A.hadbeenmade B.made C.havingmade D.tobemade

9. Big data is the driving force behind this zone's development, a steady stream of new big data construction projects constantly　　　.

A.being introduced B.introducing

C.having introduced D.to be introduced

10. Neon lights are affecting the birds' biological clock, leading to them　　　when they should be asleep.

A.awaken B.being awake C.waking D.to wake

第二节 任务型阅读

　　Population Change

　　Why is the world's population growing?The answer is not what you might think. The reason for the explosion is not that people have been reproducing like rabbits, but that people have stopped dropping dead like flies. In 1900, people died at the average age of 30. By 2000 the average age was 65. But while increasing health was a typical feature of the 20th century, declining birth rate could be a defining one of the 21st.

　　Statistics show that the average number of births per woman has fallen from 4.9 in the early 1960s to 2.5 nowadays. Furthermore, around 50% of the world's population live in regions where the figure is now below the replacement level(i.e.2.1 births per woman)and almost all developed nations are experiencing sub-replacement birth rate. You might think that developing nations would make up the loss(especially since 80% of the world's people now live in such nations), but you'd be wrong. Declining birth rate is a major problem in many developing regions too, which might cause catastrophic global shortages of work force within a few decades.

　　A great decline in young work force is likely to occur in China, for instance. What does it imply?First, China needs to undergo rapid economic development before a population decline hits the country. Second, if other factors such as technology remain constant, economic growth and material expectations will fall well below recent standards and this could invite trouble.

Russia is another country with population problems that could break its economic promise. Since 1992 the number of people dying has been bigger than that