我一直忙于学习.以至于没有时间去进行社交活动.I have been I haven't had time for social activities, 题目和参考答案——青夏教育精英家教网—

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4. 我一直忙于学习，以至于没有时间去进行社交活动。

I have been I haven't had time for social activities, (so...that...)

4. so occupied with study that

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Facebook 47. (block) in China since2009,but the company has long expressed a desire 48. (enter) the Chinese market. On Wednesday,Facebook's chief executive,Mark Zuckerberg,gave a dramatic display of his interest 49. the country,speaking in Chinese for about half an hour at 50. forum at Tsinghua University in Beijing. He discussed his thoughts on innovation (创新) in China,Facebook's future in the country and 51. he is studying Chinese. His Mandarin is 52. from perfect,53 . his first few words were received with cheers and applause by the students present.

"Hello everyone. Thanks for coming," he told the group. "I'm very glad to be in Beijing. I love this city. My Chinese is really a mess,but I study using Chinese every day.""Perhaps I need practice," he added. 54. (ask) why he studied the language,Mr Zuckerberg said his wife Priscilla Chan's family members speak Chinese. He said that while he knows more words in Mandarin,his wife also speaks Cantonese and has much 55. (well) listening comprehension than he does. "One time I asked her” Why is 56. listening comprehension so bad?'" Mr Zuckerberg said. "She said, ' Your listening comprehension in English is also bad."

1. They donated many interesting books to (迎合孩子们的需要) .

Travel is a hot topic 1. (especial) during holidays. Travel not only broadens a person's horizons but also 2. (open) one's eyes. What is more,it can make a person 3. (refresh) . At the same time,it makes you come into contact 4. different cultures,meet people of different colours and go through places of interest and ceremonies. Travelling much,not only enriches your 5. (know) and experiences,but also enables you to be aware of the vastness of nature.

Travel may also free a person 6. boredom and gloom. Just forget all the 7. (day) routines and burdens. Travel brings you enjoyment and attraction. It gives you a pleasant experience,8. will help you get rid of your boredom and make you forget whatever annoys you. Travel 9. (broad) your mind and leaves you good memories. Later,you may go over these memories and enjoy your past experiences,thus 10. (keep) a fresh and sunny mind.

Have you ever thought, "I wish I could take a year off and just travel around the world?" Well,three lucky American teenagers were able to do just that. The teenagers―two males and one female―got an all-expenses-paid hike to five continents.

This trip didn't include any fivestar hotels or shopping fun. 18-year-old Jamie Fiel from Keller,Texas,17-year-old Arsen Ewing from Canyon,California,and 16-year-old Tyler Robinson from Lincoln,Massachusetts,didn't expect fancy treatment. They signed up for the experience of a lifetime,which included hard work and often uncomfortable accommodations,and they may encounter with some of nature's most dangerous animals and environments.

Jamie,Arsen,and Tyler were among hundreds of high school kids nominated by their science teachers to take this trip. Earthwatch Institute sponsored (赞助) this adventure. Each year,Earthwatch Institute employs thousands of volunteers worldwide to help with scientific research projects.

The group went all around the world to get a close look at the most pressing environmental issues of our time. Their assignments were as varied as their loca?tions,and included measuring and attending pink flamingos in Kenya's Great Rift Valley,and tracking giant sea turtles in Costa Rica.

As they worked with the scientists of Earthwatch Institute,Jamie,Arsen,and Tyler began to understand that we are at a critical moment in the life of our planet. Time for change is running out. As the teenagers went from country to country and witnessed different environmental dangers and challenges,they understood that so?lutions to important environmental issues start with the power of one person's ac?tions. They realized that each of them can make a difference.

1. These teenagers went on the journey around the world .

A. to experience the most serious environmental problems on the earth

B. to bring the kindness of America to the other parts of the world

C. to go sightseeing around the world

D. to call on more teenagers to join Earthwatch Institute

2. Which is TRUE about their journey?

A. They had to pay for their journey on their own expense.

B. They often had to move from one hotel to another.

C. They had to take great pains to collect environmental information.

D. They received a warm welcome every time they arrived at a new place.

3. It can be inferred that Earthwatch Institute could be .

A. an international university that takes in students from all over the world

B. a TV station that makes programmes on the beautiful scenery of the earth

C. a travel agency that organizes adventure trips especially for school children

D. an organization that brings science to life for people concerned about the earth's environment

4. The underlined word "encounter" means" ".

A. agree B. meet C. begin D. trade

4. All the machines are listed in the (目录) .

7. The plants died (因缺乏....... ) water.

4. His contribution to the country was never officially (acknowledge) ，which made all of us feel discouraged.

6. The air quality in the city, is shown in the report,has improved over the past two months.

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