首页
登录
职称英语
[originaltext] Until recently, a tomato was just a tomato.[30]But now scient
[originaltext] Until recently, a tomato was just a tomato.[30]But now scient
游客
2024-02-11
46
管理
问题
Until recently, a tomato was just a tomato.[30]But now scientists have begun to change the genes of plants in biology laboratories. So now it is not as easy to know whether tomatoes you eat are pure tomatoes.[30]That is true with many other vegetables and fruits people could find on the market.
Genetic engineering is the process of taking genes from one plant or animal and putting them into another plant or animal. Scientists use the process to increase the nutrients a food contains. However, this new genetic engineering technology has raised a lot of questions among people.
The United States Food and Drug Administration(FDA)is responsible for deciding how foods must be described when they are sold to the customers. The FDA says people who buy human foods produced by new kinds of plants must be told if there are any safety problems. It also says people must be told what nutrients the foods contain.
There are, however, times when more information about a new food product would be helpful to certain people. Some foods are not a safety threat, but do bring effects to people in unusual ways. For example, after eating the food, they may develop red spots on their skin in a few hours, or have trouble in breathing or have a sick stomach.
30. In what way might fruits and vegetables nowadays be different from those before?
31. What is the FDA responsible for deciding?
32. What may happen to people after eating certain food?
选项
A、They become more mature in a shorter time.
B、They might be of different genes from their ancestors.
C、They are much more nutritious with better taste.
D、They might take a totally different look than before.
答案
B
解析
短文开篇即介绍现在的西红柿未必是以前人们所食用的西红柿.而很可能是实验室的转基因产品;接着说市面上许多蔬菜水果的情况也是如此。B是对原文change the genes of plants的同义改写,故选B。
转载请注明原文地址:https://tihaiku.com/zcyy/3441924.html
相关试题推荐
[originaltext]Afewmonthsago,ateamofinterviewersweresenttoschools
[originaltext]Anewplanforgettingchildrentoandfromschoolisbeings
[originaltext]Goodafternoon,andwelcomeonceagainto"TheWorldWeNever
[originaltext]Goodafternoon,andwelcomeonceagainto"TheWorldWeNever
[originaltext]Goodafternoon,andwelcomeonceagainto"TheWorldWeNever
[originaltext]M:Goodmorning.You’reMs.Clay,right?Dositdown,please.Now
[originaltext]M:Goodmorning.You’reMs.Clay,right?Dositdown,please.Now
[originaltext]M:Goodmorning.You’reMs.Clay,right?Dositdown,please.Now
[originaltext]M:I’vebeenassignedtocoverthegovernment’sspeechtoday.Wha
[originaltext]M:I’vebeenassignedtocoverthegovernment’sspeechtoday.Wha
随机试题
Formostpurposes,newspaperadvertisementsaretheprimary【C1】______ofjob
[originaltext]AmotherinTamilNadu,India,recentlyhadaquestionforou
Iremembermeetinghimoneeveningwithhispushcart.Ihadmanagedtosella
氧化亚氮需要多少个大气压才能压缩成液态保存于高压钢瓶供临床使用A.40 B.2
根据《证券公司分类监管规定》,证券公司分类评价( )进行一次。A.每年 B.
A.行血脉 B.托疮毒 C.润肠燥 D.补肾阴 E.敛汗菟丝子除能补肾固
酸量法测定阿司匹林含量的最佳方法是()A.差减法 B.剩余滴定法 C
中国史书中的“白衣大食”是指阿拉伯的( )。A.倭马亚王朝 B.阿拔斯王朝
地方政府为筹集资金建设某项具体工程而发行的债券是()。 A.普通债券B.专
下列关于栓剂的质量要求说法正确的是A.药物与基质应混合均匀 B.栓剂外形应完整
最新回复
(
0
)