题目列表(包括答案和解析)
Sugar—free beets(甜菜)that still taste sweet, tastier tomatoes and brighter-colored fruits and vegetables that stay ripe(熟的)longer are all foods that are being grown now. How can they
carry traits, such as being tastier, brighter, and riper? They are genetically engineered.
Genetic engineering(基因工程)is like making a change in a recipe. For example, when you make cakes, you mix together all of the usual ingredients. If you add an extra ingredient, like salt, the cakes will taste differently.
Genes are ingredients in the recipe for life. They carry the traits of living things. Your genes dictate what color hair and eyes you’ll have, how tall you’ll be, as well as many other traits. Genes carry traits for plants, too. By adding genes to a plant, you can sometimes create new traits. For example, adding a certain gene to a potato plant can make the potato plant distasteful to bugs(虫子). This makes some farmers happy because they don’t have to use chemicals to keep bugs away from their plants.
It sounds great, but some people are opposed to the idea of food that is genetically engineered. Ronnie Cummins, from the Campaign for Food Safety, is against it. He says that one of the major concerns is allergies(过敏). Supermarkets don’t always label foods that are genetically engineered. A customer could unknowingly buy food that has an added gene from another plant that he or she is allergic to. It could be dangerous.
Gary Burton from Monsanto, a seed(种子)company that engineers food, disagrees. He says his company tests for allergies. Burton believes that genetic engineering is a valuable tool for making better food. The technology can help farmers use less insecticide(杀虫剂)and grow healthier crops. Burton thinks there are many advantages.
But Cummins says that we just don’t know what will happen in the future if we keep adding genes to foods. We could mistakenly create a monster.
People have different opinions about genetic engineering. One side supports it and thinks it will only help us. The other side is opposed to playing with nature and fears health risks. Which side do you think is right?
【小题1】What could be a good thing about food that is genetically engineered?
A.It’s more expensive. |
B.It could taste different. |
C.It requires less insecticide. |
D.It’s not labeled in the supermarket. |
A.People from seed companies. |
B.Farmers who use engineered seeds. |
C.People from the Campaign for Food Safety. |
D.Scientists who create genetically engineered food. |
A.growing genetic foods will make farmers richer |
B.people will eat more genetic foods in the future |
C.using fewer chemicals could make the food tastier |
D.there could be unknown dangers about genetic foods |
A.Future Farming |
B.Genetic Engineering |
C.Foods with a Difference |
D.Genetically Engineered Fruits |
Sugar—free beets(甜菜)that still taste sweet, tastier tomatoes and brighter-colored fruits and vegetables that stay ripe(熟的)longer are all foods that are being grown now. How can they
carry traits, such as being tastier, brighter, and riper? They are genetically engineered.
Genetic engineering(基因工程)is like making a change in a recipe. For example, when you make cakes, you mix together all of the usual ingredients. If you add an extra ingredient, like salt, the cakes will taste differently.
Genes are ingredients in the recipe for life. They carry the traits of living things. Your genes dictate what color hair and eyes you’ll have, how tall you’ll be, as well as many other traits. Genes carry traits for plants, too. By adding genes to a plant, you can sometimes create new traits. For example, adding a certain gene to a potato plant can make the potato plant distasteful to bugs(虫子). This makes some farmers happy because they don’t have to use chemicals to keep bugs away from their plants.
It sounds great, but some people are opposed to the idea of food that is genetically engineered. Ronnie Cummins, from the Campaign for Food Safety, is against it. He says that one of the major concerns is allergies(过敏). Supermarkets don’t always label foods that are genetically engineered. A customer could unknowingly buy food that has an added gene from another plant that he or she is allergic to. It could be dangerous.
Gary Burton from Monsanto, a seed(种子)company that engineers food, disagrees. He says his company tests for allergies. Burton believes that genetic engineering is a valuable tool for making better food. The technology can help farmers use less insecticide(杀虫剂)and grow healthier crops. Burton thinks there are many advantages.
But Cummins says that we just don’t know what will happen in the future if we keep adding genes to foods. We could mistakenly create a monster.
People have different opinions about genetic engineering. One side supports it and thinks it will only help us. The other side is opposed to playing with nature and fears health risks. Which side do you think is right?
1.What could be a good thing about food that is genetically engineered?
A.It’s more expensive.
B.It could taste different.
C.It requires less insecticide.
D.It’s not labeled in the supermarket.
2.In general, who does not support the idea of genetic food?
A.People from seed companies.
B.Farmers who use engineered seeds.
C.People from the Campaign for Food Safety.
D.Scientists who create genetically engineered food.
3.It can be inferred that .
A.growing genetic foods will make farmers richer
B.people will eat more genetic foods in the future
C.using fewer chemicals could make the food tastier
D.there could be unknown dangers about genetic foods
4.What is the best title of this passage?
A.Future Farming
B.Genetic Engineering
C.Foods with a Difference
D.Genetically Engineered Fruits
Gloria is a famous hostess(女主持人)of a TV station.When she was 15,she happened to walk into a bookstore in her hometown and began looking at the books on the shelves.(A)The man behind the counter, John Smith, asked,“"Would you like a job in the bookstore?”She needed to start saving for(B)_______,so she said yes.
Gloria worked after school and during summer vacations,and the job helped pay for her first year of college.During college she would do many other jobs; she served coffee in the student union,was a hotel cleaner and even made maps for the Forest Service.But selling books was one of the most satisfying jobs.
One day a woman came into the bookstore and asked Gloria for books on cancer.The woman seemed(C)anxious.Gloria showed her everything they had and found other books they could order.The woman left the store less worried,and Gloria has always remembered the pride(D)she felt in having helped her customer(顾客).
Years later,as a television hostess,Gloria heard about a child who was born with problems with his fingers and hand.His family was so(E)______that they could not afford(花费得起)an operation,and the boy lived in shame,hiding his hand in his pocket all the time.
Gloria persuaded(说服)her boss to agree to let her do the story.After the story was broadcast, some doctors called,offering to(F)carry out the operation for free.
Gloria visited the boy in the hospital after the operation.The first thing he did was to hold up his repaired hand end say,“Thank you.”What a sweet sense of satisfaction Gloria felt!
At Smith’s bookstore,Gloria always realized she was working for the customers, not the store.Today it’s the same.The TV station pays her, but she feels that she should work for the people who watch the programmes,and that(G)她应该帮助他们更好地理解这个世界.
1.将画线部分(A)改写为:
The man behind the counter, John Smith, asked ______ ______ like a job in the bookstore.
2.在(B)和(E)的空白处分别填入一个适当的单词:______;______
3.写出画线部分(C)和(F)的同义或近义词语:______; ______
4.句中画线部分(D)在文中所指代的是:______
5.将画线部分(G)译成英语:____________________________________
A.It’s more expensive. |
B.It could taste different. |
C.It requires less insecticide. |
D.It’s not labeled in the supermarket. |
A.People from seed companies. |
B.Farmers who use engineered seeds. |
C.People from the Campaign for Food Safety. |
D.Scientists who create genetically engineered food. |
A.growing genetic foods will make farmers richer |
B.people will eat more genetic foods in the future |
C.using fewer chemicals could make the food tastier |
D.there could be unknown dangers about genetic foods |
A.Future Farming |
B.Genetic Engineering |
C.Foods with a Difference |
D.Genetically Engineered Fruits |
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