从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项。

    Danger-junkie orangutans(猩猩) in Borneo climb dead trees and shake then until they begin to fall. They scream with excitement as they cling to the falling tree. Just before the tree hits the ground the orangutans leap to another tree or vine, narrowly escaping death. While no one cab ask orangutans if they enjoy it as a person playing an extreme sport, one animal behaviorist sees this monkey fun as a bit of harmless thrill-seeking.

    A growing number of scientists agree that animals are conscious and capable of experiencing basic emotions(情感), such as happiness, sadness, boredom or depression. A few scientists even see the possibility for higher animal emotions like love, jealousy and spite.

    Five years ago, behaviorist and animal-rights activist Dr. Jonathan Balcombe stood on a Virginia hotel balcony watching two crows intimately groom (清洁) each other in the comfort of an abandoned billboard. He felt that the birds liked what they were doing, even if engaged in a natural, beneficial act, such as picking parasites (寄生虫) off the other's feathers. That moment changed the way he would view animals forever and led to a book, “Pleasurable Kingdom: Animals and the Nature of Feeling Good”, which is filled with hundreds of examples of animals living it up thanks to developed senses of touch, taste, sight, sound and smell.

    Balcombe recounts a favorite example of Kenyan hippos (河马) having high-end spa treatment in a fresh water spring. They splay their toes, open their mouths wide and wait for a school of cleaner fish to remove parasites and slough off dead skin, he recalls. Balcombe knows that the hippos and the fish both benefit from this arrangement. “My interpretation is that it is also enjoyable for them ,” he says.

从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项。

    Danger-junkie orangutans(猩猩) in Borneo climb dead trees and shake then until they begin to fall. They scream with excitement as they cling to the falling tree. Just before the tree hits the ground the orangutans leap to another tree or vine, narrowly escaping death. While no one cab ask orangutans if they enjoy it as a person playing an extreme sport, one animal behaviorist sees this monkey fun as a bit of harmless thrill-seeking.

    A growing number of scientists agree that animals are conscious and capable of experiencing basic emotions(情感), such as happiness, sadness, boredom or depression. A few scientists even see the possibility for higher animal emotions like love, jealousy and spite.

    Five years ago, behaviorist and animal-rights activist Dr. Jonathan Balcombe stood on a Virginia hotel balcony watching two crows intimately groom (清洁) each other in the comfort of an abandoned billboard. He felt that the birds liked what they were doing, even if engaged in a natural, beneficial act, such as picking parasites (寄生虫) off the other's feathers. That moment changed the way he would view animals forever and led to a book, “Pleasurable Kingdom: Animals and the Nature of Feeling Good”, which is filled with hundreds of examples of animals living it up thanks to developed senses of touch, taste, sight, sound and smell.

    Balcombe recounts a favorite example of Kenyan hippos (河马) having high-end spa treatment in a fresh water spring. They splay their toes, open their mouths wide and wait for a school of cleaner fish to remove parasites and slough off dead skin, he recalls. Balcombe knows that the hippos and the fish both benefit from this arrangement. “My interpretation is that it is also enjoyable for them ,” he says.

Edison is a famous {#blank#}1{#/blank#}(发明家) all over the world.

阅读下面材料，在空白处填入适当的内容或括号内单词的正确形式。

    There was no one quite like my father. When any other man had an extra dollar, he bought a drink; when Father had an extra dollar, he bought a book. Other people had pictures on their walls, or at least a calendar; we had books, 3000 of them, {#blank#}1{#/blank#}(line) every surface of our little four-room house {#blank#}2{#/blank#} every subject. Father was the {#blank#}3{#/blank#} (more) persistent (固执的) scholar I ever knew. Every summer he took a month or so off to attend classes. Eventually, he earned seven degrees, attended 11 different colleges and universities. My sister and I were the immediate beneficiaries of Father's insatiable (不能满足的){#blank#}4{#/blank#}(hungry) to learn.

    Before I was three, my father was reading aloud to me. Thereafter, I read aloud to him so he'd work on my {#blank#}5{#/blank#} (pronounce). By the time I was in the fifth grade, I'd recite {#blank#}6{#/blank#} classical literature to poetry and had to be prepared to do {#blank#}7{#/blank#} Then Father would warn by quoting a saying from Shakespeare, “{#blank#}8{#/blank#} all the year were playing holidays, to sport would be as tedious(乏味的) as to work. “Obviously, his efforts weren't {#blank#}9{#/blank#} (entire) in vain, for my voice has enable me to earn a fair livelihood. But that fact doesn't begin to define the most debt {#blank#}10{#/blank#} I owe my father.

阅读下面材料，在空白处填入适当的内容或括号内单词的正确形式。

    There was no one quite like my father. When any other man had an extra dollar, he bought a drink; when Father had an extra dollar, he bought a book. Other people had pictures on their walls, or at least a calendar; we had books, 3000 of them, {#blank#}1{#/blank#}(line) every surface of our little four-room house {#blank#}2{#/blank#} every subject. Father was the {#blank#}3{#/blank#} (more) persistent (固执的) scholar I ever knew. Every summer he took a month or so off to attend classes. Eventually, he earned seven degrees, attended 11 different colleges and universities. My sister and I were the immediate beneficiaries of Father's insatiable (不能满足的){#blank#}4{#/blank#}(hungry) to learn.

    Before I was three, my father was reading aloud to me. Thereafter, I read aloud to him so he'd work on my {#blank#}5{#/blank#} (pronounce). By the time I was in the fifth grade, I'd recite {#blank#}6{#/blank#} classical literature to poetry and had to be prepared to do {#blank#}7{#/blank#} Then Father would warn by quoting a saying from Shakespeare, “{#blank#}8{#/blank#} all the year were playing holidays, to sport would be as tedious(乏味的) as to work. “Obviously, his efforts weren't {#blank#}9{#/blank#} (entire) in vain, for my voice has enable me to earn a fair livelihood. But that fact doesn't begin to define the most debt {#blank#}10{#/blank#} I owe my father.

The bridge was {#blank#}1{#/blank#}(设计) in a unique style.