【推荐3】Writing down your progress allows you to obiectively ________ your work.

A．insist

B．evaluate

C．ban

D．sweep

【推荐1】Today we gather to ________ Pierre de Coubertin, who in 1894 resurrected a legendary ancient ritual that had been ________ to humanity for more than 15 centuries.

A．appreciate … lost	B．appreciate … extincted
C．celebrate … lost	D．celebrate … extincted

【推荐3】Established in 1964, The International Union for Conservation of Nature’s Red List of ________ Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species.

A．Extinct

B．Warned

C．Deadly

D．Threatened

【推荐2】Researchers who have been working on non-avian dinosaurs were surprised to see an embryo beautifully ________inside a dinosaur egg,________ in a bird-like posture.

A．preserving … laying	B．reserving … sitting
C．preserved … lying	D．reserved … seated

【推荐3】When working on a tough project, you need to keep ________ the guidelines to ensure you’re always on the track.

A．preserving

B．reserving

C．observing

D．deserving

【推荐3】At the end of each semester, students need to hand in a research paper ________ by the professor.

A．seized

B．assigned

C．sharpened

D．elected