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

动词填空 用括号内所给动词的适当形式填空。（本大题共8分，每小题1分）

1.--- What’s the noise? --- Oh, the students _________ ( plan ) their autumn trip excitedly.

2. The radio says that the rain ________________ ( stop) in a few hours.

3.Not only the twins but also Tom often____________(mix) the sugar with the coffee together.

4. How much time do you usually spend _____________ (do) some reading every weekend?

5._____________ (take) care of his wife, he gave up the chance to go abroad.

6.--- Why didn’t you come and open the door for me, dear?

--- Oh, sorry, I _______________(cook) in the kitchen. I didn’t hear you.

7.--_______ your father ___________ (make) the weather report today?

--- Yes, he did. He says it’s important for us all. He must do it well.

8.There will be less space for wildlife if we ____________ (not protect) the wetlands.

阅读短文，从方框中选择适当的句子还原到短文中，使短文意思完整．

Scientists think that many or most animals can't see colors．1. ．To find out if dogs could see colors，scientists gave dogs food every time they played certain piece of music．  2. only when they heard this piece of music．They did not get ready to eat when they heard other pieces of music．

Then the scientists gave the dogs food every time they showed them a certain color．The dogs got ready to eat when they saw thi s color． 3. ．Again the dogs got ready to eat．The colors were al l the same to them．  4. ，however．For example if  we put food in a red box and do this every day．A monkey wiIi always go to the red box to get the food．  5. if we then put food in a blue box．

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?