陈述句含义：用于陈述事实和观点的句子。

陈述句包括肯定结构和否定结构。

This is a desk.（肯定结构）He can sing and dance.（肯定结构）He doesn’t have a computer.（否定结构）There aren’t any pictures.（否定结构）肯定句变否定句：1.be动词的否定式be:am ,is ,are,was were构成否定式时，一律在后面加否定词notHe is reading. →He is not reading.They are from China. →They are not from China.2. 情态动词的否定式情态动词：can, could, must , may, might, will, would，shall,should , need,……构成否定式时，一律在情态动词后面加否定词notI can swim. →I can not swim.You should arrive here on time.→You should not arrive here on time.构成否定式时，要借助助动词do, does, did，在一般现在时中用do或者does，在一般过去时中用did。

结构为：主语+don’t\doesn’t\didn’t+动词原形+其它I like pop music. →I don’t like pop music.She often swims. →She doesn’t often swim.He handed in his homework.→He didn’t hand in his homework.1She is swimming. Is she swimming?2)谓语中含有助动词have/has/had (通常是在现在完成时和过去完成时中：have / has / had + 过去分词)规律：Tom has finished his homework. →Has Tom finished his homework?I have eaten breakfast. →Have you eaten breakfast?3)谓语动词中含有情态动词时。

规律：He can swim. →Can he swim?I should go to school. →Should I go to school?4)谓语动词是行为动词，必须在句首加上助动词。

加上这些助动词后，句子中谓语动词必须用原形。

规律：Tom built a science lab himself lab when he is 20 years old.→Did Tom build a science lab himself lab when he is 20 years old？She likes drinking milk. →Does she drink milk?They often swim. →Do they ofen swim.注意：1.把肯定句改成一般疑问句时，要注意句中是否有already,some,something,somebody等词，如果有，就要进行改变。

already,some,something,somebody等分别改成yet,any,anything,anyone She has already finished her work. →Has she finished her work yet? 2.注意人称的变化。

My mother is a teacher.Is your mother a teacher?3.以下问句固定的回答：Is this/that/a/an+物--------yes,it is./No,it isn’t.Are they /those/these…?---------Yes,they are./No,they aren’t.特殊疑问句含义：以疑问代词或疑问副词开头，提出疑问的句子。

基本结构：特殊疑问词+一般疑问句注意：A疑问词的选择：1.疑问代词who谁，whom谁，whose谁的，which哪些(个)，what什么2. 疑问副词（作状语）2when何时，where何地，why为什么，how如何，how much多少(不可数) ，how many多少(可数），how long多久，how old多大年纪，how far多远。

1)问“谁”用who或whomLeilei is a doctor. Who is a doctor?(对主语提示用who,对宾语提问用who,whom均可)2)问“谁的”用whoseThis is his book. Whose book is this?3)问“哪个”用which,whatI like this one among thesree three.Which do you like among these three?I like English best. What do you like best?4)问“时间”用when或what timeI go there in the morning ? When do you go thereIt is 4 o’clock. What time is it?(when既可以对时间点提问，也可对年、月、日等时间提问;what time通常只对时间点提问)5)问“地点”用whereThe ball is under the bed. Where is the ball?6)问“原因”用WhyHe did not come because he was ill.Why did not he come?7)问“方式”或“身体状况”用howHe did it in that way. How did he do it.3选择正确的单词填空1._____ is that pretty girl? She is my sister.2._____ are Jack and Tom? They are behind you.3._____ do you go to school? I go to school from Monday to Friday.4.______ are the apples? They are 10 yuan.6._____ is your mother? She is a teacher.7._____ are you going? We are going to the bakery(面包坊).8.______ did Jim and Wendy travel to Beijing ? They traveled there by plane9. ____________is the skirt? It’s red.10. _________ do you go to the cinema? Twice every week.11. did you be late for school? Because I got up late.一．将下列句子改成一般疑问句：1. It is a lovely dog.________________________________________2. I am a doctor. _____________________________________3. We are classmates. _____________________________________4. I play computer games every night._____________________________________5. He likes English. _____________________________________6. His father goes to work by bus._____________________________________7. I want a new toy. _____________________________________8. She finished reading the books two days ago.____________________________9. She has some story book. _____________________________________10. I can dance and sing. _____________________________________411 He has some brothers. _____________________________________12. They have gone to Beijing. _____________________________________13. She has finished her homework._____________________________________把肯定句变为否定句1. His father is an English teacher._____________________________________.2. These cats are crying.（喊叫）_____________________________________.3. They can swim. _____________________________________.4. They went to work on foot last year.___________________________________ .5. He likes English. _________________________________________6.They were students. .7.She was shy.I.对画线部分提问、1． They bought a new bike yesterday.____________________________________________________2． She is a nurse .____________________________________________________3． She is my teacher.____________________________________________________4． He bought the red one .____________________________________________________5． It is my coat .____________________________________________________6． I am looking for my sister .____________________________________________________7． I get up at six .____________________________________________________8． I am from Hubei .____________________________________________________9． I went to school late because I got up late.____________________________________________________10.They are five yuan .______________________________________________________5一、将下列句子变成一般疑问句1.Mr .Wang is 30 years old.2.The elephant’s ears are long.3.We like birds.4.I can sing and dance.5.Tom has finished his homework.二、对划线部分提问1.1）They are cleaning their classroom now.They cleaning now.2)he often has supper at home.He often supper?3)I got up at 6 o’clock this morning.you get up this morning .4）he finished the book last Sunday.He the book?5）I didn’t go to school because I had a bad cold.you go to school?6)You had better take the No.3 bus.Bus had I better take?7）He is feeling well.He feeling？68)He comes to China once a year.he come to China?9)They were drawing a horse when I came in.they when I came in? (10)Hundreds of people died in the war.people in the war. (11)She watches TV every night.she watch TV.(12)It is about 10 km away from here.It from here?(13)the shirt cost 200 yuan.the shirt cost?2.1)He is my father.2)They are under the tree.3)I often watch TV after dinner.4)Superman flies in the sky.5)Alan likes to play with Bill.6)Joe’s father plays badminton every week.7)The supermarket is near the school.8)Jennifer has a pair of earrings.9)I put the gold fish into the fish tank.10)The monkey sleeps at night.7。