Sometime early in the next century, human beings will move to Mars. They will live there for about a year, and then will be replaced with another group of pioneers. Building the base on Mars will advance our knowledge of the solar system and aid in our understanding of the earth.

We already know that Mars resembles the earth in many aspects: general size, presence of water, length of day, range of temperatures. These resemblances have caused many people to consider a centuries-long project: to terraform Mars. Terraforming means altering a planet’s surface so that Earth’s life forms can survive there. This concept, previously found only in science fiction is now being seriously considered by scientists.

Terraforming Mars is theoretically simple: add nitrogen and oxygen to the atmosphere; pump water to the surface; and add the earth’s plants and animals in the order in which they developed on Earth. But it will take at least 300 years.

Some people think that such a project is too huge for humans to undertake, but there are very good reasons to make the attempt. The earth now contains some 6 billion people, and no one has any idea of how many humans the earth can support. Our very existence and numbers are threatening many other species. We also have had some experience with terraforming our own planet: altering the landscape, the atmosphere and the climate. Currently terraforming earth has become a wiser activity as we try to control global warming, air and water pollution, and preserve some natural living places.

While the possibility of such a project is small, it is not impossible .Even if earth –bound societies come and go in the next 300 years, the project can continue through the work of the Mars settlers without the need for constant backing from the earth.

 The future existence of all the people in our world may very well depend upon our ability to terraform Mars.

1.What would be the best title for this passage?

A．Terraforming Mars.               B．Saving the Earth

C．Travelling to Mars.                 D．A Newly-found Place

2.What does the underlined word “altering” mean in the second paragraph?

A．Warming.    B．Changing.    C．Planting.      D．Building

3.According to the passage the main purpose of terraforming Mars is to ________.

A．do some scientific research work

B．find out its similarity to earth

C．avoid the dying away of many other species

D．find on Mars living place for the increasing human beings

4.The main reason for causing many people to consider terraforming Mars is that _______.

A．there are some resemblances between Earth and Mars.

B．terraforming Mars is theoretically simple

C．we have had some experience with terraforming our own planet: Earth

D．the development of science and technology is very rapid

5.What’s the author’s attitude towards the project?

A．Optimistic.  B．Negative

C．Sceptical（怀疑的）  D．Objective.

 

Sometime early in the next century, human beings will move to Mars. They will live there for about a year, and then will be replaced with another group of pioneers. Building the base on Mars will advance our knowledge of the solar system and aid in our understanding of the earth.

We already know that Mars resembles the earth in many aspects：general size, presence of water, length of day, range of temperatures. These resemblances have caused many people to consider a centuries-long project：to terraform Mars. Terraforming means altering a planet’s surface so that Earth’s life forms can survive there. This concept, previously found only in science fiction is now being seriously considered by scientists.

Terraforming Mars is theoretically simple：add nitrogen and oxygen to the atmosphere; pump water to the surface; and add the earth’s plants and animals in the order in which they developed on Earth. But it will take at least 300 years.

Some people think that such a project is too huge for humans to undertake, but there are very good reasons to make the attempt. The earth now contains some 6 billion people, and no one has any idea of how many humans the earth can support. Our very existence and numbers are threatening many other species. We also have had some experience with terraforming our own planet：altering the landscape, the atmosphere and the climate. Currently terraforming earth has become a wiser activity as we try to control global warming, air and water pollution, and preserve some natural living places.

While the possibility of such a project is small, it is not impossible. Even if earth-bound societies come and go in the next 300 years, the project can continue through the work of the Mars settlers without the need for constant backing from the earth.

he future existence of all the people in our world may very well depend upon our ability to terraform Mars.

1．What would be the best title for this passage?

A．Terraforming Mars.                             B．Saving the Earth.

C．Travelling to Mars.                              D．A Newly-found Place.

2．What does the underlined word “altering” mean in the second paragraph?

A． Warming.            B．Changing.            C．Planting.              D．Building.

3．According to the passage the main purpose of terraforming Mars is to       _________.

A．do some scientific research work

B．find out its similarity to earth

C．avoid the dying away of many other species

D．find on Mars living place for the increasing human beings

4．What’s the author’s attitude towards the project?

A．Optimistic．                                       B．Negative.

C．Doubtful                             D．Objective.

Clothes can make phone calls, play music, dial your pal's number, keep you warm during cold weather and operate your computer.

This is not a fantasy. A British company, called electro­texiles, has created a wide range of clothes—clothes tha have minds of their own ! Scientists, working for the company, have invented a kind of fabric that can be mixed with flexible electronic materials to create intelligent clothing. The results are electronic garments.

If you think the weather has to be wired to different devices, think again. These designer clothes are wirefree, soft to touch and washable! Like any electronic device, these high­tech clothes have to be powered. Currently, a tiny nine­volt battery serves the purpose. But the researchers hope that in the near future the clothes will generate electricity by using body heat. These clothes are 100% shockproof, they say.

The electrotexiles team has also created the world's first cloth keyboard. These keyboard can be sewn into your trousers or skirt. To use this device, you will have to sit down and tap on your lap! These “lap­tap” devices are all set to take over laptop computers!

Another useful garment is the shirt­cum­mobile phone. This handy invention enables drivers to chat comfortably with others at the wheel! Other popular electronic wears include the denim (牛仔布) jacket with flexible earphones sewn into the hoop and the electronic ski jacket with a built­in heater. The ski jacket is also programmed to send signals to a satellite. This technology is known as global positioning system and can be used to track lost skiers and wandering kids.

Having completed the cloth keyboard, scientists have already started to work on a new project—a necktie that can be used as a computer mouse. What is the next? Do you have any idea?

60．The electronic garments are similar to other electronic devices in that ________.

A. they feel smooth and soft  

B. they use electricity as power

C. they can be washed in water 

D. they are made from flexible materials

61．How will researchers improve these high­tech clothes?

A. Body heat will be used as power.

B. The wearer will not get shocked.

C. A tiny nine­volt battery will work. 

D. They will get charged automatically.

62．The main purpose of the text is________.

A. to advertise for an English company

B. to predict the future trend of the products in the company

C. to show how rapidly science develops

D. to introduce some intelligent (智能的) clothing in the company

63．It can be inferred that the author's attitude towards the company is ________.

A. negative (消极的)   B. casual 

C. optimistic   D. doubtful

Sometime early in the next century, human beings will move to Mars（火星）．They will live there for about a year，and then will be replaced with another group of pioneers．Building he base on Mars will advance our knowledge of the solar system and aid in our under standing of the earth．   

      We already know that Mars resembles the earth in many aspects：general size，presence of water，length of day． range of temperatures．These resemblances have caused many people to consider a centuries’ long project：to terraform Mars．Terraforming means altering a planet’s surface so that Earth’s life forms can survive there．This concept，previously found only in science diction is now being seriously considered by scientists．

    Terraforming Mars is theoretically simple：add nitrogen and oxygen to the atmosphere；pump water to the surface；and add the earth’s plants and animals in the order in which they developed on earth．But it will take at least 300 years．

    Some people think that such a project is too huge for humans to undertake，but there are very good reasons to make the attempt．The earth now contains some 6 billion people and no one has any idea of how many humans the earth can support．Our very existence and numbers are threatening many other species．We also have had some experience with terraforming our own planet：altering the landscape，the atmosphere and the climate．Currently terraforming earth has become a wiser activity as we try to control global warming，air and water pollution，and preserve some natural living places．

    While the possibility of such a project is small，it is not impossible．Even if earthbound societies come and go in the next 300 years，the project can continue through the work of the Mars settlers without the need for constant backing from the earth．

    The future existence of all the people in our world may very well depend upon our ability to terraform Mars．

1．What would be the best title for this passage?

    A．Terraforming Mars．                               B．Saving the Earth．   

    C．Travelling to Mars．                                   D．A Newly found Place．

2．What does the underlined word“altering”mean in the second paragraph?

    A．Warming             B．Changing．          C．Planting．        D．building．

3．According to the passage the main purpose of terraforming Mars is to_____．

    A．do some scientific research work

    B．find out its similarity to earth

    C．avoid the dying away of many other species

    D．find on Mars living place for t he increasing human beings

4．The main reason for causing many people to consider terratormsng Mars is that _____． 

    A．there are some resemblances between Earth and Mars

      B．terraforming Mars is theoretically simple

    C．we have had some experience with terratorming our own planet：Earth

      D．the development of science and technology is very rapid   

5．What’s the author’s attitude towards the project?

    A．Optimistic．        B．Negative．           C．doubtful．              D．Objective

Sometime early in the next century, human beings will move to Mars. They will live there for about a year, and then will be replaced with another group of pioneers. Building the base on Mars will advance our knowledge of the solar system and aid in our understanding of the earth.

We already know that Mars resembles the earth in many aspects: general size, presence of water, length of day, range of temperatures. These resemblances have caused many people to consider a centuries-long project: to terraform Mars. Terraforming means altering a planet’s surface so that Earth’s life forms can survive there. This concept, previously found only in science fiction is now being seriously considered by scientists.

Terraforming Mars is theoretically simple: add nitrogen and oxygen to the atmosphere; pump water to the surface; and add the earth’s plants and animals in the order in which they developed on Earth. But it will take at least 300 years.

Some people think that such a project is too huge for humans to undertake, but there are very good reasons to make the attempt. The earth now contains some 6 billion people, and no one has any idea of how many humans the earth can support. Our very existence and numbers are threatening many other species. We also have had some experience with terraforming our own planet: altering the landscape, the atmosphere and the climate. Currently terraforming earth has become a wiser activity as we try to control global warming, air and water pollution, and preserve some natural living places.

41．What would be the best title for this passage?

 A．Terraforming Mars.            B．Saving the Earth.

C．Travelling to Mars.             D．A Newly-found Place.

42．What does the underlined word “altering” mean in the second paragraph?

A．Warming.  B．Changing.    C．Planting.    D．Building.

43．According to the passage the main purpose of terraforming Mars is to ________.

A．do some scientific research work

B．find out its similarity to earth

C．avoid the dying away of many other species

D．find on Mars living place for the increasing human beings

44．The main reason for causing many people to consider terraforming Mars is that _______.

A．there are some resemblances between Earth and Mars.

B．terraforming Mars is theoretically simple

C．we have had some experience with terraforming our own planet: Earth

D．the development of science and technology is very rapid

45．What’s the author’s attitude towards the project?

A．Optimistic.   B．Negative.    C．Sceptical（怀疑的）. D．Objective.