问题 选择题

下表反映了世界主要发达国家能源强度对比情况(能源强度:一次能源供应总量与国内生产总值的比率。电力强度:单位产值所消耗的电能,它反映了经济增长率与电力消费之间的关系),据此回答(1)~(3)题。

 人均能耗

吨油当量

能源强度

吨油当量/1000美元

电力强度

千瓦时/美元

美国8.960.270.36
英国4.240.180.24
法国4.370.170.27
德国4.290.160.23
意大利3.500.170.23
日本4.310.130.22
(1)日本的能源强度和电力强度在主要发达国家中都是最低的,这说明(   )

A.日本经济增长率最快

B.日本是世界上能源使用效率最高的国家

C.日本一次能源的需求量是最大的

D.日本是世界上能源使用效率最低的国家

(2)美国人均能源消费量是最高的,从生态的角度考虑(   )

A.缓解了全球气候变暖的趋势  B.加重了全球气候变暖的趋势

C.缓解了对臭氧层的破坏       D.加重了对臭氧层的破坏

(3)日本的能源强度与电力强度值对我国的启示是(   )

A.广开能源进口渠道   B.改进技术,提高能源的利用率

C.改变能源消费结构    D.节约能源,加强能源储备

答案

:(1) B     (2) B      (3)B

(1)能源强度和电力强度是反映能源利用效率的指标,日本的能源强度和电力强度在主要发达国家中都是最低的,这说明日本是世界上能源使用效率最高的国家。

(2)美国目前消耗的能源主要是煤炭、石油和天然气等矿石能源,燃烧中向大气中排放大量的二氧化碳,从而加重了全球气候变暖的趋势。

(3)我国由于技术水平低,能源强度与电力强度到很大,不仅浪费能源,而且造成严重的环境污染,今后要改进技术,提高能源的利用率。

阅读理解

If you want to help children develop language and speech skills, UCLA researchers say, listening to what they have to say is just as important as talking to them.

The effect of a conversation between a child and an adult is about six times as great as the effect of adult speech input(输入)alone, the researchers found. “Adults speaking to children helps language develop, but what matters much more is the interaction, ”said the study’s lead author, Frederick   Zimmerman, an associate professor in the School of Public Health at the University of California, Los Angeles.  The researchers also found that TV viewing didn’t have much of an effect—positively or negatively—as long as it wasn’t displacing conversations between an adult and a child.

The UCLA study included 275 families with children between 2 months and 48 months old.  They represented a variety of incomes and education.  The researchers found that, in an average day, children heard about 13, 000 spoken words from adults and participated in about 400 adult-child conversations a day.

Assessed separately, factors positively associated with language development included each additional 100 conversations a day and each 1, 000 words increase in the number of words spoken by adults and heard by children.  When looked at alone, TV was negatively associated with language development.  But, when these three factors were analyzed together, the only one that stood out was conversation between adults and children.

“The more a child speaks and interacts with an adult, the better idea a parent has about where the child is”, Zimmerman said. “Although it’s mostly done unconsciously, parents will provide feedback and correct mistakes.  They’ll also tailor their speech to the child.  Parents can give the children words by talking to them about what they’re doing, such as, ‘I’m putting on your pajamas now’.  But give your child the opportunity to talk, hopefully without the rest of the noise in the environment, ”she added. “If parents can carve out some conversation time—maybe at bath time or at dinner time—that’s a wonderful thing. ”

小题1: The researchers also found that TV viewing    .

A.could have a positive effect on a child’s language development

B.had a little effect on a child’s language development

C.affected a child’s language development more negatively than positively

D.affected a child’s language development both negatively and positively小题2:Frederick Zimmerman would probably agree that    .

A.parents should let their children talk most of the time

B.children should watch TV programs selectively

C.the conversation between parents and children should be two-way

D.it’s no good for parents to correct their children’s mistakes when they are speaking小题3: We can conclude from the last paragraph that    .

A.parents should let a child repeat what he or she says

B.bath time or dinner time is the best chance for parents to talk to a child

C.parent-child conversation can be carried out at any proper time

D.parents should leave a child talking alone小题4: What would be the best title for the passage?

A.Talk with kids, not at them

B.Let your children voice their own opinions

C.How to develop a child’s language ability

D.The importance of early child language development小题5:The underlined word “tailor” in the last paragraph can be best replaced by    .

A.control

B.improve

C.pass

D.adjust

名词解释