问题 综合

阅读所给材料,完成有关要求。(11分)

材料一:2009年2月7日,我国第一条引进境外天然气资源的大型管道工程西气东输二线工程在深圳正式开工。下图是“西气东输一线”、“西气东输二线”走向示意图(图甲)。

材料二:广东省能源自给率图(图乙)。

材料三:广东省能源消费总量增长率和GDP增长率统计图(图丙)。

材料四:2007年12月发改委下发紧急通知:“立即暂停核准和备案玉米加工项目,并对在建和拟建项目进行全面清理”;“坚持非粮为主,积极稳妥推动生物燃料乙醇产业发展”。

材料五:2007年我国玉米消费结构图(图丁)。

(1)据材料一分析,在气源地方面,西气东输二线与一线相比,最明显的变化是                 

(2)材料二、三表明,广东省当前能源供需特点是:①             ;②               。 

(3)2005年5月,中国一哈萨克斯坦石油管道建成输油,这历史性地标志着中国首次实现以管道方式从境外进口原油。简述这样做的意义。

(4)“用玉米生产燃料乙醇不是不好,而是不符合中国国情”。请根据所学知识及材料四

解释:①玉米生产燃料乙醇的意义;②不符合中国国情的原因。

答案

(1)来自境外 (1分)

(2) ①自给率低(先高后低,近年略有提高)②需求量大(越来越大)(2分)

(3)中哈两国陆上相连距离近,运输成本低;同为上海合作组织成员,政治安全;

与海上运输相比,更安全便捷;减少我国对中东原油的依赖,实现进口渠道多元化。(答3点得3分)

(4)①可缓解矿物能源紧张的局面;利于保护和提高大气质童;所用原料可以再生,利于可持续发展(3分)②我国畜牧业发展快,饲料需求量大;我国人口众多,粮食需求量大(2分)

本题考查资源和能源的跨地区调配问题。(1)西气东输二线工程主要气源来源于中亚地区;而一线工程来源于新疆;(2)需要从材料二和材料三中得出来,广东省的能源自给率很低,且能源的消费量在逐渐增加;(3)从哈萨克斯坦进口天然气一方面可以使我国进口能源渠道多元化,另一方面由于距离中亚较近,成本较低;(4)乙醇作燃料可缓解我国能源紧张状况,且较为清洁,对环境污染小,且原料为可再生资源,利于可持续发展。但生产乙醇需消耗大量玉米,将加重我国的粮食危机。

阅读理解

March 16 is World Sleep Day. This year’s slogan is “Breathe Easily, Sleep Well”. Its aim is to celebrate the *benefits of good and healthy sleep.

Fangfang, from Liaoning, just became a high school student last September. She gets up at 5:30 a.m. every day and goes to bed at about midnight. Fangfang feels sleepy all the time. “I want to finish all my homework first,” she said.

Sleep is like food for the brain. Enough sleep helps the body and brain grow and develop. According to the National Sleep *Foundation in the US, adults need seven to nine hours of sleep every night. For students who are 10 to 17 years old, a healthy amount is about eight to nine hours every night.

But many students don’t get enough sleep because of early school start time and heavy homework. About 80 percent of middle school students don’t get enough sleep, the China Youth and Children Research Center reported. For some students, they want to sleep early, but they keep worrying about their schoolwork and can’t fall asleep quickly. For others,they may even have insomnia, and usually they have to ask the doctors for help.

These sleeping problems greatly *affect people’s life. Some doctors found out that *lack of sleep for teenagers lead to poor grades. Students without enough sleep cannot pay attention in class or do well in sports. Also, they often become anxious easily.

Luckily, with good sleep habits, it is easier to fall asleep. Some of these good habits include *avoiding drinks that make people excited late in the day, going to sleep at the same time every night, and sleeping in a comfortable place that is dark, quiet, and neither too warm nor too cold.

More tips to get a good night’s sleep:

Exercising during the day. You’d better do sports three hours before going to bed.

Don’t eat big meals before bedtime. Drink a warm glass of milk.

If you stay awake worrying about things, try making a list of things that you need to do before you go to bed.

小题1:How much sleep do students aged from 10 to 17 need every night? 

A.7 hours.

B.8-9 hours.

C.10-12 hours

D.Less than 7 hours.小题2:What does the word “insomnia” mean in Paragraph 4?

A.失眠症.

B.好动症.

C.咽喉炎.

D.关节炎.小题3:If teenagers don’t get enough sleep, they may _____________. 

A.do well in sports

B.grow and develop better

C.feel sleepy in class

D.do much better in studies小题4:Which of the following is a good sleeping habit according to the passage?  

A.Do exercise at night before going to bed.

B.Going to sleep at the same time every night.

C.Going to sleep in a place where it is bright.

D.Eat big meals or drink a lot of wine at night.小题5:What is the main idea of the passage?   

A.People should sleep well to live healthy and study better.

B.Teenagers should sleep longer on Saturdays and Sundays.

C.People should see the doctor if they don’t have enough sleep.

D.Teenagers don’t get enough sleep because of heavy homework.

选择题