4．What's the best title for the text?

　　A．A lonely life in a new country.

　　B．Breaking the barrier.

　　C．Great expectations.

　　D．Life in the UK.

　　B　[ 标题归纳题。本文介绍了初来英国生活的三个孩子的经历，从他们的经历中我们可以看出，他们要想适应这里的生活需要克服重重障碍，由此可知B项最适合作标题。]

　　B

　　Among the seven wonders of the ancient architectural (建筑方面的) world，the pyramids in Egypt are the only ones still standing.

　　For 1，000 years，they were the tallest buildings in the world.Built with prehistoric technology，they were an architectural mystery，as strange as the Sphinx (狮身人面像)．

　　No one really knows how they were built.The first historical record，by the Greek writer Heroditus，came 2，000 years later.Without hard facts，there have been many theories.

　　Hollywood has mostly followed the examples from the Greek record: 100，000 slaves worked hard for 20 years.Others believe a very large slope snaked around the pyramids.An American recently put forward the theory that kites could have lifted the 2­ton stones.

　　Now Houdin，a French architect，says that after studying the pyramids for eight years，he has solved the mystery with the help of 3­D computer animation (三维动画)．He believes the pyramids were built from the inside out through an internal slope that goes around a central point."This is completely new.Everyone before me thought that the pyramids were built from the outside，and only from the outside，" he said.

Scholars of ancient Egypt are interested."It's a theory which sounds reasonable.Scholars of ancient Egypt agree it ought to be tested，and it doesn't cause