八年级下册Section A教案设计

Unit 10备课说明

一、单元内容：I’ve had this bike for three years.

二、教学目标：

【知识目标】：1.学习一些新词汇。

2.继续学习现在完成时。

3.学写英语读书笔记。

【能力目标】：掌握如何表达现在完成时

【情感目标】：正确处理并充分利用自己的废旧物品。

三．教学重点：

学习现在完成时表示过去某一段时间已经开始一直持续到现在的动作或者状态。

运用have+pp.

学习在文章中运用现在完成时。

语法：现在完成时。

四、教学难点：现在完成时的运用尤其是for 和 since。

五、教具准备：PPT

六、课时安排：

   Section A 1 (1a -2d)....................................................................................1课时

   Section A 2 (3a-3c) .....................................................................................1课时

   Section A 3 (Grammar Focus-4c)............................................................... 1课时

  Section B 1 (1a-1d)......................................................................................1课时

   Section B 2 (2a-2e).................................................................................... 1课时

   Section B 3 (3a-self check).........................................................................1课时

                             共计6课时

Section A 3 (Grammar focus – 4c)

学习目标：

★ 知识目标

掌握现在完成时的用法

★ 能力目标

 正确区分现在完成时与一般过去时

 正确运用for 和since的用法[来源:Zxxk.Com]

★ 情感目标

正确处理并充分利用自己的废旧物品。

学习过程

 Step 1 Group work

   出示下面的典型例句，让学生们先自己观察句子结构，对比现在完成时和一般过去时的不同。

1. — How long have you had that bike over there? 

   — I’ve had it for three years. 

2. How long has his son owned the train and railway  set?   He’s owned it since his fourth birthday. 

3. Have you ever played football?  

  Yes, I did when I was little, but I haven’t played for a while now.

Step 2 精讲点拨

       现在完成时

   表示从过去已经开始持续到现在的动作或状态，可以和表示“从过去某一时刻延续到现在的一段时间状语”连用，如“for + 时间段”、“since + 过去时间点”、“since + 过去时的从句”、“since + 一段时间 + ago”。且for与since引导的时间状语可以相互转换。

e.g.  My uncle has worked at this factory for ten years.

= My uncle has worked at this factory since ten year ago.

I’ve lived here since 1990．

   自从1990年以来我就住在这里。  

I haven’t seen him for three years.

   我三年没有看见他了。 

She’s been at this school since five years ago.  

   自从五年前以来她就在这个学校。 [来源:Zxxk.Com]

    歌诀：含有for，since的现在完成时的用法歌诀:

 过去的动作或状态，一直持续到现在，for、since把时间带

   句中动词的特点

    此种用法中表示持续性的动作或状态的动词必须是延续性动词（否定句除外）

1.  这本书我买了5年了。

     I have bought the book for five years. (  )

     I’ve had the book for five years. (   )

2. 你哥哥参军多长时间了？

    How long has your brother joined the army? (  )

  How long has your brother been in the army/been a soldier? (    )   

Step 3 4a Rewrite the sentences using for or since

Keys: 2. They have been hungry for ten hours/since ten hours ago. 3.  I have had a camera since 2009. 4. I have known Ann for three years/since three years ago. 5.  Linda has been ill since Monday.

Step 4 4b Fill in the blanks with correct forms of the verbs in brackets.

Step 5 Group work

4c Fill in the questions and ask two students. Then complete the chart.[来源:学科网]

 Step 6  Blackboard Design[来源:学|科|网]

Unit 10 I’ve had this bike for three years.

Section A 3 (Grammar focus – 4c)

 非延续性动词和延续性动词之间的转换

1. 转换为相应的延续性动词，用于现在完成时。

  borrow — keep   buy — have   put on — wear

  catch a cold — have a cold    get to know — know

  get to sleep — sleep

2. 转化为“be + 形容词/副词/介词/名词”

 begin / start — be on    go out — be out     

 close — be closed  open — be open    [来源:学科网ZXXK]

  get to/arrive/reach — be (in)

 die — be dead         leave — be away  

  finish — be over  fall sleep — be asleep 

  join — be in/be a member of

 become — be          make friends — be friends

 come/go — be + 相应的介词短语