初中英语人教版（2024）九年级上册（2024）Grammar Focus备课ppt课件

这是一份初中英语人教版（2024）九年级上册（2024）Grammar Focus备课ppt课件，共17页。PPT课件主要包含了Lead in，Activity 1，used to 曾经，过去式归纳变化规则，规则变化占大多数，直接 + ed，直接 + d，use → used，表示过去存在的状态，状态已改变等内容，欢迎下载使用。
Learning aims
能掌握一般过去时的用法
能掌握现在完成时的用法
What tense are they?
Learn t use simple past tense
Lk and find ut the time wrds.
abut 20 years ag20年前
一般过去时的标志词（时间状语）
yesterday, last night/week/year, in 1990, an hur ag
when I was yung, befre, just nw
used t + 动词原形
一般过去时表示过去发生的动作或状态，通常有明确的过去时间状语，谓语动词用过去式。
变 y 为 i + ed
双写末尾字母 + ed
play → played
study → studied
stp → stpped
归纳一般过去时的核心用法
表示过去某个时间发生的动作
He became a friend 20 years ag.
动作已结束，与现在无关
She was a teacher befre.
表示过去经常或习惯性的动作
常与 used t 或 ften, always 等连用
We used t travel far t see a dctr.
Use present perfect tense
发现与观察（从例句中找规律）
对现在的影响（现在有医院了）
过去的动作导致现在的状态（回来了）
归纳现在完成时的核心用法
表示过去发生的动作对现在有影响
表示过去开始的动作或状态持续到现在
动作已完成，结果或影响现在仍存在
不强调具体时间，只问“有没有过”
从例句中找出常见信号词：
结构规律（发现公式）从例句中提取结构：
肯定句：have / has + 过去分词→ They have cme back.→ Our village has built a hspital.否定句：have / has + nt + 过去分词→ They haven’t seen each ther.疑问句：Have / Has + 主语 + 过去分词？→ Has he cme back?
对比发现：一般过去时 vs 现在完成时
A: __________ yu ___________ (be) t the new library yet?B: N, I __________ (nt knw) there was a new library. When did it __________ (pen)?A: It __________ (pen) last Friday.I __________ (g) there with my grandpa n Saturday night.B: __________ yu __________ (like) it?A: Of curse! It’s the mst high-tech library I ________ ever ________ (visit).B: Oh, what __________ yu __________ there? (see)A: There are sectins with bks abut science and Chinese culture, as well as a huge sectin with children’s bks. I als __________ (read) sme digital bks n the cmputer. My grandpa __________ (listen) t sme audi bks because he can’t see well.B: Cl! I __________ (bring) my little brther tmrrw.
Cmplete the cnversatin with the crrect frms f the verbs in brackets.
In the past, it ________ (be) difficult t travel in Guizhu. In many places, there used t ________ (be) n bridges t crss ver muntains and rivers, and mst rads were just dirt tracks. This ________ (make) it difficult fr lcals t bring prducts t the market r t develp industry.Nw great changes ________ (take) place. The gvernment ________ (build) thusands f kilmetres f highways, railways, and wide rads. It has als built many high bridges ver muntains and rivers. A jurney that used t ________ (take) a day nw takes nly a few_____________ (imprve). They are much richer and happier than they nce hurs. As a result, the lives f lcal peple________ (be).
Cmplete the passage with the crrect frms f the verbs in brackets. Why are lcal peple richer and happier than befre?
have imprved
Talk abut the changes in yur hmetwn with simple past tense and present perfect tense.
Think deeply: What brings abut these changes in ur lives?