Unit 1 This is me Understanding ideas (Grammar)（教学课件）（共41张PPT，内嵌视频）外研版（2024）八年级上册

(共39张PPT)
After completing the unit, you will be able to:
· use words and expressions in the unit to talk about yourself.
· use the present perfect tense to talk about experiences of accepting yourself.
· describe yourself and your values.
This is me
Unit 1
Understanding ideas
Grammar
思维品质
学习能力
文化意识
语言能力
教学目标
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。
01
02
教学重难点
01
Warming up
Understanding ideas
Read the sentences from the reading passage and summarise the grammar rules.
5
(a) I haven't told Maddie yet...
(b) I have already learnt that I am what I am.
What can you find
Read the sentences from the reading passage and summarise the grammar rules.
5
(a) I haven't told Maddie yet...
(b) I have already learnt that I am what I am.
haven't done
have done
Now find one more sentence with these structures in the reading passage.
Understanding ideas
02
Grammar
现在完成时（1）
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 lots of competitions. 我参加过很多比赛。
Have you ever won any prizes before 你以前得过奖吗
Many people have agreed to help us. 许多人都同意帮助我们。
现在完成时（1）
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 do not want to see it again.
这部电影我已经看过了，不想再看了。
My aunt has travelled all over the world. 我姑姑已经周游了世界。
现在完成时（1）
现在完成时中除第三人称单数形式用“has/has not(hasn't)+动词的过去分词”以外，其他人称都用“have/have not(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-been
do-did-done
eat-ate-eaten
go-went-gone
see-saw-seen
现在完成时（1）
现在完成时的不规则变化形式:
find-found-found
have-had-had
make-made-made
let- let- let
put-put-put
现在完成时（1）
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。
Astronauts have already been to the moon.
宇航员已经去过月球了。
We have just started to explore other planets.
我们才刚刚开始探索其他行星。
现在完成时（1）
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 not heard from it yet.
科学家还没有收到它发出的信息。
现在完成时（1）
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 to London. I went there last month.
我刚去过伦敦，上个月去的。
现在完成时（1）
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。
现在完成时（1）
A: Where have you put my book I can't find it.
你把我的书放哪儿去了 我找不到。
B: I put it on your 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。
现在完成时（1）
A: Would you like to go and see the film with me tonight
你今晚想和我去看电影吗
B: Sorry, 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.
6
1 I / just / cut my long hair
2 She / never / worry about / her looks
3 I / just / paint a beautiful flower / on my face
4 Chris / always / wear / a pair of glasses
5 Jessica / already / change her opinion / on her looks
I have just cut my long hair.
She has never worried about her looks.
I have just painted a beautiful flower on my face.
Chris has alwaus worn a pair of glasses.
Jessica has already changed her opinion her looks.
Rewrite the underlined sentences using the present perfect tense
7
I was the tallest student in my class, Now, I'm still the tallest. I sat on the last row in primary school. Now at junior high, I'm still sitting on the last row. People always look at me in surprise.
· I have always been the tallest student in my class.
· I have always sat on the last row—first in primary school and now in junior high.
Rewrite the underlined sentences using the present perfect tense
7
"You must be good at basketball," my classmates at primary school always said that. Now at junior high, my classmates say the same. ... I couldn't accept my height, but I learn to do it now. I'm proud of myself.
· "You must be good at basketball," my classmates have always said.
· I couldn’t accept my height before, but I have learned to accept it now.
Work in pairs. Discuss the experience of accepting your looks. Use the words from the reading passage and the Useful expressions to help you
8
· l was not happy with my ...
· ... is a good way to ...
· What do you think of ... now
· For example, ...
· I have already ...
· Why not ...
Work in pairs. Discuss the experience of accepting your looks. Use the words from the reading passage and the Useful expressions to help you
8
EXPERIENCE OF ACCEPTING YOURSELF
Which part of your looks are you not happy with
How did you feel about it before
How do you feel about it now
Work in pairs. Discuss the experience of accepting your looks. Use the words from the reading passage and the Useful expressions to help you
8
EXPERIENCE OF ACCEPTING YOURSELF
Why did you change your view of it
What can you learn from this experience
Understanding ideas
03
Vocabulary
搭配：underline a word/sentence 给单词/句子画线
搭配：underline the importance of... 强调……的重要性
Please underline the key points in your textbook.
请在课本上给重点内容画线。
He underlined the date in red to remember it.
他用红色标出日期以便记忆。
1
underline
搭配：sit in the front/back row 坐在前排/后排
搭配：stand in a row 站成一排
We sat in the front row to see the performance clearly.
我们坐在前排，以便看清表演。
The students stood in a row for the photo.
学生们站成一排拍照。
2
row
搭配：primary school 小学
搭配：primary education 初等教育
She teaches at a primary school in London.
她在伦敦的一所小学教书。
Reading and writing are primary skills for children.
阅读和写作是孩子们的基础技能。
3
primary
搭配：reach for something 伸手去拿某物
搭配：reach a goal 达成目标
She reached for the book on the top shelf.
她伸手去拿书架顶层的书。
Can you reach the light switch
你能够到电灯开关吗？
4
reach
搭配：average height 平均身高
搭配：measure one’s height 测量某人的身高
The doctor 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。
5
height
Understanding ideas
04
Exercises
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 words 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 homework. I finished it an hour ago.
have just received　　
has learned
has not discovered
have already finished
Exercise
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 ______________ shops near my house.
7. 经过多年努力，他终于实现了梦想。
After years of hard work, he finally ___________ his dream.
8. 你可以调节椅子的高度。
You can adjust the ____________ of the chair.
underlined
a row of　　
reached
height 　　　
Exercise
Understanding ideas
05
Summary
Vocabulary
underline, row, primary, reach, height
Grammar
现在完成时
Understanding ideas
06
Homework
Homework
Review the key words, expressions, sentence patterns and grammar in today’s lesson.
Make five sentences with the grammar in today’s lesson.
SEE YOU NEXT CLASS!