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基础知识1.字母：26个字母的大小写ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz2.语音：元音的发音五个元音字母：AEIOU12个单元音：前元音：i: /e/ 中元音：: 后元音：: : u : 双元音（8个）合口双元音（5个）aieiauui集中双元音（3个） iu3.词汇：词汇量，近反义词4.句子：大小写，标点符号语法知识一.名词：名词单复数，名词的格(一)名词单复数一般情况，直接加-s，如：book-books, bag-bags, cat-cats, bed-beds以s. x. sh. ch结尾，加-es，如：bus-buses, box-boxes, brush-brushes, watch-watches以“辅音字母+y”结尾，变y为i, 再加-es，如：family-families, strawberry-strawberries以“f或fe”结尾，变f或fe为v, 再加-es，如：knife-knives不规则名词复数：man-men, woman-women, policeman-policemen, policewoman-policewomen, mouse-micechild-children, foot-feet, tooth-teeth, fish-fish, people-people, Chinese-Chinese, Japanese-Japanese不可数名词的复数就是原型：paper, juice, water, milk, rice, tea(二)名词的格有生命的东西的名词所有格：a) 单数后加 s 如: Lucys ruler my fathers shirtb) 以s 结尾的复数名词后加 如: his friends bagsc) 不以s 结尾的复数后加 s childrens shoes并列名词中，如果把 s加在最后一个名词后，表示共有, 如:Tom and Mikes car 汤姆和迈克共有的小汽车要表示所有物不是共有的，应分别在并列名词后加sToms and Mikes cars 汤姆和麦克各自的小汽车2)表示无生命东西的名词通常用“ of +名词”来表示所有关系：如:a picture of the classroom a map of China二.冠词：不定冠词，定冠词种类：(1)不定冠词：a / an a unit / an uncle元音开头的可数名词前用an :an egg / an apple / an orange / an eraser / an answer / an ID card / an alarm clock / an actor / an actress / an e-mail / an address / an event / an example / an opera / an houran old man / an interesting book / an exciting sport / an action movie / an art lesson /(2)定冠词：the the egg the plane2. 用法:定冠词的用法：特指某(些)人或某(些)物：The ruler is on the desk.复述上文提到的人或物：He has a sweater. The sweater is new.谈话双方都知道的人或物：The boys arent at school.在序数词前：Johns birthday is February the second.用于固定词组中：in the morning / afternoon / evening不用冠词的情况：专有名词前：China is a big country.名词前有定语：this , that , my , your , some, any , no 等：This is my baseball.复数名词表示一类人和事：Monkeys cant swim. They are teachers.在节日，日期，月份，季节前：Today is Christmas Day. Its Sunday.一日三餐前：We have breakfast at 6:30.球类 棋类运动前：They often play football after class. He plays chess at home.* 但乐器前要用定冠词：I play the guitar very well.学科名称前：My favorite subject is music.在称呼或头衔的名词前：This is Mr Li.固定词组中：at noon at night by bus三、代词、形容词、副词代词：人称代词，物主代词人称代词物主代词主格宾格第一人称单数I(我)memy(我的)复数we(我们)usour(我们的)第二人称单数you(你)youyour(你的)复数you(你们)youyour(你们的)第三人称单数he(他)himhis(他的)she(她)herher(她的)it(它)itits(它的)复数they(他们/她们/它们)themtheir(他们的/她们的/它们的)形容词，副词：比较级，最高级(一)、形容词的比较级1、形容词比较级在句子中的运用：两个事物或人的比较用比较级，比较级后面一般带有单词than。比较级前面可以用more, a little来修饰表示程度。than后的人称代词用主格(口语中可用宾格)。2.形容词加er的规则：一般在词尾加er ;以字母e 结尾，加r ;以一个元音字母和一个辅音字母结尾，应双写末尾的辅音字母，再加er ;以“辅音字母+y”结尾，先把y变i，再加er 。3.不规则形容词比较级：good-better, beautiful-more beautiful(二)副词的比较级1.形容词与副词的区别(有be用形，有形用be;有动用副，有副用动)在句子中形容词一般处于名词之前或be动词之后副词在句子中最常见的是处于实义动词之后2.副词比较级的变化规则基本与形容词比较级相同(不规则变化：well-better, far-farther)四、数词：基数词、序数词(1)1-20one，two，three，four，five，six，seven，eight，nine，ten，eleven，twelve，thirteen，fourteen，fifteen， sixteen，seventeen，eighteen，nineteen，twenty(2)21-99 先说“几十”，再说“几”，中间加连字符。23twenty-three，34thirty-four，45fortyfive，56fifty-six，67sixty-seven，78seventy-eight，89eighty-nine，91ninety-one(3)101999先说“几百”，再加and，再加末两位数或末位数;586five hundred and eighty-six，803eight hundred and three(4)l，000以上，先从右往左数，每三位数加一个“，”，第一个“，”前为thousand.第二个“，”前为million，第三个“，”前为billion1，001one thousand and one18，423eighteen thousand，four hundred and twenty-three6，260，309six million two hundred and sixty thousand three hundred and nine750，000，000，000seven hundred and fifty billion序数词(1)一般在基数词后加theg.fourfourth，thirteenthirteenth(2)不规则变化onefirst，twosecond，threethird，fivefifth，eighteighth，nineninth，twelvetwelfth(3)以y结尾的十位整数，变y为ie再加thtwentytwentieth， fortyfortieth， ninetyninetieth(4)从二十一后的“几十几”直至“几百几十几”或“几千几百几十几”只将个位的基数词变为序数词。twenty-first，two hundred and forty-fifth基数词转为序数词的口诀：基变序，有规律，词尾加上-th.一，二，三，特殊记，词尾字母t,d,d.八去t,九去e, ve要用f替。ty将y变成i，th前面有个e.若是碰到几十几，前用基来后用序。五、介词：常用介词：in, on, at, behind等1.at表示时间概念的某一个点。(在某时刻、时间、阶段等)。at 1：00(dawn，midnight，noon)在一点钟(黎明、午夜、中午)2.on1)表示具体日期。注：(1)关于在周末的几种表示法：at(on)the weekend在周末-特指at(on)weekends在周末-泛指over the weekend在整个周末during the weekend在周末期间(2)在圣诞节，应说at Christmas?而不说on Christmas?2)在(刚)的时候。On reaching the city he called up his parents.一到城里他就给父母打了一个电话。3.in1)表示时段、时期，在多数情况下可以和during互换，前者强调对比，后者强调持续。in(during)1988(December，the 20th century)在一九八八年(十二月、二十世纪)六、动词：动词的四种时态：(1)一般现在时：一般现在时的构成1. be动词：主语+be(am, is, are)+其它。如：I am a boy. 我是一个男孩。2. 行为动词：主语+行为动词(+其它)。如：We study English. 我们学习英语。当主语为第三人称单数(he, she, it)时，要在动词后加-s或-es。如：Mary likes Chinese.玛丽喜欢汉语。动词+s的变化规则1.一般情况下，直接加-s，如：cook-cooks, milk-milks2.以s. x. sh. ch. o结尾，加-es，如：guess-guesses, wash-washes, watch-watches, go-goes3.以“辅音字母+y”结尾，变y为i, 再加-es，如：study-studies(2)一般过去时:动词过去式详解 动词的过去式的构成规则有：A、规则动词 一般直接在动词的后面加ed：如 worked , learned , cleaned , visited 以e结尾的动词直接加d：如 lived , danced , used 以辅音字母加y结尾的动词要改y为i再加ed(此类动词较少)如 study studied carry carried worry worried (注意play、stay不是辅音字母加y,所以不属于此类) 双写最后一个字母(此类动词较少)如 stoppedB、不规则动词(此类词并无规则，须熟记)小学阶段要记住以下动词的原形和过去式：sing sang , eat ate ,see saw , have had , do did , go went , take took , buy bought , get got , read read ,fly flew , am/is was ,are were , say said , leave left , swim swam , tell told , draw drew , come came , lose lost , find found , drink drank , hurt hurt , feel felt(3)一般将来时：基本结构：be going to + do;will+ do. be going to = willI am going to go swimming tomorrow(明天). = I will go swimming tomorrow.4)现在进行时: am,is,are+动词现在分词动词现在分词详解 动词的ing形式的构成规则： 一般的直接在后面加上ing , 如doing , going , working , singing , eating 以e 结尾的动词，要先去e再加ing ，如having , writing 双写最后一个字母的(此类动词极少)有：running , swimming , sitting , getting句法1.陈述句(1)肯定句：是指用肯定的语气来陈述的句子，如：Im a student. She is a doctor. He works in a hospital.There are four fans in our classroom. He will eat lunch at 12:00. I watched TV yesterday evening.(2)、否定句：含有否定词或表示否定意义词的句子，如：Im not a student. She is not (isnt) a doctor.He does not (doesnt) work in a hospital. There are not (arent) four fans in our classroom.He will not (wont) eat lunch at 12:00. I did not (didnt) watch TV yesterday evening. 2. 疑问句一般疑问句：是指询问事实的句子，此类句子必须用“yes”，或“no”来回答。特殊疑问句：以特殊疑问词(what , where , who , which , when , whose , why , how等)开头引导的句子。此类句子应该问什么就答什么，不能用“yes 、no”来回答。 3.There be句型There be 句型与have, has的区别1、There be 句型表示：在某地有某物(或人)2、在there be 句型中，主语是单数，be 动词用is ; 主语是复数，be 动词用are ; 如有几件物品，be 动词根据最*近be 动词的那个名词决定。3、there be 句型的否定句在be 动词后加not , 一般疑问句把be 动词调到句首。4、there be句型与have(has) 的区别：there be 表示在某地有某物(或人);have(has) 表示某人拥有某物。5、some 和any 在there be 句型中的运用：some 用于肯定句， any 用于否定句或疑问句。6、and 和or 在there be句型中的运用：and 用于肯定句， or 用于否定句或疑问句。7、针对数量提问的特殊疑问句的基本结构是：How many + 名词复数 + are there + 介词短语?How much + 不可数名词 + is there + 介词短语?8、针对主语提问的特殊疑问句的基本结构是：Whats + 介词短语?
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