Natural habitats(栖息地) being lost entirely or broken into ever­smaller parts have long been understood as some of the primary causes of species' disappearing across the world.The expanding of the cities threatens to increase the extent of both habitat deprivation and breaking.These threats are well known among conservationists，but there are differences in opinions on how best to respond.

　　There're many problems in making humans move into cities，but the near­term planning issues caused by autonomous vehicles will worsen the challenge given that they will lift demand to live in "unspared" lands.Alternatively，some conservationists advocate "land­sharing"，in which human communities redesign the way we farm and live so as to coexist with wildlife.Autonomous vehicles bring significant challenges for either approach.Whichever approach is taken，we'll need to redesign existing systems and policies to take account of the increased range that driverless transport speeds.This may involve new zoning laws to protect wider areas of countryside than at present.It certainly requires further development of green basic facilities and services，habitat corridors and "greenways".It might also involve engineering solutions，especially given the fact that autonomous vehicles should be much more suitable to be driven underground.

1.What does Paragraph 2 mainly talk about?

A.The future of driverless cars.

B.The advantages of driverless cars.

C.The working principle of driverless cars.

D.The significance of designing driverless cars.

2.What does the author think about driverless cars?

A.They can greatly affect the way people work.

B.They can minimize the risk of traffic accidents.

C.They may cause change in people's living places.

D.They may attract more people to downtown.

3.What does the author say about the green belt?

A.It makes a valuable contribution to suburban spread.

B.It is a necessary part of current transport systems.

C.Its importance is weakened by driverless cars.

D.It is designed for environmental protection.

4.What does the underlined word "deprivation" in Paragraph 7 refer to?

A.Loss. B.Shortage.

C.Protection. D.Expansion.

5.What is implied in the last paragraph?

A.The land­sharing approach gains widespread support.

B.The countryside is a fit place for driverless cars.