Directions: Read the following text and choose the most suitable heading from A – F for each paragraph. There is one extra heading which you do not need.

76._________________

Astronomers estimate that there are about l,100 asteroids--or space rocks--with the potential to cause a planet-wide disaster in a collision with Earth．And since large asteroids have collided with Earth many times in the past，scientists say it is certain that Earth will be hit again．It is only a question of when． 

77. _________________

The asteroid that ended the age of the dinosaurs hit the Earth 65 million years ago．It was at least six miles(10 kilometers)wide．But smaller asteroids can also devastate （毁坏）the earth．Scientists estimate that a collision with an asteroid even one—tenth this size would kill at least 25 per cent of Earth’s population．Less than a hundred years ago，for example，an asteroid only 330 feet(100 meters)wide exploded in Siberia．It completely destroyed half a million acres of forest．

78．_________________

Asteroids come from a belt of tens of thousands of space rocks in orbit around the sun．They normally travel between Mars and Jupiter，but some smaller rocks are affected by the gravitational pull of Mars，Jupiter or Saturn and their orbits are stretched．Sometimes this change puts them on a path that crosses Earth’s orbit．This sets up the possibility of collision with Earth．

79．_________________

In l986，a potentially dangerous asteroid missed Earth by only six hours．Scientists only found out about the danger after it had passed．Many more asteroids have collided with Earth over the years．We can still see their marks today — large craters in the ground．

80．_________________

NOW there is a new--found seriousness about asteroid strikes．Astronomers are engaged in a painstaking search for all asteroids that threaten Earth．And the United States has a project called NEAR that involves orbiting and studying the asteroid Eros，the second largest asteroid near Earth．Studying the composition of the asteroid provides important information hat may allow an asteroid to be exploded or knocked of course to prevent it from colliding with Earth．

Directions: Read the following text and choose the most suitable heading from A – F for each paragraph. There is one extra heading which you do not need.

76._________________

       Astronomers estimate that there are about l,100 asteroids--or space rocks--with the potential to cause a planet-wide disaster in a collision with Earth．And since large asteroids have collided with Earth many times in the past，scientists say it is certain that Earth will be hit again．It is only a question of when． 

77. _________________

       The asteroid that ended the age of the dinosaurs hit the Earth 65 million years ago．It was at least six miles(10 kilometers)wide．But smaller asteroids can also devastate （毁坏）the earth．Scientists estimate that a collision with an asteroid even one—tenth this size would kill at least 25 per cent of Earth’s population．Less than a hundred years ago，for example，an asteroid only 330 feet(100 meters)wide exploded in Siberia．It completely destroyed half a million acres of forest．

78．_________________

    Asteroids come from a belt of tens of thousands of space rocks in orbit around the sun．They normally travel between Mars and Jupiter，but some smaller rocks are affected by the gravitational pull of Mars，Jupiter or Saturn and their orbits are stretched．Sometimes this change puts them on a path that crosses Earth’s orbit．This sets up the possibility of collision with Earth．

79．_________________

    In l986，a potentially dangerous asteroid missed Earth by only six hours．Scientists only found out about the danger after it had passed．Many more asteroids have collided with Earth over the years．We can still see their marks today — large craters in the ground．

80．_________________

    NOW there is a new--found seriousness about asteroid strikes．Astronomers are engaged in a painstaking search for all asteroids that threaten Earth．And the United States has a project called NEAR that involves orbiting and studying the asteroid Eros，the second largest asteroid near Earth．Studying the composition of the asteroid provides important information hat may allow an asteroid to be exploded or knocked of course to prevent it from colliding with Earth．

76._________________

       Astronomers estimate that there are about l,100 asteroids--or space rocks--with the potential to cause a planet-wide disaster in a collision with Earth．And since large asteroids have collided with Earth many times in the past，scientists say it is certain that Earth will be hit again．It is only a question of when． 

77. _________________

       The asteroid that ended the age of the dinosaurs hit the Earth 65 million years ago．It was at least six miles(10 kilometers)wide．But smaller asteroids can also devastate （毁坏）the earth．Scientists estimate that a collision with an asteroid even one—tenth this size would kill at least 25 per cent of Earth’s population．Less than a hundred years ago，for example，an asteroid only 330 feet(100 meters)wide exploded in Siberia．It completely destroyed half a million acres of forest．

78．_________________

    Asteroids come from a belt of tens of thousands of space rocks in orbit around the sun．They normally travel between Mars and Jupiter，but some smaller rocks are affected by the gravitational pull of Mars，Jupiter or Saturn and their orbits are stretched．Sometimes this change puts them on a path that crosses Earth’s orbit．This sets up the possibility of collision with Earth．

83．_________________

    In l986，a potentially dangerous asteroid missed Earth by only six hours．Scientists only found out about the danger after it had passed．Many more asteroids have collided with Earth over the years．We can still see their marks today — large craters in the ground．

79．_________________

    NOW there is a new--found seriousness about asteroid strikes．Astronomers are engaged in a painstaking search for all asteroids that threaten Earth．And the United States has a project called NEAR that involves orbiting and studying the asteroid Eros，the second largest asteroid near Earth．Studying the composition of the asteroid provides important information hat may allow an asteroid to be exploded or knocked of course to prevent it from colliding with Earth．

Mauritius, with its full name the Republic of Mauritius, an island country, lies 1,200 miles off the southeastern coast of Africa, and just east of Madagascar, another African island country, which is larger by far than Mauritius. It covers 788 square miles and has a population of 1,00,000, about 750.000 Indians, 300,000 Chinese and 20,000 Whites included. They are living together peacefully, although they share such different beliefs as Hindu, Roman Catholic, Muslim and so on.

The country can be divided into many parts with different climate all because of its peculiar terrains (地形). In the center there are volcanoes several thousand feet high, and 90% of its arable land is covered with sugarcane.

There are no people living on the island before the Dutch landed on it in 1638. The Dutch abandoned it in 1710, and five years later, the French came and succeeded in planting sugarcane there. It was conquered by Britain in 1818. As a result, its official language is English. The main big cities are Beau Bassin and Mahebourg, with Port Louis as its capital.

Mauritius has many rare and unique animals, such as the snakes, parrots and lizards. The giraffe is a type of animal with a very long neck and legs and yellow skin with dark spots. It is the tallest of all living animals.

Mauritius was extremely poor when it declared its independence in 1968. In the past ten years, obvious economic prosperity has shown itself in this island country. Nowadays its business, culture and tourism are developing rapidly. Every year, thousands of millions of people rush there to enjoy the silver sand beach and song and dance performances with native national characters.

69．Who succeeded in planting sugarcane?

       A．The Dutch                                          B．Only the French

       C．The Dutch and the French                    D．The French and British people

70．The right order that shows the history of Mauritius should be          .

       a．seized by the French                             b．became its master

       c．ruled by the Dutch                               d．conquered by the British

       A．b，a，c，d         B．a，c，d，b         C．d，e，a，b         D．c，a，d，b

71．According to the passage all of the following statements are true EXCEPT         .

       A．Arable land covers 90% of the country’s total area

       B．It was the rule of foreigners that made the Mauritius people live in poverty

       C．More than half of Mauritius population are Indians

       D．Britain ruled the island longer than French and Dutch

72．Which of the following maps shows the right position of Mauritius?

    (MAU = Mauritius; MA = Madagascar; A = Africa)

阅读下列材料及相关信息，从所给的六个选项(A、B、C、D、E、F)中，选出符合各小题要求的最佳选项。选项中有一项是多余选项。以下是演讲会的资料：

以下是想去听演讲的人员的基本信息，请匹配适合他们的演讲内容。

1. Alice is now studying in Beijing University, and she is especially interested in Chinese writing. In her spare time she enjoys drawing, writing poems and is fond of sharing her pieces with her classmates.

2. Simon comes from Egypt. He is now studying in Beijing Art Academy. He shows great interest in Chinese ancient characters. Now he wants to know much about it.

3. Lora and Peter, visiting professors from Australia, are both crazy about Chinese traditional culture. At weekends they like to call on Chinese families to learn about Chinese festivals as well as their history.

4. Edward is a senior student in Beijing Foreign Language University. He likes traveling very much and has made up his mind to work as an interpreter for some joint–venture enterprises (合资企业).

5. Steve and Mark are both studying in the Chinese Department of China’s Renmin University. They want to do some research on Chinese ancient literature.