初中外研版（2024）Understanding ideas图文课件ppt

这是一份初中外研版（2024）Understanding ideas图文课件ppt，共33页。PPT课件主要包含了ocean，space，Three ，the ants，羽毛覆盖的，Practice，proved his，proved，invented等内容，欢迎下载使用。
dinsaur/ˈdaɪnəsɔː/ n.恐龙feather/ˈfeðə/n.羽毛feather-cvered/ˈfeðə ˈkʌvəd/adj.羽毛覆盖的lizard/ˈlɪzəd/n.蜥蜴amber/ˈæmbən.琥珀whether/ˈweðəcnj.是否nrthern/ˈnɔːðən/adj.北部的species/ˈspiːʃiːz/n.物种unknwn/ˌʌnˈnəʊn/adj.未知的African/ˈæfrɪkən/adj.非洲的belief/bɪˈliːf/n.观点fully/ˈfʊlli/adv.完全地unlck/ˌʌnˈlɒk/v.揭开unlck the secrets f sth 揭开某事的秘密
Starting ut
Secrets caught in time
What can yu see in the picture?A man is hlding a flashlight in a desert at night. I can als see many stars in the sky.
What d yu think the man is ding?Maybe he is watching the stars.
What are yu ging t learn in this unit?
discveries in nature
unslved secrets f nature
spirit f nature explratin
came up with the thery f evlutin
made cntributins in maths and astrnmy
Lk at the pictures and match.
a famus British bilgist
a famus dctr in the Ming Dynasty
a well-knwn female scientist in the Qing Dynasty
What d they have in cmmn?
They all studied nature. They taught ther peple abut nature, t.
Think and answer.
Answer the questins.
human beings
What secrets f nature d yu knw?
What lives in the deepest parts f the cean?
Is there life amng the stars?
Lk and say.
1. What is this? A piece f amber.2. Is amber abut things in the past r things in the future? It is abut things in the past. It can tell us hw things have changed ver time.
What is the passage abut?
Lk and guess.
The passage is prbably abut the amber that saved things lng time ag.
A. Hw amber helps scientists unlck the secrets f nature.B. Hw t make amber and use it in daily life.C. Hw amber came int being.
Listen t the passage and chse.
Listen and talk.
The passage is abut hw amber helps scientists unlck the secrets f nature. It serves as a windw n the past and help us understand the histry f species.
Fast reading.
Hw many secrets are mentined in the passage? What are they?
1 Imagine a dinsaur in an ancient frest. It is running arund, lking fr its next meal. With an angry cry, it pens its muth, raises its beautiful feather-cvered arms, and… 2 Wait, feathers n a dinsaur? Fr hundreds f years, peple believed that dinsaurs lked like huge lizards. Just lk at all thse dinsaurs in bks, films and TV shws! Hwever, thanks t a piece f amber, scientists nw knw that this idea is wrng. In the amber frm Sutheast Asia, they fund the tail f a dinsaur – with feathers.3 These beautiful glden stnes quietly keep pieces f the past. They can tell us whether dinsaurs had feathers, but that’s nt all. They als help us understand that life n earth has always changed. A piece f amber frm Nrthern Eurpe, fr example, hlds a flwer. This species n lnger grws in this area. But the find prves that it did 35 millin years ag. In the future, amber may als help us discver if ther species have changed ver time.4 Thanks t amber, mre than 300 unknwn species have been discvered. In a piece f amber frm Africa, scientists fund 13 ants. Research shws that they are a cmpletely new species. Scientists used t believe that ants came frm the nrthern half f the earth. The discvery f this African species has changed ld beliefs abut the histry f ants. Wh knws whether this piece f amber will tell us mre secrets?5 As a windw n the past, amber has been much studied. Hwever, it’s still nt fully understd. We shuld put mre effrt int research. Then we can use this key t unlck mre secrets f nature.
Secret 3: the ants
Secret 1: the dinsaur
Secret 2: the flwer
Read and fill in the frm.
A dinsaur tail with feathers.
In Sutheast Asia.
Dinsaurs had feathers.
What dinsaurs lked like.
In Nrthern Eurpe.
The flwer grew there 35 millin years ag.
Life n earth has always changed.
The ants are a new species. Ants came frm the nrthern half f the earth and lived in Africa.
There are many unknwn species fr us t discver.
Cmplete the diagram with the wrds and expressins frm the passage.
1. secrets2. Thanks t3. changed4. 35 millin 5. unknwn6. ant7. windw8. nature
Retell the passage.
the dinsaur
a windw n the past
a key t unlck mre secrets f nature
1. What d yu think f the paragraphy 1? Why des the writer begin like this?
Think and talk.
It is exciting and interesting. The beginning is t draw readers’ interest and make them want t read mre.
1. What are sme ther ways fr yu t learn abut nature’s secrets?
We can learn abut nature’s secrets by reading bks, visiting museums, explring the utdrs, ding experiments, ding research, and s n.
Language fcus
key phrases
Find ut the phrases in the passage.
lk frhundreds fthanks tkeep pieces f the pastn lngerver timemre thanused t d sth.unlck the secrets f sth.
1 Imagine a dinsaur in an ancient frest. It is running arund, lking fr its next meal. With an angry cry, it pens its muth, raises its beautiful feather-cvered arms, and… 2 Wait, feathers n a dinsaur? Fr hundreds f years, peple believed that dinsaurs lked like huge lizards. Just lk at all thse dinsaurs in bks, films and TV shws! Hwever, thanks t a piece f amber, scientists nw knw that this idea is wrng. In the amber frm Sutheast Asia, they fund the tail f a dinsaur – with feathers.
羽毛 成百的
蜥蜴
多亏了 琥珀
3 These beautiful glden stnes quietly keep pieces f the past. They can tell us whether dinsaurs had feathers, but that’s nt all. They als help us understand that life n earth has always changed. A piece f amber frm Nrthern Eurpe, fr example, hlds a flwer. This species n lnger grws in this area. But the find prves that it did 35 millin years ag. In the future, amber may als help us discver if ther species have changed ver time.
保存过去的片段
是否
北部的 不再
物种 随着时间推移
4 Thanks t amber, mre than 300 unknwn species have been discvered. In a piece f amber frm Africa, scientists fund 13 ants. Research shws that they are a cmpletely new species. Scientists used t believe that ants came frm the nrthern half f the earth. The discvery f this African species has changed ld beliefs abut the histry f ants. Wh knws whether this piece f amber will tell us mre secrets?
超过
过去常常做某事
5 As a windw n the past, amber has been much studied. Hwever, it’s still nt fully understd. We shuld put mre effrt int research. Then we can use this key t unlck mre secrets f nature.
完全地
揭开某事的秘密
Find the sentences in the passage.
1.想象一下,在一片古老的森林里有一只恐龙。Imagine a dinsaur in an ancient frest.2.数百年来,人们认为恐龙看起来像巨大的蜥蜴。Fr hundreds f years, peple believed that dinsaurs lked like huge lizards.3.这些美丽的金色石头静静地保存着过去的片段。These beautiful glden stnes quietly keep pieces f the past.4.多亏了琥珀,300多种未知物种已经被发现了。Thanks t amber, mre than 300 unknwn species have been discvered.5.作为窥探过去的窗口,琥珀已经被深入研究。As a windw n the past, amber has been much studied.
key sentences
prve v.证明;证实·prve + that + 从句 “证明……”;·prve sth.t sb.“向某人证明某事”;·prve后接形容词、名词。 “证明是;结果是”。The plan prved (t be) useful.这个计划证明是有用的。
But the find prves that it did 35 millin years ag.但这个发现证明,它在 3500 万年前曾存活于此。
(1)完成句子:他的努力工作证明了他的价值。His hard wrk 　　　　　　　　value. (2)改写句子:The experiment prved that the thery was crrect.=The experiment 　　　　　　the crrectness________　　　　the thery. 
discver vs invent•discver侧重 “发现” 已有事物，指发现原本存在但不为人知的事物。•invent侧重 “发明” 新事物，指发明创造出原本不存在的事物。
Thanks t amber, mre than 300 unknwn species have been discvered. 多亏了琥珀,300多种未知物种已经被发现了。
(1)用discver或invent的适当形式填空:Clumbus 　　　　 　　America in 1492. Edisn 　　　 　　　the light bulb in the 19th century. (2)完成句子:科学家们在这片森林里发现了许多新物种。Scientists 　　　　　　　　　　　　　　　　　in this frest. 
discvered many new species