that it's about our future, that we have to save our own future."

　　语篇解读：本文是一篇记叙文。本文讲述了电影制作人Rob Stewart为保护环境所作出的努力以及他对年轻人的影响。

　　4．What can we learn about Rob Stewart?

　　A．He cares about the environment.

　　B．He likes taking challenging jobs.

　　C．He spends most of his time traveling.

　　D．He made his first film four years ago.

　　解析：选A　推理判断题。根据Stewart拍摄的两部关于鲨鱼和气候变化的电影以及文中他所说的关于环境问题的话可知，他关爱环境。

　　5．What does the underlined word "irreversible" in Paragraph 4 mean?

　　A．Easy to accept.

　　B．Hard to notice.

　　C．Impossible to change.

　　D．Unnecessary to worry about.

　　解析：选C　词义猜测题。根据第二段中的"... If we educate people, they will make better decisions about protecting natural resources"可知，画线词所在句子是说"如果人们不采取行动，那么由于气候变化引发的严重后果将不可扭转"。

　　6．Which of the following can best describe Felix Finkbeiner?

　　A．Easygoing.　　　　　 B．Farsighted.

　　C．Peaceloving D．Selfcentered.

　　解析：选B　细节理解题。根据最后一段Felix Finkbeiner说的"we thought we had to save the polar bear ... we have to save our own future."可知，他是一个非常有远见的年轻人。

　　7．What would be the best title for the text?

　　A．The best way to help

　　B．A famous filmmaker

　　C．Tips on saving our future

　　D．Helping a planet in trouble

　　解析：选D　标题归纳题。气候变化引发了一系列严峻的问题。本文讲述了电影制作人Rob Stewart以及在他的影响下其他年轻人为保护环境所作出的努力。D项全面地概括了本文保护地球环境这一主题。

　　C

Adding math talk to story time at home is a winning factor for children's math achievement, according to a new research from a university. The study from psychologists Sian Beilock and