高中Unit 5 Into the unknown优质课ppt课件

这是一份高中Unit 5 Into the unknown优质课ppt课件，共23页。

Part One Grammar
Fill in the blanks & decide the type nun clause
1. Althugh his thery has been dismissed by schlars, it shws _________ pwerful the secrets f Ancient May civilizatin are amng peple. This sentence cntains a ____________ clause.
2. But the greatest mystery f all is _________ caused the Maya t abandn mst f their great cities. This sentence cntains a ____________ clause.
predictive
Fill in the blanks & decide the type nun clause
3. __________ Maya civilizatin cllapsed in the early 16th century remains a mystery. This sentence cntains a ____________ clause.
4. The fact ___________ Maya sciety was technlgically primitive makes its achievements all the mre incredible and mysterius. This sentence cntains a ____________ clause.
Practice 1 Make nun sentences
1. In fact, it seems that they appeared very different frm ________________________ (think). 2. In recent, scientists have wrked ut _____________________ (lk): many f them were small with feathers. 3. Hwever, __________________ (have) feathers still isn’t clear--it might have been fr cmmunicating r fr staying warm, but nt just fr flight. 4. It seems _______________________ (depend n) their habitats. That is, dinsaurs which culd fly wuld have had different clrs t thse living in the sea.
what peple think
what they lked like
Why they had
as if they depended n
Practice 2 Use nun clauses
Talk abut what caused the disappearance f dinsaurs using nun clauses where apprpriate.
The disappearance f dinsaurs
Amng the many unslved mysteries abut dinsaurs, what really interests me is their disappearance. One pssible explanatin is that there was a huge meterite hitting Earth. But what I believed mst was ash and gas frm erupting vlcanes. Where s much magma went, all the living things including dinsaurs lst their lives. Besides, it is a fact that cluds f fire and smke blcked the whle sky s that they had n sunshine t enjy and n xygen t take in.
Part 2 Fcus n vcabulary (一）
Facing the unknwn
Read the passage “Facing the unknwn”
1. What is the flight instinct? Why d sme peple react that way in the face f the unknwn?
Making a quick getaway. It is a human instinct.
2. What ther reactins culd peple have when facing the unknwn?
They chse t subdue their fears and pursue the unknwn.
Fcus n vcabulary (二）
Cllect the expressins and put them int cateries
3/4/9/10/14
Part 3 Listening
Befre listening, read the passage cncerning the human brain.
1. What functins f the brain are mentined in the passage? 2. What is the current research situatin cncerning the brain?
1. What functins f the brain are mentined?
The brain is the centre f the nervus system and cntrls mst f the bdy’s activities. The back part f it is invlved with ur visin and the sides f it are invlved in memry, speech and rhythm.
2. What’s the current research situatin abut the brain?
There is still a lng way t g befre we can cmpletely understand the wrkings f the brain.
Listen t the interview
1. Chse the tpic discussed in the interview. A. Methds t keep the brain healthy and active. B. Sleep-related mysteries. C. Ways f imprving sleep quality. D. Methds f interpreting dreams. 【答案： 】
Listen again and cmplete the table
rest and d maintenance
makes lts f pisnus chemicals
remve these chemicals
New cnnectins are frmed between parts.
use them t frm new memries
remain active
enugh data
the mst imprtant reasn
sleep is necessary t this functin
Why d peple dream in clr and ther dn’t?
Pst listening
Discussin
Pssible visin： The aliens are a general term used by humans t describe imaginary life frm ther planets. Nwadays, the human beings have nt actually detected whether there are aliens in universe, thugh quiet a few peple said that they witnessed alien visit the earth. In the last 50 years f researches, astrnmers have nt fund any cnclusive evidence f extraterrestrial life.
Talk abut the investigatin int anther scientific mystery.
Language appreciatin
1. There are many mysteries abut dinsaurs t which we lng t find explanatins. [句式分析] “t which we lng t find explanatins” 为 定语 从句，其结构为“介词 t +which +从句”用来修饰说明先行词 mysteries abut dinsaurs 其中介词与explanatins构成固定搭配explanatins t sth意为“对...的解释”；固定短语lng t d sth意为“渴望做某事”。[尝试翻译] 有许多关于恐龙的谜团，我们渴望找到解释。
2. Interestingly, it is the back part f the brain that is invlved with ur visin. [句式分析] 本句为 强调句 句式“It’s + 被强调部分 +that +句子的其余部分”，本语境为“It’s +主语+ that+句子的其余部分”，句中短语be invlved with意为“与...关联，涉及到”。 [尝试翻译] 有趣的是，大脑的后部与我们的视觉有关。
Language pints
Assignments fr this perid
1. Review the basic usages f the new wrds and expressins learned in this perid. 2. Review the nun clauses in practice. 3. Writing a 60-wrd summary f the passage.