1、 Unit1: Grammar 参考学案 一 学 习 目 标 1. 初步认识和了解现在完成时的构成和用法。 2. 识记动词的过去分词形式。 3. 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 _ _ 3、get _ _ 4、know _ _ 5、grow_ _ 6、find_
2、 _ 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” 一） 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：_? 2. His father has
3、 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。 ( 动作结束于过去，但说明的是现在的情况：灯现在不亮了。) 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(如：already，yet，before，recently 等
4、)、频度时间状语( 如：never，ever，once等)、包括现在时刻在内的 时间状语(如：this morning month year.，today等)连用。 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（题目有点多但特别重要请认真做哦） 1. I_ already _ (see) the film. I _ (see) it last week. 2. - _ he _(finish) his work today ? -Not yet . 3. -_you _(be) to Hong Kong ? -Yes, I
5、_ (be) there twice . 4. -_ you ever _(eat ) chocolate? -No, never. 5. My father _ just _ (come) back from work. He is tired now. 6. Where Li Ming? He _ (go) to the teachers office. 7. Shanghai _ (be) a small town hundreds of years ago. Now it _ (become) a large city. 8. So far (到目前为止) I _(make) quit
6、e a few friends here. 9. - I _ (see) the film “Chicken Run”. - Where and when _ you _ (see) it? - Last week. 10. Mary _ already _ (have) her supper. 11. I _ (not want) to see the film. I _ (see) it with my parents. We _ (see) it last Sunday. 12. -_ Uncle Wang _ (mend) the TV yet? -Yes, he_. -When _
7、he _ it? - Yesterday. 13. _ you _ (read) todays newspaper yet? 14 They _ already_(do) their homework. 15. -_ you _ (see) the film last night? -No, I _ (see) it for several times. 四 达 标 检 测 句型转换(每空一词) 。 1.I have been to Macau before.(改为否定句) I _ _ been to Macau before. 2.He hasnt come to school becaus
8、e hes ill (就划线部分提问 ) _ _ he come to school? 3.He has learned English for 5 years.(就划线部分提问) _ _ _ _ learned English ? 4.I bought a new bike just now.(用just改写) I _ just _ a new bike. 5.We began to learn English three years ago.(改为同义句) We _ _English _three years. 6. He has lived here since 1999.(就划线部分提问) _ _ _ he_ here? 7. Mr. Li began to teach English in this school in 1999.（同义句） Mr. Li _ _ English in this school since 1999. 8.They have cleaned the room twice this week. (就划线部分提问) _ _ _ _ they _ the classroom this week? 五 收 获 与 反 思
