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Mother gave me 2000 Yuan, most of _______ used for my school fees.

A. them were B. those were

C. that was D. which was

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1.Search engines c___________ of 3 main parts.

2.She made it clear the government would s _____________ to its policies despite disagreement.

3.We e___________ so many problems in our work last year.

4.His mind would w_______ , and he would forget what he was doing.

5.The old house can d_______ back to the 17th century.

6.The film earned him international_________________(声望)

7.Witnesses say the firing was___________(故意的) and sustained.

8.He wants to be in control of his own ________(命运)

9.Everything you see exists together, in a _________(微妙的) balance.

10.She is paging through a magazine___________(漫无目的地).

The Cambridge Science Festival Curiosity Challenge

Dare to Take the Curiosity Challenge!

The Cambridge Science Festival Curiosity Challenge Dare to Take the Curiosity Challenge! The Cambridge Science Festival (CSF) is pleased to inform you of the sixth annual Curiosity Challenge. The challenge invites, even dares school students between the ages of 5 and 14 to create artwork or a piece of writing that shows their curiosity and how it inspires them to explore their world.
Students are being dared to draw a picture, write an article, take a photo or write a poem that shows what they are curious about. To enter the challenge, all artwork or pieces of writing should be sent to the Cambridge Science Festival, MIT Museum, 265 Mass Avenue, Cambridge 02139 by Friday, February 8th.
Students who enter the Curiosity Challenge and are selected as winners will be honored at a special ceremony during the CSF on Sunday, April 21st. Guest speakers will also present prizes to the students. Winning entries will be published in a book. Student entries will be exhibited and prizes will be given. Families of those who take part will be included in the celebration and brunch will be served.
Between March 10th and March 15th, each winner will be given the specifics of the closing ceremony and the Curiosity Challenge celebration.The program guidelines and other related information are available at: http://cambridgesciencefestival.org.

1.Who can take part in the Curiosity Challenge?

A. School students. B. Cambridge locals.

C. CSF winners. D. MIT artists.

2.When will the prize-giving ceremony be held?

A. On February 8th . B. On March 10th.

C. On March 15th. D. O n April 21st.

3.What type of writing is this text?

A. An exhibition guide. B. An art show review.

C. An announcement. D. An official report.

The small factories___________ the fall of the prices.

A. benefited B. benefited from

C. benefited to D. benefited in

Having a trip abroad is certainly good for the old couple, but it remains______ whether they will enjoy it.

A. to see B. to be seen C. seeing D. seen

I was given three books on sewing, the first one______ I really enjoyed.

A. that B. which C. of which D. of that

In 1800, only three percent of the world's population lived in cities. Only one city — Beijing — had a population of over a million. Most people lived in rural areas, and never saw a city in their lives. In 1900, just a hundred years later, roughly 150 million people lived in cities, and the world’s ten largest cities all had populations exceeding one million. By 2000, the number of city dwellers exceeded three billion; and in 2008, the world's population crossed a tipping point — more than half of the people on Earth lived in cities. By 2050, that could increase to over two-thirds. Clearly, humans have become an urban species.

In the 19th and early 20th centuries, many people viewed cities negatively — crowded, dirty environments full of disease and crime. They feared that as cities got bigger, living conditions would worsen. In recent decades, however, attitudes have changed. Many experts now think urbanization (城市化) is good news, offering solutions to the problems of Earth’s growing population.

Harvard economist Edward Glaeser, author of The Victory of the Cir, is one such person. Glaeser argues that cities are very productive because “the absence of space between people” reduces the cost of transporting goods, people, and ideas. While the flow of goods has always been important to cities, what is most important today is the flow of ideas. Successful cities enable people to learn from each other easily, and attract and reward smart people with higher wages.

Another urbanization supporter is environmentalist Stewart Brand. Brand believes cities help the environment because they allow haft of the world’s population to live on about four percent of the land. This leaves more space for open country, such as farmland. City dwellers also have less impact per person on the environment than people in the countryside. Their roads, sewers, and power lines need fewer resources to build and operate. City apartments require less energy to heat, cool, and light. Most importantly, people in cities drive less so they produce fewer greenhouse gases per person.

So it’s a mistake to see urbanization as evil; it’s a natural part of development. The challenge is how to manage the growth.

1.What is Paragraph 1 mainly about?

A. The history of modern cities.

B. Changes taking place within cities.

C. How cities have grown over time.

D. Why modern cities are changing.

2. How have experts’ attitudes towards cities changed in recent decades?

A. They now view the weaknesses as strengths.

B. They no longer see city-riving as attractive.

C. They accept city life in spite of its problems.

D. They think city-riving provides more benefits.

3. Which of the following would Edward Glaeser agree with?

A. Cities provide more economic opportunities.

B. City people get along better with each other.

C. Over-crowded cities result in problems.

D. Cities limit the flow of ideas.

4.According to Paragraph 4, what would be the result of moving people out of cities?

A. Economic production would be reduced.

B. There would be less farmland available.

C. People would travel less frequently.

D. House values would fall greatly.

Almost anyone who has read a travel brochure about Africa has heard of a story ----- that elephants can get drunk by eating the fermented (发酵) marula fruit rotting (腐烂) on the ground. Books have even been written to prove the truth of the phenomenon.

But a study published in the journal Physiological and Biochemical Zoology tells a very different story.

Steve Morris, a biologist at the University of Bristol in England and an author of the study, says there is nothing in the biology of either the African elephant or the marula fruit to support the stories. Morris says, “People just want to believe in drunken elephants.”

The marula tree, a member of the same family as the mango (芒果), grows widely in Africa. Its sweet, yellow fruit is used for making jam, wine and beer. “The first mistake of the drunken-elephant theory is that it’s unlikely that an elephant would eat the fruit if it were rotten,” Morris says. “Elephants eat the fruit right off the tree, not when it’s rotten on the ground,” he explains.

Other experts add that if an elephant were to eat the fruit on the ground, it wouldn’t wait for the fruit to ferment. Michelle Gadd, an African wildlife specialist, says that elephants and many other animals, including birds and monkeys, are too fond of marula fruit to let it rot.

If fermented fruit on the ground is out of the question, so is the concept that the fruit could ferment in the stomach of elephants, according to the study authors. Food takes between 12 and 46 hours to pass through an elephant’s digestive (消化的) system, the authors point out, which is not enough for the fruit to ferment.

Supposing that this happened, it’s still highly improbable that the food would produce enough alcohol to make an elephant drunk. Through calculations of body weight, elephant digestion rates, and other factors, the authors conclude that it would take about 1.9 litres of alcohol to make an elephant drunk.

1.We can learn from the text that ________.

A. African elephants don’t like to eat marula fruit at all

B. it is not easy to find marula fruit in the wild in Africa

C. birds and monkeys in Africa like to eat rotten marula fruit

D. marula fruit can be made into food or drinks consumed by people

2.According to Paragraph 6, marula fruit probably takes _____ to ferment.

A. about 12 hours B. about 34 hours

C. more than 46 hours D. between 12 to 46 hours

3.Which of the following is Mr. Morris’s opinion?

A. Elephants prefer mangoes to the marula fruit.

B. Elephants will not eat the marula fruit if it is rotten.

C. The marula tree and the mango belong to different families.

D. There are several connections between elephants and the marula fruit.

4.What does the underlined word “this” in the last paragraph probably refer to？

A. Elephants getting drunk

B. Elephants eating rotten marula fruit

C. Elephants eating marula trees directly

D. Marula fruit fermenting in elephants’ stomachs

The position, however, ____ you are applying, is not quite a well-paid one.

A. that B. which C. for which D. to which

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