Everylivingthinghasgenes.Genescarryinformation. 36 ...
问题详情:
Every living thing has genes. Genes carry information. 36 They make sure that humans give birth to humans and cows give birth to cows. However, genetic engineers take genes from one species— for example, a snake, and transfer them to another — for example, corn. 37 Such new life forms have been described, by some scientists as a real-life Frankenstein. Genetic engineers put duck genes into chicken to make the chickens bigger. They put hormones(激素) into cows to make them produce more milk. They put genes from flowers into beans and from fish into tomatoes. 38 It just makes them easier and faster for the farmer to grow. The effects of genetic engineering on the natural world may be disastrous. The engineers may create strange life beings or monsters that we cannot control. 39 They’ll have to find one, fight for one, or kill for one. It may be your land they fight for, or you that they kill. Moreover, the effects of these experiments can often be cruel. In America, pigs were given human genes to make them bigger and less fatty. The experiment failed. The pigs became very ill and began to lose their eyesight. We would all like a better, healthier and longer life, and genetic engineering might give us this. On the other hand, it may be a dangerous experiment with nature. In the story of Frankenstein, the doctor created such a terrible and dangerous monster that he had to destroy it. 40 A. The information tells us what to do or what not to do. B. We must make sure that this tale remains a story —— and no more than that. C. This doesn’t make them cheaper, tastier, or healthier. D. The new life forms have no natural habitat or home. E. Then they feed the tomatoes to the fish. F. In this way, a new life form is created. G. They are passed on from generation to generation.
【回答】
GFCDB
知识点:七选五题型
题型:未分类
-
人的生命是从一个小小的__________________发育开始的。
问题详情:人的生命是从一个小小的__________________发育开始的。【回答】受精卵【解析】试题分析:卵细胞和精子都不能进行细胞*、分化、发育等生命活动,只有精子与卵细胞结合形成受精卵时,才标志着新生命的起点,然后种植在子宫内膜上,即怀孕开始,然后受精卵经过细胞*...
-
(2010·福建高考)入海河流三角洲的土地利用类型受河流淡水和海洋咸水的共同影响。某三角洲面积增长较快,该三...
问题详情: (2010·福建高考)入海河流三角洲的土地利用类型受河流淡水和海洋咸水的共同影响。某三角洲面积增长较快,该三角洲地区2007年土地利用类型的构成如下表所示。读表,完成11~12题。旱地林草地盐荒地滩涂其它合计占总面积比例(%)171232182110011.该三角洲地...
-
某班抽取6名同学进行体育达标测试,成绩如下:80,90,75,80,75,80.下列关于对这组数据的描述错误的...
问题详情:某班抽取6名同学进行体育达标测试,成绩如下:80,90,75,80,75,80.下列关于对这组数据的描述错误的是( )A.众数是80 B.平均数是80 C.中位数是75 D.极差是15【回答】C知识点:数据的集中趋势题型:未分类...
-
________manyAmericansbelievethere'sstillalottobedone,th...
问题详情:________manyAmericansbelievethere'sstillalottobedone,thatdoesn'tweakentheirsenseofObama'shistoricachievement. A.While B.Nowthat C.Aslongas ...
相关文章
- AfamilyinGuelph,Ontarioisspendingayearliving“in1986”...
- BEIJING,Oct.16(Friday)(Xinhua)--TheChinesegovernmentwil...
- Generally,students'innermotivationwithhighexpectationsf...
- BEIJINGOct16(Friday)(Xinhua)---TheChinesegovernmentwi...
- 完形填空 EverySundaymorning,Alicegoestovisithergrandparen...
- Angerisakindoffeeling. 36 Whenyourteachergivesyoutoom...
- Myfatherenjoysbikeriding.EversinceIwaslittle,I've...
- ItwasafreezingcoldeveninginnorthernVirginiamanyyearsago...
- "Longtimenosees"isaveryinterestingsentence.When Ifirstr...
- KeepingadiaryinEnglishisoneoftheeffectiveways 61 (imp...