Barbara and Barry Zucker – Pinchoff, both doctors from New York City, took their three daughters on a walking safari（旅行）last year in Tanzania. Barbara told about their experience in Kinbero, “It is the most remote（遥远的）place we have ever been to,” camping with a few other Americans, two Tanzanian guides, and several Hadza（哈扎人）who had time to sit and chat because they had just killed a giraffe.

About 400 members of the Eastern Hadza tribe（部落）live in Tanzania today, the only hunter-gatherers who remain in Africa. The Hadza hunt game, gather edible plants and honey, and move from place to place whenever the weather changers. Every two weeks or so, they move to a new campsite.

At the Pinchoffs’ campsite, three Hadza men stopped by to visit and ended up staying three days. One of the guides gave the men a cigarette. They took out the tobacco, put it in a pipe, and lit the pipe with fire they started.

It takes less than two hours for Hadza women to build a new camp. They make huts（茅屋）by bending branches into round structures about six feet high, and then covering them with long, golden grass. If the weather is very wet, the women may choose a dry cave to set up a camp. Some rock caves have been used over thousands of years and are decorated（装饰）with ancient rock paintings. Whether they sleep in huts, caves or in the open, the Hadza cover themselves only with thin cloths and depend on fire to keep them warm.

The Hadza refuse to be “settled” into villages or to have the life of farmers. By 1979, almost all of them had returned to their old ways. They Hadza may be the only tribe in Africa the has never paid taxes.

The passage mainly tells up         .

A. one of the author’s travel experiences

B. the life of the Hadza tribe in Tanzania

C. Barbara’s walking safari in Tanzania

D. the efforts of the Hadza to keep their old ways

What does the underlined word “game” ( in Paragraph 2 ) probably refer to?

A. Part of a match.                                           B. Edible wild animals.        

C. An area of work.                                                 D. A children’s activity.

What do we know about the life of the Hadza?

A. They change their campsites regularly.           B. They live mainly on farming.

C. They keep warm using leaves at night.            D. It takes them a long time to set up a camp.

Where do the Hadza live in wet weather?

A. On the farm.            B. In huts.             C. In caves.           D. In the open.

Everyday rubbish could provide a valuable source of energy thanks to a clever new invention. Smelly methane（沼气）gas expelled from landfill sites containing tones of rotting household waste could be used to produce a valuable energy resource. In Europe alone land fill tips produce 94 billion cubic meters of methane per year but currently only one percent of what could be a valuable source of energy is used, the rest is burnt off to prevent an explosive build up of gas.

Methane gas forms when organic matter breaks down and is drawn off from large rubbish tips by pipes sunk into the middle of the waste. Until now this process wasn’t possible on small sites because the pipe allowed oxygen to seep in and that stop the breakdown process.

Viktor Popov of the Wessex Institute of Technology has now developed a system to modify existing landfill sites by making them airtight while the methane is extracted from sunken wells. The site is covered by a special three-layered skin whose two outer layers are made of clay with a pressurized（加压的）layer of carbon dioxide gas in the middle. As the methane is sucked out through a central well it is replaced by carbon dioxide from the middle layer rather than oxygen, allowing the breakdown process to continue.

Unfortunately there are no plans to use the power of methane even though Popov claims his invention could provide a valuable source of energy over the next 20 years.

The passage mainly introduces ______ to us.

A．how to make methane     B．a new way to make use of rubbish 

C．the valuable things in rubbish  D．the amount of rubbish beig reused

From the passage we can see that _____.

A．in Europe 94 billion cubic meters of methane is produced every year

B．some of the waste will explode if it is not burnt off

C．99% of the rubbish has been burnt off in Europe

D．only a very small part of this kind of energy is used in Europe

In the passage the underlined word “that” refers to ______.

A．methane gas     B．the long pipe    C．oxygen     D．the rubbish

Which of the following statement is NOT true according to the passage?

A．Oxygen can cause the breakdown process to stop.

B．When the methane is sucked out, oxygen will enter from the middle layer.

C．Carbon dioxide doesn’t affect the breakdown process.

D．The new invention has not been put into use.

Barbara and Barry Zucker – Pinchoff, both doctors from New York City, took their three daughters on a walking safari（旅行）last year in Tanzania. Barbara told about their experience in Kinbero, “It is the most remote（遥远的）place we have ever been to,” camping with a few other Americans, two Tanzanian guides, and several Hadza（哈扎人）who had time to sit and chat because they had just killed a giraffe.

About 400 members of the Eastern Hadza tribe（部落）live in Tanzania today, the only hunter-gatherers who remain in Africa. The Hadza hunt game, gather edible plants and honey, and move from place to place whenever the weather changers. Every two weeks or so, they move to a new campsite.

At the Pinchoffs’ campsite, three Hadza men stopped by to visit and ended up staying three days. One of the guides gave the men a cigarette. They took out the tobacco, put it in a pipe, and lit the pipe with fire they started.

It takes less than two hours for Hadza women to build a new camp. They make huts（茅屋）by bending branches into round structures about six feet high, and then covering them with long, golden grass. If the weather is very wet, the women may choose a dry cave to set up a camp. Some rock caves have been used over thousands of years and are decorated（装饰）with ancient rock paintings. Whether they sleep in huts, caves or in the open, the Hadza cover themselves only with thin cloths and depend on fire to keep them warm.

The Hadza refuse to be “settled” into villages or to have the life of farmers. By 1979, almost all of them had returned to their old ways. They Hadza may be the only tribe in Africa the has never paid taxes.

1. The passage mainly tells up         .

A. one of the author’s travel experiences

B. the life of the Hadza tribe in Tanzania

C. Barbara’s walking safari in Tanzania

D. the efforts of the Hadza to keep their old ways

2.What does the underlined word “game” ( in Paragraph 2 ) probably refer to?

A. Part of a match.                                           B. Edible wild animals.        

C. An area of work.                                                 D. A children’s activity.

3.What do we know about the life of the Hadza?

A. They change their campsites regularly.           B. They live mainly on farming.

C. They keep warm using leaves at night.            D. It takes them a long time to set up a camp.

4.Where do the Hadza live in wet weather?

A. On the farm.            B. In huts.             C. In caves.           D. In the open.

The water froze inside the pipe，causing it to ________and burst.

A．expand           B．export            C．reduce           D．behave

The water froze inside the pipe，causing it to ________and burst.