首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
For the past 10, 000 years humans have influenced the plants they use at first unknowingly, later by design. Today’s crops have
For the past 10, 000 years humans have influenced the plants they use at first unknowingly, later by design. Today’s crops have
admin
2019-07-08
20
问题
For the past 10, 000 years humans have influenced the plants they use at first unknowingly, later by design. Today’s crops have been created by a process of selection and classical breeding. More specific improvements in breeding will be possible in future.
Science has cracked the genetic information code. Green gene technology is an effective tool in crop breeding, enabling us to develop new crops even more rapidly and specifically.【F1】
We can make them more efficient, optimizing their contents and valuable substances to suit the wishes and requirements of customers and the processing industry.
Their metabolism can be individually modified, making them produce starch, protein and fats with special properties. Through gene transfer plants can be made more resistant to viruses, bacteria, harmful fungi and insect pests.
【F2】
Genetically modified plants can be cultivated to possess improved stress behavior, with the result that they absorb water better in dry locations and can make more efficient use of soil nutrients.
We can also optimize weed control. To do so, we make crops tolerant to environmentally sound and easily degradable herbicides. This is not as simple as it sounds. But we have been successful: Innovator has been on the Canadian market since 1995. This is the first oilseed rape variety to contain the glufosinate tolerance gene, facilitating the use of AgrEvo’ s broad-spectrum herbicide liberty.
We are committed to green gene technology, with which we aim to make crop breeding even more efficient and environmentally friendly.【F3】
Before being brought on to the market these genetically modified plants are researched and tested for years until the questions posed regarding their safety have been answered.
【F4】
This is a great opportunity for us to realize our vision: the use of faster methods to breed varieties which will continue to provide us with sufficient food and raw materials in future.
Our fossil reserves will soon be exhausted. Experts estimate that we only have e-nough oil for another 43 years and natural gas for less than 60.
【F5】
This means we must rethink and act accordingly, using new crop varieties to step up the move to reusable sources of raw materials and energy.
In other words, green gene technology is the key technology for sustainable agriculture.
【F1】
选项
答案
我们可以使这些品种更高产,同时优化其所含成分及有效物质,以满足客户及加工业的期望和要求。
解析
全文共分五段。第一段主要讲如今的农作物都经过了精挑细选和规范培育的过程才得以产生。将来,育种技术还会有针对性的改进。第二、三段介绍了靠绿色基因技术培育出的农作物的优势。第四、五段主要介绍了人们进行绿色基因技术研究的目的和复杂过程,并指出要利用新的作物品种开发出可重复利用的原料和能源。
转载请注明原文地址:https://kaotiyun.com/show/iG9Z777K
0
考研英语一
相关试题推荐
Beforetheglobalfinancialcrisis,emergingeconomieslikeChinaaspiredto"decouple"themselvesfromtherichworld,hopingt
Wealreadyknowthatgenderbalancedseniorteamsarenotonlybetterforbusiness,theeconomyandsociety,butalsocrucialto
Humansarestartlinglybadatdetectingfraud.Evenwhenwe’reonthelookoutforsignsofdeception,studiesshow,ouraccuracy
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroughidentification.Childrenidentify【B1】______aparen
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroughidentification.Childrenidentify【B1】______aparen
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroughidentification.Childrenidentify【B1】______aparen
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroughidentification.Childrenidentify【B1】______aparen
Historically,humansgetseriousaboutavoidingdisastersonlyafteronehasjuststruckthem.【B1】______thatlogic,2006shoul
ItisacherishedBrusselsmaximthattheEuropeanUniontakesitsgreatestleapsforwardsinacrisis—andthenonlyafterseve
随机试题
穿戴无菌手术衣及手套后,应将双手置于
含有马钱子的中成药是
某市2001年商品房价格平均每月递增0.5%,则全年总计上涨6.0%.
因特网上的服务都是基于某一种协议,邮件传输服务是基于()。
下述各项中属于单位工程概算中建筑安装工程概算的是()概算。
某生产型外商投资企业为增值税一般纳税人。2018年,该企业自行核算主营业务收入为2700万元,其他业务收入200万元,投资收益45万元;扣除项目金额合计2865万元,实现利润总额80万元。经税务师审核,发现下列情况:⑴“管理费用”账户列支100万元,其中
软件调试的目的是()。
Nowadaysmanyscientistsdependonradiocarbonfordatingage-oldobjects.Radiocarbonisreliableindatinganobjectbackto
行路难,但人生之路谁都要走。有的人在赶路,心急切切,步匆匆,眼中只有目标却忽略了风景。可路迢迢不知哪儿是终点。有的人如游客,不急不慌,走走停停,看花开花落,看云卷云舒,有时也在风中走,雨中行,心却像张开的网,放过焦躁苦恼。人生之路谁不走?只是走
Wecouldn’thavepassedthefinalexamination______yourhelp.
最新回复
(
0
)