2． Dictate the following words and phrases: bell, ring, go off, rush, run off, on time, give sb． a ——青夏教育精英家教网—

2． Dictate the following words and phrases: bell, ring, go off, rush, run off, on time, give sb． a ride lock, break down．【查看更多】

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

查看答案和解析>>

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.

【小题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.

【小题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

【小题4】What is the best title of this passage?

A．Future Farming

B．Genetic Engineering

C．Foods with a Difference

D．Genetically Engineered Fruits

查看答案和解析>>

阅读理解

　　Every morning in our class．Mr Smith calls the roll(点名)． He calls the names of all the students，one after another，in alphabetical order(按字母表顺序)．For example，he says,“John White．”“Present．”“Helen Williams”“Here．”“Henry Williams”“Henry's

absent today．” “Oh．yes．Henry's your brother．Where's Henry today?”

　　“He's at home，sir．”

　　“He is sick．I suppose．”

　　“Yes，sir．He has a bad cold．”

　　“I hope he feels better tomorrow．”

“Thank you，sir．”

　　“Well, let's begin the lesson．Today we have Lesson 19． First，let's open our books．

　　What's the page number?”

　　“Page 19，sir．”

　　“Thank you．First let's read a few lines aloud for pronunciation．And later, we can

have some dictation(听写)．John，you go to the blackboard and write on the blackboard

while the others write at their desks．You all like dictation，don’t you?”

　　“NO．I like reading stories and translating(翻译) them，”John says．“But dictation

is important．It teaches you the correct spelling of words and it also helps with pronunciation．”

　　“Last time，I made twenty-five mistakes in spelling．”says John.

　　“But how many words did I dictate?”

　　“Twenty-six．”

(1)

(根据所给的意思从短文中找出该词)being here or at the place(7 letters)

(2)

(根据所给的意思从短文中找出该词)away；not present(6 letters)

(3)

(根据所给的意思从短文中找出该词)take as likely，consider as true or probable(7 letters)

(4)

(根据所给的意思从短文中找出该词)a piece of black wood for writing or drawing on with chalk(10 letters)

(5)

(根据所给的意思从短文中找出该词)something done wrongly(7 letters)

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用所给词的适当形式填空。

“Let's have a ________(dictate)tomorrow．”the teacher says．