英语重要知识点
陈述句变成一般疑问句：如果句中有必动词be-v（is am are）要将is、am、are提前（如果有助动词要将助动词“抛弃”，将必动词最提前，不管是助动词还是特殊疑问词，必动词在一般疑问句里就是“老大”[1]；当变一个句子时，如果句子里有be-v动词的话，往往不能在变一般疑问句时加do或does；如果助动词已经使用了第三人称单数形式，那么句子中的动词不得再次使用第三人称单数形式，要变为动词原形[2]）.
[1]例：Tom is a student.
Does is Tom a student.(×)
Is Tom a student?(√)
[2]例：Does he lives in Huang gang（黄冈，中国一城市）.(×)
Does he live in Huang gang.(√)
用助动词do或does提问（do用于第一人称和第二人称单、复数和第三人称复数；does用于第三人称单数的he、she、it等）;如果在第一人称的情况下，往往要将第一人称变为第二人称;在变一般疑问句时，要将动词变化为动词原形；如果陈述句里面有many/some，改一般疑问句或者特殊疑问句时，要将many/some改为any.
一般疑问句系动词be 1.It is a pen.
Is it a pen?
2.He is a teacher.
Is he a teacher?
一般疑问句系动词be 3.We are students.
Are you students?
4.They are doctors.
Are they doctors?
一般疑问句助动词
l（我）you（你）they（他们）用do 进行提问
第三人称单数用does进行提问
注：do为does的动词原形，当一个句子重复出现does,要将重复出现的does变为do.
一般疑问句助动词
I like dancing.
Do you like dancing?
You like read stories.
Do you like read stories?
这里stories为story的名词复数.
一般疑问句助动词
He lives in Sydney（悉尼，澳大利亚一城
市）
Does he live in Sydney?
She likes apples.
Does she like apples?
Amy likes singing.
Does Amy like singing?
动词第三人称形式
1.一般情况下，直接在动词后加s
例：like--likes live--lives
2.以字母s、x、ch、sh、或o结尾的动词后加es
例：guess--guesses teach--teaches 3.以辅音字母+y结尾的动词后面变y为i 加es
例：study--studies fly--flies
like+动词ing
He likes reading stories.
My mother likes listening to music. Amy likes singing and dancing.
关键词：often、every day、every week On weekend……看人称变化动词
My mother goes to work by car every day.
He does word puzzles（难题）every week.
She comes to school on foot.
1.He likes cooking(cook) Chinese food.
2.My pen pal watches(watch) TV at night.
3.Mike goes（go）to school on foot.
4.Mr Bill teaches(teach) English.
5.My parents often goes(go) hiking.
6.She studies(study) English every day.
7.Amy often reads(read) stories in the study.
8.John likes doing kungfu.
9.Mr Wang is thirsty.
10.We like birds.
/n./ 名词.
/v./ 动词
/adj./ 形容词
/adv./ 副词
/pron./ 代词
/prep/ 介词
否定句的讲解
一般现在时表示现在经常反复发生的动作、存在的状态或习惯性的动作。

构成形式：
1.句子里面的谓语动词是be-v动词（必动词is、am、are）；
2.句子里面的谓语动词是实义动词。

否定句的变法
第一种：be动词后面直接加not
第二种：不是第三人称单数的主语,用助动词don't
第三种：第三人称单数的主语,用助动词doesn't
第四种：过去式用助动词didn't
第五种：情态动词直接加not
下面来做几道一般疑问句练习题，并做肯否回答，然后变为否定句。

1.T om likes listening to music.
2.S he clean her room every day.
3.M iss Green is hungry.
4.H e likes watch TV.
5.O ur classroom is big.
6.W e go home after school.
7.A my’s mother likes dancing.
8.J ohn has a football.
9.T hese are potatoes.
10.Bill gets up at 6:30 every day.
作者：Gary 2020/6/20
未经允许，不得转载！
盗版必究！。