A: Morning! What can I do for you?

B: We’d like to make a trip for a weekend holiday, please.

A: There are many travel paths.    56  ?

B: We’d like to choose Jinggang Mountains.

A: It’s really worth visiting.    57  ?

B: We’re not sure. Which hotel do you think is comfortable?

A: The Holiday Home is very good. What’s more important,    58  .

B: We don’t want to live in an expensive hotel. That’s what we’ll do.

A:    59  ?

B: OK. I’ll ask my wife to fill in this form. By the way, is it all right if we pay by credit card?

A:    60  . Enjoy your weekend.

B: Thank you.

A. Will you please fill in this form? B. Where would you like to visit? C. Which path would you like to choose? D. Which hotel do you want to live in? E. it’s inexpensive. F. Sure.

 

Today there are 6.4 billion people on the earth. By the year 2050 there may be 12.5 billion . There are a lot of people to feed. We need more  and more food.

     One way to produce more food is growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic（遗传的） material. Foods from plants grown in this way are called genetically modified(改变的) foods, or GM foods.

     By changing the genetic material of a plant, it is possible to make new plants. They make plants which are strong against plant diseases. They can also help in our diseases; a kind of rice is being prepared , for example , which stops people becoming blind.

     Rich countries produce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.

      GM plants are not natural. No one knows how good or bad they are,. Making GM foods is only one way of feeding people in 2050. There are strong feelings against them, because they are unnatural. They may feed people , then hurt them or their children later. But both rich and poor countries are interested in their use, and they are not going to go away. In 2050, we may think differently about them.

1.GM foods are made by                 

 A. farmers            B. workers      C. scientists          D plants

2.What are the good things about GM foods  ?

A. They make plants strong against diseases.   B. They are unnatural.

 C. They can help in human diseases.            D  Both A and  C.

3.GM foods        .

A. are a quick way to produce food    B. grow in the wild 

C. are safe                           D are grown only in rich countries

4.Why do some people not like GM foods?

A. They are not useful.       B. They are not helpful.

C. They are not natural.      D  They are not cheap.

5.From the passage we know that       .

A. GM foods will disappear one day in the future 

B. GM foods will not disappear in the future

C. People will not be interested in GM foods.

D. People will have to stop using GM foods

 

In the past, man did not have to think about the protection of his environment. There were not many people on earth, and natural resources seemed to be unlimited.
Today, things are different. The world has become too crowded. We are using up our natural resources too quickly, and at the same time we are polluting our environment with dangerous chemicals. If we continue like this, human life on earth will not survive.
Everyone realizes today that if too many fish are taken from the sea, there will soon be none left. Yet, with modern fishing methods, more and more fish are caught. We know that if too many trees are cut down, forests will disappear and nothing will grow on the land. Yet, we continue to use bigger and more powerful machines to cut down more and more trees.
We realize that if rivers are polluted with waste products from factories, we will die. However, in most countries waste products are still put into rivers or into the sea, and there are few laws to stop this.
We know, too, that if the population of the world continues to rise at the present rate, in a few years, there will not be enough food.
What can we do to solve these problems?
If we eat more vegetables and less meat, we will easily get more food. Land that is used to grow crops can feed five times more people than land where animals are kept.
The world population will not rise so quickly if people use modern methods of birth control.
Finally, if we educate people to think about the problems, we shall have a better and cleaner living place in the future.

The importance of protecting the environment
Problems	◆ More fish being caught. ◆ More 【小题1】    being cut down. ◆ More waste products being put into rivers. ◆ More【小题2】    being born.
Causes	◆ The world is becoming too 【小题3】    . ◆ Modern methods make the situation worse .
Result	We human beings will not survive on the earth.
Solutions	◆ Eat more vegetables and less meat so that more food will be available  for everyone. ◆ Use modern methods of 【小题4】    control so that the population will not grow too fast. ◆ Educate people so that the 【小题5】   will be better and cleaner.