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1、六下第一单元语法：形容词比较级的变化规则1. 直接加erStronger smaller2.后三位：辅元辅，双写，再加erbigger fatter thinner hotter3.“辅音+y结尾”：词尾的y变成i，再加erheavier happier funnier4. 以不发音的e结尾的，直接加rnicer cuter5. 特殊 good/ well -better 句型：A is +比较级 than B.六下第二/三单元语法：一般过去时一、动词的规则变化 （不规则变化参照书69页）1直接加ed：work worked looklooked2以不发音e结尾的单词，直接加d：live li
2、ved hopehoped useused3以辅音字母+y结尾i的，变y为i加ed：study studied cry- cried worryworried 4 辅-元-辅结尾：双写最后的辅音字母+ed：stop stopped planplanned二、句法结构1、肯定形式主语+动词过去式+其他 She went shopping last night.2、否定形式was/were+not； 在动词前加didnt，同时动词变回原形例句： He wasnt at home. I didnt know you like coffee. 3、一般疑问句Did+主语+动词原型+其他？ Was/We
3、re+主语+其他 ?例句：Did I do homework? Was he a student ? 六下第四单元语法：前后对比1. 某地有某物的表达（现在时）There is a/an + 单数名词/ 不可数名词( water . milk . rice ) +其他There are +复数名词+其他否定结构：在is / are 后面加not There isnt / There arent.2. 某地有某物的表达（过去时）There was a/an .There were.3. 某地 没有 某物的表达（过去时）There was no+ 单数名词There were no + 复数名词4
4、. Before, .（过去时造句）. Now, .（现在时造句）以前怎样，现在怎样时态复习一般现在时一、一般现在时的功能1表示经常性或习惯性的动作，常与表示频度的时间状语连用。 如： always, usually, often, sometimes, seldom（很少） never（决不）every day, at 8:30, on Sunday, in the morning等。 如：I always get up at 6:00 in the morning.2表示现在时刻的 状态、能力、性格、个性。如：She loves English very much. My sister p
5、lays the piano very well.3 表示客观的事实。如：The sun rises in the east. 太阳从东方升起。4格言或警句。如：Pride goes before a fall.骄者必败。I amHe /She / It is happyWe / They / You are一般现在时的构成1. 有be动词：主语+be (am,is,are) +其它如： I am a boy.我是一个男孩。 2.有动词：主语+动词 (+其它)。如：We study English.我们学习英语。注意：1如果句子主语的人称是I, we, you, they或复数名词时，动词用动
6、词原形。 如：We often go home by bus.2如果句子的主语是第三人称单数，即：he, she, it 或单数名词时，动词 要用第三人称的单数 形式。如：He often goes home by bus. Mary likesChinese.注意 ： 动词的第三人称单数形式的构成规则如下：1一般情况下在动词的后面直接加“s”；如：workworks playplays rainrains seesees visitvisits 2以o, x,s,sh, ch结尾的动词，在后面加“es”；如dodoes fixfixes guessguesses washwashes tea
7、chteaches watchwatches3以辅音字母加y结尾 的动词，先把 “y” 改为 “i”, 再加“es”；如： flyflies studystudies carrycarries 4不规则变化。如： havehas 2、 一般现在时的否定句 存在动词时的否定句1 如果句子的主语是I, we, you, they或 复数名词 时，则在主语的后面加 dont。 否定句：主语 + dont + 动词原形 (+其它)如：I like bread. I dont like bread.We always go to school on foot.We dont always go to s
8、chool on foot.2 如果句子的主语是he, she, it或 单数名词时，则在主语的后面加doesnt 但是要把动词第三人称单数形式改为动词原形。 否定句：主语 +doesnt +动词原形 (+其它) He often goes to school by bike. He doesnt often go to school by bike.be动词的否定句有be动词的，变化在be动词上。否定句：主语+ be (am/ is/ are) + not +其它。I am not ( = Im not）He /She / It is not ( = isnt ) happyWe / The
9、y / You are not （=arent）3、 一般现在时的疑问句（一般疑问句） 有be动词时的疑问句Are you happy? Yes, I am. / No, Im not. Is he/she/it happy? Yes, he/she /it is. No, he/ she/ it isnt.Are you/ they happy? Yes, we / they are.（复数形式）结构： Be +主语+其它。存在动词时的疑问句1、如果句子的主语是 I, we, you, they 或 复数名词 时，用 do 来引导，其余句子的位置不变。 结构： Do + you/ they
10、/ I /we +动词原型 ？ 肯定回答：Yes, I /we/ they do. 否定回答： No, I/ we/ they dont.如：They go to school by bus every day. Do they go to school by bus every day? Yes, they do.（肯定句） No, they dont.（否定句）2. 如果句子的主语是 he, she, it 或单数名词 时（1）用does 放句首引导疑问句（2其余句子的位置不变，但是把动词第三人称单数形式改为动词原形。 结构： Does +主语+动词原形 + 其他？ 如：Does he /
11、she / it / his father watch TV on the weekend? 肯定句：Yes, he /she / it does. 否定句： No, he /she / it doesnt.特殊疑问句：疑问词 +一般疑问句（对划线部分提问常用）1. 有be动词的： is + he / she /it / his father /名词单数 + . ?are + you / they / their parents /名词复数 . ? are you / they 疑问词 + 什么 What do you often do on the weekend? - I often do
12、 homework on the weekend. 哪个 Which season do you like best?- - I like winter best.为什么? Why do you like winter best? - Because I can make a snowman. 哪里 Where is your book ? - Its on the desk何时 When is your birthday? Its on Dec. 25th. When do you go to school? - I go to school at 7 oclock= 7:00.2.没有be
13、动词的：用do，第三人称单数时，用does， 过去式 did does + he / she /it / his father /名词单数 + 动词原型 ? do + you / they / their parents /名词复数 + 动词原型 ?did + 人称 + 动词原型 ? are you / they 疑问词 +现在进行时1 现在进行时表示现在正在进行或发生的动作，也可表示当前一段时间内的活动或现阶段正在进行的动作。2现在进行时的基本结构为 主语+be（am /is /are）+动词ing。 be动词 随着主语选择使用is，am或者are。如：I am reading a book.He is taking a picture.They are cleaning the room.3现在进行时的否定句在be后加not如：I am not reading a book.He is not ( isnt ) taking a picture.They are not ( arent )
