26.请阅读Passage 2。完成第小题。
Passage 2
We had been wanting to expand our children's horizons by taking them to a place that was unlike anything we'd been exposed to during our travels in Europe and the United States. In thinking about what was possible from Geneva, where we are based, we decided on a trip to Istanbul.
We envisioned the trip as a prelude to more exotic ones, perhaps to New Delhi or Bangkok later this year, but thought our ll-and 13-year-olds needed a first step away from manicured boulevards and pristine monuments.
What we didn't foresee was the reaction of friends, who warned that we were putting our children "in danger", referring vaguely, and most incorrectly, to disease, terrorism or just the unknown. To help us get acquainted with the peculiarities of Istanbul and to give our children a chance to choose what they were particularly interested in seeing, we bought an excellent guidebook and read it thoroughly before leaving.
Friendly warnings didn't change our planning, although we might have more prudently checked with the U.S. State Department's list of trouble spots. We didn't see a lot of children among the foreign visitors during our six-day stay in Istanbul, but we found the tourist areas quite safe, very interesting and varied enough even to suit our son, whose oft-repeated request is that we not see "every single" church and museum in a given city.
Vaccinations weren't needed for the city, but we were concerned about adapting to the water for a short stay. So we used bottled water for drinking and brushing our teeth, a precaution that may seem excessive, but we all stayed healthy. Taking the advice of a friend, we booked a hotel a 20-minute walk from most of Istanbul's major tourist sites. This not only got us some morning exercise, strolling over the Karakoy Bridge, but took us past a colorful assortment of fishermen,vendors and shoe shiners.
From a teenager and pre-teen's view, Istanbul street life is