company , says some big-name actors are preparing for a day when their life as performers will continue after their death. Handler says some perfomers spend millions digitally preserving themselves in the company's archive(档案库). Hendler and other experts say we are a long way from being able to get a great performance from a dead actor.

But do audiences really want to watch dead actors? "All of us will leave the world and that's OK." Fink says. "Let the new actors be seen. Don't hang on to something that no longer exists."

24. What do we know about the film Blade Runner 2049?

A. It hires two famous but old actors.

B. It tells about the effect of technology.

C. It has won awards for its special effects.

D. It creates a much younger image of an actress.

25. What is Paragraph 3 mainly about?

A. Effects of technology on extras.

B. The increasing demand for extras.

C. Ways of making big scenes in films.

D. Changes film makers are experiencing.

26. What can we learn from Paragraph 4?

A. Actors' performance skills are no longer important.

B. Movie stars may be performing even after their death.

C. Special effects make the quality of films improve a lot.

D. Actors will lose their jobs because of advancing technology.

27. What does Fink think of the actors preserving themselves digitally?

A. It is unnecessary. B. It is worthwhile.

C. It is reasonable. D. It is strange.

C

The Northwest Passage is a sea route that connects the Atlantic Ocean ( 大西洋) and the Pacific Ocean . For many centuries, it was looked at as a possible trade route but it has always been blocked by the Arctic (北极的)ice. Recently the ice has been melting (融化) at a very strong pace and experts think that the waterway might open up for business ships in the near future.

Canadian scientists say that within the next twenty years the route could be open during the summer months. One of the main problems to overcome is the permanent ice sheets that do not come and go every year but stay all year long.

In order to sail through the Northwest Passage, stronger ships will be needed to break ice sheets that float around . But since it costs a lot of money, many companies will still use the Panama Canal to get their goods from one side of the American coast to the other.

However, even if ice breakers manage to keep the Northwest Passage open for a longer period of time, it will take normal ships much longer to sail around the many islands in the Canadian Arctic. And another problem for shipping is that many parts of Arctic Ocean do not have accurate (精确的) maps ( most maps