题目内容

【题目】读“我国某城市人口与就业变化统计表”,据此完成下面小题。

1造成该市城区就业人口大于常住人口的最主要因素是

A.环境因素B.产业外迁C.农村工业化D.住房价格

2自2000年以来,该市在城市化过程中出现的最突出问题是

A.人均绿地减少B.就业压力增大

C.社会治安变差D.交通拥堵加剧

【答案】

1D

2D

【解析】

1根据表格,城市郊区人口迅速增长,但常住人口与就业人口差距大,说明许多是城市工作人群,不住在城区,而是在郊区居住,这是由于随着城市发展,城市土地价格上涨,城区住房价格高,工薪阶层选择在房价相对较低的郊区购买住房;产业外迁,城区的就业人口就会下降;环境因素不是主要原因;农村工业化会使得城区产业向农村地区转移,城区就业人口减少,D正确。故选D

2根据表格中城区常住人口与就业人口数的不同,结合上题结论,可知每天大量上班族往返于城市和郊区,这就将加剧交通拥堵,D正确。绿地减少、治安变差、就业压力都不是最突出的问题,ABC错误。故选D

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【题目】

1. Exercise

Studies show that 30minutes of mild exercise a day will increase your life span. This doesn't mean you have to run three miles or start jumping. Simple activities such as walking, gardening or taking exercise classes will work.

2. Enjoy people

Contacts with family and friends help fight life-sapping depression and stress. Studies show that people socialize regularly live longer than loners. Interact daily with family members and friends. If you are isolated, make a point of joining social clubs or church groups so you can laugh and share life's joys.

3. Stay mentally active

This is very important-use it or lose it!People who allow their mental faculties to decline run the risk of shortening their lives through falls and other injuries, and not being able to take care of themselves. Read the newspaper, visit the public library, balance your checkbook without a calculator, and exercise your brain by doing crossword puzzle.

4. Diet

The key words are"high-fiber, low-fat". Cut back on red meat, salt, white flour, white sugar, alcohol and coffee. Start eating a balanced diet including lots of fruit, grains, raw vegetables and nuts.

5. Positive attitude

By approaching life with a positive outlook you increase your chances of living longer. Stay optimistic-always search for the silver lining. Studies show people who see life as an enjoyable challenge, rather than a constant trial, cope better and prolong their life spans.

6. medication mix

As we age, we are more likely to take medications. Sometimes this leads to over-medication, which can be disabling and even deadly. Ask your doctor if the drugs you take are really necessary. Make sure there is no danger of a bad drug interaction from your medication. Used correctly, medicines can help you live longer and more comfortably.

7. Volunteer

Helping others increases your self-esteem and makes you feel like a valuable contributor.

1Which of the following does NOT increase your life span___

A.Staying happy about lifeB.Exercising as much as possible

C.Exercising your brain frequentlyD.Enjoying your social life

2People who do not stay mentally active are more likely to___.

A.become ignorantB.lose their minds

C.shorten their livesD.become slow in movement

3Which of the following is correct about medication___

A.Appropriate medication is necessary.

B.Medication is always helpful to you.

C.Doctors suggest taking expensive medicines.

D.Drugs are unnecessary because of side-effects.

【题目】阅读图文材料,完成下列要求。

纳特龙湖(见图)是一个主要依靠周边河流及火山温泉补给的内流湖,该湖位于肯尼亚和坦桑尼亚交界处,湖面长约57公里,宽22公里。雨季时,湖面面积可达900平方公里,旱季时,湖面有60%—70%的面积干涸,成为一个个互不相连的水洼。由于含有特殊的火山熔岩成分,湖水有高盐碱、高毒牲的特点,而高盐碱湖水是大量藻类理想的生长环境。盐湖周边高度盐碱化的土壤及湖面上挥发的有毒气体不适合大多数生物存活,但小火烈鸟却适应了这样严酷的环境并得以在这里生存繁衍。

小火烈鸟主要栖息在盐水湖泊、沼泽等浅水地带,并以水中藻类为食。纳特龙湖被誉为“小火烈鸟的摇篮”,常年有100万到200万只小火烈鸟栖息。每年几乎所有的小火烈鸟分批迁徙到纳特龙湖并在盐湖中部露出水面的高地建巢繁殖,使这里成为小火烈鸟唯一的繁殖地。2018年,“厄尔尼诺”现象和强台风带来14年来最大的降雨量,造成十几年最大的洪灾,纳特龙湖中的小火烈鸟繁殖受到灾难性冲击,面对强碱性湖水的侵袭,没有防护能力的鸟蛋无法孵化。

(1)运用水循环原理,说明纳特龙湖湖水盐碱度高的主要原因。

(2)分析纳特龙湖成为“小火烈鸟摇篮”的主要原因。

(3)推断纳特龙湖小火烈鸟繁衍面临的潜在自然威胁。

(4)纳特龙湖中富集丰富的晶碱石,可以用于生产纯碱和工业用盐,同时还可以为饮料厂提供苏打粉。有人反对在纳特龙湖周边地区建立大量的化工厂,请明理由。

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