外研版（2024）八年级上册（2024）Understanding ideas教学课件ppt

这是一份外研版（2024）八年级上册（2024）Understanding ideas教学课件ppt，共40页。PPT课件主要包含了教学目标，Grammar，现在完成时1，Summary，Vocabulary，Homework等内容，欢迎下载使用。
通过教学活动的开展，培养学生对语法现象分析、推断和归纳的思维能力，能够在语法学习的过程中做到举一反三。
学生能够识别语篇中的现在完成时；总结和归纳现在完成时的用法；培养独立思考和自主探究的学习能力。
通过本节课的学习，学生能够认识到外貌多样性是人类的正常现象，学会接纳人与人之间的不同之处。
学生能够正确认读和拼写本节课的重点词汇和语法；能够就本课时的主题进行流畅的交流和探讨。
通过本课时的活动，学生能够发现、梳理、总结现在完成时的基本用法。
通过课堂活动，学生能够掌握现在完成时并完成相应的练习，灵活运用语法规则。
01Warming up
Understanding ideas
Read the sentences frm the reading passage and summarise the grammar rules.
(a) I haven't tld Maddie yet...(b) I have already learnt that I am what I am.
What can yu find?
haven't dne
Nw find ne mre sentence with these structures in the reading passage.
现在完成时表示在以前某个时间已经发生的行为或曾经做过的事情对目前有某种影响。现在完成时由“have/has+动词的过去分词"构成。I have entered lts f cmpetitins. 我参加过很多比赛。Have yu ever wn any prizes befre? 你以前得过奖吗?Many peple have agreed t help us. 许多人都同意帮助我们。
现在完成时表示在过去已经发生的行为或做过的事情对目前有某种影响。现在完成时还可以表示到目前为止已经完成的事情。I have seen the film. I d nt want t see it again.这部电影我已经看过了，不想再看了。My aunt has travelled all ver the wrld. 我姑姑已经周游了世界。
现在完成时中除第三人称单数形式用“has/has nt(hasn't)+动词的过去分词”以外，其他人称都用“have/have nt(haven't)+动词的过去分词”形式。大部分动词过去分词的变化方式是规则的，但是有一部分动词的变化是不规则的，同学们需要记住它们的不规则变化形式。例如:
be-was/were-beend-did-dneeat-ate-eateng-went-gnesee-saw-seen
现在完成时的不规则变化形式:
find-fund-fundhave-had-hadmake-made-madelet- let- letput-put-put
现在完成时常与just, already或yet等表示时间的状语连用。I have just heard the news. 我刚听到消息。Astrnauts have already been t the mn.宇航员已经去过月球了。We have just started t explre ther planets.我们才刚刚开始探索其他行星。
just用来表示“刚刚”, already用来表示“已经”, 两者都用于肯定句中，一般是置于have/has之后。在否定句中则可以用yet，表示“还未”, 有“以后可能会”的含义。The scientists have nt heard frm it yet.科学家还没有收到它发出的信息。
在使用现在完成时的时候，要注意它与一般过去时的区别。现在完成时在表达经历时只表示该事件是在现在之前的某一个时间里发生的，重点在于已完成动作对现在的影响。而一般过去时则表示在过去某一具体时间发生的事情。I have just been t Lndn. I went there last mnth.我刚去过伦敦，上个月去的。
在没有明确的过去时间状语时，如何判断该用现在完成时还是一般过去时呢？判断的标准是看该行为是否对现在有影响，也就是说该句所强调的是什么。现在完成时表示过去发生的动作或状态对现在有影响或结果。一般过去时表示在过去某个具体时间发生的动作或状态，与现在没有直接联系。
A: Where have yu put my bk? I can't find it. 你把我的书放哪儿去了?我找不到。B: I put it n yur desk yesterday.我昨天放在你桌上了。该对话中，当A问对方把自己的书放在何处时，A强调现在找不到了，因此用现在完成时。B回答时只是说明当时放的位置，所以用一般过去时。
A: Wuld yu like t g and see the film with me tnight? 你今晚想和我去看电影吗?B: Srry, I have seen it already.不好意思，我已经看过那部电影了。对话中的现在完成时表示对结果的强调：B回答时已经看过电影了，所以不想再看了。
Write sentences with the present perfect tense.
1 I / just / cut my lng hair2 She / never / wrry abut / her lks3 I / just / paint a beautiful flwer / n my face4 Chris / always / wear / a pair f glasses5 Jessica / already / change her pinin / n her lks
I have just cut my lng hair.
She has never wrried abut her lks.
I have just painted a beautiful flwer n my face.
Chris has alwaus wrn a pair f glasses.
Jessica has already changed her pinin her lks.
Rewrite the underlined sentences using the present perfect tense
I was the tallest student in my class, Nw, I'm still the tallest. I sat n the last rw in primary schl. Nw at junir high, I'm still sitting n the last rw. Peple always lk at me in surprise.
· I have always been the tallest student in my class.
· I have always sat n the last rw—first in primary schl and nw in junir high.
"Yu must be gd at basketball," my classmates at primary schl always said that. Nw at junir high, my classmates say the same. ... I culdn't accept my height, but I learn t d it nw. I'm prud f myself.
· "Yu must be gd at basketball," my classmates have always said.
· I culdn’t accept my height befre, but I have learned t accept it nw.
Wrk in pairs. Discuss the experience f accepting yur lks. Use the wrds frm the reading passage and the Useful expressins t help yu
· l was nt happy with my ...· ... is a gd way t ...· What d yu think f ... nw?· Fr example, ...· I have already ...· Why nt
EXPERIENCE OF ACCEPTING YOURSELF
Which part f yur lks are yu nt happy with?
Hw did yu feel abut it befre?
Hw d yu feel abut it nw?
Why did yu change yur view f it?
What can yu learn frm this experience?
03Vcabulary
搭配：underline a wrd/sentence 给单词/句子画线搭配：underline the imprtance f... 强调……的重要性Please underline the key pints in yur textbk.请在课本上给重点内容画线。He underlined the date in red t remember it.他用红色标出日期以便记忆。
搭配：sit in the frnt/back rw 坐在前排/后排搭配：stand in a rw 站成一排We sat in the frnt rw t see the perfrmance clearly.我们坐在前排，以便看清表演。The students std in a rw fr the pht.学生们站成一排拍照。
搭配：primary schl 小学搭配：primary educatin 初等教育She teaches at a primary schl in Lndn.她在伦敦的一所小学教书。Reading and writing are primary skills fr children.阅读和写作是孩子们的基础技能。
搭配：reach fr smething 伸手去拿某物搭配：reach a gal 达成目标She reached fr the bk n the tp shelf.她伸手去拿书架顶层的书。Can yu reach the light switch?你能够到电灯开关吗？
搭配：average height 平均身高搭配：measure ne’s height 测量某人的身高The dctr measured the child’s height every year.医生每年都测量这个孩子的身高。He is tall. His height is 180 cm.他很高。他的身高是180厘米。
04Exercises
1. 我们刚刚收到他的消息。We ____________________ his message.2. 她最近学了很多新单词。She ________________ many new wrds recently.3. 人类尚未在太空中发现任何生命。Man _____________________ any life in space yet.4. 我已经完成家庭作业了，一小时前完成的。I ____________________ my hmewrk. I finished it an hur ag.
have just received　　
has learned
has nt discvered
have already finished
5. 老师在我的作文里标出了错误。The teacher ______________ the mistakes in my essay.6. 我家附近有一排商店。There’s ______________ shps near my huse.7. 经过多年努力，他终于实现了梦想。After years f hard wrk, he finally ___________ his dream.8. 你可以调节椅子的高度。Yu can adjust the ____________ f the chair.
underline, rw, primary, reach, height
Review the key wrds, expressins, sentence patterns and grammar in tday’s lessn.Make five sentences with the grammar in tday’s lessn.