高中英语人教版 (新课标)必修1&2Unit 4 Wildlife Protection课前预习ppt课件

这是一份高中英语人教版 (新课标)必修1&2Unit 4 Wildlife Protection课前预习ppt课件，共43页。PPT课件主要包含了Reading，several，Liaoning ，think，dodo，渡渡鸟，Listening，Speaking，dinosaurs，dust等内容，欢迎下载使用。
Dinsaur is an animal that we can nt see n the earth nw. What we see in the museum are the fssils f many kinds f dinsaurs. They were fund by the peple at hme and abrad. Sme dinsaurs have lng necks and tails, while thers lk like birds.
Enjy the vide
Using language
1. When did dinsaurs live? Tens f millins f years ag. 2. When did dinsaurs die ut? Abut 65 millin years ag.
3. Hw did dinsaurs die ut? A large rck hit the earth and put t much dust int the air. The earth gt t ht t live n.
True r false
There are many different species f dinsaur and all f them have been fund in China.Nt lng ag, a rare new species f bird-like dinsaur was discvered in Henan Prvince.
3. Sme scientists are sure dinsaurs died ut because the earth gt t ht fr the dinsaurs t live n any mre.4. Dinsaurs died ut quickly abut 65 millin years ag and many animals have died ut in the same way.
1. They lived n the earth tens f millins f years ag, lng befre humans came int being and their future seemed secure at that time. [点拨1] 本句是一个由and连接的并列句，其中，lng befre 引导时间状语从句，进一步解释说明tens f millins f years ag，意为“在……之前很久”。注意：befre lng 意为“不久以后”。
Language pints
[点拨2] n the earth. 在地球上。在earth, sun, mn等表达世界上独一无二的名词前, 要加the。 [点拨3] cme int being的意思是“开始存在;发生”。我们不知道这世界是什么时候存在的。　　　　　　　　　　　　　　We dn’t knw when the wrld came int being.
如：I knew Tm lng befre I knew yu. 我在认识你之前很久就认识汤姆了。We hpe t finish ur experiment befre lng. 我们希望不久就把实验做完。
It ___ lng befre we___ the result fthe experiment.A. will nt be; will knw B. is; will knwC. will nt be; knw D. is; knw
拓展：befre lng 不久以后
2. When scientists inspected the bnes, they were surprised t find that these dinsaurs culd nt nly run like the thers but als climb trees. [点拨] 本句中的t find that ...是不定式作原因状语。不定式用来表原因时，常修饰表示情感、心理状态、性格等的形容词，如：
happy， glad，lucky， frtunate， surprised， angry，anxius， cruel， clever， frightened，shcked， srry， eager， prud，disappinted， flish， impatient，unwise， naughty等。如：
We were surprised t see him. 我们真想不到会见到他。We are prud t be yung peple f new China. 作为新中国的青年，我们感到很骄傲。Yu were flish t act like that. 你那样做很愚蠢。
3. Sme scientists think it came after an unexpected incident when a huge rck frm space hit the earth and put t much dust int the air. [点拨] 本句中when引导定语从句，其先行词为incident。关系副词when 的先行词一般是表时间的名词，如: He came last night when I was ut. 但有时并不直接是表时间的名词，如：
In 1921 Einstein wn the Nbel Prize, and was hnred in Germany until the rise f Nazism when he was driven frm Germany because he was a Jew. 1921年爱因斯坦获得了诺贝尔奖，他在德国很受尊敬。纳粹上台后由于他是犹太人而被赶出了德国。
4. Accrding t a UN reprt,…. accrding t 根据, 据…说 Accrding t Jhn, the bank clses at 4 p.m. Each man will be paid accrding t his ability.
DD鸟是一种不会飞的鸟，仅产于毛里求斯肥。拥有肥胖的身子和巨大的嘴。 16世纪后期，欧洲殖民者来到了毛里求斯。不会飞又跑不快的DD鸟很快成为欧洲人来到岛上后主要的食物来源。人们开始大量的滥捕滥杀可怜的DD鸟，有时每天可以捕杀到几千只到上万只。 由于过度的捕杀,很快岛上DD鸟便得越来越少。1681年，最后一只DD鸟被残忍的杀害后，从此，地球上再也见不到这种东西了，除非是在博物馆的图片中。
Ex 3 Chse the sentence which gives the main idea f the stry. Say what is wrng with the ther three.
Number 2 is crrect.Number 1 is wrng. It is nt fair t blame the dd fr his disappearance.
Number 3 nly explain half the stry. The dd and man did becme friends but nly because man wanted t kill all the dds as easily as pssible. Number 4 is wrng because the ther animals and birds did nt d much t save the dd. They warned him but did nt help him.
Listen t the tape and chse the crrect answer t cmplete each sentence.
1. The dd is_____. A. fierce B. unkind C. friendly D. flish
2. He wants t believe that Man is telling the truth because _____. A. Man is friendly B. he think Man is friendly C. he thinks the bears and mnkeys lie D. Man is his best friend
3. He didn’t realize wh had killed many f his friends until _____. A. Man tld him the truth B. the ther birds tld him C. he saw hw his friend was being killed by Man D. the mnkeys tld him
fierce adj. 凶猛的, 好斗的The huse is guarded by a fierce dg. 激烈的,猛烈的The cmpetitin fr jibs is fierce.
In pairs chse anther endangered animal which yu knw abut. Analyse why this animal is endangered.
I. 根据下列各句句意及所给单词的首字母或汉语提示，写出该单词的正确形式。1. The natural histry museum has a special exhibitin f _________ (恐龙).2. The car raised quite a lt f _______ (尘土) as we drve ff.3. The plice are cnnecting this _______ (事件) with last week’s terrrist bmbing.
4. Because there is s much unemplyment, the cmpetitin fr jbs is f_______.5. I quite enjyed the bk except the dull e_______.
II. 根据括号内所给的提示将下列句子翻译成英语。一个新规则很快就要出台了。(cme int being)2. 很奇怪，上火车前，竟然没有人查看我的车票。(inspect)
A new rule will sn cme int being.
It was strange that nbdy inspected my ticket befre I gt n the train. mirage
3. 根据专家的意见，他们马上放弃了这项试验。(accrding t)4. 把它拿近点儿，让我好好看看。(s that)
Accrding t expert pinins, they gave up the experiment immediately.
Bring it clser s that I can see it better.
III. 将下面方框中表示时间的短语填入短文中，使短文连贯。lng befre, nt lng ag, at that time, after, in such a shrt time, recentlyThe stry happened 1__________. Old Je and his sn Tny were n their way t White River t catch sme fish. They started n the trip 2__________ the sun came up. 3_______ they had driven fr a while, they saw a big trtise (龟) n the rad.
“I haven’t seen such a big trtise 4_______,” Old Je said t his sn. When I was yung, there were a lt f trtises in White River. They lived happily in the river 5_________. We hadn’t thught they nearly disappeared 6________________.”“Let’s help it return t the river, shall we?” said his sn.“That’s a gd idea,” said Old Je.S they carried the trtise int their car and put it in the river finally.
in such a shrt time
at that time
t help/save
I intend/ mean/ plan t
t prtect…frm…
I’d rather nt…
I’m ready t
I feel like…
t teacher them a lessn.
t punish thse wh d harm t wildlife.
Write a letter t WWF based n what yu have discussed, asking them t help yu save yur endangered animal.
Dear WWF,My friend, Chen Ting, and I have been ding sme research n endangered animals. We fund that the habitat f plar bears is disappearing because the ice at the Nrth Ple is getting warmer. I wrry that when is disappears altgether, there will be nwhere fr the plar bears t live.
Sample letter
First, I suggest we are very careful with the energy we use. Glbal warming happens because we are putting t much carbn dixide int the air. One f the ways we d this is by driving everywhere by car. S I suggest we think carefully befre using ur cars unnecessarily.
Secnd, instead f using ur cars we shuld think abut traveling by bus r by train. These frms f transprt are mre envirnmentally friendly and d nt put s much carbn dixide int the atmsphere.
Third, we can jin WWF which is fighting t save the habitat f the plar bear. We can raise mney t help them by making and selling cakes, selling crafts r giving talent shws and charging mney fr ur parents t watch.