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TV is so often a parent"s good Mend, keeping kids happily occupied so the grownups can cook dinner, answer the phone, or take a shower. But【C1】______that electronic babysitter is not an educational【C2】______According to a recent research, babies who watch TV are more likely to have【C3】______cognitive development and language at 14 months,【C4】______if they"re watching programs【C5】______for adults and older children. It"s surprising that TV-watching made a【C6】______at such a tender age. This new study【C7】______259 lower-income families in New York, most of whom spoke Spanish as their【C8】______language at home. Other studies examining higher-income families have come to the【C9】______conclusion: TV watching not only isn"t educational, but it seems to【C10】______babies" development. Babies who watched 60 minutes of TV daily had developmental【C11】______one-third lower at 14 months than babies who weren"t watching that much TV. The【C12】______may be due to the fact that when kids and parents are watching TV, they"re【C13】______talking, playing, and interactions that are【C14】______to learning and development. But what about "【C15】______" TV, like Sesame Street The researchers didn"t find any pluses or minuses when【C16】______to non-educational programs designed for small children, like Sponge-Bob SquarePants.【C17】______research by some of the same scientists has found that parents whose children watch non-educational TV programs like SpongeBob SquarePants spend【C18】______time reading to their children or teaching them. The latest study of educational TV programs like Sesame Street adds more【C19】______to a recommendation from the American Academy of Pediatrics that babies under age【C20】______watch no TV at all. 【C17】

A. Further
B. Later
C. Recent
D. Earlier

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Global warming is already cutting substantially into potential crop yields in some countries—to such an extent that it may be a factor in the food price【C1】______that have caused worldwide stress in recent years, researchers suggest in a new study. Wheat yields in recent years were down by more than 10 percent in Russia and by a few percentage points【C2】______in India, France and China compared with【C3】______they probably would have been without rising【C4】______, according to the study. Corn yields were【C5】______a few percentage points in China, Brazil and France from what would have been【C6】______said the researchers, whose findings were published in Friday"s【C7】______of the journal Science. Some countries saw small gains from the temperature increases, however. And in all countries, the【C8】______carbon dioxide that humans are【C9】______into the air acted as a【C10】______that encouraged plant growth,【C11】______some of the losses from rising temperatures caused by that same greenhouse gas. 【C12】______, the study"s authors found that when the gains in some countries were weighed【C13】______the losses in other countries, the overall global【C14】______of climate change has been small so far losses of a few percentage points for wheat and corn from what they would have been【C15】______climate change. The general impact on production of rice and soybeans was【C16】______, with gains in some regions entirely counterbalancing losses in others. 【C17】______the authors of the study pointed out that temperature increases were expected to【C18】______in coming decades, making it likely that the challenges【C19】______food production will grow in a era when demand is expected to【C20】______sharply. 【C19】

A. to
B. of
C. from
D. for

Global warming is already cutting substantially into potential crop yields in some countries—to such an extent that it may be a factor in the food price【C1】______that have caused worldwide stress in recent years, researchers suggest in a new study. Wheat yields in recent years were down by more than 10 percent in Russia and by a few percentage points【C2】______in India, France and China compared with【C3】______they probably would have been without rising【C4】______, according to the study. Corn yields were【C5】______a few percentage points in China, Brazil and France from what would have been【C6】______said the researchers, whose findings were published in Friday"s【C7】______of the journal Science. Some countries saw small gains from the temperature increases, however. And in all countries, the【C8】______carbon dioxide that humans are【C9】______into the air acted as a【C10】______that encouraged plant growth,【C11】______some of the losses from rising temperatures caused by that same greenhouse gas. 【C12】______, the study"s authors found that when the gains in some countries were weighed【C13】______the losses in other countries, the overall global【C14】______of climate change has been small so far losses of a few percentage points for wheat and corn from what they would have been【C15】______climate change. The general impact on production of rice and soybeans was【C16】______, with gains in some regions entirely counterbalancing losses in others. 【C17】______the authors of the study pointed out that temperature increases were expected to【C18】______in coming decades, making it likely that the challenges【C19】______food production will grow in a era when demand is expected to【C20】______sharply. 【C13】

A. on
B. against
C. down
D. in with

TV is so often a parent"s good Mend, keeping kids happily occupied so the grownups can cook dinner, answer the phone, or take a shower. But【C1】______that electronic babysitter is not an educational【C2】______According to a recent research, babies who watch TV are more likely to have【C3】______cognitive development and language at 14 months,【C4】______if they"re watching programs【C5】______for adults and older children. It"s surprising that TV-watching made a【C6】______at such a tender age. This new study【C7】______259 lower-income families in New York, most of whom spoke Spanish as their【C8】______language at home. Other studies examining higher-income families have come to the【C9】______conclusion: TV watching not only isn"t educational, but it seems to【C10】______babies" development. Babies who watched 60 minutes of TV daily had developmental【C11】______one-third lower at 14 months than babies who weren"t watching that much TV. The【C12】______may be due to the fact that when kids and parents are watching TV, they"re【C13】______talking, playing, and interactions that are【C14】______to learning and development. But what about "【C15】______" TV, like Sesame Street The researchers didn"t find any pluses or minuses when【C16】______to non-educational programs designed for small children, like Sponge-Bob SquarePants.【C17】______research by some of the same scientists has found that parents whose children watch non-educational TV programs like SpongeBob SquarePants spend【C18】______time reading to their children or teaching them. The latest study of educational TV programs like Sesame Street adds more【C19】______to a recommendation from the American Academy of Pediatrics that babies under age【C20】______watch no TV at all. 【C19】

A. fuel
B. oil
C. coal
D. wood

Global warming is already cutting substantially into potential crop yields in some countries—to such an extent that it may be a factor in the food price【C1】______that have caused worldwide stress in recent years, researchers suggest in a new study. Wheat yields in recent years were down by more than 10 percent in Russia and by a few percentage points【C2】______in India, France and China compared with【C3】______they probably would have been without rising【C4】______, according to the study. Corn yields were【C5】______a few percentage points in China, Brazil and France from what would have been【C6】______said the researchers, whose findings were published in Friday"s【C7】______of the journal Science. Some countries saw small gains from the temperature increases, however. And in all countries, the【C8】______carbon dioxide that humans are【C9】______into the air acted as a【C10】______that encouraged plant growth,【C11】______some of the losses from rising temperatures caused by that same greenhouse gas. 【C12】______, the study"s authors found that when the gains in some countries were weighed【C13】______the losses in other countries, the overall global【C14】______of climate change has been small so far losses of a few percentage points for wheat and corn from what they would have been【C15】______climate change. The general impact on production of rice and soybeans was【C16】______, with gains in some regions entirely counterbalancing losses in others. 【C17】______the authors of the study pointed out that temperature increases were expected to【C18】______in coming decades, making it likely that the challenges【C19】______food production will grow in a era when demand is expected to【C20】______sharply. 【C18】

A. cease
B. aggravate
C. stop
D. accelerate

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