1. We should protect e_______ animals.

 2. I want to eat something because I am k_______ of hungry.

 3. How do you feel a________ pollution?

4. The cake t_________ delicious. Would you pass me one more?

5. Many advertisements are aimed specifically a______ teenagers, so you have to be careful.

6. I need a pair of warm trousers to keep o________ cold.

7. Money is a_______ in some situations.

8. You can send flowers a_______ of time for Mother’s birthday.

9. It’s very important to choose a p_______ time to visit friends.

10. The map m_______ me, so I went the wrong way.

1.1. We should protect e_______ animals.

2. Money is a_______ in some situations.

3. It’s very important to choose a p_______ time to visit friends.

4.He is an o_________ student. He has been abroad for a long time.

5.What is his p_________ in doing this?

April 22 is Earth Day. Everyone on earth should care about and protect the earth! The earth has warmed by about 1 °F over the past 100 years, but why and how? Well, scientists are not quite sure. Maybe the earth gets warmer and warmer on its own. __60__   

   First, greenhouse effect (效应) is a very important reason for the change of the earth. People give out too much energy into the air every year. It makes the earth warmer. __61__Sometimes it becomes too hot and sometimes too cold. Sometimes there is too much rain and sometimes too little. The change of the climate makes the earth warmer. In turn, the warmth of the earth changes the climate, too.
    When the earth becomes warmer, there may be more rain and a rise in sea level. __62___ On a Pacific island, 100 people have to move to higher ground because the sea is rising. These people can no longer live on the coast. Before that, two islands without people went underwater in 1999. Scientists say that the seas can rise by nearly one metre by 2100.
    People can affect the earth's air, land and water. As for us, we can do many things to protect the earth. __63___ We can tell more people about protecting the earth.

April 22 is Earth Day. Everyone on earth should care about and protect the earth! The earth has warmed by about 1 °F over the past 100 years, but why and how? Well, scientists are not quite sure. Maybe the earth gets warmer and warmer on its own. __60__   

   First, greenhouse effect (效应) is a very important reason for the change of the earth. People give out too much energy into the air every year. It makes the earth warmer. __61__Sometimes it becomes too hot and sometimes too cold. Sometimes there is too much rain and sometimes too little. The change of the climate makes the earth warmer. In turn, the warmth of the earth changes the climate, too.
    When the earth becomes warmer, there may be more rain and a rise in sea level. __62___ On a Pacific island, 100 people have to move to higher ground because the sea is rising. These people can no longer live on the coast. Before that, two islands without people went underwater in 1999. Scientists say that the seas can rise by nearly one metre by 2100.
    People can affect the earth's air, land and water. As for us, we can do many things to protect the earth. __63___ We can tell more people about protecting the earth.

Dolphins (海豚) are not fish, but warm-blooded animals. They live in groups, and speak to each other in their own language. In this they are like other animals, such as bees and birds. But dolphins are very different from almost all land animals. Their brain is nearly the same size as our own, and they live a long time - at least twenty or thirty years.

Like some animals, dolpins use sound to help them find their way around. They also make these sounds to talk to each other and to help them find food. We now know they do not use their ears to receive these sounds, but the lower part of the mouth, called the jaw.

Strangely, dolphins seem to like man, and for thousands of years there have been stories about the dolphin and its friendship with people.

There is a story about sailors in the 19th century. In a dangerous part of the sea off the coast of New Zealand, they learnt to look for a dolphin called Jack. From 1871 to 1903 Jack met every boat in the area and showed it the way. Then in 1903 a passenger on a boat called The penguin shot and wounded Jack. He recovered and for nine years more continued to guide all ships through the area－except for The Penguin.

Today, some people continue to kill dolphins, but many countries of the world now protect them and in these places it is against the law to kill them.

1. Dolphins are different from many other animals in that they _____.

A. are warm-blooded B. have large brains

C. live in groups e D. have their own languag

2.Which of the following does the dolphin use to help it find its way around?

A. Its nose B. Its mouth

C. Its eyes. D. Its ears..

3.Why did the sailors off the coast of New Zealand look for Jack?

A. He was seriously wounded.

B. They enjoyed playing with him.

C. They wanted his help

D. He was lonely and liked to be with people.

4.By telling the story of Jack the writer wanted to show that _____.

A. Jack is different from other dolphins

B. people are cruel to animals

C. dolphins are friendly and clever

D. dolphins should be protected by law