读下图，分析回答4-6题。

4．关于P地气候特点的叙述，正确的是　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 (　　 )

　　　 A．全年高温多雨

　　　 B．全年湿润，降水量季节分配均匀，各月降水量均在50毫米以内

　　　 C．气温年较差较小，最冷月平均气温在0℃以上

　　　 D．全年受盛行西风控制，全年最低气温均在0℃以上

5．甲地所处的海峡是　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 (　　 )

　　　 A．麦哲伦海峡　　　　　　　　　　　　　　　　　　　　 B．德雷克海峡

　　　 C．英吉利海峡　　　　　　　　　　　　　　　　　　　 D．马六甲海峡

6．经观测，乙半岛的海岸近几十年来变化较大，你认为可能的原因是　　　　　　　　　 (　　 )

　　　 A．飓风与风暴潮侵袭　　　　　　　　　　　　　　 B．地震频发，海浪侵袭

　　　 C．科考队为建基地而填海造陆　　　　　　　 D．海平面上升，冰川消隔及冰架崩裂

　　 读某区域等高线图，冬至日北京时间12时20分，图中A村旗杆影子朝向正北，且测得正午太阳高度约66°34′。完成1-3题。

1．图中陡崖顶部的高度可能为　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 (　　 )

　　　 A．450米　　　　　　　　 B．370米　　　　　　　　 C．290米　　　　　　　 D．210米

2．下列关于该村所在国家的叙述，正确的是　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 (　　 )

　　　 A．地形特征为山河相间，纵列分布　　　　 B．地处两大板块交界处、多火山地震

　　　 C．石油资源丰富　　　　　　　　　　　　　　　　　　 D．气候特征为全年高温，有明显的旱雨两季

3．若春分当地时间16时，某人站在B处看见太阳从山顶落下，则B处与山顶之间相距约

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 (　　 )

　　　 A．824米　　　　　　　　 B．412米　　　　　　　　 C．624米　　　　　　　 D．712米

75. The article is mainly about 　　　　.

　 A. the reason for the foundation of “happiness workshops”

　 B. the link between people’s mood and their gene

C. the study on people’s likes and dislikes

D. the differences in people’s attitude towards life

74. It can be learned from the article that 　　　　.

　 A. drugs can be used to control people’s serotonin levels

　 B. happiness is more important than sadness

　 C. nothing can affect our mood

　 D. people with the short variant of 5-HTTLPR prefer a flower to a snake

73. Which of the following statements is true about “happiness workshops”?

　 A. Most people believe that they are a waste of money.

　 B. They will be beneficial in the long run.

　 C. The purpose of “happiness workshops” is to teach all Australians to be happy.

　 D. They are organized in the belief that happy staff can work more efficiently.

72. The “short” variants of 5-HTTLPR differ from the “long” variants of 5-HTTLPR in that 　　　　.

　 A. the former is connected with positive mood while the latter negative

　 B. the former is connected with negative mood while the latter positive

C. the former has a greater effect on one’s mood than the latter

　 D. the latter has a greater effect on one’s mood than the former

71. Various kinds of images were shown to the participants to 　　　　.

　 A. draw their attention

　 B. cater to their different tastes

　 C. find out about their reactions

　 D. teach them to improve their artistic appreciation

70. The author’s attitude to the coming age is 　　　　.

　 A. doubtful　　　 　　B. enthusiastic　　 　　　C. satisfied　　 　　D. uncertain

D

Some people may be born happy, while others are genetically negative, scientists have suggested in a study published late February in a British journal.

Earlier research had already established that the gene known as 5-HTTLPR plays a key role in determining how the neurotransmitter (神经传递素) serotonin works within the brain. Serotonin, a hormone (荷尔蒙), passes chemical messages between nerve cells. It has been closely linked to mood. Several anti-depressant (抗抑郁) drugs regulate serotonin levels. 　 Scientists had also identified three variants (变体) of the gene. Two so-called “short” variants were linked to a higher risk of depression and suicide (自杀) attempts. Unlike the two “short” variants, the “long” variant of 5-HTTLPR showed a clear dislike of negative images, such as fierce animals, and a clear liking for positive ones, such as flowers. 　 Researchers from the University of Essex in Britain showed participants a series of images, which were divided into three kinds: negative ones aimed at inspiring fear or stress such as a snake or person about to commit suicide, pleasant ones and neutral (中性的) ones. 　 The participants who had the long variant of the 5-HTTLPR gene “showed a clear dislike of negative material alongside a careful attention for positive material,” the researchers found. They paid close attention to the pretty pictures, and ignored the frightening ones. On the other hand, the short variant groups had the opposite reaction. 　 In January, the Australian government organized “happiness workshops”, teaching government staff how to be happy. The department that held the “happiness workshops” said unhappy staff weren’t productive staff. 　 Australian political opposition parties have argued that the “happiness workshops” are probably a waste of money and couldn’t increase productivity as intended. However, whether the workshop will have a happy or disappointing result, we will have to wait and see.

69. We may draw a conclusion from the passage that 　　　　.

　 A. information will play a greater role in people’s work and daily life in the future

　 B. we can foresee the future if technology develops fast enough

　 C. the ability of performing routine tasks gives you an advantage in work

　 D. robots will replace people to do all the work both in manufacturing and service industries

68. By mentioning the invention of “the chip”, the author means to say that　　　 .

　 A. we haven’t paid enough attention to the importance of high technology

　 B. the chip is the most important invention today

　 C. the power of science and technology is beyond our imagination

　 D. it’s a great challenge to apply new inventions to our life