英语人教版三年级上册对比复习英语四种时态

复习题：对比记忆英语句子的时态1、 教学目标:认知目标：通过四种时态对比来掌握小学阶段的四种句子时态。能力目标：让学生更恰当、更准确、更有意义地运用语言,从而顺利地进行 听、说、读、写等语言实践活动,更好地发展学生的语言情感目标：激发学生学习英语的兴趣,培养他们英语学习的积极态2、 教学重点、难点： 重点：掌握四种英语句子的时态的用法和结构。 难点：掌握四种英语句子的时态的用法和结构，及各种相应的时间词。三 教学过程：Step 1: 师：我们小学阶段共学习了四种英语时态，大家能说出分别是哪些种时态 吗？生:一般现在时，现在进行时，一般过去时，一般将来时。师：很好，大家知道这四个时态基本用法吗？即它们一般用在什么情况下。生：一般现在时，用在表示经常或反复发生的动作，存在的状态。 现在进行时，表示动作发生的时间是现在，动作的状态是正在进行中。 一般过去时，表示过去某一段时间发生的动作或状态。 一般将来时，表示将来某一时刻的动作或状态，或将来某一时间内经常 性的动作或状态。师：Very good.大家记得很清楚。幻灯片出示各种句子时态的用法。师：大家知道各个时态句子结构有何不同吗？生：动词形式不同。师：现在我给出几个词，大家用这几个词来造四种时态的句子。1. I go to school 2. They read books3. Tom swim 让学生板演，组成四种时态的句子。 1 I go to school from Monday to Friday. I am going to school now. I went to school yesterday. I will go to school tomorrow.2 They read books every day, They are reading books now. They read books yesterday. They will read books this afternoon3 Tom often swims in summer. Tom is swimming in the pool now. Tom swam in the river last weekend. Tom will swim tomorrow. 学生写完后，称赞他们。Step 2: 引导学生看这几种句子的结构。 师:这些时态的句子变化在哪些部分呢？ 学生观察后回答：在动词方面和在时间词方面。 师：很好，说的很准确，各种句子的结构区别就在动词和时间词上。师：谁能说一下各个时态句子的动词形式是什么？或者说他们是怎么变化 的？学生回答，然后找个别学生作总结：一般现在时用动词原形，主语是第三人称单数， 动词后需加s 或es。现在进行时动词用be +动词ing 形式。（此处强调：一定是be +动词ing 形式，不能只说动词用ing 形式，这是 学生们经常出错的地方。）一般过去时动词用动词过去式。一般将来时动词用be going to +动词或will+动词的形式。 （幻灯片出示各种时态句子的动词形式）Step 3: 师：刚才大家还说了各种时态的句子时间词不同，谁能说一下这四种时态的 句子分别会用什么时间词呢？ 学生回答，若学生说的不完全教师补充，幻灯片出示：一般现在时会用： always,usually ,often ,smetimes ,every day, every night, every 现在进行时：Look! Listen! now, Be quiet!，一般过去时：yesterday, the day before yesterday, last week, last morning ,last 一般将来时：tomorrow , the day after tomorrow, next week, next evening ,next 师：大家说的很好，英语句子时态和这些时间词关系很大，可以这样说如果 句子中有那种时间词，我们就能确定这个句子时那种时态，从而确定动 词的形式。这些知识在根据句意用所给单词的适当形式填空和选择题中 常常用到。课堂练习：完成学案上的题。课堂小结：让学生把每一种时态的用法，结构及时间词叙述一下。布置作业：说出各种时态句子的否定形式和一般疑问句形式。写出上面练习的句 子的否定形式和一般疑问句形式课后反思：附：导学案预习英语四种时态，并完成下列试题。一、 用动词的正确形式填空1. I _ (do) my homework every evening.2. We _ (fly) kites in the park on Sundays.3. My mother _ (clean) our room on Sundays.4. Tom _(play) the piano every Saturday. Now he_ (play).5. She _(like) swimming. She _ (swim) this weekend.6. Usually my mother _ (wash) the dishes after lunch. But my grandma_ (wash) today.7. Look at the man! He _ (read) a magazine.8. Look! The plane _ (fly) over the building.9. Listen! My aunt _ (sing) in the room.She is a singer. She _ (like) singing. She _(have) a music show. She is excited.10. Tom and Mike always _ (swim) in the river. They _ (swim) in the swimming pool this Sunday. Look! They _ (swim).知识点：1、四种时态的用法：一般现在时，用在表示经常或反复发生的动作， 存在的状态。 现在进行时，表示动作发生的时间是现在，动作的状态是正在进行 中。 一般过去时，表示过去某一段时间发生的动作或状态。 一般将来时，表示将来某一时刻的动作或状态，或将来某一时间内经 常的动作或状态。2、 一般现在时用 _，主语是第三人称单数， 动词后需加s 或es。 现在进行时动词用 _ 。 一般过去时动词用 _。 一般将来时动词用 _，或 _的形式。 3、 四种时态句子的时间词：一般现在时会用： _、 _、 _、 _、 _ _、 现在进行时会用 _ 、_、 _ 。 一般过去时会用： _、 _、 _ 、 _、 _ 一般将来时： _、 _、 _、 _课堂练习一、 用动词的正确形式填空1. What _ you usually _ (do) in the evening? I _ (play) computer games.2. What _ you _ (do) now? I _ (make) a paper plane.3. What _ he _ (do)?He _ (dance).4. What _ she _ (do) yesterday? She _ (visit) her grandparents.5. _ your mother _ (read) newspaper in the morning? Yes, She _ .6. _ you _ (like) fishing? No, I _ . I like _ (swim),but my brother _ (like).7. How _ your father _ (go) to work every day? He _ (go) by bike. But its cold today. He _ (take) the No.21 bus, and he _ (go) to work by taxi yesterday.8. _ the monkey _ (like) climbing trees? Yes, it _ .9. What _ your father _ (do) after lunch? He _ (read) a comic book. What _ he _(do) today? He _ (clean) the kitchen for my grandma. Look! He _ (clean).10. _ you _ (collect) stamps? Yes. I _ . _ your brother _ (collect), too? No, he _ .二、选择题1. _ he _ to the park at 6:30 in the morning? No,he _ .A. Does; goes; does B. Does; go; doesnt C. Does; go; does2. What colour _ you _ this bookcase? I _ it pink.A. are; going to paint; am going to paintB. do; paint; paintC. did; paint; painted3. Tim always _ a picture at home. He _ a car now. A. draws; is drawing B. draw; draw C. draws; draw4. She usually _ her friends. They often _ tea. A. see; drink B. sees; drinks C. sees; drink5. He usually _ the dishes at night, but tonight he _ clothes. A. wash; wash B.washes; is going to wash C. is washing; washes6. Mr. Green usually _ his newspaper in the evening, but he and his wife _ television yesterday evening.A.reads; watches B.reads; is going to watch C.reads; watched7. Where are the man and the woman? They _ near the tree. A. sit B. sat C. are sitting8. _ your penpal _ diving? No, he _ .He _ writing stories.A. Does; like; doe