The world is in danger. At one time there were 1,300 different plants, trees and flowers in Holland, but now only 860 remain(剩余). The others have been destroyed(破坏) by man. We are changing the earth, the air, the water and everything that grows and lives. We can't live without these things. If we continue doing like this, we will destroy ourselves.

    What will happen in the future? Perhaps it is more important to ask "What must we do now?" The people who will be living in the world of tomorrow are the young of today. A lot of them know that conservation(对自然环境的保护) is necessary. Many are helping to save our world. They plant trees and protect animals in forest. In a small town in the United States, a large group of volunteers cleaned the banks of their rivers. Young people may hear about conservation through a record called No One's Going to Change Our World. It was made by the Beatles, Cliff Richard and other singers. The money from it will help to protect wild animals.

Differentweather makes people feel different. It influences health, intelligence andfeelings.

InAugust, it is very hot and wet in the northern part of the United States.People there have heart trouble and other kinds of health problems during thismonth. In the Northeast and the Middle West, it is very hot at some times andvery cold at other times. People in these states have more heart trouble afterthe weather changes in February or March.

Theweather can also influence intelligence. For example, in a scientific report,IQ of a group of students was very high when a very strong wind came, but afterthe wind, their IQ was 10% below. The wind can help people have moreintelligence. Very hot weather, on the other hand, can make it lower. Studentsin many schools of the United States often get worse on exams in the hot monthsof the year（July and August）.

Weatheralso has a strong influence on people's feelings. Winter may be a bad time forthin people. They usually feel cold during these months. They might feelunhappy during cold weather. But fat people may have a hard time in hot summer.

Low air pressure may make people forgetful. Research shows that people leave more bags on buses and in shops on low-pressure days. However, at about 18℃, people become healthier and stronger. People feel best at this temperature.

Areyou feeling tired, forgetful or unhappy today? It may be the weather's problem.

Now people have more money than before, and they want to enjoy life. {#blank#}1{#/blank#} Listen! Some people are talking about their vacation plans.

 "I love sports. I'm going bike riding with my family on vacation. {#blank#}2{#/blank#}That's really great," said Mrs Lee Mr Zhao loves nature. He said. "I'm walking in the countryside or going hiking in the mountains. {#blank#}3{#/blank#}." Miss Wang wants to be more beautiful. "I'm planning to go shopping {#blank#}4{#/blank#}"Zhang Yishan is a movie actor. He has just finished his last movie. {#blank#}5{#/blank#}He said, "I like going sightseeing I am saying in Canada for a month."

 A relaxing vacation! I can't wait! 

A. I want to buy lots of beautiful clothes. 

B. Now he really wants to get some rest,

C. Many people can come to buy clothes in my shop.

D. We can exercise and enjoy lots of interesting places.

E. But a lot of people like traveling in the countryside.

F.I hope the beauty of nature can help me to forget all of my problems.

G. So people have difference ideas about how to enjoy their vacations.

If you go to the forest with friends, always stay with them. 1 you don't, you may get lost. If you really get lost, this is what you 2 do: sit down and stay where you are. Don't try to 3 your friends—let them find you by staying in one place. 

There is 4 way to help your friends or other nearby people to find you. Give them a signal（信号）by shouting or whistling,（吹口哨）three times. Stop. Then shout or whistle 5 times again. Any signal given three times is a call for 6 .

Keep up the shouting or whistling 7 three times together. When people 8 you, they will know that you are not just making noise for 9 . They will let you know that they have heard your signal. They will give two shouts, two whistles or two gun shots（枪声）. When someone gives a signal, it is 10 to a call for help. 

Our family went to the Yellow Stone National Park last summer vacation. Our son, Tom, wanted to see bears there. And what an experience it was!

When we got there, we put up our tent and went to explore（探险）. As we returned, we heard our daughter Susie cry out. And then we saw a bear go into our camp. 

Tom wanted his father to chase（追赶）him away. 

His father said, "No. It's dangerous to chase a bear. And don't let him chase you."

Susie said, "What shall we do? Maybe we should climb a tree."

Tom said, "No. We have to get him out of there. He might go to sleep in our tent."

"Maybe we could make him leave if we put some honey outside for him to eat." Susie suggested. 

Then I said, "How are you going to get the honey? It's in the tent."

We watched the bear go into the tent and heard him upset（翻倒）everything inside. 

"It's foolish for us to try to chase him away." said my husband, "Leave him alone and wait for him to come out."

We waited, but the bear stayed inside. We had to sleep in the car that night.

Do you believe in green living? Read the following blog and replies about a fun, easy and creative way to make your lifestyle greener.