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该掌握的语言点
Paragraph 1
 While : indicate a sharp contrast between the two sentences.
 have a profound effect on
no less dramatically:as dramatically as
 biotechnology
 virtually      adv.

 three main areas: genetics, embryology and microbiology
Paragraph 2
 Genetics is the study and manipulation of genes in plants and animals.[definition]
 alter DNA

Paragraph 3
 The implications of this are dramatic. [topic S]

implication> implicate [imply]隐含的意义

desired characteristics: expected -
be resistant to disease

 or again,…
Paragraph 4
identical units:adj. Being the same: Exactly equal and alike.

cloning
Paragraph 5
Genetic science does also have a relevance for human beings.

Paragraph 7
 AI Artificail insemination
 moral and legal problem
 other than

 alternatively:[transitional]

 surrogate motherhood
Paragraph 8
 microbiology, the study of bacteria (microben.微生物, 细菌)…[definition]
Paragraph 9
 Bacteria are tiny organisms which …[definition]
 have the most positive advantages to man
 “toxic ” waste
 liquefy 
 convert sunlight into electrochemical energy
 biological solar cells

Key to the exercises:
1. Language work:
In other words:
1. manipulation   2 profound  3. identical   4. have yield
5. implanted    6. screened   7. relevant   8. potential
B. Work with sentences
1. Television commercials can sometimes have am important effect on…
2. …are accused of passing on their cost increase to...
3. …some Indian communities are resisting Western culture…
4. …as a governess gave birth to the autobiographic novel…
5. …program falls into five stages.
6. …the woman converted the study into a guest room.
7. … device capable of purifying sea water.
8. Under normal conditions, --- Within limits, …
2. Read more:
1.T  2. F 3.  F 4.  F 5. T   6.T   7. T   8. NM

 in a Brave New World approach: in a method that can only be imagined in a science fiction
 devise a method [设计,创造, 发明To form, plan, or arrange in the mind; design or contrive]
 nuclei  A plural of nucleus 细胞核
 foster mother 养母
 engineer: To alter or produce by methods of genetic engineering:改变，制造用遗传工程学的方法改变或生产：
 propagate : to multiply; To breed (offspring). 繁殖生育（后代）
persuade cultures cells
totipotent adj.【动】能由(分)裂球变成胚胎的; 全能性的, 两性的
quiescent adj. Being quiet, still, or at rest; inactive.
See: latent
 The work opens up vista of…
vista: (从两排树木或房屋等中间看出去的)狭长的景色; 远[深]  (树木、房屋等)排成列的景色; 林荫路
(对往事)一连串的追忆; (对前景)一系列的展望
synonyms: outlook perspective scene scenery sight view
shady vista of elms夹道遮荫的榆树
a vista of the lake 湖的远景
look back through the vista of the past追忆一连串的往事
a vista of the future 展望未来
 pharmaceutical adj制药的；调药的
 hazard: A chance; an accident.机会；偶发事件/A chance of being injured or harmed; danger: ；危险：
at all hazards不顾一切风险; 在任何情况下
at hazard 胡乱地, 随便地; 瞎碰地; 侥幸地; 毫无计划地
in hazard在危险中, 受到威胁
‘hazardous adj.
 fall prey to 
 be [become, fall] a prey to成了...的受害者[牺牲品], 受...的折磨
 easy prey容易捕获的猎物; 容易上钩者; 头脑简单的人
 make a prey of把...当作食物[猎获物]
 seek after one's prey寻食; 寻求战利品
 prey on [upon] 捕食, 杀害
 succumb to 屈服于To submit to ; yield to; give up or give in. to die of
succumb to temptation 屈服于诱惑
succumb to disease病死
trans: 8. He finally succumbed to temptation and had another drink. 
 blight 植物的病害; 虫害；枯萎病
 feel one’s way
trans: 7. I have to stick to the plan as I’m still feeling my way.

3. Grammar work :
a. (omitted)
b. 1. where  2. why  3. in which/that/ - 不填
  4. when  5. that  6. where  7. whose 
8. why  9. whose  10. when
4. Vocabulary work
a. 1. d  2. e  3. f  4. b  5. a  6. c
b.1.  chemist  2. physicist  3. zoologist  4. geneticist
5. information technologist /IT engineer 
6. Cyberneticist   7. civil engineer 
5 Translation
1. The business of this company falls into two categories: commercial electric appliances and household electric appliances.
2. The farm yields enough crops to meet our needs.
3. Through biotechnology, a new type of tomato has been bred which is resistant to disease.
4. He managed to make the boss see the relevance of what he was doing to the company’s business.
5. I’m very fond of Hemingway’s novel, Farewell to Arms in particular.
6. The sofa can be converted into a bed when unfolded.
7. I have to stick to the plan as I’m still feeling my way.
8. He finally succumbed to temptation and had another drink.