阅读下面这篇短文，短文后有2项测试任务：(1)第23～26题要求从所给的6个选项中为规定段每段选择1个正确的小标题；(2)第27～30题要求从所给的6个选项中选择4个正确选项，分别完成每个句子。
The first anybody knew about Dutchman Frank Siegmund and his
family was when workmen tramping through a field found a narrow steel chimney
protruding through the grass. Closer inspection revealed a chink of sky-light
window among the thistles, and when amazed investigators moved down the side of
the hill they came across a pine door complete with leaded diamond glass and a
brass knocker set into an underground building. The Siegmunds had managed to
live undetected for six years outside the border town of Breda, in Holland. They
are the latest in a clutch of individualistic homemakers who have burrowed
underground in search of tranquility. 2. Most, failing foul of
strict building regulations, have been forced to dismantle their individualistic
homes and return to more conventional lifestyles. But subterranean
suburbia, Dutchstyle, is about to become respectable and chic. Seven luxury
homes cosseted away inside a high earth-covered noise embankment next to the
main Tilburg city road recently went on the market for $ 296,500 each. The
foundations had yet to be dug, but customers queued up to buy the unusual
part-submerged houses, whose back wall consists of a grassy mound and whose
front is a long glass gallery. 3. The Dutch are not the only
would-be moles. Growing numbers of Europeans are burrowing below ground to
create houses, offices, discos and shopping malls. It is already proving a way
of life in extreme climates; in winter months in Montreal, Canada, for instance,
citizens can escape the cold in an underground complex complete with shops and
even health clinics. In Tokyo builders are planning a massive underground city
to be begun in the next decade, and underground shopping malls are already
common in Japan, where 90 percent of the population is squeezed into 20 percent
of the landspace. 4. Building big commercial buildings
underground can be a way to avid disfiguring r threatening a beautiful or
’environ-mentally sensitive’ landscape. Indeed many of the buildings which
consume most land--such as cinemas, supermarkets, theatres, warehouses or
libraries— have no need to be on the surface since they do not need
windows. 5. There are big advantages, too, when it comes to
private homes. A developrrient of 194 houses which would take up 14 hectares of
land above ground would occupy 2.7 hectares below it, while the number of roads
would be halved. Under several metres of earth, noise is minimal and insulation
is excellent. ’We get 40 to 50 enquiries a week, ’ says Peter Carpenter,
secretary of the British Earth Sheltering Association, which builds similar
homes in Britain. ’ people see this as a way of building for the future. ’ An
underground dweller himself, Carpenter has never paid a heating bill, thanks to
solar panels and natural insulation. 6. In Europe, the obstacle
has been conservative local authorities and developers who prefer to ensure
quick sales with conventional mass-produced housing. But the Dutch development
was greeted with undisguised relief by South Limburg planners because of
Holland’s chronic shortage of land. It was the Tilburg architect Jo Hurkmans who
hit on the idea of making use of noise embankments on main roads. His
two-floored, four-bedroomed, two-bathroomed detached homes are
now taking shape. ’They are not so much below the earth as in it, ’ he says.
’All the light will come through the glass front, which runs from the second
floor ceiling to the ground. Areas which do not need much natural lighting are
at the back. The living accommodation is to the front so nobody notices that the
back is dark.’ Paragraph 5 ______