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

这是一份初中英语冀教版（2024）七年级下册（2024）Time on the earth背景图课件ppt，共23页。PPT课件主要包含了Show time，self‐check，Fun time，单项选择，填空题等内容，欢迎下载使用。
Learning bjectives
In this lessn, we will be able t:
Understand the lng histry f the earth and the relative time f human appearance thrugh reading cmprehensin.Discuss and express views n the relatinship between the earth and humans, as well as what we can d t prtect the earth.Be aware f endangered animals and intrduce ways t prtect nature, understanding the cncept f harmny between nature and humans.
1 Read the passage and write true (T) r false (F).
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 t 4 a.m., life appeared at the bttm f the ceans. At 6 p.m., water and sunlight began t prvide energy fr life. All kinds f plants started t grw. 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.
A The earth has a lng histry. （ ）B Dinsaurs arrived last n the earth. （ ）
2 Read the passage again and cmplete the table.
arund 3 t 4 a.m.
life appeared
water and sunlight began t prvide energy; plants started t grw
The earth gave birth t different creatures
at 11:30 p.m.
dinsaurs appeared
last 20 minutes
It was the age f all kinds f animals, including humans
3 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?
4 D yu knw Wrld Earth Day is n April 22 every year? It is an event that encurages peple t save the earth. What kind f activities can yu d t help save the earth? Talk in grups and share yur ideas with yur classmates.
Save the earth, save ur hme.
I can talk abut the imprtance f plants:Plants clean the air.They give us fd like fruits and vegetables.I am aware that sme animals are endangered:Asian elephants are endangered.They becme endangered because f habitat lss, pllutin, and hunting.I can intrduce ways and take actin t prtect nature.I understand the idea f harmny between nature and humans.Imprvement needed:
Lving natureWith every sunrise and sunset’s glden hue,Nature whispers lve’s message, h s true.The meldy f birdsng, the dance f a stream,Lve’s harmny in nature, like a blissful dream.S let’s cherish the earth, ur sacred space.Embrace its wnders and prtect it with grace.Fr lve f nature is lve fr urselves t,A bnd that nurishes and sustains us thrugh.
用法“accrding t” 是一个介词短语，后面通常接名词、代词或名词性短语。例句：Accrding t the map, we shuld turn left at the next crner.（根据地图，我们应该在下一个拐角处向左转。）Accrding t the weather frecast, it will rain tmrrw.（根据天气预报，明天会下雨。）Accrding t the teacher, we need t study harder fr the exam.（按照老师的说法，我们需要为考试更努力地学习。）
1. Accrding t the latest research…
2. At 9 p.m., the earth gave birth t different creatures.
用法give birth t的主语通常是雌性动物、女性或可以产生新事物的主体。例句The cat gave birth t a litter f kittens.（这只猫生了一窝小猫。）She gave birth t a beautiful baby girl.（她生了一个漂亮的女孩儿。）The new plicy gave birth t many changes.（新政策带来了很多变化。）
3. Midnight n the earth started with a burst f vlcanes.
用法后面通常接表示情感、活动或现象的名词。例句A burst f laughter filled the rm.（一阵笑声充满了房间。）There was a burst f applause after the perfrmance.（表演结束后响起了一阵掌声。）She felt a burst f energy and started t run.（她感受到一股能量，然后开始跑了起来。）
“a burst f” 表示 “一阵……；一股……”
4. At 6 p.m., water and sunlight began t prvide energy fr life.
“energy” 是不可数名词，表示 “能量；精力；活力”。
用法常见的搭配有 “save energy（节约能源）”“renewable energy（可再生能源）”“full f energy（充满活力）”等。例句：We need t save energy.（我们需要节约能源。）Slar pwer is a kind f renewable energy.（太阳能是一种可再生能源。）The children are full f energy.（孩子们充满活力。）
用法可以用于具体的数字后面，表示几百万，如 “tw millin（两百万）”；也可以用 “millins f ” 表示 “数百万的”，后面接可数名词复数。例句There are abut tw millin peple in this city.（这个城市大约有两百万人。）Millins f peple watched the ftball game n TV.（数百万人在电视上观看了这场足球比赛。）The cmpany made a prfit f several millin dllars.（这家公司盈利了几百万美元。）
5. …humans appeared nly 2.5 millin years ag.
The earth is a ______.A. star B. planet C. mn D. satellite2.“Accrding t” means “______”.A. in additin t B. because f C. in spite f D. in accrdance with3.She gave birth ______ a lvely baby.A. f B. t C. n D. ff4.A burst f ______ filled the rm.A. laughter B. cry C. nise D. shut
There are billins f ________ (star) in the universe.Accrding t the teacher, we need t d ur hmewrk _________(careful). The cat _______ (give) birth t five kittens last can get __________(energy) frm the sun.
地球是一颗行星。根据天气预报，明天会下雨。她生了一个漂亮的宝宝。房间里传来了一阵笑声。我们需要节约能源。
The earth is a planet.
Accrding t the weather frecast, it will rain tmrrw.
She gave birth t a beautiful baby.
A burst f laughter came frm the rm.
We need t save energy.