八年级英语下册Unit3OnlinetoursGrammar2教案新版

1、Online tours教课目标.To learn differences between Simple past tense and Present perfect tense.Complete Part A and Part B on page 41 and underline the different time expressions.To learn different time expressions between the Simple past tense and the Present perfect tense.教学重、难点 perfec.To learn differen

2、ces between Simple past tense and Present perfect tense. Complete Part A and Part B on page 41 and underline the different time expressions. T o learn different time expressions between the Simple past tense and the Present t tense.教学设计Step 1 Show :leaning aims.T:Today we ll learn8B Unit3 Online tou

3、rs(Grammar2).Please look at our learning aims .(Then I read it slowly)T: Are you clear ?S: Yes.T: Let s go on .Step 2 Show “ Guide One to the students. Guide One (8)Please write the words ,then recite them within 2 minutes.esterday, the other day, last, ago, just now. already, ever, just, recently,

4、yet, so far, upto now, till now, for, since, in the past/last ten years.Have a match! Who can do it best?T:please read and recite them by yourselves.If you have any questions,you can ask your deskmate orask me.Understand?S:Yes.T:I ll give you 2 minutes .Please go.T: OK ,Now,any questions?点拨：一般过去时的用法

5、观点：过去某个时间里发生的动作或状态；过去习惯性、常常性的动作、行为。基本组成：主语+动词(包含 be)的过去时常用的时间状语：yesterday, last week, an hour ago, the other day, in 1982等详细时间状语。【注】无论能否认句仍是一般疑问句，只需用了助动词，原句中的谓语动词的过去时都要复原成动词原形；主+系+表构造的句子，主语要和was和were在人称和数上保持一致。表示过去某一时辰或某段时间发生的动作或许存在的状态。常与表示过去的时间状语连用。比如：I lived here5 years ago.表示在过去一段时间内，常常性或习惯性的动作。比

6、如：When I was a child, I often played football inthe street.一般过去时的形式有时其实不表示过去的动作而是只表示说话人的委宛语气。比如：could you tell me your name?此刻达成时与一般过去时的用法比较此刻达成时的组成观点：过去发生或已经达成的动作对此刻造成的影响或结果，或从过去已经开始，连续到此刻的动作或状态。基本构造：主语 +have/has+过去分词否认形式：主语 +have/has+not+ 过去分词常用的时间状语：now,today, tonight, this week, this year, alrea

7、dy, yet, just, since, recently,in the past few years等等Who can recite ? (let s Ss recite for the others)He /She recites once.You recite twice,Are you clear?S:Yes.T:Please go.Then A,B分组读。T: Now I will give you 2 minutes to understand them.Have a match! Who can do it best?Time is up,Who can understand?

8、 Please check with your desknmates.(Then the teacher will check somestudents) Let s go on.Please look at“ Guide Two ” .Check:.Use the correct forms of the verbs in brackets.The old man(live) here since 1992.you(visit) our factory yet?. I(not see) you for a long time. You(change) a lot. I m afraid I(

9、keep) you waiting for such a long time. He(know) the city since he was very young.Are you sure you(lose) the book?Yes, I(look) for it everywhere, but I still can t find it.Show “ Guide Two ”Please look at Grammar B and finish it within five minutes.Have a match! Who can do it best?T:I ll give you 5 minutes,Please go .Let one student finish it on the blackboardT: Then check the answers.Step 3Class Exercise(-)True or False( 请改正)He has gone to the cinema since last night.He has seen many great films.My grandfather has died for two years.They have bee