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2014年八年级英语下册Unit1Pastandpresent导学案
一.学习目标 初步认识和了解现在完成时的构成和用法。 识记动词的过去分词形式。 能够在语境中正确运用现在完成时。 4. 运用现在完成时谈论发生在过去并与现在有联系的事情。 2014年八年级英语下册Unit 1 Past and present导学案 一.学习目标
初步认识和了解现在完成时的构成和用法。 识记动词的过去分词形式。
能够在语境中正确运用现在完成时。
4. 运用现在完成时谈论发生在过去并与现在有联系的事情。
二.预习指导: 预习任务:
1、我们已经学习了动词过去时的变化规则,你能说出有几种变化吗?
2、想一想我们已经学习了几种时态?能不能每一种时态各举一个例子。 预习检测:
写出下列动词的过去式和过去分词,同时也要熟记。 1、teach _______ ______ 2、bring _______ ______
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3、get _____ _____
4、know _______ ______ 5、grow_______ _____ 6、find_____ _____
7、hold _______ _____ 8、show_______ _____ 9、keep_____ ____
10、leave_______ ______ 11、lose_______ _____ 12、run_______ ____
13
、
swim_______
______14drive______
______ 15、begin_____ ____ 三.课内探究:
现在完成时的“完成用法”和“未完成用法”
现在完成时的结构: have / has + 动词的过去分词 其中 have / has 为助动词,它的否定和疑问句形式全部由 have / has 进行变化。
例如: 1. He has finished his homework.他已经做完了家庭作业。
否
定
句:____________________________________________________
一
般
疑
问
句:________________________________________________?
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2. His father has been to Beijing three times. 他父亲去过北京三次了。
否
定
句:____________________________________________________.
一
般
疑
问
句:________________________________________________?
对
划
线
部
分
提
问
_____________________________________________? 二)1.现在完成时的”完成用法”
A、定义:现在完成时的”完成用法”指的是动作发生在过去某一时刻并已结束,但该动作对现在产生了影响,与现在情况具有因果关系。
例如:He has turned off the light. 他已把灯关了。
B、特点:现在完成时”完成用法”的特点是动作不延续,因此,该时
态只能与表示不定的过去时间状语、频度时间状语、包括现在时刻在内的 时间状语连用。
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例如: Have you found your pen yet? 你已找到你的钢笔了吗?
用所给动词的适当形式填空
1. I_______ already ______ the film. I _______ it last week.
2. ----- _______ he _________ his work today ? ------Not yet .
3. -----_______you _________ to Hong Kong ? ----Yes, I _______________ there twice .
4.
-----_______
you
ever
________
chocolate? ----No, never.
5. My father _______ just __________ back from work. He is tired now.
6.---______ you ________ the film last night? ---No, I ___________ it for several times. 7. Shanghai ___________ a small town hundreds of years ago. Now
it ____________ a large city.
8. So far I ______________ quite a few friends here.
9. --- I ___________ the film “Chicken Run”.
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--- Where and when ________ you _______ it? --- Last week.
10. Mary _________ already __________ her supper. 11. I _____ to see the film. I ________ it with my parents.
We _________ it last Sunday.
12. ---______ Uncle Wang ______ the TV yet? ---Yes, he______.
---When _____ he _____ it? --- Yesterday. 13. ______ you _______ today’s newspaper yet? 14 They _____ already______ their homework. 四.达标检测 句型转换。
have been to Macau before.
I ______ _______ been to Macau before. hasn’t come to school because he’s ill ______ _______ he come to school? has learned English for 5 years.
______ ______ _______ _______ learned English ? bought a new bike just now. I ______ just ______ a new bike. began to learn English three years ago.
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We ______ ______English _______three years. 6. He has lived here since 1999
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