2015-2016高中英语 unit2 section3《Using Language》练习 新人教版选修8

课堂要点探究
ห้องสมุดไป่ตู้
• 1.apparently adv.看来；显然；显然地；显 而易见地 • ①Apparently，they are getting married soon. • 很显然，他们要结婚了。 • ②I thought he had found a new job，but apparently he hasn't. • 我原以为他找到了新工作，但显然还没有。 • 知识拓展
reform reformist • 7．________( v.)改革；革新 →__________( n.)改革家 conductor • 8conduct ．___________(n.)(公车)售票员；列车员； take place/happen/come about (车队)指挥→________( v.) 指导，指挥；管理 • 9．occur (vi.)发生；出现 slipped slipped →___________________________ • (同义词或短语) • 10．slip (vi.) 滑动，滑行 →________/________(过去式，过去分 词)(n.) 滑动，滑倒
• 答案：1.Bus 2.San Francisco Bay 3.Fisherman's Wharf 4.Exhausted 5.79km round-trip 6.Chinatown 7.museum 8.Ferry 9.Angel Island 10.the Golden Gate Bridge 11.Thoughtful
• 活学活用 • It is quite________that he has no intention of changing his mind. • A．central B．apparent • C．major D．essential • 答案：B apparent意思是“显而易见的”； It is quite apparent that“„„是显而易见 的”。A选项central意思是“中心的”；C选 项major意思为“主要的”；D项essential意 思为“基本的”。句意为“显而易见，他不 打算改变自己的主意。”

Un it 2 Clo ningPeriod 4 Using Ian guageTeach ing Aims:1. 掌握以下单词和短语的拼写和用法：strike ...into one's heart 、from time to time bring back to life 、in vain 、resist 、merely、initial2. 通过运用略读和扫读两种阅读方法完成阅读任务；3. 通过本节课的学习，增进学生对克隆技术的了解，培养学生对科学的兴趣。

Step 1 Lead ing inLook at the following pictures and think which film they are from.Do you like dino saurs? Can you see them in our real life? Why?Step 2 Readi ngTask 1 Skimmi ng （match the main idea with each paragraph）Part 1 A. Reas ons for not cloningPart 2 B. Possibility of clo ningPart 3 C. History of clo ningPart 4 D. Conclusion（结论）Task 2 ScanningTask 3 Choose the best an swer :1. The film Jurassic Park is popular because ______ .[Part 1]A. people are in terested in the subject of clo ning ext inct an imalsB. all the actors are dino saursC. it was directed by a scie ntist who clones dino saursD. it proves very in teresti ng2. Which of the following is true?[Part 2]A. Mice were cloned in 1981.B. Dolly the sheep was the first cloned ani mal.C. The n ame of the cloned cow is “ Bis on ” .D. China was successful in cloning mammals.3. The writer of the text ___ .[Part 3]A. is excited by the possibility of cloning fierce（凶猛的）and extinct animalsB. believes that extinct animals can be brought back to life by cloningC. thinks it either impossible or un suitable to clone ext inct ani malsD. dreams of dino saurs retur ning to the earth4. We can infer（推断）from the text that ___ .[Part 4]A. scientists are experimenting to clone dinosaursB. dino saurs will n ever retur n to the earthC. cloned ani mals will only live in the zooD. the DNA of din osaurs can only survive 10,000 yearsStep 3 Lan guage Points1. strike vt. & vi. 打；撞击；罢工n. 罢工【用法归纳】【”不时，偶尔”的多种表达方式】你还记得有关time的常用习语吗?【bri ng短语归纳】【单词积累】Step 4 Game TimeLet' s play a game. Which is the best group?Step 5 PracticeFill in the bla nks with the phrases give n.1. Our teacher _____ the importanee of safety __________________ , so we were all carefulwhe n cross ing the street.2. My uncle comes to have dinner with us _______________ .3. I'm afraid that your efforts are______ ; he would n't liste n to others.4. His mother died last year. He wished he could ___her __________ .Step 6 Homework1. Review the words and Ian guage poi nts we have lear ned in this class.2. Read more articles about cloning and the natural world.Read ing comprehe nsion:Research adva nces over the past decade have told us that, with a little work, wehuma n can clone just about any thi ng we want, from frogs to mon keys and probably eve n ourselves! So, we can clone things, but why would we want to?Of all the reas ons, cloning for medical purposes has the most pote ntial to ben efitlarge nu mbers of people. How might cloning be used in medici ne?1. Cloning ani mal models of diseaseMuch of what researchers learn about humandisease comes from studying animal models such as mice. Often, ani mal models are gen etically engin eered to carry disease-caus ing mutati ons（变异）in their gen es. Creati ng these tran sge nic（转基因的）animals is a time-intensive process that requires trial-and-error and several gen erati ons of breedi ng （培育）.Cloning tech no logies might reduce the time n eeded to make a transgenic animal model, and the result would be a population of genetically iden tical ani mals for study.2. Cloning stem cells（干纟田胞）for the treatment of diseasesStem cells are the body's building blocks, responsible for developing and repairingthe body throughout life. As a result, they might be used to repair damaged or diseased organs and tissues. Researchers are currently looking up cloning as a wayto create certa in huma n stem cells for the research of diseases.3. Cloning farm ani mals for drug producti onFarm animals such as cows, sheep and goats are currently being genetically engineeredto produce drugs or proteins that are useful in medicine. Just like creating animalmodels of disease, cloning might be a faster way to produce large herds of genetically engin eered ani mals.1. From Purpose One, we can infer that ___ .A. most transgenic animals are cloneB. most animals carry engineered genesC. most transgenic animal models are not clonedD. most animals carry disease-causing mutations in their genes2. It can be lear ned from Purpose Two that cloning tech no logies can be mainly usedto ___ .A. create damaged or diseased organs and tissuesB. clone genetically defined human stem cellsC. develop and maintain the bodyD. repair the body throughout life3. Accord ing to Purpose Three, cloning tech no logies can be mainly used to _A. speed up the producing of genetically engineered animalsB. produce drugs or proteins that are useful in medicineC. raise genetically engineered cows, sheep and goatsD. produce large herds of animals for human beings。

2.retirevi.退休；离开 【语境领悟】 ① Whenheretiredhewouldbeabletolookbackonhislifewithsatisfact ion. 他在退休后能够满意地回顾往事。 ②Shewasforcedtoretireearlyfromteachingbecauseofillhealth. 她由于身体不好而被迫提前从教学岗位上退休。
bother
Ifyoureturnmethebook,Iwillsto 指因小事而烦扰
pbotheringyou. 别人，带有故意
如果你把书还给我，我就不打 打扰他人的意思
扰你了。
trouble
尤指在行动上给人带来 不便或在身心上给人造 成痛苦
Whatistroublingyou?什 么事使你愁眉苦脸？
高中英语课件
（金戈铁骑 整理制作）
Unit2Cloning UsingLanguage
Ⅰ.根据所给汉语提示写出正确单词 1.Schooluniformisnolonger____c_o_m__p_u_ls_o(r强y 制的)inmany Britishschools. 2.TellmehowmuchI____o(w欠e),andI’llgiveittoyou. 3.He__re_t_i_re_d(退役)fromthearmylastmonth. 4.Don’t__b_o_th__er(费心)aboutdrivingmehome;I’llwalk.
④Owingtotherain,thematchwascancelled. 由于下雨，比赛取消了。 【归纳拓展】 (1)owesb.anapology该向某人道歉 owesb.sth.(=owesth.tosb.)欠某人某物 owe...to...欠……；把……归功于…… oweittosb.that...……归功于某人 (2)owingto...因为，由于……

2. Why is it wrong to clone an extinct animal if it would have to live in a zoo?
It is not a good idea to clone an animal that would have to live in a zoo because it is not a suitable habitat to develop and increase its numbers.The zoo is not a natural environment for a wild animal.
3. Why can’t you clone the DNA of animals that have been extinct longer than 10,000 years?
The DNA of animals more than 10,000 years old is not suitable for cloning ,for it can’t survive so long.
Do people like this film? What animals do you see in the film? Are they real dinosaurs?
Warming up ( 4ms )
2.Do you like dinosaurs? Can you see them in our real life? Why?
diversity
diversity
If there is a new illness some of these animals may die ,but others will survive and passed on the ability to resist that