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There ______ life on the earth for millions of years．

A．has    B．has been    C．have    D．have been

The world itself is becoming much smaller by using modern traffic and modern communication. Life today is much easier than it was hundreds of years ago, but it has brought new problems. One of the biggest problems is pollution.
To pollute means to make things unfit or unclean to use. Pollution comes in many ways. We see it, smell it, drink it and even eat it. Pollution is beginning to threaten (威脅) our health, our happiness and our life.
Man has been polluting the earth from the time he first made fire, washed his clothes in the river and threw his waste on the ground. When land was used up or water became dirty, men moved on to another place. At first, the problem was not so serious because there was plenty of clean air, land and water. There weren’t so many people then and their wants fewer. All the dirty things could be absorbed(吸收) by nature and soon covered over. But this is no longer true. The increase of pollution and the development of industry(工業) have changed that. Man is slowly poisoning(毒害)not only his environment but also himself.
Through the use of poison, man has polluted the land, killing the animals. By putting dirty water and chemicals into rivers and lakes we have polluted our drinking water, killing the fish.
Our increasing population is part of the problem. More people, more waste.
Where is this all to end? Are we turning the world into a big rubbish dump(堆存處)，or is there any hope that we can get rid of (擺脫，除去) the pollution? Luckily, millions of people have been warned of the danger of pollution. Large numbers of people are now working hard to bring pollution under control.
The earth is our home. We must take care of it. This means keeping the land, air and water clean. And we must take care of the rise in pollution at the same time.
【小題1】Which of the following is NOT true according to the passage?

Scientists think that there has been life for__31_ of years. However we haven’t found life on other planets _32_ . The earth is a planet and it _33__ around the sun. Seven other planets also go _34_ the sun. The sun and its planets are __35  the solar system. The solar system is a small part of our galaxy.

Scientists __36_ lots of spacecraft to look at other planets in the solar system, and some spacecraft have gone __37_ the solar system. However, no one __38_ any life in space yet.

But why has no one from other planets sent us a message ? Have they tried to send _39_ to us ? _40_so many stars in the universe, are we alone, or is there life out there in space ? We don’t know.

On June 6^th, 2012 Tiangong-1 welcomed its first guests, the Shenzhou Ⅸ manned spacecraft(載人飛船). The Shenzhou Ⅸ has two male astronauts and one female astronaut. At that time, Liu Yang, a thirty-three year-old woman, became the first Chinese woman in space.

Joining the People’s Liberation Army (PLA) Air Force in 1997, Liu Yang became an experienced pilot after flying safely for 1,680 hours. In 2010, she became an astronaut because of her good job.

“When I was a pilot, I flew in the sky. Now that I am an astronaut, I will fly in space. This will be a much higher and farther flight. I always couldn’t help wondering: What would the Earth look like from outer space?” Liu said.

In June 2012, Liu took Shenzhou Ⅸ to the space as China’s first female astronaut. “I have full confidence,” Liu said before the task. “There are many foreign female astronauts that have been into space. Men and women have their own advantages in carrying out space tasks. They can encourage each other and better complete their task.

However, the difficulty of her training has not affected her life’s pleasure. “I love children and I love life. I love reading, especially novels and history books. I am also a great cook. To be with my family is one kind of happiness, but to fly is another kind that people can’t experience.”

“I am grateful to the motherland and the people. I feel honoured to fly into space on behalf of(代表) millions of female Chinese citizens. ” Liu said after coming back to the Earth safely.

1.Liu Yang worked as an astronaut when she was ________ years old.

A．18               B．33               C．31               D．25

2.From the passage, we know Liu Yang is very________.

A．quiet             B．confident          C．beautiful          D．safe

3.The main idea of the fifth paragraph________.

A．Liu Yang is a good wife and mother          B．Liu Yang enjoy reading novels and history books

C．Liu Yang loves her job as well as her family    D．Liu Yang has to work hard every day

4.Which of the following is NOT true according to the passage?

A．There were three astronauts in the Shenzhou Ⅸ manned spacecraft

B．Liu Yang had been a pilot before becoming an astronaut.

C．Liu Yang was the first Chinese woman astronaut who had been into space.

D．Liu Yang thinks she can do better than the male astronauts in the space.

5.The best title of the passage is _______.

A．The Shenzhou Ⅸ Manned Spacecraft       B．The First Chinese Female Astronaut

C．Love Work and Family                    D．How to Achieve Your Dream?