英语八年级下册Section A教学设计

这是一份英语八年级下册Section A教学设计，共3页。
★ 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fr 和since的用法
★ 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 Grup wrk
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. — Hw lng have yu had that bike ver there?
— I’ve had it fr three years.
2. Hw lng has his sn wned the train and railway set?
He’s wned it since his furth birthday.
3. Have yu ever played ftball?
Yes, I did when I was little, but I haven’t played fr a while nw.
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“fr + 时间段”、“since + 过去时间点”、“since + 过去时的从句”、“since + 一段时间 + ag”。且fr与since引导的时间状语可以相互转换。
e.g. My uncle has wrked at this factry fr ten years.
= My uncle has wrked at this factry since ten year ag.
I’ve lived here since 1990．
I haven’t seen him fr three years.
She’s been at this schl since five years ag.
歌诀：含有fr，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，fr、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 bught the bk fr five years. ( )
I’ve had the bk fr five years. ( )
2. 你哥哥参军多长时间了？
Hw lng has yur brther jined the army? ( )
Hw lng has yur brther been in the army/been a sldier? ( )
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。
brrw — keep buy — have put n — wear
catch a cld — have a cld get t knw — knw
get t sleep — sleep
2. 转化为“be + 形容词/副词/介词/名词”
begin / start — be n g ut — be ut clse — be clsed
pen — be pen get t/arrive/reach — be (in)
die — be dead leave — be away finish — be ver
fall sleep — be asleep jin — be in/be a member f
becme — be make friends — be friends
cme/g — be + 相应的介词短语
Step 3 4a Rewrite the sentences using fr r since
1. Jim is in Japan. He arrived there three years ag.
Jim has been in Japan fr three years.
2. They are very hungry. Their last meal was ten hurs ag.
They have been hungry fr ten hurs/since ten hurs ag.
3. I have a camera. I bught it in 2009.
I have had a camera since 2009.
4. I knw Ann. I first met her three years ag.
I have knwn Ann fr three years/since three years ag.
5. Linda is ill. She became ill n Mnday.
Linda has been ill since Mnday.
Step 4 4b Fill in the blanks with crrect frms f the verbs in brackets.
1. I __________ (never be) t the water park befre. I want t _____ (g) next mnth befre the weather gets t cld.
2. They _____________ (never wn) any pets, but they ___________ (always want) t have a dg.
3. We ________ (have) a pian since last Nvember. We ______ (buy) it frm the Li family when they mved t the US last year.
4. Cathy and Amy __________ (nt be) back t their hmetwn fr tw years. They _______ (miss) their hmetwn a lt and hpe t visit the place next year.
5. This museum __________ (be) here fr ver 20 years. It ______ (be) ne f the ldest buildings in this small twn.
Step 5 Grup wrk
4c Fill in the questins and ask tw students. Then cmplete the chart.
1. D yu have a(n) _______? Hw lng have yu had it?
2. D yu wn a(n)_______? Hw lng have yu wned it?

Things
Hw lng
Tny
favrite bk basketball
fr tw years
since he was 10years ld
Student 1


Student 2