题目内容

Since we ____ for almost two weeks, I’ll need to buy a large backpack in advance to carry my supplies of food and water.

A. have walked B. will be walking

C. have been walking D. walked

 

B

【解析】

试题分析:句意:既然我们要步行几乎两周的时间,我将需要提前买一个大的背包来装食物,水等。根据后句的时态可以判断walk是发生在将来的动作,应该用将来时,故答案选B。

考点:考查动词时态。

 

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A World of Color

No matter where you go, colors are everywhere! And while the colors may be the same, their meanings change depending on the country.

Colors

Different Meanings

Green

Green means “hope” in Ecuador. In the U.S., it’s a symbol of money and concern for the environment.

Purple

Purple is worn by kings and queens in Europe, while in Thailand, it’s worn by women whose husbands have died.

Black

Black is the traditional color of mourning(哀悼) in the West. But on the Pacific islands of Melanesia, it’s a symbol of beauty and speed.

White

White is considered a pure color and is worn at weddings in America. In parts of Asia, however, white is worn to funerals(葬礼) as a sign of winter, when everything is dead.

Red

Red means “beautiful” in Russia, but in South Africa, it’s the color of mourning. In the United States, a bride would be criticized(批评) for wearing a red gown. In India or China, though, brides often wear red as a symbol of good fortune.

Colors mean different things in different countries. No matter what the meaning is, color adds interest to our lives and makes them brighter.

1.In the US if you prefer the color_____, it will probably show that you are concerned about the environment.

A. green B. purple C. black D. white

2.How many colors mentioned in the passage can be used as a sign of mourning?

A. Five. B. Four. C. Three. D. Two.

3.If a bride is wearing a red gown in the wedding, she must come from_____.

A. Thailand B. America C. India D. South Africa

4.Which is true according to the passage?

A. White stands for purity in China.

B. An American bride will wear a red gown on the wedding.

C. Black is a symbol of beauty and speed in the west.

D. Purple is worn by kings and queens in Europe

5.What can we infer from the passage?

A. All the colors have different meanings in different countries.

B. From country to country, people view colors differently.

C. All the brides from China prefer to wear white gowns.

D. White is considered a pure color and often worn to funerals.

 

If you want to see climate change, head north and keep going until you run out of globe. That is easier said than done. The Arctic (北极) is home to few people and covered in ice much of the year. But those who make their way to the icy seas of the Arctic Ocean will see a part of the planet that is warming and changing faster than anywhere else.

In September, scientists announced at the National Snow and Ice Data (数据) Center that Arctic summer sea ice had fallen to its second lowest level since 1979, and probably long before that. The Arctic has lost an area of ice greater than the area of all U.S. states east of the Mississippi River. And what ice remains appears to be getting thinner and weaker.

Nick Toberg and Till Wagner are polar ice scientists who are doing sea ice fieldwork. “There is plenty of data to suggest that the ice is becoming thinner as well as smaller in area,” they say.

The changes happening in the Arctic are a warning for the entire world . As polar expert Walt

Meier puts it, “What happens in the Arctic doesn’t stay in the Arctic.”

Some scientists worry that Arctic sea ice may be going from a downward spiral (螺旋线) to a “death spiral”, one from which there is no escape. As more ice melts (融化), more dark open water appears. The darkness absorbs (吸收) more heat, which speeds up the pace of melting.

Until recently, many scientists thought it might take until the end of the century for the North Pole to become completely ice free during the summer. Now some believe it could happen by 2030 or even earlier. “The melting is happening faster in the real world than it has in the models,” says Nick Toberg.

1.The purpose of the first paragraph is to tell readers __________.

A. it’s difficult to arrive at the Arctic

B. it is too cold for people to live in the Arctic

C. what caused the climate change in the Arctic

D. we can see the most obvious climate change in the Arctic

2.From the second paragraph we can learn Arctic summer sea ice __________.

A. is still decreasing

B. began reducing in 1979

C. fell to its lowest level in September

D. is equal to the Mississippi River

3.What does the underlined sentence in Paragraph 3 mean?

A. The changes don’t affect the Arctic at all.

B. The changes will only happen in the Arctic.

C. The changes happening in the Arctic will stop.

D. The changes will also affect other parts of the world.

4.Nick Toberg may agree that __________.

A. the ice in the North Pole will stop melting

B. the ice in the North Pole is melting faster than expected

C. the ice in the North Pole will melt before 2030 or even earlier

D. the ice in the North Pole will not disappear until the end of the century

 

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