We have always been interested in the moon. 2000 years ago people already knew it moved around the earth and where it would be in the sky at different times of the year. At that time, everything about the moon was learned by watching it carefully in the sky.

When scientists could use telescopes(望远镜) to study the moon more closely, their ideas began to change. They could see the moon was made of rocks. Most scientists thought moon rocks would be different from those on Earth. This was because they believed the moon had once been a planet that had been caught in the earth’s gravity millions of years earlier.

In 1969 moon rocks were finally brought to the earth and studied. Much to their surprise, scientists found that, except for water, the moon and the earth were made of the same things. Once again new ideas were needed for this new information.

After years of study, most scientists now think that the moon was once part of Earth. They believe very early in its history, maybe 4 million years ago, something about the size of Mars hit Earth. This sent billions of rocks into space around our planet. These rocks slowly joined together and after many years became the moon.

In the future, even though our ideas about the moon may change again, we will still be interested in it.

1.From the passage we know the moon was made of_____________.

2.In the passage the writer wants to tell us ___________________.

3.Before 1969 most scientists thought the moon was ______________.

4.From this passage we can learn that ___________________.

The 2010 Winter Olympic Games will take place in Vancouver and Whistler(惠斯勒) from February 12 to 28. As the world’s 41______ athletes will compete there, Canada is preparing for it well.
It will be broadcasted(播出) in Canada’s two 42______languages——English and French. Billions of television viewers worldwide will 43______ the opening ceremony of the 2010 Winter Olympic Games. Athletes from more than 80 44______ will compete in 86 medal events over 17 days. Then the Paralympics(残奥会) will 45______ from March 12 to 21. Canada has 46______ millions of dollars preparing. Thousands of spectators will visit the country. Canada will be 47_____ it all.
The building of Olympic gyms began in 2005. Opening and closing ceremonies will be held indoors, at BC Place Stadium. It’ll 48______55,000 seats. Some competitions, 49______ ski, and bobsled, will take place in Whistler. It’s a ski village. During the Games, roads will be closed. More than 15,000 policemen will work to 50______ the peace throughout the Games.
The United States is the only country to host the Winter Games four times. Team USA hopes 2010 will be a golden year.

Parts of Africa are covered by a dark cloud. But this is no rain cloud. It is a living cloud made of billions of locusts (蝗虫) and they are eating everything in their path.
And now in order to fight against this disaster, a radio station in Senegal, West Africa, is offering listeners 5 kilograms of rice if they can catch and kill 50 kilograms of locusts. “We think this idea will get more people to take part in the fight against the locusts,” said Abdoulaye Ba, from Sud-Fm, a radio station in one of Senegal’s worst affected area.
This is West Africa’s biggest locust disaster in 15 years. Now it is moving east and it leads to the loss of crops. When they move, they have babies, so their number is getting bigger. and will soon threaten (威胁) Sudan in the northeast of Africa. Some say it may reach Asia.
Experts say many people in the areas will go hungry because of this disaster. What’s worse, governments in the areas don’t have enough things to fight the locusts.
Although leaders of 12 countries have agreed on a plan, it is not enough. ‘We are now treating 6,000 hectares (公顷) per day with pesticide (杀虫剂), but we need to treat 20,000 hectares per day in order to have any hope of controlling this disaster,’ said Mohamed Abdallahi Ould Babah, leader of locust control(控制) in Mauritania.
【小题1】What does“dark cloud”mean in the first para­graph, the writer of the article ___________.

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【小题1】According to the advertisements, the four books are all intended for ______.

阅读下面短文，根据短文内容。补全表格中所缺的信息。

Many kinds of birds live in the United States, but the number of the birds is becoming smaller every year. One of the leading reasons is the growing number of pet cats. By keeping your pet cats in your home, you can help give birds a better possible chance to live.

Of the 90 million pet cats in this country, about two—thirds are allowed to go outside. It is said that these cats kill hundreds of millions of birds each year, as well as billions of small animals such as rabbits and field mice.

They can also bring illness to the animals that live I n people's yard(院子), further weakening the health of the natural populations.

Allowing pet cats to go outside is not just bad for birds and wildlife, it's also bad for the cats themselves. Outdoor cats can get sick very easily. They are in danger from traffic and attacks(攻击)from other animals. In fact, outdoor cats usually don't live past the age of five, while indoor cats often live to be 17 or older.

Keep your pet cat inside! If you raise a young cat, it's your duty to let it play inside.