E

Babies are not just passing idle time when they stare goggle-eyed at the television—they are actually learning about the world, U.S. researchers said. Parents may want t limit what their babies see on television , based on the study, said Donna Mumme, assistant professor of psychology at Tufts University in Boston, who led the research. “Children as young as 12 months are making decisions based n the emotional(情感的)reactions of adults around them,” Mumme said in a statement. “It turns out they can also use emotional information they pick up from television. This means that adults might want to think twice before they speak in a loud and harsh voice or let a baby see television programs meant for information about the world. A mother urging her baby to eat some  “yummy” soup on a brother crying in fear when a dog approaches can influence a baby’s reaction. Mumme’s team tested babies to determine. If television has the same influence, showing actors reacting on a videotape to objects such as red spiral letter holder, a blue humpy ball, and a yellow garden hose attachment. Babies aged 10 months or 12 months were later given the same objects to play with. Ten-month-olds did not seem to e influenced by the video buy the 1-year-olds were. When the actors acted neutrally or positively to an object, the babies happily played with them. But if the actor had seemed afraid or disgusted, the babies would avoid the object.
72．Psychology is the study of             .
A．human’s society and its growth
B．human’s hopes had dreams
C．human’s mind and behaviors
D．human’s languages and cultures
73．Which of the following is Mumme’s conclusion?
A．Small babies should not be allowed to watch television programs.
B．Adults need to think twice before they act in front of small babies.
C．TV programs provide small babies with all the information they need.
D．One-year-olds can be emotionally influenced by TV programs.
74．Mumme reached his conclusion by            .
A．measuring the time babies spent in front of TV.
B．making TV programs and advertisements for kids.
C．showing actors how to react to blue bumpy balls
D．observing small babies’ reactions to TV programs
75．Which of the following may the study lead to according to the researchers?
A．Parents may want to limit what their babies see on television.
B．Actors may try to behave themselves well in front of babies.
C．Babies may be allowed to choose what they see on TV.
D．Scientists may stop ignoring babies’ emotional world.

Plants are flowering faster than scientists predict in reaction to climate change, which could have long damaging effects on food chains and ecosystems.

“Global warming is having a great effect on hundreds of plant and animal species around the world, changing some living patterns.” scientists say.

Increased carbon dioxide (CO2) in the air from burning coal and oil can have an effect on how plants produce oxygen, while higher temperatures and changeable rainfall patterns can change their patterns of growth.

“Predicting species’ reaction to climate change is a major challenge in ecology,” said the researchers of several U.S. Universities. They said plants had been the key object of study because their reaction to climate change could have an effect on food chains and ecosystem services.

The study, published on the Nature website, uses the findings from plant life cycle studies and experiments across four continents and 1,634 species. It found that some experiments had underestimated the speed of flowering by 8.5 times and leafing by 4 times.

“Across all species, the experiments underestimated the speed of the advance—for both leafing and flowering—that results from temperature increases,” the study said.

“The design of future experiments may need to be improved to better predict how plants will react to climate change,” it said.

Plants are necessary for life on the Earth. They are the base of the food chain, using photosynthesis (光合作用) to produce sugar from carbon dioxide and water. They let out oxygen which is needed by nearly every organism on the planet.

Scientists believe the world’s average temperature has risen by about 0.8 ℃ since 1900, and nearly 0.2 ℃ every ten years since 1979.

So far, efforts to cut emissions of planet-warming greenhouse gases are not seen as enough to prevent the Earth heating up beyond 2 ℃ this century—a point scientists say will bring the danger of a changeable climate in which weather extremes are common, leading to drought, floods, crop failures and rising sea levels.

1.What is the key information the author wants to give in Paragraph 1?

A. The increasing speed of flowering is beyond scientists’ expectation.

B. Climate change leads to the change of food production patterns.

C. Plants’ reaction to weather could have damaging effects on ecosystem.   

D. Food chains have been seriously damaged because of weather.

2.We can learn from the study published on the Nature website that _____.    

A. scientists should improve the design of the experiments

B. plants’ flowering is 8.5 times faster than leafing

C. there are 1,634 plant species on the four continents

D. the experiments failed to predict how plants react to climate change

3.Scientists pay special attention to the study of plants because _____.     

A. they can prove the climate change clearly

B. they are very important in the food chains

C. they play a leading role in reducing global warming

D. they are growing and flowering much faster than before

4.What can be inferred from the last two paragraphs about the world’s temperature?    

A. It has risen nearly 0.2 ℃ since 1979.

B. It is 0.8 ℃ higher in 1979 than that of 1990. 

C. It needs to be controlled within 2 ℃ in this century.

D. Its change will lead to weather extremes.

 

 

E

Babies are not just passing idle time when they stare goggle-eyed at the television—they are actually learning about the world, U.S. researchers said. Parents may want t limit what their babies see on television , based on the study, said Donna Mumme, assistant professor of psychology at Tufts University in Boston, who led the research. “Children as young as 12 months are making decisions based n the emotional(情感的)reactions of adults around them,” Mumme said in a statement. “It turns out they can also use emotional information they pick up from television. This means that adults might want to think twice before they speak in a loud and harsh voice or let a baby see television programs meant for information about the world. A mother urging her baby to eat some  “yummy” soup on a brother crying in fear when a dog approaches can influence a baby’s reaction. Mumme’s team tested babies to determine. If television has the same influence, showing actors reacting on a videotape to objects such as red spiral letter holder, a blue humpy ball, and a yellow garden hose attachment. Babies aged 10 months or 12 months were later given the same objects to play with. Ten-month-olds did not seem to e influenced by the video buy the 1-year-olds were. When the actors acted neutrally or positively to an object, the babies happily played with them. But if the actor had seemed afraid or disgusted, the babies would avoid the object.

72．Psychology is the study of             .

A．human’s society and its growth

B．human’s hopes had dreams

C．human’s mind and behaviors

D．human’s languages and cultures

73．Which of the following is Mumme’s conclusion?

A．Small babies should not be allowed to watch television programs.

B．Adults need to think twice before they act in front of small babies.

C．TV programs provide small babies with all the information they need.

D．One-year-olds can be emotionally influenced by TV programs.

74．Mumme reached his conclusion by            .

A．measuring the time babies spent in front of TV.

B．making TV programs and advertisements for kids.

C．showing actors how to react to blue bumpy balls

D．observing small babies’ reactions to TV programs

75．Which of the following may the study lead to according to the researchers?

A．Parents may want to limit what their babies see on television.

B．Actors may try to behave themselves well in front of babies.

C．Babies may be allowed to choose what they see on TV.

D．Scientists may stop ignoring babies’ emotional world.

 

Plants are flowering faster than scientists predicted（预测）in reaction to climate change, which could have long damaging effects on food chains and ecosystems.
Global warming is having a great effect on hundreds of plant and animal species around the world, changing some living patterns, scientists say.
Increased carbon dioxide（CO2）in the air from burning coal and oil can have an effect on how plants produce oxygen, while higher temperatures and changeable rainfall patterns can change their patterns of growth.
“Predicting species’ reaction to climate change is a major challenge in ecology,” said the researches of several U.S. universities. They said plants had been the key object of study because their reaction to climate change could have an effect on food chains and ecosystem services.
The study, published on the Nature website, uses the findings from plant life cycle studies and experiments across four continents and 1,634 species. It found that some experiments had underestimated（低估）the speed of flowering by 8.5 times and leafing by 4 times.
“Across all species, the experiments under-predicted the speed of the advance — for both leafing and flowering — that results from temperature increases,” the study said.
The design of future experiments may need to be improved to better predict how plants will react to climate change, it said.
Plants are necessary for life on the Earth. They are the base of the food chain, using photosynthesis（光合作用）to produce sugar from carbon dioxide and water. They let out oxygen which is needed by nearly every organism on the planet.
Scientists believe the world’s average temperature has risen by about 0.8℃ since 1900, and nearly 0.2℃ every ten years since 1979.
So far, efforts to cut emissions（排放）of planet-warming greenhouse gases are not seen as enough to prevent the Earth heating up beyond 2℃ this century — a point scientists say will bring the danger of a changeable climate in which weather extremes are common, leading to drought, floods, crop failures and rising sea levels.
【小题1】What is the key information the author wants to give in Paragraph 1?

A．Plants’ reaction to weather could have damaging effects on ecosystem.

B．The increasing speed of flowering is beyond scientists’ expectation.

C．Climate change leads to the change of food production patterns.

D．Food chains have been seriously damaged because of weather.

【小题2】We can learn from the study published on the Nature website that ______.

A．plants’ flowering is 8.5 times faster than leafing

B．there are 1,634 plant species on the four continents

C．scientists should improve the design of the experiments

D．the experiments failed to predict how plants react to climate change

【小题3】Scientists pay special attention to the study of plants because _______.

A．they can prove the climate change clearly

B．they are very important in the food chains

C．they play a leading role in reducing global warming

D．they are growing and flowering much faster than before

【小题4】What can be inferred from the last two paragraphs about the world’s temperature?

A．It has risen nearly 0.2℃ since 1979.

B．Its change will lead to weather extremes.

C．It is 0.8℃ higher in 1979 than that of 1990.

D．It needs to be controlled within 2℃ in this century.

WASHINGTON, March 14 (Xinhua) —U.S. President Barack Obama confirmed on Saturday at the White House that China can have confidence in the American economy.

  “Not just the Chinese government, but every investor can have absolute confidence in the soundness of investments in the United States,” Obama said.

   “There is a reason why even in the midst of this economic downfall you have seen actual increases in investment flows here in the U. S.,”he said.

   Obama also noted the U. S. will push for stricter regulation of the financial industry “front and center” at the upcoming Group of 20 Summit (峰会) in London ,ending an argument between the Europe and the United States over whether more focus should be placed on financial regulatory reform.

   Chinese Premier Wen Jiabao said earlier Friady he is “a little bit worried ”about the safety of Chinese assets (财产) in the United States ,urging the U. S. government to ensure the security of those assets.

   China has invested its huge foreign exchange reserves (外汇储备) in low-risk but low-yield assets ,such as U. S.government bonds (政府债券) ,to play it safe . According to the U.S. Treasury, China held 681.9 billion U.S. dollars  worth of U.S. government bonds as of November.

   “China is indeed the largest creditor of the United States, which is the world’ s biggest economy .We are extremely interested in developments in the U. S. economy.”said Wen, adding that he is expecting the effect of the measures taken by the U.S.government to counter the global financial crisis.

   Asked to react to Wen’ s concern, Lawrence Summers, director of the U.S. National Economic Council, noted on Friday that the U.S. will be sound steward (管家)of the money it invests.

   “This is a commitment that the president has made very clear—we need to be sound stewards of the money we invest.”said Summers in a speech at the Brookings Institution, a leading think tank in the united states.

Which of the following statements is NOT true according to the passage?

Chinese Premier Wen Jiabao expressed his worry about the huge fund to the United States.

Obama claimed that China can have confidence in the American economy.

Obama said that the U. S. would be “sound stewards of the money we invest.”

The U. S. will push for stricter regulation of the financial industry.

It can most likely be inferred from the passage that           .

  A. the U. S. is now having great difficulty improving the economy.

  B. China will have confidence in Obama forever according to Wen’s speech

  C. China held 681.9 billion U.S. dollars worth of U.S.government bonds as of November

  D. China will do its best to help the U.S. overcome the global financial crisis.

Chinese Premier Wen Jiabao said earlier Friday he is “a little bit worried”, because        .

  A. he doesn’t have confidence in America’ s economy at all

  B. China lent a huge fund to the United States

  C. he is concerned about the security of China’s assets in the U. S.

  D. the U.S. refused to ensure the security of China’s assets

The underlined word “soundness” in the second paragraph can be replaced by “       ”

  A. loudness          B. safety       C. richness         D. friendship