人教版选修8 unit2 using language

Jurassic Park
哈蒙德博士立志要建立一个非同寻常的公 园: 恐龙将是这个公园的主角。他把众多科学 家收归旗下，利用琥珀里面困住的远古蚊子体 内的血液，提取出恐龙的基因信息，利用这些 信息培育繁殖恐龙。结果如愿以偿，他把努布 拉岛建立成了一个恐龙公园，坚信可以从中赚 取大钱。然而，科学家们则忧心忡忡。
of dinosaurs to the earth is merely a dream.
Group work
These animals are extinct ones. Which one should be
GArueartoAcbwhrhuosyku(?1g(16h82t47b4)a)ck toDliofed?o bAinrdd (1755)
Secondly, its large eggs and tasty meat could be developed for food.
Finally, farmers can sell its feathers as decoration. So I think the dodo would be the best choice to be brought back to life.
Discuss with your partner. The information on the textbook might help you.
Quagga (1883)
自学目标3 discuss and list the reasons for which extinct animal should be cloned
不幸的事情果然发生了。虽然公园有电脑 系统管理，但却因为被员工破坏而造成了无法 挽救的失控:所有的恐龙逃出了控制区，人们纷 纷逃窜却逃不过恐龙的魔爪。恐龙自相残杀， 人们亦死难无数，最后幸存者寥寥，只得四人 逃出生天。努布拉岛上空弥漫着恐怖的气息。
Jurassic Park --a film clip
Writing
Let’s bring the great auk back to life
The great auk is the most suitable animal to be brought back to life. Here are the reasons：
Firstly, it’s feathers don’t absorb water, so it’s useful for protecting clothes from water.
Jurassic Park --a film clip
Teaching aims教学目标
1. Understand the passage and know more about the cloning of dinosaurs and the problem.（理解文章，了解 恐龙的克隆及存在的问题。）(Reading ability)
Welcome
Lead-in
1.Do you know anything about dinosaurs?
2.Have you ever seen the film Jurassic Park?
Dinosaurs
• Dinosaurs are a diverse group of reptiles of the clade Dinosauria (进化恐龙属). They first appeared during the Triassic (三叠纪 ) period, between 243 and 233million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research. They became the dominants after the Triassic– Jurassic extinction event 201 million years ago; their dominance continued through the Jurassic and Cretaceous (白垩纪)periods.
讨论建议:
1.通读四种已灭绝动物的信息。 2.挑选出自己认为最应该克隆的动物。 3.仔细阅读该动物的相关信息，展开大胆联想，给
出原因来阐述为什么这种动物最适合被克隆，能 够带来什么样的好处。 4.互相比较选择的动物，陈述各自的观点。
讨论时间：5分钟
Writing
Let’s bring the
back to life
目标1 understand the passage
建议：1. 获取文章大致信息 2. 第一遍快读了解故事大意 3. 第二遍细读获取细节信息
禁忌：1. 一口气从头一字一句读到尾 2. 见到生词就查字典
时间：5分钟
Task 1 连线
What’s the main idea of each paragraph?
• dHinoowseavuerrs,b_rbi_an4cg_ki_nt(gobrliinfeg)iseixm_t_ipn5oc_st_sa_inb(pilmeosaslsiblliek)eand unsuitable. There are many reasons: Firstly, we lack perfect DNA. Secondly，all efforts of cloning an animal will be _6_in_ vain if there is not enough diversity in the group _t_o_o_v7e_r_c_o_m(oevercome)
• briቤተ መጻሕፍቲ ባይዱg back to life 使 事
复活
• drawback 缺点、不利
• unsuitable 不适合的 • habitat 栖息地
• in vain 白费力气 • be based on 以…为
基础
• In the films Jurassic Park，scientists cloned several kinds ofe_x_ti1n_c_tdinosaurs, which proves how the idea s_t_r2u_c_k(strike) a mixture of fear and excitement into people’s _h_e3a_r_ts_(heart).
Para1
Para2 Para3
Explain the impossibility of cloning dinosaurs
Conclude that it’s just a dream
Introduce the topic of the passage
Answer
Task 2
True or False
3. If we can clone any extinct animals, we should let them live in a zoo.
目标2 use your own words to explain the reasons
why dinosaurs can’t be cloned
Task3
is the most suitable animal to be brought back to life. Here are the reasons：
Firstly,
Secondly,
Finally,
So I think
would be the best choice to
be brought back to life.
Some important words and phrases
• extinct 灭绝的
• diversity 变化 多样性
• strike …into one’s heart 使…刻骨铭心
• mean doing sth. 意味 着做某事
• from time to time 偶 尔
• mean to do 打算做某
Writing
Let’s bring the aurochs back to life
The Aurochs is the most suitable animal to be brought back to life. Here are the reasons：
Firstly, it has thick hair, and we can use its hair to make clothes.
illnesses. Thirdly, it would be unfair to clone any extinct animals if we can not offer thems_u_i8ta_b_l(esuit)
habitat. • B_a9s_e(bdase) on __w1h0a_t_ we know now, the returning
Secondly, its long horns can be used for decoration. Finally, it’s very large and strong, therefore we can
make it help farmers plough the field. So I think the aurochs would be the best choice to be brought back to life.
cloning mammals because they think it can
make money.
2. The animals that have disappeared from the earth, like dinosaurs, can be brought back to life through cloning.
Secondly, farmers can keep it as chicken to earn money.
Finally, it became extinct recently, therefore its DNA is still in good condition. So I think the great auk would be the best choice to be brought back to life.
Writing
Let’s bring the dodo back to life
The dodo is the most suitable animal to be brought back to life. Here are the reasons：
Firstly, it’s friendly and not harmful, so we can keep it as pet for children.
2. Use your own words to explain the reasons why the dinosaurs can’t be cloned successfully.(用自己的话来解 释恐龙不能被成功克隆的原因) (Summary ability)
3. List the reasons to bring one of the four extinct animals back to life. (Writing ability) (在四种灭绝动物选出最应该被克隆的动物并且列出原 因)
Read the text, then tell whether the following sentences are true or false. ( Students can discuss in pairs. )
1. Scientists are still experimenting with
Give some reasons why it is either impossible or unsuitable to clone dinosaurs.（one word for each reason）
Reason 1: Reason 2: Reason 3:
DNA Diversity Habitat