人教版小学三年级英语寒假专题Be动词用法和祈使句

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1、年 级三年级学 科英语版 本人教新课标版课程标题寒假专题be动词用法和祈使句编稿老师一校林卉二校李秀卿审核崔小芳一、学习目标：1. Be动词：am, is, are 2. 祈使句 二、重点、难点：1. 正确使用be动词am, is, are。2. 明确祈使句的概念并掌握其常见的句型结构。三、考情分析：近年来，小学三年级英语试题对be动词和祈使句的考查主要集中以下两方面： 1. 正确使用be动词：am, is, are。 2. 熟练使用祈使句。四、知能提升：（一）知识讲解I. Be动词 1. 分类：英语中be动词的一般现在式有三个，分别是：am,is,are . 2. 用法：am和主语I（我）连

2、用。is用于he（他）, she（她）, it（它）和主语是单数的句子当中。are用于we（我们）, you（你们）, they（他们）和主语是复数的句子中。 例：I am a student.Hes a postman. She isnt my English teacher .Tom and I are the same age.Where is my dress? Here it is.Where are my shoes? Here they are.We are both tall.You are tall, too.小结：be动词用法结构图： （否）arentbe 动词用法歌诀：B

3、e 动词，兄弟仨，am, is, 还有are 。我（I）用am ，你（you）用are ，is用于他（he）， 她（she）， 它（it） 。单数名词用is， 复数名词都用are 。【考题链接】1. Hello! Here _an orange for you !A. am B. is C. are 答案：B思路分析：主语an orange是单数形式。2. My books _ very useful .A. am B. is C. are 答案：C 思路分析：主语My books是复数形式。 3. I have two pens. They _ new. One _ green and th

4、e other _ blue . A. am, is ,am B. is, are, is C. are, is, is 答案：C思路分析：主语they是复数形式。One 是单数形式，the other 意为“另一个”，也是单数形式。II. 祈使句 定义：祈使句表示请求、命令、建议等。谓语动词一律用原形。句子中通常不用主语，句末用惊叹号或句号，用降调来读。 分类：肯定的祈使句和否定的祈使句.1. 肯定的祈使句a. 句型：动词原形.（省略主语）Stand up.起立。Be quiet，please.请安静。比较 陈述句：You sit down.你坐下来。祈使句：Sit down.坐下。（省略主

5、语you）注意：有时，为了加强语气，可在动词之前加do。 Do sit down.务必请坐。Do study hard.一定要努力学习。b. 用客气的语气表示祈使句时，可在句首或句尾加上please，但如果在句尾加please，那在please之前一定要加一个逗号“，”。Come this way，please.请这边走。注意：祈使句中如果有呼唤语，一定要用逗号“，”隔开，呼唤语可出现在句首或句尾。Li Ming，come here.李明，过来。Come here，Li Ming.过来，李明。c. 含有第一、第三人称主语的祈使句Lets say good-bye here.我们在此道别吧。Do

6、nt let him do that again.别让他再那么做了。句型：Let+第一人称（me，us）. Let+第三人称代词（宾格：him，her，it，them）或名词.Lets go at once.咱们马上动身吧。Let me try again.让我再试试。Let Tom go there himself.让汤姆自己去那儿。注意：Lets包括听话者，Let us不包括听话者。用于反意疑问句时最明显。Lets go，shall we？咱们去吧，怎么样？Let us help you，will you？让我们帮帮你，好吗？2. 否定的祈使句句型a：Dont +动词原形Dont swim

7、 in the river.别在河里游泳。Dont be late.别迟到。Please dont be noisy.请不要大声喧哗。注意:表示禁止时，尤其是标语等也可用“No+名词动名词”的形式来表示。No smoking!禁止吸烟！No parking!禁止停车！No litter!不准乱扔杂物！句型b：Lets（us，me）+not +动词原形. Dont let +第三人称代词的宾格或名词+动词原形.Lets not say anything about it.对于这件事，咱们什么也不要说。Dont let them play with fire.别让他们玩火。【易错点】 1. be

8、动词的缩写形式： I am =Im he is =hes it is = its she is = shes you are=youre we are = were they are = theyre is not =isnt are not = arent * am not 没有缩写形式.Im不能用在句末。* 2. 祈使句的回答： 回答祈使句时，应该说“OK./ All right./ Great./Good idea.”(好的，好吧，好极了) 决不能用“Thats OK./ Thats all right .”(没关系) 如：Lets fly it .Great ! Show me you

9、r ruler .All right .【考题链接】 1. _ the duck yellow . A. colour B. Colour C. Colours答案：B思路分析：colour作动词时意为“给涂色”；作名词时意为“颜色”。祈使句需以动词原形开头且首字母要大写。2. _draw a monkey . A. Let B. Lets C. Lets答案：C思路分析：“Lets”是Let us 的缩写形式。意为“让我们”“Let us +动词原形”构成祈使句。3. Are you a student ? Yes, _.A. I are B. I am C. Im 答案：B思路分析：I 必

10、须与am 连用，但Im不能用在句末。4. Everyone _here today . A. am B. is C. are 答案：B思路分析：主语是复合不定代词时，谓语动词用单数。5. _this your chair ? Yes , it is. A. Am B. Are C. Is 答案：C思路分析：this 意为“这个”，是单数。主语是单数时，谓语动词须用单数。（二）即学即练. 用“am , is , are ”填空：1. This_ my mouth . 2. How _you ? 3. What_ your name ? 4. Mr Wang _ a good teacher .

11、5. My shoes _very beautiful . 6. _that your brother ? 7. Everything _ OK . 8. I _ tall and thin.II. 连词成句。（注意大小写及标点符号）1. are, how , you (?) _ _2. show , me , your, pencil-box( .) _3. at, my , train , look(. ) _ _ _4. Let, me, a , look, have (. ) _5. colour, pink , it , and, blue (. ) _下册Unit 1 Lets g

12、o to school . L1-L2一、预习新知下节课的主要内容，包括单词:classroom school storybook water bottle；句型:Lets go to school . Nice to see you again . Look! I have a new. Can I see it ? Sure .Here you are .二、预习点拨思考问题一：新学期开始了，见到同学们你知道该说些什么吗？思考问题二：同学们知道怎样用英语说“学校，教室，故事书和水瓶”吗？（答题时间：30分钟）. 用“am , is , are ”填空：Hello! My friends.

13、How_ you? Now, I will talk about my family and me. There _four people in my family. They _ my father, my mother, my little brother and I. My father _ a doctor. My mother _ a teacher. My brother _only 3 years old. He _lovely.(可爱的) .I _ 10 years old now. I_ in Class1, Grade 3.I love my family .II. 单项选

14、择：( ) 1. _ it pink and blue . A. Look B. Colour C. Is ( ) 2. _ draw an egg.A. Let B. Lets C. Lets( ) 3. _ some rice, please .A. have B. Have C. Drink ( ) 4.Here_ a pear for you .A. are B. am C. is( ) 5. Here you _ .A. am B. is C. are( ) 6. We _ all here today. A. am B. is C. are( ) 7. _make any nois

15、e .A. Dont B. Not C. Can( ) 8. I like my house. It_ big . A. am B. is C. are( ) 9. What _this, Li Yan? _elephant.A. is, A B. are, A C. is, An( ) 10. Is that _ eraser？ Yes, it_ .A. a, is B. an, is C. an, isnt . 用“am , is , are ”填空：Hello! My friends. How _are_ you? Now, I will talk about my family and

16、 me. There are four people in my family. They are my father, my mother, my little brother and I. My father is a doctor. My mother_ is a teacher. My brother is only 3 years old. He is lovely.(可爱的) .I am 10 years old now. I am in Class1, Grade 3.I love my family .II. 单项选择：( B ) 1. _ it pink and blue .

17、 A. Look B. Colour C. Is ( C ) 2. _ draw an egg.A. Let B. Lets C. Lets( B ) 3. _ some rice, please .A. have B. Have C. Drink ( C ) 4. Here_ a pear for you .A. are B. am C. is( C ) 5. Here you _ .A. am B. is C. are( C ) 6. We _ all here today. A. am B. is C. are( A ) 7. _make any noise .A. Dont B. Not C. Can( B ) 8. I like my house. It_ big . . A. am B. is C. are( C ) 9. What _this, Li Yan? _elephant.A. is, A B. are, A C. is, An( B ) 10. Is that _ eraser？ Yes, it_ .A. a, is B. an, is C. an, isnt