basketball。 我们在打篮球。Do you have a brother? 你有兄弟吗?情态动词 本身有一定的意义,不能独立作谓语,只能和主要动词一起构成谓语动词,表示说话人的语气和情态。情态动词没有人称和单复数的变化,有些情态动词有过去式。 You can keep the books for two weeks。这些书你可以借两个星期。May I smoke here? 我可以在这儿抽烟吗?We must go now。 我们现在得走了。★重要注(1) 关于实义动词： ① 英语的实义动词又可分为及物动词和不及物动词两大类：后面必须跟宾语意义才完整的叫及物动词；本身意义完整,后面不需跟宾语的叫不及物动词。② 有些动词通常只作不及物动词。如：go,come,happen,lie,listen,rise,arrive,hall等。有些动词通常用作及物动词。如：say, raise, lay, find, buy等。③ 大多数动词可以兼作及物动词和不及物动词。如：study, sing等。④ 有些动词作及物动词与作不及物动词时的意义有所不同。如：know, wash等。⑤ 有些动词常和介词 、副词或其它词类一起构成固定词组,形成短语动词。如：listen,reply,wait,look。(2) 关于连系动词：① 连系动词用来连接主语和表语,连系动词后面常为形容词。② 常见的连系动词有：be、become、look、feel、sound、smell、taste、seem、turn、grow、get、 go、fall、sit、stand、lie 等。③ 有些连系动词来源于实义动词,意思也跟着变化：look(看→看起来)、feel(感觉、摸→感到)、 smell(闻、嗅→闻起来)、taste(尝→尝起来)、turn(翻转、转动→变得)、grow(生长→变得)、get(得到、到达→变得)、go(去→变得),所不同的是,作为实义动词时,后面不能跟形容词。[注释] become、get、go、be、grow、turn的用法区别：become表示“变成”,比较正式,通常不用将来时表示动作已经完成。get也表示动作已经完成,但是更加口语化,通常表示温度、时间、岁数等变化。go表示“变得”,常见于某些短语中,后面常有形容词bad、blind、hungry等。be表示“是、成为、当”,多用于将来时、祈使句或不定式中。grow表示“变得”,常指逐渐的变化,表示身高、岁数的增长。turn表示“变得”,指变为与原先不同的情况,通常指颜色等变化。如：I was caught in the rain and I became ill。(我淋雨感冒了)/ He has got rich。(他变富了)/ He will be a scientist in the future。(将来他将成为科学家)/ My little brother has grown much taller in the past year。(在过去的一年里我的弟弟长得高多了)/ The sandwich has gone bad。(那块三明治已经变坏)/ Her face turned red after her mother criticized(批评) her。(妈妈批评了他以后他的脸变红了)(3) 关于助动词：①常见的助动词有：用于进行时和被动语态的be (am, is, are ,was, were, been, being ) ;用于完成时的have(has,had,having) ;用于将来时的shall (should) ; will (would)和用于一般时的do(does,did) 。 ②助动词必须同主语的人称和数一致,也就是说因主语人称、数的不同而采用不同的形式,其中有些助动词也可作情态动词。如：shall, will, should, would。 (4) 关于情态动词：①常见的情态动词有：can (could) ,may (might), must ,shall (should), will (would), dare (dared) , need等,另外,have to、had better也当作情态动词使用。情态动词后面必须加动词的原形。 ②can表示体力、脑力方面的能力或客观的可能性。口语中, 在询问或说明一件事可不可以做时,常用“can”代替“may”。情态动词“can”的过去式是“could”,否定式是“cannot”通常缩写成“can’t”,“could”的否定式是“could not”,通常缩写成“couldn’t”。如：Can I help you?(要帮忙吗?)/ He can swim。(他会游泳)/ That can’t be Mr Li。(那不可能是李先生)③ may表示允许、请求或可能性,用may提问时,肯定回答一般用Certainly或Yes,you may。;否定回答一般用can’t或mustn’t。 如：May I ask you a question?—Certainly。(可以问你一个问题吗?当然可以)/ You may go now。(现在你可以走了)/ It may be in your pocket。(它可能在你的衣袋里)④ must表示“必须”、“一定”的意思。表示“必须”时否定形式是mustn’t；表示“一定”时,否定形式是“can’t” 如：We must be very careful when we cross the road。(我们过马路时一定要非常小心)/ It must be Jack。(那准是杰克)/ I haven’t seen Kate today。 She can’t be here。(我今天没有看到过凯特,她不可能在这里) [注意]用must(必须)进行提问时,肯定回答用must,否定回答用needn’t；用must(一定)进行提问时,肯定回答仍用must,但是否定回答用can’t。如：Must we clean the room before we leave? –Yes,you must。或No,you needn’t。(我们走之前必须要打扫房间吗?是的,必须打扫。/ 不,不需要。) / Must she be in the romm? –Yes,she must。或No,she can’t。(她一定在房间里吗?是的,一定。/ 不,不可能在。)⑤ “have to”表示“不得不”、“必须”。We’ll have to leave now for it is very late at night。 have to的疑问形式是：助动词+…+have to,否定形式是：助动词+not+have to或者用needn’t。如：Do you have to stay until 8 o’clock?(你得呆到8点钟吗?)/ You don’t have to do so。(=You needn’t do so。)(你不用这么做)⑥ shall在问句中,可表示征求对方意见,与第一人称连用；在陈述句的第二、三人称的主语后或表示“命令”、“警告”、“允许”等。如：Shall we go to the zoo this weekend?(我们这个周末去动物园好吗?)/ He shall bring his own book next time。(他下次必须带自己的书来)⑦ should可表示“劝告”、“建议”、“惊奇”等意思。We should speak to old people politely。(我们应该礼貌地对老人讲话)⑧ will表示“意愿”、“决心”等意思,一般与第二人称连用。如：Will you please close the door for me?(请你替我把门关上好吗?)/ I will teach you a lesson。(我要教训你一顿)⑨would表示过去的“意愿”、“决心”等。He would sit near the fire every time he returned home。(每次他回到家中总要坐在火炉边)would也可以表示现在的情况,表达说话人向对方提出的要求,语气比“will”婉转、客气。在日常会话中,“我想要…”通常用“I would like to”或“I should(I’d) like to”来表示。如：Would you like to have a rest at the moment?(你现在想要休息一下吗?) would还可以表示过去经常发生的事情。如：Every year parents would tell their children about the boy who would save his people。(每一年父母们总是向孩子们讲述这个将会拯救他的人民的男孩的事)⑩ need表示“需要”,用于疑问句或否定句。“need”作实义动词时,在肯定、否定、疑问句中都可以用。如：He needn’t do it in such a hurry。(他不需要如此匆忙地做这件事)/ He needs some help。(他需要一些帮助)/ He doesn’t need to bring his football socks then。(那么他就无须带上足球袜了)⑾ dare是“敢”的意思,用法几乎与“need”完全相同,即在疑问句和否定句中,可以作情态动词,后面用不带“to”的动词不定式。在肯定句中和实义动词一样,后面的动词不定式要带“to”。How dare you say I am a fool?(你竟敢说我是个傻瓜?)/ He didn’t dare to touch the red button。(他不敢触碰那个红色的按钮)⑿ ‘d better (do)(“最好是”)一般也当作情态动词使用,否定式是：’d better not (do)。 如：You’d better sit here and say nothing。(你最好坐在这儿不讲话)/ You’d better not speak because he is sleeping。(你最好不要讲话因为他正在睡觉) 2、动词词形变化一览表：(1)规则动词变化表：规 则变 化 原形动词结尾情况 现在时单三人称 现 在 分 词 过去式和过去分词 一般情况 +s +ing +ed s,x,ch,sh,o结尾 +es +ing +ed 辅音字母+y结尾 y→i,+es +ing y→i,+ed 重读闭音节一元一辅结尾 +s 双写辅音字母,+ing 双写辅音字母,+ed 不发音的e结尾 +s 去掉e,+ing +d ie结尾 +s ie→y,+ing +d不规则变化 have→has；be→is (无) (见不规则动词变化表)注意：①在加ing或ed时动词如果以“r”结尾,尾音节又重读的动词,“r”应双写。②s/es的读音规则：在清辅音后读[s]；在浊辅音后和元音后读[z]；在[ s ]、[ F]、[z]、[tF]、[dV]后读[iz]。③ed的读音规则：在清辅音后读[t]；在浊辅音后和元音后读[d]；在[t]、[d]后读[id]。(2)不规则动词变化表：( 原形 → 过去式 → 过去分词)be(am,is) was been lose lost lostbe(are) were been make made madebeat beat beaten may might become became become mean meant meantbegin began begun meet met metblow blew blown mistake mistook mistakenbreak broke broken must must bring brought brought pay paid paidbuild built built put put putbuy bought bought read read Readcan could ride rode riddencatch caught caught ring rang rungchoose chose chosen rise rose risencome came come run ran runcost cost cost say said saidcut cut cut see saw seendig dug dug sell sold solddo did done send sent sentdraw drew drawn set set setdrink drank drunk shall should drive drove driven shine shone shoneeat ate eaten show showed shownfall fell fallen shut shut shutfeel felt felt sing sang sungfind found found sink sank/sunk sunk/sunkenfly flew flown sit set setforget forgot forgot/forgotten sleep slept sleptfreeze froze frozen smell smelt smeltget got got speak spoke spokengive gave given spend spent spentgo went gone spill spilt spiltgrow grew grown spoil spoilt spoilthang hung/hanged hung/hanged stand stood stoodhave(has) had had sweep swept swepthear heard heard swim swam swumhide hid hidden take took takenhit hit hit teach taught taughthold held held tell told toldhurt hurt hurt think thought thoughtkeep kept kept throw threw thrownknow knew known understand understood understoodlay laid laid wake woke/waked woken/wakedlearn learnt/learned learnt/learned wear wore wornleave left left will would lend lent lent win won wonlet let let write wrote wittenlie lay lain 3、be(“是/存在”)动词的各种时态变化：一 般 现 在 时 一 般 将 来 时 现 在 完 成 时I am…。You are。…He/She/It is…。We/You/They are…。 (I等各人称) will be…。I am He/She/It is going to be… We/You/They are I have been…。You have been…。She/he/It has been…。We/You/They have been…。一 般 过 去 时 过 去 将 来 时 过 去 完 成 时I was…。You were。…He/She/It was…。We/You/They were…。 (I等各人称) would be…。I was He/She/It was going to be… We/You/They were I had been…。You had been…。She/he/It had been…。We/You/They had been…。注意：句型变化时,否定句在am /is /are /will /have /has /was /were /had /would 后面加not,而且not都可以缩写为n’t (am后面not不可以缩写)；疑问句将am /is /are /will /have /has /was /were /had /would 提前到句首。