六下第一单元语法：
形容词比较级的变化规则
1. 直接加er
Strong er small er
2.后三位：辅元辅，双写，再加er
big ger fat ter thin ner hot ter
3.“辅音+y结尾”：词尾的y变成i，再加er
heav ier happ ier funn ier
4. 以不发音的e结尾的，直接加r
nicer cuter
5.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 look——looked
2．以不发音e结尾的单词，直接加d：live ——lived hope——hoped use——used 3．以辅音字母+y结尾i的，变y为i加ed：
study—— studied cry- cried worry——worried
4．辅-元-辅结尾：双写最后的辅音字母+ed：stop—— stopped plan——planned
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
①was/were+not；②在动词前加didn't，同时动词变回原形
例句：He wasn’t at home. I didn't know you like coffee.
3、一般疑问句
①Did+主语+动词原型+其他？②Was/Were+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 isn’t / There aren’t.....
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.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 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。
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 go es home by bus. Mary likes Chinese.
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：work→works play→plays rain→rains see→sees visit→visits 2．以o, x,s,sh, ch结尾的动词，在后面加“es”；
如do→does fix→fixes guess→guesses wash→washes teach→teaches watch→watches
3．以辅音字母加y结尾的动词，先把“y” 改为“i”, 再加“es”；
如：fly→fl ies study→stud ies carry→carr ies
4．不规则变化。
如：have→has
二、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don’t。
否定句：主语+ don't + 动词原形(+其它)
如：I like bread. →I don't like bread.
We always go to school on foot.→We don’t always go to school 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doesn’t 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+doesn’t +动词原形(+其它) He often goes to school by bike.
→He doesn’t often go to school by bike.
三、一般现在时的疑问句（一般疑问句）
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 / I /we +动词原型？
肯定回答：Yes, I /we/ they do.
否定回答：No, I/ we/ they don’t.
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 don’t.（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 /she / it / his father watch TV on the weekend?
肯定句：Yes, he /she / it does.
否定句：No, he /she / it doesn’t.
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：
附：动词加ing的变化规则
1．一般情况下，直接加ing，如：cook - cooking play - playing
2．以不发音的e结尾，去e加ing
如：make-making taste-tasting have-having
3．如果末尾是一个元音字母和一个辅音字母双写末尾的辅音字母,再加ing
如：run-running stop- stopping swim-swimming
shop- shopping
一般将来时
一、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。
句中一般有以下时间状语：tomorrow, next day(week, month, year…),soon, the day after tomorrow（后天）等。
二、基本结构：①be going to + do；
②will+ do.
三、否定句：
结构：在be动词（am, is, are）后加not 或情态动词will后加not 成won’t. 例如：I’m going to have a picnic this afternoon.
→I’m not going to have a picnic this afternoon. = I won’t (will not) have a picnic...
四、一般疑问句：
结构：be或will提到句首，some改为any, and改为or，第一二人称互换。
例如：We are going to go on an outing this weekend.
→Are you going to go on an outing this weekend ?
五、对划线部分提问。
一般情况，一般将来时的对划线部分有三种情况。
1.问人？Who？
例如：I’m going to New York soon.→Who’s going to New York soon？
2. 问干什么？What …D o？
例如My father is going to watch a race with me this afternoon.
→What is your father going to do with you this afternoon？
3.问什么时候？When？
例如：She’s going to go to bed at nine. →When is she going to bed?
六、同义句：be going to = will
I am going to go swimming tomorrow（明天）.
= I will go swimming tomorrow.。