七年级《牛津初中英语预备课程》教学案
Unit 4 My classroom

要点直击
1. a, an, the的用法
a, an是不定冠词，the是定冠词。他们都放在名词的前面，起着修饰名词的作用。a, an表示“一”，通常放在第一次出现的人或事物的单数名词前，泛泛而指，因此被称为“不定”冠词。如，This is a boy. The boy is my brother. It is an apple.而the是特指一些事物，使说话双方心中都知道的人或物，因此被称为“定”冠词。如，The teacher is from China.
2. there be句型的结构及用法
（1）there be的结构为 There be +名词+地点。表示某处有某物。具体表现为三种句子结构，即：There is +可数名词单数+地点. There is +不可数名词+地点. There are +可数名词复数+地点
例如：①There is an apple on the desk. 桌子上面有一个苹果。
②There is some water in the cup. 杯子里有些水。
③There are two cats behind the door. 门后有两只猫。
（２）there be的否定句是直接在be动词后面加not。如：There are two boys in the classroom.变为否定句是There aren’t two boys in the classroom.
（3）there be的一般疑问句是把be动词提前，句尾加问号。如：There is a new book on the teacher’s desk. 变为否定句是Is there a new book on the teacher’s desk?其肯定的回答是Yes, there is. 否定的回答是No, there isn’t.
2.介词on, in behind的用法
on表示“在……的上面”，in表示“在……里面”，behind表示“在……后面”。
4. 有关there be 句型中的一致原则。
例如：There is a pencil and two rubbers on the desk./There are two rubbers and a pencil on the desk.
这两句都表示铅笔盒里有两块橡皮和一支铅笔。当紧接着be动词的名词是单数a pencil时，be动词就用is的形式。当紧接着be动词的名词是复数two rubbers时，be动词就用are的形式。

课堂检测
一、用所给词的正确形式的填空。
1.______as a sister. This is ______ sister.　(he)
2.The ________ are very helpful. (policeman)
3.There ________ four new students in my class. (be)
4.What’s on the _______ desk? (teacher)
5.Please ________ the window. (open)
6.Pat and I are in ______ 8. (class)
7.________ late for school again. (not be)
8.She is a ______ girl. (China)
9.________ a picture on the wall? No, _________. (there be)
10.Do you have ______ balls? (some)
二、翻译下列词组。
1. 两个朋友__________________2. 站起来 _______________________
3. 打开书____________________4. 一扇窗户______________________
5. 我的文具盒________________6. 擦黑板________________________
7. 关门______________________8. 在讲台上_____________ ________
9. 八个女孩__________________10.一张他的全家福____________________
11. 去上学 12. 两个文具盒
13. 十五个学生 14. 在椅子后面__________________
15. 许多盒子_________________16. 两张大海报___________________
17．他们的新文具盒___________18.下次别迟到__________________
19．三十八块橡皮_____________20．一张我学校的照片_____________
三、句型转换。
1. You are late. (改为一般疑问句)
you _______?
2. There is a pen in my pencil-box. (改为复数句子)
There some in my pencil-box.
3. She is a teacher. (对划线部分提问)
?
4. Close the door. (改为否定句)
the door.
5. I have a pen and a rubber in my bag. (改为同义句)
There and in my bag.
四、单项选择。
( ) 1. Let’s ________ the blackboard.
A. be B. clean C. to clean D. cleans
( ) 2. The shop _______.
A. is open B. open C. close D. is closed
( ) 3. What in the pencil box? pens.
A. is; They’re B. are; It’s C. are; They’re D. is; It’s
( ) 4. my trousers(裤子)? on the bed.
　　A. Whose is; It’s B. Where’s; It’s C. Where’re; They’re D. Where’s; They’re
( ) 5. Lucy and Lily are in _______class.
A. you   B. I   C. me D. our
( ) 6. There are many trees the river .
A. under B. in C. behind D. near
( ) 7. Don’t come here.
A. to B. on C.\ D. for
( ) 8. Are those apples red ? Yes, .
A. those are B. they are C. it is D. they is
( ) 9. Look at the boxes      the classroom.
   　　 A. in          B. on          C. under     D. to
( ) 10. He is a boy.   _______ name is Li Ling.
A. His        B. Her       C. He        D. He’s
( ) 11. ______ is this man?  —In his office.
A. Who     B. Where       C. How      D. How old
( ) 12. There _______ some flowers and a big tree in the garden.
A. is B. are C. have D. has
( ) 13. Don't look _______ the blackboard.
A. to B. on C. at D. for
( ) 14. Don’t sit on the chair. There is ______ on it.
A. is some
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