7. ，everything will be all right,and we shall not make any major mis- takes, (long)

只要坚持这种态度，一切都好，而且我们也就不会犯任何大错误。

6.I wish to take this opportunity to thank you        for your warm reception

and incomparable hospitality, (behalf)

我愿借此机会仅代表我所有的同事对你们热情的接待以及无以伦比的款待表示感谢。

5.If you        ，your success is in the not too distant future, (keep)

如果你继续努力，成功便指日可待。

4.The large firm        where these are seen to be really necessary, (opposed)

这家大公司不反对认定确有必要的改变。

3  All the decisions，        in life direction， are made in a state of silence

and stillness, (result)

一切的决定，导致生命方向的变化，都是在寂静的状态中而完成的。

2.Some experts        certain people are predisposed to be late and that part of the problem may come deep from the brain. (subscribe)

有些专家赞同这样的理论，亦即有些人特别容易迟到，而问题可能部分来自大脑的深处。

1."Today,I am amazed at the changes        ，" said the Prime Minister."They are beyond my wildest hopes. " (come)

"今天，我对所发生的这些变化感到惊喜。"首相说:"这些变化大出我之所望。"

 Some places are so beautiful or so important in the history of the United States that the na?tional government has set them aside to protect them. They are cared for so that everyone now and in the years to come can enjoy them.

 Ranking at the top of these places are the national parks. There are also historical parks and sites, national monuments, military parks, battlefield sites, national, cemeteries, memorials, parkways, and state parks. All together they make up the national park system of the United States. They are managed by the national park service.

 The oldest of the national parks is Yellowstone. It was made a park in 1872. Now the Unit?ed States has more than 30 national parks. But Yellowstone is still the largest with over two mil?lion acres.

 The government hires many workers to take care of the parks. There are scientists who know a great deal about wildlife. They see to it that the animals of the parks can roam around arid live as they naturally would. There are scientists who know a lot about insects and diseases that might harm the trees and wild flowers. There are scientists who know a great deal about the rocks of the region. There are rangers who see to it that the visitors follow the park rules.

 The national parks are wonderful playgrounds. There are places for campers. And there are cabins to rent and lodges with dining rooms where visitors may stay as they do in a hotel. In ad?dition，there are wonderful opportunities for hiking， taking boat trips， fishing， swimming， ex?ploring the wilderness, and even climbing mountains.

 The parks,however, are more than just interesting and beautiful. They have been called the biggest summer schools in the world. In each park there are scientist guides to explain to the visitors what they are seeing. There are museums, too,with exhibits to show visitors how the regions came to be as they are. Every year millions of visitors go to the national parks. 

(   ) 5. What do we know about Yellowstone according to the passage? 

   A. It covers about three million acres. 

   B.  It is one of those latest national parks.

   C.It belongs to the historical parks and sites.

   D.It is a most important national park in America.

(   ) 6. Rangers are hired in the national parks to        .

   A. watch visitors' behavior in the parks

   B.analyze the rocks in the parks

   C.take care of the forests in the parks

   D.guide visitors around the parks

(   ) 7. Why are the national parks called the biggest summer schools in the world?

   A.Because Visitors can learn the history of the parks.

   B.Because visitors crowd into the parks every summer.

   C.Because visitors can explore the wilderness and take boat trips there.

   D.Because visitors can learn from the scientists in the parks. 

(   ) 8. What is the passage mainly about?

   A.The problems of the national parks.

   B.A brief introduction to the national parks.

   C.Some tips on traveling in the national parks.

   D.A brief introduction to the national park service.

 Rising temperatures, rising sea levels and other trends are having an effect on the world's sea turtles. All female turtles come ashore at nesting beaches, dig nests in the sand,lay their eggs and then return to the sea. Erosion of nesting beaches caused by rising sea level and more intense storms adds the potential for further dangers to nesting beaches where people，dogs and rats already prey on the eggs of marine turtles.

  Climate change directly affects the reproduction of sea turtles in three ways. First, sea level rise will affect significant nesting beach areas on low-level sand beaches such as Bonaire, the Maldives and the Great Barrier Reef. Second, rising temperatures increase the chance that sand temperature will exceed the upper limit for egg incubation(姅化) ，which is 34t. Third,rising temperatures bias(使偏向) the sex ratio toward females because temperature during incubation determines the sex of the egg. Loggerhead turtle nests in Florida are already producing 90 per?cent females owing to high temperatures，and if warming raises temperatures by an additional

or more,no males will be produced there.

  Adult feeding patterns are also affected by climate change. Sea grass beds are in decline, water temperature is higher on inter-tidal sea grass fiats, and coral reefs, typically feeding grounds for green turtles, are affected by bleaching(漂白) .

  Sea turtles have existed for more than 100 million years and have survived ice ages. As a result, they may be able to respond to unfavorable nesting temperatures, by seeking out new nesting sites. It may however take decades or centuries for sea turtles to re-establish and stabilize their habitats，and steady human development of coastal areas makes the availability of new hab?itat for them very limited.

(   ) 1. What will happen if sand temperature is higher than 34^3?

    A. More females will be born.   B. Turtle eggs will not hatch.

   C. Females will lay fewer eggs.   D. Newly-born turtles will die.

(   ) 2. In what way does climate change affect adult turtles?

    A. They can't find enough food.   B. They have lost their habitat.

   C. Their feeding patterns are affected.   D. Their living habits are changed. 

(   ) 3. What can we learn about Loggerhead turtle nests in Florida?

    A. They already have an imbalanced sex ratio.

    B.They can hardly survive the high temperature.

   C.No more males are produced now.

   D.Most of them die young.

(   ) 4. We can infer from the last paragraph that______ .

   A.human development constantly threaten the survival the of sea turtles

   B.climate change can't threaten the survival of sea turtles

   C.sea turtles can get used to cold climate

   D.it's easy for sea turtles to find new habitat

  A hunter went into the forest and found an eagle's egg that had fallen from its nest. Surpris?ingly ,it remained 1The hunter took the egg and put it 2 the nest of a prairie chick?en. The eagle's egg 3 along with the other eggs in the prairie chicken's nest,and the little eagle grew up with the other baby birds. The young eagle 4 he was a prairie chicken.

  And he 5 to do what prairie chickens did.

  The years passed and the young eagle became fully 6 . One day he 7 and saw a huge bird high above in the cloudless sky.

  "What a beautiful bird," he exclaimed. "What is it? That's an eagle―the 8 of birds," one of the chickens said. "But don't give it a 9 thought, you can 10 be like him."

  The eagle might have11 after living the life of a chicken, but 12 ，he couldn't forget the big bird and thought about it all the time. On another day，as he  13 in the dirt for seeds and insects，he saw that same huge bird again as it flied high above with its huge wings outstretched against the sky.

" 14   ，" he said to himself. " I too，have giant wings，and my feet have huge 15 that could be used for 16 getting insects from dirt."

   17 the eagle got a running start and leaped(跳跃) into the 18 working his huge wings rhythmically(有节奏地) and steadily as he had seen the huge bird did. 19 of rising only a few feet as usual, he flied into the sky and found his true 20 and destiny. 

(   ) 1.A. unbroken   B. unchecked   C. unfound   D. undone

(   ) 2.A. outside   B. above   C. in   D. near

(   ) 3.A. broke   B. smelled   C. changed   D. hatched

(   ) 4.A. admitted   B. thought   C. found   D. hoped

(   ) 5.A. learned   B. refused   C. pretended   D. desired

(   ) 6.A. valuable   B. disappointed   C. grown   D. old

(   ) 7.A. got up   B. turned up   C. showed up   D. looked up

(   ) 8.A. chief   B. enemy   C. example   D. friend

(   ) 9.A. more   B. third   C. second   D. meaningless

(   ) 10.A. always   B. never   C. often   D. sometimes

(   ) 11.A. regretted   B. changed   C.died   D. slept

(   ) 12.A. fortunately   B. unluckily   C. hopefully   D. sadly

(   ) 13.A. lay   B. ran   C. flied   D. scratched

(   ) 14.A. Interesting   B. Impossible   C. Silly   D. Strange

(   ) 15.A. covers   B. claws   C. skin   D. feathers

(   ) 16.A. more than   B. other than   C. less than   D. rather than

(   ) 17.A. Or   B. But   C. Yet   D. So

(   ) 18.A. lake   B. air   C. forest   D. ground

(   ) 19.A. Ashamed   B. Ahead   C. Instead   D. Proud

(   ) 20.A. character   B. potential   C. personality   D. source