教学课题
复习一般过去时     

教学课时
四


教学目标
1.会用所给动词的适当形式填空。
2.会将含有动词过去式的陈述句改写成一般疑问句和否定句。

教学重点、难点
1. 掌握将含有动词过去式的陈述句改成一般疑问句和否定句的方法。

教学准备及手段
课件

教学流程
动态修改部分

第一课时
教学内容：
一般过去时
教学目标：
1.掌握一般过去时的定义、构成方式。
2.掌握怎么样由动词原形转为动词过去式的方法。
3.会用所给动词的适当形式填空。
教学重、难点：
会利用今天学的知识完成用所给动词适当形式填空
教学准备：
CAI   
教学过程：
一、Free talk:
What did you do last week?
Did you watch TV yesterday?
二、一般过去时的定义
表示过去某一时刻或某一时间内所发生的动作或情况，通常一般过去时带有表示动作时间状语的词、词组或从句，如yesterday, the day before
yesterday, last的词组，ago，just now等，上下文清楚时可以不带时间状语。
三、一般过去时肯定形式的构成方式
主语+动词过去式
四、 动词过去式的构成：
动词原形       过去时
（1）直接+ed：cooked, pulled
（2）e结尾+d: tasted, danced
（3）辅音+y ied：studied
（4）双写末尾+ed: stopped, planned
（5）不规则动词过去式
am\is –was            are-were            buy bought
come – came          do /does– did         draw – drew
drink – drank          eat – ate             find – found
fly – flew             get – got             give – gave
go – went             have/has – had        know – knew
make – made          put – put             read – read
run – ran              say – said            see – saw
sing – sang            sit – sat              swim – swam
take – took            teach – taught         tell – told
write – wrote
五、动词过去式的读音
动词加ed的读音主要有三种：
（1）尾音是/p/、/k/、/ʃ/、/tʃ/----读/t/,
     如jumped, cooked, watched, washed
（2）尾音是/t/和/d/----读/id/
     如needed，tasted, collected
（3）其余都读/d/
六、课堂练习---总结动词适当形式填空的方法。
用动词的适当形式填空
1 Su Yang              (clean) her house with Su Hai two days ago .
2. Mike          ( taste ) a lot of oranges on the farm when he was ten
years old.
3. Yesterday evening, I (walk ) in the park with my cousin.
There          (be) lots of people in the park.
4. Ben            (ask) his mother many questions when he was five
years old.
七、家庭作业
用动词的适当形式填空
1. He _________ (live) in America two years ago.
2. The boy ________ (listen) to the teacher carefully last week.
3. We _______ (watch) a Japanese cartoon last Friday.
4. Nancy ________ (pick) up oranges on the farm last week.
5. I ________ (pull) up        (carrot) with Mike yesterday.
6. They ________ (play) chess in the classroom last PE lesson.
7. My mother _______ (cook) a nice food last Spring Festival（春节）.
8. The girls _______ (dance) at the party last Wednesday .
9. The students ________ (study) very hard last month(月).
10. My parents _____   (plan ) to have a good weekend last Thursday.
11. We             (visit ) our grandparents last Sunday.
    My grandparents              (be) very happy to see us .
12.The children         (water) the flowers and           (collect ) eggs
on the farm three days ago . They            (be) very exited.

教后感：






第二课时
教学内容：
将含有动词过去式的陈述句改成一般疑问句的方法
教学目标：
1.复习一般过去时的定义、构成方式和动词适当形式填空的方法。
2.会将含有动词过去式的陈述句改写成一般疑问句。
教学重、难点：
掌握将含有动词过去式的陈述句改成一般疑问句的方法。
教学准备：
CAI   
教学过程：
一、复习一般过去时
1. 复习一般过去时的定义
2. 复习一般过去时构成方式
3. 复习用动词适当形式填空的方法
二、把下列各句改成一般疑问句(CAI)
1.让学生自己先改一改
（1）I watched a film with my parents on Wednesday.
_____________________________________________________
（2）We watered trees and pulled up carrots.
______________________________________________________
（3）Liu Tao played a lot of games on Wednesday.  
_____________________________________________________
2.总结方法
（1）让学生自己先自己总结
（2）教师总结
  a.动词，确定时态（动词原形、第三人称单数、过去式）；
b.词前加上don’t /doesn’t /didn’t，动词变原形:
动词原形：don’t……+动词原形
第三人称单数：doesn’t……+动词原形
过去式：didn’t……+动词原形
c.中some改为any，and 改为or，其余照抄.
3.根据总结出来的方法再做那三题
三、课堂练习
1.学生做题
a.They played football in the playground yesterday.
  一般疑问句：_______________________________
肯、否定回答：______________  
b.Liu Tao skated with with his cousin last Winter Holiday.
一般疑问句：_______________________________
肯、否定回答：______________
划线部分提问：________________________________________________
c.My brother showed his stamps to his classmates last week.
一般疑问句：__________________________________
否定回答：_____________
2.同桌相互说做题过程
3.班级反馈
四、家庭作业
1.句型转换
a.Su Hai tasted apples on the farm last Tuesday .
  一般疑问句：_____________________________           
肯定回答：_________
b. We watched a Japanese cartoon last Friday.
一般疑问句：____________________________         
否定回答：____________
c. The students studied English last month(月).
一般疑问句：__________________________________
否定回答：_____________
2.思考将含有动词过去式的陈述句改写成否定句的方法。
教后感：








第三课时
教学内容：
将含有动词过去式的陈述句改成否定句的方法
教学目标：
1.复习一般过去时的定义、构成方式和动词适当形式填空的方法。
2.复习将含有动词过去式的陈述句改写成一般疑问句的方法。
3.会将含有动词过去式的陈述句改写成否定句。
教学重、难点：
掌握将含有动词过去式的陈述句改成否定句的方法。
教学准备：
CAI
教学过程：
一、复习一般过去时
1. 复习一般过去时的定义
2. 复习一般过去时构成方式
3. 复习用动词适当形式填空的方法
二、 复习将含有动词过去式的陈述句改成一般疑问句的方法。
1.学生练习--将下列陈述句改成一般疑问句
a. It was a funny cartoon. （改为一般疑问句并作肯定和否定回答）
___________________________________________  ____________________________________
b. I visited a farm with my family on Monday and Tuesday. （改为一般疑问句并作肯定和否定回答）__________________________________________  ____________________________________
2.学生说做题思路。
三、把下列各句改写成否定句。
1. 让学生自己先改一改
（1）I watched a film with my parents on Wednesday.
_____________________________________________________
（2）We watered trees and pulled up carrots.
______________________________________________________
（3）Liu Tao played a lot of games on Wednesday.  
_____________________________________________________
2.总结方法
（1）让学生自己先自己总结
（2）教师总结
a.找到动词，确定时态（动词原形、第三人称单数、过去式）；
b.在动词前加上don’t /doesn’t /didn’t，动词变原形:
动词原形：don’t……+动词原形
第三人称单数：doesn’t……+动词原形
过去式：didn’t……+动词原形
c.把其中some改为any，and 改为or，其余照抄.
3.根据总结出来的方法再做那三题
三、课堂练习
1.学生做题
a.They played football in the playground yesterday.
改为否定句________________________________________
b.Liu Tao skated with with his cousin last Winter Holiday.
改为否定句_______________________________________
c.My brother showed his stamps to his classmates last week.
改为否定句________________________________________
2.同桌相互说做题过程
3.班级反馈
四、家庭作业
1.句型转换
a.Su Hai tasted apples on the farm last Tuesday .
否定句：_____________________________           
b. We watched a Japanese cartoon last Friday.
否定句：____________________________         
c. The students studied English last month(月).
否定句：__________________________________
五、Homework
①把下列各句改成一般疑问句,并做肯定和否定回答。 ②把下列各句改成否定句
1.       I usually watch TV in the evening.
_______ ______ usually ­­­­­_______ TV in the evening?
Yes, _____ ______. No,_____ _____.
I ______ usually _______ TV in the evening.
2. He does homework on Saturday morning.
   ______ he _______ homework on Saturday morning?
Yes, _____ ______. No,_____ _____.
   He ________ _______ homework on Saturday morning.
3.       We pulled up carrots and picked apples on the farm.
______ ______ ______ up carrots and ­­­­­________ apples on the farm?
Yes, _____ ______. No,_____ _____.
We ______ ______ up carrots and ________ apples on the farm.
4.       Nancy does well in English.
______ Nancy ______ well in English?
Yes, _____ ______. No,_____ _____.
Nancy ______ ______ well in English.
5.       Her parents went for a walk in the park yesterday.
______  her parents _______ a walk in the park yesterday?
Yes, _____ ______. No,_____ _____.
Her  parents _______ ________ a walk in the park yesterday.

教后感:





第四课时
教学内容：
巩固一般过去时
教学目标：
1.巩固掌握一般过去时的知识
教学重难点：
掌握做题的方法
教学准备：CAI
教学过程：
一、检查昨天家庭作业
1.I usually watch TV in the evening.
_______ ______ usually ­­­­­_______ TV in the evening?
Yes, _____ ______. No,_____ _____.
I ______ usually _______ TV in the evening.
2. He does homework on Saturday morning.
   ______ he _______ homework on Saturday morning?
Yes, _____ ______. No,_____ _____.
   He ________ _______ homework on Saturday morning.
3.We pulled up carrots and picked apples on the farm.
______ ______ ______ up carrots and ­­­­­________ apples on the farm?
Yes, _____ ______. No,_____ _____.
We ______ ______ up carrots and ________ apples on the farm.
4.Nancy does well in English.
______ Nancy ______ well in English?
Yes, _____ ______. No,_____ _____.
Nancy ______ ______ well in English.
5.Her parents went for a walk in the park yesterday.
______  her parents _______ a walk in the park yesterday?
Yes, _____ ______. No,_____ _____.
Her  parents _______ ________ a walk in the park yesterday.
（！）批改后学生共同出现问题
（2）说一说每道题做题的思路
二、复习一般过去时
1. 复习一般过去时的定义
2. 复习一般过去时构成方式
3. 复习用动词适当形式填空的方法
三、复习将含有动词过去式的陈述句改成一般疑问句和否定句的方法。
四、课堂练习（CAI）
(1)练习
把下列各句改成一般疑问句,并做肯定和否定回答。把下列各句改成否定句
1. Helen did housework with her mother last Sunday.
______ Helen ______ housework with her mother last Sunday?
Yes, _____ ______. No,_____ _____.
Helen ______ ______ housework with her mother last Sunday.
2. I was in the playground a moment ago.
______ ______ in the playground a moment ago?  Yes, _____ ______. No,_____ _____.
I ______ in the playground a moment ago.
3. Lucy can do some exercise after school.
______ Lucy ______ ______ exercise after school?  Yes, _____ ______. No,_____ _____.
Lucy ______ ______ ______ exercise after school.
4. Jack has some brothers and sisters.
______ Jack ______ ______ brothers ______ sisters?  Yes, _____ ______. No,_____ _____.
Jack ______ ______ ______ brothers ______ sisters.
5. My father ate some food and drank some juice at the party.
______ ______ father ______ ______ food or_______ ______ juice at the party?
Yes, _____ ______. No,_____ _____.
My father ______ ______ ______ food or ______ ______ juice at the party.
（2）讲解
五、家庭作业
一、用动词的适当形式填空
1. I ______ (watch) a Chinese cartoon last Saturday.
2. Helen _______ (talk) the National Day with her father last night.
3. ______ you _______ (visit) your relatives(亲戚) last Spring Festival?
4. ______ he _______ (fly) a kite last Sunday? Yes, he ______.
二、句型转换:
①     把下列各句改成一般疑问句,并做肯定和否定回答。 ②把下列各句改成否定句
1.. I was in the classroom just now.
______ ______ in the classroom just now?  Yes, _____ ______. No,_____ _____.
______ ______ in the classroom just now.
2. David watched TV and did homework last night.
_____ David _____TV or _____ homework last night? Yes, _____ ______. No,_____ _____.
David ______ ______TV or ______ homework last night.
三、中译英
1. 上周是国庆节假期。
It_________he National Day _________ _________week.
2. 昨天我们参观了农场。在农场，我们品尝了许多橘子还拔萝卜了。我们很兴奋。
   Yesterday we _________the farm. _________the farm , we _________ many oranges and     _________ _________carrots. We_________very
_________.
3.上周五放学后你做什么了？我和朋友一起踢足球了。你还做什么了？我还做家作了。
_________ _________ _________ _________after school last Friday ?
I_________football_________my friends .
What _________ _________ you _________ ? I also _________ my
homework
教后反思：
















教学课题
复习一般过去时     

教学课时
四
主备教师
顾章琴

教学目标
1.会用所给动词的适当形式填空。
2.会将含有动词过去式的陈述句改写成一般疑问句和否定句。

教学重点、难点
1. 掌握将含有动词过去式的陈述句改成一般疑问句和否定句的方法。

教学准备及手段
课件

教学流程
动态修改部分

第一课时
教学内容：
一般过去时
教学目标：
1.掌握一般过去时的定义、构成方式。
2.掌握怎么样由动词原形转为动词过去式的方法。
3.会用所给动词的适当形式填空。
教学重、难点：
会利用今天学的知识完成用所给动词适当形式填空
教学准备：
CAI   
教学过程：
一、Free talk:
What did you do last week?
Did you watch TV yesterday?
二、一般过去时的定义
表示过去某一时刻或某一时间内所发生的动作或情况，通常一般过去时带有表示动作时间状语的词、词组或从句，如yesterday, the day before
yesterday, last的词组，ago，just now等，上下文清楚时可以不带时间状语。
三、一般过去时肯定形式的构成方式
主语+动词过去式
四、 动词过去式的构成：
动词原形       过去时
（1）直接+ed：cooked, pulled
（2）e结尾+d: tasted, danced
（3）辅音+y ied：studied
（4）双写末尾+ed: stopped, planned
（5）不规则动词过去式
am\is –was            are-were            buy bought
come – came          do /does– did         draw – drew
drink – drank          eat – ate             find – found
fly – flew             get – got             give – gave
go – went             have/has – had        know – knew
make – made          put – put             read – read
run – ran              say – said            see – saw
sing – sang            sit – sat              swim – swam
take – took            teach – taught         tell – told
write – wrote
五、动词过去式的读音
动词加ed的读音主要有三种：
（1）尾音是/p/、/k/、/ʃ/、/tʃ/----读/t/,
     如jumped, cooked, watched, washed
（2）尾音是/t/和/d/----读/id/
     如needed，tasted, collected
（3）其余都读/d/
六、课堂练习---总结动词适当形式填空的方法。
用动词的适当形式填空
1 Su Yang              (clean) her house with Su Hai two days ago .
2. Mike          ( taste ) a lot of oranges on the farm when he was ten
years old.
3. Yesterday evening, I (walk ) in the park with my cousin.
There          (be) lots of people in the park.
4. Ben            (ask) his mother many questions when he was five
years old.
七、家庭作业
用动词的适当形式填空
1. He _________ (live) in America two years ago.
2. The boy ________ (listen) to the teacher carefully last week.
3. We _______ (watch) a Japanese cartoon last Friday.
4. Nancy ________ (pick) up oranges on the farm last week.
5. I ________ (pull) up        (carrot) with Mike yesterday.
6. They ________ (play) chess in the classroom last PE lesson.
7. My mother _______ (cook) a nice food last Spring Festival（春节）.
8. The girls _______ (dance) at the party last Wednesday .
9. The students ________ (study) very hard last month(月).
10. My parents _____   (plan ) to have a good weekend last Thursday.
11. We             (visit ) our grandparents last Sunday.
    My grandparents              (be) very happy to see us .
12.The children         (water) the flowers and           (collect ) eggs
on the farm three days ago . They            (be) very exited.

教后感：






第二课时
教学内容：
将含有动词过去式的陈述句改成一般疑问句的方法
教学目标：
1.复习一般过去时的定义、构成方式和动词适当形式填空的方法。
2.会将含有动词过去式的陈述句改写成一般疑问句。
教学重、难点：
掌握将含有动词过去式的陈述句改成一般疑问句的方法。
教学准备：
CAI   
教学过程：
一、复习一般过去时
1. 复习一般过去时的定义
2. 复习一般过去时构成方式
3. 复习用动词适当形式填空的方法
二、把下列各句改成一般疑问句(CAI)
1.让学生自己先改一改
（1）I watched a film with my parents on Wednesday.
_____________________________________________________
（2）We watered trees and pulled up carrots.
______________________________________________________
（3）Liu Tao played a lot of games on Wednesday.  
_____________________________________________________
2.总结方法
（1）让学生自己先自己总结
（2）教师总结
  a.动词，确定时态（动词原形、第三人称单数、过去式）；
b.词前加上don’t /doesn’t /didn’t，动词变原形:
动词原形：don’t……+动词原形
第三人称单数：doesn’t……+动词原形
过去式：didn’t……+动词原形
c.中some改为any，and 改为or，其余照抄.
3.根据总结出来的方法再做那三题
三、课堂练习
1.学生做题
a.They played football in the playground yesterday.
  一般疑问句：_______________________________
肯、否定回答：______________  
b.Liu Tao skated with with his cousin last Winter Holiday.
一般疑问句：_______________________________
肯、否定回答：______________
划线部分提问：________________________________________________
c.My brother showed his stamps to his classmates last week.
一般疑问句：__________________________________
否定回答：_____________
2.同桌相互说做题过程
3.班级反馈
四、家庭作业
1.句型转换
a.Su Hai tasted apples on the farm last Tuesday .
  一般疑问句：_____________________________           
肯定回答：_________
b. We watched a Japanese cartoon last Friday.
一般疑问句：____________________________         
否定回答：____________
c. The students studied English last month(月).
一般疑问句：__________________________________
否定回答：_____________
2.思考将含有动词过去式的陈述句改写成否定句的方法。
教后感：








第三课时
教学内容：
将含有动词过去式的陈述句改成否定句的方法
教学目标：
1.复习一般过去时的定义、构成方式和动词适当形式填空的方法。
2.复习将含有动词过去式的陈述句改写成一般疑问句的方法。
3.会将含有动词过去式的陈述句改写成否定句。
教学重、难点：
掌握将含有动词过去式的陈述句改成否定句的方法。
教学准备：
CAI
教学过程：
一、复习一般过去时
1. 复习一般过去时的定义
2. 复习一般过去时构成方式
3. 复习用动词适当形式填空的方法
二、 复习将含有动词过去式的陈述句改成一般疑问句的方法。
1.学生练习--将下列陈述句改成一般疑问句
a. It was a funny cartoon. （改为一般疑问句并作肯定和否定回答）
___________________________________________  ____________________________________
b. I visited a farm with my family on Monday and Tuesday. （改为一般疑问句并作肯定和否定回答）__________________________________________  ____________________________________
2.学生说做题思路。
三、把下列各句改写成否定句。
1. 让学生自己先改一改
（1）I watched a film with my parents on Wednesday.
_____________________________________________________
（2）We watered trees and pulled up carrots.
______________________________________________________
（3）Liu Tao played a lot of games on Wednesday.  
_____________________________________________________
2.总结方法
（1）让学生自己先自己总结
（2）教师总结
a.找到动词，确定时态（动词原形、第三人称单数、过去式）；
b.在动词前加上don’t /doesn’t /didn’t，动词变原形:
动词原形：don’t……+动词原形
第三人称单数：doesn’t……+动词原形
过去式：didn’t……+动词原形
c.把其中some改为any，and 改为or，其余照抄.
3.根据总结出来的方法再做那三题
三、课堂练习
1.学生做题
a.They played football in the playground yesterday.
改为否定句________________________________________
b.Liu Tao skated with with his cousin last Winter Holiday.
改为否定句_______________________________________
c.My brother showed his stamps to his classmates last week.
改为否定句________________________________________
2.同桌相互说做题过程
3.班级反馈
四、家庭作业
1.句型转换
a.Su Hai tasted apples on the farm last Tuesday .
否定句：_____________________________           
b. We watched a Japanese cartoon last Friday.
否定句：____________________________         
c. The students studied English last month(月).
否定句：__________________________________
五、Homework
①把下列各句改成一般疑问句,并做肯定和否定回答。 ②把下列各句改成否定句
1.       I usually watch TV in the evening.
_______ ______ usually ­­­­­_______ TV in the evening?
Yes, _____ ______. No,_____ _____.
I ______ usually _______ TV in the evening.
2. He does homework on Saturday morning.
   ______ he _______ homework on Saturday morning?
Yes, _____ ______. No,_____ _____.
   He ________ _______ homework on Saturday morning.
3.       We pulled up carrots and picked apples on the farm.
______ ______ ______ up carrots and ­­­­­________ apples on the farm?
Yes, _____ ______. No,_____ _____.
We ______ ______ up carrots and ________ apples on the farm.
4.       Nancy does well in English.
______ Nancy ______ well in English?
Yes, _____ ______. No,_____ _____.
Nancy ______ ______ well in English.
5.       Her parents went for a walk in the park yesterday.
______  her parents _______ a walk in the park yesterday?
Yes, _____ ______. No,_____ _____.
Her  parents _______ ________ a walk in the park yesterday.

教后感:





第四课时
教学内容：
巩固一般过去时
教学目标：
1.巩固掌握一般过去时的知识
教学重难点：
掌握做题的方法
教学准备：CAI
教学过程：
一、检查昨天家庭作业
1.I usually watch TV in the evening.
_______ ______ usually ­­­­­_______ TV in the evening?
Yes, _____ ______. No,_____ _____.
I ______ usually _______ TV in the evening.
2. He does homework on Saturday morning.
   ______ he _______ homework on Saturday morning?
Yes, _____ ______. No,_____ _____.
   He ________ _______ homework on Saturday morning.
3.We pulled up carrots and picked apples on the farm.
______ ______ ______ up carrots and ­­­­­________ apples on the farm?
Yes, _____ ______. No,_____ _____.
We ______ ______ up carrots and ________ apples on the farm.
4.Nancy does well in English.
______ Nancy ______ well in English?
Yes, _____ ______. No,_____ _____.
Nancy ______ ______ well in English.
5.Her parents went for a walk in the park yesterday.
______  her parents _______ a walk in the park yesterday?
Yes, _____ ______. No,_____ _____.
Her  parents _______ ________ a walk in the park yesterday.
（！）批改后学生共同出现问题
（2）说一说每道题做题的思路
二、复习一般过去时
1. 复习一般过去时的定义
2. 复习一般过去时构成方式
3. 复习用动词适当形式填空的方法
三、复习将含有动词过去式的陈述句改成一般疑问句和否定句的方法。
四、课堂练习（CAI）
(1)练习
把下列各句改成一般疑问句,并做肯定和否定回答。把下列各句改成否定句
1. Helen did housework with her mother last Sunday.
______ Helen ______ housework with her mother last Sunday?
Yes, _____ ______. No,_____ _____.
Helen ______ ______ housework with her mother last Sunday.
2. I was in the playground a moment ago.
______ ______ in the playground a moment ago?  Yes, _____ ______. No,_____ _____.
I ______ in the playground a moment ago.
3. Lucy can do some exercise after school.
______ Lucy ______ ______ exercise after school?  Yes, _____ ______. No,_____ _____.
Lucy ______ ______ ______ exercise after school.
4. Jack has some brothers and sisters.
______ Jack ______ ______ brothers ______ sisters?  Yes, _____ ______. No,_____ _____.
Jack ______ ______ ______ brothers ______ sisters.
5. My father ate some food and drank some juice at the party.
______ ______ father ______ ______ food or_______ ______ juice at the party?
Yes, _____ ______. No,_____ _____.
My father ______ ______ ______ food or ______ ______ juice at the party.
（2）讲解
五、家庭作业
一、用动词的适当形式填空
1. I ______ (watch) a Chinese cartoon last Saturday.
2. Helen _______ (talk) the National Day with her father last night.
3. ______ you _______ (visit) your relatives(亲戚) last Spring Festival?
4. ______ he _______ (fly) a kite last Sunday? Yes, he ______.
二、句型转换:
①     把下列各句改成一般疑问句,并做肯定和否定回答。 ②把下列各句改成否定句
1.. I was in the classroom just now.
______ ______ in the classroom just now?  Yes, _____ ______. No,_____ _____.
______ ______ in the classroom just now.
2. David watched TV and did homework last night.
_____ David _____TV or _____ homework last night? Yes, _____ ______. No,_____ _____.
David ______ ______TV or ______ homework last night.
三、中译英
1. 上周是国庆节假期。
It_________he National Day _________ _________week.
2. 昨天我们参观了农场。在农场，我们品尝了许多橘子还拔萝卜了。我们很兴奋。
   Yesterday we _________the farm. _________the farm , we _________ many oranges and     _________ _________carrots. We_________very
_________.
3.上周五放学后你做什么了？我和朋友一起踢足球了。你还做什么了？我还做家作了。
_________ _________ _________ _________after school last Friday ?
I_________football_________my friends .
What _________ _________ you _________ ? I also _________ my
homework
教后反思：

感谢楼主无私分享，好好学习，天天向上。