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【2011·山东济宁一中模拟】D

“The world’s oceans are slowly getting more acidic.” say scientists. The researchers from California report that the change is taking place in response to higher levels of carbon dioxide in the atmosphere.

The lowering of the waters’ PH value is not great at the moment but could cause a serious threat to current ocean life if it continues, they warn. Ken Caldeira and Michael Wickett, from the Lawrence Livermore National Laboratory, report their concerns in the journal Nature. Increasing use of oil fuels means more carbon dioxide is going into the air, and most of it will eventually be absorbed by seawater. Once in the water, it reacts to form carbonic acid. Scientists believe that the oceans have already become slightly more acidic over the last century.

These researchers have tried to predict what will happen in the future by combining what we know about the history of the oceans with computer models of climate change. “This level of acidity will get much more extreme in the future if we continue releasing CO2 into the atmosphere,” said Dr Caldeira. “And we predict the amount of future acidity will exceed(超过) anything we have seen over the last several hundred million years, let alone perhaps after rare disastrous events such as asteroid(小行星) impacts.

However, it is not absolutely clear what that means for ocean life. Most organisms live near the surface, where the greatest pH change would be expected to occur, but deep-ocean life forms may be more sensitive to pH changes. Coral reefs(珊瑚礁) and other organisms whose shells contain calcium carbonate(碳酸钙) may be particularly affected if the water’s acidity levels keep going up, the team predict. They could find it much more difficult to build these structures in water with a lower pH.

In recent years some people have suggested storing carbon dioxide from power station in the deep ocean as a way of dealing with global warming. But Dr Caldeira said that such a strategy should now be re-considered. “Previously, most experts had looked at ocean absorption of carbon dioxide as a good thing --- because in releasing CO2 into the atmosphere we warm the planet, and when CO2 is absorbed by the ocean, it reduces the amount of greenhouse warming.”

71.The ocean is becoming more acidic due to __________.

       A.the lower water pH value                      B.the warming atmosphere

       C.the higher level of CO2 in the air           D.the increasing use of oil fuels

72.According to Dr Caldeira, __________.

       A.ocean absorption of carbon dioxide is a good thing

       B.more oil fuels will be used in the near future

       C.scientists may predict climate changes with computer models

       D.the future situation of the amount of acidity is extremely serious

73.If the water’s acidity level keeps rising, __________.

       A.ocean life whose structures contain calcium carbonate may be affected

       B.the waters’ pH value will become higher and higher

       C.organisms living near the surface are more sensitive to pH changes

       D.some disastrous events will occur more often than before

74.Most experts once believed storing carbon dioxide in the ocean would reduce __________.

       A.the CO2 absorbed by the ocean             B.the amount of greenhouse warming

       C.the acidity of the ocean                        D.the gradual release of CO2

75.The purpose of this passage is to __________.

       A.show people the findings of a research team    

B.inform people of how acid the ocean is now

       C.introduce Dr Caldeira and his team’s research   

D.warn people of the higher level of CO2

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科目:高中英语 来源: 题型:阅读理解

【2011·山东济宁一中模拟】A

A good friend of mine was complaining about her son the other day.“Did you notice,” she started, “how he didn’t wait for me to get my salad before he dove into his?”

       True enough, the boy attacked his plate faster than a cat in the wild.Without manners, we’re no more than animals.Actually, that’s not true.I’ve been watching and feeding a group of wild cats, and they show unusual politeness toward each other.Even when food is scarce, they take turns, leaving at least a small part for the next in line.

       My mother educated her three children to have good manners all the time.We were made to feel very uncomfortable as if we were sitting on pins and needles until we got used to saying please, thank you, pardon me, and I’m sorry.And I have to say, while it was a painful learning experience, it was one of the most valuable expericeces.

       I can’t tell you how often I sat with my friends, eating at their dinner tables, and their parents thought highly of my good manners.While it was a little embarrassing, I knew even then that my mother’s teachings were paying off.

       Many years later, when I was attending seminars across the country, my manners were quite useful.

       While I regret that I haven’t been a perfect example, I’m still working on it.I suppose, in this regard, my mother lives on through me.I didn’t have her beautiful singing voice or her green eyes, but she did make sure I received one of her finest characteristics.

56.What did the writer’s friend most probably complain about?

       A.Her son’s eating too quickly.          B.Her son’s not having a healthy diet.

       C.Her son’s not having good table manners.D.Teenagers’ not having good manners.

57.The underlined word “scarce” in Paragraph 2 probably means “________”.

       A.too much                                             B.not delicious       

       C.not enough                                     D.quite hot

58.We learn that the writer’s mother __________.

       A.was strict about her children’s manners   B.never punished her children

       C.had beautiful blue eyes                D.was not good at singing

59.What does the writer think of her experience of learning good manners?

       A.Easy and relaxing.                      B.Painful and valuable.

       C.Easy but useless.                              D.Too horrible.

60.We can infer from the passage that the writer _________.

       A.is surely liked by everyone around her

       B.is not satisfied with most people’s manners around her

       C.thinks she has been a perfect example to the young

       D.thanks her mother for teaching her the good manners a lot

  

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科目:高中英语 来源: 题型:阅读理解

【2011·山东济宁一中模拟】B

For centuries, the body’s blood has been linked closely with the emotions.People who show no human emotions or feelings, are said to be cold-blooded killer.For example, the police are searching for a cold-blooded killer.He seems to kill for no reason, and no emotion, as if taking someone’s life as nothing.

       Cold can affect other parts of the body.The expression “get cold feet” has nothing to do with cold or your feet.The expression means being afraid to do something you have decided to do.For example, you agree to be president of an organization.But then you learn that all the other officers have resigned, and all the work of the organization will be your responsibility.You are likely to get cold feet about being president when you understand the situation.

       The expression “give someone the cold shoulder” probably comes from the physical act of turning your back toward someone, instead of speaking to him face to face.You may give a cold shoulder to a friend who has not kept a promise he made to you.Or, to someone who has lied about you to others.

       A cold fish is not a fish.It is a person.But it is a person who is unfriendly, unemotional and shows no love or warmth.A cold fish does not offer much of himself to anyone.Someone who is a cold fish could be cold-hearted.Now a cold-hearted person is someone who has no sympathy.Several popular songs in recent years were about cold-hearted men or cold-hearted women who, without feelings, broke the hearts of their lovers.

       Out in the cold means not getting something that everybody else got.A person might say that everybody but him got a pay raise---he was left out in the cold.And it is not a pleasant place to be.

61.There are _________ expressions related to cold that are mentioned in the passage.

       A.3           B.4                   C.6                   D.7

62.When you refuse to speak to a man and treat him in a distant way, you may express by “_________”.

       A.I give him the cold shoulder         B.I think he is a cold-blooded man

       C.I think he is a cold fish             D.I’m likely to get cold feet

63.If Sue shows absolutely no reaction to those awful pictures of starving children in Africa, you will say _________.

       A.she is a cold-blooded killer    B.she gets cold feet

       C.she is a cold fish            D.she is out in the cold

64.We can use the expression “__________” to describe a man who abandons or hurts his lover without mercy.

       A.cold-blooded             B.cold shoulder

       C.cold feet            D.cold-hearted

65.The topic of this passage is about _________.

       A.the relationship between cold and our body

       B.some expressions about friendship

       C.some expressions connected with cold

       D.how cold weather comes into being

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