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1、祈使句讲解与专项练习祈使句指的是表示命令、请求、建议或劝告的句子。其主语you常省略，谓语动词用原形，句末用感叹号或句号。1. 肯定的祈使句（1）动词原形+其他 Stand up, please. =Please stand up. 请起立。（2）Be + adj. Be careful! = Look out! = Take care! 小心 / 当心！（3）Lets + 动词原形 Lets go to school together. 咱们一起上学去吧。2. 否定的祈使句(1) Dont + 动词原形 Dont stand up. 别站起来。 Dont be careless. 别粗心。
2、Dont let them play with fire. 别让他们玩火。（2）Lets ( let sb ) + not + 动词原形 Lets not say anything about it. 对于这件事，咱们什么也别说。 Let them not play with fire. 别让他们玩火。3.祈使句的反意疑问句(1) 肯定祈使句的反意疑问句反问部分用will you 或wont you。 Please open the door, will/ wont you? 请把门打开，好吗？(2) 否定祈使句的反意疑问句反问部分只用will you。 Dont be late again,
3、 will you? 别再迟到了，行不行？(3) 以lets开头的祈使句反意疑问句反问部分用shall we。 Lets turn on the TV, shall we? 我们把电视打开，好吗？ 只有以lets开头的祈使句的反意疑问句的反问部分才用shall we，而let us 开头的祈使句的反意疑问句的反问部分应为will you或wont you.如：Let us stay here, will/ wont you? 请（你）让我们留在这好吗？语法练兵场单项选择1. The TV is too loud. Please_. A. turn it down B. to turn it d
4、own C. turn down it D. to turn down it2. _ late again, Bill! A. Dont to be B. Dont be C. Not be D. Be not3. _ cross the road until the traffic lights turn green. A. Not B. Wont C. Doesnt D. Dont4. Please help me carry it, _? A. will I B. will you C. shall I D. shall we5. Dont make so much noise, _?
5、A. will you B. wont you C. shall we D. do you6. Do you know the girl _under the tree? A. stand B. to stand C. standing D. stood7. Kate, _ your homework here tomorrow. A. bring B. brings C. to bring D. bringing8. _ me the truth, or Ill be angry. A. Telling B. To tell C. Told D. Tell9. Ive kept the do
6、g _Maomao for a long time. A. Name B. named C. naming D. to name10. Dont you know that _ is good for our health? A. swim B. swimming C. swam D. swims句型转换11. Will you please read it again more slowly? （改为祈使句） _ _ again more slowly, please.12. If you dont listen to me, Ill go. （改为同义句） _ _ me, or Ill g
7、o.13. Lets watch the sports games. （改为反意疑问句） Lets watch the sports games, _ _?14. The teachers often tell the students not to be careless. （改为祈使句） _ _careless, please.15. Please sit next to Nancy. （改为否定句） _ _ next to Nancy.16. Dont forget to turn off the lights, please. （改为反意疑问句）Dont forget to turn
8、off the lights, _ _?17. If you move, youll die. （改为同义句）_ _, or youll die.18. Come to my house tomorrow. （改为反意疑问句）Come to my house tomorrow, _ _?19. 这是一个坏了的被子。 （翻译句子）This is a _ _.20. 让我们去帮帮那个哭泣的女孩吧。 （翻译句子）Lets go and help the _ _, please. There be 句型与have, has的区别一、There be句型1表示：在某地有某物或某人。2在there be
9、句型中，主语是单数或不可数名词，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。There is a book on the desk. There is some water in the glass.There are three men under the tree . There is a bag,two books and three pens on the desk.3there 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。There is a duck in the river.否定句：T
10、here is not a duck in the river.一般疑问句：Is there a duck in the river?4some 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。1表示：某5and 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。 二、have，has人或某物“拥有”什么东西，强调“所属关系”，而且某人某物作为句子的主语。2have用在人称I，we，you，they和复数的人或物后面。has用在人称he, she, it和单数和人或物后面。I have a daughter.
11、 He has a lucky dog.三、There be句型与have，has有时也可以通用。如：The classroom has ten desks. = There are ten desks in the classroom. 教室里有十张桌子。注意：1“have 表示一日三餐的名词”，意为“用餐”。如：have breakfast吃早餐，have lunch吃午饭，have supper吃晚饭。2“have 表示食品、饮料等名词”，意为“吃；喝”。如：have (some) bread吃面包，have eggs (for breakfast) (早餐)吃鸡蛋，have (a cu
12、p of) tea 喝(一杯)茶。3“have 表示动作的名词”，没有固定的意思，常与表示动作的名词同义。如：have a rest 休息一下have a swim 游泳have a drink (of)喝一点()have a look (at )(朝)看一眼4“have 表示某种活动的名词”，意为“进行，举行”。如：have a class (学生) 上课have a birthday party 举行生日聚会相关练习题一、用恰当的be动词填空。1There a lot of sweets in the box.2There some milk in the glass.3There som
13、e people under the big tree.4There a picture and a map on the wall.5There a box of rubbers near the books.6There lots of flowers in our garden last year.7There a plate of chicken behind the fridge yesterday.8There four cups of coffee on the table.二、用 have或has填空。1I _ a nice picture.2He _ a good friend.3They _ some kites.4We _ some flowers.5She _ a duck.6Her mother _ a vase.7Our teacher _ an English book.8Our teachers _ a basketball.9Their parents _ some story books.10Nancy _ many skirts.11My friends _ a football.12What do you _ ?13W
