Stephen Hawking suffers from a rare brain disease

Stephen Hawking has much time to think because he doesn't have to work

A.Right

B.Wrong

C.Not mentioned

A.A.Right

B.B.Wrong

C.C.Not mentioned

A.A.Right

B.B.Wrong

C.C.Not mentioned

A.A.Right

B.B.Wrong

C.C.Not mentioned

ge or boundary.

A．premise

B．foundation

C．pretext

D．presentation

The plural affix in the word apples is a(n)______.

A．derivational suffix

B．inflectional suffix

C．root

D．free morpheme

Tales From Animal Hospital

David Grant

David Grant has become a familiar face to millions of fans of Animal Hospital. Here Dr. Grant tells us the very best of his personal stories about the animals he has treated, including familiar patients such as the dogs Snowy and Duchess, the delightful cat Marigold Serendipity Diamond. He also takes the reader behind the scenes at Harmsworth Memorial Animal Hospital as he describes his day, from ordinary medical cheek-ups to surgery(外科手术). Tales From Animal Hospital will delight all fans of the programme and anyone who has a lively interest in their pet, whether it be cat, dog or snake!

￡ 14.99 Hardback 272pp

ISBN 0751304417

Newton: The Last Sorcerer

Michael White

From the author of Stephen Hawking: A Life in Science, comes this colourful description of the life of the world's first modem scientist. Interesting yet based on fact. Michael White's learned yet readable new book offers a tree picture of Newton completely different from what people commonly know about him. Newton is shown as a gifted scientist with very human weaknesses who stood at the point in history where magic(魔术)ended and science began.

￡ 18.99 Hardback 320pp Fourth Estate

ISBN 1857024168

Fermat's Last Theorem

Simon Sigh

In 1963 a schoolboy called Andrew Wiles reading in his school library came across the world's greatest mathematical problem: Fermat's Last Theorem (定理). First put forward by the French mathematician Pierre de Fermat in the seventeenth century, the theorem had baffled and beaten the finest mathematical minds, including a French woman scientist who made a major advance in working out the problem, and who had to dress like a man in order to be able to study at the Ecole Polytechnique. Through unbelievable determination Andrew Wiles finally worked out the problem in 1995. An unusual story of human effort over three centuries, Fermat's Last Theorem will delight specialists and general readers alike.

￡ 12.99 Hardback 384pp Fourth Estate

ISBN 1857025210

In Michael White's book, Newton is described as______.

A．a person who did not look the same as in many pictures

B．a person who lived a colourful and meaningful life

C．a great but not perfect man

D．an old-time magician

could open up a Pandora's box of causal paradoxes. Consider, for example, the time traveler who visits the past and murders his mother when she was a young girl. How do we make sense of this？ If the girl dies, she cannot become the time traveler's mother. But if the time traveler was never born, he could not go back and murder his mother.

Paradoxes of this kind arise when the time traveler tries to change the past, which is obviously impossible. But that does not prevent someone from being a part of the past.

Suppose the time traveler goes back and rescues a young girl from murder, and this girls grows up to become his mother. The causal loop is now self-consistent and no longer paradoxical. Causal consistency might impose restrictions on what a time traveler is able to do, but it does not rule out time travel per second.

Even if time travel isn't strictly paradoxical, it is certainly weird. Consider the time traveler who leaps ahead a year and reads about a new mathematical theorem in a future edition of Scientific American. He notes the details, returns to his own time and teaches the theorem to a student, who then writes it up for Scientific American. The article is, of course, the very one that the time traveler reads. The question then arises: Where did the information about the theorem come from？ Not from the time traveler, because he read it, but not from the student either, who learned it from the time traveler. The information seemingly came into existence from nowhere, reasonlessly.

The bizarre consequences of time travel have led some scientists to reject the notion outright. Stephen W. Hawking of the University of Cambridge has proposed a "Chronology protection conjecture," which would outlaw causal loops. Because the theory of relativity is known to permit causal loops, chronology protection would require some other factors to intercede to prevent travel into the past. What might this factor be？ One suggestion is that quantum processes will come to the rescue. The existence of a time machine would allow particles to loop into their own past. Calculations hint that the ensuring disturbance would become self-reinforcing, creating a runaway surge of energy that would wreck the wormhole.

The first paragraph intends to show ______.

A．the time machine in the future would be feasible

B．the time machine in the future is just like the Pandora's ox

C．the time machine in the future is still doubtful

D．the time machine in the future might cause murder

Which of the following is a cause leading to Hawking's divorce？

A．He fell in love with one of his nurses.

B．His illness became worse.

C．He does not believe in God.

D．His temper is bad.