本站QQ客服在線 |
視頻標簽：湖北好課堂
所屬欄目：高中英語優質課視頻
視頻課題：2017年“湖北好課堂”高中英語優質課錄像視頻（附課件）Unit2 Using Language--Reading and WritingThe Return of the Dinosaurs孝感
教學設計、課堂實錄及教案：2017年“湖北好課堂”高中英語優質課錄像視頻（附課件）Unit2 Using Language--Reading and WritingThe Return of the Dinosaurs孝感
Teaching plan for Book 8 Unit2 Using language
The return of the dinosaurs?
Step 1 Lead –in
First talk about the relationship between man and nature.Then introduce
the development of human beings , the whole world and the science and
technology. Then talk about the AI and cloning.
Step 2 Skimming
Skim the passage, find some information about Cloning and then arrange the following statements according to their time order.
a. Cow gave birth to a bison
b. Research using the embryos of mice
c.First cloning of a mammal
d. First experimental clones of cows
e. Work on embryos of sheep and mice
f. Cloning of frogs
g. China's first cloned twin calves
h. First experimental clones of mice
Step 3 Reading comprehension
First show a short video of Jurrasic World,then introduce the topic : cloning the dinosaurs.
Read para2 and choose the right answers.
1 The reasons why the returning of dinosaurs to the EARTH is impossible and unsuitable are the following except_______.
A. no perfect DNA for the growth of cells.
B. no diversity of genes arranged in different ways.
C. that there is no suitable habitat for dinosaurs.
D. that the present high technology is unable to clone extinct animals.
2 Why does cloning need perfect DNA and diversity in groups?
A. Because it can clone animals without diseases.
B.Because it can pass on its ability to resist diseases and continue the species.
C.Because it can close much more advanced generations.
D.Because it can make the cloning animals live longer and healthier.
Answer the following questions:
1.Have you ever seen the film Jurassic Park? Do
people like this film? What animals do you see in the film? Are they real dinosaurs?Do you think it is possible to clone dinosaurs? If not,why? If yes, do you think that’s good for human beings? Why?
1. The writer of the text_____ A. is excited by the possibility of cloning fierce and extinct animals B. believes that extinct animals can be brought back to life by cloning C. thinks it impossible or unsuitable to clone extinct animals like dinosaurs D. dreams of dinosaurs returning to the earth
細枝末節
2. The film Jurassic Park is popular because _____. A. A people are interested in the subject of cloning B. all the actors are dinosaurs C. it was directed by a scientist who clones dinosaurs D. it proves very interesting
3. Which of the following is true? ____ A. Mice were cloned in 1981. B. Dolly the sheep was the first cloned animal. C. The name of the cloned cow is “Bison” D. China was successful in cloning mammals.
4. The reasons why a group of cloned animals all die of the same illness do NOT include____. A. they have the same arrangement of genes B. there isn’t enough diversity in the group for it to overcome illnesses C. the illness is a new one D. their arrangement of genes can not resist that new disease
5. We can infer from the text that____ A. scientists are experimenting to clone dinosaurs B. dinosaurs will never return to the earth C. cloned animals will only live in the zoo D. the DNA of dinosaurs can only survive 10 000 year
Give some reasons why it is either impossible or unsuitable to clone extinct animals
Reason 1: You need perfect DNA
Reason 2: All efforts of cloning an animal will be in vain if there is not enough diversity in this group to overcome illnesses
Reason 3: It would be unfair to clone any extinct animals if they live in a zoo. were to
長句分析/ 近義詞：1. The popularity of the film Jurassic Park, in which a scientist clones several different kinds of extinct how the idea struck a mixture of fear and excitement dinosaurs, proves . into people’s heart.本句是一個復合句， in which 引 導 非限制性定語從句 ，修飾 films；how 引 導 賓語從句 ，作 prove 的賓語。在《侏羅紀公園》這部電影中，有一位科學家克隆了好 幾種不同的絕種恐龍。類似這樣的電影很受歡迎，證明 了這一想法使人們感到既興奮有恐懼。 strike fear, etc into somebody/somebody’s heart 使某 人感到恐懼 The tsunami struck fear into the people of the tsunami-hit countries 這場海嘯使得受災國家的人民膽戰心驚。
2. From time to time people suggest that extinct animals like dinosaurs, can possibly be brought back to life through cloning. ? 人們時常設想從地球上消失的動物,例如恐龍,有可能通過克隆技 術使它們復活。 The car manufacturers changed the car models from time to time. ? ? He only comes to the company from time to time. 他只是偶爾 【歸納總結】 不時，偶爾 ? from time to time_______ _， 等于 ___________,_____________ 。 occasionally now and then （1 He becomes quite unreasonable from time to time. ______________________________. They quarrel from time to time.
3. All efforts of cloning an animal will be in vain if there is not enough diversity in the group to overcome illnesses. 如果某個動物群體沒有足夠的多樣性以戰勝疾病，那么 克隆這種動物的所有女里都將是無用的。in vain 無效果的，無用的The girl tried in vain to open the locked door. 女孩怎么也打不開鎖著的門。 為挽救那個患癌癥的男孩的所有嘗試都無濟于事。
All attempts to rescue the boy with cancer were in vain.
4 Diversity in a group means having animals with their genes arranged in different ways. 譯： 群體的多樣性是指這群動物的基因要以不同的方式排列 ___________________________________________ ___.
[句式透析] with their genes arranged in different 作定語 ways作_____________, in different ways 意思是 以不同的方式 _____________________ 。
5 . ...but others will survive and pass on the ability to resist that disease to the next generation
......其他的將存活下來并傳遞給其后代抵抗這種病的能力。
【觀察探究】They resisted the attack. 他們抵抗那次攻擊。 She resisted being carried off. The material resists water. She could not resist the temptation.
抵抗 resist作及物動詞主要有兩個義項：_________ ； 對抗 ______________ ；（與cannot， could not
I__________________________. cannot resist chocolate. (1) (2) ____________________________. They decided to stay and resist the enemy.
6 Based on what we know now, , you can not clone animals that have been extinct longer than 10000 years. 據我們現在所知, 絕種一萬年以上的動物不能克 隆。 base -----on/upon---- 以……為基礎, 依據其結構為: base sth. on/upon、 sth. is based on/uponYou must base your words on facts. 你說話要有事實根據。 據我所知，他只上了三年學。
Based on what I know, he attended school for no more than three years.
Step4 Summary
Cloning mammals is still a ______science. Dinosauras became extinct_____ million years ago. It's either _________or __________ to clone dinosaurs,because the _______ requirement is ________DNA. So is the _________ in the group to ________ illnesses. So cloning dinosaurs is ________ a dream.
Step5 Homework
Extracurricular Reading
視頻來源：優質課網 www.jjlqy.cn
