题目内容

       Experts think we won’t have clean water to drink unless something_______ soon, but much remains_______ about environment protection.

A. would be done; doing                                B. is done; to be done    

C. will be done; to do                                    D. is done; to do

B

练习册系列答案
相关题目

Christmas bird – watching is popular in the U.S.A. When the holiday season comes, some Americans are likely to watch and count birds in the sky with great interest every day. This activity began in the early part of the last century. It has a one-hundred-year history. At that time, there was a so-called “holiday hunting” custom. In order to celebrate the holiday, the hunters went out to kill birds and beasts. By 1900, there were 27 bird lovers who decided to count birds instead of killing birds. Since then, Christmas bird-watching was held every year. It has been continued to the present.

There were 42000 people who took part in the bird-watching last Christmas, from December 16 the year before to January 3 next year. They were in the United States and Canada, central America, south America and the Caribbean, watching and counting birds in the sky. The whole viewing area was divided into 1600 points. Each birdwatcher was responsible for 25 meters, and was required to write down the types and quantities of birds within 24 hours.

A birdwatcher described what he had watched vividly in his diary—“ When I looked up, I saw a beautiful ‘landscape’ in the sky: Red-crowned cranes(丹顶鹤) were driving up in cunning wedges that split the air. They were so neatly arranged, coordinating their movements. I was excited and breathtaking. Interestingly, the “human” shape(人字行) always maintains 110° ” .

“Why do red-crowned cranes choose to use ‘human’ shape when flying in formation?” He continued, “In my opinion, there are four reasons: first, the ‘human’ shape can make red-crowned cranes use increasing air which is produced by each other’s wings when they are swinging in the sky. It can increase the glide time and save physical ability. Second, the ‘human’ shape will enhance communication among the birds. The orders and the relevant information issued by the lead bird can be conveyed to each member in this migratory group unimpeded, accurately, rapidly and conveniently. Third, such a formation will help to find the birds left behind because of feeling run down as fast as possible, so that the young, the weak, the sick birds can get everyone’s help and encouragement. Finally, the ‘human’ shape shows not only beauty but also unity. It can give enemies a deterrent.They will be terrified and did not dare to attack the birds.The migration security of the birds will be ensured.”  

Environmental experts admired and evaluated Christmas bird-watching highly. They pointed out that it made perfect sense. On the one hand it could enhance the human awareness of environmental protection. On the other hand it could provide first-hand information on birds.

49．When did Christmas bird – watching begin?

         A．Sometime during Christmas holiday.         B．At the beginning of 20th century.

         C．In the early 19 th century.          D．Since there was Christmas Day

50．What do bird – watchers do when they are bird – watching?

         A．They kill birds and beasts.          B．They watch birds and beasts.

         C．They watch and count birds.     D．They look at the sky and write diaries.

51．The following are all reasons for red – crowned cranes flying in “human” shape except      .

         A．they can help each other and ensure their safety

         B．they can communicate with each other in order to reduce tiredness.

         C．they can make use of the air produced by each other’s wings.

         D．they can look stronger in case they come across enemies

52．This passage consists of five paragraphs. Please arrange the five main ideas of the paragraphs in order of their appearance in the passage.

    a. How the bird – watchers divided their watching task and what was done.

         b. How Christmas bird – watching came into being.

         c. Christmas bird – watching is of great importance environmentally and scientifically.

         d. A Christmas bird – watcher watched and was amazed by red – crowned cranes.

         e. Red – crowned cranes fly in “human” formation for quite good reasons.

         A．a – b – c – d – e         B．b – c – e – d – a         C．b- a – d – e – c D．b – d – e – a – c

 

Christmas bird – watching is popular in the U.S.A. When the holiday season comes, some Americans are likely to watch and count birds in the sky with great interest every day. This activity began in the early part of the last century. It has a one-hundred-year history. At that time, there was a so-called “holiday hunting” custom. In order to celebrate the holiday, the hunters went out to kill birds and beasts. By 1900, there were 27 bird lovers who decided to count birds instead of killing birds. Since then, Christmas bird-watching was held every year. It has been continued to the present.

There were 42000 people who took part in the bird-watching last Christmas, from December 16 the year before to January 3 next year. They were in the United States and Canada, central America, south America and the Caribbean, watching and counting birds in the sky. The whole viewing area was divided into 1600 points. Each birdwatcher was responsible for 25 meters, and was required to write down the types and quantities of birds within 24 hours.

A birdwatcher described what he had watched vividly in his diary—“ When I looked up, I saw a beautiful ‘landscape’ in the sky: Red-crowned cranes(丹顶鹤) were driving up in cunning wedges that split the air. They were so neatly arranged, coordinating their movements. I was excited and breathtaking. Interestingly, the “human” shape(人字行) always maintains 110° ” .

“Why do red-crowned cranes choose to use ‘human’ shape when flying in formation?” He continued, “In my opinion, there are four reasons: first, the ‘human’ shape can make red-crowned cranes use increasing air which is produced by each other’s wings when they are swinging in the sky. It can increase the glide time and save physical ability. Second, the ‘human’ shape will enhance communication among the birds. The orders and the relevant information issued by the lead bird can be conveyed to each member in this migratory group unimpeded, accurately, rapidly and conveniently. Third, such a formation will help to find the birds left behind because of feeling run down as fast as possible, so that the young, the weak, the sick birds can get everyone’s help and encouragement. Finally, the ‘human’ shape shows not only beauty but also unity. It can give enemies a deterrent.They will be terrified and did not dare to attack the birds.The migration security of the birds will be ensured.”

Environmental experts admired and evaluated Christmas bird-watching highly. They pointed out that it made perfect sense. On the one hand it could enhance the human awareness of environmental protection. On the other hand it could provide first-hand information on birds.

49．When did Christmas bird – watching begin?

       A．Sometime during Christmas holiday.     B．At the beginning of 20th century.

       C．In the early 19 th century.       D．Since there was Christmas Day

50．What do bird – watchers do when they are bird – watching?

       A．They kill birds and beasts.      B．They watch birds and beasts.

       C．They watch and count birds.   D．They look at the sky and write diaries.

51．The following are all reasons for red – crowned cranes flying in “human” shape except      .

       A．they can help each other and ensure their safety

       B．they can communicate with each other in order to reduce tiredness.

       C．they can make use of the air produced by each other’s wings.

       D．they can look stronger in case they come across enemies

52．This passage consists of five paragraphs. Please arrange the five main ideas of the paragraphs in order of their appearance in the passage.

    a. How the bird – watchers divided their watching task and what was done.

       b. How Christmas bird – watching came into being.

       c. Christmas bird – watching is of great importance environmentally and scientifically.

       d. A Christmas bird – watcher watched and was amazed by red – crowned cranes.

       e. Red – crowned cranes fly in “human” formation for quite good reasons.

       A．a – b – c – d – e     B．b – c – e – d – a      C．b- a – d – e – c       D．b – d – e – a – c

Christmas bird – watching is popular in the U.S.A. When the holiday season comes, some Americans are likely to watch and count birds in the sky with great interest every day. This activity began in the early part of the last century. It has a one-hundred-year history. At that time, there was a so-called “holiday hunting” custom. In order to celebrate the holiday, the hunters went out to kill birds and beasts. By 1900, there were 27 bird lovers who decided to count birds instead of killing birds. Since then, Christmas bird-watching was held every year. It has been continued to the present.

There were 42000 people who took part in the bird-watching last Christmas, from December 16 the year before to January 3 next year. They were in the United States and Canada, central America, south America and the Caribbean, watching and counting birds in the sky. The whole viewing area was divided into 1600 points. Each birdwatcher was responsible for 25 meters, and was required to write down the types and quantities of birds within 24 hours.

A birdwatcher described what he had watched vividly in his diary—“ When I looked up, I saw a beautiful ‘landscape’ in the sky: Red-crowned cranes(丹顶鹤) were driving up in cunning wedges that split the air. They were so neatly arranged, coordinating their movements. I was excited and breathtaking. Interestingly, the “human” shape(人字行) always maintains 110° ” .

“Why do red-crowned cranes choose to use ‘human’ shape when flying in formation?” He continued, “In my opinion, there are four reasons: first, the ‘human’ shape can make red-crowned cranes use increasing air which is produced by each other’s wings when they are swinging in the sky. It can increase the glide time and save physical ability. Second, the ‘human’ shape will enhance communication among the birds. The orders and the relevant information issued by the lead bird can be conveyed to each member in this migratory group unimpeded, accurately, rapidly and conveniently. Third, such a formation will help to find the birds left behind because of feeling run down as fast as possible, so that the young, the weak, the sick birds can get everyone’s help and encouragement. Finally, the ‘human’ shape shows not only beauty but also unity. It can give enemies a deterrent.They will be terrified and did not dare to attack the birds.The migration security of the birds will be ensured.”  

Environmental experts admired and evaluated Christmas bird-watching highly. They pointed out that it made perfect sense. On the one hand it could enhance the human awareness of environmental protection. On the other hand it could provide first-hand information on birds.

49．When did Christmas bird – watching begin?

         A．Sometime during Christmas holiday.         B．At the beginning of 20th century.

         C．In the early 19 th century.          D．Since there was Christmas Day

50．What do bird – watchers do when they are bird – watching?

         A．They kill birds and beasts.          B．They watch birds and beasts.

         C．They watch and count birds.     D．They look at the sky and write diaries.

51．The following are all reasons for red – crowned cranes flying in “human” shape except      .

         A．they can help each other and ensure their safety

         B．they can communicate with each other in order to reduce tiredness.

         C．they can make use of the air produced by each other’s wings.

         D．they can look stronger in case they come across enemies

52．This passage consists of five paragraphs. Please arrange the five main ideas of the paragraphs in order of their appearance in the passage.

    a. How the bird – watchers divided their watching task and what was done.

         b. How Christmas bird – watching came into being.

         c. Christmas bird – watching is of great importance environmentally and scientifically.

         d. A Christmas bird – watcher watched and was amazed by red – crowned cranes.

         e. Red – crowned cranes fly in “human” formation for quite good reasons.

         A．a – b – c – d – e         B．b – c – e – d – a         C．b- a – d – e – c D．b – d – e – a – c

 

Christmas bird – watching is popular in the U.S.A. When the holiday season comes, some Americans are likely to watch and count birds in the sky with great interest every day. This activity began in the early part of the last century. It has a one-hundred-year history. At that time, there was a so-called “holiday hunting” custom. In order to celebrate the holiday, the hunters went out to kill birds and beasts. By 1900, there were 27 bird lovers who decided to count birds instead of killing birds. Since then, Christmas bird-watching was held every year. It has been continued to the present.

There were 42000 people who took part in the bird-watching last Christmas, from December 16 the year before to January 3 next year. They were in the United States and Canada, central America, south America and the Caribbean, watching and counting birds in the sky. The whole viewing area was divided into 1600 points. Each birdwatcher was responsible for 25 meters, and was required to write down the types and quantities of birds within 24 hours.

A birdwatcher described what he had watched vividly in his diary—“ When I looked up, I saw a beautiful ‘landscape’ in the sky: Red-crowned cranes(丹顶鹤) were driving up in cunning wedges that split the air. They were so neatly arranged, coordinating their movements. I was excited and breathtaking. Interestingly, the “human” shape(人字行) always maintains 110° ” .

“Why do red-crowned cranes choose to use ‘human’ shape when flying in formation?” He continued, “In my opinion, there are four reasons: first, the ‘human’ shape can make red-crowned cranes use increasing air which is produced by each other’s wings when they are swinging in the sky. It can increase the glide time and save physical ability. Second, the ‘human’ shape will enhance communication among the birds. The orders and the relevant information issued by the lead bird can be conveyed to each member in this migratory group unimpeded, accurately, rapidly and conveniently. Third, such a formation will help to find the birds left behind because of feeling run down as fast as possible, so that the young, the weak, the sick birds can get everyone’s help and encouragement. Finally, the ‘human’ shape shows not only beauty but also unity. It can give enemies a deterrent.They will be terrified and did not dare to attack the birds.The migration security of the birds will be ensured.”

Environmental experts admired and evaluated Christmas bird-watching highly. They pointed out that it made perfect sense. On the one hand it could enhance the human awareness of environmental protection. On the other hand it could provide first-hand information on birds.

1.When did Christmas bird – watching begin?

       A．Sometime during Christmas holiday.            B．At the beginning of 20th century.

       C．In the early 19 th century.                          D．Since there was Christmas Day

2.What do bird – watchers do when they are bird – watching?

       A．They kill birds and beasts.                          B．They watch birds and beasts.

       C．They watch and count birds.                      D．They look at the sky and write diaries.

3.The following are all reasons for red – crowned cranes flying in “human” shape except      .

       A．they can help each other and ensure their safety

       B．they can communicate with each other in order to reduce tiredness.

       C．they can make use of the air produced by each other’s wings.

       D．they can look stronger in case they come across enemies

4.This passage consists of five paragraphs. Please arrange the five main ideas of the paragraphs in order of their appearance in the passage.

    a. How the bird – watchers divided their watching task and what was done.

       b. How Christmas bird – watching came into being.

       c. Christmas bird – watching is of great importance environmentally and scientifically.

       d. A Christmas bird – watcher watched and was amazed by red – crowned cranes.

       e. Red – crowned cranes fly in “human” formation for quite good reasons.

       A．a – b – c – d – e B．b – c – e – d – a C．b- a – d – e – c   D．b – d – e – a – c

 

       Unusual incidents are being reported across the Arcitc. Inuit(因纽特人)families going off on snowmobiles to prepare their summer hunting camps have found themselves cut off from home by a sea of mud .There are also reports of sea ice breaking up earlier than usual, carrying seals beyond the reach of hunters. Climate change may still be a rather abstract idea to most of us ,but in the Arctic it is already having great effects –if summertime ice continues to shrink at its present rate ,the Arctic Ocean could soon become almost ice-free in summer .The knock –on effects are likely to include more warming, cloudier skies ,and higher sea levels .Scientists are increasingly eager to find out what’s going on in the Arctic.

       For the Inuit the probkm is mgent. They live in unsteady baiance with one of the toughest environments on earth. Climate change, whatever its causes, is a direct danger to their way of life. Nobody knows the Arctic as well as the locals, which is why they are not content simply to stand back and let outsider experts tell them what’s happening. In Canada, where the Inuit people are trying hard to guard their hard-won autonomy in the country’s newest land, Nunavut, they believe their best hope of survival in this changing environment lies in combining their ancestral knowledge with the best of modern science. This is challenge in itself.

       The Canadian Arctic is a vast , treeless polar desert that’s covered with snow for most of the year. Adventure into this area and you get some idea of the hardships facing anyone who calls this home. Farming is out of the question and nature offers few pickings. Humans first settled in the Arctic a mere 4,500 years ago, surviving by taking advantage of sea fist. The environment tested them to the limits: sometimes the settlers were successful, sometimes they failed and disappeared. But around a thousand years ago, one group appeared that was uniquely well adapted to deal with the Arctic environment. These Thule people moved in from Alaska, bringing dogs, iron tools and the like. They are the ancestors of today’s Inuit people.

67．Which of the following is not likely to be the effect of climate change?

       A．Shorter and shorter summertime.

       B．Ice-free summer around th e Arctic.

       C．Higher sea levels.

       D．More dloudy skies.

68．The Inuit people believe the solution to the climate change problem is          .

       A．to change their way of life

       B．to use their ancestral knowledge

       C．to make the best of modem science      

       D．to use their ancestral knowledge and modern science

69．It can be c oncluded from the last paragraph that        .

       A．the first settlers in the Arctic survived by taking advantage of sea fish

       B．it’s hard to farm in the Arctic due to the climate change

       C．the ancestors of Inuit people stood out among the settlers

       D．the Thule people from Alaska invented iron tools

70．Which of the following is the best title of this passage?

       A．Climate change and the Inuit

       B．Climate change around the Arctic

       C．Global warming around the world

       D．The Inuit and their ancestors around the world

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网