题目内容

    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 traveling 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 products far more female eggs than male ones. In parts of Malaysia, turtle birthing sites are producing only females, the report says. It also tells us 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 storms, the report concludes.

Other animals picked out as particularly in danger include: the North Atlantic Right Whale, whose main food(tiny fishes ) is disturbed by the change in ocean flows and the White Nose Dolphin, which is out competed by other kinds of dolphins in warmers 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 stark 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 behaviors, finding new feeding grounds and new foods to eat.

 

57.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.

58.According to the report , how will global warming affect turtles in the future?

A.They will only produce female babies

B.Their food supply will gradually disappear.

C.Some will suffer from higher rates of cancer.

D.They will be in greater danger because of more strong storms.

59.Which of the following is mentioned as a result of rising temperatures?

A.More storms will affect the ability of whales to find their feeding grounds.

B.20 percent of all 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.

60.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.

练习册系列答案
相关题目

    Stress caused by a slowing economy,shrinking retirement accounts(退休津)and rising unemployment rates is driving some American smokers to increase the habit or delay quitting,according to a new survey.

    A quarter of smokers who are worried about the economy said fretting over it has driven them to smoke more each day,while another 13 percent said they have delayed quitting.

“The turbulent(动荡的)global stock markets have caused virtually every American a certain level of stress.Those who also struggle with an addiction to tobacco products are at an increased disadvantage.Quitting smoking under normal circumstances  is one of the most difficult things you can do.”Cheryl Healton,the president and CEO of the American Legacy Foundation,said in a statement.

     The Washington.D.C.-based anti-smoking advocacy group commissioned(委托) Harris Interactive to conduct the online poll of 2,375 Americans l 8 years old and older.Women smokers were more likely to smoke more due to worries about the economy,with 3l percent reporting they did.compared to 17 percent of men.

    A higher percentage(38 percent)of lower―income smokers―those with a household income of $ 35,000 or less--reported that they smoke more cigarettes per day due to the economy,the survey showed.

    Unemployed smokers were also more likely to boost smoking due to the financial crisis,with 29 percent smoke more compared to 17 percent of employed smokers.Former smokers are also not immune to the trend.The survey showed that seven percent of current smokers said their anxiety about the economy had driven them to start smoking again.while nine percent of former smokers were tempted to resume(重新开始)the habit.

    But hard times have also encouraged smokers to be more thrifty.One fifth of smokers who ore stressed about the economy said they switched to a cheaper brand to save money.

 

49.What is the main idea about this new survey?

      A.Smoking does great harm to our health

      B.American economy has slipped into decline

      C.The rate of American unemployment is rising

      D.Hard times prompt American to increase smoking

50.Which of the following is true according to this survey?

      A.9 percent of former smokers have started smoking again.

      B.20 percent of women smokers have lowered their cigarette brand.

      C.38 percent of lower.income smokers smoke more cigarettes per day

      D.31 percent of smokers ore worried about being out of work

51.The underlined words“thrifty”in the last paragraph probably means       

      A.confident                                                B.using money carefully and wisely

      C.generous                                                D.diligent

52.From this passage we can infer that           

  A.American people are anxious about the increasing number of smokers

  B.The retirement accounts of American people are getting smaller

  C.The government will encourage cigarette growth to meet the rising needs

  D.The go-slow in American economic growth has affected their living

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