初中英语冀教版（2024）七年级下册（2024）Time on the earth图文ppt课件

这是一份初中英语冀教版（2024）七年级下册（2024）Time on the earth图文ppt课件，共19页。PPT课件主要包含了目 录，CONTENTS，教学目标，Lead-in，New Lesson，Practice，Summary，Homework等内容，欢迎下载使用。
1 教学目标 2 新课导入 3 新课讲解 4 当堂小练 5 课堂小结 6 家庭作业
What d yu knw abut the earth? Let’s learn mre abut the earth .
Our planet is abut 4.6 billin years ld. Accrding t the latest research, humans appeared nly 2.5 millin years ag. If we shrten this int ne day, humans appeared in the last tw minutes. Hw did that happen?Midnight n the earth started with a burst f vlcanes. Arund 3 t4 a.m., life appeared at the bttm f the ceans. At 6 p.m., water andsunlight began t prvide energy fr life. All kinds f plants started tgrw. At 9 p.m., the earth gave birth t different creatures. At 11:30 p.m., dinsaurs appeared. They were ne f the largest creatures in the histry f the earth. The last 20 minutes f the day was the "busiest" time: after the age f dinsaurs, it was the age f all kinds f animals, including humans.
Read the passage and write true(T) r false (F).
A The earth has a lng histry.( )B Dinsaurs arrived last n the earth.( )
Language Pints
1.Our planet is abut 4.6 billin years ld. 我们的星球大约有46亿年的历史。billin = 十亿（1,000,000,000）具体数字 + billin（不加 -s）例：3 billin peple（30 亿人），5 billin years（50 亿年）错误：✗ three billins, ✗ five billins yearsBillins f + 复数名词（表“数十亿的”，不具体指数量）例：Billins f stars（数十亿颗星星），billins f dllars（数十亿美元）错误：✗ billin f peple, ✗ tw billins bksThe prject cst ver 2 billin dllars.
2.If we shrten this int ne day, humans appeared in the last tw minutes. 如果我们把这个时间缩短到一天，人类出现在最后两分钟。
Last :1. 作形容词（Adj.）最后的（与 first 相对）the last page f the bk（书的最后一页）He is the last student t leave.（他是最后一个离开的学生。）最近的；刚过去的（时间）last night（昨晚），last week（上周），last year（去年）2. 作动词（V.）持续（表示时间长度）Last (fr) + 时间（fr 可省略）The mvie lasts (fr) tw hurs.（电影持续两小时。）The rain lasted all day.（雨下了一整天。）
3.作副词（Adv.）最后；最近一次修饰动作的顺序或时间：She spke last at the meeting.（她最后一个在会上发言。） 常见短语At last = finally（终于）例：At last, we finished the prject!（我们终于完成了项目！）Last name = family name（姓氏）例：My last name is Li.（我姓李。）
3.Arund 3 t 4 a.m., life appeared at the bttm f the ceans. 大约凌晨3点到4点，生命出现于海洋的底部。bttm底部；底端（与 tp 相对at the tp f...（在...的顶部/顶端）The bird is at the tp f the tree.（鸟在树顶。））the bttm f the bttle（瓶底）at the bttm f...（在...的底部/末端）The key is at the bttm f the bag.（钥匙在包的最下面。）介词误用：✗ in the bttm → ✓ at the bttm（在底部）
4.At 9 p.m., the earth gave birth t different creatures.晚上9点，地球孕育了不同的生物。Give birth t ：1. 基本含义生下（孩子/幼崽），主语通常是母亲（人或动物）。The cat gave birth t three kittens.（猫生下了三只小猫。）She gave birth t a healthy baby.（她生下了一个健康的宝宝。）产生；催生The meeting gave birth t a new idea.（这次会议催生了一个新想法。）结构：主语（母亲/雌性动物） + give birth t + 宾语（孩子/幼崽）
Read the passage again and cmplete the table.
Arund 3 t 4 a.m.
life appeared at the bttm f the ceans
water and sunlight began t prvide energy fr life
the earth gave birth t different creatures
At 11:30 p.m.
dinsaurs appeared
The last 20 minutes f the day
the age f all kinds f animals, including humans.
Wrk in pairs. Discuss the questins.A What's the relatinship between the earth and humans?___________________________________________________B What will happen t the wrld in the future?____________________________________________________C What will yu d t prtect the earth?____________________________________________________
The earth gave birth t humans.
Maybe there are mre different kinds f creatures in the future.
Prtect the envirnment.Dn’t hunt animals.
D yu knw Wrld Earth Day is n April 22 every year? It is an event thatencurages peple t save the earth. What kind f activities can yu d thelp save the earth? Talk in grups and share yur ideas with yur classmates.
billin = 十亿（1,000,000,000）具体数字 + billin（不加 -s）Billins f + 复数名词（表“数十亿的”，不具体指数量）Last :1. 作形容词（Adj.）最后的（与 first 相对）最近的；刚过去的（时间）2. 作动词（V.）持续（表示时间长度）Last (fr) + 时间3.作副词（Adv.）最后；最近一次 At last = finally（终于）bttm底部；底端（与 tp 相对at the tp f...（在...的顶部/顶端）at the bttm f...（在...的底部/末端）Give birth t ：生下（孩子/幼崽），主语通常是母亲（人或动物）。
基础性作业cmplete the activity bk f Lessn 6 .拓展性作业Write a passage abut Wrld Earth Day and What kinds f activities can we d t save the earth？实践性作业通过网络搜索关于地球的知识，包括目前地球的状态，如何能拯救地球。以拯救我们的地球为主题，绘制一张手抄报。