网址:http://m.1010jiajiao.com/timu3_id_3051840[举报]
The UN Environment Programme says that rising temperatures could mean the end for some migrating animals.
Migrating or mobile animals move through several environments as they travel away from the cold of winter to warmer areas. Birds may fly from one part of the World to another, perhaps stopping at feeding grounds on the way. Whales and turtles(海龟) cover vast areas of ocean. The report says that changes in any one of the places which these animals use can cause serious harm. "Obviously these animals have developed their travelling patterns over thousands of years. But climate change is almost certain to be extreme over the next 25 to 50 years and it is extremely unlikely that these animals can change their habits fast enough, "said the report author Dr. Robert Hepworth.
Hardest hit by rising temperatures are turtles. Scientists have found that at higher temperatures, turtles produce far more female eggs than male ones. In parts of Malaysia, turtle birthing sites are producing only females, the report says. It also provides evidence that some turtles are more likely to develop cancer as the waters get warmer.
With birds, the main problem is climate-related damage to important areas at either end of the travels or at resting places along the way. About one-fifth of migrating birds are now in danger because of climate-related changes including rising sea levels, land loss and more violent storms, the report concludes.
Other animals picked out as particularly in danger include:
the North Atlantic Right Whale, whose main food (tiny shrimp) is disturbed by the change in ocean flows.
·the White-Nose Dolphin, which is out-competed by other kinds of dolphins in warmer waters.
The report is not all bad news. Even with major climatic changes, protecting the environment can still help mobile animals to recover. "We need governments to start taking action at the national and international level. The clock is running," said Dr. Hepworth. And some animals are already adapting, with the report mentioning whales that are changing their feeding behaviour, finding new feeding grounds and new foods to eat.
1. What is the main topic of the text ?
A.The effect of climate change on migrating animals.
B.How animals are adapting to changes in temperature.
C.The actions required to save migrating animals.
D.The need for government policies to prevent global warming.
2.By saying "The clock is running" in the last paragraph, Dr. Hepworth means that" ______"
A.it may be too late to save some animals
B.it is time to start protecting the animals
C.there is not much time to solve the problem
D.it takes time to complete the actions
A.They will only produce female babies.
3.WhVich of the following is mentioned as a consequence of rising temperatures?
A.More storms will affect the ability of whales to find their feeding grounds.
B.20 percent of all birds are likely to die out because of land loss.
C.Migrating animals are likely to start adapting to the changes more quickly.
D.Warmer oceans will increase the competition between different kinds of dolphins.
4.What can be inferred about turtles from the text?
A.They are the only animals besides humans
that suffer from cancer.
B.They have traditionally lived longer than other ocean-based animals.
C.Those born nearer a hotter area are more likely to be female.
D.Most kinds of turtles are likely to die out within 50 years.
查看习题详情和答案>>
The deserts of the world are not all covered with sand. Many of them have surfaces of rock or clay or small stones. They are not flat, either. They often have high hills and deep valleys. There is some plants’ life in many parts of the desert. There is little rain in the desert, but it does fall often enough for most plants.
The deserts of the world are not uninhabited(not lived by people). People also live outside oases(绿洲), but these people are not farmers. They have camels, goats, donkeys, sheep, etc. These animals can live on the desert plants and do not need much water.
The people of the desert have to move constantly from place to place, they must always look for grass or desert plants for their animals. They usually live in tents. When there is no more food for their animals, they fold up their tents, pat them on their camels and donkeys, and move to another place. In good years, when there is enough food for their animals, they trade their skins and their goats and camel hairs with the people of oases for wheat and fruit. But in bad years, when there is not enough food for their animals, the people of the desert would attack the oases people. But they are also hospitable, no man in the desert would ever refuse to give a stranger food and water.
According to the passage, deserts are mostly made up of _______.
A. clay B. rock C. sand D. stones
The underlined word “hospitable” has the meaning of being _______.
A. brave B. cruel C. strange D. kind
In the desert _______.
A. it rains in spring only
B. it rains for a short time every month
C. there is some rain, but far from enough
D. the rainfall is just enough for the plants
People live _______.
A. only inside the oases B. only outside the oases
C. both inside and outside the oases D. in places with regular rainfalls
From the passage we know that life _______.
A. is hard in deserts B. is happy in deserts
C. is impossible in deserts D. in deserts is much better now
查看习题详情和答案>>完型填空(共10小题,每小题1分, 满分10分,每空填一个词)
Man has a big brain (脑) . He can think, learn and speak. Scientists once thought that man was different from animals 1. they can think and learn. They know now that dogs, monkeys, birds can learn, too.
They are beginning to understand that men are different from animals because they can speak. Animals can’t speak. They make noises when they are afraid, or unhappy. Apes (类人猿) can understand some things more quickly 2. man. One or two of them have learned 3. words. But they can not join words to 4. sentences. They can not think 5. us because they have 6. language. Language is a wonderful thing. Man has been able to build a modern world because he has language. 7. child can speak his own language very well when he is four or five, 8. no animals learn to speak. 9. do children learn it? Scientists don’t really know. 10. happens inside our body when we speak? They don’t know. They only know that man can speak because he has a brain.
查看习题详情和答案>>
A growing number of health, hunger, and sustainable (可持续的)agriculture groups today announced plans for Food Day-a nationwide campaign to change the way Americans eat and think about food.Food Day will encourage people around the country to sponsor or participate in activities that encourage Americans to “eat real” and support healthy, affordable food grown in a sustainable, humane way.
Organizers hope Food Day will inspire Americans to hold thousands of events in schools, college campuses, houses of worship and even in private homes aimed at fixing America’s food system.A Food Day event could be as small as a parent organizing a vegetable identification contest at a kindergarten class-or as massive as a rally(集会)in a city park, with entertainment and healthy food.Health departments, city councils and other policy makers could use Food Day to launch campaigns, hold hearings, or otherwise address communities food problems.
The campaign will advocate progress toward five central goals:
·Reducing diet-related disease by promoting healthy foods.The American diet is too low in fruits, vegetables, and whole grains and too high in fatty meat, soft drinks and salty packaged and restaurant foods-contributing to hundreds of thousands of premature deaths each year.
·Supporting sustainable farms and stopping subsidies to agribusiness.Billions of federal
dollars a year would be better spent helping environmentally conscious family farmers than
hugeagribusiness operations.
·Expanding access to food and alleviating hunger.Far too many Americans don’t know where their next meal is coming from, or have access to fresh produce in their neighborhood.
·Reforming factory farms to protect animals and the environment.Farming of animals can and should be done without cruelty, and without degrading the quality of life.
·Curbing junk-food marketing to kids.Food companies should not be targeting children with foods that promote tooth decay, obesity and other health problems.
1.What is the best title of the text?
|
A.Food Day Campaign |
B.Eat Real and Keep fit |
|
C.How to Observe Food Day |
D.Food Problems in the USA |
2.What can we learn from Paragraph 2?
|
A.Food problems are not easy to deal with. |
|
B.Food Day events should be held in public places. |
|
C.Kindergarten kids are unable to identify vegetables. |
|
D.People are invited to create their own Food Day events. |
3.One of the aims of Food Day is to ____.
|
A.target children with junk food |
B.operate more agribusiness |
|
C.increase access to food |
D.cancel a series of events |
4.The underlined word "curbing" in the last paragraph is closest in meaning to “ ”.
|
A.controlling |
B.enlarging |
C.evaluating |
D.providing |
5.We can infer from the text that _____.
|
A.Food Day will not help preserve natural resources. |
|
B.Food Day can be an opportunity to solve food problems. |
|
C.Food Day has so far achieved all the central goals. |
|
D.there are different ideas and views about Food Day. |
查看习题详情和答案>>
From the moment that an animal is born it has to make decisions . It has to decide which of the things around it are for eating , and which are to be avoided ; when to attack and when to run away . The animal is , in fact , playing a very dangerous game with its environment , a game in which it must make decision―a matter of life or death .
Animals’ ability to act reasonably is believed to come partly from what we may call “genetic (遗传性的)learning” , which is different from the individual (个体的) learning that an animal does in the course of its own lifetime . Genetic learning is learning by a species ―animals of the same kind―as a whole , and it is achieved by selection of those members of each generation that happen to act in the right way . However , the role of genetic learning depends upon how similar the future environment is to the past . The more important individual experience is likely to be , the less important is genetic learning as a means of getting over the problems of the survival game . Because most animals live in ever changing evironments from one generation to the next , it is not surprising to find that very few species indeed depend wholly upon genetic learning .
In the great majority of animals , their particular ways of acting in a new environment are a compound (复合体) of individual experience added to the action patterns animals are born with .That is why animals can survive .
72.The animal’s life will come to an end .
A.if the animal makes a wrong decision B.if the animal plays a dangerous game
C.when the animal attacks its enemy D.when the animal runs too slowly
73.Very few species depend entirely on genetic learning because .
A.each generation has its own way of learning
B.their environments change all the time
C.they can act reasonably on their own
D.it takes their whole life to learn
74.When the environment doesn’t change much , .
A.animals cannot act in a right way
B.genetic learning is less important for animals
C.individual learning plays a less important role
D.animals cannot get over problems on their on their own
75.Animals’ living on generation after generation depends on .
A.their natural action pattern with their own experience
B.the lessons they have learnt during their lifetime
C.their experience in particular environments
D.the knowledge passed on by their parents
查看习题详情和答案>>